diff --git a/.gitignore b/.gitignore
index d748fde..85e5801 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,8 +3,14 @@
 .settings
 .project
 ClusterControllerService
+rttest
+mdtest
+ittest
+asterix_logs
+build
+bin
 asterix-app/rttest
 asterix-app/mdtest/
 asterix-app/opttest/
 build
-asterix_logs
\ No newline at end of file
+asterix_logs
diff --git a/asterix-algebra/pom.xml b/asterix-algebra/pom.xml
index 074d693..09db13b 100644
--- a/asterix-algebra/pom.xml
+++ b/asterix-algebra/pom.xml
@@ -106,6 +106,12 @@
 			<version>0.8.1-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-external-data</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
                 <dependency>
                         <groupId>edu.uci.ics.asterix</groupId>
                         <artifactId>asterix-transactions</artifactId>
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
index 6a48a17..7fc9bcf 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
@@ -18,10 +18,13 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
+import edu.uci.ics.asterix.external.library.ExternalFunctionDescriptorProvider;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
 import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.comparisons.ComparisonEvalFactory;
 import edu.uci.ics.asterix.runtime.formats.FormatUtils;
@@ -138,9 +141,18 @@
         }
 
         IFunctionDescriptor fd = null;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        IDataFormat format = FormatUtils.getDefaultFormat();
-        fd = format.resolveFunction(expr, env);
+        if (!(expr.getFunctionInfo() instanceof IExternalFunctionInfo)) {
+            AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
+ IDataFormat format = FormatUtils.getDefaultFormat();
+            fd = format.resolveFunction(expr, env);
+        } else {
+            try {
+                fd = ExternalFunctionDescriptorProvider.getExternalFunctionDescriptor((IExternalFunctionInfo) expr
+                        .getFunctionInfo());
+            } catch (AsterixException ae) {
+                throw new AlgebricksException(ae);
+            }
+        }
         return fd.createEvaluatorFactory(args);
     }
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
index 642ef22..091d1c1 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
@@ -26,6 +26,8 @@
 import edu.uci.ics.asterix.metadata.declared.ExternalFeedDataSource;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
@@ -111,7 +113,6 @@
                     }
                 }
                 v.add(unnest.getVariable());
-
                 DataSourceScanOperator scan = new DataSourceScanOperator(v, metadataProvider.findDataSource(asid));
                 List<Mutable<ILogicalOperator>> scanInpList = scan.getInputs();
                 scanInpList.addAll(unnest.getInputs());
@@ -155,11 +156,20 @@
                 }
 
                 AqlSourceId asid = new AqlSourceId(dataverseName, datasetName);
+                String policyName = metadataProvider.getConfig().get(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY);
+                FeedPolicy policy = metadataProvider.findFeedPolicy(dataverseName, policyName);
+                if (policy == null) {
+                    policy = BuiltinFeedPolicies.getFeedPolicy(policyName);
+                    if (policy == null) {
+                        throw new AlgebricksException("Unknown feed policy:" + policyName);
+                    }
+                }
+
                 ArrayList<LogicalVariable> v = new ArrayList<LogicalVariable>();
                 v.add(unnest.getVariable());
 
                 DataSourceScanOperator scan = new DataSourceScanOperator(v, createDummyFeedDataSource(asid, dataset,
-                        metadataProvider));
+                        metadataProvider, policy));
 
                 List<Mutable<ILogicalOperator>> scanInpList = scan.getInputs();
                 scanInpList.addAll(unnest.getInputs());
@@ -169,6 +179,7 @@
 
                 return true;
             }
+
         }
 
         return false;
@@ -184,7 +195,7 @@
     }
 
     private AqlDataSource createDummyFeedDataSource(AqlSourceId aqlId, Dataset dataset,
-            AqlMetadataProvider metadataProvider) throws AlgebricksException {
+            AqlMetadataProvider metadataProvider, FeedPolicy feedPolicy) throws AlgebricksException {
         if (!aqlId.getDataverseName().equals(
                 metadataProvider.getDefaultDataverse() == null ? null : metadataProvider.getDefaultDataverse()
                         .getDataverseName())) {
@@ -194,6 +205,7 @@
         IAType itemType = metadataProvider.findType(dataset.getDataverseName(), tName);
         ExternalFeedDataSource extDataSource = new ExternalFeedDataSource(aqlId, dataset, itemType,
                 AqlDataSource.AqlDataSourceType.EXTERNAL_FEED);
+        extDataSource.getProperties().put(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY, feedPolicy);
         return extDataSource;
     }
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
index c67a4e5..d25dba3 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
@@ -223,7 +223,8 @@
         boolean changed = false;
         for (int j = 0; j < args.size(); j++) {
             ILogicalExpression arg = args.get(j).getValue();
-            IAType currentItemType = (inputItemType == null || inputItemType == BuiltinType.ANY) ? (IAType) env.getType(arg) : inputItemType;
+            IAType currentItemType = (inputItemType == null || inputItemType == BuiltinType.ANY) ? (IAType) env
+                    .getType(arg) : inputItemType;
             switch (arg.getExpressionTag()) {
                 case FUNCTION_CALL:
                     ScalarFunctionCallExpression argFunc = (ScalarFunctionCallExpression) arg;
@@ -252,6 +253,10 @@
      */
     private static boolean staticRecordTypeCast(AbstractFunctionCallExpression func, ARecordType reqType,
             ARecordType inputType, IVariableTypeEnvironment env) throws AlgebricksException {
+        if (!(func.getFunctionIdentifier() == AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR || func
+                .getFunctionIdentifier() == AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR)) {
+            return false;
+        }
         IAType[] reqFieldTypes = reqType.getFieldTypes();
         String[] reqFieldNames = reqType.getFieldNames();
         IAType[] inputFieldTypes = inputType.getFieldTypes();
@@ -463,12 +468,9 @@
                     reqFieldType = DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE;
                     fi = AsterixBuiltinFunctions.CAST_LIST;
             }
-            if (fi != null
-                    && ! inputFieldType.equals(reqFieldType)
-                    && parameterVars.size() > 0) {
+            if (fi != null && !inputFieldType.equals(reqFieldType) && parameterVars.size() > 0) {
                 //inject dynamic type casting
-                injectCastFunction(FunctionUtils.getFunctionInfo(fi),
-                        reqFieldType, inputFieldType, expRef, argExpr);
+                injectCastFunction(FunctionUtils.getFunctionInfo(fi), reqFieldType, inputFieldType, expRef, argExpr);
                 castInjected = true;
             }
             if (argExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
index 6f92d3a..20d376a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
@@ -99,6 +99,7 @@
 import edu.uci.ics.asterix.metadata.declared.ResultSetSinkId;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.metadata.functions.ExternalFunctionCompilerUtil;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AString;
@@ -508,13 +509,18 @@
             return null;
         }
         AbstractFunctionCallExpression f = null;
-        if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+        if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_JAVA)) {
+            IFunctionInfo finfo = ExternalFunctionCompilerUtil.getExternalFunctionInfo(
+                    metadataProvider.getMetadataTxnContext(), function);
+            f = new ScalarFunctionCallExpression(finfo, args);
+        } else if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
             IFunctionInfo finfo = new AsterixFunctionInfo(signature);
-            return new ScalarFunctionCallExpression(finfo, args);
+            f = new ScalarFunctionCallExpression(finfo, args);
         } else {
             throw new MetadataException(" User defined functions written in " + function.getLanguage()
                     + " are not supported");
         }
+        return f;
     }
 
     private AbstractFunctionCallExpression lookupBuiltinFunction(String functionName, int arity,
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
index 36f0824..f2cc487 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
@@ -325,12 +325,15 @@
     public static class CompiledBeginFeedStatement implements ICompiledDmlStatement {
         private String dataverseName;
         private String datasetName;
+        private String policyName;
         private Query query;
         private int varCounter;
 
-        public CompiledBeginFeedStatement(String dataverseName, String datasetName, Query query, int varCounter) {
+        public CompiledBeginFeedStatement(String dataverseName, String datasetName, String policyName, Query query,
+                int varCounter) {
             this.dataverseName = dataverseName;
             this.datasetName = datasetName;
+            this.policyName = policyName;
             this.query = query;
             this.varCounter = varCounter;
         }
@@ -361,6 +364,10 @@
         public Kind getKind() {
             return Kind.BEGIN_FEED;
         }
+
+        public String getPolicyName() {
+            return policyName;
+        }
     }
 
     public static class CompiledControlFeedStatement implements ICompiledDmlStatement {
diff --git a/asterix-app/.gitignore b/asterix-app/.gitignore
deleted file mode 100644
index ea8c4bf..0000000
--- a/asterix-app/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/target
diff --git a/asterix-app/pom.xml b/asterix-app/pom.xml
index e80e33d..06d289e 100644
--- a/asterix-app/pom.xml
+++ b/asterix-app/pom.xml
@@ -1,18 +1,14 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
@@ -90,7 +86,7 @@
 						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement> 
 						</additionalClasspathElements> -->
 					<forkMode>pertest</forkMode>
-					<argLine>-enableassertions -Xmx${test.heap.size}m 
+					<argLine>-enableassertions -Xmx${test.heap.size}m
 						-Dfile.encoding=UTF-8
 						-Djava.util.logging.config.file=src/test/resources/logging.properties
 						-Xdebug
@@ -106,12 +102,6 @@
 
 	<dependencies>
 		<dependency>
-			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-algebra</artifactId>
-			<version>0.8.1-SNAPSHOT</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
 			<groupId>javax.servlet</groupId>
 			<artifactId>servlet-api</artifactId>
 			<type>jar</type>
@@ -149,9 +139,15 @@
 			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
 		<dependency>
-            <groupId>edu.uci.ics.hyracks</groupId>
-            <artifactId>hyracks-client</artifactId>
-        </dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-client</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-algebra</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-aql</artifactId>
@@ -187,19 +183,22 @@
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
-                <dependency>
-                        <groupId>edu.uci.ics.asterix</groupId>
-                        <artifactId>asterix-common</artifactId>
-                        <version>0.8.1-SNAPSHOT</version>
-                        <type>test-jar</type>
-                        <scope>test</scope>
-                </dependency>
-                <dependency>
-                        <groupId>edu.uci.ics.asterix</groupId>
-                        <artifactId>asterix-transactions</artifactId>
-                        <version>0.8.1-SNAPSHOT</version>
-                        <scope>compile</scope>
-                </dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-common</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<type>test-jar</type>
+			<scope>test</scope>
+		</dependency>
+		<!-- posssible remove this <dependency> <groupId>com.kenai.nbpwr</groupId> 
+			<artifactId>org-apache-commons-io</artifactId> <version>1.3.1-201002241208</version> 
+			<scope>test</scope> </dependency> -->
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-transactions</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.apache.hadoop</groupId>
 			<artifactId>hadoop-core</artifactId>
@@ -227,12 +226,12 @@
 			<type>jar</type>
 			<scope>test</scope>
 		</dependency>
-                <dependency>
-                	<groupId>edu.uci.ics.asterix</groupId>
-                	<artifactId>asterix-test-framework</artifactId>
-                	<version>0.8.1-SNAPSHOT</version>
-                	<scope>test</scope>
-                </dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-test-framework</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-app/scripts/asterix/startallncs.sh b/asterix-app/scripts/asterix/startallncs.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/startcc.sh b/asterix-app/scripts/asterix/startcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/startnc.sh b/asterix-app/scripts/asterix/startnc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/stopallncs.sh b/asterix-app/scripts/asterix/stopallncs.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/stopcc.sh b/asterix-app/scripts/asterix/stopcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/stopnc.sh b/asterix-app/scripts/asterix/stopnc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/asterix/test.properties b/asterix-app/scripts/asterix/test.properties
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/idefix/startcc.sh b/asterix-app/scripts/idefix/startcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/idefix/startnc1.sh b/asterix-app/scripts/idefix/startnc1.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/idefix/startnc2.sh b/asterix-app/scripts/idefix/startnc2.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/idefix/stopallncs.sh b/asterix-app/scripts/idefix/stopallncs.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/idefix/stopcc.sh b/asterix-app/scripts/idefix/stopcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/execute.sh b/asterix-app/scripts/rainbow/execute.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/startallncs.sh b/asterix-app/scripts/rainbow/startallncs.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/startcc.sh b/asterix-app/scripts/rainbow/startcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/startnc.sh b/asterix-app/scripts/rainbow/startnc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/stopallncs.sh b/asterix-app/scripts/rainbow/stopallncs.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/stopcc.sh b/asterix-app/scripts/rainbow/stopcc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/scripts/rainbow/stopnc.sh b/asterix-app/scripts/rainbow/stopnc.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
index e56ed92..9fcbb29 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
@@ -62,6 +62,9 @@
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactoryProvider;
 
 public class AsterixAppRuntimeContext implements IAsterixAppRuntimeContext, IAsterixPropertiesProvider {
+
+    public static final AsterixPropertiesAccessor ASTERIX_PROPERTIES_ACCESSOR = createAsterixPropertiesAccessor();
+
     private static final int METADATA_IO_DEVICE_ID = 0;
 
     private final INCApplicationContext ncApplicationContext;
@@ -84,18 +87,26 @@
     private IIOManager ioManager;
     private boolean isShuttingdown;
 
-    public AsterixAppRuntimeContext(INCApplicationContext ncApplicationContext) {
+    public AsterixAppRuntimeContext(INCApplicationContext ncApplicationContext) throws AsterixException {
         this.ncApplicationContext = ncApplicationContext;
+        compilerProperties = new AsterixCompilerProperties(ASTERIX_PROPERTIES_ACCESSOR);
+        externalProperties = new AsterixExternalProperties(ASTERIX_PROPERTIES_ACCESSOR);
+        metadataProperties = new AsterixMetadataProperties(ASTERIX_PROPERTIES_ACCESSOR);
+        storageProperties = new AsterixStorageProperties(ASTERIX_PROPERTIES_ACCESSOR);
+        txnProperties = new AsterixTransactionProperties(ASTERIX_PROPERTIES_ACCESSOR);
+    }
+
+    private static AsterixPropertiesAccessor createAsterixPropertiesAccessor() {
+        AsterixPropertiesAccessor propertiesAccessor = null;
+        try {
+            propertiesAccessor = new AsterixPropertiesAccessor();
+        } catch (AsterixException e) {
+            throw new IllegalStateException("Unable to create properties accessor");
+        }
+        return propertiesAccessor;
     }
 
     public void initialize() throws IOException, ACIDException, AsterixException {
-        AsterixPropertiesAccessor propertiesAccessor = new AsterixPropertiesAccessor();
-        compilerProperties = new AsterixCompilerProperties(propertiesAccessor);
-        externalProperties = new AsterixExternalProperties(propertiesAccessor);
-        metadataProperties = new AsterixMetadataProperties(propertiesAccessor);
-        storageProperties = new AsterixStorageProperties(propertiesAccessor);
-        txnProperties = new AsterixTransactionProperties(propertiesAccessor);
-
         Logger.getLogger("edu.uci.ics").setLevel(externalProperties.getLogLevel());
 
         fileMapManager = new AsterixFileMapManager();
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
index cb1e9ad..d83cc63 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
@@ -30,9 +30,8 @@
     }
 
     protected List<Statement.Kind> getAllowedStatements() {
-        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.DELETE, Kind.INSERT, Kind.UPDATE,
-                Kind.DML_CMD_LIST, Kind.LOAD_FROM_FILE, Kind.BEGIN_FEED,
-                Kind.CONTROL_FEED };
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.DELETE, Kind.INSERT, Kind.UPDATE, Kind.DML_CMD_LIST,
+                Kind.LOAD_FROM_FILE, Kind.BEGIN_FEED, Kind.CONTROL_FEED, Kind.SET };
         return Arrays.asList(statementsArray);
     }
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
index 1ec0937..64e5504 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -22,6 +22,8 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Random;
+import java.util.Set;
 
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -74,20 +76,29 @@
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetNodegroupCardinalityHint;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
 import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails.FeedState;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
+import edu.uci.ics.asterix.metadata.feeds.FeedUtil;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeSignature;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.asterix.result.ResultUtils;
 import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
@@ -406,10 +417,12 @@
                             .getPartitioningExprs();
                     ARecordType aRecordType = (ARecordType) itemType;
                     aRecordType.validatePartitioningExpressions(partitioningExprs);
-                    String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    Identifier ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName();
+                    String nodegroupName = ngName != null ? ngName.getValue() : configureNodegroupForDataset(dd,
+                            dataverseName, mdTxnCtx);
                     datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
                             InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
-                            ngName);
+                            nodegroupName);
                     break;
                 }
                 case EXTERNAL: {
@@ -427,14 +440,17 @@
                             .getPartitioningExprs();
                     ARecordType aRecordType = (ARecordType) itemType;
                     aRecordType.validatePartitioningExpressions(partitioningExprs);
-                    String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    Identifier ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName();
+                    String nodegroupName = ngName != null ? ngName.getValue() : configureNodegroupForDataset(dd,
+                            dataverseName, mdTxnCtx);
                     String adapter = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getAdapterFactoryClassname();
                     Map<String, String> configuration = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
                             .getConfiguration();
                     FunctionSignature signature = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getFunctionSignature();
+
                     datasetDetails = new FeedDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
                             InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
-                            ngName, adapter, configuration, signature, FeedDatasetDetails.FeedState.INACTIVE.toString());
+                            nodegroupName, adapter, configuration, signature);
                     break;
                 }
             }
@@ -524,6 +540,53 @@
         }
     }
 
+    private String configureNodegroupForDataset(DatasetDecl dd, String dataverse, MetadataTransactionContext mdTxnCtx)
+            throws AsterixException {
+        int nodegroupCardinality = -1;
+        String nodegroupName;
+        String hintValue = dd.getHints().get(DatasetNodegroupCardinalityHint.NAME);
+        if (hintValue != null) {
+            boolean valid = DatasetHints.validate(DatasetNodegroupCardinalityHint.NAME,
+                    dd.getHints().get(DatasetNodegroupCardinalityHint.NAME)).first;
+            if (!valid) {
+                throw new AsterixException("Incorrect use of hint:" + DatasetNodegroupCardinalityHint.NAME);
+            } else {
+                nodegroupCardinality = Integer.parseInt(dd.getHints().get(DatasetNodegroupCardinalityHint.NAME));
+            }
+            Set<String> nodeNames = AsterixAppContextInfo.getInstance().getMetadataProperties().getNodeNames();
+            String metadataNodeName = AsterixAppContextInfo.getInstance().getMetadataProperties().getMetadataNodeName();
+            List<String> selectedNodes = new ArrayList<String>();
+            selectedNodes.add(metadataNodeName);
+            nodeNames.remove(metadataNodeName);
+            nodegroupCardinality--;
+
+            Random random = new Random();
+            String[] nodes = nodeNames.toArray(new String[] {});
+            int[] b = new int[nodeNames.size()];
+            for (int i = 0; i < b.length; i++) {
+                b[i] = i;
+            }
+
+            for (int i = 0; i < nodegroupCardinality; i++) {
+                int selected = i + random.nextInt(nodeNames.size() - i);
+                int selNodeIndex = b[selected];
+                selectedNodes.add(nodes[selNodeIndex]);
+                int temp = b[0];
+                b[0] = b[selected];
+                b[selected] = temp;
+            }
+            nodegroupName = dataverse + ":" + dd.getName().getValue();
+            MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(nodegroupName, selectedNodes));
+            //TODO: Remove this hack. In future we would not mandate metadata node to be one of the 
+            // storage nodes. We require that currently so that ingestion node does not coincide with 
+            // the metadata node.
+            nodeNames.add(metadataNodeName);
+        } else {
+            nodegroupName = MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME;
+        }
+        return nodegroupName;
+    }
+
     private void handleCreateIndexStatement(AqlMetadataProvider metadataProvider, Statement stmt,
             IHyracksClientConnection hcc) throws Exception {
 
@@ -570,6 +633,16 @@
                 }
             }
 
+            if (ds.getDatasetType().equals(DatasetType.FEED)) {
+                FeedActivity fa = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx, dataverseName, datasetName,
+                        null);
+                boolean activeFeed = FeedUtil.isFeedActive(fa);
+                if (activeFeed) {
+                    throw new AsterixException("Feed " + datasetName + " is currently " + FeedState.ACTIVE + "."
+                            + " Operation not supported.");
+                }
+            }
+
             //#. add a new index with PendingAddOp
             Index index = new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
                     stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false,
@@ -844,6 +917,16 @@
                 }
             }
 
+            if (ds.getDatasetType().equals(DatasetType.FEED)) {
+                FeedActivity fa = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx, dataverseName, datasetName,
+                        null);
+                boolean activeFeed = FeedUtil.isFeedActive(fa);
+                if (activeFeed) {
+                    throw new AsterixException("Feed " + datasetName + " is currently " + FeedState.ACTIVE + "."
+                            + " Operation not supported.");
+                }
+            }
+
             if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
 
                 //#. prepare jobs to drop the datatset and the indexes in NC
@@ -881,6 +964,13 @@
 
             //#. finally, delete the dataset.
             MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+            // Drop the associated nodegroup
+            if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+                String nodegroup = ((InternalDatasetDetails) ds.getDatasetDetails()).getNodeGroupName();
+                if (!nodegroup.equalsIgnoreCase(MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME)) {
+                    MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, dataverseName + ":" + datasetName);
+                }
+            }
 
             MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
         } catch (Exception e) {
@@ -945,6 +1035,16 @@
                         + dataverseName);
             }
 
+            if (ds.getDatasetType().equals(DatasetType.FEED)) {
+                FeedActivity fa = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx, dataverseName, datasetName,
+                        null);
+                boolean activeFeed = FeedUtil.isFeedActive(fa);
+                if (activeFeed) {
+                    throw new AsterixException("Feed " + datasetName + " is currently " + FeedState.ACTIVE + "."
+                            + " Operation not supported.");
+                }
+            }
+
             if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
                 indexName = stmtIndexDrop.getIndexName().getValue();
                 Index index = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
@@ -1268,20 +1368,27 @@
         boolean bActiveTxn = true;
         metadataProvider.setMetadataTxnContext(mdTxnCtx);
         acquireReadLatch();
-
+        boolean readLatchAcquired = true;
         try {
             BeginFeedStatement bfs = (BeginFeedStatement) stmt;
             String dataverseName = getActiveDataverseName(bfs.getDataverseName());
 
             CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(dataverseName, bfs.getDatasetName()
-                    .getValue(), bfs.getQuery(), bfs.getVarCounter());
+                    .getValue(), bfs.getPolicy(), bfs.getQuery(), bfs.getVarCounter());
 
-            Dataset dataset;
-            dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName, bfs
-                    .getDatasetName().getValue());
+            Dataset dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(),
+                    dataverseName, bfs.getDatasetName().getValue());
             if (dataset == null) {
                 throw new AsterixException("Unknown dataset :" + bfs.getDatasetName().getValue());
             }
+
+            FeedActivity recentActivity = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx, dataverseName, bfs
+                    .getDatasetName().getValue(), null);
+            boolean isFeedActive = FeedUtil.isFeedActive(recentActivity);
+            if (isFeedActive && !bfs.isForceBegin()) {
+                throw new AsterixException("Feed " + bfs.getDatasetName().getValue()
+                        + " is currently ACTIVE. Operation not supported");
+            }
             IDatasetDetails datasetDetails = dataset.getDatasetDetails();
             if (datasetDetails.getDatasetType() != DatasetType.FEED) {
                 throw new IllegalArgumentException("Dataset " + bfs.getDatasetName().getValue()
@@ -1290,23 +1397,27 @@
             bfs.initialize(metadataProvider.getMetadataTxnContext(), dataset);
             cbfs.setQuery(bfs.getQuery());
             metadataProvider.getConfig().put(FunctionUtils.IMPORT_PRIVATE_FUNCTIONS, "" + Boolean.TRUE);
-
+            metadataProvider.getConfig().put(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY, cbfs.getPolicyName());
             JobSpecification compiled = rewriteCompileQuery(metadataProvider, bfs.getQuery(), cbfs);
-
             MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
             bActiveTxn = false;
-
-            if (compiled != null) {
-                runJob(hcc, compiled, true);
+            String waitForCompletionParam = metadataProvider.getConfig().get(BeginFeedStatement.WAIT_FOR_COMPLETION);
+            boolean waitForCompletion = waitForCompletionParam == null ? false : Boolean
+                    .valueOf(waitForCompletionParam);
+            if (waitForCompletion) {
+                releaseReadLatch();
+                readLatchAcquired = false;
             }
-
+            runJob(hcc, compiled, waitForCompletion);
         } catch (Exception e) {
             if (bActiveTxn) {
                 abort(e, e, mdTxnCtx);
             }
             throw e;
         } finally {
-            releaseReadLatch();
+            if (readLatchAcquired) {
+                releaseReadLatch();
+            }
         }
     }
 
@@ -1320,9 +1431,32 @@
         try {
             ControlFeedStatement cfs = (ControlFeedStatement) stmt;
             String dataverseName = getActiveDataverseName(cfs.getDataverseName());
+
+            String datasetName = cfs.getDatasetName().getValue();
+            Dataset dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(),
+                    dataverseName, cfs.getDatasetName().getValue());
+            if (dataset == null) {
+                throw new AsterixException("Unknown dataset :" + cfs.getDatasetName().getValue() + " in dataverse "
+                        + dataverseName);
+            }
+            if (!dataset.getDatasetType().equals(DatasetType.FEED)) {
+                throw new AsterixException("Statement not applicable. Dataset " + cfs.getDatasetName().getValue()
+                        + " is not a " + DatasetType.FEED);
+            }
+
+            FeedActivity feedActivity = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx, dataverseName,
+                    datasetName, FeedActivityType.FEED_BEGIN, FeedActivityType.FEED_RESUME);
+
+            boolean isFeedActive = FeedUtil.isFeedActive(feedActivity);
+            if (!isFeedActive) {
+                throw new AsterixException("Feed " + cfs.getDatasetName().getValue()
+                        + " is currently INACTIVE. Operation not supported");
+            }
+
             CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(),
                     dataverseName, cfs.getDatasetName().getValue(), cfs.getAlterAdapterConfParams());
-            JobSpecification jobSpec = FeedOperations.buildControlFeedJobSpec(clcfs, metadataProvider);
+
+            JobSpecification jobSpec = FeedOperations.buildControlFeedJobSpec(clcfs, metadataProvider, feedActivity);
 
             MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
             bActiveTxn = false;
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
index c7ad8bd..503f565 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
@@ -14,20 +14,19 @@
  */
 package edu.uci.ics.asterix.file;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.external.feed.lifecycle.AlterFeedMessage;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedMessage;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage.MessageType;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
 import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.feeds.AlterFeedMessage;
+import edu.uci.ics.asterix.metadata.feeds.FeedMessage;
+import edu.uci.ics.asterix.metadata.feeds.IFeedMessage;
+import edu.uci.ics.asterix.metadata.feeds.IFeedMessage.MessageType;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledControlFeedStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
@@ -58,11 +57,12 @@
      * @throws AlgebricksException
      */
     public static JobSpecification buildControlFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
+            AqlMetadataProvider metadataProvider, FeedActivity feedActivity) throws AsterixException,
+            AlgebricksException {
         switch (controlFeedStatement.getOperationType()) {
             case ALTER:
             case END: {
-                return createSendMessageToFeedJobSpec(controlFeedStatement, metadataProvider);
+                return createSendMessageToFeedJobSpec(controlFeedStatement, metadataProvider, feedActivity);
             }
             default: {
                 throw new AsterixException("Unknown Operation Type: " + controlFeedStatement.getOperationType());
@@ -71,15 +71,13 @@
         }
     }
 
+  
+
     private static JobSpecification createSendMessageToFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlMetadataProvider metadataProvider) throws AsterixException {
+            AqlMetadataProvider metadataProvider, FeedActivity feedActivity) throws AsterixException {
         String dataverseName = controlFeedStatement.getDataverseName() == null ? metadataProvider
                 .getDefaultDataverseName() : controlFeedStatement.getDataverseName();
         String datasetName = controlFeedStatement.getDatasetName();
-        String datasetPath = dataverseName + File.separator + datasetName;
-
-        LOGGER.info(" DATASETPATH: " + datasetPath);
-
         Dataset dataset;
         try {
             dataset = metadataProvider.findDataset(dataverseName, datasetName);
@@ -97,20 +95,20 @@
         IOperatorDescriptor feedMessenger;
         AlgebricksPartitionConstraint messengerPc;
 
-        List<IFeedMessage> feedMessages = new ArrayList<IFeedMessage>();
+        IFeedMessage feedMessage = null;
         switch (controlFeedStatement.getOperationType()) {
             case END:
-                feedMessages.add(new FeedMessage(MessageType.STOP));
+                feedMessage = new FeedMessage(MessageType.END);
                 break;
             case ALTER:
-                feedMessages.add(new AlterFeedMessage(controlFeedStatement.getProperties()));
+                feedMessage = new AlterFeedMessage(controlFeedStatement.getProperties());
                 break;
         }
 
         try {
             Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = metadataProvider.buildFeedMessengerRuntime(
                     metadataProvider, spec, (FeedDatasetDetails) dataset.getDatasetDetails(), dataverseName,
-                    datasetName, feedMessages);
+                    datasetName, feedMessage, feedActivity);
             feedMessenger = p.first;
             messengerPc = p.second;
         } catch (AlgebricksException e) {
@@ -121,9 +119,7 @@
 
         NullSinkOperatorDescriptor nullSink = new NullSinkOperatorDescriptor(spec);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, nullSink, messengerPc);
-
         spec.connect(new OneToOneConnectorDescriptor(spec), feedMessenger, 0, nullSink, 0);
-
         spec.addRoot(nullSink);
         return spec;
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
index dc201dd..73eeb7e 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
@@ -56,19 +56,27 @@
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("Starting Asterix cluster controller");
         }
+
         appCtx.setThreadFactory(AsterixThreadFactory.INSTANCE);
-        AsterixAppContextInfo.initialize(appCtx);
+        AsterixAppContextInfo.initialize(appCtx, getNewHyracksClientConnection());
+
         proxy = AsterixStateProxy.registerRemoteObject();
         appCtx.setDistributedState(proxy);
 
         AsterixMetadataProperties metadataProperties = AsterixAppContextInfo.getInstance().getMetadataProperties();
         MetadataManager.INSTANCE = new MetadataManager(proxy, metadataProperties);
 
+        AsterixAppContextInfo.getInstance().getCCApplicationContext()
+                .addJobLifecycleListener(FeedLifecycleListener.INSTANCE);
+
         AsterixExternalProperties externalProperties = AsterixAppContextInfo.getInstance().getExternalProperties();
         setupWebServer(externalProperties);
         webServer.start();
+
         setupJSONAPIServer(externalProperties);
         jsonAPIServer.start();
+        ExternalLibraryBootstrap.setUpExternaLibraries(false);
+
         ccAppCtx.addClusterLifecycleListener(ClusterLifecycleListener.INSTANCE);
     }
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
index a864e61..6461b0c 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
@@ -14,22 +14,53 @@
  */
 package edu.uci.ics.asterix.hyracks.bootstrap;
 
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.LinkedBlockingQueue;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWorkResponse;
+import edu.uci.ics.asterix.metadata.cluster.ClusterManager;
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse;
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse.Status;
+import edu.uci.ics.asterix.metadata.cluster.RemoveNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.RemoveNodeWorkResponse;
 import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.hyracks.api.application.IClusterLifecycleListener;
 
 public class ClusterLifecycleListener implements IClusterLifecycleListener {
 
+    private static final Logger LOGGER = Logger.getLogger(ClusterLifecycleListener.class.getName());
+
+    private static final LinkedBlockingQueue<Set<IClusterManagementWork>> workRequestQueue = new LinkedBlockingQueue<Set<IClusterManagementWork>>();
+
+    private static ClusterWorkExecutor eventHandler = new ClusterWorkExecutor(workRequestQueue);
+
+    private static List<IClusterManagementWorkResponse> pendingWorkResponses = new ArrayList<IClusterManagementWorkResponse>();
+
     public static ClusterLifecycleListener INSTANCE = new ClusterLifecycleListener();
 
     private ClusterLifecycleListener() {
+        Thread t = new Thread(eventHandler);
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Starting cluster event handler");
+        }
+        t.start();
     }
 
-    private static final Logger LOGGER = Logger.getLogger(ClusterLifecycleListener.class.getName());
+    public enum ClusterEventType {
+        NODE_JOIN,
+        NODE_FAILURE
+    }
 
     @Override
     public void notifyNodeJoin(String nodeId, Map<String, String> ncConfiguration) {
@@ -37,6 +68,21 @@
             LOGGER.info("NC: " + nodeId + " joined");
         }
         AsterixClusterProperties.INSTANCE.addNCConfiguration(nodeId, ncConfiguration);
+        Set<String> nodeAddition = new HashSet<String>();
+        nodeAddition.add(nodeId);
+        updateProgress(ClusterEventType.NODE_JOIN, nodeAddition);
+        Set<IClusterEventsSubscriber> subscribers = ClusterManager.INSTANCE.getRegisteredClusterEventSubscribers();
+        Set<IClusterManagementWork> work = new HashSet<IClusterManagementWork>();
+        for (IClusterEventsSubscriber sub : subscribers) {
+            Set<IClusterManagementWork> workRequest = sub.notifyNodeJoin(nodeId);
+            if (workRequest != null && !workRequest.isEmpty()) {
+                work.addAll(workRequest);
+            }
+        }
+        if (!work.isEmpty()) {
+            executeWorkSet(work);
+        }
+
     }
 
     public void notifyNodeFailure(Set<String> deadNodeIds) {
@@ -46,7 +92,123 @@
             }
             AsterixClusterProperties.INSTANCE.removeNCConfiguration(deadNode);
         }
-
+        updateProgress(ClusterEventType.NODE_FAILURE, deadNodeIds);
+        Set<IClusterEventsSubscriber> subscribers = ClusterManager.INSTANCE.getRegisteredClusterEventSubscribers();
+        Set<IClusterManagementWork> work = new HashSet<IClusterManagementWork>();
+        for (IClusterEventsSubscriber sub : subscribers) {
+            Set<IClusterManagementWork> workRequest = sub.notifyNodeFailure(deadNodeIds);
+            if (workRequest != null && !workRequest.isEmpty()) {
+                work.addAll(workRequest);
+            }
+        }
+        if (!work.isEmpty()) {
+            executeWorkSet(work);
+        }
     }
 
+    private void submitWork(Set<IClusterManagementWork> work) {
+        try {
+            workRequestQueue.put(work);
+        } catch (InterruptedException e) {
+            if (LOGGER.isLoggable(Level.WARNING)) {
+                LOGGER.warning("Interrupted :" + e.getMessage());
+            }
+        }
+    }
+
+    private void updateProgress(ClusterEventType eventType, Set<String> nodeIds) {
+        List<IClusterManagementWorkResponse> completedResponses = new ArrayList<IClusterManagementWorkResponse>();
+        boolean isComplete = false;
+        for (IClusterManagementWorkResponse resp : pendingWorkResponses) {
+            switch (eventType) {
+                case NODE_FAILURE:
+                    isComplete = ((RemoveNodeWorkResponse) resp).updateProgress(nodeIds);
+                    if (isComplete) {
+                        resp.setStatus(Status.SUCCESS);
+                        resp.getWork().getSourceSubscriber().notifyRequestCompletion(resp);
+                        completedResponses.add(resp);
+                    }
+                    break;
+
+                case NODE_JOIN:
+                    isComplete = ((AddNodeWorkResponse) resp).updateProgress(nodeIds.iterator().next());
+                    if (isComplete) {
+                        resp.setStatus(Status.SUCCESS);
+                        resp.getWork().getSourceSubscriber().notifyRequestCompletion(resp);
+                        completedResponses.add(resp);
+                    }
+                    break;
+            }
+        }
+        pendingWorkResponses.removeAll(completedResponses);
+    }
+
+    private void executeWorkSet(Set<IClusterManagementWork> workSet) {
+        int nodesToAdd = 0;
+        Set<String> nodesToRemove = new HashSet<String>();
+        Set<AddNodeWork> nodeAdditionRequests = new HashSet<AddNodeWork>();
+        Set<IClusterManagementWork> nodeRemovalRequests = new HashSet<IClusterManagementWork>();
+        for (IClusterManagementWork w : workSet) {
+            switch (w.getClusterManagementWorkType()) {
+                case ADD_NODE:
+                    if (nodesToAdd < ((AddNodeWork) w).getNumberOfNodes()) {
+                        nodesToAdd = ((AddNodeWork) w).getNumberOfNodes();
+                    }
+                    nodeAdditionRequests.add((AddNodeWork) w);
+                    break;
+                case REMOVE_NODE:
+                    nodesToRemove.addAll(((RemoveNodeWork) w).getNodesToBeRemoved());
+                    nodeRemovalRequests.add(w);
+                    RemoveNodeWorkResponse response = new RemoveNodeWorkResponse((RemoveNodeWork) w, Status.IN_PROGRESS);
+                    pendingWorkResponses.add(response);
+                    break;
+            }
+        }
+
+        List<String> addedNodes = new ArrayList<String>();
+        String asterixInstanceName = AsterixClusterProperties.INSTANCE.getCluster().getInstanceName();
+        for (int i = 0; i < nodesToAdd; i++) {
+            Node node = AsterixClusterProperties.INSTANCE.getAvailableSubstitutionNode();
+            if (node != null) {
+                try {
+                    ClusterManager.INSTANCE.addNode(node);
+                    addedNodes.add(asterixInstanceName + "_" + node.getId());
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("Added NC at:" + node.getId());
+                    }
+                } catch (AsterixException e) {
+                    if (LOGGER.isLoggable(Level.WARNING)) {
+                        LOGGER.warning("Unable to add NC at:" + node.getId());
+                    }
+                    e.printStackTrace();
+                }
+            } else {
+                if (LOGGER.isLoggable(Level.WARNING)) {
+                    LOGGER.warning("Unable to add NC: no more available nodes");
+                }
+
+            }
+        }
+
+        for (AddNodeWork w : nodeAdditionRequests) {
+            int n = w.getNumberOfNodes();
+            List<String> nodesToBeAddedForWork = new ArrayList<String>();
+            for (int i = 0; i < n && i < addedNodes.size(); i++) {
+                nodesToBeAddedForWork.add(addedNodes.get(i));
+            }
+            if (nodesToBeAddedForWork.isEmpty()) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Unable to satisfy request by " + w);
+                }
+                AddNodeWorkResponse response = new AddNodeWorkResponse(w, nodesToBeAddedForWork);
+                response.setStatus(Status.FAILURE);
+                w.getSourceSubscriber().notifyRequestCompletion(response);
+
+            } else {
+                AddNodeWorkResponse response = new AddNodeWorkResponse(w, nodesToBeAddedForWork);
+                pendingWorkResponses.add(response);
+            }
+        }
+
+    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java
new file mode 100644
index 0000000..a6c1f8b
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWorkResponse;
+import edu.uci.ics.asterix.metadata.cluster.ClusterManager;
+import edu.uci.ics.asterix.metadata.cluster.RemoveNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse.Status;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
+
+public class ClusterWorkExecutor implements Runnable {
+
+    private static final Logger LOGGER = Logger.getLogger(ClusterWorkExecutor.class.getName());
+
+    private final LinkedBlockingQueue<Set<IClusterManagementWork>> inbox;
+
+    public ClusterWorkExecutor(LinkedBlockingQueue<Set<IClusterManagementWork>> inbox) {
+        this.inbox = inbox;
+    }
+    
+   
+    @Override
+    public void run() {
+        while (true) {
+            try {
+                Set<IClusterManagementWork> workSet = inbox.take();
+                int nodesToAdd = 0;
+                Set<String> nodesToRemove = new HashSet<String>();
+                Set<IClusterManagementWork> nodeAdditionRequests = new HashSet<IClusterManagementWork>();
+                Set<IClusterManagementWork> nodeRemovalRequests = new HashSet<IClusterManagementWork>();
+                for (IClusterManagementWork w : workSet) {
+                    switch (w.getClusterManagementWorkType()) {
+                        case ADD_NODE:
+                            if (nodesToAdd < ((AddNodeWork) w).getNumberOfNodes()) {
+                                nodesToAdd = ((AddNodeWork) w).getNumberOfNodes();
+                            }
+                            nodeAdditionRequests.add(w);
+                            break;
+                        case REMOVE_NODE:
+                            nodesToRemove.addAll(((RemoveNodeWork) w).getNodesToBeRemoved());
+                            nodeRemovalRequests.add(w);
+                            break;
+                    }
+                }
+
+                Set<Node> addedNodes = new HashSet<Node>();
+                for (int i = 0; i < nodesToAdd; i++) {
+                    Node node = AsterixClusterProperties.INSTANCE.getAvailableSubstitutionNode();
+                    if (node != null) {
+                        try {
+                            ClusterManager.INSTANCE.addNode(node);
+                            addedNodes.add(node);
+                            if (LOGGER.isLoggable(Level.INFO)) {
+                                LOGGER.info("Added NC at:" + node.getId());
+                            }
+                        } catch (AsterixException e) {
+                            if (LOGGER.isLoggable(Level.WARNING)) {
+                                LOGGER.warning("Unable to add NC at:" + node.getId());
+                            }
+                            e.printStackTrace();
+                        }
+                    } else {
+                        if (LOGGER.isLoggable(Level.WARNING)) {
+                            LOGGER.warning("Unable to add NC: no more available nodes");
+                        }
+                    }
+                }
+                
+
+            } catch (InterruptedException e) {
+                if (LOGGER.isLoggable(Level.SEVERE)) {
+                    LOGGER.severe("interruped" + e.getMessage());
+                }
+                throw new IllegalStateException(e);
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.SEVERE)) {
+                    LOGGER.severe("Unexpected exception in handling cluster event" + e.getMessage());
+                }
+            }
+
+        }
+    }
+
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ExternalLibraryBootstrap.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ExternalLibraryBootstrap.java
new file mode 100755
index 0000000..ecf1a14e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ExternalLibraryBootstrap.java
@@ -0,0 +1,300 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.rmi.RemoteException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.external.library.ExternalLibraryManager;
+import edu.uci.ics.asterix.external.library.Function;
+import edu.uci.ics.asterix.external.library.Functions;
+import edu.uci.ics.asterix.external.library.Library;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat;
+
+public class ExternalLibraryBootstrap {
+
+    public static void setUpExternaLibraries(boolean isMetadataNode) throws Exception {
+
+        Map<String, List<String>> uninstalledLibs = null;
+        if (isMetadataNode) {
+            uninstalledLibs = uninstallLibraries();
+        }
+
+        File installLibDir = getLibraryInstallDir();
+        if (installLibDir.exists()) {
+            for (String dataverse : installLibDir.list()) {
+                File dataverseDir = new File(installLibDir, dataverse);
+                String[] libraries = dataverseDir.list();
+                for (String library : libraries) {
+                    registerLibrary(dataverse, library, isMetadataNode, installLibDir);
+                    if (isMetadataNode) {
+                        File libraryDir = new File(installLibDir.getAbsolutePath() + File.separator + dataverse
+                                + File.separator + library);
+                        installLibraryIfNeeded(dataverse, libraryDir, uninstalledLibs);
+                    }
+                }
+            }
+        }
+    }
+
+    private static Map<String, List<String>> uninstallLibraries() throws Exception {
+        Map<String, List<String>> uninstalledLibs = new HashMap<String, List<String>>();
+        File uninstallLibDir = getLibraryUninstallDir();
+        String[] uninstallLibNames;
+        if (uninstallLibDir.exists()) {
+            uninstallLibNames = uninstallLibDir.list();
+            for (String uninstallLibName : uninstallLibNames) {
+                String[] components = uninstallLibName.split("\\.");
+                String dataverse = components[0];
+                String libName = components[1];
+                uninstallLibrary(dataverse, libName);
+                new File(uninstallLibDir, uninstallLibName).delete();
+                List<String> uinstalledLibsInDv = uninstalledLibs.get(dataverse);
+                if (uinstalledLibsInDv == null) {
+                    uinstalledLibsInDv = new ArrayList<String>();
+                    uninstalledLibs.put(dataverse, uinstalledLibsInDv);
+                }
+                uinstalledLibsInDv.add(libName);
+            }
+        }
+        return uninstalledLibs;
+    }
+
+    private static boolean uninstallLibrary(String dataverse, String libraryName) throws AsterixException,
+            RemoteException, ACIDException {
+        MetadataTransactionContext mdTxnCtx = null;
+        try {
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverse);
+            if (dv == null) {
+                return false;
+            }
+
+            edu.uci.ics.asterix.metadata.entities.Library library = MetadataManager.INSTANCE.getLibrary(mdTxnCtx,
+                    dataverse, libraryName);
+            if (library == null) {
+                return false;
+            }
+
+            List<edu.uci.ics.asterix.metadata.entities.Function> functions = MetadataManager.INSTANCE
+                    .getDataverseFunctions(mdTxnCtx, dataverse);
+            for (edu.uci.ics.asterix.metadata.entities.Function function : functions) {
+                if (function.getName().startsWith(libraryName + ":")) {
+                    MetadataManager.INSTANCE.dropFunction(mdTxnCtx, new FunctionSignature(dataverse,
+                            function.getName(), function.getArity()));
+                }
+            }
+
+            MetadataManager.INSTANCE.dropLibrary(mdTxnCtx, dataverse, libraryName);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AsterixException(e);
+        }
+        return true;
+    }
+
+    // Each element of a library is installed as part of a transaction. Any
+    // failure in installing an element does not effect installation of other
+    // libraries
+    private static void installLibraryIfNeeded(String dataverse, final File libraryDir,
+            Map<String, List<String>> uninstalledLibs) throws Exception {
+
+        String libraryName = libraryDir.getName();
+        List<String> uninstalledLibsInDv = uninstalledLibs.get(dataverse);
+        boolean wasUninstalled = uninstalledLibsInDv != null && uninstalledLibsInDv.contains(libraryName);
+
+        MetadataTransactionContext mdTxnCtx = null;
+        try {
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            edu.uci.ics.asterix.metadata.entities.Library libraryInMetadata = MetadataManager.INSTANCE.getLibrary(
+                    mdTxnCtx, dataverse, libraryName);
+            if (libraryInMetadata != null && !wasUninstalled) {
+                return;
+            }
+
+            String[] libraryDescriptors = libraryDir.list(new FilenameFilter() {
+                @Override
+                public boolean accept(File dir, String name) {
+                    return name.endsWith(".xml");
+                }
+            });
+
+            Library library = getLibrary(new File(libraryDir + File.separator + libraryDescriptors[0]));
+
+            if (libraryDescriptors.length == 0) {
+                throw new Exception("No library descriptors defined");
+            } else if (libraryDescriptors.length > 1) {
+                throw new Exception("More than 1 library descriptors defined");
+            }
+
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverse);
+            if (dv == null) {
+                MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dataverse,
+                        NonTaggedDataFormat.NON_TAGGED_DATA_FORMAT, IMetadataEntity.PENDING_NO_OP));
+            }
+            for (Function function : library.getFunctions().getFunction()) {
+                String[] fargs = function.getArguments().trim().split(",");
+                List<String> args = new ArrayList<String>();
+                for (String arg : fargs) {
+                    args.add(arg);
+                }
+                edu.uci.ics.asterix.metadata.entities.Function f = new edu.uci.ics.asterix.metadata.entities.Function(
+                        dataverse, libraryName + "#" + function.getName(), args.size(), args, function.getReturnType(),
+                        function.getDefinition(), library.getLanguage(), function.getFunctionType());
+                MetadataManager.INSTANCE.addFunction(mdTxnCtx, f);
+            }
+
+            MetadataManager.INSTANCE.addLibrary(mdTxnCtx, new edu.uci.ics.asterix.metadata.entities.Library(dataverse,
+                    libraryName));
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            e.printStackTrace();
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+        }
+    }
+
+    private static void registerLibrary(String dataverse, String libraryName, boolean isMetadataNode, File installLibDir)
+            throws Exception {
+        ClassLoader classLoader = getLibraryClassLoader(dataverse, libraryName);
+        ExternalLibraryManager.registerLibraryClassLoader(dataverse, libraryName, classLoader);
+    }
+
+    private static Library getLibrary(File libraryXMLPath) throws Exception {
+        JAXBContext configCtx = JAXBContext.newInstance(Library.class);
+        Unmarshaller unmarshaller = configCtx.createUnmarshaller();
+        Library library = (Library) unmarshaller.unmarshal(libraryXMLPath);
+        return library;
+    }
+
+    private static ClassLoader getLibraryClassLoader(String dataverse, String libraryName) throws Exception {
+        System.out.println(" installing lirbary " + libraryName + " in dataverse " + dataverse);
+        File installDir = getLibraryInstallDir();
+        System.out.println(" install directory " + installDir.getAbsolutePath());
+
+        File libDir = new File(installDir.getAbsolutePath() + File.separator + dataverse + File.separator + libraryName);
+        FilenameFilter jarFileFilter = new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                return name.endsWith(".jar");
+            }
+        };
+
+        String[] jarsInLibDir = libDir.list(jarFileFilter);
+        System.out.println(" jars in lib dir " + jarsInLibDir);
+
+        if (jarsInLibDir.length > 1) {
+            throw new Exception("Incorrect library structure: found multiple library jars");
+        }
+        if (jarsInLibDir.length < 0) {
+            throw new Exception("Incorrect library structure: could not find library jar");
+        }
+
+        File libJar = new File(libDir, jarsInLibDir[0]);
+        File libDependencyDir = new File(libDir.getAbsolutePath() + File.separator + "lib");
+        int numDependencies = 1;
+        String[] libraryDependencies = null;
+        if (libDependencyDir.exists()) {
+            libraryDependencies = libDependencyDir.list(jarFileFilter);
+            numDependencies += libraryDependencies.length;
+        }
+
+        ClassLoader parentClassLoader = ExternalLibraryBootstrap.class.getClassLoader();
+        URL[] urls = new URL[numDependencies];
+        int count = 0;
+        urls[count++] = libJar.toURL();
+
+        if (libraryDependencies != null && libraryDependencies.length > 0) {
+            for (String dependency : libraryDependencies) {
+                File file = new File(libDependencyDir + File.separator + dependency);
+                urls[count++] = file.toURL();
+            }
+        }
+        ClassLoader classLoader = new URLClassLoader(urls, parentClassLoader);
+        return classLoader;
+    }
+
+    private static File getLibraryInstallDir() {
+        String workingDir = System.getProperty("user.dir");
+        return new File(workingDir + File.separator + "library");
+    }
+
+    private static File getLibraryUninstallDir() {
+        String workingDir = System.getProperty("user.dir");
+        return new File(workingDir + File.separator + "uninstall");
+    }
+
+}
+
+class ExternalLibrary {
+
+    private final String dataverse;
+    private final String name;
+    private final String language;
+    private final Functions functions;
+
+    public ExternalLibrary(String dataverse, String name, String language, Functions functions) {
+        this.dataverse = dataverse;
+        this.name = name;
+        this.language = language;
+        this.functions = functions;
+    }
+
+    public String toString() {
+        StringBuilder builder = new StringBuilder("");
+        builder.append("Library");
+        builder.append("\n");
+        builder.append("Functions");
+        builder.append("\n");
+        for (Function function : functions.getFunction()) {
+            builder.append(function);
+            builder.append("\n");
+        }
+        return new String(builder);
+    }
+
+    public String getDataverse() {
+        return dataverse;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getLanguage() {
+        return language;
+    }
+
+    public Functions getFunctions() {
+        return functions;
+    }
+
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedLifecycleListener.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedLifecycleListener.java
new file mode 100644
index 0000000..9d5687f
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedLifecycleListener.java
@@ -0,0 +1,891 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.io.PrintWriter;
+import java.io.Serializable;
+import java.rmi.RemoteException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
+import edu.uci.ics.asterix.api.common.SessionConfig;
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
+import edu.uci.ics.asterix.aql.expression.ControlFeedStatement;
+import edu.uci.ics.asterix.aql.expression.ControlFeedStatement.OperationType;
+import edu.uci.ics.asterix.aql.expression.DataverseDecl;
+import edu.uci.ics.asterix.aql.expression.Identifier;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.hyracks.bootstrap.FeedLifecycleListener.FeedFailure.FailureType;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.ClusterManager;
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
+import edu.uci.ics.asterix.metadata.feeds.FeedIntakeOperatorDescriptor;
+import edu.uci.ics.asterix.metadata.feeds.FeedPolicyAccessor;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties.State;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.AssignRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.EmptyTupleSourceRuntimeFactory;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.OperatorDescriptorId;
+import edu.uci.ics.hyracks.api.exceptions.HyracksException;
+import edu.uci.ics.hyracks.api.job.IActivityClusterGraphGeneratorFactory;
+import edu.uci.ics.hyracks.api.job.IJobLifecycleListener;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.api.job.JobInfo;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.api.job.JobStatus;
+import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.LSMTreeIndexInsertUpdateDeleteOperatorDescriptor;
+
+public class FeedLifecycleListener implements IJobLifecycleListener, IClusterEventsSubscriber, Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger LOGGER = Logger.getLogger(FeedLifecycleListener.class.getName());
+
+    public static FeedLifecycleListener INSTANCE = new FeedLifecycleListener();
+
+    private LinkedBlockingQueue<Message> jobEventInbox;
+    private LinkedBlockingQueue<IClusterManagementWorkResponse> responseInbox;
+    private Map<FeedInfo, List<String>> dependentFeeds = new HashMap<FeedInfo, List<String>>();
+
+    private State state;
+
+    private FeedLifecycleListener() {
+        jobEventInbox = new LinkedBlockingQueue<Message>();
+        feedJobNotificationHandler = new FeedJobNotificationHandler(jobEventInbox);
+        responseInbox = new LinkedBlockingQueue<IClusterManagementWorkResponse>();
+        feedWorkRequestResponseHandler = new FeedWorkRequestResponseHandler(responseInbox);
+
+        new Thread(feedJobNotificationHandler).start();
+        new Thread(feedWorkRequestResponseHandler).start();
+        ClusterManager.INSTANCE.registerSubscriber(this);
+        state = AsterixClusterProperties.INSTANCE.getState();
+    }
+
+    private final FeedJobNotificationHandler feedJobNotificationHandler;
+    private final FeedWorkRequestResponseHandler feedWorkRequestResponseHandler;
+
+    @Override
+    public void notifyJobStart(JobId jobId) throws HyracksException {
+        if (feedJobNotificationHandler.isRegisteredFeed(jobId)) {
+            jobEventInbox.add(new Message(jobId, Message.MessageKind.JOB_START));
+        }
+    }
+
+    @Override
+    public void notifyJobFinish(JobId jobId) throws HyracksException {
+        if (feedJobNotificationHandler.isRegisteredFeed(jobId)) {
+            jobEventInbox.add(new Message(jobId, Message.MessageKind.JOB_FINISH));
+        }
+    }
+
+    @Override
+    public void notifyJobCreation(JobId jobId, IActivityClusterGraphGeneratorFactory acggf) throws HyracksException {
+
+        JobSpecification spec = acggf.getJobSpecification();
+        boolean feedIngestionJob = false;
+        FeedId feedId = null;
+        Map<String, String> feedPolicy = null;
+        for (IOperatorDescriptor opDesc : spec.getOperatorMap().values()) {
+            if (!(opDesc instanceof FeedIntakeOperatorDescriptor)) {
+                continue;
+            }
+            feedId = ((FeedIntakeOperatorDescriptor) opDesc).getFeedId();
+            feedPolicy = ((FeedIntakeOperatorDescriptor) opDesc).getFeedPolicy();
+            feedIngestionJob = true;
+            break;
+        }
+        if (feedIngestionJob) {
+            feedJobNotificationHandler.registerFeed(feedId, jobId, spec, feedPolicy);
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Registered feed: " + feedId + " ingestion policy "
+                        + feedPolicy.get(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY));
+            }
+        }
+
+    }
+
+    private static class Message {
+        public JobId jobId;
+
+        public enum MessageKind {
+            JOB_START,
+            JOB_FINISH
+        }
+
+        public MessageKind messageKind;
+
+        public Message(JobId jobId, MessageKind msgKind) {
+            this.jobId = jobId;
+            this.messageKind = msgKind;
+        }
+    }
+
+    public static class FeedFailureReport {
+        public Map<FeedInfo, List<FeedFailure>> failures = new HashMap<FeedInfo, List<FeedFailure>>();
+
+        @Override
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            for (Map.Entry<FeedLifecycleListener.FeedInfo, List<FeedLifecycleListener.FeedFailure>> entry : failures
+                    .entrySet()) {
+                builder.append(entry.getKey() + " -> failures");
+                for (FeedFailure failure : entry.getValue()) {
+                    builder.append("failure -> " + failure);
+                }
+            }
+            return builder.toString();
+        }
+    }
+
+    private static class FeedJobNotificationHandler implements Runnable, Serializable {
+
+        private static final long serialVersionUID = 1L;
+        private LinkedBlockingQueue<Message> inbox;
+        private Map<JobId, FeedInfo> registeredFeeds = new HashMap<JobId, FeedInfo>();
+
+        public FeedJobNotificationHandler(LinkedBlockingQueue<Message> inbox) {
+            this.inbox = inbox;
+        }
+
+        public boolean isRegisteredFeed(JobId jobId) {
+            return registeredFeeds.containsKey(jobId);
+        }
+
+        public void registerFeed(FeedId feedId, JobId jobId, JobSpecification jobSpec, Map<String, String> feedPolicy) {
+            if (registeredFeeds.containsKey(jobId)) {
+                throw new IllegalStateException(" Feed already registered ");
+            }
+            registeredFeeds.put(jobId, new FeedInfo(feedId, jobSpec, feedPolicy));
+        }
+
+        @Override
+        public void run() {
+            Message mesg;
+            while (true) {
+                try {
+                    mesg = inbox.take();
+                    FeedInfo feedInfo = registeredFeeds.get(mesg.jobId);
+                    switch (mesg.messageKind) {
+                        case JOB_START:
+                            handleJobStartMessage(feedInfo, mesg);
+                            break;
+                        case JOB_FINISH:
+                            handleJobFinishMessage(feedInfo, mesg);
+                            break;
+                    }
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+
+            }
+        }
+
+        private void handleJobStartMessage(FeedInfo feedInfo, Message message) {
+
+            JobSpecification jobSpec = feedInfo.jobSpec;
+
+            List<OperatorDescriptorId> ingestOperatorIds = new ArrayList<OperatorDescriptorId>();
+            List<OperatorDescriptorId> computeOperatorIds = new ArrayList<OperatorDescriptorId>();
+            List<OperatorDescriptorId> storageOperatorIds = new ArrayList<OperatorDescriptorId>();
+
+            Map<OperatorDescriptorId, IOperatorDescriptor> operators = jobSpec.getOperatorMap();
+            for (Entry<OperatorDescriptorId, IOperatorDescriptor> entry : operators.entrySet()) {
+                if (entry.getValue() instanceof AlgebricksMetaOperatorDescriptor) {
+                    AlgebricksMetaOperatorDescriptor op = ((AlgebricksMetaOperatorDescriptor) entry.getValue());
+                    IPushRuntimeFactory[] runtimeFactories = op.getPipeline().getRuntimeFactories();
+                    for (IPushRuntimeFactory rf : runtimeFactories) {
+                        if (rf instanceof EmptyTupleSourceRuntimeFactory) {
+                            ingestOperatorIds.add(entry.getKey());
+                        } else if (rf instanceof AssignRuntimeFactory) {
+                            computeOperatorIds.add(entry.getKey());
+                        }
+                    }
+                } else if (entry.getValue() instanceof LSMTreeIndexInsertUpdateDeleteOperatorDescriptor) {
+                    storageOperatorIds.add(entry.getKey());
+                }
+            }
+
+            try {
+                IHyracksClientConnection hcc = AsterixAppContextInfo.getInstance().getHcc();
+                JobInfo info = hcc.getJobInfo(message.jobId);
+                feedInfo.jobInfo = info;
+                Map<String, String> feedActivityDetails = new HashMap<String, String>();
+                StringBuilder ingestLocs = new StringBuilder();
+                for (OperatorDescriptorId ingestOpId : ingestOperatorIds) {
+                    feedInfo.ingestLocations.addAll(info.getOperatorLocations().get(ingestOpId));
+                }
+                StringBuilder computeLocs = new StringBuilder();
+                for (OperatorDescriptorId computeOpId : computeOperatorIds) {
+                    List<String> locations = info.getOperatorLocations().get(computeOpId);
+                    if (locations != null) {
+                        feedInfo.computeLocations.addAll(locations);
+                    } else {
+                        feedInfo.computeLocations.addAll(feedInfo.ingestLocations);
+                    }
+                }
+                StringBuilder storageLocs = new StringBuilder();
+                for (OperatorDescriptorId storageOpId : storageOperatorIds) {
+                    feedInfo.storageLocations.addAll(info.getOperatorLocations().get(storageOpId));
+                }
+
+                for (String ingestLoc : feedInfo.ingestLocations) {
+                    ingestLocs.append(ingestLoc);
+                    ingestLocs.append(",");
+                }
+                for (String computeLoc : feedInfo.computeLocations) {
+                    computeLocs.append(computeLoc);
+                    computeLocs.append(",");
+                }
+                for (String storageLoc : feedInfo.storageLocations) {
+                    storageLocs.append(storageLoc);
+                    storageLocs.append(",");
+                }
+
+                feedActivityDetails.put(FeedActivity.FeedActivityDetails.INGEST_LOCATIONS, ingestLocs.toString());
+                feedActivityDetails.put(FeedActivity.FeedActivityDetails.COMPUTE_LOCATIONS, computeLocs.toString());
+                feedActivityDetails.put(FeedActivity.FeedActivityDetails.STORAGE_LOCATIONS, storageLocs.toString());
+                feedActivityDetails.put(FeedActivity.FeedActivityDetails.FEED_POLICY_NAME,
+                        feedInfo.feedPolicy.get(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY));
+
+                MetadataManager.INSTANCE.acquireWriteLatch();
+                MetadataTransactionContext mdTxnCtx = null;
+                try {
+                    mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                    FeedActivity fa = MetadataManager.INSTANCE.getRecentFeedActivity(mdTxnCtx,
+                            feedInfo.feedId.getDataverse(), feedInfo.feedId.getDataset(), null);
+                    FeedActivityType nextState = fa != null
+                            && fa.getActivityType().equals(FeedActivityType.FEED_RECOVERY) ? FeedActivityType.FEED_RESUME
+                            : FeedActivityType.FEED_BEGIN;
+                    FeedActivity feedActivity = new FeedActivity(feedInfo.feedId.getDataverse(),
+                            feedInfo.feedId.getDataset(), nextState, feedActivityDetails);
+                    MetadataManager.INSTANCE.registerFeedActivity(mdTxnCtx, new FeedId(feedInfo.feedId.getDataverse(),
+                            feedInfo.feedId.getDataset()), feedActivity);
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                } catch (Exception e) {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                } finally {
+                    MetadataManager.INSTANCE.releaseWriteLatch();
+                }
+            } catch (Exception e) {
+                // TODO Add Exception handling here
+            }
+
+        }
+
+        private void handleJobFinishMessage(FeedInfo feedInfo, Message message) {
+            MetadataManager.INSTANCE.acquireWriteLatch();
+            MetadataTransactionContext mdTxnCtx = null;
+            try {
+                IHyracksClientConnection hcc = AsterixAppContextInfo.getInstance().getHcc();
+                JobInfo info = hcc.getJobInfo(message.jobId);
+                JobStatus status = info.getPendingStatus();
+                List<Exception> exceptions;
+                boolean failure = status != null && status.equals(JobStatus.FAILURE);
+                FeedActivityType activityType = FeedActivityType.FEED_END;
+                Map<String, String> details = new HashMap<String, String>();
+                if (failure) {
+                    exceptions = info.getPendingExceptions();
+                    activityType = FeedActivityType.FEED_FAILURE;
+                    details.put(FeedActivity.FeedActivityDetails.EXCEPTION_MESSAGE, exceptions.get(0).getMessage());
+                }
+                mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                FeedActivity feedActivity = new FeedActivity(feedInfo.feedId.getDataverse(),
+                        feedInfo.feedId.getDataset(), activityType, details);
+                MetadataManager.INSTANCE.registerFeedActivity(mdTxnCtx, new FeedId(feedInfo.feedId.getDataverse(),
+                        feedInfo.feedId.getDataset()), feedActivity);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (RemoteException | ACIDException | MetadataException e) {
+                try {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                } catch (RemoteException | ACIDException ae) {
+                    throw new IllegalStateException(" Unable to abort ");
+                }
+            } catch (Exception e) {
+                // add exception handling here
+            } finally {
+                MetadataManager.INSTANCE.releaseWriteLatch();
+            }
+        }
+    }
+
+    public static class FeedInfo {
+        public FeedId feedId;
+        public JobSpecification jobSpec;
+        public List<String> ingestLocations = new ArrayList<String>();
+        public List<String> computeLocations = new ArrayList<String>();
+        public List<String> storageLocations = new ArrayList<String>();
+        public JobInfo jobInfo;
+        public Map<String, String> feedPolicy;
+
+        public FeedInfo(FeedId feedId, JobSpecification jobSpec, Map<String, String> feedPolicy) {
+            this.feedId = feedId;
+            this.jobSpec = jobSpec;
+            this.feedPolicy = feedPolicy;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (!(o instanceof FeedInfo)) {
+                return false;
+            }
+            return ((FeedInfo) o).feedId.equals(feedId);
+        }
+
+        @Override
+        public int hashCode() {
+            return feedId.hashCode();
+        }
+
+    }
+
+    @Override
+    public Set<IClusterManagementWork> notifyNodeFailure(Set<String> deadNodeIds) {
+        Collection<FeedInfo> feedInfos = feedJobNotificationHandler.registeredFeeds.values();
+        FeedFailureReport failureReport = new FeedFailureReport();
+        for (FeedInfo feedInfo : feedInfos) {
+            for (String deadNodeId : deadNodeIds) {
+                if (feedInfo.ingestLocations.contains(deadNodeId)) {
+                    List<FeedFailure> failures = failureReport.failures.get(feedInfo);
+                    if (failures == null) {
+                        failures = new ArrayList<FeedFailure>();
+                        failureReport.failures.put(feedInfo, failures);
+                    }
+                    failures.add(new FeedFailure(FeedFailure.FailureType.INGESTION_NODE, deadNodeId));
+                }
+                if (feedInfo.computeLocations.contains(deadNodeId)) {
+                    List<FeedFailure> failures = failureReport.failures.get(feedInfo);
+                    if (failures == null) {
+                        failures = new ArrayList<FeedFailure>();
+                        failureReport.failures.put(feedInfo, failures);
+                    }
+                    failures.add(new FeedFailure(FeedFailure.FailureType.COMPUTE_NODE, deadNodeId));
+                }
+                if (feedInfo.storageLocations.contains(deadNodeId)) {
+                    List<FeedFailure> failures = failureReport.failures.get(feedInfo);
+                    if (failures == null) {
+                        failures = new ArrayList<FeedFailure>();
+                        failureReport.failures.put(feedInfo, failures);
+                    }
+                    failures.add(new FeedFailure(FeedFailure.FailureType.STORAGE_NODE, deadNodeId));
+                }
+            }
+        }
+        if (failureReport.failures.isEmpty()) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                StringBuilder builder = new StringBuilder();
+                builder.append("No feed is affected by the failure of node(s): ");
+                for (String deadNodeId : deadNodeIds) {
+                    builder.append(deadNodeId + " ");
+                }
+                LOGGER.info(builder.toString());
+            }
+            return new HashSet<IClusterManagementWork>();
+        } else {
+            if (LOGGER.isLoggable(Level.WARNING)) {
+                StringBuilder builder = new StringBuilder();
+                builder.append("Feed affected by the failure of node(s): ");
+                for (String deadNodeId : deadNodeIds) {
+                    builder.append(deadNodeId + " ");
+                }
+                builder.append("\n");
+                for (FeedInfo fInfo : failureReport.failures.keySet()) {
+                    builder.append(fInfo.feedId);
+                }
+                LOGGER.warning(builder.toString());
+            }
+            return handleFailure(failureReport);
+        }
+    }
+
+    private Set<IClusterManagementWork> handleFailure(FeedFailureReport failureReport) {
+        reportFeedFailure(failureReport);
+        Set<IClusterManagementWork> work = new HashSet<IClusterManagementWork>();
+        Map<String, Map<FeedInfo, List<FailureType>>> failureMap = new HashMap<String, Map<FeedInfo, List<FailureType>>>();
+        FeedPolicyAccessor fpa = null;
+        List<FeedInfo> feedsToTerminate = new ArrayList<FeedInfo>();
+        for (Map.Entry<FeedInfo, List<FeedFailure>> entry : failureReport.failures.entrySet()) {
+            FeedInfo feedInfo = entry.getKey();
+            fpa = new FeedPolicyAccessor(feedInfo.feedPolicy);
+            if (!fpa.continueOnHardwareFailure()) {
+                if (LOGGER.isLoggable(Level.WARNING)) {
+                    LOGGER.warning("Feed " + feedInfo.feedId + " is governed by policy "
+                            + feedInfo.feedPolicy.get(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY));
+                    LOGGER.warning("Feed policy does not require feed to recover from hardware failure. Feed will terminate");
+                }
+                continue;
+            } else {
+                // insert feed recovery mode 
+                reportFeedRecoveryMode(feedInfo);
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Feed " + feedInfo.feedId + " is governed by policy "
+                            + feedInfo.feedPolicy.get(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY));
+                    LOGGER.info("Feed policy requires feed to recover from hardware failure. Attempting to recover feed");
+                }
+            }
+
+            List<FeedFailure> feedFailures = entry.getValue();
+            boolean recoveryPossible = true;
+            for (FeedFailure feedFailure : feedFailures) {
+                switch (feedFailure.failureType) {
+                    case COMPUTE_NODE:
+                    case INGESTION_NODE:
+                        Map<FeedInfo, List<FailureType>> failuresBecauseOfThisNode = failureMap.get(feedFailure.nodeId);
+                        if (failuresBecauseOfThisNode == null) {
+                            failuresBecauseOfThisNode = new HashMap<FeedInfo, List<FailureType>>();
+                            failuresBecauseOfThisNode.put(feedInfo, new ArrayList<FailureType>());
+                            failureMap.put(feedFailure.nodeId, failuresBecauseOfThisNode);
+                        }
+                        List<FailureType> feedF = failuresBecauseOfThisNode.get(feedInfo);
+                        if (feedF == null) {
+                            feedF = new ArrayList<FailureType>();
+                            failuresBecauseOfThisNode.put(feedInfo, feedF);
+                        }
+                        feedF.add(feedFailure.failureType);
+                        break;
+                    case STORAGE_NODE:
+                        recoveryPossible = false;
+                        if (LOGGER.isLoggable(Level.SEVERE)) {
+                            LOGGER.severe("Unrecoverable situation! lost storage node for the feed " + feedInfo.feedId);
+                        }
+                        List<String> requiredNodeIds = dependentFeeds.get(feedInfo);
+                        if (requiredNodeIds == null) {
+                            requiredNodeIds = new ArrayList<String>();
+                            dependentFeeds.put(feedInfo, requiredNodeIds);
+                        }
+                        requiredNodeIds.add(feedFailure.nodeId);
+                        failuresBecauseOfThisNode = failureMap.get(feedFailure.nodeId);
+                        if (failuresBecauseOfThisNode != null) {
+                            failuresBecauseOfThisNode.remove(feedInfo);
+                            if (failuresBecauseOfThisNode.isEmpty()) {
+                                failureMap.remove(feedFailure.nodeId);
+                            }
+                        }
+                        feedsToTerminate.add(feedInfo);
+                        break;
+                }
+            }
+            if (!recoveryPossible) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Terminating irrecoverable feed (loss of storage node) ");
+                }
+            }
+        }
+
+        if (!feedsToTerminate.isEmpty()) {
+            Thread t = new Thread(new FeedsDeActivator(feedsToTerminate));
+            t.start();
+        }
+
+        int numRequiredNodes = 0;
+        for (Entry<String, Map<FeedInfo, List<FeedFailure.FailureType>>> entry : failureMap.entrySet()) {
+            Map<FeedInfo, List<FeedFailure.FailureType>> v = entry.getValue();
+            for (FeedInfo finfo : feedsToTerminate) {
+                v.remove(finfo);
+            }
+            if (v.size() > 0) {
+                numRequiredNodes++;
+            }
+        }
+
+        if (numRequiredNodes > 0) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Number of additional nodes requested " + numRequiredNodes);
+            }
+            AddNodeWork addNodesWork = new AddNodeWork(failureMap.keySet().size(), this);
+            work.add(addNodesWork);
+            feedWorkRequestResponseHandler.registerFeedWork(addNodesWork.getWorkId(), failureReport);
+        } else {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Not requesting any new node. Feeds unrecoverable until the lost node(s) rejoin");
+            }
+        }
+        return work;
+    }
+
+    private void reportFeedFailure(FeedFailureReport failureReport) {
+        MetadataTransactionContext ctx = null;
+        FeedActivity fa = null;
+        Map<String, String> feedActivityDetails = new HashMap<String, String>();
+        StringBuilder builder = new StringBuilder();
+        MetadataManager.INSTANCE.acquireWriteLatch();
+        try {
+            ctx = MetadataManager.INSTANCE.beginTransaction();
+            for (Entry<FeedInfo, List<FeedFailure>> entry : failureReport.failures.entrySet()) {
+                FeedInfo feedInfo = entry.getKey();
+                List<FeedFailure> feedFailures = entry.getValue();
+                for (FeedFailure failure : feedFailures) {
+                    builder.append(failure + ",");
+                }
+                builder.deleteCharAt(builder.length() - 1);
+                feedActivityDetails.put(FeedActivityDetails.FEED_NODE_FAILURE, builder.toString());
+                fa = new FeedActivity(feedInfo.feedId.getDataverse(), feedInfo.feedId.getDataset(),
+                        FeedActivityType.FEED_FAILURE, feedActivityDetails);
+                MetadataManager.INSTANCE.registerFeedActivity(ctx, feedInfo.feedId, fa);
+            }
+            MetadataManager.INSTANCE.commitTransaction(ctx);
+        } catch (Exception e) {
+            if (ctx != null) {
+                try {
+                    MetadataManager.INSTANCE.abortTransaction(ctx);
+                } catch (Exception e2) {
+                    e2.addSuppressed(e);
+                    throw new IllegalStateException("Unable to abort transaction " + e2);
+                }
+            }
+        } finally {
+            MetadataManager.INSTANCE.releaseWriteLatch();
+        }
+    }
+
+    private void reportFeedRecoveryMode(FeedInfo feedInfo) {
+        MetadataTransactionContext ctx = null;
+        FeedActivity fa = null;
+        Map<String, String> feedActivityDetails = new HashMap<String, String>();
+        try {
+            ctx = MetadataManager.INSTANCE.beginTransaction();
+            fa = new FeedActivity(feedInfo.feedId.getDataverse(), feedInfo.feedId.getDataset(),
+                    FeedActivityType.FEED_RECOVERY, feedActivityDetails);
+            MetadataManager.INSTANCE.registerFeedActivity(ctx, feedInfo.feedId, fa);
+
+            MetadataManager.INSTANCE.commitTransaction(ctx);
+        } catch (Exception e) {
+            if (ctx != null) {
+                try {
+                    MetadataManager.INSTANCE.abortTransaction(ctx);
+                } catch (Exception e2) {
+                    e2.addSuppressed(e);
+                    throw new IllegalStateException("Unable to abort transaction " + e2);
+                }
+            }
+        }
+    }
+
+    public static class FeedFailure {
+
+        public enum FailureType {
+            INGESTION_NODE,
+            COMPUTE_NODE,
+            STORAGE_NODE
+        }
+
+        public FailureType failureType;
+        public String nodeId;
+
+        public FeedFailure(FailureType failureType, String nodeId) {
+            this.failureType = failureType;
+            this.nodeId = nodeId;
+        }
+
+        @Override
+        public String toString() {
+            return failureType + " (" + nodeId + ") ";
+        }
+    }
+
+    @Override
+    public Set<IClusterManagementWork> notifyNodeJoin(String joinedNodeId) {
+        State newState = AsterixClusterProperties.INSTANCE.getState();
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(joinedNodeId + " joined the cluster. " + "Asterix state: " + newState);
+        }
+
+        boolean needToReActivateFeeds = !newState.equals(state) && (newState == State.ACTIVE);
+        if (needToReActivateFeeds) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info(joinedNodeId + " Resuming loser feeds (if any)");
+            }
+            try {
+                FeedsActivator activator = new FeedsActivator();
+                (new Thread(activator)).start();
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Exception in resuming feeds" + e.getMessage());
+                }
+            }
+            state = newState;
+        } else {
+            List<FeedInfo> feedsThatCanBeRevived = new ArrayList<FeedInfo>();
+            for (Entry<FeedInfo, List<String>> entry : dependentFeeds.entrySet()) {
+                List<String> requiredNodeIds = entry.getValue();
+                if (requiredNodeIds.contains(joinedNodeId)) {
+                    requiredNodeIds.remove(joinedNodeId);
+                    if (requiredNodeIds.isEmpty()) {
+                        feedsThatCanBeRevived.add(entry.getKey());
+                    }
+                }
+            }
+            if (!feedsThatCanBeRevived.isEmpty()) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info(joinedNodeId + " Resuming feeds after rejoining of node " + joinedNodeId);
+                }
+                FeedsActivator activator = new FeedsActivator(feedsThatCanBeRevived);
+                (new Thread(activator)).start();
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public void notifyRequestCompletion(IClusterManagementWorkResponse response) {
+        try {
+            responseInbox.put(response);
+        } catch (InterruptedException e) {
+            if (LOGGER.isLoggable(Level.WARNING)) {
+                LOGGER.warning("Interrupted exception");
+            }
+        }
+    }
+
+    @Override
+    public void notifyStateChange(State previousState, State newState) {
+        switch (newState) {
+            case ACTIVE:
+                if (previousState.equals(State.UNUSABLE)) {
+                    try {
+                        FeedsActivator activator = new FeedsActivator();
+                        (new Thread(activator)).start();
+                    } catch (Exception e) {
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Exception in resuming feeds" + e.getMessage());
+                        }
+                    }
+                }
+                break;
+        }
+
+    }
+
+    private static class FeedsActivator implements Runnable {
+
+        private List<FeedInfo> feedsToRevive;
+        private Mode mode;
+
+        public enum Mode {
+            REVIVAL_POST_CLUSTER_REBOOT,
+            REVIVAL_POST_NODE_REJOIN
+        }
+
+        public FeedsActivator() {
+            this.mode = Mode.REVIVAL_POST_CLUSTER_REBOOT;
+        }
+
+        public FeedsActivator(List<FeedInfo> feedsToRevive) {
+            this.feedsToRevive = feedsToRevive;
+            this.mode = Mode.REVIVAL_POST_NODE_REJOIN;
+        }
+
+        @Override
+        public void run() {
+            switch (mode) {
+                case REVIVAL_POST_CLUSTER_REBOOT:
+                    revivePostClusterReboot();
+                    break;
+                case REVIVAL_POST_NODE_REJOIN:
+                    try {
+                        Thread.sleep(10000);
+                    } catch (InterruptedException e1) {
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Attempt to resume feed interrupted");
+                        }
+                        throw new IllegalStateException(e1.getMessage());
+                    }
+                    for (FeedInfo finfo : feedsToRevive) {
+                        try {
+                            JobId jobId = AsterixAppContextInfo.getInstance().getHcc().startJob(finfo.jobSpec);
+                            if (LOGGER.isLoggable(Level.INFO)) {
+                                LOGGER.info("Resumed feed :" + finfo.feedId + " job id " + jobId);
+                                LOGGER.info("Job:" + finfo.jobSpec);
+                            }
+                        } catch (Exception e) {
+                            if (LOGGER.isLoggable(Level.WARNING)) {
+                                LOGGER.warning("Unable to resume feed " + finfo.feedId + " " + e.getMessage());
+                            }
+                        }
+                    }
+            }
+        }
+
+        private void revivePostClusterReboot() {
+            MetadataTransactionContext ctx = null;
+
+            try {
+
+                Thread.sleep(4000);
+                MetadataManager.INSTANCE.init();
+                ctx = MetadataManager.INSTANCE.beginTransaction();
+                List<FeedActivity> activeFeeds = MetadataManager.INSTANCE.getActiveFeeds(ctx);
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Attempt to resume feeds that were active prior to instance shutdown!");
+                    LOGGER.info("Number of feeds affected:" + activeFeeds.size());
+                    for (FeedActivity fa : activeFeeds) {
+                        LOGGER.info("Active feed " + fa.getDataverseName() + ":" + fa.getDatasetName());
+                    }
+                }
+                for (FeedActivity fa : activeFeeds) {
+                    String feedPolicy = fa.getFeedActivityDetails().get(FeedActivityDetails.FEED_POLICY_NAME);
+                    FeedPolicy policy = MetadataManager.INSTANCE.getFeedPolicy(ctx, fa.getDataverseName(), feedPolicy);
+                    if (policy == null) {
+                        policy = MetadataManager.INSTANCE.getFeedPolicy(ctx, MetadataConstants.METADATA_DATAVERSE_NAME,
+                                feedPolicy);
+                        if (policy == null) {
+                            if (LOGGER.isLoggable(Level.SEVERE)) {
+                                LOGGER.severe("Unable to resume feed: " + fa.getDataverseName() + ":"
+                                        + fa.getDatasetName() + "." + " Unknown policy :" + feedPolicy);
+                            }
+                            continue;
+                        }
+                    }
+
+                    FeedPolicyAccessor fpa = new FeedPolicyAccessor(policy.getProperties());
+                    if (fpa.autoRestartOnClusterReboot()) {
+                        String dataverse = fa.getDataverseName();
+                        String datasetName = fa.getDatasetName();
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Resuming feed after cluster revival: " + dataverse + ":" + datasetName
+                                    + " using policy " + feedPolicy);
+                        }
+                        reviveFeed(dataverse, datasetName, feedPolicy);
+                    } else {
+                        if (LOGGER.isLoggable(Level.WARNING)) {
+                            LOGGER.warning("Feed " + fa.getDataverseName() + ":" + fa.getDatasetName()
+                                    + " governed by policy" + feedPolicy
+                                    + " does not state auto restart after cluster revival");
+                        }
+                    }
+                }
+                MetadataManager.INSTANCE.commitTransaction(ctx);
+
+            } catch (Exception e) {
+                e.printStackTrace();
+                try {
+                    MetadataManager.INSTANCE.abortTransaction(ctx);
+                } catch (Exception e1) {
+                    if (LOGGER.isLoggable(Level.SEVERE)) {
+                        LOGGER.severe("Exception in aborting" + e.getMessage());
+                    }
+                    throw new IllegalStateException(e1);
+                }
+            }
+        }
+
+        private void reviveFeed(String dataverse, String dataset, String feedPolicy) {
+            PrintWriter writer = new PrintWriter(System.out, true);
+            SessionConfig pc = new SessionConfig(true, false, false, false, false, false, true, true, false);
+            try {
+                DataverseDecl dataverseDecl = new DataverseDecl(new Identifier(dataverse));
+                BeginFeedStatement stmt = new BeginFeedStatement(new Identifier(dataverse), new Identifier(dataset),
+                        feedPolicy, 0);
+                stmt.setForceBegin(true);
+                List<Statement> statements = new ArrayList<Statement>();
+                statements.add(dataverseDecl);
+                statements.add(stmt);
+                AqlTranslator translator = new AqlTranslator(statements, writer, pc, DisplayFormat.TEXT);
+                translator.compileAndExecute(AsterixAppContextInfo.getInstance().getHcc(), null, false);
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Resumed feed: " + dataverse + ":" + dataset + " using policy " + feedPolicy);
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Exception in resuming loser feed: " + dataverse + ":" + dataset + " using policy "
+                            + feedPolicy + " Exception " + e.getMessage());
+                }
+            }
+        }
+
+    }
+
+    public static class FeedsDeActivator implements Runnable {
+
+        private List<FeedInfo> feedsToTerminate;
+
+        public FeedsDeActivator(List<FeedInfo> feedsToTerminate) {
+            this.feedsToTerminate = feedsToTerminate;
+        }
+
+        @Override
+        public void run() {
+            for (FeedInfo feedInfo : feedsToTerminate) {
+                endFeed(feedInfo);
+            }
+        }
+
+        private void endFeed(FeedInfo feedInfo) {
+            MetadataTransactionContext ctx = null;
+            PrintWriter writer = new PrintWriter(System.out, true);
+            SessionConfig pc = new SessionConfig(true, false, false, false, false, false, true, true, false);
+            try {
+                ctx = MetadataManager.INSTANCE.beginTransaction();
+                ControlFeedStatement stmt = new ControlFeedStatement(OperationType.END, new Identifier(
+                        feedInfo.feedId.getDataverse()), new Identifier(feedInfo.feedId.getDataset()));
+                List<Statement> statements = new ArrayList<Statement>();
+                DataverseDecl dataverseDecl = new DataverseDecl(new Identifier(feedInfo.feedId.getDataverse()));
+                statements.add(dataverseDecl);
+                statements.add(stmt);
+                AqlTranslator translator = new AqlTranslator(statements, writer, pc, DisplayFormat.TEXT);
+                translator.compileAndExecute(AsterixAppContextInfo.getInstance().getHcc(), null, false);
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("End urecoverable feed: " + feedInfo.feedId.getDataverse() + ":"
+                            + feedInfo.feedId.getDataset());
+                }
+                MetadataManager.INSTANCE.commitTransaction(ctx);
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Exception in ending loser feed: " + feedInfo.feedId + " Exception " + e.getMessage());
+                }
+                e.printStackTrace();
+                try {
+                    MetadataManager.INSTANCE.abortTransaction(ctx);
+                } catch (Exception e2) {
+                    e2.addSuppressed(e);
+                    if (LOGGER.isLoggable(Level.SEVERE)) {
+                        LOGGER.severe("Exception in aborting transaction! System is in inconsistent state");
+                    }
+                }
+
+            }
+
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedWorkRequestResponseHandler.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedWorkRequestResponseHandler.java
new file mode 100644
index 0000000..f7622be
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/FeedWorkRequestResponseHandler.java
@@ -0,0 +1,281 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Random;
+import java.util.Set;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.hyracks.bootstrap.FeedLifecycleListener.FeedFailure;
+import edu.uci.ics.asterix.hyracks.bootstrap.FeedLifecycleListener.FeedFailureReport;
+import edu.uci.ics.asterix.hyracks.bootstrap.FeedLifecycleListener.FeedInfo;
+import edu.uci.ics.asterix.hyracks.bootstrap.FeedLifecycleListener.FeedsDeActivator;
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWork;
+import edu.uci.ics.asterix.metadata.cluster.AddNodeWorkResponse;
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
+import edu.uci.ics.hyracks.api.constraints.Constraint;
+import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
+import edu.uci.ics.hyracks.api.constraints.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.api.constraints.expressions.ConstraintExpression;
+import edu.uci.ics.hyracks.api.constraints.expressions.ConstraintExpression.ExpressionTag;
+import edu.uci.ics.hyracks.api.constraints.expressions.LValueConstraintExpression;
+import edu.uci.ics.hyracks.api.constraints.expressions.PartitionCountExpression;
+import edu.uci.ics.hyracks.api.constraints.expressions.PartitionLocationExpression;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.OperatorDescriptorId;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+
+public class FeedWorkRequestResponseHandler implements Runnable {
+
+    private static final Logger LOGGER = Logger.getLogger(FeedWorkRequestResponseHandler.class.getName());
+
+    private final LinkedBlockingQueue<IClusterManagementWorkResponse> inbox;
+
+    private Map<Integer, FeedFailureReport> feedsWaitingForResponse = new HashMap<Integer, FeedFailureReport>();
+
+    public FeedWorkRequestResponseHandler(LinkedBlockingQueue<IClusterManagementWorkResponse> inbox) {
+        this.inbox = inbox;
+    }
+
+    @Override
+    public void run() {
+        while (true) {
+            IClusterManagementWorkResponse response = null;
+            try {
+                response = inbox.take();
+            } catch (InterruptedException e) {
+                if (LOGGER.isLoggable(Level.WARNING)) {
+                    LOGGER.warning("Interrupted exception " + e.getMessage());
+                }
+            }
+            IClusterManagementWork submittedWork = response.getWork();
+            switch (submittedWork.getClusterManagementWorkType()) {
+                case ADD_NODE:
+                    AddNodeWorkResponse resp = (AddNodeWorkResponse) response;
+                    switch (resp.getStatus()) {
+                        case FAILURE:
+                            if (LOGGER.isLoggable(Level.WARNING)) {
+                                LOGGER.warning("Request " + resp.getWork() + " not completed");
+                            }
+                            break;
+                        case SUCCESS:
+                            if (LOGGER.isLoggable(Level.WARNING)) {
+                                LOGGER.warning("Request " + resp.getWork() + " completed");
+                            }
+                            break;
+                    }
+
+                    AddNodeWork work = (AddNodeWork) submittedWork;
+                    FeedFailureReport failureReport = feedsWaitingForResponse.remove(work.getWorkId());
+                    Set<FeedInfo> affectedFeeds = failureReport.failures.keySet();
+                    for (FeedInfo feedInfo : affectedFeeds) {
+                        try {
+                            recoverFeed(feedInfo, resp, failureReport.failures.get(feedInfo));
+                            if (LOGGER.isLoggable(Level.INFO)) {
+                                LOGGER.info("Recovered feed:" + feedInfo);
+                            }
+                        } catch (Exception e) {
+                            if (LOGGER.isLoggable(Level.SEVERE)) {
+                                LOGGER.severe("Unable to recover feed:" + feedInfo);
+                            }
+                        }
+                    }
+                    break;
+                case REMOVE_NODE:
+                    break;
+            }
+        }
+    }
+
+    private void recoverFeed(FeedInfo feedInfo, AddNodeWorkResponse resp, List<FeedFailure> feedFailures)
+            throws Exception {
+        for (FeedFailure feedFailure : feedFailures) {
+            switch (feedFailure.failureType) {
+                case INGESTION_NODE:
+                    alterFeedJobSpec(feedInfo, resp, feedFailure.nodeId);
+                    break;
+            }
+        }
+        JobSpecification spec = feedInfo.jobSpec;
+        System.out.println("Altered Job Spec \n" + spec);
+        Thread.sleep(3000);
+        AsterixAppContextInfo.getInstance().getHcc().startJob(feedInfo.jobSpec);
+    }
+
+    private void alterFeedJobSpec(FeedInfo feedInfo, AddNodeWorkResponse resp, String failedNodeId) {
+        String replacementNode = null;
+        switch (resp.getStatus()) {
+            case FAILURE:
+                // TODO 1st preference is given to any other participant node that is not involved in the feed.
+                //      2nd preference is given to a compute node.
+                //      3rd preference is given to a storage node
+                Set<String> participantNodes = AsterixClusterProperties.INSTANCE.getParticipantNodes();
+                if (participantNodes != null && !participantNodes.isEmpty()) {
+                    participantNodes.removeAll(feedInfo.storageLocations);
+                    participantNodes.removeAll(feedInfo.computeLocations);
+                    if (!participantNodes.isEmpty()) {
+                        String[] participantNodesArray = AsterixClusterProperties.INSTANCE.getParticipantNodes()
+                                .toArray(new String[] {});
+
+                        replacementNode = participantNodesArray[new Random().nextInt(participantNodesArray.length)];
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Participant Node: " + replacementNode + " chosen as replacement for "
+                                    + failedNodeId);
+                        }
+                    }
+                }
+
+                if (replacementNode == null) {
+                    boolean computeNodeSubstitute = (feedInfo.computeLocations.contains(failedNodeId) && feedInfo.computeLocations
+                            .size() > 1);
+                    if (computeNodeSubstitute) {
+                        feedInfo.computeLocations.remove(failedNodeId);
+                        replacementNode = feedInfo.computeLocations.get(0);
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Compute node:" + replacementNode + " chosen to replace " + failedNodeId);
+                        }
+                    } else {
+                        replacementNode = feedInfo.storageLocations.get(0);
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Storage node:" + replacementNode + " chosen to replace " + failedNodeId);
+                        }
+                    }
+                }
+                break;
+            case SUCCESS:
+                Random r = new Random();
+                String[] rnodes = resp.getNodesAdded().toArray(new String[] {});
+                replacementNode = rnodes[r.nextInt(rnodes.length)];
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Newly added node:" + replacementNode + " chosen to replace " + failedNodeId);
+                }
+
+                break;
+        }
+
+        if (replacementNode == null) {
+            if (LOGGER.isLoggable(Level.SEVERE)) {
+                LOGGER.severe("Unable to find replacement for failed node :" + failedNodeId);
+                LOGGER.severe("Feed: " + feedInfo.feedId + " will be terminated");
+            }
+            List<FeedInfo> feedsToTerminate = new ArrayList<FeedInfo>();
+            feedsToTerminate.add(feedInfo);
+            Thread t = new Thread(new FeedsDeActivator(feedsToTerminate));
+            t.start();
+        } else {
+            replaceNode(feedInfo.jobSpec, failedNodeId, replacementNode);
+        }
+    }
+
+    private void replaceNode(JobSpecification jobSpec, String failedNodeId, String replacementNode) {
+        Set<Constraint> userConstraints = jobSpec.getUserConstraints();
+        List<Constraint> locationConstraintsToReplace = new ArrayList<Constraint>();
+        List<Constraint> countConstraintsToReplace = new ArrayList<Constraint>();
+        List<OperatorDescriptorId> modifiedOperators = new ArrayList<OperatorDescriptorId>();
+        Map<OperatorDescriptorId, List<Constraint>> candidateConstraints = new HashMap<OperatorDescriptorId, List<Constraint>>();
+        Map<OperatorDescriptorId, List<String>> newConstraints = new HashMap<OperatorDescriptorId, List<String>>();
+        OperatorDescriptorId opId = null;
+        for (Constraint constraint : userConstraints) {
+            LValueConstraintExpression lexpr = constraint.getLValue();
+            ConstraintExpression cexpr = constraint.getRValue();
+            switch (lexpr.getTag()) {
+                case PARTITION_COUNT:
+                    opId = ((PartitionCountExpression) lexpr).getOperatorDescriptorId();
+                    if (modifiedOperators.contains(opId)) {
+                        countConstraintsToReplace.add(constraint);
+                    } else {
+                        List<Constraint> clist = candidateConstraints.get(opId);
+                        if (clist == null) {
+                            clist = new ArrayList<Constraint>();
+                            candidateConstraints.put(opId, clist);
+                        }
+                        clist.add(constraint);
+                    }
+                    break;
+                case PARTITION_LOCATION:
+                    opId = ((PartitionLocationExpression) lexpr).getOperatorDescriptorId();
+                    String oldLocation = (String) ((ConstantExpression) cexpr).getValue();
+                    if (oldLocation.equals(failedNodeId)) {
+                        locationConstraintsToReplace.add(constraint);
+                        modifiedOperators.add(((PartitionLocationExpression) lexpr).getOperatorDescriptorId());
+                        List<String> newLocs = newConstraints.get(opId);
+                        if (newLocs == null) {
+                            newLocs = new ArrayList<String>();
+                            newConstraints.put(opId, newLocs);
+                        }
+                        newLocs.add(replacementNode);
+                    } else {
+                        if (modifiedOperators.contains(opId)) {
+                            locationConstraintsToReplace.add(constraint);
+                            List<String> newLocs = newConstraints.get(opId);
+                            if (newLocs == null) {
+                                newLocs = new ArrayList<String>();
+                                newConstraints.put(opId, newLocs);
+                            }
+                            newLocs.add(oldLocation);
+                        } else {
+                            List<Constraint> clist = candidateConstraints.get(opId);
+                            if (clist == null) {
+                                clist = new ArrayList<Constraint>();
+                                candidateConstraints.put(opId, clist);
+                            }
+                            clist.add(constraint);
+                        }
+                    }
+                    break;
+            }
+        }
+
+        jobSpec.getUserConstraints().removeAll(locationConstraintsToReplace);
+        jobSpec.getUserConstraints().removeAll(countConstraintsToReplace);
+
+        for (OperatorDescriptorId mopId : modifiedOperators) {
+            List<Constraint> clist = candidateConstraints.get(mopId);
+            if (clist != null && !clist.isEmpty()) {
+                jobSpec.getUserConstraints().removeAll(clist);
+
+                for (Constraint c : clist) {
+                    if (c.getLValue().getTag().equals(ExpressionTag.PARTITION_LOCATION)) {
+                        ConstraintExpression cexpr = c.getRValue();
+                        String oldLocation = (String) ((ConstantExpression) cexpr).getValue();
+                        newConstraints.get(mopId).add(oldLocation);
+                    }
+                }
+            }
+        }
+
+        for (Entry<OperatorDescriptorId, List<String>> entry : newConstraints.entrySet()) {
+            OperatorDescriptorId nopId = entry.getKey();
+            List<String> clist = entry.getValue();
+            IOperatorDescriptor op = jobSpec.getOperatorMap().get(nopId);
+            PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, op, clist.toArray(new String[] {}));
+        }
+
+    }
+
+    public void registerFeedWork(int workId, FeedFailureReport failureReport) {
+        feedsWaitingForResponse.put(workId, failureReport);
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
index 96d0617..187394a 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
@@ -25,14 +25,18 @@
 import edu.uci.ics.asterix.common.api.AsterixThreadFactory;
 import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
+import edu.uci.ics.asterix.common.config.AsterixTransactionProperties;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
 import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
 import edu.uci.ics.asterix.common.transactions.IRecoveryManager.SystemState;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataNode;
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataBootstrap;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepository;
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.application.INCApplicationEntryPoint;
@@ -59,14 +63,22 @@
         JVMShutdownHook sHook = new JVMShutdownHook(this);
         Runtime.getRuntime().addShutdownHook(sHook);
 
-     
         runtimeContext = new AsterixAppRuntimeContext(ncApplicationContext);
+        AsterixMetadataProperties metadataProperties = ((IAsterixPropertiesProvider) runtimeContext)
+                .getMetadataProperties();
+        if (!metadataProperties.getNodeNames().contains(ncApplicationContext.getNodeId())) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Substitute node joining : " + ncApplicationContext.getNodeId());
+            }
+            updateOnNodeJoin();
+        }
         runtimeContext.initialize();
         ncApplicationContext.setApplicationObject(runtimeContext);
 
         // #. recover if the system is corrupted by checking system state.
         IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem().getRecoveryManager();
         systemState = recoveryMgr.getSystemState();
+
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("System is in a state: " + systemState);
         }
@@ -130,21 +142,25 @@
         isMetadataNode = nodeId.equals(metadataProperties.getMetadataNodeName());
         if (isMetadataNode) {
             registerRemoteMetadataNode(proxy);
+        }
+        MetadataManager.INSTANCE = new MetadataManager(proxy, metadataProperties);
+        MetadataManager.INSTANCE.init();
 
+        if (isMetadataNode) {
             if (LOGGER.isLoggable(Level.INFO)) {
                 LOGGER.info("Bootstrapping metadata");
             }
-            MetadataManager.INSTANCE = new MetadataManager(proxy, metadataProperties);
-            MetadataManager.INSTANCE.init();
+
             MetadataBootstrap.startUniverse(((IAsterixPropertiesProvider) runtimeContext), ncApplicationContext,
                     systemState == SystemState.NEW_UNIVERSE);
             MetadataBootstrap.startDDLRecovery();
         }
 
+        ExternalLibraryBootstrap.setUpExternaLibraries(isMetadataNode);
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("Starting lifecycle components");
         }
-        
+
         Map<String, String> lifecycleMgmtConfiguration = new HashMap<String, String>();
         String key = LifeCycleComponentManager.Config.DUMP_PATH_KEY;
         String value = metadataProperties.getCoredumpPath(nodeId);
@@ -156,7 +172,7 @@
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("Configured:" + LifeCycleComponentManager.INSTANCE);
         }
-        
+
         LifeCycleComponentManager.INSTANCE.startAll();
 
         IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem().getRecoveryManager();
@@ -177,6 +193,47 @@
         }
     }
 
+    private void updateOnNodeJoin() {
+        AsterixMetadataProperties metadataProperties = ((IAsterixPropertiesProvider) runtimeContext)
+                .getMetadataProperties();
+        AsterixTransactionProperties txnProperties = ((IAsterixPropertiesProvider) runtimeContext)
+                .getTransactionProperties();
+        if (!metadataProperties.getNodeNames().contains(nodeId)) {
+            metadataProperties.getNodeNames().add(nodeId);
+            Cluster cluster = AsterixClusterProperties.INSTANCE.getCluster();
+            String asterixInstanceName = cluster.getInstanceName();
+            Node self = null;
+            for (Node node : cluster.getSubstituteNodes().getNode()) {
+                String ncId = asterixInstanceName + "_" + node.getId();
+                if (ncId.equalsIgnoreCase(nodeId)) {
+                    String storeDir = node.getStore() == null ? cluster.getStore() : node.getStore();
+                    metadataProperties.getStores().put(nodeId, storeDir.split(","));
+
+                    String coredumpPath = node.getLogDir() == null ? cluster.getLogDir() : node.getLogDir();
+                    metadataProperties.getCoredumpPaths().put(nodeId, coredumpPath);
+
+                    String txnLogDir = node.getTxnLogDir() == null ? cluster.getTxnLogDir() : node.getTxnLogDir();
+                    txnProperties.getLogDirectories().put(nodeId, txnLogDir);
+
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("Store set to : " + storeDir);
+                        LOGGER.info("Coredump dir set to : " + coredumpPath);
+                        LOGGER.info("Transaction log dir set to :" + txnLogDir);
+                    }
+                    self = node;
+                    break;
+                }
+            }
+            if (self != null) {
+                cluster.getSubstituteNodes().getNode().remove(self);
+                cluster.getNode().add(self);
+            } else {
+                throw new IllegalStateException("Unknown node joining the cluster");
+            }
+        }
+
+    }
+
     /**
      * Shutdown hook that invokes {@link NCApplicationEntryPoint#stop() stop} method.
      */
@@ -202,4 +259,4 @@
         }
     }
 
-}
\ No newline at end of file
+}
diff --git a/asterix-app/src/main/resources/test.properties b/asterix-app/src/main/resources/test.properties
old mode 100755
new mode 100644
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java
index 36bf23c..c4672ca 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java
@@ -17,6 +17,8 @@
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import org.apache.commons.io.FileUtils;
 import org.junit.AfterClass;
@@ -40,6 +42,9 @@
  */
 @RunWith(Parameterized.class)
 public class ExecutionTest {
+
+    private static final Logger LOGGER = Logger.getLogger(ExecutionTest.class.getName());
+
     private static final String PATH_ACTUAL = "rttest/";
     private static final String PATH_BASE = "src/test/resources/runtimets/";
 
@@ -50,6 +55,10 @@
 
     @BeforeClass
     public static void setUp() throws Exception {
+        System.out.println("Starting setup");
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Starting setup");
+        }
         System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
         System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, "19002");
         File outdir = new File(PATH_ACTUAL);
@@ -60,16 +69,26 @@
 
         deleteTransactionLogs();
 
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("initializing pseudo cluster");
+        }
         AsterixHyracksIntegrationUtil.init();
 
-        // TODO: Uncomment when hadoop version is upgraded and adapters are
-        // ported. 
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("initializing HDFS");
+        }
+
         HDFSCluster.getInstance().setup();
 
         // Set the node resolver to be the identity resolver that expects node names 
         // to be node controller ids; a valid assumption in test environment. 
         System.setProperty(FileSystemBasedAdapter.NODE_RESOLVER_FACTORY_PROPERTY,
                 IdentitiyResolverFactory.class.getName());
+
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Set up complete");
+        }
+
     }
 
     @AfterClass
@@ -100,6 +119,7 @@
 
     @Parameters
     public static Collection<Object[]> tests() throws Exception {
+        System.out.println("starting collection");
         Collection<Object[]> testArgs = new ArrayList<Object[]>();
         TestCaseContext.Builder b = new TestCaseContext.Builder();
         for (TestCaseContext ctx : b.build(new File(PATH_BASE))) {
@@ -114,8 +134,13 @@
         this.tcCtx = tcCtx;
     }
 
+    // issue_251_dataset_hint
+    //  feed_01,02,03,04,issue_230_feeds  
+    // 
     @Test
     public void test() throws Exception {
+        //    if (tcCtx.getTestCase().getCompilationUnit().get(0).getName().contains("issue_230_feeds")) {
         TestsUtils.executeTest(PATH_ACTUAL, tcCtx);
+        //  }
     }
 }
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java
index d6a813c..2318a04 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java
@@ -88,8 +88,10 @@
     }
 
     public void cleanup() throws Exception {
-        dfsCluster.shutdown();
-        cleanupLocal();
+        if (dfsCluster != null) {
+            dfsCluster.shutdown();
+            cleanupLocal();
+        }
     }
 
     public static void main(String[] args) throws Exception {
diff --git a/asterix-app/src/test/resources/hadoop/conf/core-site.xml b/asterix-app/src/test/resources/hadoop/conf/core-site.xml
index 5b1023c..433325a 100644
--- a/asterix-app/src/test/resources/hadoop/conf/core-site.xml
+++ b/asterix-app/src/test/resources/hadoop/conf/core-site.xml
@@ -21,7 +21,7 @@
 
 <property>
     <name>fs.default.name</name>
-    <value>hdfs://127.0.0.1:31888</value>
+    <value>hdfs://192.168.0.103:31888</value>
 </property>
 <property>
     <name>hadoop.tmp.dir</name>
diff --git a/asterix-app/src/test/resources/logging.properties b/asterix-app/src/test/resources/logging.properties
index cf1457f..c904be4 100644
--- a/asterix-app/src/test/resources/logging.properties
+++ b/asterix-app/src/test/resources/logging.properties
@@ -79,3 +79,5 @@
 #edu.uci.ics.asterix.level = FINE
 #edu.uci.ics.hyracks.algebricks.level = FINE
 #edu.uci.ics.hyracks.level = INFO
+edu.uci.ics.asterix.test = INFO
+edu.uci.ics.asterix.installer.test = INFO
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta15.adm b/asterix-app/src/test/resources/metadata/results/basic/meta15.adm
index 4414ed0..b55d936 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta15.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta15.adm
@@ -1,6 +1,9 @@
-{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "generic_socket_feed", "Classname": "edu.uci.ics.asterix.tools.external.data.GenericSocketFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter_feed", "Classname": "edu.uci.ics.asterix.tools.external.data.SyntheticTwitterFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "twitter_firehose", "Classname": "edu.uci.ics.asterix.tools.external.data.TwitterFirehoseFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm
index 4414ed0..b55d936 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm
@@ -1,6 +1,9 @@
-{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
-{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "generic_socket_feed", "Classname": "edu.uci.ics.asterix.tools.external.data.GenericSocketFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter_feed", "Classname": "edu.uci.ics.asterix.tools.external.data.SyntheticTwitterFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "Name": "twitter_firehose", "Classname": "edu.uci.ics.asterix.tools.external.data.TwitterFirehoseFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta16.adm b/asterix-app/src/test/resources/metadata/results/basic/meta16.adm
index b56fe7c..89a1dc9 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta16.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta16.adm
@@ -1,8 +1,11 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 2, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 8, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 3, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 1, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "DataTypeName": "FeedActivityRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "ActivityId" ], "PrimaryKey": [ "DataverseName", "DatasetName", "ActivityId" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 10, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "DataTypeName": "FeedPolicyRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "PolicyName" ], "PrimaryKey": [ "DataverseName", "PolicyName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 11, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 7, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 4, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "DataTypeName": "LibraryRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 9, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 5, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 6, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm
index b56fe7c..89a1dc9 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm
@@ -1,8 +1,11 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 2, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 8, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 3, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 1, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "DataTypeName": "FeedActivityRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "ActivityId" ], "PrimaryKey": [ "DataverseName", "DatasetName", "ActivityId" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 10, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "DataTypeName": "FeedPolicyRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "PolicyName" ], "PrimaryKey": [ "DataverseName", "PolicyName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 11, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 7, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 4, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "DataTypeName": "LibraryRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 9, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 5, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "DatasetId": 6, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta17.adm b/asterix-app/src/test/resources/metadata/results/basic/meta17.adm
index 2de89a6..03b73f7 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta17.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta17.adm
@@ -1,60 +1,69 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "DatasetId", "FieldType": "int32" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedActivityRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "ActivityId", "FieldType": "int32" }, { "FieldName": "ActivityType", "FieldType": "string" }, { "FieldName": "UpdateTimestamp", "FieldType": "string" }, { "FieldName": "Details", "FieldType": "Field_Details_in_FeedActivityRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedPolicyRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "PolicyName", "FieldType": "string" }, { "FieldName": "Description", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_FeedPolicyRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Details_in_FeedActivityRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Properties_in_FeedPolicyRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "LibraryRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
index d193dd1..03b73f7 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
@@ -1,62 +1,69 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "DatasetId", "FieldType": "int32" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedActivityRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "ActivityId", "FieldType": "int32" }, { "FieldName": "ActivityType", "FieldType": "string" }, { "FieldName": "UpdateTimestamp", "FieldType": "string" }, { "FieldName": "Details", "FieldType": "Field_Details_in_FeedActivityRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedPolicyRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "PolicyName", "FieldType": "string" }, { "FieldName": "Description", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_FeedPolicyRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Details_in_FeedActivityRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Properties_in_FeedPolicyRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "LibraryRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta19.adm b/asterix-app/src/test/resources/metadata/results/basic/meta19.adm
index 607bfd1..00578f9 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta19.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta19.adm
@@ -1,11 +1,14 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "IndexName": "FeedActivity", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "ActivityId" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "IndexName": "FeedPolicy", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "PolicyName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "IndexName": "Library", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm
index 607bfd1..00578f9 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm
@@ -1,11 +1,14 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "IndexName": "FeedActivity", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "ActivityId" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "IndexName": "FeedPolicy", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "PolicyName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "IndexName": "Library", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:30:03 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm
index 8abc339..c4e0eaa 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm
@@ -1,8 +1,11 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 2, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 8, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 3, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 1, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "DataTypeName": "FeedActivityRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "ActivityId" ], "PrimaryKey": [ "DataverseName", "DatasetName", "ActivityId" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 10, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "DataTypeName": "FeedPolicyRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "PolicyName" ], "PrimaryKey": [ "DataverseName", "PolicyName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 11, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 7, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 4, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "DataTypeName": "LibraryRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 9, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 5, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 6, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm
index 0078603..c4e0eaa 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm
@@ -1,9 +1,11 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 2, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 8, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 3, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "DatasetId": 1, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "DataTypeName": "FeedActivityRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "ActivityId" ], "PrimaryKey": [ "DataverseName", "DatasetName", "ActivityId" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 10, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "DataTypeName": "FeedPolicyRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "PolicyName" ], "PrimaryKey": [ "DataverseName", "PolicyName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 11, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 7, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 4, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "DataTypeName": "LibraryRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 9, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 5, "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "DatasetId": 6, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm
index b351cfb..e7be7c6 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm
@@ -1,56 +1,69 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "DatasetId", "FieldType": "int32" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedActivityRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "ActivityId", "FieldType": "int32" }, { "FieldName": "ActivityType", "FieldType": "string" }, { "FieldName": "UpdateTimestamp", "FieldType": "string" }, { "FieldName": "Details", "FieldType": "Field_Details_in_FeedActivityRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedPolicyRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "PolicyName", "FieldType": "string" }, { "FieldName": "Description", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_FeedPolicyRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Details_in_FeedActivityRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Properties_in_FeedPolicyRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "LibraryRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
index cecdb85..e7be7c6 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
@@ -1,62 +1,69 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
-{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "DatasetId", "FieldType": "int32" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedActivityRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "ActivityId", "FieldType": "int32" }, { "FieldName": "ActivityType", "FieldType": "string" }, { "FieldName": "UpdateTimestamp", "FieldType": "string" }, { "FieldName": "Details", "FieldType": "Field_Details_in_FeedActivityRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FeedPolicyRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "PolicyName", "FieldType": "string" }, { "FieldName": "Description", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_FeedPolicyRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Details_in_FeedActivityRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Details_in_FeedActivityRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Properties_in_FeedPolicyRecordType_ItemType", "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_FeedPolicyRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" }, { "FieldName": "PendingOp", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "LibraryRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm
index 607bfd1..51aa08e 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm
@@ -1,11 +1,14 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "IndexName": "FeedActivity", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "ActivityId" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "IndexName": "FeedPolicy", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "PolicyName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "IndexName": "Library", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm
index 607bfd1..51aa08e 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm
@@ -1,11 +1,14 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:10 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedActivity", "IndexName": "FeedActivity", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "ActivityId" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "FeedPolicy", "IndexName": "FeedPolicy", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "PolicyName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Library", "IndexName": "Library", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Thu Jul 11 18:40:11 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
index 1bd4b73..cd51b5e 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
@@ -52,4 +52,4 @@
 let $c3 := int32("320")
 let $c4 := int64("640")
 return {"int8": $c1,"int16": $c2,"int32": $c3, "int8co": $o.int8co, "int64": $c4}
-*/
\ No newline at end of file
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.2.update.aql
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.2.update.aql
+++ /dev/null
diff --git a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.1.ddl.aql
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.1.ddl.aql
+++ /dev/null
diff --git a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.2.update.aql
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443/query-issue443.2.update.aql
+++ /dev/null
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.1.ddl.aql
new file mode 100644
index 0000000..1883c94
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+  
+create dataset LineID2(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.2.update.aql
new file mode 100644
index 0000000..e155837
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.2.update.aql
@@ -0,0 +1,35 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID (
+let $x:=2
+let $y:=3
+let $z:=4
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID2 (
+  for $x in dataset LineID
+  return flow-record($x)
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.3.query.aql
new file mode 100644
index 0000000..e4763e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-record-function/insert-record-function.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+for $c in dataset('LineID2')
+order by $c.l_orderkey, $c.l_linenumber
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql
index aafd2c9..1f6b30d 100644
--- a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql
@@ -9,6 +9,7 @@
 create dataverse feeds;
 use dataverse feeds;
 
+
 create type TweetType as closed {
   id: string,
   username : string,
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql
index 01b0925..26b1469 100644
--- a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql
@@ -6,5 +6,7 @@
  */
 
 use dataverse feeds;
-  
+
+set wait-for-completion-feed "true";
+
 begin feed TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql
index 060576e..c0d70b9 100644
--- a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql
@@ -8,4 +8,6 @@
   
 use dataverse feeds;
 
+set wait-for-completion-feed "true";
+
 begin feed TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.1.ddl.aql
new file mode 100644
index 0000000..bdeed63
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.1.ddl.aql
@@ -0,0 +1,37 @@
+/*
+ * Description  : Create a feed dataset that uses the synthetic feed simulator adapter. 
+                  The synthetic feed simulator uses the Social-Data generator to generate data and simulate a feed. The                   feed lasts a configured duration with data arriving at a configured rate (tweets per second). 
+                  Verify the existence of data after the feed finishes.
+                  
+ * Expected Res : Success
+ * Date         : 20th Jun 2013
+ */
+
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TwitterUserType as closed {
+	screen-name: string,
+	lang: string,
+	friends_count: int32,
+	statuses_count: int32,
+	name: string,
+	followers_count: int32
+} 
+
+create type TweetMessageType as closed {
+	tweetid: string,
+        user: TwitterUserType,
+        sender-location: point,
+	send-time: datetime,
+        referred-topics: {{ string }},
+	message-text: string
+}
+
+
+create feed dataset SyntheticTweetFeed(TweetMessageType)
+using "edu.uci.ics.asterix.tools.external.data.SyntheticTwitterFeedAdapterFactory"
+(("duration"="5"),("tps"="2"),("dataverse-dataset"="feeds:SyntheticTweetFeed"))
+primary key tweetid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.2.update.aql
new file mode 100644
index 0000000..378cada
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create a feed dataset that uses the synthetic feed simulator adapter.
+                  The synthetic feed simulator uses the Social-Data generator to generate data and simulate a feed. 
+                  The feed lasts a configured duration with data arriving at a configured rate (tweets per second).
+                  Verify the existence of data after the feed finishes.
+
+ * Expected Res : Success
+ * Date         : 20th Jun 2013
+ */
+  
+use dataverse feeds;
+
+set wait-for-completion-feed "true";
+
+begin feed SyntheticTweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.3.query.aql
new file mode 100644
index 0000000..a9ce3a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_05/feeds_05.3.query.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Create a feed dataset that uses the synthetic feed simulator adapter.
+                  The synthetic feed simulator uses the Social-Data generator to generate data and simulate a feed. The                   feed lasts a configured duration with data arriving at a configured rate (tweets per second).
+                  Verify the existence of data after the feed finishes.
+
+ * Expected Res : Success
+ * Date         : 20th Jun 2013
+ */
+
+use dataverse feeds;
+
+let $totalTweets:=count(
+for $x in dataset('SyntheticTweetFeed')
+return $x)
+return 
+(if($totalTweets > 0)
+  then 1
+else
+  0
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql
index 62ac61f..f61f320 100644
--- a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql
@@ -8,6 +8,7 @@
 create dataverse feeds;
 use dataverse feeds;
 
+
 create type TweetType as closed {
   id: string,
   username : string,
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql
index 0e22d6e..4919a34 100644
--- a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql
@@ -6,5 +6,7 @@
  */
 
 use dataverse feeds;
-  
+
+set wait-for-completion-feed "true";
+ 
 begin feed feeds.TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql
index 7851440..7c08919 100644
--- a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql
@@ -8,4 +8,6 @@
 
 use dataverse feeds;
 
+set wait-for-completion-feed "true";
+
 begin feed feeds.TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.1.ddl.aql
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.1.ddl.aql
+++ /dev/null
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.2.update.aql
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue442/query-issue442.2.update.aql
+++ /dev/null
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-record-function/insert-record-function.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-record-function/insert-record-function.1.adm
new file mode 100644
index 0000000..3ea2b0c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/insert-record-function/insert-record-function.1.adm
@@ -0,0 +1,2 @@
+{ "l_orderkey": 1, "l_linenumber": 2, "l_suppkey": 3 }
+{ "l_orderkey": 2, "l_linenumber": 3, "l_suppkey": 4 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm
index 4e3714c..fb4e84e 100644
--- a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm
@@ -1 +1 @@
-{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": null, "Status": "INACTIVE" }, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:07:24 PST 2013" }
+{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": null }, "Hints": {{  }}, "Timestamp": "Tue Jun 11 13:56:43 PDT 2013", "DatasetId": 696, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm
index 8011e4b..d8a0c3f 100644
--- a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm
@@ -1 +1 @@
-{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": "feeds.feed_processor@1", "Status": "INACTIVE" }, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:08:49 PST 2013" }
+{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": "feeds.feed_processor@1" }, "Hints": {{  }}, "Timestamp": "Tue Jun 11 12:28:32 PDT 2013", "DatasetId": 698, "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_05/feeds_05.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_05/feeds_05.1.adm
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_05/feeds_05.1.adm
@@ -0,0 +1 @@
+1
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
index dd29199..1fefaf0 100644
--- a/asterix-app/src/test/resources/runtimets/testsuite.xml
+++ b/asterix-app/src/test/resources/runtimets/testsuite.xml
@@ -4315,6 +4315,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="feeds">
+      <compilation-unit name="feeds_05">
+        <output-dir compare="Text">feeds_05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
       <compilation-unit name="issue_230_feeds">
         <output-dir compare="Text">issue_230_feeds</output-dir>
       </compilation-unit>
diff --git a/asterix-aql/pom.xml b/asterix-aql/pom.xml
index da13747..baa2c30 100644
--- a/asterix-aql/pom.xml
+++ b/asterix-aql/pom.xml
@@ -115,6 +115,12 @@
 	</build>
 
 	<dependencies>
+                <dependency>
+                        <groupId>junit</groupId>
+                        <artifactId>junit</artifactId>
+                        <version>4.8.1</version>
+                        <scope>test</scope>
+                </dependency>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-common</artifactId>
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
index a119e2a..8262b41 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
@@ -24,7 +24,6 @@
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
@@ -32,17 +31,23 @@
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
 
 public class BeginFeedStatement implements Statement {
 
     private final Identifier dataverseName;
     private final Identifier datasetName;
+    private final String policy;
     private Query query;
     private int varCounter;
+    private boolean forceBegin = false;
 
-    public BeginFeedStatement(Identifier dataverseName, Identifier datasetName, int varCounter) {
+    public static final String WAIT_FOR_COMPLETION = "wait-for-completion-feed";
+
+    public BeginFeedStatement(Identifier dataverseName, Identifier datasetName, String policy, int varCounter) {
         this.dataverseName = dataverseName;
         this.datasetName = datasetName;
+        this.policy = policy != null ? policy : BuiltinFeedPolicies.DEFAULT_POLICY.getPolicyName();
         this.varCounter = varCounter;
     }
 
@@ -70,7 +75,7 @@
                 builder.append(" let $y:=(" + function.getFunctionBody() + ")" + " return $y");
             } else {
                 builder.append(" (" + " for $x in feed-ingest ('" + datasetName + "') ");
-                builder.append(" let $y:=" + function.getName() + "(" + "$x" + ")");
+                builder.append(" let $y:=" + dataset.getDataverseName() + "." + function.getName() + "(" + "$x" + ")");
                 builder.append(" return $y");
             }
 
@@ -110,6 +115,10 @@
         return Kind.BEGIN_FEED;
     }
 
+    public String getPolicy() {
+        return policy;
+    }
+
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitBeginFeedStatement(this, arg);
@@ -120,4 +129,12 @@
         visitor.visit(this, arg);
     }
 
+    public boolean isForceBegin() {
+        return forceBegin;
+    }
+
+    public void setForceBegin(boolean forceBegin) {
+        this.forceBegin = forceBegin;
+    }
+
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
index a50625b..b574ee6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
@@ -23,8 +23,9 @@
     private final List<String> partitioningExprs;
 
     public InternalDetailsDecl(Identifier nodeGroupName, List<String> partitioningExpr) {
-        this.nodegroupName = nodeGroupName == null ? new Identifier(MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME)
-                : nodeGroupName;
+        // this.nodegroupName = nodeGroupName == null ? new Identifier(MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME)
+        //       : nodeGroupName;
+        this.nodegroupName = nodeGroupName;
         this.partitioningExprs = partitioningExpr;
     }
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
index a9d8585..b05b308 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
@@ -177,34 +177,42 @@
                 continue;
             }
 
-            FunctionDecl functionDecl = lookupUserDefinedFunctionDecl(signature);
-            if (functionDecl != null) {
-                if (functionDecls.contains(functionDecl)) {
-                    throw new AsterixException(" Detected recursvity!");
+            Function function = lookupUserDefinedFunctionDecl(signature);
+            if (function == null) {
+                if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(signature, includePrivateFunctions)) {
+                    continue;
+                }
+                StringBuilder messageBuilder = new StringBuilder();
+                if (functionDecls.size() > 0) {
+                    messageBuilder.append(" function " + functionDecls.get(functionDecls.size() - 1).getSignature()
+                            + " depends upon function " + signature + " which is undefined");
                 } else {
+                    messageBuilder.append(" function " + signature + " is undefined ");
+                }
+                throw new AsterixException(messageBuilder.toString());
+            }
+
+            if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+                FunctionDecl functionDecl = FunctionUtils.getFunctionDecl(function);
+                if (functionDecl != null) {
+                    if (functionDecls.contains(functionDecl)) {
+                        throw new AsterixException("ERROR:Recursive invocation "
+                                + functionDecls.get(functionDecls.size() - 1).getSignature() + " <==> "
+                                + functionDecl.getSignature());
+                    }
                     functionDecls.add(functionDecl);
                     buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
                 }
-            } else {
-                if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(signature, includePrivateFunctions)) {
-                    continue;
-                } else {
-                    throw new AsterixException(" unknown function " + signature);
-                }
             }
         }
+
     }
 
-    private FunctionDecl lookupUserDefinedFunctionDecl(FunctionSignature signature) throws AsterixException {
+    private Function lookupUserDefinedFunctionDecl(FunctionSignature signature) throws AsterixException {
         if (signature.getNamespace() == null) {
             return null;
         }
-        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
-        if (function == null) {
-            return null;
-        }
-        return FunctionUtils.getFunctionDecl(function);
-
+        return MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
     }
 
     private Set<FunctionSignature> getFunctionCalls(Expression expression) throws AsterixException {
diff --git a/asterix-aql/src/main/javacc/AQL.jj b/asterix-aql/src/main/javacc/AQL.jj
index 84d46f5..c62edcf 100644
--- a/asterix-aql/src/main/javacc/AQL.jj
+++ b/asterix-aql/src/main/javacc/AQL.jj
@@ -85,6 +85,12 @@
       }
     };  
    
+    private static class FunctionName {
+	   public String dataverse = null;
+	   public String library = null;
+	   public String function = null;
+	}
+
     private static String getHint(Token t) {
         if (t.specialToken == null) {
             return null;
@@ -202,7 +208,7 @@
   TypeExpression typeExpr = null;
 }
 {
-  "type" nameComponents = FunctionOrTypeName() ifNotExists = IfNotExists()
+  "type" nameComponents = TypeName() ifNotExists = IfNotExists()
   "as" typeExpr = TypeExpr()
     {
       long numValues = -1;
@@ -410,18 +416,32 @@
   boolean ifNotExists = false;
   List<VarIdentifier> paramList = new ArrayList<VarIdentifier>();
   String functionBody;
+  VarIdentifier var = null;
   Expression functionBodyExpr;
   Token beginPos;
   Token endPos;
-  Pair<Identifier,Identifier> nameComponents=null;
-
+  FunctionName fctName = null;
+  
   createNewScope();
 }
 {
-  "function" nameComponents = FunctionOrTypeName()
+  "function" fctName = FunctionName()
   ifNotExists = IfNotExists()
-  paramList = ParameterList()
-  "{"
+  <LEFTPAREN> (<VARIABLE>
+    {
+      var = new VarIdentifier();
+      var.setValue(token.image);
+      paramList.add(var);
+      getCurrentScope().addNewVarSymbolToScope(var);
+    }
+  ("," <VARIABLE>
+    {
+      var = new VarIdentifier();
+      var.setValue(token.image);
+      paramList.add(var);
+      getCurrentScope().addNewVarSymbolToScope(var);
+    }
+  )*)? <RIGHTPAREN> "{"
     {
       beginPos = token;
     } 
@@ -429,9 +449,8 @@
     {
       endPos = token;
       functionBody = extractFragment(beginPos.beginLine, beginPos.beginColumn, endPos.beginLine, endPos.beginColumn);
-      String dataverse = nameComponents.first.getValue();
-      String functionName = nameComponents.second.getValue();      
-      signature = new FunctionSignature(dataverse, functionName, paramList.size());
+      // TODO use fctName.library
+      signature = new FunctionSignature(fctName.dataverse, fctName.function, paramList.size());
       getCurrentScope().addFunctionDescriptor(signature, false);
       return new CreateFunctionStatement(signature, paramList, functionBody, ifNotExists);
     }
@@ -488,22 +507,34 @@
     }
 }
 
+String GetPolicy() throws ParseException:
+{
+  String policy = null;
+}
+{
+   "using" "policy" policy = Identifier() 
+   {
+     return policy;
+   }
+   
+}   
+
 FunctionSignature FunctionSignature() throws ParseException:
 {
-  Pair<Identifier,Identifier> pairId = null;
+  FunctionName fctName = null;
   int arity = 0;
 }
 {
-  pairId = FunctionOrTypeName() "@" <INTEGER_LITERAL> 
+  fctName = FunctionName() "@" <INTEGER_LITERAL> 
     {  
       arity = new Integer(token.image);
       if (arity < 0 && arity != FunctionIdentifier.VARARGS) {
         throw new ParseException(" invalid arity:" + arity);
       }
 
-      String dataverse = pairId.first.getValue();
-      String functionName = pairId.second.getValue(); 
-      return new FunctionSignature(dataverse, functionName, arity);
+      // TODO use fctName.library
+      String fqFunctionName = fctName.library == null ? fctName.function : fctName.library + "#" + fctName.function;
+      return new FunctionSignature(fctName.dataverse, fqFunctionName, arity);
     }
 }
 
@@ -551,7 +582,7 @@
       {
         stmt = new NodeGroupDropStatement(new Identifier(id), ifExists);
       }
-    | "type" pairId = FunctionOrTypeName() ifExists = IfExists()
+    | "type" pairId = TypeName() ifExists = IfExists()
       {
         stmt = new TypeDropStatement(pairId.first, pairId.second, ifExists);
       }
@@ -733,12 +764,13 @@
   Pair<Identifier,Identifier> nameComponents = null;
   Map<String,String> configuration = null;
   Statement stmt = null;
+  String policy = null;
 }
 {
   (
-    "begin" "feed" nameComponents = QualifiedName()
+    "begin" "feed" nameComponents = QualifiedName()  (policy = GetPolicy())? 
       {
-        stmt = new BeginFeedStatement(nameComponents.first, nameComponents.second, getVarCounter());
+        stmt = new BeginFeedStatement(nameComponents.first, nameComponents.second, policy, getVarCounter());
       }
     | "suspend" "feed" nameComponents = QualifiedName()
       {
@@ -990,8 +1022,46 @@
   }
 }
 
+FunctionName FunctionName() throws ParseException:
+{
+  String first = null;
+  String second = null;
+  String third = null;
+  boolean secondAfterDot = false;
+}
+{
+  first = Identifier() ( "." second = Identifier()
+    {
+      secondAfterDot = true;
+    }
+  ("#" third = Identifier())? | "#" second = Identifier() )?
+    {
+      FunctionName result = new FunctionName();
+      if (second == null) {
+        result.dataverse = defaultDataverse;
+        result.library   = null;
+        result.function  = first;
+      } else if (third == null) {
+        if (secondAfterDot) {
+          result.dataverse = first;
+          result.library   = null;
+          result.function  = second;
+        } else {
+          result.dataverse = defaultDataverse;
+          result.library   = first;
+          result.function  = second;
+        }
+      } else {
+        result.dataverse = first;
+        result.library   = second;
+        result.function  = third;
+      }
+      return result;
+    }  
+}
 
-Pair<Identifier,Identifier> FunctionOrTypeName() throws ParseException:
+
+Pair<Identifier,Identifier> TypeName() throws ParseException:
 {
   Pair<Identifier,Identifier> name = null;
 }
@@ -1648,18 +1718,12 @@
   List<Expression> argList = new ArrayList<Expression>();
   Expression tmp;
   int arity = 0;
-  Pair<Identifier,Identifier> funcId = null;
-  String funcName;
-  String dataverse;
+  FunctionName funcName = null;
   String hint = null;
-  String id1 = null;
-  String id2 = null;
 }
 {  
-  funcId = FunctionOrTypeName()
+  funcName = FunctionName()
     {
-      dataverse = funcId.first.getValue();
-      funcName = funcId.second.getValue();
       hint = getHint(token);
     }
   <LEFTPAREN> (tmp = Expression()
@@ -1674,9 +1738,12 @@
     }
   )*)? <RIGHTPAREN>
     {
-      FunctionSignature signature = lookupFunctionSignature(dataverse, funcName, arity);
+      // TODO use funcName.library
+      String fqFunctionName = funcName.library == null ? funcName.function : funcName.library + "#" + funcName.function;
+      FunctionSignature signature
+        = lookupFunctionSignature(funcName.dataverse, fqFunctionName, arity);
       if (signature == null) {
-        signature = new FunctionSignature(dataverse, funcName, arity);
+        signature = new FunctionSignature(funcName.dataverse, fqFunctionName, arity);
       }
       callExpr = new CallExpr(signature,argList);
       if (hint != null && hint.startsWith(INDEXED_NESTED_LOOP_JOIN_HINT)) {
@@ -1686,6 +1753,7 @@
     }
 }
 
+
 Expression DatasetAccessExpression() throws ParseException:
 {
   String funcName;
diff --git a/asterix-common/pom.xml b/asterix-common/pom.xml
index 7d1786e..8697ef3 100644
--- a/asterix-common/pom.xml
+++ b/asterix-common/pom.xml
@@ -1,18 +1,14 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
@@ -70,6 +66,40 @@
 							<generateDirectory>${project.build.directory}/generated-sources/configuration</generateDirectory>
 						</configuration>
 					</execution>
+					<execution>
+						<id>cluster</id>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+						<configuration>
+							<args>
+								<arg>-Xsetters</arg>
+								<arg>-Xvalue-constructor</arg>
+							</args>
+							<plugins>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-basics</artifactId>
+									<version>0.6.2</version>
+								</plugin>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-value-constructor</artifactId>
+									<version>3.0</version>
+								</plugin>
+							</plugins>
+							<schemaDirectory>src/main/resources/schema</schemaDirectory>
+							<schemaIncludes>
+								<include>cluster.xsd</include>
+							</schemaIncludes>
+							<generatePackage>edu.uci.ics.asterix.event.schema.cluster</generatePackage>
+							<generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
+							<bindingDirectory>src/main/resources/schema</bindingDirectory>
+							<bindingIncludes>
+								<bindingInclude>jaxb-bindings.xjb</bindingInclude>
+							</bindingIncludes>
+						</configuration>
+					</execution>
 				</executions>
 			</plugin>
 			<plugin>
@@ -94,6 +124,16 @@
 
 	<dependencies>
 		<dependency>
+			<groupId>commons-io</groupId>
+			<artifactId>commons-io</artifactId>
+			<version>1.4</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-httpclient</groupId>
+			<artifactId>commons-httpclient</artifactId>
+			<version>3.0.1</version>
+		</dependency>
+		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
@@ -116,6 +156,14 @@
 			<artifactId>hyracks-storage-am-lsm-common</artifactId>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-common</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-api</artifactId>
+		</dependency>
+		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-test-framework</artifactId>
 			<version>0.8.1-SNAPSHOT</version>
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixExternalProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixExternalProperties.java
index e975f60..98c7c91 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixExternalProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixExternalProperties.java
@@ -27,6 +27,12 @@
     private static final String EXTERNAL_APISERVER_KEY = "api.port";
     private static int EXTERNAL_APISERVER_DEFAULT = 19002;
 
+    private static final String EXTERNAL_CC_JAVA_OPTS_KEY = "cc.java.opts";
+    private static String EXTERNAL_CC_JAVA_OPTS_DEFAULT = "-Xmx1024m";
+
+    private static final String EXTERNAL_NC_JAVA_OPTS_KEY = "nc.java.opts";
+    private static String EXTERNAL_NC_JAVA_OPTS_DEFAULT = "-Xmx1024m";
+
     public AsterixExternalProperties(AsterixPropertiesAccessor accessor) {
         super(accessor);
     }
@@ -45,4 +51,14 @@
         return accessor.getProperty(EXTERNAL_LOGLEVEL_KEY, EXTERNAL_LOGLEVEL_DEFAULT,
                 PropertyInterpreters.getLevelPropertyInterpreter());
     }
+
+    public String getNCJavaParams() {
+        return accessor.getProperty(EXTERNAL_NC_JAVA_OPTS_KEY, EXTERNAL_NC_JAVA_OPTS_DEFAULT,
+                PropertyInterpreters.getStringPropertyInterpreter());
+    }
+
+    public String getCCJavaParams() {
+        return accessor.getProperty(EXTERNAL_CC_JAVA_OPTS_KEY, EXTERNAL_CC_JAVA_OPTS_DEFAULT,
+                PropertyInterpreters.getStringPropertyInterpreter());
+    }
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixMetadataProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixMetadataProperties.java
index 323f5f8..1d68dfc 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixMetadataProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixMetadataProperties.java
@@ -23,6 +23,10 @@
         super(accessor);
     }
 
+    public String getInstanceName() {
+        return accessor.getInstanceName();
+    }
+
     public String getMetadataNodeName() {
         return accessor.getMetadataNodeName();
     }
@@ -38,9 +42,12 @@
     public Set<String> getNodeNames() {
         return accessor.getNodeNames();
     }
-    
-    public String getCoredumpPath(String nodeId){
+
+    public String getCoredumpPath(String nodeId) {
         return accessor.getCoredumpPath(nodeId);
     }
 
+    public Map<String, String> getCoredumpPaths() {
+        return accessor.getCoredumpConfig();
+    }
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixPropertiesAccessor.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixPropertiesAccessor.java
index 2bd292e..7654aa3 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixPropertiesAccessor.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixPropertiesAccessor.java
@@ -39,6 +39,7 @@
 public class AsterixPropertiesAccessor {
     private static final Logger LOGGER = Logger.getLogger(AsterixPropertiesAccessor.class.getName());
 
+    private final String instanceName;
     private final String metadataNodeName;
     private final Set<String> nodeNames;
     private final Map<String, String[]> stores;
@@ -69,6 +70,7 @@
         } catch (JAXBException e) {
             throw new AsterixException("Failed to read configuration file " + fileName);
         }
+        instanceName = asterixConfiguration.getInstanceName();
         metadataNodeName = asterixConfiguration.getMetadataNode();
         stores = new HashMap<String, String[]>();
         List<Store> configuredStores = asterixConfiguration.getStore();
@@ -113,8 +115,26 @@
         return coredumpConfig.get(nodeId);
     }
 
-    public String getTransactionLogDir(String nodeId) {
-        return transactionLogDirs.get(nodeId);
+    public Map<String, String> getTransactionLogDirs() {
+        return transactionLogDirs;
+    }
+
+    public Map<String, String> getCoredumpConfig() {
+        return coredumpConfig;
+    }
+
+    public void putCoredumpPaths(String nodeId, String coredumpPath) {
+        if (coredumpConfig.containsKey(nodeId)) {
+            throw new IllegalStateException("Cannot override value for coredump path");
+        }
+        coredumpConfig.put(nodeId, coredumpPath);
+    }
+
+    public void putTransactionLogDir(String nodeId, String txnLogDir) {
+        if (transactionLogDirs.containsKey(nodeId)) {
+            throw new IllegalStateException("Cannot override value for txnLogDir");
+        }
+        transactionLogDirs.put(nodeId, txnLogDir);
     }
 
     public <T> T getProperty(String property, T defaultValue, IPropertyInterpreter<T> interpreter) {
@@ -137,4 +157,9 @@
                     + "'.\n See the description: \n" + p.getDescription() + "\nDefault = " + defaultValue);
         }
     }
+
+    public String getInstanceName() {
+        return instanceName;
+    }
+
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
index 6fa5beb..6094a27 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
@@ -14,6 +14,8 @@
  */
 package edu.uci.ics.asterix.common.config;
 
+import java.util.Map;
+
 public class AsterixTransactionProperties extends AbstractAsterixProperties {
 
     private static final String TXN_LOG_BUFFER_NUMPAGES_KEY = "txn.log.buffer.numpages";
@@ -57,7 +59,11 @@
     }
 
     public String getLogDirectory(String nodeId) {
-        return accessor.getTransactionLogDir(nodeId);
+        return accessor.getTransactionLogDirs().get(nodeId);
+    }
+
+    public Map<String, String> getLogDirectories() {
+        return accessor.getTransactionLogDirs();
     }
 
     public int getLogBufferNumPages() {
diff --git a/asterix-common/src/main/resources/schema/asterix-conf.xsd b/asterix-common/src/main/resources/schema/asterix-conf.xsd
index f461723..3033893 100644
--- a/asterix-common/src/main/resources/schema/asterix-conf.xsd
+++ b/asterix-common/src/main/resources/schema/asterix-conf.xsd
@@ -5,7 +5,8 @@
 
 	<!-- definition of simple types -->
 
-        
+
+	<xs:element name="instanceName" type="xs:string" />
 	<xs:element name="metadataNode" type="xs:string" />
 	<xs:element name="coredumpPath" type="xs:string" />
 	<xs:element name="storeDirs" type="xs:string" />
@@ -13,9 +14,9 @@
 	<xs:element name="name" type="xs:string" />
 	<xs:element name="value" type="xs:string" />
 	<xs:element name="description" type="xs:string" />
-    <xs:element name="txnLogDirPath" type="xs:string" />
-	
-	
+	<xs:element name="txnLogDirPath" type="xs:string" />
+
+
 	<!-- definition of complex elements -->
 	<xs:element name="store">
 		<xs:complexType>
@@ -34,7 +35,7 @@
 			</xs:sequence>
 		</xs:complexType>
 	</xs:element>
-	
+
 	<xs:element name="transactionLogDir">
 		<xs:complexType>
 			<xs:sequence>
@@ -58,10 +59,11 @@
 	<xs:element name="asterixConfiguration">
 		<xs:complexType>
 			<xs:sequence>
-				<xs:element ref="mg:metadataNode" minOccurs="0"/>
+				<xs:element ref="mg:instanceName" minOccurs="0" />
+				<xs:element ref="mg:metadataNode" minOccurs="0" />
 				<xs:element ref="mg:store" maxOccurs="unbounded" />
 				<xs:element ref="mg:coredump" maxOccurs="unbounded" />
-				<xs:element ref="mg:transactionLogDir" maxOccurs="unbounded"/>
+				<xs:element ref="mg:transactionLogDir" maxOccurs="unbounded" />
 				<xs:element ref="mg:property" minOccurs="0" maxOccurs="unbounded" />
 			</xs:sequence>
 		</xs:complexType>
diff --git a/asterix-events/src/main/resources/schema/cluster.xsd b/asterix-common/src/main/resources/schema/cluster.xsd
similarity index 81%
rename from asterix-events/src/main/resources/schema/cluster.xsd
rename to asterix-common/src/main/resources/schema/cluster.xsd
index f0d5bd9..55e6664 100644
--- a/asterix-events/src/main/resources/schema/cluster.xsd
+++ b/asterix-common/src/main/resources/schema/cluster.xsd
@@ -3,7 +3,8 @@
 	xmlns:cl="cluster" targetNamespace="cluster" elementFormDefault="qualified">
 
 	<!-- definition of simple types -->
-	<xs:element name="name" type="xs:string" />
+	<xs:element name="instance_name" type="xs:string" />
+	<xs:element name="cluster_name" type="xs:string" />
 	<xs:element name="log_dir" type="xs:string" />
 	<xs:element name="txn_log_dir" type="xs:string" />
 	<xs:element name="id" type="xs:string" />
@@ -21,6 +22,8 @@
 	<xs:element name="client_port" type="xs:integer" />
 	<xs:element name="cluster_port" type="xs:integer" />
 	<xs:element name="http_port" type="xs:integer" />
+	<xs:element name="debug_port" type="xs:integer" />
+	
 
 	<!-- definition of complex elements -->
 	<xs:element name="working_dir">
@@ -40,9 +43,10 @@
 				<xs:element ref="cl:cluster_ip" />
 				<xs:element ref="cl:java_home" minOccurs="0" />
 				<xs:element ref="cl:log_dir" minOccurs="0" />
-				<xs:element ref="cl:client_port"  />
-				<xs:element ref="cl:cluster_port"  />
-				<xs:element ref="cl:http_port"  />
+				<xs:element ref="cl:client_port" />
+				<xs:element ref="cl:cluster_port" />
+				<xs:element ref="cl:http_port" />
+				<xs:element ref="cl:debug_port" minOccurs="0" />
 			</xs:sequence>
 		</xs:complexType>
 	</xs:element>
@@ -74,6 +78,15 @@
 				<xs:element ref="cl:txn_log_dir" minOccurs="0" />
 				<xs:element ref="cl:store" minOccurs="0" />
 				<xs:element ref="cl:iodevices" minOccurs="0" />
+				<xs:element ref="cl:debug_port" minOccurs="0" />
+			</xs:sequence>
+		</xs:complexType>
+	</xs:element>
+
+	<xs:element name="substitute_nodes">
+		<xs:complexType>
+			<xs:sequence>
+				<xs:element ref="cl:node" maxOccurs="unbounded" />
 			</xs:sequence>
 		</xs:complexType>
 	</xs:element>
@@ -81,7 +94,8 @@
 	<xs:element name="cluster">
 		<xs:complexType>
 			<xs:sequence>
-				<xs:element ref="cl:name" />
+				<xs:element ref="cl:instance_name" />
+				<xs:element ref="cl:cluster_name" />
 				<xs:element ref="cl:username" />
 				<xs:element ref="cl:env" minOccurs="0" />
 				<xs:element ref="cl:java_home" minOccurs="0" />
@@ -92,6 +106,7 @@
 				<xs:element ref="cl:working_dir" />
 				<xs:element ref="cl:master_node" />
 				<xs:element ref="cl:node" maxOccurs="unbounded" />
+				<xs:element ref="cl:substitute_nodes" />
 			</xs:sequence>
 		</xs:complexType>
 	</xs:element>
diff --git a/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestHelper.java b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestHelper.java
new file mode 100644
index 0000000..5777d0a
--- /dev/null
+++ b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestHelper.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.test.aql;
+
+import java.util.List;
+
+public final class TestHelper {
+
+    public static boolean isInPrefixList(List<String> prefixList, String s) {
+        for (String s2 : prefixList) {
+            if (s.startsWith(s2)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}
diff --git a/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
index 88c65ff..9640bfe 100644
--- a/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
+++ b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
@@ -369,6 +369,7 @@
                     }
 
                 } catch (Exception e) {
+                    e.printStackTrace();
                     if (cUnit.getExpectedError().isEmpty()) {
                         throw new Exception("Test \"" + testFile + "\" FAILED!", e);
                     }
diff --git a/asterix-events/pom.xml b/asterix-events/pom.xml
index f221df2..8457198 100644
--- a/asterix-events/pom.xml
+++ b/asterix-events/pom.xml
@@ -1,196 +1,207 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-          <artifactId>asterix</artifactId>
-          <groupId>edu.uci.ics.asterix</groupId>
-          <version>0.8.1-SNAPSHOT</version>
-  </parent>
-  <groupId>edu.uci.ics.asterix</groupId>
-  <artifactId>asterix-events</artifactId>
-  <version>0.8.1-SNAPSHOT</version>
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
 
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<artifactId>asterix</artifactId>
+		<groupId>edu.uci.ics.asterix</groupId>
+		<version>0.8.1-SNAPSHOT</version>
+	</parent>
+	<groupId>edu.uci.ics.asterix</groupId>
+	<artifactId>asterix-events</artifactId>
+	<version>0.8.1-SNAPSHOT</version>
 
-  <build>
-    <plugins>
-       <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-compiler-plugin</artifactId>
-          <version>2.0.2</version>
-          <configuration>
-             <source>1.6</source>
-             <target>1.6</target>
-          </configuration>
-       </plugin>
-       <plugin>
-          <groupId>org.jvnet.jaxb2.maven2</groupId>
-          <artifactId>maven-jaxb2-plugin</artifactId>
-          <executions>
-            <execution>
-              <id>event</id>
-              <goals>
-                <goal>generate</goal>
-              </goals>
-              <configuration>
-                <args>
-                  <arg>-Xsetters</arg>
-                  <arg>-Xvalue-constructor</arg>
-                </args>
-                <plugins>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-basics</artifactId>
-                    <version>0.6.2</version>
-                  </plugin>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-value-constructor</artifactId>
-                    <version>3.0</version>
-                  </plugin>
-                </plugins>
-                <schemaDirectory>src/main/resources/schema</schemaDirectory>
-                <schemaIncludes>
-	          <include>event.xsd</include>
-	        </schemaIncludes>
-                <generatePackage>edu.uci.ics.asterix.event.schema.event</generatePackage>
-                <generateDirectory>${project.build.directory}/generated-sources/event</generateDirectory>
-              </configuration>
-            </execution>
-            <execution>
-              <id>pattern</id>
-              <goals>
-                <goal>generate</goal>
-              </goals>
-              <configuration>
-                <args>
-                  <arg>-Xsetters</arg>
-                  <arg>-Xvalue-constructor</arg>
-                </args>
-                <plugins>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-basics</artifactId>
-                    <version>0.6.2</version>
-                  </plugin>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-value-constructor</artifactId>
-                    <version>3.0</version>
-                  </plugin>
-                </plugins>
-                <schemaDirectory>src/main/resources/schema</schemaDirectory>
-                <schemaIncludes>
-	          <include>pattern.xsd</include>
-	        </schemaIncludes>
-                <generatePackage>edu.uci.ics.asterix.event.schema.pattern</generatePackage>
-                <generateDirectory>${project.build.directory}/generated-sources/pattern</generateDirectory>
-              </configuration>
-            </execution>
-            <execution>
-              <id>cluster</id>
-              <goals>
-                <goal>generate</goal>
-              </goals>
-              <configuration>
-                <args>
-                  <arg>-Xsetters</arg>
-                  <arg>-Xvalue-constructor</arg>
-                </args>
-                <plugins>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-basics</artifactId>
-                    <version>0.6.2</version>
-                  </plugin>
-                  <plugin>
-                    <groupId>org.jvnet.jaxb2_commons</groupId>
-                    <artifactId>jaxb2-value-constructor</artifactId>
-                    <version>3.0</version>
-                  </plugin>
-                </plugins>
-                <schemaDirectory>src/main/resources/schema</schemaDirectory>
-                <schemaIncludes>
-	          <include>cluster.xsd</include>
-	        </schemaIncludes>
-                <generatePackage>edu.uci.ics.asterix.event.schema.cluster</generatePackage>
-                <generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
-                <bindingDirectory>src/main/resources/schema</bindingDirectory>
-                <bindingIncludes>
-                  <bindingInclude>jaxb-bindings.xjb</bindingInclude>
-                </bindingIncludes>
-              </configuration>
-            </execution>
-          </executions>
-       </plugin>
-       <plugin>
-         <artifactId>maven-assembly-plugin</artifactId>
-         <version>2.2-beta-2</version>
-         <executions>
-           <execution>
-             <configuration>
-               <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
-             </configuration>
-             <phase>package</phase>
-             <goals>
-               <goal>attached</goal>
-             </goals>
-           </execution>
-         </executions>
-       </plugin>
-    </plugins>
-  </build>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
 
-  <dependencies>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.8.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>args4j</groupId>
-      <artifactId>args4j</artifactId>
-      <version>2.0.12</version>
-      <type>jar</type>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.jvnet.jaxb2_commons</groupId>
-      <artifactId>jaxb2-value-constructor</artifactId>
-      <version>3.0</version>
-    </dependency>
-    <dependency>
-      <groupId>commons-io</groupId>
-      <artifactId>commons-io</artifactId>
-      <version>1.4</version>
-    </dependency>
-   <dependency>
-     <groupId>edu.uci.ics.asterix</groupId>
-     <artifactId>asterix-common</artifactId>
-     <version>0.8.1-SNAPSHOT</version>
-     <type>jar</type>
-     <scope>compile</scope>
-    </dependency>
-   <dependency>
-   	<groupId>log4j</groupId>
-   	<artifactId>log4j</artifactId>
-   	<version>1.2.9</version>
-   </dependency>
-  </dependencies>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.jvnet.jaxb2.maven2</groupId>
+				<artifactId>maven-jaxb2-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>event</id>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+						<configuration>
+							<args>
+								<arg>-Xsetters</arg>
+								<arg>-Xvalue-constructor</arg>
+							</args>
+							<plugins>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-basics</artifactId>
+									<version>0.6.2</version>
+								</plugin>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-value-constructor</artifactId>
+									<version>3.0</version>
+								</plugin>
+							</plugins>
+							<schemaDirectory>src/main/resources/schema</schemaDirectory>
+							<schemaIncludes>
+								<include>event.xsd</include>
+							</schemaIncludes>
+							<generatePackage>edu.uci.ics.asterix.event.schema.event</generatePackage>
+							<generateDirectory>${project.build.directory}/generated-sources/event</generateDirectory>
+						</configuration>
+					</execution>
+					<execution>
+						<id>configuration</id>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+						<configuration>
+							<args>
+								<arg>-Xsetters</arg>
+								<arg>-Xvalue-constructor</arg>
+							</args>
+							<plugins>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-basics</artifactId>
+									<version>0.6.2</version>
+								</plugin>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-value-constructor</artifactId>
+									<version>3.0</version>
+								</plugin>
+							</plugins>
+							<schemaDirectory>src/main/resources/schema</schemaDirectory>
+							<schemaIncludes>
+								<include>installer-conf.xsd</include>
+							</schemaIncludes>
+							<generatePackage>edu.uci.ics.asterix.installer.schema.conf</generatePackage>
+							<generateDirectory>${project.build.directory}/generated-sources/configuration</generateDirectory>
+						</configuration>
+					</execution>
+					<execution>
+						<id>pattern</id>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+						<configuration>
+							<args>
+								<arg>-Xsetters</arg>
+								<arg>-Xvalue-constructor</arg>
+							</args>
+							<plugins>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-basics</artifactId>
+									<version>0.6.2</version>
+								</plugin>
+								<plugin>
+									<groupId>org.jvnet.jaxb2_commons</groupId>
+									<artifactId>jaxb2-value-constructor</artifactId>
+									<version>3.0</version>
+								</plugin>
+							</plugins>
+							<schemaDirectory>src/main/resources/schema</schemaDirectory>
+							<schemaIncludes>
+								<include>pattern.xsd</include>
+							</schemaIncludes>
+							<generatePackage>edu.uci.ics.asterix.event.schema.pattern</generatePackage>
+							<generateDirectory>${project.build.directory}/generated-sources/pattern</generateDirectory>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<artifactId>maven-assembly-plugin</artifactId>
+				<version>2.2-beta-2</version>
+				<executions>
+					<execution>
+						<configuration>
+							<descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+						</configuration>
+						<phase>package</phase>
+						<goals>
+							<goal>attached</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.8.1</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>args4j</groupId>
+			<artifactId>args4j</artifactId>
+			<version>2.0.12</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.jvnet.jaxb2_commons</groupId>
+			<artifactId>jaxb2-value-constructor</artifactId>
+			<version>3.0</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-io</groupId>
+			<artifactId>commons-io</artifactId>
+			<version>1.4</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.zookeeper</groupId>
+			<artifactId>zookeeper</artifactId>
+			<version>3.4.5</version>
+			<exclusions>
+				<exclusion>
+					<groupId>com.sun.jmx</groupId>
+					<artifactId>jmxri</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>com.sun.jdmk</groupId>
+					<artifactId>jmxtools</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>javax.jms</groupId>
+					<artifactId>jms</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-common</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>log4j</groupId>
+			<artifactId>log4j</artifactId>
+			<version>1.2.9</version>
+		</dependency>
+	</dependencies>
 </project>
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
index 641b37b..2317cfa 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
@@ -29,7 +29,7 @@
 
 import edu.uci.ics.asterix.event.management.DefaultOutputHandler;
 import edu.uci.ics.asterix.event.management.EventUtil;
-import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
 import edu.uci.ics.asterix.event.management.IOutputHandler;
 import edu.uci.ics.asterix.event.management.Randomizer;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
@@ -41,7 +41,7 @@
 public class EventDriver {
 
     public static final String CLIENT_NODE_ID = "client_node";
-    public static final Node CLIENT_NODE = new Node(CLIENT_NODE_ID, "127.0.0.1", null, null, null, null, null);
+    public static final Node CLIENT_NODE = new Node(CLIENT_NODE_ID, "127.0.0.1", null, null, null, null, null, null);
 
     private static String eventsDir;
     private static Events events;
@@ -87,15 +87,6 @@
 
     }
 
-    public static EventrixClient getClient(String eventsDir, Cluster cluster, boolean dryRun) throws Exception {
-        return new EventrixClient(eventsDir, cluster, dryRun, new DefaultOutputHandler());
-    }
-
-    public static EventrixClient getClient(String eventsDir, Cluster cluster, boolean dryRun,
-            IOutputHandler outputHandler) throws Exception {
-        return new EventrixClient(eventsDir, cluster, dryRun, outputHandler);
-    }
-
     public static void main(String[] args) throws Exception {
         String eventsHome = System.getenv("EVENT_HOME");
         if (eventsHome == null) {
@@ -119,9 +110,9 @@
             if (!eventConfig.dryRun) {
                 prepare(cluster);
             }
-            EventrixClient client = new EventrixClient(eventsDir, cluster, eventConfig.dryRun,
-                    new DefaultOutputHandler());
-            client.submit(patterns);
+            //AsterixEventServiceClient client = new AsterixEventServiceClient(eventsDir, cluster, eventConfig.dryRun,
+            //      new DefaultOutputHandler());
+            // client.submit(patterns);
             if (!eventConfig.dryRun) {
                 cleanup(cluster);
             }
@@ -156,4 +147,5 @@
         }
         EventUtil.executeLocalScript(clientNode, eventsDir + "/" + "events" + "/" + "cleanup.sh", args);
     }
+
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/EventException.java
similarity index 74%
rename from asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/error/EventException.java
index af46e63..83ed5f4 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/EventException.java
@@ -12,12 +12,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.event.xml;
+package edu.uci.ics.asterix.event.error;
 
-public class PatternParser {
+public class EventException extends Exception {
 
-	public static void parsePattern(String path){
-		
-	}
+    private static final long serialVersionUID = 1L;
+
+    public EventException(String message) {
+        super(message);
+    }
+
 }
-
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/OutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/OutputHandler.java
new file mode 100644
index 0000000..3bc795a
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/OutputHandler.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.error;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+import edu.uci.ics.asterix.event.management.IOutputHandler;
+import edu.uci.ics.asterix.event.management.OutputAnalysis;
+import edu.uci.ics.asterix.event.model.EventList.EventType;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+
+public class OutputHandler implements IOutputHandler {
+
+    public static IOutputHandler INSTANCE = new OutputHandler();
+
+    private OutputHandler() {
+
+    }
+
+    public OutputAnalysis reportEventOutput(Event event, String output) {
+
+        EventType eventType = EventType.valueOf(event.getType().toUpperCase());
+        boolean ignore = true;
+        String trimmedOutput = output.trim();
+        StringBuffer errorMessage = new StringBuffer();
+        switch (eventType) {
+            case FILE_TRANSFER:
+                if (trimmedOutput.length() > 0) {
+                    if (output.contains("Permission denied") || output.contains("cannot find or open")) {
+                        ignore = false;
+                        break;
+                    }
+                }
+                break;
+
+            case BACKUP:
+            case RESTORE:
+                if (trimmedOutput.length() > 0) {
+                    if (trimmedOutput.contains("AccessControlException")) {
+                        errorMessage.append("Insufficient permissions on back up directory");
+                        ignore = false;
+                    }
+                    if (output.contains("does not exist") || output.contains("File exist")
+                            || (output.contains("No such file or directory"))) {
+                        ignore = true;
+                    } else {
+                        ignore = false;
+                    }
+                }
+                break;
+
+            case NODE_INFO:
+                Properties p = new Properties();
+                try {
+                    p.load(new ByteArrayInputStream(trimmedOutput.getBytes()));
+                } catch (IOException e) {
+                }
+                String javaVersion = (String) p.get("java_version");
+                if (p.get("java_version") == null) {
+                    errorMessage.append("Java not installed on " + event.getNodeid().getValue().getAbsvalue());
+                    ignore = false;
+                } else if (!javaVersion.contains("1.7")) {
+                    errorMessage.append("Asterix requires Java 1.7.x. Incompatible version found on  "
+                            + event.getNodeid().getValue().getAbsvalue() + "\n");
+                    ignore = false;
+                }
+                break;
+        }
+        if (ignore) {
+            return new OutputAnalysis(true, null);
+        } else {
+            return new OutputAnalysis(false, errorMessage.toString());
+        }
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
similarity index 78%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
index 5be3f89..b329171 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2013 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,30 +12,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.error;
+package edu.uci.ics.asterix.event.error;
 
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.model.ProcessInfo;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
-import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
-import edu.uci.ics.asterix.installer.model.ProcessInfo;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
 
 public class VerificationUtil {
 
-	private static final String VERIFY_SCRIPT_PATH = InstallerDriver
-			.getManagixHome()
-			+ File.separator
-			+ InstallerDriver.MANAGIX_INTERNAL_DIR
+	private static final String VERIFY_SCRIPT_PATH = AsterixEventService
+			.getEventHome()
 			+ File.separator
 			+ "scripts"
-			+ File.separator + "verify.sh";
+			+ File.separator
+			+ "verify.sh";
 
 	public static AsterixRuntimeState getAsterixRuntimeState(
 			AsterixInstance instance) throws Exception {
@@ -49,8 +48,8 @@
 			args.add(instance.getName() + "_" + node.getId());
 		}
 		Thread.sleep(2000);
-		String output = InstallerUtil.executeLocalScript(VERIFY_SCRIPT_PATH,
-				args);
+		String output = AsterixEventServiceUtil.executeLocalScript(
+				VERIFY_SCRIPT_PATH, args);
 		boolean ccRunning = true;
 		List<String> failedNCs = new ArrayList<String>();
 		String[] infoFields;
@@ -97,10 +96,10 @@
 				for (String failedNC : state.getFailedNCs()) {
 					summary.append(failedNC + "\n");
 				}
-				instance.setState(State.UNUSABLE);
+				// instance.setState(State.UNUSABLE);
 			}
 			if (!(instance.getState().equals(State.UNUSABLE))) {
-				instance.setState(State.ACTIVE);
+				 instance.setState(State.ACTIVE);
 			}
 		} else {
 			if (state.getProcesses() != null && state.getProcesses().size() > 0) {
@@ -108,9 +107,9 @@
 				for (ProcessInfo pInfo : state.getProcesses()) {
 					summary.append(pInfo + "\n");
 				}
-				instance.setState(State.UNUSABLE);
+				// instance.setState(State.UNUSABLE);
 			} else {
-				instance.setState(State.INACTIVE);
+				// instance.setState(State.INACTIVE);
 			}
 		}
 		state.setSummary(summary.toString());
@@ -130,9 +129,7 @@
 			errorCheck.append("\n HDFS backup directory not configured");
 		}
 		if (errorCheck.length() > 0) {
-			throw new Exception("Incomplete hdfs configuration in "
-					+ InstallerDriver.getManagixHome() + File.separator
-					+ InstallerDriver.MANAGIX_CONF_XML + errorCheck);
+			throw new Exception("Incomplete hdfs configuration" + errorCheck);
 		}
 	}
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/AsterixEventServiceClient.java
similarity index 65%
rename from asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/management/AsterixEventServiceClient.java
index 03f4061..5054aa4 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/AsterixEventServiceClient.java
@@ -16,6 +16,7 @@
 
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.LinkedBlockingQueue;
@@ -24,6 +25,7 @@
 
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 
 import edu.uci.ics.asterix.event.driver.EventDriver;
@@ -35,10 +37,12 @@
 import edu.uci.ics.asterix.event.schema.pattern.Pattern;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
 import edu.uci.ics.asterix.event.schema.pattern.Value;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
 
-public class EventrixClient {
+public class AsterixEventServiceClient {
 
-    private static final Logger LOGGER = Logger.getLogger(EventrixClient.class.getName());
+    private static final Logger LOGGER = Logger.getLogger(AsterixEventServiceClient.class.getName());
 
     private EventTask[] tasks;
     private boolean dryRun = false;
@@ -48,21 +52,26 @@
     private IPatternListener listener;
     private IOutputHandler outputHandler;
     private Events events;
-    private String eventsDir;
+    private String eventsHomeDir;
+    private Configuration configuration;
 
-    public EventrixClient(String eventsDir, Cluster cluster, boolean dryRun, IOutputHandler outputHandler)
-            throws Exception {
-        this.eventsDir = eventsDir;
+    public AsterixEventServiceClient(Configuration configuration, String eventsHomeDir, Cluster cluster,
+            boolean transferArtifacts, boolean dryRun, IOutputHandler outputHandler) throws Exception {
+        this.eventsHomeDir = eventsHomeDir;
         this.events = initializeEvents();
         this.cluster = cluster;
         this.dryRun = dryRun;
+        this.configuration = configuration;
         this.outputHandler = outputHandler;
-        if (!dryRun) {
-            initializeCluster(eventsDir);
+        if (!dryRun && transferArtifacts) {
+            initializeCluster(getEventsDir());
         }
     }
 
     public void submit(Patterns patterns) throws Exception {
+        if (patterns.getPattern().isEmpty()) {
+            return;
+        }
         initTasks(patterns);
         try {
             waitForCompletion();
@@ -103,7 +112,7 @@
     }
 
     public String getEventsDir() {
-        return eventsDir;
+        return eventsHomeDir + File.separator + AsterixEventServiceUtil.EVENT_DIR;
     }
 
     public synchronized void notifyCompletion(EventTaskReport report) {
@@ -156,25 +165,34 @@
         submit(patterns);
     }
 
-	private Patterns initPattern(String eventsDir) {
-		Nodeid nodeid = new Nodeid(new Value(null,
-				EventDriver.CLIENT_NODE.getId()));
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		String workingDir = cluster.getWorkingDir().getDir();
-		String username = cluster.getUsername() == null ? System
-				.getProperty("user.name") : cluster.getUsername();
-		patternList.add(getDirectoryTransferPattern(username, eventsDir,
-				nodeid, cluster.getMasterNode().getClusterIp(), workingDir));
+    private Patterns initPattern(String eventsDir) throws Exception {
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String username = cluster.getUsername() == null ? System.getProperty("user.name") : cluster.getUsername();
+        patternList.add(getDirectoryTransferPattern(username, eventsDir, nodeid,
+                cluster.getMasterNode().getClusterIp(), workingDir));
 
-		if (!cluster.getWorkingDir().isNFS()) {
-			for (Node node : cluster.getNode()) {
-				patternList.add(getDirectoryTransferPattern(username,
-						eventsDir, nodeid, node.getClusterIp(), workingDir));
-			}
-		}
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        JAXBContext ctx = JAXBContext.newInstance(Configuration.class);
+        Marshaller marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        String outputPath = System.getProperty("user.dir") + File.separator + "conf" + File.separator
+                + "configuration.xml";
+        marshaller.marshal(configuration, new FileOutputStream(outputPath));
+
+        patternList.add(getFileTransferPattern(username, outputPath, nodeid, cluster.getMasterNode().getClusterIp(),
+                workingDir));
+
+        if (!cluster.getWorkingDir().isNFS()) {
+            for (Node node : cluster.getNode()) {
+                patternList.add(getDirectoryTransferPattern(username, eventsDir, nodeid, node.getClusterIp(),
+                        workingDir));
+
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
 
     private Pattern getDirectoryTransferPattern(String username, String src, Nodeid srcNode, String destNodeIp,
             String destDir) {
@@ -183,16 +201,27 @@
         return new Pattern(null, 1, null, event);
     }
 
+    private Pattern getFileTransferPattern(String username, String src, Nodeid srcNode, String destNodeIp,
+            String destDir) {
+        String pargs = username + " " + src + " " + destNodeIp + " " + destDir;
+        Event event = new Event("file_transfer", srcNode, pargs);
+        return new Pattern(null, 1, null, event);
+    }
+
     public IOutputHandler getErrorHandler() {
         return outputHandler;
     }
 
     private Events initializeEvents() throws JAXBException, FileNotFoundException {
-        File file = new File(eventsDir + File.separator + "events" + File.separator + "events.xml");
+        File file = new File(getEventsDir() + File.separator + "events.xml");
         JAXBContext eventCtx = JAXBContext.newInstance(Events.class);
         Unmarshaller unmarshaller = eventCtx.createUnmarshaller();
         events = (Events) unmarshaller.unmarshal(file);
         return events;
     }
 
+    public String getEventsHomeDir() {
+        return eventsHomeDir;
+    }
+
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
index d05c5ab..f7155f3 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
@@ -16,6 +16,7 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Event;
 
+
 public class DefaultOutputHandler implements IOutputHandler {
 
     @Override
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
index 45499f4..82b6e9e 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
@@ -23,11 +23,13 @@
 
 import org.apache.commons.io.IOUtils;
 
+import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.event.driver.EventDriver;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
 import edu.uci.ics.asterix.event.schema.cluster.Property;
 import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
 
 public class EventExecutor {
 
@@ -40,10 +42,11 @@
     private static final String DAEMON = "DAEMON";
 
     public void executeEvent(Node node, String script, List<String> args, boolean isDaemon, Cluster cluster,
-            Pattern pattern, IOutputHandler outputHandler, EventrixClient client) throws IOException {
+            Pattern pattern, IOutputHandler outputHandler, AsterixEventServiceClient client) throws IOException {
         List<String> pargs = new ArrayList<String>();
         pargs.add("/bin/bash");
-        pargs.add(client.getEventsDir() + File.separator + "scripts" + File.separator + EXECUTE_SCRIPT);
+        pargs.add(client.getEventsHomeDir() + File.separator + AsterixEventServiceUtil.EVENT_DIR + File.separator
+                + EXECUTE_SCRIPT);
         StringBuffer envBuffer = new StringBuffer(IP_LOCATION + "=" + node.getClusterIp() + " ");
         boolean isMasterNode = node.getId().equals(cluster.getMasterNode().getId());
 
@@ -60,6 +63,13 @@
                         if (javaOpts != null) {
                             builder.append(javaOpts);
                         }
+                        if (node.getDebugPort() != null) {
+                            int debugPort = node.getDebugPort().intValue();
+                            if (!javaOpts.contains("-Xdebug")) {
+                                builder.append((" "
+                                        + "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=" + debugPort));
+                            }
+                        }
                         builder.append("\"");
                         envBuffer.append("JAVA_OPTS" + "=" + builder + " ");
                     }
@@ -71,6 +81,13 @@
                         if (javaOpts != null) {
                             builder.append(javaOpts);
                         }
+                        if (node.getDebugPort() != null) {
+                            int debugPort = node.getDebugPort().intValue();
+                            if (!javaOpts.contains("-Xdebug")) {
+                                builder.append((" "
+                                        + "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=" + debugPort));
+                            }
+                        }
                         builder.append("\"");
                         envBuffer.append("JAVA_OPTS" + "=" + builder + " ");
                     }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
index a764f9a..f98230b 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
@@ -20,6 +20,7 @@
 import java.util.List;
 import java.util.Timer;
 import java.util.TimerTask;
+
 import org.apache.log4j.Logger;
 
 import edu.uci.ics.asterix.event.driver.EventDriver;
@@ -30,134 +31,124 @@
 
 public class EventTask extends TimerTask {
 
-	public static enum State {
-		INITIALIZED, IN_PROGRESS, COMPLETED, FAILED
-	}
+    public static enum State {
+        INITIALIZED,
+        IN_PROGRESS,
+        COMPLETED,
+        FAILED
+    }
 
-	private static final Logger logger = Logger.getLogger(EventTask.class
-			.getName());
+    private static final Logger logger = Logger.getLogger(EventTask.class.getName());
 
-	private Pattern pattern;
-	private Event event;
-	private long interval = 0;
-	private long initialDelay = 0;
-	private int maxOccurs = Integer.MAX_VALUE;
-	private int occurrenceCount = 0;
-	private Timer timer;
-	private String taskScript;
-	private Node location;
-	private List<String> taskArgs;
-	private EventrixClient client;
-	private List<Node> candidateLocations;
-	private boolean dynamicLocation = false;
-	private boolean reuseLocation = false;
-	private State state;
+    private Pattern pattern;
+    private Event event;
+    private long interval = 0;
+    private long initialDelay = 0;
+    private int maxOccurs = Integer.MAX_VALUE;
+    private int occurrenceCount = 0;
+    private Timer timer;
+    private String taskScript;
+    private Node location;
+    private List<String> taskArgs;
+    private AsterixEventServiceClient client;
+    private List<Node> candidateLocations;
+    private boolean dynamicLocation = false;
+    private boolean reuseLocation = false;
+    private State state;
 
-	
+    public EventTask(Pattern pattern, AsterixEventServiceClient client) {
+        this.pattern = pattern;
+        this.client = client;
+        Period period = pattern.getPeriod();
+        if (period != null && period.getAbsvalue() != null) {
+            this.interval = EventUtil.parseTimeInterval(period.getAbsvalue(), period.getUnit());
+        }
+        if (pattern.getDelay() != null) {
+            this.initialDelay = EventUtil.parseTimeInterval(new ValueType(pattern.getDelay().getValue()), pattern
+                    .getDelay().getUnit());
+        }
+        if (pattern.getMaxOccurs() != null) {
+            this.maxOccurs = pattern.getMaxOccurs();
+        }
+        this.timer = new Timer();
+        taskArgs = EventUtil.getEventArgs(pattern);
+        candidateLocations = EventUtil.getCandidateLocations(pattern, client.getCluster());
+        if (pattern.getEvent().getNodeid().getValue().getRandom() != null && period != null && maxOccurs > 1) {
+            dynamicLocation = true;
+            reuseLocation = pattern.getEvent().getNodeid().getValue().getRandom().getRange().isReuse();
+        } else {
+            location = EventUtil.getEventLocation(pattern, candidateLocations, client.getCluster());
+        }
+        String scriptsDir;
+        if (location.getId().equals(EventDriver.CLIENT_NODE_ID)) {
+            scriptsDir = client.getEventsDir();
+        } else {
+            scriptsDir = client.getCluster().getWorkingDir().getDir() + File.separator + "events";
+        }
+        event = EventUtil.getEvent(pattern, client.getEvents());
+        taskScript = scriptsDir + File.separator + event.getScript();
+        state = State.INITIALIZED;
+    }
 
-	public EventTask(Pattern pattern, EventrixClient client) {
-		this.pattern = pattern;
-		this.client = client;
-		Period period = pattern.getPeriod();
-		if (period != null && period.getAbsvalue() != null) {
-			this.interval = EventUtil.parseTimeInterval(period.getAbsvalue(),
-					period.getUnit());
-		}
-		if (pattern.getDelay() != null) {
-			this.initialDelay = EventUtil.parseTimeInterval(new ValueType(
-					pattern.getDelay().getValue()), pattern.getDelay()
-					.getUnit());
-		}
-		if (pattern.getMaxOccurs() != null) {
-			this.maxOccurs = pattern.getMaxOccurs();
-		}
-		this.timer = new Timer();
-		taskArgs = EventUtil.getEventArgs(pattern);
-		candidateLocations = EventUtil.getCandidateLocations(pattern,
-				client.getCluster());
-		if (pattern.getEvent().getNodeid().getValue().getRandom() != null
-				&& period != null && maxOccurs > 1) {
-			dynamicLocation = true;
-			reuseLocation = pattern.getEvent().getNodeid().getValue()
-					.getRandom().getRange().isReuse();
-		} else {
-			location = EventUtil.getEventLocation(pattern, candidateLocations,
-					client.getCluster());
-		}
-		String scriptsDir;
-		if (location.getId().equals(EventDriver.CLIENT_NODE_ID)) {
-			scriptsDir = client.getEventsDir() + File.separator + "events";
-		} else {
-			scriptsDir = client.getCluster().getWorkingDir().getDir()
-					+ File.separator + "eventrix" + File.separator + "events";
-		}
-		event = EventUtil.getEvent(pattern, client.getEvents());
-		taskScript = scriptsDir + File.separator + event.getScript();
-		state = State.INITIALIZED;
-	}
+    public void start() {
+        if (interval > 0) {
+            timer.schedule(this, initialDelay, interval);
+        } else {
+            timer.schedule(this, initialDelay);
+        }
+    }
 
-	public void start() {
-		if (interval > 0) {
-			timer.schedule(this, initialDelay, interval);
-		} else {
-			timer.schedule(this, initialDelay);
-		}
-	}
+    @Override
+    public void run() {
+        if (candidateLocations.size() == 0) {
+            timer.cancel();
+            client.notifyCompletion(new EventTaskReport(this));
+        } else {
+            if (dynamicLocation) {
+                location = EventUtil.getEventLocation(pattern, candidateLocations, client.getCluster());
+                if (!reuseLocation) {
+                    candidateLocations.remove(location);
+                }
+            }
 
-	@Override
-	public void run() {
-		if (candidateLocations.size() == 0) {
-			timer.cancel();
-			client.notifyCompletion(new EventTaskReport(this));
-		} else {
-			if (dynamicLocation) {
-				location = EventUtil.getEventLocation(pattern,
-						candidateLocations, client.getCluster());
-				if (!reuseLocation) {
-					candidateLocations.remove(location);
-				}
-			}
+            logger.debug(EventUtil.dateFormat.format(new Date()) + " " + "EVENT "
+                    + pattern.getEvent().getType().toUpperCase() + " at " + location.getId().toUpperCase());
+            try {
+                if (!client.isDryRun()) {
+                    new EventExecutor().executeEvent(location, taskScript, taskArgs, event.isDaemon(),
+                            client.getCluster(), pattern, client.getErrorHandler(), client);
+                }
+                occurrenceCount++;
+                if (occurrenceCount >= maxOccurs) {
+                    timer.cancel();
+                    client.notifyCompletion(new EventTaskReport(this));
+                }
+            } catch (IOException ioe) {
+                timer.cancel();
+                client.notifyCompletion(new EventTaskReport(this, false, ioe));
+            }
+        }
 
-			logger.debug(EventUtil.dateFormat.format(new Date()) + " "
-					+ "EVENT " + pattern.getEvent().getType().toUpperCase()
-					+ " at " + location.getId().toUpperCase());
-			try {
-				if (!client.isDryRun()) {
-					new EventExecutor().executeEvent(location, taskScript,
-							taskArgs, event.isDaemon(), client.getCluster(),
-							pattern, client.getErrorHandler(), client);
-				}
-				occurrenceCount++;
-				if (occurrenceCount >= maxOccurs) {
-					timer.cancel();
-					client.notifyCompletion(new EventTaskReport(this));
-				}
-			} catch (IOException ioe) {
-				timer.cancel();
-				client.notifyCompletion(new EventTaskReport(this, false, ioe));
-			}
-		}
+    }
 
-	}
+    public Node getLocation() {
+        return location;
+    }
 
-	public Node getLocation() {
-		return location;
-	}
+    public long getInterval() {
+        return interval;
+    }
 
-	public long getInterval() {
-		return interval;
-	}
+    public long getInitialDelay() {
+        return initialDelay;
+    }
 
-	public long getInitialDelay() {
-		return initialDelay;
-	}
+    public Pattern getPattern() {
+        return pattern;
+    }
 
-	public Pattern getPattern() {
-		return pattern;
-	}
-
-	public State getState() {
-		return state;
-	}
+    public State getState() {
+        return state;
+    }
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
index 887e272..49b7abf 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
@@ -16,7 +16,6 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.math.BigInteger;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
@@ -36,252 +35,232 @@
 
 public class EventUtil {
 
-	public static final String EVENTS_DIR = "events";
-	public static final String CLUSTER_CONF = "config/cluster.xml";
-	public static final String PATTERN_CONF = "config/pattern.xml";
-	public static final DateFormat dateFormat = new SimpleDateFormat(
-			"yyyy/MM/dd HH:mm:ss");
-	public static final String NC_JAVA_OPTS = "nc.java.opts";
-	public static final String CC_JAVA_OPTS = "cc.java.opts";
+    public static final String EVENTS_DIR = "events";
+    public static final String CLUSTER_CONF = "config/cluster.xml";
+    public static final String PATTERN_CONF = "config/pattern.xml";
+    public static final DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
+    public static final String NC_JAVA_OPTS = "nc.java.opts";
+    public static final String CC_JAVA_OPTS = "cc.java.opts";
 
-	private static final String IP_LOCATION = "IP_LOCATION";
-	private static final String CLUSTER_ENV = "ENV";
-	private static final String SCRIPT = "SCRIPT";
-	private static final String ARGS = "ARGS";
-	private static final String EXECUTE_SCRIPT = "events/execute.sh";
-	private static final String LOCALHOST = "localhost";
-	private static final String LOCALHOST_IP = "127.0.0.1";
+    private static final String IP_LOCATION = "IP_LOCATION";
+    private static final String CLUSTER_ENV = "ENV";
+    private static final String SCRIPT = "SCRIPT";
+    private static final String ARGS = "ARGS";
+    private static final String EXECUTE_SCRIPT = "events/execute.sh";
+    private static final String LOCALHOST = "localhost";
+    private static final String LOCALHOST_IP = "127.0.0.1";
 
-	public static Cluster getCluster(String clusterConfigurationPath)
-			throws JAXBException {
-		File file = new File(clusterConfigurationPath);
-		JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
-		Unmarshaller unmarshaller = ctx.createUnmarshaller();
-		Cluster cluster = (Cluster) unmarshaller.unmarshal(file);
-		if (cluster.getMasterNode().getClusterIp().equals(LOCALHOST)) {
-			cluster.getMasterNode().setClusterIp(LOCALHOST_IP);
-		}
-		for (Node node : cluster.getNode()) {
-			if (node.getClusterIp().equals(LOCALHOST)) {
-				node.setClusterIp(LOCALHOST_IP);
-			}
-		}
-		return cluster;
-	}
+    public static Cluster getCluster(String clusterConfigurationPath) throws JAXBException {
+        File file = new File(clusterConfigurationPath);
+        JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        Cluster cluster = (Cluster) unmarshaller.unmarshal(file);
+        if (cluster.getMasterNode().getClusterIp().equals(LOCALHOST)) {
+            cluster.getMasterNode().setClusterIp(LOCALHOST_IP);
+        }
+        for (Node node : cluster.getNode()) {
+            if (node.getClusterIp().equals(LOCALHOST)) {
+                node.setClusterIp(LOCALHOST_IP);
+            }
+        }
+        return cluster;
+    }
 
-	public static long parseTimeInterval(ValueType v, String unit)
-			throws IllegalArgumentException {
-		int val = 0;
-		switch (v.getType()) {
-		case ABS:
-			val = Integer.parseInt(v.getAbsoluteValue());
-			break;
-		case RANDOM_MIN_MAX:
-			val = Randomizer.getInstance().getRandomInt(v.getMin(), v.getMax());
-			break;
-		case RANDOM_RANGE:
-			String[] values = v.getRangeSet();
-			val = Integer.parseInt(values[Randomizer.getInstance()
-					.getRandomInt(0, values.length - 1)]);
-			break;
-		}
-		return computeInterval(val, unit);
-	}
+    public static long parseTimeInterval(ValueType v, String unit) throws IllegalArgumentException {
+        int val = 0;
+        switch (v.getType()) {
+            case ABS:
+                val = Integer.parseInt(v.getAbsoluteValue());
+                break;
+            case RANDOM_MIN_MAX:
+                val = Randomizer.getInstance().getRandomInt(v.getMin(), v.getMax());
+                break;
+            case RANDOM_RANGE:
+                String[] values = v.getRangeSet();
+                val = Integer.parseInt(values[Randomizer.getInstance().getRandomInt(0, values.length - 1)]);
+                break;
+        }
+        return computeInterval(val, unit);
+    }
 
-	public static long parseTimeInterval(String v, String unit)
-			throws IllegalArgumentException {
-		int value = Integer.parseInt(v);
-		return computeInterval(value, unit);
-	}
+    public static long parseTimeInterval(String v, String unit) throws IllegalArgumentException {
+        int value = Integer.parseInt(v);
+        return computeInterval(value, unit);
+    }
 
-	private static long computeInterval(int val, String unit) {
-		int vmult = 1;
-		if ("hr".equalsIgnoreCase(unit)) {
-			vmult = 3600 * 1000;
-		} else if ("min".equalsIgnoreCase(unit)) {
-			vmult = 60 * 1000;
-		} else if ("sec".equalsIgnoreCase(unit)) {
-			vmult = 1000;
-		} else
-			throw new IllegalArgumentException(
-					" invalid unit value specified for frequency (hr,min,sec)");
-		return val * vmult;
+    private static long computeInterval(int val, String unit) {
+        int vmult = 1;
+        if ("hr".equalsIgnoreCase(unit)) {
+            vmult = 3600 * 1000;
+        } else if ("min".equalsIgnoreCase(unit)) {
+            vmult = 60 * 1000;
+        } else if ("sec".equalsIgnoreCase(unit)) {
+            vmult = 1000;
+        } else
+            throw new IllegalArgumentException(" invalid unit value specified for frequency (hr,min,sec)");
+        return val * vmult;
 
-	}
+    }
 
-	public static Event getEvent(Pattern pattern, Events events) {
-		for (Event event : events.getEvent()) {
-			if (event.getType().equals(pattern.getEvent().getType())) {
-				return event;
-			}
-		}
-		throw new IllegalArgumentException(" Unknown event type"
-				+ pattern.getEvent().getType());
-	}
+    public static Event getEvent(Pattern pattern, Events events) {
+        for (Event event : events.getEvent()) {
+            if (event.getType().equals(pattern.getEvent().getType())) {
+                return event;
+            }
+        }
+        throw new IllegalArgumentException(" Unknown event type" + pattern.getEvent().getType());
+    }
 
-	public static Node getEventLocation(Pattern pattern,
-			List<Node> candidateLocations, Cluster cluster) {
-		ValueType value = new ValueType(pattern.getEvent().getNodeid()
-				.getValue());
-		Node location = null;
-		Type vtype = value.getType();
+    public static Node getEventLocation(Pattern pattern, List<Node> candidateLocations, Cluster cluster) {
+        ValueType value = new ValueType(pattern.getEvent().getNodeid().getValue());
+        Node location = null;
+        Type vtype = value.getType();
 
-		switch (vtype) {
-		case ABS:
-			location = getNodeFromId(value.getAbsoluteValue(), cluster);
-			break;
-		case RANDOM_RANGE:
-			int nodeIndex = Randomizer.getInstance().getRandomInt(0,
-					candidateLocations.size() - 1);
-			location = candidateLocations.get(nodeIndex);
-			break;
-		case RANDOM_MIN_MAX:
-			throw new IllegalStateException(
-					" Canont configure a min max value range for location");
-		}
-		return location;
+        switch (vtype) {
+            case ABS:
+                location = getNodeFromId(value.getAbsoluteValue(), cluster);
+                break;
+            case RANDOM_RANGE:
+                int nodeIndex = Randomizer.getInstance().getRandomInt(0, candidateLocations.size() - 1);
+                location = candidateLocations.get(nodeIndex);
+                break;
+            case RANDOM_MIN_MAX:
+                throw new IllegalStateException(" Canont configure a min max value range for location");
+        }
+        return location;
 
-	}
+    }
 
-	public static List<Node> getCandidateLocations(Pattern pattern,
-			Cluster cluster) {
-		ValueType value = new ValueType(pattern.getEvent().getNodeid()
-				.getValue());
-		List<Node> candidateList = new ArrayList<Node>();
-		switch (value.getType()) {
-		case ABS:
-			candidateList.add(getNodeFromId(value.getAbsoluteValue(), cluster));
-			break;
-		case RANDOM_RANGE:
-			boolean anyOption = false;
-			String[] values = value.getRangeSet();
-			for (String v : values) {
-				if (v.equalsIgnoreCase("ANY")) {
-					anyOption = true;
-				}
-			}
-			if (anyOption) {
-				for (Node node : cluster.getNode()) {
-					candidateList.add(node);
-				}
-			} else {
-				boolean found = false;
-				for (String v : values) {
-					for (Node node : cluster.getNode()) {
-						if (node.getId().equals(v)) {
-							candidateList.add(node);
-							found = true;
-							break;
-						}
-					}
-					if (!found) {
-						throw new IllegalStateException("Unknonw nodeId : " + v);
-					}
-					found = false;
-				}
+    public static List<Node> getCandidateLocations(Pattern pattern, Cluster cluster) {
+        ValueType value = new ValueType(pattern.getEvent().getNodeid().getValue());
+        List<Node> candidateList = new ArrayList<Node>();
+        switch (value.getType()) {
+            case ABS:
+                candidateList.add(getNodeFromId(value.getAbsoluteValue(), cluster));
+                break;
+            case RANDOM_RANGE:
+                boolean anyOption = false;
+                String[] values = value.getRangeSet();
+                for (String v : values) {
+                    if (v.equalsIgnoreCase("ANY")) {
+                        anyOption = true;
+                    }
+                }
+                if (anyOption) {
+                    for (Node node : cluster.getNode()) {
+                        candidateList.add(node);
+                    }
+                } else {
+                    boolean found = false;
+                    for (String v : values) {
+                        for (Node node : cluster.getNode()) {
+                            if (node.getId().equals(v)) {
+                                candidateList.add(node);
+                                found = true;
+                                break;
+                            }
+                        }
+                        if (!found) {
+                            throw new IllegalStateException("Unknonw nodeId : " + v);
+                        }
+                        found = false;
+                    }
 
-			}
-			String[] excluded = value.getRangeExcluded();
-			if (excluded != null && excluded.length > 0) {
-				List<Node> markedForRemoval = new ArrayList<Node>();
-				for (String exclusion : excluded) {
-					for (Node node : candidateList) {
-						if (node.getId().equals(exclusion)) {
-							markedForRemoval.add(node);
-						}
-					}
-				}
-				candidateList.removeAll(markedForRemoval);
-			}
-			break;
-		case RANDOM_MIN_MAX:
-			throw new IllegalStateException(
-					" Invalid value configured for location");
-		}
-		return candidateList;
-	}
+                }
+                String[] excluded = value.getRangeExcluded();
+                if (excluded != null && excluded.length > 0) {
+                    List<Node> markedForRemoval = new ArrayList<Node>();
+                    for (String exclusion : excluded) {
+                        for (Node node : candidateList) {
+                            if (node.getId().equals(exclusion)) {
+                                markedForRemoval.add(node);
+                            }
+                        }
+                    }
+                    candidateList.removeAll(markedForRemoval);
+                }
+                break;
+            case RANDOM_MIN_MAX:
+                throw new IllegalStateException(" Invalid value configured for location");
+        }
+        return candidateList;
+    }
 
-	private static Node getNodeFromId(String nodeid, Cluster cluster) {
-		if (nodeid.equals(EventDriver.CLIENT_NODE.getId())) {
-			return EventDriver.CLIENT_NODE;
-		}
+    private static Node getNodeFromId(String nodeid, Cluster cluster) {
+        if (nodeid.equals(EventDriver.CLIENT_NODE.getId())) {
+            return EventDriver.CLIENT_NODE;
+        }
 
-		if (nodeid.equals(cluster.getMasterNode().getId())) {
-			String logDir = cluster.getMasterNode().getLogDir() == null ? cluster
-					.getLogDir()
-					: cluster.getMasterNode().getLogDir();
-			String javaHome = cluster.getMasterNode().getJavaHome() == null ? cluster
-					.getJavaHome()
-					: cluster.getMasterNode().getJavaHome();
-			return new Node(cluster.getMasterNode().getId(), cluster
-					.getMasterNode().getClusterIp(), javaHome, logDir, null,
-					null, null);
-		}
+        if (nodeid.equals(cluster.getMasterNode().getId())) {
+            String logDir = cluster.getMasterNode().getLogDir() == null ? cluster.getLogDir() : cluster.getMasterNode()
+                    .getLogDir();
+            String javaHome = cluster.getMasterNode().getJavaHome() == null ? cluster.getJavaHome() : cluster
+                    .getMasterNode().getJavaHome();
+            return new Node(cluster.getMasterNode().getId(), cluster.getMasterNode().getClusterIp(), javaHome, logDir,
+                    null, null, null, cluster.getMasterNode().getDebugPort());
+        }
 
-		List<Node> nodeList = cluster.getNode();
-		for (Node node : nodeList) {
-			if (node.getId().equals(nodeid)) {
-				return node;
-			}
-		}
-		StringBuffer buffer = new StringBuffer();
-		buffer.append(EventDriver.CLIENT_NODE.getId() + ",");
-		buffer.append(cluster.getMasterNode().getId() + ",");
-		for (Node v : cluster.getNode()) {
-			buffer.append(v.getId() + ",");
-		}
-		buffer.deleteCharAt(buffer.length() - 1);
-		throw new IllegalArgumentException("Unknown node id :" + nodeid
-				+ " valid ids:" + buffer);
-	}
+        List<Node> nodeList = cluster.getNode();
+        for (Node node : nodeList) {
+            if (node.getId().equals(nodeid)) {
+                return node;
+            }
+        }
+        StringBuffer buffer = new StringBuffer();
+        buffer.append(EventDriver.CLIENT_NODE.getId() + ",");
+        buffer.append(cluster.getMasterNode().getId() + ",");
+        for (Node v : cluster.getNode()) {
+            buffer.append(v.getId() + ",");
+        }
+        buffer.deleteCharAt(buffer.length() - 1);
+        throw new IllegalArgumentException("Unknown node id :" + nodeid + " valid ids:" + buffer);
+    }
 
-	public static void executeEventScript(Node node, String script,
-			List<String> args, Cluster cluster) throws IOException,
-			InterruptedException {
-		List<String> pargs = new ArrayList<String>();
-		pargs.add("/bin/bash");
-		pargs.add(EventDriver.getEventsDir() + "/" + EXECUTE_SCRIPT);
-		StringBuffer argBuffer = new StringBuffer();
-		String env = EventDriver.getStringifiedEnv(cluster) + " " + IP_LOCATION
-				+ "=" + node.getClusterIp();
-		if (args != null) {
-			for (String arg : args) {
-				argBuffer.append(arg + " ");
-			}
-		}
-		ProcessBuilder pb = new ProcessBuilder(pargs);
-		pb.environment().putAll(EventDriver.getEnvironment());
-		pb.environment().put(IP_LOCATION, node.getClusterIp());
-		pb.environment().put(CLUSTER_ENV, env);
-		pb.environment().put(SCRIPT, script);
-		pb.environment().put(ARGS, argBuffer.toString());
-		pb.start();
-	}
+    public static void executeEventScript(Node node, String script, List<String> args, Cluster cluster)
+            throws IOException, InterruptedException {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(EventDriver.getEventsDir() + "/" + EXECUTE_SCRIPT);
+        StringBuffer argBuffer = new StringBuffer();
+        String env = EventDriver.getStringifiedEnv(cluster) + " " + IP_LOCATION + "=" + node.getClusterIp();
+        if (args != null) {
+            for (String arg : args) {
+                argBuffer.append(arg + " ");
+            }
+        }
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().putAll(EventDriver.getEnvironment());
+        pb.environment().put(IP_LOCATION, node.getClusterIp());
+        pb.environment().put(CLUSTER_ENV, env);
+        pb.environment().put(SCRIPT, script);
+        pb.environment().put(ARGS, argBuffer.toString());
+        pb.start();
+    }
 
-	public static void executeLocalScript(Node node, String script,
-			List<String> args) throws IOException, InterruptedException {
-		List<String> pargs = new ArrayList<String>();
-		pargs.add("/bin/bash");
-		pargs.add(script);
-		if (args != null) {
-			pargs.addAll(args);
-		}
-		ProcessBuilder pb = new ProcessBuilder(pargs);
-		pb.environment().putAll(EventDriver.getEnvironment());
-		pb.environment().put(IP_LOCATION, node.getClusterIp());
-		pb.start();
-	}
+    public static void executeLocalScript(Node node, String script, List<String> args) throws IOException,
+            InterruptedException {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(script);
+        if (args != null) {
+            pargs.addAll(args);
+        }
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().putAll(EventDriver.getEnvironment());
+        pb.environment().put(IP_LOCATION, node.getClusterIp());
+        pb.start();
+    }
 
-	public static List<String> getEventArgs(Pattern pattern) {
-		List<String> pargs = new ArrayList<String>();
-		if (pattern.getEvent().getPargs() == null) {
-			return pargs;
-		}
-		String[] args = pattern.getEvent().getPargs().split(" ");
-		for (String arg : args) {
-			pargs.add(arg.trim());
-		}
-		return pargs;
-	}
+    public static List<String> getEventArgs(Pattern pattern) {
+        List<String> pargs = new ArrayList<String>();
+        if (pattern.getEvent().getPargs() == null) {
+            return pargs;
+        }
+        String[] args = pattern.getEvent().getPargs().split(" ");
+        for (String arg : args) {
+            pargs.add(arg.trim());
+        }
+        return pargs;
+    }
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
index f6cf905..5dd370c 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
@@ -16,6 +16,7 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Event;
 
+
 public interface IOutputHandler {
 
     public OutputAnalysis reportEventOutput(Event event, String output);
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
index b619002..2524d9a 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
@@ -16,6 +16,7 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Value;
 
+
 public class ValueType {
 
 	public static enum Type {
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixInstance.java
similarity index 98%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixInstance.java
index c9a4743..87f14b0 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixInstance.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.model;
+package edu.uci.ics.asterix.event.model;
 
 import java.io.Serializable;
 import java.util.ArrayList;
@@ -30,7 +30,7 @@
     private static final long serialVersionUID = 1L;
 
     private static final int WEB_INTERFACE_PORT_DEFAULT = 19001;
-    
+
     public enum State {
         ACTIVE,
         INACTIVE,
@@ -61,7 +61,6 @@
         this.asterixVersion = asterixVersion;
         this.createdTimestamp = new Date();
         this.backupInfo = new ArrayList<BackupInfo>();
-
     }
 
     public Date getModifiedTimestamp() {
@@ -212,4 +211,5 @@
     public void setAsterixConfiguration(AsterixConfiguration asterixConfiguration) {
         this.asterixConfiguration = asterixConfiguration;
     }
+
 }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixRuntimeState.java
similarity index 93%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixRuntimeState.java
index e1a5167..b8fbabb 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/AsterixRuntimeState.java
@@ -12,13 +12,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.model;
+package edu.uci.ics.asterix.event.model;
 
 import java.io.Serializable;
 import java.util.List;
 
 public class AsterixRuntimeState implements Serializable {
 
+    private static final long serialVersionUID = 1L;
     private final List<ProcessInfo> processes;
     private final List<String> failedNCs;
     private final boolean ccRunning;
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/BackupInfo.java
similarity index 97%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/model/BackupInfo.java
index c88fddb..e1bcd8a 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/BackupInfo.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.model;
+package edu.uci.ics.asterix.event.model;
 
 import java.io.Serializable;
 import java.util.Date;
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/EventList.java
similarity index 95%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/model/EventList.java
index 91592e7..fda814c 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/EventList.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.model;
+package edu.uci.ics.asterix.event.model;
 
 public class EventList {
 
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/ProcessInfo.java
similarity index 96%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/model/ProcessInfo.java
index 56dfc8a..4fde136 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/model/ProcessInfo.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.model;
+package edu.uci.ics.asterix.event.model;
 
 import java.io.Serializable;
 
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventService.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventService.java
new file mode 100644
index 0000000..6744746
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventService.java
@@ -0,0 +1,78 @@
+package edu.uci.ics.asterix.event.service;
+
+import java.io.File;
+import java.io.FileFilter;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+
+import edu.uci.ics.asterix.event.error.OutputHandler;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public class AsterixEventService {
+
+    private static final Logger LOGGER = Logger.getLogger(AsterixEventService.class.getName());
+    private static Configuration configuration;
+    private static String asterixDir;
+    private static String asterixZip;
+    private static String eventHome;
+
+    public static void initialize(Configuration configuration, String asterixDir, String eventHome) throws Exception {
+        AsterixEventService.configuration = configuration;
+        AsterixEventService.asterixDir = asterixDir;
+        AsterixEventService.asterixZip = initBinary("asterix-server");
+        AsterixEventService.eventHome = eventHome;
+    }
+
+    public static AsterixEventServiceClient getAsterixEventServiceClient(Cluster cluster, boolean transferArtifacts,
+            boolean dryRun) throws Exception {
+        AsterixEventServiceClient client = new AsterixEventServiceClient(configuration, eventHome, cluster,
+                transferArtifacts, dryRun, OutputHandler.INSTANCE);
+        return client;
+    }
+
+    public static AsterixEventServiceClient getAsterixEventServiceClient(Cluster cluster) throws Exception {
+        AsterixEventServiceClient client = new AsterixEventServiceClient(configuration, eventHome, cluster, false,
+                false, OutputHandler.INSTANCE);
+        return client;
+    }
+
+    private static String initBinary(final String fileNamePattern) {
+        File file = new File(asterixDir);
+        File[] zipFiles = file.listFiles(new FileFilter() {
+            public boolean accept(File arg0) {
+                return arg0.getAbsolutePath().contains(fileNamePattern) && arg0.isFile();
+            }
+        });
+        if (zipFiles.length == 0) {
+            String msg = " Binary not found at " + asterixDir;
+            LOGGER.log(Level.FATAL, msg);
+            throw new IllegalStateException(msg);
+        }
+        if (zipFiles.length > 1) {
+            String msg = " Multiple binaries found at " + asterixDir;
+            LOGGER.log(Level.FATAL, msg);
+            throw new IllegalStateException(msg);
+        }
+
+        return zipFiles[0].getAbsolutePath();
+    }
+
+    public static Configuration getConfiguration() {
+        return configuration;
+    }
+
+    public static String getAsterixZip() {
+        return asterixZip;
+    }
+
+    public static String getAsterixDir() {
+        return asterixDir;
+    }
+
+    public static String getEventHome() {
+        return eventHome;
+    }
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java
new file mode 100644
index 0000000..2129862
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java
@@ -0,0 +1,539 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.service;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Random;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+
+import org.apache.commons.io.IOUtils;
+
+import edu.uci.ics.asterix.common.configuration.AsterixConfiguration;
+import edu.uci.ics.asterix.common.configuration.Coredump;
+import edu.uci.ics.asterix.common.configuration.Store;
+import edu.uci.ics.asterix.common.configuration.TransactionLogDir;
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.error.EventException;
+import edu.uci.ics.asterix.event.management.EventUtil;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Env;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+
+public class AsterixEventServiceUtil {
+
+    public static final String TXN_LOG_DIR = "txnLogs";
+    public static final String TXN_LOG_DIR_KEY_SUFFIX = "txnLogDir";
+    public static final String ASTERIX_CONFIGURATION_FILE = "asterix-configuration.xml";
+    public static final String TXN_LOG_CONFIGURATION_FILE = "log.properties";
+    public static final String CLUSTER_CONFIGURATION_FILE = "cluster.xml";
+    public static final String ASTERIX_DIR = "asterix";
+    public static final String EVENT_DIR = "events";
+    public static final String DEFAULT_ASTERIX_CONFIGURATION_PATH = "conf" + File.separator + File.separator
+            + "asterix-configuration.xml";
+    public static final int CLUSTER_NET_PORT_DEFAULT = 1098;
+    public static final int CLIENT_NET_PORT_DEFAULT = 1099;
+    public static final int HTTP_PORT_DEFAULT = 8888;
+    public static final int WEB_INTERFACE_PORT_DEFAULT = 19001;
+
+    public static final String MANAGIX_INTERNAL_DIR = ".installer";
+    public static final String MANAGIX_CONF_XML = "conf" + File.separator + "managix-conf.xml";
+
+    public static AsterixInstance createAsterixInstance(String asterixInstanceName, Cluster cluster,
+            AsterixConfiguration asterixConfiguration) throws FileNotFoundException, IOException {
+        Node metadataNode = getMetadataNode(cluster);
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String asterixVersion = asterixZipName.substring("asterix-server-".length(),
+                asterixZipName.indexOf("-binary-assembly"));
+        AsterixInstance instance = new AsterixInstance(asterixInstanceName, cluster, asterixConfiguration,
+                metadataNode.getId(), asterixVersion);
+        return instance;
+    }
+
+    public static void createAsterixZip(AsterixInstance asterixInstance) throws IOException, InterruptedException,
+            JAXBException, EventException {
+
+        String modifiedZipPath = injectAsterixPropertyFile(AsterixEventService.getAsterixZip(), asterixInstance);
+        injectAsterixClusterConfigurationFile(modifiedZipPath, asterixInstance);
+    }
+
+    public static void createClusterProperties(Cluster cluster, AsterixConfiguration asterixConfiguration) {
+
+        String ccJavaOpts = null;
+        String ncJavaOpts = null;
+        for (edu.uci.ics.asterix.common.configuration.Property property : asterixConfiguration.getProperty()) {
+            if (property.getName().equalsIgnoreCase(EventUtil.CC_JAVA_OPTS)) {
+                ccJavaOpts = property.getValue();
+            } else if (property.getName().equalsIgnoreCase(EventUtil.NC_JAVA_OPTS)) {
+                ncJavaOpts = property.getValue();
+            }
+        }
+
+        poulateClusterEnvironmentProperties(cluster, ccJavaOpts, ncJavaOpts);
+    }
+
+    public static void poulateClusterEnvironmentProperties(Cluster cluster, String ccJavaOpts, String ncJavaOpts) {
+        List<Property> clusterProperties = null;
+        if (cluster.getEnv() != null && cluster.getEnv().getProperty() != null) {
+            clusterProperties = cluster.getEnv().getProperty();
+            clusterProperties.clear();
+        } else {
+            clusterProperties = new ArrayList<Property>();
+        }
+
+        clusterProperties.add(new Property(EventUtil.CC_JAVA_OPTS, ccJavaOpts));
+        clusterProperties.add(new Property(EventUtil.NC_JAVA_OPTS, ncJavaOpts));
+        clusterProperties.add(new Property("ASTERIX_HOME", cluster.getWorkingDir().getDir() + File.separator
+                + "asterix"));
+        clusterProperties.add(new Property("LOG_DIR", cluster.getLogDir()));
+        clusterProperties.add(new Property("JAVA_HOME", cluster.getJavaHome()));
+        clusterProperties.add(new Property("WORKING_DIR", cluster.getWorkingDir().getDir()));
+        clusterProperties.add(new Property("CLIENT_NET_IP", cluster.getMasterNode().getClientIp()));
+        clusterProperties.add(new Property("CLUSTER_NET_IP", cluster.getMasterNode().getClusterIp()));
+
+        int clusterNetPort = cluster.getMasterNode().getClusterPort() != null ? cluster.getMasterNode()
+                .getClusterPort().intValue() : CLUSTER_NET_PORT_DEFAULT;
+        int clientNetPort = cluster.getMasterNode().getClientPort() != null ? cluster.getMasterNode().getClientPort()
+                .intValue() : CLIENT_NET_PORT_DEFAULT;
+        int httpPort = cluster.getMasterNode().getHttpPort() != null ? cluster.getMasterNode().getHttpPort().intValue()
+                : HTTP_PORT_DEFAULT;
+
+        clusterProperties.add(new Property("CLIENT_NET_PORT", "" + clientNetPort));
+        clusterProperties.add(new Property("CLUSTER_NET_PORT", "" + clusterNetPort));
+        clusterProperties.add(new Property("HTTP_PORT", "" + httpPort));
+
+        cluster.setEnv(new Env(clusterProperties));
+    }
+
+    private static String injectAsterixPropertyFile(String origZipFile, AsterixInstance asterixInstance)
+            throws IOException, JAXBException {
+        writeAsterixConfigurationFile(asterixInstance);
+        String asterixInstanceDir = AsterixEventService.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(origZipFile, asterixInstanceDir);
+        File sourceJar = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        File replacementFile = new File(asterixInstanceDir + File.separator + ASTERIX_CONFIGURATION_FILE);
+        replaceInJar(sourceJar, ASTERIX_CONFIGURATION_FILE, replacementFile);
+        new File(asterixInstanceDir + File.separator + ASTERIX_CONFIGURATION_FILE).delete();
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+        return asterixInstanceDir + File.separator + asterixZipName;
+    }
+
+    private static String injectAsterixLogPropertyFile(String origZipFile, AsterixInstance asterixInstance)
+            throws IOException, EventException {
+        String asterixInstanceDir = AsterixEventService.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(origZipFile, asterixInstanceDir);
+        File sourceJar1 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        Properties txnLogProperties = new Properties();
+        URLClassLoader urlClassLoader = new URLClassLoader(new URL[] { sourceJar1.toURI().toURL() });
+        InputStream in = urlClassLoader.getResourceAsStream(TXN_LOG_CONFIGURATION_FILE);
+        if (in != null) {
+            txnLogProperties.load(in);
+        }
+
+        writeAsterixLogConfigurationFile(asterixInstance, txnLogProperties);
+
+        File sourceJar2 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        File replacementFile = new File(asterixInstanceDir + File.separator + "log.properties");
+        replaceInJar(sourceJar2, TXN_LOG_CONFIGURATION_FILE, replacementFile);
+
+        new File(asterixInstanceDir + File.separator + "log.properties").delete();
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+        return asterixInstanceDir + File.separator + asterixZipName;
+    }
+
+    private static String injectAsterixClusterConfigurationFile(String origZipFile, AsterixInstance asterixInstance)
+            throws IOException, EventException, JAXBException {
+        String asterixInstanceDir = AsterixEventService.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(origZipFile, asterixInstanceDir);
+        File sourceJar = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        writeAsterixClusterConfigurationFile(asterixInstance);
+
+        File replacementFile = new File(asterixInstanceDir + File.separator + "cluster.xml");
+        replaceInJar(sourceJar, CLUSTER_CONFIGURATION_FILE, replacementFile);
+
+        new File(asterixInstanceDir + File.separator + CLUSTER_CONFIGURATION_FILE).delete();
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+        return asterixInstanceDir + File.separator + asterixZipName;
+    }
+
+    private static void writeAsterixClusterConfigurationFile(AsterixInstance asterixInstance) throws IOException,
+            EventException, JAXBException {
+        String asterixInstanceName = asterixInstance.getName();
+        Cluster cluster = asterixInstance.getCluster();
+
+        JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+        Marshaller marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        marshaller.marshal(cluster, new FileOutputStream(AsterixEventService.getAsterixDir() + File.separator
+                + asterixInstanceName + File.separator + "cluster.xml"));
+    }
+
+    public static void addLibraryToAsterixZip(AsterixInstance asterixInstance, String dataverseName,
+            String libraryName, String libraryPath) throws IOException {
+        File instanceDir = new File(AsterixEventService.getAsterixDir() + File.separator + asterixInstance.getName());
+        if (!instanceDir.exists()) {
+            instanceDir.mkdirs();
+        }
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+
+        String sourceZip = instanceDir.getAbsolutePath() + File.separator + asterixZipName;
+        unzip(sourceZip, instanceDir.getAbsolutePath());
+        File libraryPathInZip = new File(instanceDir.getAbsolutePath() + File.separator + "external" + File.separator
+                + "library" + dataverseName + File.separator + "to-add" + File.separator + libraryName);
+        libraryPathInZip.mkdirs();
+        Runtime.getRuntime().exec("cp" + " " + libraryPath + " " + libraryPathInZip.getAbsolutePath());
+        Runtime.getRuntime().exec("rm " + sourceZip);
+        String destZip = AsterixEventService.getAsterixDir() + File.separator + asterixInstance.getName()
+                + File.separator + asterixZipName;
+        zipDir(instanceDir, new File(destZip));
+        Runtime.getRuntime().exec("mv" + " " + destZip + " " + sourceZip);
+    }
+
+    private static Node getMetadataNode(Cluster cluster) {
+        Random random = new Random();
+        int nNodes = cluster.getNode().size();
+        return cluster.getNode().get(random.nextInt(nNodes));
+    }
+
+    public static String getNodeDirectories(String asterixInstanceName, Node node, Cluster cluster) {
+        String storeDataSubDir = asterixInstanceName + File.separator + "data" + File.separator;
+        String[] storeDirs = null;
+        StringBuffer nodeDataStore = new StringBuffer();
+        String storeDirValue = node.getStore();
+        if (storeDirValue == null) {
+            storeDirValue = cluster.getStore();
+            if (storeDirValue == null) {
+                throw new IllegalStateException(" Store not defined for node " + node.getId());
+            }
+            storeDataSubDir = node.getId() + File.separator + storeDataSubDir;
+        }
+
+        storeDirs = storeDirValue.split(",");
+        for (String ns : storeDirs) {
+            nodeDataStore.append(ns + File.separator + storeDataSubDir.trim());
+            nodeDataStore.append(",");
+        }
+        nodeDataStore.deleteCharAt(nodeDataStore.length() - 1);
+        return nodeDataStore.toString();
+    }
+
+    private static void writeAsterixConfigurationFile(AsterixInstance asterixInstance) throws IOException,
+            JAXBException {
+        String asterixInstanceName = asterixInstance.getName();
+        Cluster cluster = asterixInstance.getCluster();
+        String metadataNodeId = asterixInstance.getMetadataNodeId();
+
+        AsterixConfiguration configuration = asterixInstance.getAsterixConfiguration();
+        configuration.setInstanceName(asterixInstanceName);
+        configuration.setMetadataNode(asterixInstanceName + "_" + metadataNodeId);
+        String storeDir = null;
+        List<Store> stores = new ArrayList<Store>();
+        for (Node node : cluster.getNode()) {
+            storeDir = node.getStore() == null ? cluster.getStore() : node.getStore();
+            stores.add(new Store(asterixInstanceName + "_" + node.getId(), storeDir));
+        }
+        configuration.setStore(stores);
+
+        List<Coredump> coredump = new ArrayList<Coredump>();
+        String coredumpDir = null;
+        List<TransactionLogDir> txnLogDirs = new ArrayList<TransactionLogDir>();
+        String txnLogDir = null;
+        for (Node node : cluster.getNode()) {
+            coredumpDir = node.getLogDir() == null ? cluster.getLogDir() : node.getLogDir();
+            coredump.add(new Coredump(asterixInstanceName + "_" + node.getId(), coredumpDir + File.separator
+                    + asterixInstanceName + "_" + node.getId()));
+
+            txnLogDir = node.getTxnLogDir() == null ? cluster.getTxnLogDir() : node.getTxnLogDir();
+            txnLogDirs.add(new TransactionLogDir(asterixInstanceName + "_" + node.getId(), txnLogDir));
+        }
+        configuration.setCoredump(coredump);
+        configuration.setTransactionLogDir(txnLogDirs);
+
+        File asterixConfDir = new File(AsterixEventService.getAsterixDir() + File.separator + asterixInstanceName);
+        asterixConfDir.mkdirs();
+
+        JAXBContext ctx = JAXBContext.newInstance(AsterixConfiguration.class);
+        Marshaller marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        FileOutputStream os = new FileOutputStream(asterixConfDir + File.separator + ASTERIX_CONFIGURATION_FILE);
+        marshaller.marshal(configuration, os);
+        os.close();
+    }
+
+    private static void writeAsterixLogConfigurationFile(AsterixInstance asterixInstance, Properties logProperties)
+            throws IOException, EventException {
+        String asterixInstanceName = asterixInstance.getName();
+        Cluster cluster = asterixInstance.getCluster();
+        StringBuffer conf = new StringBuffer();
+        for (Map.Entry<Object, Object> p : logProperties.entrySet()) {
+            conf.append(p.getKey() + "=" + p.getValue() + "\n");
+        }
+
+        for (Node node : cluster.getNode()) {
+            String txnLogDir = node.getTxnLogDir() == null ? cluster.getTxnLogDir() : node.getTxnLogDir();
+            if (txnLogDir == null) {
+                throw new EventException("Transaction log directory (txn_log_dir) not configured for node: "
+                        + node.getId());
+            }
+            conf.append(asterixInstanceName + "_" + node.getId() + "." + TXN_LOG_DIR_KEY_SUFFIX + "=" + txnLogDir
+                    + "\n");
+        }
+        List<edu.uci.ics.asterix.common.configuration.Property> properties = asterixInstance.getAsterixConfiguration()
+                .getProperty();
+        for (edu.uci.ics.asterix.common.configuration.Property p : properties) {
+            if (p.getName().trim().toLowerCase().contains("log")) {
+                conf.append(p.getValue() + "=" + p.getValue());
+            }
+        }
+        dumpToFile(AsterixEventService.getAsterixDir() + File.separator + asterixInstanceName + File.separator
+                + "log.properties", conf.toString());
+
+    }
+
+    public static void unzip(String sourceFile, String destDir) throws IOException {
+        BufferedOutputStream dest = null;
+        FileInputStream fis = new FileInputStream(sourceFile);
+        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
+        ZipEntry entry = null;
+
+        int BUFFER_SIZE = 4096;
+        while ((entry = zis.getNextEntry()) != null) {
+            String dst = destDir + File.separator + entry.getName();
+            if (entry.isDirectory()) {
+                createDir(destDir, entry);
+                continue;
+            }
+            int count;
+            byte data[] = new byte[BUFFER_SIZE];
+
+            // write the file to the disk
+            FileOutputStream fos = new FileOutputStream(dst);
+            dest = new BufferedOutputStream(fos, BUFFER_SIZE);
+            while ((count = zis.read(data, 0, BUFFER_SIZE)) != -1) {
+                dest.write(data, 0, count);
+            }
+            // close the output streams
+            dest.flush();
+            dest.close();
+        }
+
+        zis.close();
+    }
+
+    public static void zipDir(File sourceDir, File destFile) throws IOException {
+        FileOutputStream fos = new FileOutputStream(destFile);
+        ZipOutputStream zos = new ZipOutputStream(fos);
+        zipDir(sourceDir, destFile, zos);
+        zos.close();
+    }
+
+    private static void zipDir(File sourceDir, final File destFile, ZipOutputStream zos) throws IOException {
+        File[] dirList = sourceDir.listFiles(new FileFilter() {
+            public boolean accept(File f) {
+                return !f.getName().endsWith(destFile.getName());
+            }
+        });
+        for (int i = 0; i < dirList.length; i++) {
+            File f = dirList[i];
+            if (f.isDirectory()) {
+                zipDir(f, destFile, zos);
+            } else {
+                int bytesIn = 0;
+                byte[] readBuffer = new byte[2156];
+                FileInputStream fis = new FileInputStream(f);
+                ZipEntry entry = new ZipEntry(sourceDir.getName() + File.separator + f.getName());
+                zos.putNextEntry(entry);
+                while ((bytesIn = fis.read(readBuffer)) != -1) {
+                    zos.write(readBuffer, 0, bytesIn);
+                }
+                fis.close();
+            }
+        }
+    }
+
+    private static void replaceInJar(File sourceJar, String origFile, File replacementFile) throws IOException {
+        String srcJarAbsPath = sourceJar.getAbsolutePath();
+        String srcJarSuffix = srcJarAbsPath.substring(srcJarAbsPath.lastIndexOf(File.separator) + 1);
+        String srcJarName = srcJarSuffix.split(".jar")[0];
+
+        String destJarName = srcJarName + "-managix";
+        String destJarSuffix = destJarName + ".jar";
+        File destJar = new File(sourceJar.getParentFile().getAbsolutePath() + File.separator + destJarSuffix);
+        //  File destJar = new File(sourceJar.getAbsolutePath() + ".modified");
+        InputStream jarIs = null;
+        FileInputStream fis = new FileInputStream(replacementFile);
+        JarFile sourceJarFile = new JarFile(sourceJar);
+        Enumeration<JarEntry> entries = sourceJarFile.entries();
+        JarOutputStream jos = new JarOutputStream(new FileOutputStream(destJar));
+        byte[] buffer = new byte[2048];
+        int read;
+        while (entries.hasMoreElements()) {
+            JarEntry entry = (JarEntry) entries.nextElement();
+            String name = entry.getName();
+            if (name.equals(origFile)) {
+                continue;
+            }
+            jarIs = sourceJarFile.getInputStream(entry);
+            jos.putNextEntry(entry);
+            while ((read = jarIs.read(buffer)) != -1) {
+                jos.write(buffer, 0, read);
+            }
+        }
+        JarEntry entry = new JarEntry(origFile);
+        jos.putNextEntry(entry);
+        while ((read = fis.read(buffer)) != -1) {
+            jos.write(buffer, 0, read);
+        }
+        fis.close();
+        jos.close();
+        jarIs.close();
+        sourceJar.delete();
+        destJar.renameTo(sourceJar);
+        destJar.setExecutable(true);
+    }
+
+    public static void dumpToFile(String dest, String content) throws IOException {
+        FileWriter writer = new FileWriter(dest);
+        writer.write(content);
+        writer.close();
+    }
+
+    private static void createDir(String destDirectory, ZipEntry entry) {
+        String name = entry.getName();
+        int index = name.lastIndexOf(File.separator);
+        String dirSequence = name.substring(0, index);
+        File newDirs = new File(destDirectory + File.separator + dirSequence);
+        newDirs.mkdirs();
+    }
+
+    public static AsterixInstance validateAsterixInstanceExists(String name, State... permissibleStates)
+            throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance == null) {
+            throw new EventException("Asterix instance by name " + name + " does not exist.");
+        }
+        boolean valid = false;
+        for (State state : permissibleStates) {
+            if (state.equals(instance.getState())) {
+                valid = true;
+                break;
+            }
+        }
+        if (!valid) {
+            throw new EventException("Asterix instance by the name " + name + " is in " + instance.getState()
+                    + " state ");
+        }
+        return instance;
+    }
+
+    public static void validateAsterixInstanceNotExists(String name) throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance != null) {
+            throw new EventException("Asterix instance by name " + name + " already exists.");
+        }
+    }
+
+    public static void evaluateConflictWithOtherInstances(AsterixInstance instance) throws Exception {
+        List<AsterixInstance> existingInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
+        List<String> usedIps = new ArrayList<String>();
+        String masterIp = instance.getCluster().getMasterNode().getClusterIp();
+        for (Node node : instance.getCluster().getNode()) {
+            usedIps.add(node.getClusterIp());
+        }
+        usedIps.add(instance.getCluster().getMasterNode().getClusterIp());
+        boolean conflictFound = false;
+        AsterixInstance conflictingInstance = null;
+        for (AsterixInstance existing : existingInstances) {
+            conflictFound = existing.getCluster().getMasterNode().getClusterIp().equals(masterIp);
+            if (conflictFound) {
+                conflictingInstance = existing;
+                break;
+            }
+            for (Node n : existing.getCluster().getNode()) {
+                if (usedIps.contains(n.getClusterIp())) {
+                    conflictFound = true;
+                    conflictingInstance = existing;
+                    break;
+                }
+            }
+        }
+        if (conflictFound) {
+            throw new Exception("Cluster definition conflicts with an existing instance of Asterix: "
+                    + conflictingInstance.getName());
+        }
+    }
+
+    public static void deleteDirectory(String path) throws IOException {
+        Runtime.getRuntime().exec("rm -rf " + path);
+    }
+
+    public static String executeLocalScript(String path, List<String> args) throws Exception {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(path);
+        if (args != null) {
+            pargs.addAll(args);
+        }
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().putAll(EventDriver.getEnvironment());
+        pb.environment().put("IP_LOCATION", EventDriver.CLIENT_NODE.getClusterIp());
+        Process p = pb.start();
+        BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
+        StringWriter writer = new StringWriter();
+        IOUtils.copy(bis, writer, "UTF-8");
+        return writer.toString();
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ILookupService.java
similarity index 92%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ILookupService.java
index 59fa198..cac504f 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ILookupService.java
@@ -12,11 +12,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.event.service;
 
 import java.util.List;
 
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
 import edu.uci.ics.asterix.installer.schema.conf.Configuration;
 
 public interface ILookupService {
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
similarity index 94%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
index 98d72f4..56e5337 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.event.service;
 
 public class ServiceProvider {
 
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ZooKeeperService.java
similarity index 91%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ZooKeeperService.java
index d3304d2..5c059bb 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ZooKeeperService.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.event.service;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -34,10 +34,8 @@
 import org.apache.zookeeper.ZooKeeper;
 import org.apache.zookeeper.data.Stat;
 
-import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.error.InstallerException;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.event.error.EventException;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
 import edu.uci.ics.asterix.installer.schema.conf.Configuration;
 
 public class ZooKeeperService implements ILookupService {
@@ -47,8 +45,7 @@
     private static final int ZOOKEEPER_LEADER_CONN_PORT = 2222;
     private static final int ZOOKEEPER_LEADER_ELEC_PORT = 2223;
     private static final int ZOOKEEPER_SESSION_TIME_OUT = 40 * 1000; //milliseconds
-    private static final String ZOOKEEPER_HOME = InstallerDriver.getManagixHome() + File.separator
-            + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "zookeeper";
+    private static final String ZOOKEEPER_HOME = AsterixEventService.getEventHome() + File.separator + "zookeeper";
     private static final String ZOO_KEEPER_CONFIG = ZOOKEEPER_HOME + File.separator + "zk.cfg";
 
     private boolean isRunning = false;
@@ -109,10 +106,10 @@
         if (head == null) {
             StringBuilder msg = new StringBuilder(
                     "Unable to start Zookeeper Service. This could be because of the following reasons.\n");
-            msg.append("1) Managix is incorrectly configured. Please run " + InstallerDriver.getManagixHome()
-                    + "/bin/managix validate" + " to run a validation test and correct the errors reported.");
+            msg.append("1) Managix is incorrectly configured. Please run " + "managix validate"
+                    + " to run a validation test and correct the errors reported.");
             msg.append("\n2) If validation in (1) is successful, ensure that java_home parameter is set correctly in Managix configuration ("
-                    + InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_CONF_XML + ")");
+                    + AsterixEventServiceUtil.MANAGIX_CONF_XML + ")");
             throw new Exception(msg.toString());
         }
         msgQ.take();
@@ -172,7 +169,7 @@
 
     public void removeAsterixInstance(String name) throws Exception {
         if (!exists(name)) {
-            throw new InstallerException("Asterix instance by name " + name + " does not exists.");
+            throw new EventException("Asterix instance by name " + name + " does not exists.");
         }
         zk.delete(ASTERIX_INSTANCE_BASE_PATH + File.separator + name, DEFAULT_NODE_VERSION);
     }
@@ -244,7 +241,7 @@
             buffer.append("server" + "." + serverId + "=" + server + ":" + leaderConnPort + ":" + leaderElecPort + "\n");
             serverId++;
         }
-        InstallerUtil.dumpToFile(zooKeeperConfigPath, buffer.toString());
+        AsterixEventServiceUtil.dumpToFile(zooKeeperConfigPath, buffer.toString());
     }
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/util/AsterixConstants.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/util/AsterixConstants.java
new file mode 100644
index 0000000..ff600ce
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/util/AsterixConstants.java
@@ -0,0 +1,7 @@
+package edu.uci.ics.asterix.event.util;
+
+public class AsterixConstants {
+
+    public static String ASTERIX_ROOT_METADATA_DIR = "asterix_root_metadata";
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/util/PatternCreator.java
similarity index 72%
rename from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
rename to asterix-events/src/main/java/edu/uci/ics/asterix/event/util/PatternCreator.java
index fe61462..e06d66c 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/util/PatternCreator.java
@@ -12,17 +12,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.events;
+package edu.uci.ics.asterix.event.util;
 
 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.BackupInfo;
+import edu.uci.ics.asterix.event.model.BackupInfo.BackupType;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
 import edu.uci.ics.asterix.event.schema.pattern.Delay;
@@ -31,20 +36,20 @@
 import edu.uci.ics.asterix.event.schema.pattern.Pattern;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
 import edu.uci.ics.asterix.event.schema.pattern.Value;
-import edu.uci.ics.asterix.installer.command.BackupCommand;
-import edu.uci.ics.asterix.installer.command.StopCommand;
-import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.BackupInfo;
-import edu.uci.ics.asterix.installer.model.BackupInfo.BackupType;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.schema.conf.Backup;
-import edu.uci.ics.asterix.installer.service.ILookupService;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class PatternCreator {
 
+    public static PatternCreator INSTANCE = new PatternCreator();
+
+    private PatternCreator() {
+
+    }
+
     private ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
 
     private void addInitialDelay(Pattern p, int delay, String unit) {
@@ -94,9 +99,9 @@
         return patterns;
     }
 
-    public Patterns getStopCommandPattern(StopCommand stopCommand) throws Exception {
+    public Patterns getStopCommandPattern(String asterixInstanceName) throws Exception {
         List<Pattern> ps = new ArrayList<Pattern>();
-        AsterixInstance asterixInstance = lookupService.getAsterixInstance(stopCommand.getAsterixInstanceName());
+        AsterixInstance asterixInstance = lookupService.getAsterixInstance(asterixInstanceName);
         Cluster cluster = asterixInstance.getCluster();
 
         String ccLocation = cluster.getMasterNode().getId();
@@ -104,7 +109,6 @@
         addInitialDelay(createCC, 5, "sec");
         ps.add(createCC);
 
-        String asterixInstanceName = stopCommand.getAsterixInstanceName();
         int nodeControllerIndex = 1;
         for (Node node : cluster.getNode()) {
             Pattern createNC = createNCStopPattern(node.getId(), asterixInstanceName + "_" + nodeControllerIndex);
@@ -161,8 +165,9 @@
             iodevices = node.getIodevices() == null ? instance.getCluster().getIodevices() : node.getIodevices();
             store = node.getStore() == null ? cluster.getStore() : node.getStore();
             pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
-                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
-                    + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+                    + AsterixConstants.ASTERIX_ROOT_METADATA_DIR + " " + AsterixEventServiceUtil.TXN_LOG_DIR + " "
+                    + backupId + " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " "
+                    + hadoopVersion;
             Event event = new Event("backup", nodeid, pargs);
             patternList.add(new Pattern(null, 1, null, event));
         }
@@ -185,7 +190,7 @@
             txnLogDir = node.getTxnLogDir() == null ? instance.getCluster().getTxnLogDir() : node.getTxnLogDir();
             store = node.getStore() == null ? cluster.getStore() : node.getStore();
             pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
-                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR  + " " + txnLogDir + " " + backupId + " " + backupDir
+                    + AsterixConstants.ASTERIX_ROOT_METADATA_DIR + " " + txnLogDir + " " + backupId + " " + backupDir
                     + " " + "local" + " " + node.getId();
             Event event = new Event("backup", nodeid, pargs);
             patternList.add(new Pattern(null, 1, null, event));
@@ -210,8 +215,9 @@
             String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
             nodeStore = node.getStore() == null ? clusterStore : node.getStore();
             pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
-                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
-                    + " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+                    + AsterixConstants.ASTERIX_ROOT_METADATA_DIR + " " + AsterixEventServiceUtil.TXN_LOG_DIR + " "
+                    + backupId + " " + " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " "
+                    + hadoopVersion;
             Event event = new Event("restore", nodeid, pargs);
             patternList.add(new Pattern(null, 1, null, event));
         }
@@ -232,8 +238,8 @@
             String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
             nodeStore = node.getStore() == null ? clusterStore : node.getStore();
             pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
-                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
-                    + backupDir + " " + "local" + " " + node.getId();
+                    + AsterixConstants.ASTERIX_ROOT_METADATA_DIR + " " + AsterixEventServiceUtil.TXN_LOG_DIR + " "
+                    + backupId + " " + backupDir + " " + "local" + " " + node.getId();
             Event event = new Event("restore", nodeid, pargs);
             patternList.add(new Pattern(null, 1, null, event));
         }
@@ -243,9 +249,8 @@
     public Patterns createHadoopLibraryTransferPattern(Cluster cluster) throws Exception {
         List<Pattern> patternList = new ArrayList<Pattern>();
         String workingDir = cluster.getWorkingDir().getDir();
-        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
-        File hadoopDir = new File(InstallerDriver.getManagixHome() + File.separator
-                + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "hadoop-" + hadoopVersion);
+        String hadoopVersion = AsterixEventService.getConfiguration().getBackup().getHdfs().getVersion();
+        File hadoopDir = new File(AsterixEventService.getEventHome() + File.separator + "hadoop-" + hadoopVersion);
         if (!hadoopDir.exists()) {
             throw new IllegalStateException("Hadoop version :" + hadoopVersion + " not supported");
         }
@@ -332,8 +337,8 @@
     private Patterns createRemoveHDFSBackupPattern(AsterixInstance instance, String hdfsBackupDir) throws Exception {
         List<Pattern> patternList = new ArrayList<Pattern>();
         Cluster cluster = instance.getCluster();
-        String hdfsUrl = InstallerDriver.getConfiguration().getBackup().getHdfs().getUrl();
-        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        String hdfsUrl = AsterixEventService.getConfiguration().getBackup().getHdfs().getUrl();
+        String hadoopVersion = AsterixEventService.getConfiguration().getBackup().getHdfs().getVersion();
         String workingDir = cluster.getWorkingDir().getDir();
         Node launchingNode = cluster.getNode().get(0);
         Nodeid nodeid = new Nodeid(new Value(null, launchingNode.getId()));
@@ -386,6 +391,85 @@
         return patterns;
     }
 
+    public Patterns getLibraryInstallPattern(AsterixInstance instance, String dataverse, String libraryName,
+            String libraryPath) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+        String workingDir = cluster.getWorkingDir().getDir();
+        String destDir = workingDir + File.separator + "library" + File.separator + dataverse + File.separator
+                + libraryName;
+        String fileToTransfer = new File(libraryPath).getAbsolutePath();
+
+        Iterator<Node> installTargets = cluster.getNode().iterator();
+        Node installNode = installTargets.next();
+        String destinationIp = installNode.getClusterIp();
+        String pargs = username + " " + fileToTransfer + " " + destinationIp + " " + destDir + " " + "unpack";
+        Event event = new Event("file_transfer", nodeid, pargs);
+        Pattern p = new Pattern(null, 1, null, event);
+        patternList.add(p);
+
+        if (!cluster.getWorkingDir().isNFS()) {
+            while (installTargets.hasNext()) {
+                Node node = installTargets.next();
+                pargs = username + " " + fileToTransfer + " " + node.getClusterIp() + " " + destDir + " " + "unpack";
+                event = new Event("file_transfer", nodeid, pargs);
+                p = new Pattern(null, 1, null, event);
+                patternList.add(p);
+            }
+
+            pargs = username + " " + fileToTransfer + " " + cluster.getMasterNode().getClusterIp() + " " + destDir
+                    + " " + "unpack";
+            event = new Event("file_transfer", nodeid, pargs);
+            p = new Pattern(null, 1, null, event);
+            patternList.add(p);
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns getLibraryUninstallPattern(AsterixInstance instance, String dataverse, String libraryName)
+            throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String destFile = dataverse + "." + libraryName;
+        String pargs = workingDir + File.separator + "uninstall" + " " + destFile;
+
+        String metadataNodeId = instance.getMetadataNodeId();
+        Nodeid nodeid = new Nodeid(new Value(null, metadataNodeId));
+        Event event = new Event("file_create", nodeid, pargs);
+        Pattern p = new Pattern(null, 1, null, event);
+        patternList.add(p);
+
+        Iterator<Node> uninstallTargets = cluster.getNode().iterator();
+        String libDir = workingDir + File.separator + "library" + File.separator + dataverse + File.separator
+                + libraryName;
+        Node uninstallNode = uninstallTargets.next();
+        nodeid = new Nodeid(new Value(null, uninstallNode.getId()));
+        event = new Event("file_delete", nodeid, libDir);
+        p = new Pattern(null, 1, null, event);
+        patternList.add(p);
+        pargs = libDir;
+
+        if (!cluster.getWorkingDir().isNFS()) {
+            while (uninstallTargets.hasNext()) {
+                uninstallNode = uninstallTargets.next();
+                nodeid = new Nodeid(new Value(null, uninstallNode.getId()));
+                event = new Event("file_delete", nodeid, pargs);
+                p = new Pattern(null, 1, null, event);
+                patternList.add(p);
+            }
+
+            nodeid = new Nodeid(new Value(null, cluster.getMasterNode().getId()));
+            event = new Event("file_delete", nodeid, pargs);
+            p = new Pattern(null, 1, null, event);
+            patternList.add(p);
+
+        }
+        return new Patterns(patternList);
+    }
+
     private Patterns createRemoveAsterixRootMetadata(AsterixInstance instance) throws Exception {
         List<Pattern> patternList = new ArrayList<Pattern>();
         Cluster cluster = instance.getCluster();
@@ -395,7 +479,7 @@
         for (Node node : cluster.getNode()) {
             String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
             String primaryIODevice = iodevices.split(",")[0].trim();
-            pargs = primaryIODevice + File.separator + BackupCommand.ASTERIX_ROOT_METADATA_DIR;
+            pargs = primaryIODevice + File.separator + AsterixConstants.ASTERIX_ROOT_METADATA_DIR;
             nodeid = new Nodeid(new Value(null, node.getId()));
             event = new Event("file_delete", nodeid, pargs);
             patternList.add(new Pattern(null, 1, null, event));
@@ -447,9 +531,9 @@
     private Pattern createCopyHyracksPattern(String instanceName, Cluster cluster, String destinationIp, String destDir) {
         Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
         String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
-        String asterixZipName = InstallerDriver.getAsterixZip().substring(
-                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
-        String fileToTransfer = new File(InstallerDriver.getAsterixDir() + File.separator + instanceName
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String fileToTransfer = new File(AsterixEventService.getAsterixDir() + File.separator + instanceName
                 + File.separator + asterixZipName).getAbsolutePath();
         String pargs = username + " " + fileToTransfer + " " + destinationIp + " " + destDir + " " + "unpack";
         Event event = new Event("file_transfer", nodeid, pargs);
@@ -481,10 +565,48 @@
         return new Pattern(null, 1, null, event);
     }
 
+    public Patterns createPrepareNodePattern(String instanceName, Cluster cluster, Node nodeToBeAdded) {
+        List<Pattern> ps = new ArrayList<Pattern>();
+        boolean workingDirOnNFS = cluster.getWorkingDir().isNFS();
+        if (!workingDirOnNFS) {
+            String ccLocationIp = cluster.getMasterNode().getClusterIp();
+            String destDir = cluster.getWorkingDir().getDir() + File.separator + "asterix";
+            Pattern copyHyracks = createCopyHyracksPattern(instanceName, cluster, ccLocationIp, destDir);
+            ps.add(copyHyracks);
+
+            String workingDir = cluster.getWorkingDir().getDir();
+            String hadoopVersion = AsterixEventService.getConfiguration().getBackup().getHdfs().getVersion();
+            File hadoopDir = new File(AsterixEventService.getEventHome() + File.separator + "hadoop-" + hadoopVersion);
+            if (!hadoopDir.exists()) {
+                throw new IllegalStateException("Hadoop version :" + hadoopVersion + " not supported");
+            }
+
+            Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+            String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+            String pargs = username + " " + hadoopDir.getAbsolutePath() + " " + cluster.getMasterNode().getClusterIp()
+                    + " " + workingDir;
+            Event event = new Event("directory_transfer", nodeid, pargs);
+            Pattern p = new Pattern(null, 1, null, event);
+            addInitialDelay(p, 2, "sec");
+            ps.add(p);
+
+            nodeid = new Nodeid(new Value(null, nodeToBeAdded.getId()));
+            pargs = cluster.getUsername() + " " + hadoopDir.getAbsolutePath() + " " + nodeToBeAdded.getClusterIp()
+                    + " " + workingDir;
+            event = new Event("directory_transfer", nodeid, pargs);
+            p = new Pattern(null, 1, null, event);
+            addInitialDelay(p, 2, "sec");
+            ps.add(p);
+        }
+
+        Patterns patterns = new Patterns(ps);
+        return patterns;
+    }
+
     public Patterns getGenerateLogPattern(String asterixInstanceName, Cluster cluster, String outputDir) {
         List<Pattern> patternList = new ArrayList<Pattern>();
-        Map<String,String> nodeLogs = new HashMap<String,String>();
-        
+        Map<String, String> nodeLogs = new HashMap<String, String>();
+
         String username = cluster.getUsername() == null ? System.getProperty("user.name") : cluster.getUsername();
         String srcHost = cluster.getMasterNode().getClientIp();
         Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
@@ -495,15 +617,15 @@
         Event event = new Event("directory_copy", nodeid, pargs);
         Pattern p = new Pattern(null, 1, null, event);
         patternList.add(p);
-        nodeLogs.put(cluster.getMasterNode().getClusterIp(),srcDir);
+        nodeLogs.put(cluster.getMasterNode().getClusterIp(), srcDir);
         for (Node node : cluster.getNode()) {
             srcHost = node.getClusterIp();
             srcDir = node.getLogDir() == null ? cluster.getLogDir() : node.getLogDir();
-            if(nodeLogs.get(node.getClusterIp()) != null && nodeLogs.get(node.getClusterIp()).equals(srcDir)){
+            if (nodeLogs.get(node.getClusterIp()) != null && nodeLogs.get(node.getClusterIp()).equals(srcDir)) {
                 continue;
             }
             destDir = outputDir + File.separator + node.getId();
-            pargs = username + " " + srcHost +  " " + srcDir + " "  + destDir;
+            pargs = username + " " + srcHost + " " + srcDir + " " + destDir;
             event = new Event("directory_copy", nodeid, pargs);
             p = new Pattern(null, 1, null, event);
             patternList.add(p);
diff --git a/asterix-events/src/main/resources/events/backup/backup.sh b/asterix-events/src/main/resources/events/backup/backup.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh b/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/cc_start/cc_start.sh b/asterix-events/src/main/resources/events/cc_start/cc_start.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/events.xml b/asterix-events/src/main/resources/events/events.xml
index 01495cb..67a29a2 100644
--- a/asterix-events/src/main/resources/events/events.xml
+++ b/asterix-events/src/main/resources/events/events.xml
@@ -94,7 +94,14 @@
     <type>file_delete</type>
     <script>file/delete.sh</script>
     <description>Deletes a file on the local file system to a remote node</description>
-    <args>local_source_path destination_node destination_path</args>
+    <args>destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>file_create</type>
+    <script>file/create_file.sh</script>
+    <description>Creates a file on the local file system to a remote node</description>
+    <args>destination_node destination_path</args>
     <daemon>false</daemon>
   </event>
   <event>
diff --git a/asterix-events/src/main/resources/events/execute.sh b/asterix-events/src/main/resources/events/execute.sh
new file mode 100644
index 0000000..30f6c2f
--- /dev/null
+++ b/asterix-events/src/main/resources/events/execute.sh
@@ -0,0 +1,27 @@
+USERNAME=$1
+if [ ! -d $MANAGIX_HOME/logs ];
+then
+   mkdir -p $MANAGIX_HOME/logs
+fi
+LOGDIR=$MANAGIX_HOME/logs
+if [ $DAEMON == "false" ]; then 
+  if [ -z $USERNAME ]
+  then
+    cmd_output=$(ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS" >> $LOGDIR/execute.log
+    echo "$cmd_output"
+  else
+    echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS" >> $LOGDIR/execute.log
+    cmd_output=$(ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "$cmd_output"
+  fi  
+else 
+  if [ -z $USERNAME ];
+  then
+     echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS &" >> $LOGDIR/execute.log
+     ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  else
+     echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS &" >> $LOGDIR/execute.log
+     ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  fi   
+fi
diff --git a/asterix-events/src/main/resources/events/file/create_file.sh b/asterix-events/src/main/resources/events/file/create_file.sh
new file mode 100644
index 0000000..762a2d3
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/create_file.sh
@@ -0,0 +1,3 @@
+mkdir -p $1
+echo "touch $1/$2" >> ~/file_create.log
+touch $1/$2
diff --git a/asterix-events/src/main/resources/events/file/delete.sh b/asterix-events/src/main/resources/events/file/delete.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/file/dir_transfer.sh b/asterix-events/src/main/resources/events/file/dir_transfer.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/file/transfer.sh b/asterix-events/src/main/resources/events/file/transfer.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/hdfs/delete.sh b/asterix-events/src/main/resources/events/hdfs/delete.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/node_failure/nc_failure.sh b/asterix-events/src/main/resources/events/node_failure/nc_failure.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/node_info/node_info.sh b/asterix-events/src/main/resources/events/node_info/node_info.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/events/node_join/nc_join.sh b/asterix-events/src/main/resources/events/node_join/nc_join.sh
old mode 100755
new mode 100644
index e0254c9..a18fe09
--- a/asterix-events/src/main/resources/events/node_join/nc_join.sh
+++ b/asterix-events/src/main/resources/events/node_join/nc_join.sh
@@ -19,5 +19,7 @@
 then 
   mkdir -p $LOG_DIR
 fi
+
 cd $WORKING_DIR
+
 $ASTERIX_HOME/bin/asterixnc -node-id $NC_ID -cc-host $CC_HOST -cc-port $CLUSTER_NET_PORT  -cluster-net-ip-address $IP_LOCATION  -data-ip-address $IP_LOCATION -iodevices $IO_DEVICES -result-ip-address $IP_LOCATION &> $LOG_DIR/${NC_ID}.log
diff --git a/asterix-events/src/main/resources/events/node_restart/nc_restart.sh b/asterix-events/src/main/resources/events/node_restart/nc_restart.sh
old mode 100755
new mode 100644
diff --git a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.1.ddl.aql b/asterix-events/src/main/resources/events/prepare.sh
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.1.ddl.aql
rename to asterix-events/src/main/resources/events/prepare.sh
diff --git a/asterix-events/src/main/resources/events/restore/restore.sh b/asterix-events/src/main/resources/events/restore/restore.sh
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/schema/installer-conf.xsd b/asterix-events/src/main/resources/schema/installer-conf.xsd
similarity index 100%
rename from asterix-installer/src/main/resources/schema/installer-conf.xsd
rename to asterix-events/src/main/resources/schema/installer-conf.xsd
diff --git a/asterix-events/src/main/resources/scripts/execute.sh b/asterix-events/src/main/resources/scripts/execute.sh
old mode 100755
new mode 100644
diff --git a/asterix-events/src/main/resources/scripts/prepare.sh b/asterix-events/src/main/resources/scripts/prepare.sh
old mode 100755
new mode 100644
diff --git a/asterix-external-data/pom.xml b/asterix-external-data/pom.xml
index f8d5ea2..8f58b0f 100644
--- a/asterix-external-data/pom.xml
+++ b/asterix-external-data/pom.xml
@@ -1,18 +1,14 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
@@ -34,53 +30,62 @@
 				</configuration>
 			</plugin>
 			<plugin>
-				<groupId>org.codehaus.mojo</groupId>
-				<artifactId>appassembler-maven-plugin</artifactId>
-				<version>1.0</version>
+				<groupId>org.jvnet.jaxb2.maven2</groupId>
+				<artifactId>maven-jaxb2-plugin</artifactId>
 				<executions>
 					<execution>
-						<configuration>
-							<programs>
-								<program>
-									<mainClass>edu.uci.ics.asterix.drivers.AsterixWebServer</mainClass>
-									<name>asterix-web</name>
-								</program>
-								<program>
-									<mainClass>edu.uci.ics.asterix.drivers.AsterixClientDriver</mainClass>
-									<name>asterix-cmd</name>
-								</program>
-							</programs>
-							<repositoryLayout>flat</repositoryLayout>
-							<repositoryName>lib</repositoryName>
-						</configuration>
-						<phase>package</phase>
+						<id>configuration</id>
 						<goals>
-							<goal>assemble</goal>
+							<goal>generate</goal>
 						</goals>
+						<configuration>
+							<schemaDirectory>src/main/resources/schema</schemaDirectory>
+							<schemaIncludes>
+								<include>library.xsd</include>
+							</schemaIncludes>
+							<generatePackage>edu.uci.ics.asterix.external.library</generatePackage>
+							<generateDirectory>${project.build.directory}/generated-sources/configuration</generateDirectory>
+						</configuration>
 					</execution>
 				</executions>
 			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.7.2</version>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>2.2</version>
 				<configuration>
-					<!-- doesn't work from m2eclipse, currently <additionalClasspathElements> 
-						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement> 
-						</additionalClasspathElements> -->
-					<forkMode>pertest</forkMode>
-					<argLine>-enableassertions -Xmx${test.heap.size}m
-						-Dfile.encoding=UTF-8
-						-Djava.util.logging.config.file=src/test/resources/logging.properties</argLine>
 					<includes>
-						<include>**/*TestSuite.java</include>
-						<include>**/*Test.java</include>
+						<include>**/*.class</include>
+						<include>**/*.txt</include>
 					</includes>
 				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>test-jar</goal>
+						</goals>
+						<phase>package</phase>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<artifactId>maven-assembly-plugin</artifactId>
+				<version>2.2-beta-5</version>
+				<executions>
+					<execution>
+						<configuration>
+							<descriptor>src/main/assembly/binary-assembly-libzip.xml</descriptor>
+							<finalName>testlib-zip</finalName>
+						</configuration>
+						<phase>package</phase>
+						<goals>
+							<goal>attached</goal>
+						</goals>
+					</execution>
+				</executions>
 			</plugin>
 		</plugins>
 	</build>
-
 	<dependencies>
 		<dependency>
 			<groupId>javax.servlet</groupId>
@@ -108,6 +113,17 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-metadata</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>algebricks-compiler</artifactId>
+		</dependency>
+		<dependency>
 			<groupId>com.kenai.nbpwr</groupId>
 			<artifactId>org-apache-commons-io</artifactId>
 			<version>1.3.1-201002241208</version>
@@ -154,5 +170,4 @@
 			<version>1.0</version>
 		</dependency>
 	</dependencies>
-
-</project>
+</project> 
diff --git a/asterix-external-data/src/main/assembly/binary-assembly-libjar.xml b/asterix-external-data/src/main/assembly/binary-assembly-libjar.xml
new file mode 100644
index 0000000..d76174a
--- /dev/null
+++ b/asterix-external-data/src/main/assembly/binary-assembly-libjar.xml
@@ -0,0 +1,19 @@
+<assembly>
+  <id>binary-assembly</id>
+  <formats>
+    <format>jar</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <fileSets>
+    <fileSet>
+      <directory>target/test-classes</directory>
+      <outputDirectory></outputDirectory>
+      <includes>
+        <include>**</include>
+      </includes>
+      <excludes>
+        <exclude>**.xml</exclude>
+      </excludes>
+    </fileSet>
+  </fileSets>
+</assembly>
diff --git a/asterix-external-data/src/main/assembly/binary-assembly-libzip.xml b/asterix-external-data/src/main/assembly/binary-assembly-libzip.xml
new file mode 100644
index 0000000..bec6e32
--- /dev/null
+++ b/asterix-external-data/src/main/assembly/binary-assembly-libzip.xml
@@ -0,0 +1,23 @@
+<assembly>
+  <id>binary-assembly</id>
+  <formats>
+    <format>zip</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <fileSets>
+    <fileSet>
+      <directory>target</directory>
+      <outputDirectory></outputDirectory>
+      <includes>
+        <include>*test*.jar</include>
+      </includes>
+    </fileSet>
+    <fileSet>
+      <directory>src/test/resources</directory>
+      <outputDirectory></outputDirectory>
+      <includes>
+        <include>*.xml</include>
+      </includes>
+    </fileSet>
+  </fileSets>
+</assembly>
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java
index f1a3d6c..6880308 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java
@@ -14,21 +14,74 @@
  */
 package edu.uci.ics.asterix.external.adapter.factory;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 import edu.uci.ics.asterix.external.dataset.adapter.CNNFeedAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
- * A factory class for creating the @see {CNNFeedAdapter}.  
+ * A factory class for creating the @see {CNNFeedAdapter}.
  */
-public class CNNFeedAdapterFactory implements ITypedDatasetAdapterFactory {
+public class CNNFeedAdapterFactory implements ITypedAdapterFactory {
     private static final long serialVersionUID = 1L;
 
+    private Map<String, String> configuration;
+
+    private List<String> feedURLs = new ArrayList<String>();
+    private static Map<String, String> topicFeeds = new HashMap<String, String>();
+    private ARecordType recordType;
+
+    public static final String KEY_RSS_URL = "topic";
+    public static final String KEY_INTERVAL = "interval";
+    public static final String TOP_STORIES = "topstories";
+    public static final String WORLD = "world";
+    public static final String US = "us";
+    public static final String SPORTS = "sports";
+    public static final String BUSINESS = "business";
+    public static final String POLITICS = "politics";
+    public static final String CRIME = "crime";
+    public static final String TECHNOLOGY = "technology";
+    public static final String HEALTH = "health";
+    public static final String ENTERNTAINMENT = "entertainemnt";
+    public static final String TRAVEL = "travel";
+    public static final String LIVING = "living";
+    public static final String VIDEO = "video";
+    public static final String STUDENT = "student";
+    public static final String POPULAR = "popular";
+    public static final String RECENT = "recent";
+
+    private void initTopics() {
+        topicFeeds.put(TOP_STORIES, "http://rss.cnn.com/rss/cnn_topstories.rss");
+        topicFeeds.put(WORLD, "http://rss.cnn.com/rss/cnn_world.rss");
+        topicFeeds.put(US, "http://rss.cnn.com/rss/cnn_us.rss");
+        topicFeeds.put(SPORTS, "http://rss.cnn.com/rss/si_topstories.rss");
+        topicFeeds.put(BUSINESS, "http://rss.cnn.com/rss/money_latest.rss");
+        topicFeeds.put(POLITICS, "http://rss.cnn.com/rss/cnn_allpolitics.rss");
+        topicFeeds.put(CRIME, "http://rss.cnn.com/rss/cnn_crime.rss");
+        topicFeeds.put(TECHNOLOGY, "http://rss.cnn.com/rss/cnn_tech.rss");
+        topicFeeds.put(HEALTH, "http://rss.cnn.com/rss/cnn_health.rss");
+        topicFeeds.put(ENTERNTAINMENT, "http://rss.cnn.com/rss/cnn_showbiz.rss");
+        topicFeeds.put(LIVING, "http://rss.cnn.com/rss/cnn_living.rss");
+        topicFeeds.put(VIDEO, "http://rss.cnn.com/rss/cnn_freevideo.rss");
+        topicFeeds.put(TRAVEL, "http://rss.cnn.com/rss/cnn_travel.rss");
+        topicFeeds.put(STUDENT, "http://rss.cnn.com/rss/cnn_studentnews.rss");
+        topicFeeds.put(POPULAR, "http://rss.cnn.com/rss/cnn_mostpopular.rss");
+        topicFeeds.put(RECENT, "http://rss.cnn.com/rss/cnn_latest.rss");
+    }
+
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration) throws Exception {
-        CNNFeedAdapter cnnFeedAdapter = new CNNFeedAdapter();
-        cnnFeedAdapter.configure(configuration);
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        CNNFeedAdapter cnnFeedAdapter = new CNNFeedAdapter(configuration, recordType, ctx);
         return cnnFeedAdapter;
     }
 
@@ -37,4 +90,61 @@
         return "cnn_feed";
     }
 
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.TYPED;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) throws Exception {
+        this.configuration = configuration;
+        String rssURLProperty = (String) configuration.get(KEY_RSS_URL);
+        if (rssURLProperty == null) {
+            throw new IllegalArgumentException("no rss url provided");
+        }
+        initializeFeedURLs(rssURLProperty);
+        recordType = new ARecordType("FeedRecordType", new String[] { "id", "title", "description", "link" },
+                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING },
+                false);
+
+    }
+
+    private void initializeFeedURLs(String rssURLProperty) {
+        feedURLs.clear();
+        String[] rssTopics = rssURLProperty.split(",");
+        initTopics();
+        for (String topic : rssTopics) {
+            String feedURL = topicFeeds.get(topic);
+            if (feedURL == null) {
+                throw new IllegalArgumentException(" unknown topic :" + topic + " please choose from the following "
+                        + getValidTopics());
+            }
+            feedURLs.add(feedURL);
+        }
+    }
+
+    private static String getValidTopics() {
+        StringBuilder builder = new StringBuilder();
+        for (String key : topicFeeds.keySet()) {
+            builder.append(key);
+            builder.append(" ");
+        }
+        return new String(builder);
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return new AlgebricksCountPartitionConstraint(feedURLs.size());
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return recordType;
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java
index 4ca3d72..af057c9 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java
@@ -14,6 +14,7 @@
  */
 package edu.uci.ics.asterix.external.adapter.factory;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
@@ -22,10 +23,18 @@
 import org.apache.hadoop.mapred.JobConf;
 
 import edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.ICCContext;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksException;
 import edu.uci.ics.hyracks.hdfs.dataflow.ConfFactory;
 import edu.uci.ics.hyracks.hdfs.dataflow.InputSplitsFactory;
 import edu.uci.ics.hyracks.hdfs.scheduler.Scheduler;
@@ -34,7 +43,7 @@
  * A factory class for creating an instance of HDFSAdapter
  */
 @SuppressWarnings("deprecation")
-public class HDFSAdapterFactory implements IGenericDatasetAdapterFactory {
+public class HDFSAdapterFactory extends StreamBasedAdapterFactory implements IGenericAdapterFactory {
     private static final long serialVersionUID = 1L;
 
     public static final String HDFS_ADAPTER_NAME = "hdfs";
@@ -52,7 +61,22 @@
     private boolean executed[];
     private InputSplitsFactory inputSplitsFactory;
     private ConfFactory confFactory;
-    private boolean setup = false;
+    private IAType atype;
+    private boolean configured = false;
+    public static Scheduler hdfsScheduler;
+    private static boolean initialized = false;
+
+    private static Scheduler initializeHDFSScheduler() {
+        ICCContext ccContext = AsterixAppContextInfo.getInstance().getCCApplicationContext().getCCContext();
+        Scheduler scheduler = null;
+        try {
+            scheduler = new Scheduler(ccContext.getClusterControllerInfo().getClientNetAddress(), ccContext
+                    .getClusterControllerInfo().getClientNetPort());
+        } catch (HyracksException e) {
+            throw new IllegalStateException("Cannot obtain hdfs scheduler");
+        }
+        return scheduler;
+    }
 
     private static final Map<String, String> formatClassNames = initInputFormatMap();
 
@@ -64,30 +88,12 @@
     }
 
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType atype) throws Exception {
-        if (!setup) {
-            /** set up the factory --serializable stuff --- this if-block should be called only once for each factory instance */
-            configureJobConf(configuration);
-            JobConf conf = configureJobConf(configuration);
-            confFactory = new ConfFactory(conf);
-
-            clusterLocations = (AlgebricksPartitionConstraint) configuration.get(CLUSTER_LOCATIONS);
-            int numPartitions = ((AlgebricksAbsolutePartitionConstraint) clusterLocations).getLocations().length;
-
-            InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, numPartitions);
-            inputSplitsFactory = new InputSplitsFactory(inputSplits);
-
-            Scheduler scheduler = (Scheduler) configuration.get(SCHEDULER);
-            readSchedule = scheduler.getLocationConstraints(inputSplits);
-            executed = new boolean[readSchedule.length];
-            Arrays.fill(executed, false);
-
-            setup = true;
-        }
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
         JobConf conf = confFactory.getConf();
         InputSplit[] inputSplits = inputSplitsFactory.getSplits();
-        HDFSAdapter hdfsAdapter = new HDFSAdapter(atype, readSchedule, executed, inputSplits, conf, clusterLocations);
-        hdfsAdapter.configure(configuration);
+        String nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
+        HDFSAdapter hdfsAdapter = new HDFSAdapter(atype, readSchedule, executed, inputSplits, conf, nodeName,
+                parserFactory, ctx);
         return hdfsAdapter;
     }
 
@@ -96,7 +102,7 @@
         return HDFS_ADAPTER_NAME;
     }
 
-    private JobConf configureJobConf(Map<String, Object> configuration) throws Exception {
+    private JobConf configureJobConf(Map<String, String> configuration) throws Exception {
         JobConf conf = new JobConf();
         conf.set("fs.default.name", ((String) configuration.get(KEY_HDFS_URL)).trim());
         conf.set("fs.hdfs.impl", "org.apache.hadoop.hdfs.DistributedFileSystem");
@@ -107,4 +113,64 @@
         return conf;
     }
 
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.GENERIC;
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        if (!configured) {
+            throw new IllegalStateException("Adapter factory has not been configured yet");
+        }
+        return (AlgebricksPartitionConstraint) clusterLocations;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration, ARecordType outputType) throws Exception {
+        if (!initialized) {
+            hdfsScheduler = initializeHDFSScheduler();
+            initialized = true;
+        }
+        this.configuration = configuration;
+        JobConf conf = configureJobConf(configuration);
+        confFactory = new ConfFactory(conf);
+
+        clusterLocations = getClusterLocations();
+        int numPartitions = ((AlgebricksAbsolutePartitionConstraint) clusterLocations).getLocations().length;
+
+        InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, numPartitions);
+        inputSplitsFactory = new InputSplitsFactory(inputSplits);
+
+        readSchedule = hdfsScheduler.getLocationConstraints(inputSplits);
+        executed = new boolean[readSchedule.length];
+        Arrays.fill(executed, false);
+        configured = true;
+
+        atype = (IAType) outputType;
+        configureFormat(atype);
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    private static AlgebricksPartitionConstraint getClusterLocations() {
+        ArrayList<String> locs = new ArrayList<String>();
+        Map<String, String[]> stores = AsterixAppContextInfo.getInstance().getMetadataProperties().getStores();
+        for (String i : stores.keySet()) {
+            String[] nodeStores = stores.get(i);
+            int numIODevices = AsterixClusterProperties.INSTANCE.getNumberOfIODevices(i);
+            for (int j = 0; j < nodeStores.length; j++) {
+                for (int k = 0; k < numIODevices; k++) {
+                    locs.add(i);
+                }
+            }
+        }
+        String[] cluster = new String[locs.size()];
+        cluster = locs.toArray(cluster);
+        return new AlgebricksAbsolutePartitionConstraint(cluster);
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java
index 409eb7a..991dadb 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java
@@ -23,10 +23,14 @@
 
 import edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter;
 import edu.uci.ics.asterix.external.dataset.adapter.HiveAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.hdfs.dataflow.ConfFactory;
 import edu.uci.ics.hyracks.hdfs.dataflow.InputSplitsFactory;
 import edu.uci.ics.hyracks.hdfs.scheduler.Scheduler;
@@ -35,7 +39,7 @@
  * A factory class for creating an instance of HiveAdapter
  */
 @SuppressWarnings("deprecation")
-public class HiveAdapterFactory implements IGenericDatasetAdapterFactory {
+public class HiveAdapterFactory extends StreamBasedAdapterFactory implements IGenericAdapterFactory {
     private static final long serialVersionUID = 1L;
 
     public static final String HDFS_ADAPTER_NAME = "hdfs";
@@ -65,7 +69,8 @@
     private InputSplitsFactory inputSplitsFactory;
     private ConfFactory confFactory;
     private transient AlgebricksPartitionConstraint clusterLocations;
-    private boolean setup = false;
+    private boolean configured = false;
+    private IAType atype;
 
     private static final Map<String, String> formatClassNames = initInputFormatMap();
 
@@ -77,30 +82,12 @@
     }
 
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType atype) throws Exception {
-        if (!setup) {
-            /** set up the factory --serializable stuff --- this if-block should be called only once for each factory instance */
-            configureJobConf(configuration);
-            JobConf conf = configureJobConf(configuration);
-            confFactory = new ConfFactory(conf);
-
-            clusterLocations = (AlgebricksPartitionConstraint) configuration.get(CLUSTER_LOCATIONS);
-            int numPartitions = ((AlgebricksAbsolutePartitionConstraint) clusterLocations).getLocations().length;
-
-            InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, numPartitions);
-            inputSplitsFactory = new InputSplitsFactory(inputSplits);
-
-            Scheduler scheduler = (Scheduler) configuration.get(SCHEDULER);
-            readSchedule = scheduler.getLocationConstraints(inputSplits);
-            executed = new boolean[readSchedule.length];
-            Arrays.fill(executed, false);
-
-            setup = true;
-        }
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
         JobConf conf = confFactory.getConf();
         InputSplit[] inputSplits = inputSplitsFactory.getSplits();
-        HiveAdapter hiveAdapter = new HiveAdapter(atype, readSchedule, executed, inputSplits, conf, clusterLocations);
-        hiveAdapter.configure(configuration);
+        String nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
+        HiveAdapter hiveAdapter = new HiveAdapter(atype, readSchedule, executed, inputSplits, conf, clusterLocations,
+                nodeName, parserFactory, ctx);
         return hiveAdapter;
     }
 
@@ -109,7 +96,43 @@
         return "hive";
     }
 
-    private JobConf configureJobConf(Map<String, Object> configuration) throws Exception {
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.GENERIC;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration, ARecordType outputType) throws Exception {
+        if (!configured) {
+            /** set up the factory --serializable stuff --- this if-block should be called only once for each factory instance */
+            configureJobConf(configuration);
+            JobConf conf = configureJobConf(configuration);
+            confFactory = new ConfFactory(conf);
+
+            clusterLocations = AsterixClusterProperties.INSTANCE.getClusterLocations();
+            int numPartitions = ((AlgebricksAbsolutePartitionConstraint) clusterLocations).getLocations().length;
+
+            InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, numPartitions);
+            inputSplitsFactory = new InputSplitsFactory(inputSplits);
+
+            Scheduler scheduler = HDFSAdapterFactory.hdfsScheduler;
+            readSchedule = scheduler.getLocationConstraints(inputSplits);
+            executed = new boolean[readSchedule.length];
+            Arrays.fill(executed, false);
+
+            atype = (IAType) outputType;
+            configureFormat(atype);
+            configured = true;
+        }
+
+    }
+
+    private JobConf configureJobConf(Map<String, String> configuration) throws Exception {
         JobConf conf = new JobConf();
 
         /** configure hive */
@@ -121,7 +144,7 @@
             tablePath = configuration.get(HIVE_WAREHOUSE_DIR) + "/" + tablePath + ".db" + "/"
                     + configuration.get(HIVE_TABLE);
         }
-        configuration.put(HDFSAdapter.KEY_PATH, tablePath);
+        configuration.put(HDFSAdapterFactory.KEY_PATH, tablePath);
         if (!configuration.get(KEY_FORMAT).equals(FORMAT_DELIMITED_TEXT)) {
             throw new IllegalArgumentException("format" + configuration.get(KEY_FORMAT) + " is not supported");
         }
@@ -141,4 +164,11 @@
                 (String) formatClassNames.get(((String) configuration.get(KEY_INPUT_FORMAT)).trim()));
         return conf;
     }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java
deleted file mode 100644
index 5cb6777..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.adapter.factory;
-
-import java.io.Serializable;
-
-/**
- * Base interface for IGenericDatasetAdapterFactory and ITypedDatasetAdapterFactory.
- * Acts as a marker interface indicating that the implementation provides functionality
- * for creating an adapter.
- */
-public interface IAdapterFactory extends Serializable {
-
-    /**
-     * Returns the display name corresponding to the Adapter type that is created by the factory.
-     * 
-     * @return the display name
-     */
-    public String getName();
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java
deleted file mode 100644
index 0a178a7..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.adapter.factory;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * A base interface for an adapter factory that creates instance of an adapter kind that
- * is 'generic' in nature. A 'typed' adapter returns records with a configurable datatype.
- */
-public interface IGenericDatasetAdapterFactory extends IAdapterFactory {
-
-    public static final String KEY_TYPE_NAME = "output-type-name";
-
-    /**
-     * Creates an instance of IDatasourceAdapter.
-     * 
-     * @param configuration
-     *            The configuration parameters for the adapter that is instantiated.
-     *            The passed-in configuration is used to configure the created instance of the adapter.
-     * @param atype
-     *            The type for the ADM records that are returned by the adapter.
-     * @return An instance of IDatasourceAdapter.
-     * @throws Exception
-     */
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType atype) throws Exception;
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java
deleted file mode 100644
index 674bf52..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.adapter.factory;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
-
-/**
- * A base interface for an adapter factory that creates instance of an adapter kind that
- * is 'typed' in nature. A 'typed' adapter returns records with a pre-defined datatype.
- */
-public interface ITypedDatasetAdapterFactory extends IAdapterFactory {
-
-    /**
-     * Creates an instance of IDatasourceAdapter.
-     * 
-     * @param configuration
-     *            The configuration parameters for the adapter that is instantiated.
-     *            The passed-in configuration is used to configure the created instance of the adapter.
-     * @return An instance of IDatasourceAdapter.
-     * @throws Exception
-     */
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration) throws Exception;
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java
index e680232..7ea5d18 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java
@@ -14,25 +14,37 @@
  */
 package edu.uci.ics.asterix.external.adapter.factory;
 
+import java.io.File;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
 /**
  * Factory class for creating an instance of NCFileSystemAdapter. An
  * NCFileSystemAdapter reads external data residing on the local file system of
  * an NC.
  */
-public class NCFileSystemAdapterFactory implements IGenericDatasetAdapterFactory {
+public class NCFileSystemAdapterFactory extends StreamBasedAdapterFactory implements IGenericAdapterFactory {
     private static final long serialVersionUID = 1L;
+
     public static final String NC_FILE_SYSTEM_ADAPTER_NAME = "localfs";
 
+    private IAType sourceDatatype;
+    private FileSplit[] fileSplits;
+
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType atype) throws Exception {
-        NCFileSystemAdapter fsAdapter = new NCFileSystemAdapter(atype);
-        fsAdapter.configure(configuration);
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        NCFileSystemAdapter fsAdapter = new NCFileSystemAdapter(fileSplits, parserFactory, sourceDatatype, ctx);
         return fsAdapter;
     }
 
@@ -40,4 +52,60 @@
     public String getName() {
         return NC_FILE_SYSTEM_ADAPTER_NAME;
     }
+
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.GENERIC;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration, ARecordType outputType) throws Exception {
+        this.configuration = configuration;
+        String[] splits = ((String) configuration.get(KEY_PATH)).split(",");
+        IAType sourceDatatype = (IAType) outputType;
+        configureFileSplits(splits);
+        configureFormat(sourceDatatype);
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return configurePartitionConstraint();
+    }
+
+    private void configureFileSplits(String[] splits) throws AsterixException {
+        if (fileSplits == null) {
+            fileSplits = new FileSplit[splits.length];
+            String nodeName;
+            String nodeLocalPath;
+            int count = 0;
+            String trimmedValue;
+            for (String splitPath : splits) {
+                trimmedValue = splitPath.trim();
+                if (!trimmedValue.contains("://")) {
+                    throw new AsterixException("Invalid path: " + splitPath
+                            + "\nUsage- path=\"Host://Absolute File Path\"");
+                }
+                nodeName = trimmedValue.split(":")[0];
+                nodeLocalPath = trimmedValue.split("://")[1];
+                FileSplit fileSplit = new FileSplit(nodeName, new FileReference(new File(nodeLocalPath)));
+                fileSplits[count++] = fileSplit;
+            }
+        }
+    }
+
+    private AlgebricksPartitionConstraint configurePartitionConstraint() throws AsterixException {
+        String[] locs = new String[fileSplits.length];
+        String location;
+        for (int i = 0; i < fileSplits.length; i++) {
+            location = getNodeResolver().resolveNode(fileSplits[i].getNodeName());
+            locs[i] = location;
+        }
+        return new AlgebricksAbsolutePartitionConstraint(locs);
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java
index 232d5e8..9c137e1 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java
@@ -16,23 +16,31 @@
 
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
 import edu.uci.ics.asterix.external.dataset.adapter.PullBasedTwitterAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
  * Factory class for creating an instance of PullBasedTwitterAdapter.
  * This adapter provides the functionality of fetching tweets from Twitter service
  * via pull-based Twitter API.
  */
-public class PullBasedTwitterAdapterFactory implements ITypedDatasetAdapterFactory {
+public class PullBasedTwitterAdapterFactory implements ITypedAdapterFactory {
     private static final long serialVersionUID = 1L;
     public static final String PULL_BASED_TWITTER_ADAPTER_NAME = "pull_twitter";
 
+    private Map<String, String> configuration;
+    private static ARecordType recordType;
+
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration) throws Exception {
-        PullBasedTwitterAdapter twitterAdapter = new PullBasedTwitterAdapter();
-        twitterAdapter.configure(configuration);
-        return twitterAdapter;
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        return new PullBasedTwitterAdapter(configuration, ctx);
     }
 
     @Override
@@ -40,4 +48,39 @@
         return PULL_BASED_TWITTER_ADAPTER_NAME;
     }
 
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.TYPED;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) throws Exception {
+        this.configuration = configuration;
+        if (recordType != null) {
+            String[] fieldNames = { "id", "username", "location", "text", "timestamp" };
+            IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                    BuiltinType.ASTRING };
+            try {
+                recordType = new ARecordType("FeedRecordType", fieldNames, fieldTypes, false);
+            } catch (Exception e) {
+                throw new IllegalStateException("Unable to create adapter output type");
+            }
+        }
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return new AlgebricksCountPartitionConstraint(1);
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return recordType;
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java
index ab18455..cc366f6 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java
@@ -14,23 +14,39 @@
  */
 package edu.uci.ics.asterix.external.adapter.factory;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
 import edu.uci.ics.asterix.external.dataset.adapter.RSSFeedAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IAdapterFactory;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
  * Factory class for creating an instance of @see {RSSFeedAdapter}.
  * RSSFeedAdapter provides the functionality of fetching an RSS based feed.
  */
-public class RSSFeedAdapterFactory implements ITypedDatasetAdapterFactory {
+public class RSSFeedAdapterFactory implements ITypedAdapterFactory {
     private static final long serialVersionUID = 1L;
     public static final String RSS_FEED_ADAPTER_NAME = "rss_feed";
 
+    public static final String KEY_RSS_URL = "url";
+    public static final String KEY_INTERVAL = "interval";
+
+    private Map<String, String> configuration;
+    private ARecordType recordType;
+    private List<String> feedURLs = new ArrayList<String>();
+
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration) throws Exception {
-        RSSFeedAdapter rssFeedAdapter = new RSSFeedAdapter();
-        rssFeedAdapter.configure(configuration);
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        RSSFeedAdapter rssFeedAdapter = new RSSFeedAdapter(configuration, recordType, ctx);
         return rssFeedAdapter;
     }
 
@@ -39,4 +55,51 @@
         return "rss_feed";
     }
 
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.TYPED;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) throws Exception {
+        this.configuration = configuration;
+        String rssURLProperty = (String) configuration.get(KEY_RSS_URL);
+        if (rssURLProperty == null) {
+            throw new IllegalArgumentException("no rss url provided");
+        }
+        initializeFeedURLs(rssURLProperty);
+        configurePartitionConstraints();
+        recordType = new ARecordType("FeedRecordType", new String[] { "id", "title", "description", "link" },
+                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING },
+                false);
+
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return new AlgebricksCountPartitionConstraint(feedURLs.size());
+    }
+
+    private void initializeFeedURLs(String rssURLProperty) {
+        feedURLs.clear();
+        String[] feedURLProperty = rssURLProperty.split(",");
+        for (String feedURL : feedURLProperty) {
+            feedURLs.add(feedURL);
+        }
+    }
+
+    protected void configurePartitionConstraints() {
+
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return recordType;
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/StreamBasedAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/StreamBasedAdapterFactory.java
new file mode 100644
index 0000000..d80520d
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/StreamBasedAdapterFactory.java
@@ -0,0 +1,147 @@
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.util.DNSResolverFactory;
+import edu.uci.ics.asterix.external.util.INodeResolver;
+import edu.uci.ics.asterix.external.util.INodeResolverFactory;
+import edu.uci.ics.asterix.metadata.feeds.ConditionalPushTupleParserFactory;
+import edu.uci.ics.asterix.metadata.feeds.IAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
+import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.LongParserFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+public abstract class StreamBasedAdapterFactory implements IAdapterFactory {
+
+    private static final long serialVersionUID = 1L;
+    private static final Logger LOGGER = Logger.getLogger(StreamBasedAdapterFactory.class.getName());
+
+    protected Map<String, String> configuration;
+    protected static INodeResolver nodeResolver;
+    private static final INodeResolver DEFAULT_NODE_RESOLVER = new DNSResolverFactory().createNodeResolver();
+
+    public static final String KEY_FORMAT = "format";
+    public static final String KEY_PARSER_FACTORY = "parser";
+    public static final String KEY_DELIMITER = "delimiter";
+    public static final String KEY_PATH = "path";
+    public static final String KEY_SOURCE_DATATYPE = "output-type-name";
+    public static final String FORMAT_DELIMITED_TEXT = "delimited-text";
+    public static final String FORMAT_ADM = "adm";
+    public static final String NODE_RESOLVER_FACTORY_PROPERTY = "node.Resolver";
+    public static final String BATCH_SIZE = "batch-size";
+    public static final String BATCH_INTERVAL = "batch-interval";
+
+    protected ITupleParserFactory parserFactory;
+    protected ITupleParser parser;
+
+    protected static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
+    static {
+        typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
+        typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
+        typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
+        typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
+        typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
+    }
+
+    protected ITupleParserFactory getDelimitedDataTupleParserFactory(ARecordType recordType, boolean conditionalPush)
+            throws AsterixException {
+        int n = recordType.getFieldTypes().length;
+        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
+        for (int i = 0; i < n; i++) {
+            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
+            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
+            if (vpf == null) {
+                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
+            }
+            fieldParserFactories[i] = vpf;
+        }
+        String delimiterValue = (String) configuration.get(KEY_DELIMITER);
+        if (delimiterValue != null && delimiterValue.length() > 1) {
+            throw new AsterixException("improper delimiter");
+        }
+
+        Character delimiter = delimiterValue.charAt(0);
+
+        return conditionalPush ? new ConditionalPushTupleParserFactory(recordType, fieldParserFactories, delimiter,
+                configuration) : new NtDelimitedDataTupleParserFactory(recordType, fieldParserFactories, delimiter);
+    }
+
+    protected ITupleParserFactory getADMDataTupleParserFactory(ARecordType recordType, boolean conditionalPush)
+            throws AsterixException {
+        try {
+            return conditionalPush ? new ConditionalPushTupleParserFactory(recordType, configuration)
+                    : new AdmSchemafullRecordParserFactory(recordType);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    protected void configureFormat(IAType sourceDatatype) throws Exception {
+        String propValue = (String) configuration.get(BATCH_SIZE);
+        int batchSize = propValue != null ? Integer.parseInt(propValue) : -1;
+        propValue = (String) configuration.get(BATCH_INTERVAL);
+        long batchInterval = propValue != null ? Long.parseLong(propValue) : -1;
+        boolean conditionalPush = batchSize > 0 || batchInterval > 0;
+
+        String parserFactoryClassname = (String) configuration.get(KEY_PARSER_FACTORY);
+        if (parserFactoryClassname == null) {
+            String specifiedFormat = (String) configuration.get(KEY_FORMAT);
+            if (specifiedFormat == null) {
+                throw new IllegalArgumentException(" Unspecified data format");
+            } else if (FORMAT_DELIMITED_TEXT.equalsIgnoreCase(specifiedFormat)) {
+                parserFactory = getDelimitedDataTupleParserFactory((ARecordType) sourceDatatype, conditionalPush);
+            } else if (FORMAT_ADM.equalsIgnoreCase((String) configuration.get(KEY_FORMAT))) {
+                parserFactory = getADMDataTupleParserFactory((ARecordType) sourceDatatype, conditionalPush);
+            } else {
+                throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
+            }
+        } else {
+            parserFactory = (ITupleParserFactory) Class.forName(parserFactoryClassname).newInstance();
+        }
+
+    }
+
+    protected INodeResolver getNodeResolver() {
+        if (nodeResolver == null) {
+            nodeResolver = initNodeResolver();
+        }
+        return nodeResolver;
+    }
+
+    private static INodeResolver initNodeResolver() {
+        INodeResolver nodeResolver = null;
+        String configuredNodeResolverFactory = System.getProperty(NODE_RESOLVER_FACTORY_PROPERTY);
+        if (configuredNodeResolverFactory != null) {
+            try {
+                nodeResolver = ((INodeResolverFactory) (Class.forName(configuredNodeResolverFactory).newInstance()))
+                        .createNodeResolver();
+
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.WARNING)) {
+                    LOGGER.log(Level.WARNING, "Unable to create node resolver from the configured classname "
+                            + configuredNodeResolverFactory + "\n" + e.getMessage());
+                }
+                nodeResolver = DEFAULT_NODE_RESOLVER;
+            }
+        } else {
+            nodeResolver = DEFAULT_NODE_RESOLVER;
+        }
+        return nodeResolver;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java
deleted file mode 100644
index a48cfb8..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.operator;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
-import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
-import edu.uci.ics.asterix.external.adapter.factory.ITypedDatasetAdapterFactory;
-import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
-
-/**
- * Operator responsible for ingesting data from an external source. This
- * operator uses a (configurable) adapter associated with the feed dataset.
- */
-public class FeedIntakeOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
-
-    private static final long serialVersionUID = 1L;
-
-    private final String adapterFactoryClassName;
-    private final Map<String, Object> adapterConfiguration;
-    private final IAType atype;
-    private final FeedId feedId;
-    private final IAdapterFactory datasourceAdapterFactory;
-
-    public FeedIntakeOperatorDescriptor(JobSpecification spec, FeedId feedId, String adapter,
-            Map<String, Object> arguments, ARecordType atype, RecordDescriptor rDesc,
-            IAdapterFactory datasourceAdapterFactory) {
-        super(spec, 1, 1);
-        recordDescriptors[0] = rDesc;
-        this.adapterFactoryClassName = adapter;
-        this.adapterConfiguration = arguments;
-        this.atype = atype;
-        this.feedId = feedId;
-        this.datasourceAdapterFactory = datasourceAdapterFactory;
-    }
-
-    public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
-            IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions)
-            throws HyracksDataException {
-        ITypedDatasourceAdapter adapter;
-        try {
-            if (datasourceAdapterFactory instanceof IGenericDatasetAdapterFactory) {
-                adapter = (ITypedDatasourceAdapter) ((IGenericDatasetAdapterFactory) datasourceAdapterFactory)
-                        .createAdapter(adapterConfiguration, atype);
-            } else if (datasourceAdapterFactory instanceof ITypedDatasetAdapterFactory) {
-                adapter = (ITypedDatasourceAdapter) ((ITypedDatasetAdapterFactory) datasourceAdapterFactory)
-                        .createAdapter(adapterConfiguration);
-            } else {
-                throw new IllegalStateException(" Unknown adapter factory type for " + adapterFactoryClassName);
-            }
-            adapter.initialize(ctx);
-        } catch (Exception e) {
-            throw new HyracksDataException("initialization of adapter failed", e);
-        }
-        return new FeedIntakeOperatorNodePushable(feedId, adapter, partition);
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java
deleted file mode 100644
index 31470f3..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.operator;
-
-import java.nio.ByteBuffer;
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.common.api.AsterixThreadExecutor;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
-import edu.uci.ics.asterix.external.feed.lifecycle.AlterFeedMessage;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedManager;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedManager;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-
-/**
- * The runtime for @see{FeedIntakeOperationDescriptor}
- */
-public class FeedIntakeOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
-
-    private final IDatasourceAdapter adapter;
-    private final int partition;
-    private final IFeedManager feedManager;
-    private final FeedId feedId;
-    private final LinkedBlockingQueue<IFeedMessage> inbox;
-    private FeedInboxMonitor feedInboxMonitor;
-
-    public FeedIntakeOperatorNodePushable(FeedId feedId, IDatasourceAdapter adapter, int partition) {
-        this.adapter = adapter;
-        this.partition = partition;
-        this.feedManager = (IFeedManager) FeedManager.INSTANCE;
-        this.feedId = feedId;
-        inbox = new LinkedBlockingQueue<IFeedMessage>();
-    }
-
-    @Override
-    public void open() throws HyracksDataException {
-        if (adapter instanceof IManagedFeedAdapter) {
-            feedInboxMonitor = new FeedInboxMonitor((IManagedFeedAdapter) adapter, inbox, partition);
-            AsterixThreadExecutor.INSTANCE.execute(feedInboxMonitor);
-            feedManager.registerFeedMsgQueue(feedId, inbox);
-        }
-        writer.open();
-        try {
-            adapter.start(partition, writer);
-        } catch (Exception e) {
-            e.printStackTrace();
-            throw new HyracksDataException(e);
-            /* 
-             we do not throw an exception, but allow the operator to close
-             gracefully throwing an exception here would result in a job abort and a
-             transaction roll back that undoes all the work done so far.
-             */
-
-        } finally {
-            writer.close();
-            if (adapter instanceof IManagedFeedAdapter) {
-                feedManager.unregisterFeedMsgQueue(feedId, inbox);
-            }
-        }
-    }
-
-    @Override
-    public void fail() throws HyracksDataException {
-        writer.close();
-    }
-
-    @Override
-    public void close() throws HyracksDataException {
-        
-    }
-
-    @Override
-    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
-        // do nothing
-    }
-}
-
-class FeedInboxMonitor extends Thread {
-
-    private LinkedBlockingQueue<IFeedMessage> inbox;
-    private final IManagedFeedAdapter adapter;
-
-    public FeedInboxMonitor(IManagedFeedAdapter adapter, LinkedBlockingQueue<IFeedMessage> inbox, int partition) {
-        this.inbox = inbox;
-        this.adapter = adapter;
-    }
-
-    @Override
-    public void run() {
-        while (true) {
-            try {
-                IFeedMessage feedMessage = inbox.take();
-                switch (feedMessage.getMessageType()) {
-                    case STOP:
-                        adapter.stop();
-                        break;
-                    case ALTER:
-                        adapter.alter(((AlterFeedMessage) feedMessage).getAlteredConfParams());
-                        break;
-                }
-            } catch (InterruptedException ie) {
-                break;
-            } catch (Exception e) {
-                throw new RuntimeException(e);
-            }
-        }
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java
deleted file mode 100644
index b6bacef..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.operator;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedManager;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedManager;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
-
-/**
- * Runtime for the @see{FeedMessageOperatorDescriptor}
- */
-public class FeedMessageOperatorNodePushable extends AbstractUnaryOutputSourceOperatorNodePushable {
-
-    private final FeedId feedId;
-    private final List<IFeedMessage> feedMessages;
-    private IFeedManager feedManager;
-
-    public FeedMessageOperatorNodePushable(IHyracksTaskContext ctx, FeedId feedId, List<IFeedMessage> feedMessages,
-            boolean applyToAll, int partition, int nPartitions) {
-        this.feedId = feedId;
-        if (applyToAll) {
-            this.feedMessages = feedMessages;
-        } else {
-            this.feedMessages = new ArrayList<IFeedMessage>();
-            feedMessages.add(feedMessages.get(partition));
-        }
-        feedManager = (IFeedManager) FeedManager.INSTANCE;
-    }
-
-    @Override
-    public void initialize() throws HyracksDataException {
-        try {
-            writer.open();
-            for (IFeedMessage feedMessage : feedMessages) {
-                feedManager.deliverMessage(feedId, feedMessage);
-            }
-        } catch (Exception e) {
-            throw new HyracksDataException(e);
-        } finally {
-            writer.close();
-        }
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java
deleted file mode 100644
index f96a030..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.dataset.adapter;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.LongParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
-
-/**
- * Represents the base class that is required to be extended by every
- * implementation of the IDatasourceAdapter interface.
- */
-public abstract class AbstractDatasourceAdapter implements IDatasourceAdapter {
-
-    private static final long serialVersionUID = 1L;
-
-    protected Map<String, Object> configuration;
-    protected transient AlgebricksPartitionConstraint partitionConstraint;
-    protected IAType atype;
-    protected IHyracksTaskContext ctx;
-    protected AdapterType adapterType;
-
-    protected static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
-    static {
-        typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
-    }
-
-    protected static final Map<String, Object> formatToParserFactoryMap = initializeFormatParserFactoryMap();
-
-    public static final String KEY_FORMAT = "format";
-    public static final String KEY_PARSER_FACTORY = "parser";
-    public static final String FORMAT_DELIMITED_TEXT = "delimited-text";
-    public static final String FORMAT_ADM = "adm";
-
-    private static Map<String, Object> initializeFormatParserFactoryMap() {
-        Map<String, Object> map = new HashMap<String, Object>();
-        map.put(FORMAT_DELIMITED_TEXT, "edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory");
-        map.put(FORMAT_ADM, "edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory");
-        return map;
-    }
-
-    /**
-     * Get the partition constraint chosen by the adapter.
-     * An adapter may have preferences as to where it needs to be instantiated and used.
-     */
-    public abstract AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
-
-    /**
-     * Get the configured value from the adapter configuration parameters, corresponding to the an attribute.
-     * 
-     * @param attribute
-     *            The attribute whose value needs to be obtained.
-     */
-    public Object getAdapterProperty(String attribute) {
-        return configuration.get(attribute);
-    }
-
-    /**
-     * Get the adapter configuration parameters.
-     * 
-     * @return A Map<String,String> instance representing the adapter configuration.
-     */
-    public Map<String, Object> getConfiguration() {
-        return configuration;
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
index 9112aae..017b511 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
@@ -14,94 +14,25 @@
  */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
  * An Adapter that provides the functionality of fetching news feed from CNN service
  * The Adapter provides news feed as ADM records.
  */
-public class CNNFeedAdapter extends RSSFeedAdapter implements IDatasourceAdapter, IManagedFeedAdapter {
+public class CNNFeedAdapter extends RSSFeedAdapter implements IDatasourceAdapter, IFeedAdapter {
 
-    private static final long serialVersionUID = 2523303758114582251L;
-    private List<String> feedURLs = new ArrayList<String>();
-    private static Map<String, String> topicFeeds = new HashMap<String, String>();
+    private static final long serialVersionUID = 1L;
 
-    public static final String KEY_RSS_URL = "topic";
-    public static final String KEY_INTERVAL = "interval";
-    public static final String TOP_STORIES = "topstories";
-    public static final String WORLD = "world";
-    public static final String US = "us";
-    public static final String SPORTS = "sports";
-    public static final String BUSINESS = "business";
-    public static final String POLITICS = "politics";
-    public static final String CRIME = "crime";
-    public static final String TECHNOLOGY = "technology";
-    public static final String HEALTH = "health";
-    public static final String ENTERNTAINMENT = "entertainemnt";
-    public static final String TRAVEL = "travel";
-    public static final String LIVING = "living";
-    public static final String VIDEO = "video";
-    public static final String STUDENT = "student";
-    public static final String POPULAR = "popular";
-    public static final String RECENT = "recent";
-
-    private void initTopics() {
-        topicFeeds.put(TOP_STORIES, "http://rss.cnn.com/rss/cnn_topstories.rss");
-        topicFeeds.put(WORLD, "http://rss.cnn.com/rss/cnn_world.rss");
-        topicFeeds.put(US, "http://rss.cnn.com/rss/cnn_us.rss");
-        topicFeeds.put(SPORTS, "http://rss.cnn.com/rss/si_topstories.rss");
-        topicFeeds.put(BUSINESS, "http://rss.cnn.com/rss/money_latest.rss");
-        topicFeeds.put(POLITICS, "http://rss.cnn.com/rss/cnn_allpolitics.rss");
-        topicFeeds.put(CRIME, "http://rss.cnn.com/rss/cnn_crime.rss");
-        topicFeeds.put(TECHNOLOGY, "http://rss.cnn.com/rss/cnn_tech.rss");
-        topicFeeds.put(HEALTH, "http://rss.cnn.com/rss/cnn_health.rss");
-        topicFeeds.put(ENTERNTAINMENT, "http://rss.cnn.com/rss/cnn_showbiz.rss");
-        topicFeeds.put(LIVING, "http://rss.cnn.com/rss/cnn_living.rss");
-        topicFeeds.put(VIDEO, "http://rss.cnn.com/rss/cnn_freevideo.rss");
-        topicFeeds.put(TRAVEL, "http://rss.cnn.com/rss/cnn_travel.rss");
-        topicFeeds.put(STUDENT, "http://rss.cnn.com/rss/cnn_studentnews.rss");
-        topicFeeds.put(POPULAR, "http://rss.cnn.com/rss/cnn_mostpopular.rss");
-        topicFeeds.put(RECENT, "http://rss.cnn.com/rss/cnn_latest.rss");
-    }
-
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        configuration = arguments;
-        String rssURLProperty = (String) configuration.get(KEY_RSS_URL);
-        if (rssURLProperty == null) {
-            throw new IllegalArgumentException("no rss url provided");
-        }
-        initializeFeedURLs(rssURLProperty);
-        configurePartitionConstraints();
-
-    }
-
-    private void initializeFeedURLs(String rssURLProperty) {
-        feedURLs.clear();
-        String[] rssTopics = rssURLProperty.split(",");
-        initTopics();
-        for (String topic : rssTopics) {
-            String feedURL = topicFeeds.get(topic);
-            if (feedURL == null) {
-                throw new IllegalArgumentException(" unknown topic :" + topic + " please choose from the following "
-                        + getValidTopics());
-            }
-            feedURLs.add(feedURL);
-        }
-    }
-
-    private static String getValidTopics() {
-        StringBuilder builder = new StringBuilder();
-        for (String key : topicFeeds.keySet()) {
-            builder.append(key);
-            builder.append(" ");
-        }
-        return new String(builder);
+    public CNNFeedAdapter(Map<String, String> configuration, ARecordType recordType, IHyracksTaskContext ctx)
+            throws AsterixException {
+        super(configuration, recordType, ctx);
     }
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
index 38903ec..45a827c 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
@@ -16,144 +16,37 @@
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.external.util.DNSResolverFactory;
-import edu.uci.ics.asterix.external.util.INodeResolver;
-import edu.uci.ics.asterix.external.util.INodeResolverFactory;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
-import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
-public abstract class FileSystemBasedAdapter extends AbstractDatasourceAdapter {
+public abstract class FileSystemBasedAdapter implements IDatasourceAdapter {
 
     private static final long serialVersionUID = 1L;
 
     public static final String NODE_RESOLVER_FACTORY_PROPERTY = "node.Resolver";
-    public static final String KEY_DELIMITER = "delimiter";
-    public static final String KEY_PATH = "path";
-
-    protected ITupleParserFactory parserFactory;
-    protected ITupleParser parser;
-    protected static INodeResolver nodeResolver;
-
-    private static final INodeResolver DEFAULT_NODE_RESOLVER = new DNSResolverFactory().createNodeResolver();
-    private static final Logger LOGGER = Logger.getLogger(FileSystemBasedAdapter.class.getName());
 
     public abstract InputStream getInputStream(int partition) throws IOException;
 
-    public FileSystemBasedAdapter(IAType atype) {
-        this.atype = atype;
+    protected final ITupleParser tupleParser;
+    protected final IAType sourceDatatype;
+    protected IHyracksTaskContext ctx;
+
+    public FileSystemBasedAdapter(ITupleParserFactory parserFactory, IAType sourceDatatype, IHyracksTaskContext ctx) throws HyracksDataException {
+        this.tupleParser = parserFactory.createTupleParser(ctx);
+        this.sourceDatatype = sourceDatatype;
+        this.ctx = ctx;
     }
 
     @Override
     public void start(int partition, IFrameWriter writer) throws Exception {
         InputStream in = getInputStream(partition);
-        parser = getTupleParser();
-        parser.parse(in, writer);
+        tupleParser.parse(in, writer);
     }
 
-    @Override
-    public abstract void initialize(IHyracksTaskContext ctx) throws Exception;
-
-    @Override
-    public abstract void configure(Map<String, Object> arguments) throws Exception;
-
-    @Override
-    public abstract AdapterType getAdapterType();
-
-    @Override
-    public abstract AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
-
-    protected ITupleParser getTupleParser() throws Exception {
-        return parserFactory.createTupleParser(ctx);
-    }
-
-    protected void configureFormat() throws Exception {
-        String parserFactoryClassname = (String) configuration.get(KEY_PARSER_FACTORY);
-        if (parserFactoryClassname == null) {
-            String specifiedFormat = (String) configuration.get(KEY_FORMAT);
-            if (specifiedFormat == null) {
-                throw new IllegalArgumentException(" Unspecified data format");
-            } else if (FORMAT_DELIMITED_TEXT.equalsIgnoreCase(specifiedFormat)) {
-                parserFactory = getDelimitedDataTupleParserFactory((ARecordType) atype);
-            } else if (FORMAT_ADM.equalsIgnoreCase((String)configuration.get(KEY_FORMAT))) {
-                parserFactory = getADMDataTupleParserFactory((ARecordType) atype);
-            } else {
-                throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
-            }
-        } else {
-            parserFactory = (ITupleParserFactory) Class.forName(parserFactoryClassname).newInstance();
-        }
-
-    }
-
-    protected ITupleParserFactory getDelimitedDataTupleParserFactory(ARecordType recordType) throws AsterixException {
-        int n = recordType.getFieldTypes().length;
-        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
-        for (int i = 0; i < n; i++) {
-            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
-            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
-            if (vpf == null) {
-                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
-            }
-            fieldParserFactories[i] = vpf;
-        }
-        String delimiterValue = (String) configuration.get(KEY_DELIMITER);
-        if (delimiterValue != null && delimiterValue.length() > 1) {
-            throw new AsterixException("improper delimiter");
-        }
-
-        Character delimiter = delimiterValue.charAt(0);
-        return new NtDelimitedDataTupleParserFactory(recordType, fieldParserFactories, delimiter);
-    }
-
-    protected ITupleParserFactory getADMDataTupleParserFactory(ARecordType recordType) throws AsterixException {
-        try {
-            return new AdmSchemafullRecordParserFactory(recordType);
-        } catch (Exception e) {
-            throw new AsterixException(e);
-        }
-
-    }
-
-    protected INodeResolver getNodeResolver() {
-        if (nodeResolver == null) {
-            nodeResolver = initNodeResolver();
-        }
-        return nodeResolver;
-    }
-
-    private static INodeResolver initNodeResolver() {
-        INodeResolver nodeResolver = null;
-        String configuredNodeResolverFactory = System.getProperty(NODE_RESOLVER_FACTORY_PROPERTY);
-        if (configuredNodeResolverFactory != null) {
-            try {
-                nodeResolver = ((INodeResolverFactory) (Class.forName(configuredNodeResolverFactory).newInstance()))
-                        .createNodeResolver();
-
-            } catch (Exception e) {
-                if (LOGGER.isLoggable(Level.WARNING)) {
-                    LOGGER.log(Level.WARNING, "Unable to create node resolver from the configured classname "
-                            + configuredNodeResolverFactory + "\n" + e.getMessage());
-                }
-                nodeResolver = DEFAULT_NODE_RESOLVER;
-            }
-        } else {
-            nodeResolver = DEFAULT_NODE_RESOLVER;
-        }
-        return nodeResolver;
-    }
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
index f8b381b..1e694e2 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
@@ -16,7 +16,6 @@
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.Map;
 
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.mapred.Counters.Counter;
@@ -31,6 +30,8 @@
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
 /**
  * Provides functionality for fetching external data stored in an HDFS instance.
@@ -44,34 +45,16 @@
     private transient boolean executed[];
     private transient InputSplit[] inputSplits;
     private transient JobConf conf;
-    private transient AlgebricksPartitionConstraint clusterLocations;
-
     private transient String nodeName;
 
     public HDFSAdapter(IAType atype, String[] readSchedule, boolean[] executed, InputSplit[] inputSplits, JobConf conf,
-            AlgebricksPartitionConstraint clusterLocations) {
-        super(atype);
+            String nodeName, ITupleParserFactory parserFactory, IHyracksTaskContext ctx) throws HyracksDataException {
+        super(parserFactory, atype, ctx);
         this.readSchedule = readSchedule;
         this.executed = executed;
         this.inputSplits = inputSplits;
         this.conf = conf;
-        this.clusterLocations = clusterLocations;
-    }
-
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        this.configuration = arguments;
-        configureFormat();
-    }
-
-    public AdapterType getAdapterType() {
-        return AdapterType.READ_WRITE;
-    }
-
-    @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
-        this.ctx = ctx;
-        this.nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
+        this.nodeName = nodeName;
     }
 
     private Reporter getReporter() {
@@ -227,9 +210,4 @@
 
     }
 
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        return clusterLocations;
-    }
-
 }
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
index 91cf0d2..f4ff44e 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
@@ -14,21 +14,23 @@
  */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
-import java.util.Map;
+import java.io.IOException;
+import java.io.InputStream;
 
 import org.apache.hadoop.mapred.InputSplit;
 import org.apache.hadoop.mapred.JobConf;
 
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
 /**
  * Provides the functionality of fetching data in form of ADM records from a Hive dataset.
  */
 @SuppressWarnings("deprecation")
-public class HiveAdapter extends AbstractDatasourceAdapter {
+public class HiveAdapter extends FileSystemBasedAdapter {
 
     private static final long serialVersionUID = 1L;
 
@@ -42,35 +44,16 @@
     private HDFSAdapter hdfsAdapter;
 
     public HiveAdapter(IAType atype, String[] readSchedule, boolean[] executed, InputSplit[] inputSplits, JobConf conf,
-            AlgebricksPartitionConstraint clusterLocations) {
-        this.hdfsAdapter = new HDFSAdapter(atype, readSchedule, executed, inputSplits, conf, clusterLocations);
-        this.atype = atype;
+            AlgebricksPartitionConstraint clusterLocations, String nodeName, ITupleParserFactory parserFactory,
+            IHyracksTaskContext ctx) throws HyracksDataException {
+        super(parserFactory, atype, ctx);
+        this.hdfsAdapter = new HDFSAdapter(atype, readSchedule, executed, inputSplits, conf, nodeName, parserFactory,
+                ctx);
     }
 
     @Override
-    public AdapterType getAdapterType() {
-        return AdapterType.READ;
-    }
-
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        this.configuration = arguments;
-        this.hdfsAdapter.configure(arguments);
-    }
-
-    @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
-        hdfsAdapter.initialize(ctx);
-    }
-
-    @Override
-    public void start(int partition, IFrameWriter writer) throws Exception {
-        hdfsAdapter.start(partition, writer);
-    }
-
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        return hdfsAdapter.getPartitionConstraint();
+    public InputStream getInputStream(int partition) throws IOException {
+        return hdfsAdapter.getInputStream(partition);
     }
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java
deleted file mode 100644
index 9403bfe..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.dataset.adapter;
-
-import java.io.Serializable;
-import java.util.Map;
-
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-
-/**
- * A super interface implemented by a data source adapter. An adapter can be a
- * pull based or push based. This interface provides all common APIs that need
- * to be implemented by each adapter irrespective of the the kind of
- * adapter(pull or push).
- */
-public interface IDatasourceAdapter extends Serializable {
-
-    /**
-     * An adapter can be used to read from an external data source and may also
-     * allow writing to the external data source. This enum type indicates the
-     * kind of operations supported by the adapter.
-     * 
-     * @caller Compiler uses this method to assert the validity of an operation
-     *         on an external dataset. The type of adapter associated with an
-     *         external dataset determines the set of valid operations allowed
-     *         on the dataset.
-     */
-    public enum AdapterType {
-        READ,
-        WRITE,
-        READ_WRITE
-    }
-
-    /**
-     * Returns the type of adapter indicating if the adapter can be used for
-     * reading from an external data source or writing to an external data
-     * source or can be used for both purposes.
-     * 
-     * @Caller: Compiler: The compiler uses this API to verify if an operation
-     *          is supported by the adapter. For example, an write query against
-     *          an external dataset will not compile successfully if the
-     *          external dataset was declared with a read_only adapter.
-     * @see AdapterType
-     * @return
-     */
-    public AdapterType getAdapterType();
-
-    /**
-     * Each adapter instance is configured with a set of parameters that are
-     * key-value pairs. When creating an external or a feed dataset, an adapter
-     * instance is used in conjunction with a set of configuration parameters
-     * for the adapter instance. The configuration parameters are stored
-     * internally with the adapter and can be retrieved using this API.
-     * 
-     * @param propertyKey
-     * @return String the value corresponding to the configuration parameter
-     *         represented by the key- attributeKey.
-     */
-    public Object getAdapterProperty(String propertyKey);
-
-    /**
-     * Configures the IDatasourceAdapter instance.
-     * 
-     * @caller Scenario 1) Called during compilation of DDL statement that
-     *         creates a Feed dataset and associates the adapter with the
-     *         dataset. The (key,value) configuration parameters provided as
-     *         part of the DDL statement are collected by the compiler and
-     *         passed on to this method. The adapter may as part of
-     *         configuration connect with the external data source and determine
-     *         the IAType associated with data residing with the external
-     *         datasource.
-     *         Scenario 2) An adapter instance is created by an ASTERIX operator
-     *         that wraps around the adapter instance. The operator, as part of
-     *         its initialization invokes the configure method. The (key,value)
-     *         configuration parameters are passed on to the operator by the
-     *         compiler. Subsequent to the invocation, the wrapping operator
-     *         obtains the partition constraints (if any). In addition, in the
-     *         case of a read adapter, the wrapping operator obtains the output
-     *         ASTERIX type associated with the data that will be output from
-     *         the adapter.
-     * @param arguments
-     *            A map with key-value pairs that contains the configuration
-     *            parameters for the adapter. The arguments are obtained from
-     *            the metadata. Recall that the DDL to create an external
-     *            dataset or a feed dataset requires using an adapter and
-     *            providing all arguments as a set of (key,value) pairs. These
-     *            arguments are put into the metadata.
-     */
-    public void configure(Map<String, Object> arguments) throws Exception;
-
-    /**
-     * Returns a list of partition constraints. A partition constraint can be a
-     * requirement to execute at a particular location or could be cardinality
-     * constraints indicating the number of instances that need to run in
-     * parallel. example, a IDatasourceAdapter implementation written for data
-     * residing on the local file system of a node cannot run on any other node
-     * and thus has a location partition constraint. The location partition
-     * constraint can be expressed as a node IP address or a node controller id.
-     * In the former case, the IP address is translated to a node controller id
-     * running on the node with the given IP address.
-     * 
-     * @Caller The wrapper operator configures its partition constraints from
-     *         the constraints obtained from the adapter.
-     */
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
-
-    /**
-     * Allows the adapter to establish connection with the external data source
-     * expressing intent for data and providing any configuration parameters
-     * required by the external data source for the transfer of data. This
-     * method does not result in any data transfer, but is a prerequisite for
-     * any subsequent data transfer to happen between the external data source
-     * and the adapter.
-     * 
-     * @caller This method is called by the wrapping ASTERIX operator that
-     * @param ctx
-     * @throws Exception
-     */
-    public void initialize(IHyracksTaskContext ctx) throws Exception;
-
-    /**
-     * Triggers the adapter to begin ingestion of data from the external source.
-     * 
-     * @param partition
-     *            The adapter could be running with a degree of parallelism.
-     *            partition corresponds to the i'th parallel instance.
-     * @param writer
-     *            The instance of frame writer that is used by the adapter to
-     *            write frame to. Adapter packs the fetched bytes (from external source),
-     *            packs them into frames and forwards the frames to an upstream receiving
-     *            operator using the instance of IFrameWriter.
-     * @throws Exception
-     */
-    public void start(int partition, IFrameWriter writer) throws Exception;
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IFeedClientFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IFeedClientFactory.java
new file mode 100644
index 0000000..4fb14ff
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IFeedClientFactory.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public interface IFeedClientFactory {
+
+    public IPullBasedFeedClient createFeedClient(IHyracksTaskContext ctx, Map<String, String> configuration)
+            throws Exception;
+
+    public ARecordType getRecordType() throws AsterixException;
+
+    public FeedClientType getFeedClientType();
+
+    public enum FeedClientType {
+        GENERIC,
+        TYPED
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java
index aeecb5f..ee28c3a 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java
@@ -15,11 +15,18 @@
 package edu.uci.ics.asterix.external.dataset.adapter;
 
 import java.io.DataOutput;
+import java.util.Map;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public interface IPullBasedFeedClient {
 
+    public enum InflowState {
+        NO_MORE_DATA,
+        DATA_AVAILABLE,
+        DATA_NOT_AVAILABLE
+    }
+
     /**
      * Writes the next fetched tuple into the provided instance of DatatOutput.
      * 
@@ -29,7 +36,7 @@
      *         false if no record was written to the DataOutput instance indicating non-availability of new data.
      * @throws AsterixException
      */
-    public boolean nextTuple(DataOutput dataOutput) throws AsterixException;
+    public InflowState nextTuple(DataOutput dataOutput) throws AsterixException;
 
     /**
      * Provides logic for any corrective action that feed client needs to execute on
@@ -42,10 +49,10 @@
     public void resetOnFailure(Exception e) throws AsterixException;
 
     /**
-     * Terminates a feed, that is data ingestion activity ceases.
-     * 
-     * @throws Exception
+     * @param configuration
      */
-    public void stop() throws Exception;
+    public boolean alter(Map<String, String> configuration);
+
+    public void stop();
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPushBasedFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPushBasedFeedClient.java
new file mode 100644
index 0000000..da49240
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPushBasedFeedClient.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.InputStream;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+
+public interface IPushBasedFeedClient {
+
+    /**
+     * @return
+     * @throws AsterixException
+     */
+    public InputStream getInputStream() throws AsterixException;
+
+    /**
+     * Provides logic for any corrective action that feed client needs to execute on
+     * encountering an exception.
+     * 
+     * @param e
+     *            The exception encountered during fetching of data from external source
+     * @throws AsterixException
+     */
+    public void resetOnFailure(Exception e) throws AsterixException;
+
+    /**
+     * @param configuration
+     */
+    public boolean alter(Map<String, Object> configuration);
+
+    public void stop();
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java
deleted file mode 100644
index 00b8530..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.dataset.adapter;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-
-/**
- * Implemented by datasource adapter that has a fixed output type.
- * Example @see {PullBasedTwitterAdapter}
- */
-public interface ITypedDatasourceAdapter extends IDatasourceAdapter {
-
-    public ARecordType getAdapterOutputType();
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
index 182ccf7..ea8ed05 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
@@ -19,15 +19,12 @@
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.Map;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
 /**
  * Factory class for creating an instance of NCFileSystemAdapter. An
@@ -37,59 +34,13 @@
 public class NCFileSystemAdapter extends FileSystemBasedAdapter {
 
     private static final long serialVersionUID = 1L;
-    private FileSplit[] fileSplits;
 
-    public NCFileSystemAdapter(IAType atype) {
-        super(atype);
-    }
+    private final FileSplit[] fileSplits;
 
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        this.configuration = arguments;
-        String[] splits = ((String) arguments.get(KEY_PATH)).split(",");
-        configureFileSplits(splits);
-        configureFormat();
-    }
-
-    @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
-        this.ctx = ctx;
-    }
-
-    @Override
-    public AdapterType getAdapterType() {
-        return AdapterType.READ;
-    }
-
-    private void configureFileSplits(String[] splits) throws AsterixException {
-        if (fileSplits == null) {
-            fileSplits = new FileSplit[splits.length];
-            String nodeName;
-            String nodeLocalPath;
-            int count = 0;
-            String trimmedValue;
-            for (String splitPath : splits) {
-                trimmedValue = splitPath.trim();
-                if (!trimmedValue.contains("://")) {
-                    throw new AsterixException("Invalid path: " + splitPath
-                            + "\nUsage- path=\"Host://Absolute File Path\"");
-                }
-                nodeName = trimmedValue.split(":")[0];
-                nodeLocalPath = trimmedValue.split("://")[1];
-                FileSplit fileSplit = new FileSplit(nodeName, new FileReference(new File(nodeLocalPath)));
-                fileSplits[count++] = fileSplit;
-            }
-        }
-    }
-
-    private void configurePartitionConstraint() throws AsterixException {
-        String[] locs = new String[fileSplits.length];
-        String location;
-        for (int i = 0; i < fileSplits.length; i++) {
-            location = getNodeResolver().resolveNode(fileSplits[i].getNodeName());
-            locs[i] = location;
-        }
-        partitionConstraint = new AlgebricksAbsolutePartitionConstraint(locs);
+    public NCFileSystemAdapter(FileSplit[] fileSplits, ITupleParserFactory parserFactory, IAType atype,
+            IHyracksTaskContext ctx) throws HyracksDataException {
+        super(parserFactory, atype, ctx);
+        this.fileSplits = fileSplits;
     }
 
     @Override
@@ -105,11 +56,4 @@
         }
     }
 
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        if (partitionConstraint == null) {
-            configurePartitionConstraint();
-        }
-        return partitionConstraint;
-    }
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java
index 93d2057..4022584 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java
@@ -15,10 +15,16 @@
 package edu.uci.ics.asterix.external.dataset.adapter;
 
 import java.nio.ByteBuffer;
+import java.util.Map;
+import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.dataset.adapter.IPullBasedFeedClient.InflowState;
+import edu.uci.ics.asterix.metadata.feeds.AbstractFeedDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
@@ -29,18 +35,39 @@
  * Captures the common logic for obtaining bytes from an external source
  * and packing them into frames as tuples.
  */
-public abstract class PullBasedAdapter extends AbstractDatasourceAdapter implements ITypedDatasourceAdapter {
+public abstract class PullBasedAdapter extends AbstractFeedDatasourceAdapter implements IDatasourceAdapter,
+        IFeedAdapter {
 
     private static final long serialVersionUID = 1L;
+    private static final Logger LOGGER = Logger.getLogger(PullBasedAdapter.class.getName());
 
     protected ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(1);
     protected IPullBasedFeedClient pullBasedFeedClient;
     protected ARecordType adapterOutputType;
     private FrameTupleAppender appender;
     private ByteBuffer frame;
+    protected boolean continueIngestion = true;
+    protected boolean alterRequested = false;
+    private Map<String, String> modifiedConfiguration = null;
+    private long tupleCount = 0;
+    private final IHyracksTaskContext ctx;
+    protected Map<String, String> configuration;
 
     public abstract IPullBasedFeedClient getFeedClient(int partition) throws Exception;
 
+    public PullBasedAdapter(Map<String, String> configuration, IHyracksTaskContext ctx) {
+        this.ctx = ctx;
+        this.configuration = configuration;
+    }
+
+    public long getIngestedRecordsCount() {
+        return tupleCount;
+    }
+
+    public void alter(Map<String, String> modifedConfiguration) {
+        this.modifiedConfiguration = modifedConfiguration;
+    }
+
     @Override
     public void start(int partition, IFrameWriter writer) throws Exception {
         appender = new FrameTupleAppender(ctx.getFrameSize());
@@ -48,22 +75,46 @@
         appender.reset(frame, true);
 
         pullBasedFeedClient = getFeedClient(partition);
-        boolean moreData = false;
-        while (true) {
+        InflowState inflowState = null;
+        while (continueIngestion) {
             tupleBuilder.reset();
             try {
-                moreData = pullBasedFeedClient.nextTuple(tupleBuilder.getDataOutput());
-                if (moreData) {
-                    tupleBuilder.addFieldEndOffset();
-                    appendTupleToFrame(writer);
-                } else {
-                    FrameUtils.flushFrame(frame, writer);
-                    break;
+                System.out.println("requesting next tuple");
+                inflowState = pullBasedFeedClient.nextTuple(tupleBuilder.getDataOutput());
+                switch (inflowState) {
+                    case DATA_AVAILABLE:
+                        tupleBuilder.addFieldEndOffset();
+                        System.out.println("appending tuple");
+                        appendTupleToFrame(writer);
+                        System.out.println("appended tuple");
+                        tupleCount++;
+                        break;
+                    case NO_MORE_DATA:
+                        LOGGER.info("Reached end of feed");
+                        FrameUtils.flushFrame(frame, writer);
+                        continueIngestion = false;
+                        break;
+                    case DATA_NOT_AVAILABLE:
+                        break;
+                }
+                if (alterRequested) {
+                    boolean success = pullBasedFeedClient.alter(modifiedConfiguration);
+                    if (success) {
+                        configuration = modifiedConfiguration;
+                        modifiedConfiguration = null;
+                    }
                 }
             } catch (Exception failureException) {
                 try {
-                    pullBasedFeedClient.resetOnFailure(failureException);
-                    continue;
+                    failureException.printStackTrace();
+                    boolean continueIngestion = policyEnforcer.handleSoftwareFailure(failureException);
+                    if (continueIngestion) {
+                        pullBasedFeedClient.resetOnFailure(failureException);
+                        tupleBuilder.reset();
+                        continue;
+                    } else {
+                        throw failureException;
+                    }
                 } catch (Exception recoveryException) {
                     throw new Exception(recoveryException);
                 }
@@ -71,19 +122,11 @@
         }
     }
 
-    /**
-     * Allows an adapter to handle a runtime exception.
-     * @param e exception encountered during runtime
-     * @throws AsterixException
-     */
-    public void resetOnFailure(Exception e) throws AsterixException {
-        pullBasedFeedClient.resetOnFailure(e);
-        tupleBuilder.reset();
-    }
-
     private void appendTupleToFrame(IFrameWriter writer) throws HyracksDataException {
         if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0, tupleBuilder.getSize())) {
+            System.out.println("flushing frame");
             FrameUtils.flushFrame(frame, writer);
+            System.out.println("flushed frame");
             appender.reset(frame, true);
             if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0,
                     tupleBuilder.getSize())) {
@@ -92,9 +135,23 @@
         }
     }
 
-    @Override
-    public ARecordType getAdapterOutputType() {
-        return adapterOutputType;
+    /**
+     * Discontinue the ingestion of data and end the feed.
+     * 
+     * @throws Exception
+     */
+    public void stop() throws Exception {
+        continueIngestion = false;
+        dumpStatistics();
+        timer.cancel();
+    }
+
+    public Map<String, String> getConfiguration() {
+        return configuration;
+    }
+
+    public void setWriter(IFrameWriter writer) {
+
     }
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java
index 6d05bde..8efe919 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java
@@ -17,46 +17,138 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
+import edu.uci.ics.asterix.builders.IARecordBuilder;
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.AMutableUnorderedList;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.IACursor;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public abstract class PullBasedFeedClient implements IPullBasedFeedClient {
 
     protected ARecordSerializerDeserializer recordSerDe;
     protected AMutableRecord mutableRecord;
     protected boolean messageReceived;
-    protected boolean continueIngestion=true;
+    protected boolean continueIngestion = true;
+    protected IARecordBuilder recordBuilder = new RecordBuilder();
 
-    public abstract boolean setNextRecord() throws Exception;
+    protected AMutableString aString = new AMutableString("");
+    protected AMutableInt32 aInt32 = new AMutableInt32(0);
+    protected AMutablePoint aPoint = new AMutablePoint(0, 0);
+    protected AMutableDateTime aDateTime = new AMutableDateTime(0);
+
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ASTRING);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT32);
+
+    public abstract InflowState setNextRecord() throws Exception;
 
     @Override
-    public boolean nextTuple(DataOutput dataOutput) throws AsterixException {
+    public InflowState nextTuple(DataOutput dataOutput) throws AsterixException {
         try {
-            boolean newData = setNextRecord();
-            if (newData && continueIngestion) {
-                IAType t = mutableRecord.getType();
-                ATypeTag tag = t.getTypeTag();
-                try {
+            System.out.println("Setting next record");
+            InflowState state = setNextRecord();
+            boolean first = true;
+            switch (state) {
+                case DATA_AVAILABLE:
+                    IAType t = mutableRecord.getType();
+                    ATypeTag tag = t.getTypeTag();
                     dataOutput.writeByte(tag.serialize());
-                } catch (IOException e) {
-                    throw new HyracksDataException(e);
-                }
-                recordSerDe.serialize(mutableRecord, dataOutput);
-                return true;
+                    if (first) {
+                        recordBuilder.reset(mutableRecord.getType());
+                        first = false;
+                    }
+                    recordBuilder.init();
+                    writeRecord(mutableRecord, dataOutput, recordBuilder);
+                    break;
+
+                case DATA_NOT_AVAILABLE:
+                    break;
+                case NO_MORE_DATA:
+                    break;
             }
-            return false;
+            return state;
         } catch (Exception e) {
             throw new AsterixException(e);
         }
 
     }
 
-    @Override
-    public void stop() {
-        continueIngestion = false;
+    private void writeRecord(AMutableRecord record, DataOutput dataOutput, IARecordBuilder recordBuilder)
+            throws IOException, AsterixException {
+        ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
+        int numFields = record.getType().getFieldNames().length;
+        for (int pos = 0; pos < numFields; pos++) {
+            fieldValue.reset();
+            IAObject obj = record.getValueByPos(pos);
+            writeObject(obj, fieldValue.getDataOutput());
+            recordBuilder.addField(pos, fieldValue);
+        }
+        recordBuilder.write(dataOutput, false);
+    }
+
+    private void writeObject(IAObject obj, DataOutput dataOutput) throws IOException, AsterixException {
+        switch (obj.getType().getTypeTag()) {
+            case RECORD:
+                ATypeTag tag = obj.getType().getTypeTag();
+                try {
+                    dataOutput.writeByte(tag.serialize());
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+                IARecordBuilder recordBuilder = new RecordBuilder();
+                recordBuilder.reset((ARecordType) obj.getType());
+                recordBuilder.init();
+                writeRecord((AMutableRecord) obj, dataOutput, recordBuilder);
+                break;
+            case UNORDEREDLIST:
+                tag = obj.getType().getTypeTag();
+                try {
+                    dataOutput.writeByte(tag.serialize());
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+                UnorderedListBuilder listBuilder = new UnorderedListBuilder();
+                listBuilder.reset((AUnorderedListType) ((AMutableUnorderedList) obj).getType());
+                IACursor cursor = ((AMutableUnorderedList) obj).getCursor();
+                ArrayBackedValueStorage listItemValue = new ArrayBackedValueStorage();
+                while (cursor.next()) {
+                    listItemValue.reset();
+                    IAObject item = cursor.get();
+                    writeObject(item, listItemValue.getDataOutput());
+                    listBuilder.addItem(listItemValue);
+                }
+                listBuilder.write(dataOutput, false);
+                break;
+            default:
+                AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(obj.getType()).serialize(obj,
+                        dataOutput);
+                break;
+        }
     }
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
index 2715a00..41143d8 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
@@ -14,32 +14,28 @@
  */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
-import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
  * An adapter that provides the functionality of receiving tweets from the
  * Twitter service in the form of ADM formatted records.
  */
-public class PullBasedTwitterAdapter extends PullBasedAdapter implements IManagedFeedAdapter {
+public class PullBasedTwitterAdapter extends PullBasedAdapter implements IFeedAdapter {
 
     private static final long serialVersionUID = 1L;
 
     public static final String QUERY = "query";
     public static final String INTERVAL = "interval";
 
-    private boolean alterRequested = false;
-    private Map<String, String> alteredParams = new HashMap<String, String>();
     private ARecordType recordType;
-
+    private final IHyracksTaskContext ctx;
     private PullBasedTwitterFeedClient tweetClient;
 
     @Override
@@ -47,27 +43,13 @@
         return tweetClient;
     }
 
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        configuration = arguments;
-        String[] fieldNames = { "id", "username", "location", "text", "timestamp" };
-        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
-                BuiltinType.ASTRING };
-        recordType = new ARecordType("FeedRecordType", fieldNames, fieldTypes, false);
-    }
-
-    @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
+    public PullBasedTwitterAdapter(Map<String, String> configuration, IHyracksTaskContext ctx) throws AsterixException {
+        super(configuration, ctx);
         this.ctx = ctx;
         tweetClient = new PullBasedTwitterFeedClient(ctx, this);
     }
 
     @Override
-    public AdapterType getAdapterType() {
-        return AdapterType.READ;
-    }
-
-    @Override
     public void stop() {
         tweetClient.stop();
     }
@@ -75,33 +57,18 @@
     @Override
     public void alter(Map<String, String> properties) {
         alterRequested = true;
-        this.alteredParams = properties;
     }
 
     public boolean isAlterRequested() {
         return alterRequested;
     }
 
-    public Map<String, String> getAlteredParams() {
-        return alteredParams;
-    }
-
     public void postAlteration() {
-        alteredParams = null;
         alterRequested = false;
     }
 
-    @Override
     public ARecordType getAdapterOutputType() {
         return recordType;
     }
 
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        if (partitionConstraint == null) {
-            partitionConstraint = new AlgebricksCountPartitionConstraint(1);
-        }
-        return partitionConstraint;
-    }
-
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java
index 9f44a03..7a5aeea 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java
@@ -14,9 +14,10 @@
  */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
-import java.util.LinkedList;
+import java.util.List;
 import java.util.Map;
-import java.util.Queue;
+import java.util.UUID;
+import java.util.logging.Logger;
 
 import twitter4j.Query;
 import twitter4j.QueryResult;
@@ -41,15 +42,17 @@
 
     private String keywords;
     private Query query;
-    private long id = 0;
     private String id_prefix;
     private Twitter twitter;
     private int requestInterval = 10; // seconds
-    private Queue<Tweet> tweetBuffer = new LinkedList<Tweet>();
+    private QueryResult result;
 
-    IAObject[] mutableFields;
-    String[] tupleFieldValues;
+    private IAObject[] mutableFields;
+    private String[] tupleFieldValues;
     private ARecordType recordType;
+    private int nextTweetIndex = 0;
+
+    private static final Logger LOGGER = Logger.getLogger(PullBasedTwitterFeedClient.class.getName());
 
     public PullBasedTwitterFeedClient(IHyracksTaskContext ctx, PullBasedTwitterAdapter adapter) {
         this.id_prefix = ctx.getJobletContext().getApplicationContext().getNodeId();
@@ -59,24 +62,8 @@
         recordType = adapter.getAdapterOutputType();
         recordSerDe = new ARecordSerializerDeserializer(recordType);
         mutableRecord = new AMutableRecord(recordType, mutableFields);
-        initialize(adapter.getConfiguration());
         tupleFieldValues = new String[recordType.getFieldNames().length];
-    }
-
-    public void initialize(Map<String, Object> params) {
-        this.keywords = (String) params.get(PullBasedTwitterAdapter.QUERY);
-        this.query = new Query(keywords);
-        query.setRpp(100);
-    }
-
-    private Tweet getNextTweet() throws TwitterException, InterruptedException {
-        if (tweetBuffer.isEmpty()) {
-            QueryResult result;
-            Thread.sleep(1000 * requestInterval);
-            result = twitter.search(query);
-            tweetBuffer.addAll(result.getTweets());
-        }
-        return tweetBuffer.remove();
+        initialize(adapter.getConfiguration());
     }
 
     public ARecordType getRecordType() {
@@ -88,15 +75,14 @@
     }
 
     @Override
-    public boolean setNextRecord() throws Exception {
+    public InflowState setNextRecord() throws Exception {
         Tweet tweet;
         tweet = getNextTweet();
         if (tweet == null) {
-            return false;
+            return InflowState.DATA_NOT_AVAILABLE;
         }
         int numFields = recordType.getFieldNames().length;
-
-        tupleFieldValues[0] = id_prefix + ":" + id;
+        tupleFieldValues[0] = UUID.randomUUID().toString();
         tupleFieldValues[1] = tweet.getFromUser();
         tupleFieldValues[2] = tweet.getLocation() == null ? "" : tweet.getLocation();
         tupleFieldValues[3] = tweet.getText();
@@ -105,8 +91,7 @@
             ((AMutableString) mutableFields[i]).setValue(tupleFieldValues[i]);
             mutableRecord.setValueAtPos(i, mutableFields[i]);
         }
-        id++;
-        return true;
+        return InflowState.DATA_AVAILABLE;
     }
 
     @Override
@@ -114,4 +99,32 @@
         // TOOO: implement resetting logic for Twitter
     }
 
+    @Override
+    public boolean alter(Map<String, String> configuration) {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public void stop() {
+        // TODO Auto-generated method stub
+    }
+
+    private void initialize(Map<String, String> params) {
+        this.keywords = (String) params.get(PullBasedTwitterAdapter.QUERY);
+        this.requestInterval = Integer.parseInt((String) params.get(PullBasedTwitterAdapter.INTERVAL));
+        this.query = new Query(keywords);
+        query.setRpp(100);
+    }
+
+    private Tweet getNextTweet() throws TwitterException, InterruptedException {
+        if (result == null || nextTweetIndex >= result.getTweets().size()) {
+            Thread.sleep(1000 * requestInterval);
+            result = twitter.search(query);
+            nextTweetIndex = 0;
+        }
+        List<Tweet> tw = result.getTweets();
+        return tw.get(nextTweetIndex++);
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
index 8379b18..102482d 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
@@ -19,18 +19,15 @@
 import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
  * RSSFeedAdapter provides the functionality of fetching an RSS based feed.
  */
-public class RSSFeedAdapter extends PullBasedAdapter implements IManagedFeedAdapter {
+public class RSSFeedAdapter extends PullBasedAdapter implements IFeedAdapter {
 
     private static final long serialVersionUID = 1L;
 
@@ -39,17 +36,21 @@
     private boolean isAlterRequested = false;
     private Map<String, String> alteredParams = new HashMap<String, String>();
     private String id_prefix = "";
-    private ARecordType recordType;
 
     private IPullBasedFeedClient rssFeedClient;
-
-    public static final String KEY_RSS_URL = "url";
-    public static final String KEY_INTERVAL = "interval";
+    private ARecordType recordType;
 
     public boolean isStopRequested() {
         return isStopRequested;
     }
 
+    public RSSFeedAdapter(Map<String, String> configuration, ARecordType recordType, IHyracksTaskContext ctx)
+            throws AsterixException {
+        super(configuration, ctx);
+        id_prefix = ctx.getJobletContext().getApplicationContext().getNodeId();
+        this.recordType = recordType;
+    }
+
     public void setStopRequested(boolean isStopRequested) {
         this.isStopRequested = isStopRequested;
     }
@@ -66,25 +67,6 @@
         isStopRequested = true;
     }
 
-    @Override
-    public AdapterType getAdapterType() {
-        return AdapterType.READ;
-    }
-
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        configuration = arguments;
-        String rssURLProperty = (String) configuration.get(KEY_RSS_URL);
-        if (rssURLProperty == null) {
-            throw new IllegalArgumentException("no rss url provided");
-        }
-        initializeFeedURLs(rssURLProperty);
-        configurePartitionConstraints();
-        recordType = new ARecordType("FeedRecordType", new String[] { "id", "title", "description", "link" },
-                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING },
-                false);
-    }
-
     private void initializeFeedURLs(String rssURLProperty) {
         feedURLs.clear();
         String[] feedURLProperty = rssURLProperty.split(",");
@@ -94,22 +76,12 @@
     }
 
     protected void reconfigure(Map<String, String> arguments) {
-        String rssURLProperty = (String) configuration.get(KEY_RSS_URL);
+        String rssURLProperty = configuration.get("KEY_RSS_URL");
         if (rssURLProperty != null) {
             initializeFeedURLs(rssURLProperty);
         }
     }
 
-    protected void configurePartitionConstraints() {
-        partitionConstraint = new AlgebricksCountPartitionConstraint(feedURLs.size());
-    }
-
-    @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
-        this.ctx = ctx;
-        id_prefix = ctx.getJobletContext().getApplicationContext().getNodeId();
-    }
-
     public boolean isAlterRequested() {
         return isAlterRequested;
     }
@@ -126,17 +98,8 @@
         return rssFeedClient;
     }
 
-    @Override
-    public ARecordType getAdapterOutputType() {
+    public ARecordType getRecordType() {
         return recordType;
     }
 
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        if (partitionConstraint == null) {
-            configurePartitionConstraints();
-        }
-        return partitionConstraint;
-    }
-
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java
index d89674f..8a4b301 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java
@@ -18,6 +18,7 @@
 import java.net.URL;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
 import java.util.Queue;
 
 import com.sun.syndication.feed.synd.SyndEntryImpl;
@@ -75,16 +76,16 @@
         fetcher.addFetcherEventListener(listener);
         mutableFields = new IAObject[] { new AMutableString(null), new AMutableString(null), new AMutableString(null),
                 new AMutableString(null) };
-        recordType = adapter.getAdapterOutputType();
+        recordType = adapter.getRecordType();
         mutableRecord = new AMutableRecord(recordType, mutableFields);
         tupleFieldValues = new String[recordType.getFieldNames().length];
     }
 
     @Override
-    public boolean setNextRecord() throws Exception {
+    public InflowState setNextRecord() throws Exception {
         SyndEntryImpl feedEntry = getNextRSSFeed();
         if (feedEntry == null) {
-            return false;
+            return InflowState.DATA_NOT_AVAILABLE;
         }
         tupleFieldValues[0] = idPrefix + ":" + id;
         tupleFieldValues[1] = feedEntry.getTitle();
@@ -96,7 +97,7 @@
             mutableRecord.setValueAtPos(i, mutableFields[i]);
         }
         id++;
-        return true;
+        return InflowState.DATA_AVAILABLE;
     }
 
     private SyndEntryImpl getNextRSSFeed() throws Exception {
@@ -138,6 +139,18 @@
 
     }
 
+    @Override
+    public boolean alter(Map<String, String> configuration) {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public void stop() {
+        // TODO Auto-generated method stub
+
+    }
+
 }
 
 class FetcherEventListenerImpl implements FetcherListener {
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/StreamBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/StreamBasedAdapter.java
new file mode 100644
index 0000000..f89a7ff
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/StreamBasedAdapter.java
@@ -0,0 +1,40 @@
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import edu.uci.ics.asterix.metadata.feeds.AdapterRuntimeManager;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+public abstract class StreamBasedAdapter implements IDatasourceAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final String NODE_RESOLVER_FACTORY_PROPERTY = "node.Resolver";
+
+    public abstract InputStream getInputStream(int partition) throws IOException;
+
+    protected final ITupleParser tupleParser;
+    protected final IAType sourceDatatype;
+    protected IHyracksTaskContext ctx;
+    protected AdapterRuntimeManager runtimeManager;
+
+    public StreamBasedAdapter(ITupleParserFactory parserFactory, IAType sourceDatatype, IHyracksTaskContext ctx)
+            throws HyracksDataException {
+        this.tupleParser = parserFactory.createTupleParser(ctx);
+        this.sourceDatatype = sourceDatatype;
+    }
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        InputStream in = getInputStream(partition);
+        tupleParser.parse(in, writer);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java
deleted file mode 100644
index 5b3ed35..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.feed.lifecycle;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-
-/**
- * Handle (de-)registration of feeds for delivery of control messages.
- */
-public class FeedManager implements IFeedManager {
-
-    public static FeedManager INSTANCE = new FeedManager();
-
-    private FeedManager() {
-
-    }
-
-    private Map<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>> outGoingMsgQueueMap = new HashMap<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>>();
-
-    @Override
-    public void deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws AsterixException {
-        Set<LinkedBlockingQueue<IFeedMessage>> operatorQueues = outGoingMsgQueueMap.get(feedId);
-        try {
-            if (operatorQueues != null) {
-                for (LinkedBlockingQueue<IFeedMessage> queue : operatorQueues) {
-                    queue.put(feedMessage);
-                }
-            } 
-        } catch (Exception e) {
-            throw new AsterixException(e);
-        }
-    }
-
-    @Override
-    public void registerFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
-        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
-        if (feedQueues == null) {
-            feedQueues = new HashSet<LinkedBlockingQueue<IFeedMessage>>();
-        }
-        feedQueues.add(queue);
-        outGoingMsgQueueMap.put(feedId, feedQueues);
-    }
-
-    @Override
-    public void unregisterFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
-        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
-        if (feedQueues == null || !feedQueues.contains(queue)) {
-            throw new IllegalArgumentException(" Unable to de-register feed message queue. Unknown feedId " + feedId);
-        }
-        feedQueues.remove(queue);
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java
deleted file mode 100644
index 2febbe4..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.feed.lifecycle;
-
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-
-/**
- * Handle (de-)registration of feeds for delivery of control messages.
- */
-public interface IFeedManager {
-
-    /**
-     * Register an input message queue for a feed specified by feedId.
-     * All messages sent to a feed are directed to the registered queue(s).
-     * 
-     * @param feedId
-     *            an identifier for the feed dataset.
-     * @param queue
-     *            an input message queue for receiving control messages.
-     */
-    public void registerFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
-
-    /**
-     * Unregister an input message queue for a feed specified by feedId.
-     * A feed prior to finishing should unregister all previously registered queue(s)
-     * as it is no longer active and thus need not process any control messages.
-     * 
-     * @param feedId
-     *            an identifier for the feed dataset.
-     * @param queue
-     *            an input message queue for receiving control messages.
-     */
-    public void unregisterFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
-
-    /**
-     * Deliver a message to a feed with a given feedId.
-     * 
-     * @param feedId
-     *            identifier for the feed dataset.
-     * @param feedMessage
-     *            control message that needs to be delivered.
-     * @throws Exception
-     */
-    public void deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws AsterixException;
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java
new file mode 100755
index 0000000..3fd96ec
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java
@@ -0,0 +1,75 @@
+package edu.uci.ics.asterix.external.library;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public abstract class ExternalFunction implements IExternalFunction {
+
+    protected final IExternalFunctionInfo finfo;
+    protected final IFunctionFactory externalFunctionFactory;
+    protected final IExternalFunction externalFunction;
+    protected final ICopyEvaluatorFactory[] evaluatorFactories;
+    protected final IDataOutputProvider out;
+    protected final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+    protected final ICopyEvaluator[] argumentEvaluators;
+    protected final JavaFunctionHelper functionHelper;
+
+    public ExternalFunction(IExternalFunctionInfo finfo, ICopyEvaluatorFactory args[],
+            IDataOutputProvider outputProvider) throws AlgebricksException {
+        this.finfo = finfo;
+        this.evaluatorFactories = args;
+        this.out = outputProvider;
+        argumentEvaluators = new ICopyEvaluator[args.length];
+        for (int i = 0; i < args.length; i++) {
+            argumentEvaluators[i] = args[i].createEvaluator(inputVal);
+        }
+        functionHelper = new JavaFunctionHelper(finfo, outputProvider);
+
+        String[] fnameComponents = finfo.getFunctionIdentifier().getName().split("#");
+        String functionLibary = fnameComponents[0];
+        String dataverse = finfo.getFunctionIdentifier().getNamespace();
+        ClassLoader libraryClassLoader = ExternalLibraryManager.getLibraryClassLoader(dataverse, functionLibary);
+        String classname = finfo.getFunctionBody().trim();
+        Class clazz;
+        try {
+            clazz = Class.forName(classname, true, libraryClassLoader);
+            externalFunctionFactory = (IFunctionFactory) clazz.newInstance();
+            externalFunction = externalFunctionFactory.getExternalFunction();
+        } catch (Exception e) {
+            throw new AlgebricksException(" Unable to load/instantiate class " + classname, e);
+        }
+    }
+
+    public static ISerializerDeserializer getSerDe(Object typeInfo) {
+        return AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(typeInfo);
+    }
+
+    public IExternalFunctionInfo getFinfo() {
+        return finfo;
+    }
+
+    public void setArguments(IFrameTupleReference tuple) throws AlgebricksException, IOException, AsterixException {
+        for (int i = 0; i < evaluatorFactories.length; i++) {
+            inputVal.reset();
+            argumentEvaluators[i].evaluate(tuple);
+            functionHelper.setArgument(i, inputVal.getByteArray());
+        }
+    }
+
+    @Override
+    public void deinitialize() {
+        externalFunction.deinitialize();
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java
new file mode 100755
index 0000000..b5888a6
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java
@@ -0,0 +1,51 @@
+package edu.uci.ics.asterix.external.library;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+
+public class ExternalFunctionDescriptorProvider {
+
+    public static IFunctionDescriptor getExternalFunctionDescriptor(IExternalFunctionInfo finfo) throws AsterixException {
+        switch (finfo.getKind()) {
+            case SCALAR:
+                return new ExternalScalarFunctionDescriptor(finfo);
+            case AGGREGATE:
+            case UNNEST:
+                throw new AsterixException("Unsupported function kind :" + finfo.getKind());
+            default:
+                break;
+        }
+        return null;
+    }
+
+}
+
+class ExternalScalarFunctionDescriptor extends AbstractScalarFunctionDynamicDescriptor implements IFunctionDescriptor {
+
+    private final IFunctionInfo finfo;
+    private ICopyEvaluatorFactory evaluatorFactory;
+    private ICopyEvaluatorFactory[] args;
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        evaluatorFactory = new ExternalScalarFunctionEvaluatorFactory((IExternalFunctionInfo) finfo, args);
+        return evaluatorFactory;
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return finfo.getFunctionIdentifier();
+    }
+
+    public ExternalScalarFunctionDescriptor(IFunctionInfo finfo) {
+        this.finfo = finfo;
+    }
+
+}
+
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionProvider.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionProvider.java
new file mode 100755
index 0000000..db6c224
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionProvider.java
@@ -0,0 +1,65 @@
+package edu.uci.ics.asterix.external.library;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class ExternalFunctionProvider {
+
+    private static Map<IExternalFunctionInfo, ExternalScalarFunction> functionRepo = new HashMap<IExternalFunctionInfo, ExternalScalarFunction>();
+
+    public static IExternalFunction getExternalFunctionEvaluator(IExternalFunctionInfo finfo,
+            ICopyEvaluatorFactory args[], IDataOutputProvider outputProvider) throws AlgebricksException {
+        switch (finfo.getKind()) {
+            case SCALAR:
+                ExternalScalarFunction function = functionRepo.get(finfo);
+                function = new ExternalScalarFunction(finfo, args, outputProvider);
+                // functionRepo.put(finfo, function);
+                return function;
+            case AGGREGATE:
+            case UNNEST:
+                throw new IllegalArgumentException(" not supported function kind" + finfo.getKind());
+            default:
+                throw new IllegalArgumentException(" unknown function kind" + finfo.getKind());
+        }
+    }
+}
+
+class ExternalScalarFunction extends ExternalFunction implements IExternalScalarFunction, ICopyEvaluator {
+
+    public ExternalScalarFunction(IExternalFunctionInfo finfo, ICopyEvaluatorFactory args[],
+            IDataOutputProvider outputProvider) throws AlgebricksException {
+        super(finfo, args, outputProvider);
+        try {
+            initialize(functionHelper);
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        try {
+            setArguments(tuple);
+            evaluate(functionHelper);
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    public void evaluate(IFunctionHelper argumentProvider) throws Exception {
+        ((IExternalScalarFunction) externalFunction).evaluate(argumentProvider);
+    }
+
+    @Override
+    public void initialize(IFunctionHelper functionHelper) throws Exception {
+        ((IExternalScalarFunction) externalFunction).initialize(functionHelper);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalLibraryManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalLibraryManager.java
new file mode 100755
index 0000000..520020d
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalLibraryManager.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class ExternalLibraryManager {
+
+    private static Map<String, ClassLoader> libraryClassLoaders = new HashMap<String, ClassLoader>();
+
+    public static void registerLibraryClassLoader(String dataverseName, String libraryName, ClassLoader classLoader) {
+        String key = dataverseName + "." + libraryName;
+        synchronized (libraryClassLoaders) {
+            if (libraryClassLoaders.get(dataverseName) != null) {
+                throw new IllegalStateException("library class loader already registered!");
+            }
+            libraryClassLoaders.put(key, classLoader);
+        }
+    }
+
+    public static void deregisterLibraryClassLoader(String dataverseName, String libraryName) {
+        String key = dataverseName + "." + libraryName;
+        synchronized (libraryClassLoaders) {
+            if (libraryClassLoaders.get(dataverseName) != null) {
+                libraryClassLoaders.remove(key);
+            }
+        }
+    }
+
+    public static ClassLoader getLibraryClassLoader(String dataverseName, String libraryName) {
+        String key = dataverseName + "." + libraryName;
+        synchronized (libraryClassLoaders) {
+            return libraryClassLoaders.get(key);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalScalarFunctionEvaluatorFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalScalarFunctionEvaluatorFactory.java
new file mode 100755
index 0000000..a185000
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalScalarFunctionEvaluatorFactory.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class ExternalScalarFunctionEvaluatorFactory implements ICopyEvaluatorFactory {
+
+    private final IExternalFunctionInfo finfo;
+    private final ICopyEvaluatorFactory[] args;
+
+    public ExternalScalarFunctionEvaluatorFactory(IExternalFunctionInfo finfo, ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        this.finfo = finfo;
+        this.args = args;
+    }
+
+    @Override
+    public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+        return (ExternalScalarFunction) ExternalFunctionProvider.getExternalFunctionEvaluator(finfo, args, output);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalFunction.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalFunction.java
new file mode 100755
index 0000000..e667828
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalFunction.java
@@ -0,0 +1,7 @@
+package edu.uci.ics.asterix.external.library;
+
+public interface IExternalFunction {
+
+    public void deinitialize();
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalScalarFunction.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalScalarFunction.java
new file mode 100755
index 0000000..09451d8
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IExternalScalarFunction.java
@@ -0,0 +1,9 @@
+package edu.uci.ics.asterix.external.library;
+
+public interface IExternalScalarFunction extends IExternalFunction {
+
+    public void initialize(IFunctionHelper functionHelper) throws Exception;
+
+    public void evaluate(IFunctionHelper functionHelper) throws Exception;
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionFactory.java
new file mode 100755
index 0000000..f67957d
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionFactory.java
@@ -0,0 +1,7 @@
+package edu.uci.ics.asterix.external.library;
+
+public interface IFunctionFactory {
+
+    public IExternalFunction getExternalFunction();
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java
new file mode 100755
index 0000000..0192e33
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.library.java.IJObject;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+
+public interface IFunctionHelper {
+
+    public IJObject getArgument(int index);
+
+    public IJObject getResultObject();
+
+    public void setResult(IJObject result) throws IOException, AsterixException;
+    
+    public IJObject getObject(JTypeTag jtypeTag);
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java
new file mode 100755
index 0000000..fee002e
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.AOrderedList;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.IAObject;
+
+public interface IResultCollector {
+
+    public void writeIntResult(int result) throws AsterixException;
+
+    public void writeFloatResult(float result) throws AsterixException;
+
+    public void writeDoubleResult(double result) throws AsterixException;
+
+    public void writeStringResult(String result) throws AsterixException;
+
+    public void writeRecordResult(ARecord result) throws AsterixException;
+
+    public void writeListResult(AOrderedList list) throws AsterixException;
+
+    public IAObject getComplexTypeResultHolder();
+    
+    public DataOutput getDataOutput();
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JTypeObjectFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JTypeObjectFactory.java
new file mode 100644
index 0000000..ad56981
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JTypeObjectFactory.java
@@ -0,0 +1,115 @@
+package edu.uci.ics.asterix.external.library;
+
+import java.util.ArrayList;
+
+import edu.uci.ics.asterix.external.library.java.IJObject;
+import edu.uci.ics.asterix.external.library.java.JObjects.JBoolean;
+import edu.uci.ics.asterix.external.library.java.JObjects.JCircle;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDate;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDateTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDouble;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDuration;
+import edu.uci.ics.asterix.external.library.java.JObjects.JFloat;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInt;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInterval;
+import edu.uci.ics.asterix.external.library.java.JObjects.JLine;
+import edu.uci.ics.asterix.external.library.java.JObjects.JLong;
+import edu.uci.ics.asterix.external.library.java.JObjects.JOrderedList;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint3D;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPolygon;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRectangle;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+import edu.uci.ics.asterix.external.library.java.JObjects.JTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JUnorderedList;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.container.IObjectFactory;
+
+public class JTypeObjectFactory implements IObjectFactory<IJObject, IAType> {
+
+    @Override
+    public IJObject create(IAType type) {
+        IJObject retValue = null;
+        switch (type.getTypeTag()) {
+            case INT32:
+                retValue = new JInt(0);
+                break;
+            case STRING:
+                retValue = new JString("");
+                break;
+            case FLOAT:
+                retValue = new JFloat(0);
+                break;
+            case DOUBLE:
+                retValue = new JDouble(0);
+                break;
+            case BOOLEAN:
+                retValue = new JBoolean(false);
+                break;
+            case CIRCLE:
+                retValue = new JCircle(new JPoint(0, 0), 0);
+                break;
+            case POINT:
+                retValue = new JPoint(0, 0);
+                break;
+            case POINT3D:
+                retValue = new JPoint3D(0, 0, 0);
+                break;
+            case POLYGON:
+                retValue = new JPolygon(new ArrayList<JPoint>());
+                break;
+            case LINE:
+                retValue = new JLine(new JPoint(0, 0), new JPoint(0, 0));
+                break;
+            case RECTANGLE:
+                retValue = new JRectangle(new JPoint(0, 0), new JPoint(1, 1));
+                break;
+            case DATE:
+                retValue = new JDate(0);
+                break;
+            case DATETIME:
+                retValue = new JDateTime(0);
+                break;
+            case DURATION:
+                retValue = new JDuration(0, 0);
+                break;
+            case INTERVAL:
+                retValue = new JInterval(0, 0);
+                break;
+            case TIME:
+                retValue = new JTime(0);
+                break;
+            case INT64:
+                retValue = new JLong(0);
+                break;
+            case ORDEREDLIST:
+                AOrderedListType ot = (AOrderedListType) type;
+                IAType orderedItemType = ot.getItemType();
+                IJObject orderedItemObject = create(orderedItemType);
+                retValue = new JOrderedList(orderedItemObject);
+                break;
+            case UNORDEREDLIST:
+                AUnorderedListType ut = (AUnorderedListType) type;
+                IAType unorderedItemType = ut.getItemType();
+                IJObject unorderedItemObject = create(unorderedItemType);
+                retValue = new JUnorderedList(unorderedItemObject);
+                break;
+            case RECORD:
+                IAType[] fieldTypes = ((ARecordType) type).getFieldTypes();
+                IJObject[] fieldObjects = new IJObject[fieldTypes.length];
+                int index = 0;
+                for (IAType fieldType : fieldTypes) {
+                    fieldObjects[index] = create(fieldType);
+                    index++;
+                }
+                retValue = new JRecord((ARecordType) type, fieldObjects);
+
+                break;
+        }
+        return retValue;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JavaFunctionHelper.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JavaFunctionHelper.java
new file mode 100644
index 0000000..8aed123
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/JavaFunctionHelper.java
@@ -0,0 +1,201 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.List;
+
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.library.java.IJObject;
+import edu.uci.ics.asterix.external.library.java.JObjectUtil;
+import edu.uci.ics.asterix.external.library.java.JObjects.ByteArrayAccessibleDataInputStream;
+import edu.uci.ics.asterix.external.library.java.JObjects.ByteArrayAccessibleInputStream;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.container.IObjectPool;
+import edu.uci.ics.asterix.om.util.container.ListObjectPool;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+
+public class JavaFunctionHelper implements IFunctionHelper {
+
+    private final IExternalFunctionInfo finfo;
+    private final IDataOutputProvider outputProvider;
+    private IJObject[] arguments;
+    private IJObject resultHolder;
+    private IAObject innerResult;
+    private ISerializerDeserializer resultSerde;
+    private IObjectPool<IJObject, IAType> objectPool = new ListObjectPool<IJObject, IAType>(new JTypeObjectFactory());
+    byte[] buffer = new byte[32768];
+    ByteArrayAccessibleInputStream bis = new ByteArrayAccessibleInputStream(buffer, 0, buffer.length);
+    ByteArrayAccessibleDataInputStream dis = new ByteArrayAccessibleDataInputStream(bis);
+
+    public JavaFunctionHelper(IExternalFunctionInfo finfo, IDataOutputProvider outputProvider)
+            throws AlgebricksException {
+        this.finfo = finfo;
+        this.outputProvider = outputProvider;
+        List<IAType> params = finfo.getParamList();
+        arguments = new IJObject[params.size()];
+        int index = 0;
+        for (IAType param : params) {
+            this.arguments[index] = objectPool.allocate(param);
+            index++;
+        }
+        resultHolder = objectPool.allocate(finfo.getReturnType());
+    }
+
+    @Override
+    public IJObject getArgument(int index) {
+        return arguments[index];
+    }
+
+    @Override
+    public void setResult(IJObject result) throws IOException, AsterixException {
+        IAObject obj = result.getIAObject();
+        try {
+            outputProvider.getDataOutput().writeByte(obj.getType().getTypeTag().serialize());
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+
+        if (obj.getType().getTypeTag().equals(ATypeTag.RECORD)) {
+            ARecordType recType = (ARecordType) obj.getType();
+            if (recType.isOpen()) {
+                writeOpenRecord((JRecord) result, outputProvider.getDataOutput());
+            } else {
+                resultSerde = AqlSerializerDeserializerProvider.INSTANCE.getNonTaggedSerializerDeserializer(recType);
+                resultSerde.serialize(obj, outputProvider.getDataOutput());
+            }
+        } else {
+            resultSerde = AqlSerializerDeserializerProvider.INSTANCE.getNonTaggedSerializerDeserializer(obj.getType());
+            resultSerde.serialize(obj, outputProvider.getDataOutput());
+        }
+        reset();
+    }
+
+    private void writeOpenRecord(JRecord jRecord, DataOutput dataOutput) throws AsterixException, IOException {
+        ARecord aRecord = (ARecord) jRecord.getIAObject();
+        RecordBuilder recordBuilder = new RecordBuilder();
+        ARecordType recordType = aRecord.getType();
+        recordBuilder.reset(recordType);
+        ArrayBackedValueStorage fieldName = new ArrayBackedValueStorage();
+        ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
+        List<Boolean> openField = jRecord.getOpenField();
+
+        int fieldIndex = 0;
+        int closedFieldId = 0;
+        for (IJObject field : jRecord.getFields()) {
+            fieldValue.reset();
+            switch (field.getTypeTag()) {
+                case RECORD:
+                    ARecordType recType = (ARecordType) field.getIAObject().getType();
+                    if (recType.isOpen()) {
+                        fieldValue.getDataOutput().writeByte(recType.getTypeTag().serialize());
+                        writeOpenRecord((JRecord) field, fieldValue.getDataOutput());
+                    } else {
+                        AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(
+                                field.getIAObject().getType()).serialize(field.getIAObject(),
+                                fieldValue.getDataOutput());
+                    }
+                    break;
+                default:
+                    AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(field.getIAObject().getType())
+                            .serialize(field.getIAObject(), fieldValue.getDataOutput());
+                    break;
+            }
+            if (openField.get(fieldIndex)) {
+                String fName = jRecord.getFieldNames().get(fieldIndex);
+                fieldName.reset();
+                AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING).serialize(
+                        new AString(fName), fieldName.getDataOutput());
+                recordBuilder.addField(fieldName, fieldValue);
+            } else {
+                recordBuilder.addField(closedFieldId, fieldValue);
+                closedFieldId++;
+            }
+            fieldIndex++;
+        }
+
+        recordBuilder.write(dataOutput, false);
+
+    }
+
+    private void reset() {
+        for (IJObject jObject : arguments) {
+            switch (jObject.getTypeTag()) {
+                case RECORD:
+                    reset((JRecord) jObject);
+                    break;
+            }
+        }
+        switch (resultHolder.getTypeTag()) {
+            case RECORD:
+                reset((JRecord) resultHolder);
+                break;
+        }
+    }
+
+    private void reset(JRecord jRecord) {
+        List<IJObject> fields = ((JRecord) jRecord).getFields();
+        for (IJObject field : fields) {
+            switch (field.getTypeTag()) {
+                case RECORD:
+                    reset((JRecord) field);
+                    break;
+            }
+        }
+        jRecord.close();
+    }
+
+    public void setArgument(int index, byte[] argument) throws IOException, AsterixException {
+        bis.setContent(argument, 1, argument.length);
+        IAType type = finfo.getParamList().get(index);
+        arguments[index] = JObjectUtil.getJType(type.getTypeTag(), type, dis, objectPool);
+    }
+
+    @Override
+    public IJObject getResultObject() {
+        return resultHolder;
+    }
+
+    @Override
+    public IJObject getObject(JTypeTag jtypeTag) {
+        IJObject retValue = null;
+        switch (jtypeTag) {
+            case INT:
+                retValue = objectPool.allocate(BuiltinType.AINT32);
+                break;
+            case STRING:
+                retValue = objectPool.allocate(BuiltinType.ASTRING);
+                break;
+        }
+        return retValue;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ResultCollector.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ResultCollector.java
new file mode 100755
index 0000000..d53b044
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ResultCollector.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.io.DataOutput;
+import java.nio.ByteBuffer;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableOrderedList;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.AOrderedList;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class ResultCollector implements IResultCollector {
+
+    private IAObject reusableResultObjectHolder;
+    private ByteBuffer reusableResultBinaryHolder;
+    private IDataOutputProvider outputProvider;
+    private IExternalFunctionInfo finfo;
+
+    public ResultCollector(IExternalFunctionInfo finfo, IDataOutputProvider outputProvider) {
+        this.finfo = finfo;
+        IAType returnType = finfo.getReturnType();
+        reusableResultObjectHolder = allocateResultObjectHolder(returnType);
+        reusableResultBinaryHolder = allocateResultBinaryHolder(returnType);
+        this.outputProvider = outputProvider;
+    }
+
+    private IAObject allocateResultObjectHolder(IAType type) {
+        switch (type.getTypeTag()) {
+            case INT32:
+                return new AMutableInt32(0);
+            case FLOAT:
+                return new AMutableFloat(0f);
+            case DOUBLE:
+                return new AMutableDouble(0);
+            case STRING:
+                return new AMutableString("");
+            case ORDEREDLIST:
+                return new AMutableOrderedList((AOrderedListType) type);
+            case RECORD:
+                IAType[] fieldType = ((ARecordType) type).getFieldTypes();
+                IAObject[] fieldObjects = new IAObject[fieldType.length];
+                for (int i = 0; i < fieldType.length; i++) {
+                    fieldObjects[i] = allocateResultObjectHolder(fieldType[i]);
+                }
+                return new AMutableRecord((ARecordType) type, fieldObjects);
+        }
+        return null;
+    }
+
+    private ByteBuffer allocateResultBinaryHolder(IAType type) {
+        switch (type.getTypeTag()) {
+            case INT32:
+                return ByteBuffer.allocate(4);
+            case FLOAT:
+                return ByteBuffer.allocate(4);
+            case DOUBLE:
+                return ByteBuffer.allocate(8);
+            case STRING:
+                return ByteBuffer.allocate(32 * 1024);
+            case ORDEREDLIST:
+                return ByteBuffer.allocate(32 * 1024);
+            case RECORD:
+                return ByteBuffer.allocate(32 * 1024);
+        }
+        return null;
+    }
+
+    @Override
+    public void writeDoubleResult(double result) throws AsterixException {
+        ((AMutableDouble) reusableResultObjectHolder).setValue(result);
+        serializeResult(reusableResultObjectHolder);
+    }
+
+    @Override
+    public void writeFloatResult(float result) throws AsterixException {
+        ((AMutableDouble) reusableResultObjectHolder).setValue(result);
+        serializeResult(reusableResultObjectHolder);
+    }
+
+    @Override
+    public void writeIntResult(int result) throws AsterixException {
+        ((AMutableInt32) reusableResultObjectHolder).setValue(result);
+        serializeResult(reusableResultObjectHolder);
+    }
+
+    @Override
+    public void writeStringResult(String result) throws AsterixException {
+        ((AMutableString) reusableResultObjectHolder).setValue(result);
+        serializeResult(reusableResultObjectHolder);
+
+    }
+
+    @Override
+    public void writeRecordResult(ARecord result) throws AsterixException {
+        serializeResult(result);
+    }
+
+    @Override
+    public void writeListResult(AOrderedList list) throws AsterixException {
+        serializeResult(list);
+    }
+
+    public IAObject getComplexTypeResultHolder() {
+        return reusableResultObjectHolder;
+    }
+
+    private void serializeResult(IAObject object) throws AsterixException {
+        try {
+            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(finfo.getReturnType()).serialize(
+                    reusableResultObjectHolder, outputProvider.getDataOutput());
+        } catch (HyracksDataException hde) {
+            throw new AsterixException(hde);
+        }
+    }
+
+    @Override
+    public DataOutput getDataOutput() {
+        return outputProvider.getDataOutput();
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java
new file mode 100755
index 0000000..0c6713d
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java
@@ -0,0 +1,100 @@
+package edu.uci.ics.asterix.external.library;
+
+import java.io.File;
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.functions.IExternalFunctionInfo;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+
+public class RuntimeExternalFunctionUtil {
+
+    private static Map<String, ClassLoader> libraryClassLoaders = new HashMap<String, ClassLoader>();
+
+    public static void registerLibraryClassLoader(String dataverseName, String libraryName, ClassLoader classLoader) {
+        String key = dataverseName + "." + libraryName;
+        synchronized (libraryClassLoaders) {
+            if (libraryClassLoaders.get(dataverseName) != null) {
+                throw new IllegalStateException("library class loader already registered!");
+            }
+            libraryClassLoaders.put(key, classLoader);
+        }
+    }
+
+    public static ClassLoader getLibraryClassLoader(String dataverseName, String libraryName) {
+        String key = dataverseName + "." + libraryName;
+        synchronized (libraryClassLoaders) {
+            return libraryClassLoaders.get(key);
+        }
+    }
+
+    public static IFunctionDescriptor getFunctionDescriptor(IFunctionInfo finfo) {
+        switch (((IExternalFunctionInfo) finfo).getKind()) {
+            case SCALAR:
+                return getScalarFunctionDescriptor(finfo);
+            case AGGREGATE:
+            case UNNEST:
+            case STATEFUL:
+                throw new NotImplementedException("External " + finfo.getFunctionIdentifier().getName()
+                        + " not supported");
+        }
+        return null;
+    }
+
+    private static AbstractScalarFunctionDynamicDescriptor getScalarFunctionDescriptor(IFunctionInfo finfo) {
+        return new ExternalScalarFunctionDescriptor(finfo);
+    }
+
+    public static ByteBuffer allocateArgumentBuffers(IAType type) {
+        switch (type.getTypeTag()) {
+            case INT32:
+                return ByteBuffer.allocate(4);
+            case STRING:
+                return ByteBuffer.allocate(32 * 1024);
+            default:
+                return ByteBuffer.allocate(32 * 1024);
+        }
+    }
+
+    public static IAObject allocateArgumentObjects(IAType type) {
+        switch (type.getTypeTag()) {
+            case INT32:
+                return new AMutableInt32(0);
+            case STRING:
+                return new AMutableString("");
+            default:
+                return null;
+                /*
+                ARecordType recordType = (ARecordType) type;
+                IAType[] fieldTypes = recordType.getFieldTypes();
+                IAObject[] fields = new IAObject[fieldTypes.length];
+                for (int i = 0; i < fields.length; i++) {
+                    fields[i] = allocateArgumentObjects(fieldTypes[i]);
+                }
+                return new AMutableRecord((ARecordType) type, fields);
+                */
+        }
+    }
+
+    public static File getExternalLibraryDeployDir(String nodeId) {
+        String filePath = null;
+        if (nodeId != null) {
+            filePath = "edu.uci.ics.hyracks.control.nc.NodeControllerService" + "/" + nodeId + "/"
+                    + "applications/asterix/expanded/external-lib/libraries";
+        } else {
+            filePath = "ClusterControllerService" + "/" + "applications/asterix/expanded/external-lib/libraries";
+
+        }
+        return new File(filePath);
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJObject.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJObject.java
new file mode 100644
index 0000000..1561c42
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJObject.java
@@ -0,0 +1,11 @@
+package edu.uci.ics.asterix.external.library.java;
+
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+
+public interface IJObject {
+
+    public ATypeTag getTypeTag();
+
+    public IAObject getIAObject();
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java
new file mode 100644
index 0000000..fcc35eb
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java
@@ -0,0 +1,11 @@
+package edu.uci.ics.asterix.external.library.java;
+
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+
+public interface IJType {
+
+      public ATypeTag getTypeTag();
+      
+      public IAObject getIAObject();
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjectUtil.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjectUtil.java
new file mode 100644
index 0000000..52071af
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjectUtil.java
@@ -0,0 +1,399 @@
+package edu.uci.ics.asterix.external.library.java;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AStringSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.SerializerDeserializerUtil;
+import edu.uci.ics.asterix.external.library.java.JObjects.ByteArrayAccessibleDataInputStream;
+import edu.uci.ics.asterix.external.library.java.JObjects.JBoolean;
+import edu.uci.ics.asterix.external.library.java.JObjects.JCircle;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDate;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDateTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDouble;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDuration;
+import edu.uci.ics.asterix.external.library.java.JObjects.JFloat;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInt;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInterval;
+import edu.uci.ics.asterix.external.library.java.JObjects.JLine;
+import edu.uci.ics.asterix.external.library.java.JObjects.JOrderedList;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint3D;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPolygon;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRectangle;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+import edu.uci.ics.asterix.external.library.java.JObjects.JTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JUnorderedList;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.om.util.container.IObjectPool;
+
+public class JObjectUtil {
+
+    public static IJObject getJType(ATypeTag typeTag, IAType type, ByteArrayAccessibleDataInputStream dis,
+            IObjectPool<IJObject, IAType> objectPool) throws IOException, AsterixException {
+        IJObject jObject;
+
+        switch (typeTag) {
+
+            case INT32: {
+                int v = dis.readInt();
+                jObject = objectPool.allocate(BuiltinType.AINT32);
+                ((JInt) jObject).setValue(v);
+                break;
+            }
+
+            case FLOAT: {
+                float v = dis.readFloat();
+                jObject = objectPool.allocate(BuiltinType.AFLOAT);
+                ((JFloat) jObject).setValue(v);
+                break;
+            }
+
+            case DOUBLE: {
+                double value = dis.readDouble();
+                jObject = objectPool.allocate(BuiltinType.ADOUBLE);
+                ((JDouble) jObject).setValue(value);
+                break;
+            }
+
+            case STRING: {
+                String v = dis.readUTF();
+                jObject = objectPool.allocate(BuiltinType.ASTRING);
+                ((JString) jObject).setValue(v);
+                break;
+            }
+
+            case BOOLEAN:
+                jObject = objectPool.allocate(BuiltinType.ABOOLEAN);
+                ((JBoolean) jObject).setValue(dis.readBoolean());
+                break;
+
+            case DATE: {
+                int d = dis.readInt();
+                jObject = objectPool.allocate(BuiltinType.ADATE);
+                ((JDate) jObject).setValue(d);
+                break;
+            }
+
+            case DATETIME: {
+                jObject = objectPool.allocate(BuiltinType.ADATETIME);
+                long value = dis.readLong();
+                ((JDateTime) jObject).setValue(value);
+                break;
+            }
+
+            case DURATION: {
+                jObject = objectPool.allocate(BuiltinType.ADURATION);
+                int months = dis.readInt();
+                long msecs = dis.readLong();
+                ((JDuration) jObject).setValue(months, msecs);
+                break;
+            }
+
+            case TIME: {
+                jObject = objectPool.allocate(BuiltinType.ATIME);
+                int time = dis.readInt();
+                ((JTime) jObject).setValue(time);
+                break;
+            }
+
+            case INTERVAL: {
+                jObject = objectPool.allocate(BuiltinType.AINTERVAL);
+                long start = dis.readLong();
+                long end = dis.readLong();
+                byte intervalType = dis.readByte();
+                ((JInterval) jObject).setValue(start, end, intervalType);
+                break;
+            }
+
+            case CIRCLE: {
+                jObject = objectPool.allocate(BuiltinType.ACIRCLE);
+                double x = dis.readDouble();
+                double y = dis.readDouble();
+                double radius = dis.readDouble();
+                JPoint jpoint = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                jpoint.setValue(x, y);
+                ((JCircle) jObject).setValue(jpoint, radius);
+                break;
+            }
+
+            case POINT: {
+                jObject = objectPool.allocate(BuiltinType.APOINT);
+                double x = dis.readDouble();
+                double y = dis.readDouble();
+                ((JPoint) jObject).setValue(x, y);
+                break;
+            }
+
+            case POINT3D: {
+                jObject = objectPool.allocate(BuiltinType.APOINT3D);
+                double x = dis.readDouble();
+                double y = dis.readDouble();
+                double z = dis.readDouble();
+                ((JPoint3D) jObject).setValue(x, y, z);
+                break;
+            }
+
+            case LINE: {
+                jObject = objectPool.allocate(BuiltinType.ALINE);
+                double x1 = dis.readDouble();
+                double y1 = dis.readDouble();
+                double x2 = dis.readDouble();
+                double y2 = dis.readDouble();
+                JPoint jpoint1 = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                jpoint1.setValue(x1, y1);
+                JPoint jpoint2 = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                jpoint2.setValue(x2, y2);
+                ((JLine) jObject).setValue(jpoint1, jpoint2);
+                break;
+            }
+
+            case POLYGON: {
+                jObject = objectPool.allocate(BuiltinType.APOLYGON);
+                short numberOfPoints = dis.readShort();
+                List<JPoint> points = new ArrayList<JPoint>();
+                for (int i = 0; i < numberOfPoints; i++) {
+                    JPoint p1 = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                    p1.setValue(dis.readDouble(), dis.readDouble());
+                    points.add(p1);
+                }
+                ((JPolygon) jObject).setValue(points);
+                break;
+            }
+
+            case RECTANGLE: {
+                jObject = objectPool.allocate(BuiltinType.ARECTANGLE);
+                double x1 = dis.readDouble();
+                double y1 = dis.readDouble();
+                double x2 = dis.readDouble();
+                double y2 = dis.readDouble();
+                JPoint jpoint1 = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                jpoint1.setValue(x1, y1);
+                JPoint jpoint2 = (JPoint) objectPool.allocate(BuiltinType.APOINT);
+                jpoint2.setValue(x2, y2);
+                ((JRectangle) jObject).setValue(jpoint1, jpoint2);
+                break;
+            }
+
+            case UNORDEREDLIST: {
+                AUnorderedListType listType = (AUnorderedListType) type;
+                IAType elementType = listType.getItemType();
+                jObject = objectPool.allocate(listType);
+
+                boolean fixedSize = false;
+                ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(dis.readByte());
+                switch (tag) {
+                    case STRING:
+                    case RECORD:
+                    case ORDEREDLIST:
+                    case UNORDEREDLIST:
+                    case ANY:
+                        fixedSize = false;
+                        break;
+                    default:
+                        fixedSize = true;
+                        break;
+                }
+                dis.readInt(); // list size
+                int numberOfitems;
+                numberOfitems = dis.readInt();
+                if (numberOfitems > 0) {
+                    if (!fixedSize) {
+                        for (int i = 0; i < numberOfitems; i++)
+                            dis.readInt();
+                    }
+                    for (int i = 0; i < numberOfitems; i++) {
+                        IJObject v = (IJObject) getJType(elementType.getTypeTag(), elementType, dis, objectPool);
+                        ((JUnorderedList) jObject).add(v);
+                    }
+                }
+
+                break;
+            }
+            case ORDEREDLIST: {
+                AOrderedListType listType = (AOrderedListType) type;
+                IAType elementType = listType.getItemType();
+                jObject = objectPool.allocate(listType);
+                boolean fixedSize = false;
+                ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(dis.readByte());
+                switch (tag) {
+                    case STRING:
+                    case RECORD:
+                    case ORDEREDLIST:
+                    case UNORDEREDLIST:
+                    case ANY:
+                        fixedSize = false;
+                        break;
+                    default:
+                        fixedSize = true;
+                        break;
+                }
+
+                dis.readInt(); // list size
+                int numberOfitems;
+                numberOfitems = dis.readInt();
+                if (numberOfitems > 0) {
+                    if (!fixedSize) {
+                        for (int i = 0; i < numberOfitems; i++)
+                            dis.readInt();
+                    }
+                    for (int i = 0; i < numberOfitems; i++) {
+                        IJObject v = (IJObject) getJType(elementType.getTypeTag(), elementType, dis, objectPool);
+                        ((JOrderedList) jObject).add(v);
+                    }
+                }
+
+                break;
+            }
+            case RECORD:
+                ARecordType recordType = (ARecordType) type;
+                int numberOfSchemaFields = recordType.getFieldTypes().length;
+                byte[] recordBits = dis.getInputStream().getArray();
+                boolean isExpanded = false;
+                int s = dis.getInputStream().getPosition();
+                int recordOffset = s;
+                int openPartOffset = 0;
+                int offsetArrayOffset = 0;
+                int[] fieldOffsets = new int[numberOfSchemaFields];
+                IJObject[] closedFields = new IJObject[numberOfSchemaFields];
+
+                if (recordType == null) {
+                    openPartOffset = s + AInt32SerializerDeserializer.getInt(recordBits, s + 6);
+                    s += 8;
+                    isExpanded = true;
+                } else {
+                    dis.skip(4); // reading length is not required.
+                    if (recordType.isOpen()) {
+                        isExpanded = dis.readBoolean();
+                        if (isExpanded) {
+                            openPartOffset = s + dis.readInt(); // AInt32SerializerDeserializer.getInt(recordBits, s + 6);
+                        } else {
+                            // do nothing s += 6;
+                        }
+                    } else {
+                        // do nothing s += 5;
+                    }
+                }
+
+                if (numberOfSchemaFields > 0) {
+                    int numOfSchemaFields = dis.readInt(); //s += 4;
+                    int nullBitMapOffset = 0;
+                    boolean hasNullableFields = NonTaggedFormatUtil.hasNullableField(recordType);
+                    if (hasNullableFields) {
+                        nullBitMapOffset = dis.getInputStream().getPosition();//s
+                        offsetArrayOffset = dis.getInputStream().getPosition() //s
+                                + (numberOfSchemaFields % 8 == 0 ? numberOfSchemaFields / 8
+                                        : numberOfSchemaFields / 8 + 1);
+                    } else {
+                        offsetArrayOffset = dis.getInputStream().getPosition();
+                    }
+                    for (int i = 0; i < numberOfSchemaFields; i++) {
+                        fieldOffsets[i] = dis.readInt(); // AInt32SerializerDeserializer.getInt(recordBits, offsetArrayOffset) + recordOffset;
+                        // offsetArrayOffset += 4;
+                    }
+                    for (int fieldNumber = 0; fieldNumber < numberOfSchemaFields; fieldNumber++) {
+                        if (hasNullableFields) {
+                            byte b1 = recordBits[nullBitMapOffset + fieldNumber / 8];
+                            int p = 1 << (7 - (fieldNumber % 8));
+                            if ((b1 & p) == 0) {
+                                // set null value (including type tag inside)
+                                //fieldValues.add(nullReference);
+                                continue;
+                            }
+                        }
+                        IAType[] fieldTypes = recordType.getFieldTypes();
+                        ATypeTag fieldValueTypeTag = null;
+
+                        IAType fieldType = fieldTypes[fieldNumber];
+                        if (fieldTypes[fieldNumber].getTypeTag() == ATypeTag.UNION) {
+                            if (NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[fieldNumber])) {
+                                fieldType = ((AUnionType) fieldTypes[fieldNumber]).getUnionList().get(
+                                        NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+                                fieldValueTypeTag = fieldType.getTypeTag();
+                                //                      fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(recordBits,
+                                //                              fieldOffsets[fieldNumber], typeTag, false);
+                            }
+                        } else {
+                            fieldValueTypeTag = fieldTypes[fieldNumber].getTypeTag();
+                        }
+                        closedFields[fieldNumber] = getJType(fieldValueTypeTag, fieldType, dis, objectPool);
+                    }
+                }
+                if (isExpanded) {
+                    int numberOfOpenFields = dis.readInt();
+                    String[] fieldNames = new String[numberOfOpenFields];
+                    IAType[] fieldTypes = new IAType[numberOfOpenFields];
+                    IJObject[] openFields = new IJObject[numberOfOpenFields];
+                    for (int i = 0; i < numberOfOpenFields; i++) {
+                        dis.readInt();
+                        dis.readInt();
+                    }
+                    for (int i = 0; i < numberOfOpenFields; i++) {
+                        fieldNames[i] = AStringSerializerDeserializer.INSTANCE.deserialize(dis).getStringValue();
+                        ATypeTag openFieldTypeTag = SerializerDeserializerUtil.deserializeTag(dis);
+                        openFields[i] = getJType(openFieldTypeTag, null, dis, objectPool);
+                        fieldTypes[i] = openFields[i].getIAObject().getType();
+                    }
+                    ARecordType openPartRecType = new ARecordType(null, fieldNames, fieldTypes, true);
+                    if (numberOfSchemaFields > 0) {
+                        ARecordType mergedRecordType = mergeRecordTypes(recordType, openPartRecType);
+                        IJObject[] mergedFields = mergeFields(closedFields, openFields);
+                        jObject = objectPool.allocate(recordType);
+                        return new JRecord(mergedRecordType, mergedFields);
+                    } else {
+                        return new JRecord(recordType, openFields);
+                    }
+                } else {
+                    return new JRecord(recordType, closedFields);
+                }
+
+            default:
+                throw new IllegalStateException("Argument type: " + typeTag);
+        }
+        return jObject;
+    }
+
+    private static IJObject[] mergeFields(IJObject[] closedFields, IJObject[] openFields) {
+        IJObject[] fields = new IJObject[closedFields.length + openFields.length];
+        int i = 0;
+        for (; i < closedFields.length; i++) {
+            fields[i] = closedFields[i];
+        }
+        for (int j = 0; j < openFields.length; j++) {
+            fields[closedFields.length + j] = openFields[j];
+        }
+        return fields;
+    }
+
+    private static ARecordType mergeRecordTypes(ARecordType recType1, ARecordType recType2) throws AsterixException {
+
+        String[] fieldNames = new String[recType1.getFieldNames().length + recType2.getFieldNames().length];
+        IAType[] fieldTypes = new IAType[recType1.getFieldTypes().length + recType2.getFieldTypes().length];
+
+        int i = 0;
+        for (; i < recType1.getFieldNames().length; i++) {
+            fieldNames[i] = recType1.getFieldNames()[i];
+            fieldTypes[i] = recType1.getFieldTypes()[i];
+        }
+
+        for (int j = 0; j < recType2.getFieldNames().length; i++, j++) {
+            fieldNames[i] = recType2.getFieldNames()[j];
+            fieldTypes[i] = recType2.getFieldTypes()[j];
+        }
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjects.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjects.java
new file mode 100644
index 0000000..2fae902
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JObjects.java
@@ -0,0 +1,875 @@
+package edu.uci.ics.asterix.external.library.java;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AMutableCircle;
+import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.AMutableLine;
+import edu.uci.ics.asterix.om.base.AMutableOrderedList;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.AMutablePoint3D;
+import edu.uci.ics.asterix.om.base.AMutablePolygon;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableRectangle;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.AMutableTime;
+import edu.uci.ics.asterix.om.base.AMutableUnorderedList;
+import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+
+public class JObjects {
+
+    public static abstract class JObject implements IJObject {
+
+        protected IAObject value;
+        protected byte[] bytes;
+
+        protected JObject(IAObject value) {
+            this.value = value;
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return value.getType().getTypeTag();
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return value;
+        }
+    }
+
+    public static final class JInt implements IJObject {
+
+        private AMutableInt32 value;
+
+        public JInt(int value) {
+            this.value = new AMutableInt32(value);
+        }
+
+        public void setValue(int v) {
+            if (value == null) {
+                value = new AMutableInt32(v);
+            } else {
+                ((AMutableInt32) value).setValue(v);
+            }
+        }
+
+        public void setValue(AMutableInt32 v) {
+            value = v;
+        }
+
+        public int getValue() {
+            return ((AMutableInt32) value).getIntegerValue().intValue();
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return BuiltinType.AINT32.getTypeTag();
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return value;
+        }
+
+    }
+
+    public static final class JBoolean implements IJObject {
+
+        private boolean value;
+
+        public JBoolean(boolean value) {
+            this.value = value;
+        }
+
+        public void setValue(boolean value) {
+            this.value = value;
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.BOOLEAN;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return value ? ABoolean.TRUE : ABoolean.FALSE;
+        }
+
+    }
+
+    public static final class JLong extends JObject {
+
+        public JLong(long v) {
+            super(new AMutableInt64(v));
+        }
+
+        public void setValue(long v) {
+            ((AMutableInt64) value).setValue(v);
+        }
+
+        public long getValue() {
+            return ((AMutableInt64) value).getLongValue();
+        }
+
+    }
+
+    public static final class JDouble extends JObject {
+
+        public JDouble(double v) {
+            super(new AMutableDouble(v));
+        }
+
+        public void setValue(double v) {
+            ((AMutableDouble) value).setValue(v);
+        }
+
+        public double getValue() {
+            return ((AMutableDouble) value).getDoubleValue();
+        }
+
+    }
+
+    public static final class JString extends JObject {
+
+        public JString(String v) {
+            super(new AMutableString(v));
+        }
+
+        public void setValue(String v) {
+            ((AMutableString) value).setValue(v);
+        }
+
+        public String getValue() {
+            return ((AMutableString) value).getStringValue();
+        }
+
+    }
+
+    public static final class JFloat implements IJObject {
+
+        private AMutableFloat value;
+
+        public JFloat(float v) {
+            value = new AMutableFloat(v);
+        }
+
+        public void setValue(float v) {
+            ((AMutableFloat) value).setValue(v);
+        }
+
+        public float getValue() {
+            return ((AMutableFloat) value).getFloatValue();
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return BuiltinType.AFLOAT.getTypeTag();
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return value;
+        }
+
+    }
+
+    public static final class JPoint extends JObject {
+
+        public JPoint(double x, double y) {
+            super(new AMutablePoint(x, y));
+        }
+
+        public void setValue(double x, double y) {
+            ((AMutablePoint) value).setValue(x, y);
+        }
+
+        public double getXValue() {
+            return ((AMutablePoint) value).getX();
+        }
+
+        public double getYValue() {
+            return ((AMutablePoint) value).getY();
+        }
+
+        public IAObject getValue() {
+            return value;
+        }
+
+        @Override
+        public String toString() {
+            return value.toString();
+        }
+    }
+
+    public static final class JRectangle implements IJObject {
+
+        private AMutableRectangle rect;
+
+        public JRectangle(JPoint p1, JPoint p2) {
+            rect = new AMutableRectangle((APoint) p1.getValue(), (APoint) p2.getValue());
+        }
+
+        public void setValue(JPoint p1, JPoint p2) {
+            this.rect.setValue((APoint) p1.getValue(), (APoint) p2.getValue());
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.RECTANGLE;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return rect;
+        }
+
+        @Override
+        public String toString() {
+            return rect.toString();
+        }
+
+    }
+
+    public static final class JTime implements IJObject {
+
+        private AMutableTime time;
+
+        public JTime(int timeInMillsec) {
+            time = new AMutableTime(timeInMillsec);
+        }
+
+        public void setValue(int timeInMillsec) {
+            time.setValue(timeInMillsec);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.TIME;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return time;
+        }
+
+        @Override
+        public String toString() {
+            return time.toString();
+        }
+
+    }
+
+    public static final class JInterval implements IJObject {
+
+        private AMutableInterval interval;
+
+        public JInterval(long intervalStart, long intervalEnd) {
+            interval = new AMutableInterval(intervalStart, intervalEnd, (byte) 0);
+        }
+
+        public void setValue(long intervalStart, long intervalEnd, byte typetag) {
+            interval.setValue(intervalStart, intervalEnd, typetag);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.INTERVAL;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return interval;
+        }
+
+        @Override
+        public String toString() {
+            return interval.toString();
+        }
+
+        public long getIntervalStart() {
+            return interval.getIntervalStart();
+        }
+
+        public long getIntervalEnd() {
+            return interval.getIntervalEnd();
+        }
+
+        public short getIntervalType() {
+            return interval.getIntervalType();
+        }
+
+    }
+
+    public static final class JDate implements IJObject {
+
+        private AMutableDate date;
+
+        public JDate(int chrononTimeInDays) {
+            date = new AMutableDate(chrononTimeInDays);
+        }
+
+        public void setValue(int chrononTimeInDays) {
+            date.setValue(chrononTimeInDays);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.DATE;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return date;
+        }
+
+        @Override
+        public String toString() {
+            return date.toString();
+        }
+
+    }
+
+    public static final class JDateTime implements IJObject {
+
+        private AMutableDateTime dateTime;
+
+        public JDateTime(long chrononTime) {
+            dateTime = new AMutableDateTime(chrononTime);
+        }
+
+        public void setValue(long chrononTime) {
+            dateTime.setValue(chrononTime);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.DATETIME;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return dateTime;
+        }
+
+        @Override
+        public String toString() {
+            return dateTime.toString();
+        }
+
+    }
+
+    public static final class JDuration implements IJObject {
+
+        private AMutableDuration duration;
+
+        public JDuration(int months, long milliseconds) {
+            duration = new AMutableDuration(months, milliseconds);
+        }
+
+        public void setValue(int months, long milliseconds) {
+            duration.setValue(months, milliseconds);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.DURATION;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return duration;
+        }
+
+        @Override
+        public String toString() {
+            return duration.toString();
+        }
+
+    }
+
+    public static final class JPolygon implements IJObject {
+
+        private AMutablePolygon polygon;
+        private List<JPoint> points;
+
+        public JPolygon(List<JPoint> points) {
+            this.points = points;
+        }
+
+        public void setValue(List<JPoint> points) {
+            this.points = points;
+            polygon = null;
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.POLYGON;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            if (polygon == null) {
+                APoint[] pts = new APoint[points.size()];
+                int index = 0;
+                for (JPoint p : points) {
+                    pts[index++] = (APoint) p.getIAObject();
+                }
+                polygon = new AMutablePolygon(pts);
+            }
+            return polygon;
+        }
+
+        @Override
+        public String toString() {
+            return getIAObject().toString();
+        }
+
+    }
+
+    public static final class JCircle implements IJObject {
+
+        private AMutableCircle circle;
+
+        public JCircle(JPoint center, double radius) {
+            circle = new AMutableCircle((APoint) center.getIAObject(), radius);
+        }
+
+        public void setValue(JPoint center, double radius) {
+            circle.setValue((APoint) center.getIAObject(), radius);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.CIRCLE;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return circle;
+        }
+
+        @Override
+        public String toString() {
+            return circle.toString();
+        }
+
+    }
+
+    public static final class JLine implements IJObject {
+
+        private AMutableLine line;
+
+        public JLine(JPoint p1, JPoint p2) {
+            line = new AMutableLine((APoint) p1.getIAObject(), (APoint) p2.getIAObject());
+        }
+
+        public void setValue(JPoint p1, JPoint p2) {
+            line.setValue((APoint) p1.getIAObject(), (APoint) p2.getIAObject());
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.LINE;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return line;
+        }
+
+        @Override
+        public String toString() {
+            return line.toString();
+        }
+
+    }
+
+    public static final class JPoint3D implements IJObject {
+
+        private AMutablePoint3D value;
+
+        public JPoint3D(double x, double y, double z) {
+            value = new AMutablePoint3D(x, y, z);
+        }
+
+        public void setValue(double x, double y, double z) {
+            value.setValue(x, y, z);
+        }
+
+        public double getXValue() {
+            return ((AMutablePoint3D) value).getX();
+        }
+
+        public double getYValue() {
+            return ((AMutablePoint3D) value).getY();
+        }
+
+        public double getZValue() {
+            return ((AMutablePoint3D) value).getZ();
+        }
+
+        public IAObject getValue() {
+            return value;
+        }
+
+        @Override
+        public String toString() {
+            return value.toString();
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.POINT3D;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            return value;
+        }
+    }
+
+    public static final class JOrderedList implements IJObject {
+
+        private AOrderedListType listType;
+        private List<IJObject> jObjects;
+
+        public JOrderedList(IJObject jObject) {
+            this.listType = new AOrderedListType(jObject.getIAObject().getType(), null);
+            this.jObjects = new ArrayList<IJObject>();
+        }
+
+        public void add(IJObject jObject) {
+            jObjects.add(jObject);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.ORDEREDLIST;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            AMutableOrderedList v = new AMutableOrderedList(listType);
+            for (IJObject jObj : jObjects) {
+                v.add(jObj.getIAObject());
+            }
+            return v;
+        }
+
+        public AOrderedListType getListType() {
+            return listType;
+        }
+
+        public void addAll(Collection<IJObject> jObjectCollection) {
+            jObjects.addAll(jObjectCollection);
+        }
+
+        public void clear() {
+            jObjects.clear();
+        }
+
+        public IJObject getElement(int index) {
+            return jObjects.get(index);
+        }
+
+        public int size() {
+            return jObjects.size();
+        }
+
+    }
+
+    public static final class JUnorderedList implements IJObject {
+
+        private AUnorderedListType listType;
+        private List<IJObject> jObjects;
+
+        public JUnorderedList(IJObject jObject) {
+            this.listType = new AUnorderedListType(jObject.getIAObject().getType(), null);
+            this.jObjects = new ArrayList<IJObject>();
+        }
+
+        public void add(IJObject jObject) {
+            jObjects.add(jObject);
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.UNORDEREDLIST;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            AMutableUnorderedList v = new AMutableUnorderedList(listType);
+            for (IJObject jObj : jObjects) {
+                v.add(jObj.getIAObject());
+            }
+            return v;
+        }
+
+        public AUnorderedListType getListType() {
+            return listType;
+        }
+
+        public boolean isEmpty() {
+            return jObjects.isEmpty();
+        }
+
+        public void addAll(Collection<IJObject> jObjectCollection) {
+            jObjects.addAll(jObjectCollection);
+        }
+
+        public void clear() {
+            jObjects.clear();
+        }
+
+        public IJObject getElement(int index) {
+            return jObjects.get(index);
+        }
+
+        public int size() {
+            return jObjects.size();
+        }
+
+    }
+
+    public static final class JRecord implements IJObject {
+
+        private AMutableRecord value;
+        private ARecordType recordType;
+        private List<IJObject> fields;
+        private List<String> fieldNames;
+        private List<IAType> fieldTypes;
+        private int numFieldsAdded = 0;
+        private List<Boolean> openField;
+
+        public JRecord(ARecordType recordType) {
+            this.recordType = recordType;
+            this.fields = new ArrayList<IJObject>();
+            initFieldInfo();
+        }
+
+        public JRecord(ARecordType recordType, IJObject[] fields) {
+            this.recordType = recordType;
+            this.fields = new ArrayList<IJObject>();
+            for (IJObject jObject : fields) {
+                this.fields.add(jObject);
+            }
+            initFieldInfo();
+        }
+
+        public JRecord(String[] fieldNames, IJObject[] fields) throws AsterixException {
+            this.recordType = getARecordType(fieldNames, fields);
+            this.fields = new ArrayList<IJObject>();
+            for (IJObject jObject : fields) {
+                this.fields.add(jObject);
+            }
+            initFieldInfo();
+        }
+
+        private ARecordType getARecordType(String[] fieldNames, IJObject[] fields) throws AsterixException {
+            IAType[] fieldTypes = new IAType[fields.length];
+            int index = 0;
+            for (IJObject jObj : fields) {
+                fieldTypes[index++] = jObj.getIAObject().getType();
+            }
+            ARecordType recordType = new ARecordType(null, fieldNames, fieldTypes, false);
+            return recordType;
+        }
+
+        private void initFieldInfo() {
+            this.openField = new ArrayList<Boolean>();
+            fieldNames = new ArrayList<String>();
+            for (String name : recordType.getFieldNames()) {
+                fieldNames.add(name);
+                openField.add(false);
+            }
+            fieldTypes = new ArrayList<IAType>();
+            for (IAType type : recordType.getFieldTypes()) {
+                fieldTypes.add(type);
+            }
+
+        }
+
+        private IAObject[] getIAObjectArray(List<IJObject> fields) {
+            IAObject[] retValue = new IAObject[fields.size()];
+            int index = 0;
+            for (IJObject jObject : fields) {
+                retValue[index++] = getIAObject(jObject);
+            }
+            return retValue;
+        }
+
+        private IAObject getIAObject(IJObject jObject) {
+            IAObject retVal = null;
+            switch (jObject.getTypeTag()) {
+                case RECORD:
+                    ARecordType recType = ((JRecord) jObject).getRecordType();
+                    IAObject[] fields = new IAObject[((JRecord) jObject).getFields().size()];
+                    int index = 0;
+                    for (IJObject field : ((JRecord) jObject).getFields()) {
+                        fields[index++] = getIAObject(field);
+                    }
+                    retVal = new AMutableRecord(recType, fields);
+                default:
+                    retVal = jObject.getIAObject();
+                    break;
+            }
+            return retVal;
+        }
+
+        public void addField(String fieldName, IJObject fieldValue) {
+            int pos = getFieldPosByName(fieldName);
+            if (pos >= 0) {
+                throw new IllegalArgumentException("field already defined");
+            }
+            numFieldsAdded++;
+            fields.add(fieldValue);
+            fieldNames.add(fieldName);
+            fieldTypes.add(fieldValue.getIAObject().getType());
+            openField.add(true);
+        }
+
+        public IJObject getValueByName(String fieldName) throws AsterixException, IOException {
+            int fieldPos = getFieldPosByName(fieldName);
+            if (fieldPos < 0) {
+                throw new AsterixException("unknown field: " + fieldName);
+            }
+            return fields.get(fieldPos);
+        }
+
+        public void setValueAtPos(int pos, IJObject jtype) {
+            fields.set(pos, jtype);
+        }
+
+        public void setValue(AMutableRecord mutableRecord) {
+            this.value = mutableRecord;
+            this.recordType = mutableRecord.getType();
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return recordType.getTypeTag();
+        }
+
+        public void setField(String fieldName, IJObject fieldValue) {
+            int pos = getFieldPosByName(fieldName);
+            fields.set(pos, fieldValue);
+            if (value != null) {
+                value.setValueAtPos(pos, fieldValue.getIAObject());
+            }
+        }
+
+        private int getFieldPosByName(String fieldName) {
+            int index = 0;
+            for (String name : fieldNames) {
+                if (name.equals(fieldName)) {
+                    return index;
+                }
+                index++;
+            }
+            return -1;
+        }
+
+        public ARecordType getRecordType() {
+            return recordType;
+        }
+
+        public List<IJObject> getFields() {
+            return fields;
+        }
+
+        @Override
+        public IAObject getIAObject() {
+            if (value == null || numFieldsAdded > 0) {
+                value = new AMutableRecord(recordType, getIAObjectArray(fields));
+            }
+            return value;
+        }
+
+        public void close() {
+            if (numFieldsAdded > 0) {
+                int totalFields = fieldNames.size();
+                for (int i = 0; i < numFieldsAdded; i++) {
+                    fieldNames.remove(totalFields - 1 - i);
+                    fieldTypes.remove(totalFields - 1 - i);
+                    fields.remove(totalFields - 1 - i);
+                }
+                numFieldsAdded = 0;
+            }
+        }
+
+        public List<Boolean> getOpenField() {
+            return openField;
+        }
+
+        public List<String> getFieldNames() {
+            return fieldNames;
+        }
+
+        public List<IAType> getFieldTypes() {
+            return fieldTypes;
+        }
+
+    }
+
+    public static class ByteArrayAccessibleInputStream extends ByteArrayInputStream {
+
+        public ByteArrayAccessibleInputStream(byte[] buf, int offset, int length) {
+            super(buf, offset, length);
+        }
+
+        public void setContent(byte[] buf, int offset, int length) {
+            this.buf = buf;
+            this.pos = offset;
+            this.count = Math.min(offset + length, buf.length);
+            this.mark = offset;
+        }
+
+        public byte[] getArray() {
+            return buf;
+        }
+
+        public int getPosition() {
+            return pos;
+        }
+
+        public int getCount() {
+            return count;
+        }
+
+    }
+
+    public static class ByteArrayAccessibleDataInputStream extends DataInputStream {
+
+        public ByteArrayAccessibleDataInputStream(ByteArrayAccessibleInputStream in) {
+            super(in);
+        }
+
+        public ByteArrayAccessibleInputStream getInputStream() {
+            return (ByteArrayAccessibleInputStream) in;
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JTypeTag.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JTypeTag.java
new file mode 100644
index 0000000..3b686f6
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/JTypeTag.java
@@ -0,0 +1,12 @@
+package edu.uci.ics.asterix.external.library.java;
+
+public enum JTypeTag {
+
+    INT,
+    STRING,
+    LONG,
+    DOUBLE,
+    FLOAT,
+    LIST,
+    OBJECT
+}
diff --git a/asterix-external-data/src/main/resources/feed_policy/basic.pol b/asterix-external-data/src/main/resources/feed_policy/basic.pol
new file mode 100644
index 0000000..8aed9f8
--- /dev/null
+++ b/asterix-external-data/src/main/resources/feed_policy/basic.pol
@@ -0,0 +1,8 @@
+feed.policy.name=Basic
+
+software.failure.persist.exception=false
+software.failure.continue.on.failure=false
+hardware.failure.auto.restart=false
+
+statistics.collect=false
+elastic=false
diff --git a/asterix-external-data/src/main/resources/feed_policy/basic_monitored.pol b/asterix-external-data/src/main/resources/feed_policy/basic_monitored.pol
new file mode 100644
index 0000000..efca65e
--- /dev/null
+++ b/asterix-external-data/src/main/resources/feed_policy/basic_monitored.pol
@@ -0,0 +1,11 @@
+feed.policy.name=Basic_Monitored
+
+software.failure.persist.exception=true
+software.failure.continue.on.failure=false
+hardware.failure.auto.restart=false
+
+statistics.collect=true
+statistics.collect.period=60
+statistics.collect.period.unit=sec
+
+elastic=false
diff --git a/asterix-external-data/src/main/resources/feed_policy/mission_critical.pol b/asterix-external-data/src/main/resources/feed_policy/mission_critical.pol
new file mode 100644
index 0000000..0a1da08
--- /dev/null
+++ b/asterix-external-data/src/main/resources/feed_policy/mission_critical.pol
@@ -0,0 +1,17 @@
+feed.policy.name=Mission_Critical
+
+software.failure.persist.exception=true
+software.failure.continue.on.failure=true
+hardware.failure.auto.restart=true
+
+statistics.collect=true
+statistics.collect.period=60
+statistics.collect.period.unit=sec
+
+elastic=true
+criterion.ingestion.rate.percent=true
+criterion.ingestion.rate.percent.delta=50
+
+criterion.ingestion.rate.absolute=true
+criterion.ingestion.rate.absolute.delta=2000
+criterion.ingestion.rate.absolute.unit=sec
diff --git a/asterix-external-data/src/main/resources/feed_policy/twitter.pol b/asterix-external-data/src/main/resources/feed_policy/twitter.pol
new file mode 100644
index 0000000..5fa507f
--- /dev/null
+++ b/asterix-external-data/src/main/resources/feed_policy/twitter.pol
@@ -0,0 +1,17 @@
+feed.policy.name=Twitter
+
+software.failure.persist.exception=true
+software.failure.continue.on.failure=true
+hardware.failure.auto.restart=false
+
+statistics.collect=true
+statistics.collect.period=60
+statistics.collect.period.unit=sec
+
+elastic=true
+criterion.ingestion.rate.percent=true
+criterion.ingestion.rate.percent.delta=50
+
+criterion.ingestion.rate.absolute=true
+criterion.ingestion.rate.absolute.delta=2000
+criterion.ingestion.rate.absolute.unit=sec
diff --git a/asterix-external-data/src/main/resources/schema/library.xsd b/asterix-external-data/src/main/resources/schema/library.xsd
new file mode 100644
index 0000000..3dc4659
--- /dev/null
+++ b/asterix-external-data/src/main/resources/schema/library.xsd
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:lib="library" targetNamespace="library" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="language" type="xs:string"/>
+<xs:element name="name" type="xs:string"/>
+<xs:element name="arguments" type="xs:string"/>
+<xs:element name="return_type" type="xs:string"/>
+<xs:element name="function_type" type="xs:string"/>
+<xs:element name="definition" type="xs:string"/>
+
+<!-- definition of complex elements -->
+<xs:element name="function">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="lib:name"/>
+      <xs:element ref="lib:function_type"/>
+      <xs:element ref="lib:arguments"/>
+      <xs:element ref="lib:return_type"/>
+      <xs:element ref="lib:definition"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="functions">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="lib:function" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="library">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="lib:language"/>
+      <xs:element ref="lib:functions" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFactory.java
similarity index 64%
copy from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFactory.java
index 98d72f4..f095321 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFactory.java
@@ -3,28 +3,25 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.external.library;
 
-public class ServiceProvider {
+import edu.uci.ics.asterix.external.library.IExternalFunction;
+import edu.uci.ics.asterix.external.library.IFunctionFactory;
 
-    public static ServiceProvider INSTANCE = new ServiceProvider();
-    private static ILookupService lookupService = new ZooKeeperService();
-    
-    private ServiceProvider() {
+public class AllTypesFactory implements IFunctionFactory {
 
+    @Override
+    public IExternalFunction getExternalFunction() {
+        return new AllTypesFunction();
     }
 
-    public ILookupService getLookupService() {
-        return lookupService;
-    }
- 
 }
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFunction.java
new file mode 100644
index 0000000..c5063db
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/AllTypesFunction.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionHelper;
+import edu.uci.ics.asterix.external.library.java.JObjects.JBoolean;
+import edu.uci.ics.asterix.external.library.java.JObjects.JCircle;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDate;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDateTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDouble;
+import edu.uci.ics.asterix.external.library.java.JObjects.JDuration;
+import edu.uci.ics.asterix.external.library.java.JObjects.JFloat;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInt;
+import edu.uci.ics.asterix.external.library.java.JObjects.JLine;
+import edu.uci.ics.asterix.external.library.java.JObjects.JOrderedList;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPoint3D;
+import edu.uci.ics.asterix.external.library.java.JObjects.JPolygon;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+import edu.uci.ics.asterix.external.library.java.JObjects.JTime;
+import edu.uci.ics.asterix.external.library.java.JObjects.JUnorderedList;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+
+public class AllTypesFunction implements IExternalScalarFunction {
+
+	private JOrderedList newFieldList;
+
+	@Override
+	public void initialize(IFunctionHelper functionHelper) {
+		newFieldList = new JOrderedList(functionHelper.getObject(JTypeTag.INT));
+	}
+
+	@Override
+	public void deinitialize() {
+	}
+
+	@Override
+	public void evaluate(IFunctionHelper functionHelper) throws Exception {
+		newFieldList.clear();
+		JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
+		JInt id = (JInt) inputRecord.getValueByName("id");
+		JString name = (JString) inputRecord.getValueByName("name");
+		JFloat age = (JFloat) inputRecord.getValueByName("age");
+		JDouble salary = (JDouble) inputRecord.getValueByName("salary");
+		JBoolean married = (JBoolean) inputRecord.getValueByName("married");
+		JUnorderedList interest = (JUnorderedList) inputRecord
+				.getValueByName("interests");
+		JOrderedList children = (JOrderedList) inputRecord
+				.getValueByName("children");
+		JRecord address = (JRecord) inputRecord.getValueByName("address");
+		JDate dob = (JDate) inputRecord.getValueByName("dob");
+		JTime time = (JTime) inputRecord.getValueByName("time");
+		JDateTime dateTime = (JDateTime) inputRecord.getValueByName("datetime");
+		JDuration duration = (JDuration) inputRecord.getValueByName("duration");
+		JPoint location2d = (JPoint) inputRecord.getValueByName("location2d");
+		JPoint3D location3d = (JPoint3D) inputRecord
+				.getValueByName("location3d");
+		JLine line = (JLine) inputRecord.getValueByName("line");
+		JPolygon polygon = (JPolygon) inputRecord.getValueByName("polygon");
+		JCircle circle = (JCircle) inputRecord.getValueByName("circle");
+
+		JRecord result = (JRecord) functionHelper.getResultObject();
+		result.setField("id", id);
+		result.setField("name", name);
+		result.setField("age", age);
+		result.setField("salary", salary);
+		result.setField("married", married);
+		result.setField("interests", interest);
+		result.setField("children", children);
+		JInt zipCode = (JInt) functionHelper.getObject(JTypeTag.INT);
+		zipCode.setValue(92841);
+		address.addField("Zipcode", zipCode);
+		result.setField("address", address);
+		result.setField("dob", dob);
+		result.setField("time", time);
+		result.setField("datetime", dateTime);
+		result.setField("duration", duration);
+		result.setField("location2d", location2d);
+		result.setField("location3d", location3d);
+		result.setField("line", line);
+		result.setField("polygon", polygon);
+		result.setField("circle", circle);
+
+		JString newFieldString = (JString) functionHelper
+				.getObject(JTypeTag.STRING);
+		newFieldString.setValue("processed");
+		result.addField("status", newFieldString);
+
+		/*
+		 * JString element = (JString)
+		 * functionHelper.getObject(JTypeTag.STRING); element.setValue("raman");
+		 * newFieldList.add(element); result.addField("mylist", newFieldList);
+		 */
+
+		JString newFieldString2 = (JString) functionHelper
+				.getObject(JTypeTag.STRING);
+		newFieldString2.setValue("this is working");
+		result.addField("working", newFieldString);
+		functionHelper.setResult(result);
+	}
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFactory.java
similarity index 63%
copy from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFactory.java
index 98d72f4..872b542 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFactory.java
@@ -3,28 +3,25 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.external.library;
 
-public class ServiceProvider {
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionFactory;
 
-    public static ServiceProvider INSTANCE = new ServiceProvider();
-    private static ILookupService lookupService = new ZooKeeperService();
-    
-    private ServiceProvider() {
+public class CapitalFinderFactory implements IFunctionFactory {
 
+    @Override
+    public IExternalScalarFunction getExternalFunction() {
+        return new CapitalFinderFunction();
     }
 
-    public ILookupService getLookupService() {
-        return lookupService;
-    }
- 
 }
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFunction.java
new file mode 100644
index 0000000..7953b62
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/CapitalFinderFunction.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.io.InputStream;
+import java.util.Properties;
+
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+
+public class CapitalFinderFunction implements IExternalScalarFunction {
+
+    private static Properties capitalList;
+    private static final String NOT_FOUND = "NOT_FOUND";
+    private JString capital;
+
+    @Override
+    public void deinitialize() {
+        System.out.println(" De Initialized");
+    }
+
+    @Override
+    public void evaluate(IFunctionHelper functionHelper) throws Exception {
+        JString country = ((JString) functionHelper.getArgument(0));
+        JRecord record = (JRecord) functionHelper.getResultObject();
+        //     ((JString) record.getValueByName("country")).setValue(country.getValue());
+        String capitalCity = capitalList.getProperty(country.getValue(), NOT_FOUND);
+        //      ((JString) record.getValueByName("capital")).setValue(capitalCity);
+        capital.setValue(capitalCity);
+
+        record.setField("country", country);
+        record.setField("capital", capital);
+        functionHelper.setResult(record);
+    }
+
+    @Override
+    public void initialize(IFunctionHelper functionHelper) throws Exception {
+        InputStream in = CapitalFinderFunction.class.getClassLoader().getResourceAsStream("data/countriesCapitals.txt");
+        capitalList = new Properties();
+        capitalList.load(in);
+        capital = (JString) functionHelper.getObject(JTypeTag.STRING);
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFactory.java
similarity index 72%
copy from asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFactory.java
index af46e63..d15d661 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFactory.java
@@ -3,21 +3,23 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.event.xml;
+package edu.uci.ics.asterix.external.library;
 
-public class PatternParser {
 
-	public static void parsePattern(String path){
-		
-	}
+public class EchoDelayFactory implements IFunctionFactory {
+
+    @Override
+    public IExternalScalarFunction getExternalFunction() {
+        return new EchoDelayFunction();
+    }
+
 }
-
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFunction.java
new file mode 100644
index 0000000..5f9be77
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/EchoDelayFunction.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.util.Random;
+
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+
+public class EchoDelayFunction implements IExternalScalarFunction {
+
+    private Random rand = new Random();
+    private long sleepIntervalMin;
+    private long sleepIntervalMax;
+    private int range;
+
+    @Override
+    public void initialize(IFunctionHelper functionHelper) {
+        sleepIntervalMin = 50;
+        sleepIntervalMax = 100;
+        range = (new Long(sleepIntervalMax - sleepIntervalMin)).intValue();
+    }
+
+    @Override
+    public void deinitialize() {
+    }
+
+    @Override
+    public void evaluate(IFunctionHelper functionHelper) throws Exception {
+        JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
+        long sleepInterval = rand.nextInt(range);
+     //   Thread.sleep(5);
+        functionHelper.setResult(inputRecord);
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFactory.java
similarity index 63%
copy from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFactory.java
index 98d72f4..d868f20 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFactory.java
@@ -3,28 +3,25 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.external.library;
 
-public class ServiceProvider {
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionFactory;
 
-    public static ServiceProvider INSTANCE = new ServiceProvider();
-    private static ILookupService lookupService = new ZooKeeperService();
-    
-    private ServiceProvider() {
+public class ParseTweetFactory implements IFunctionFactory {
 
+    @Override
+    public IExternalScalarFunction getExternalFunction() {
+        return new ParseTweetFunction();
     }
 
-    public ILookupService getLookupService() {
-        return lookupService;
-    }
- 
 }
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFunction.java
new file mode 100644
index 0000000..de13e59
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/ParseTweetFunction.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import edu.uci.ics.asterix.external.library.java.JObjects.JOrderedList;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+
+public class ParseTweetFunction implements IExternalScalarFunction {
+
+    private JOrderedList list = null;
+
+    @Override
+    public void initialize(IFunctionHelper functionHelper) {
+        list = new JOrderedList(functionHelper.getObject(JTypeTag.STRING));
+    }
+
+    @Override
+    public void deinitialize() {
+    }
+
+    @Override
+    public void evaluate(IFunctionHelper functionHelper) throws Exception {
+        list.clear();
+        JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
+        JString id = (JString) inputRecord.getValueByName("id");
+        JString text = (JString) inputRecord.getValueByName("text");
+
+        String[] tokens = text.getValue().split(" ");
+        for (String tk : tokens) {
+            if (tk.startsWith("#")) {
+                JString newField = (JString) functionHelper.getObject(JTypeTag.STRING);
+                newField.setValue(tk);
+                list.add(newField);
+            }
+        }
+        JRecord result = (JRecord) functionHelper.getResultObject();
+        result.setField("id", id);
+        result.setField("username", inputRecord.getValueByName("username"));
+        result.setField("location", inputRecord.getValueByName("location"));
+        result.setField("text", text);
+        result.setField("timestamp", inputRecord.getValueByName("timestamp"));
+        result.setField("topics", list);
+        functionHelper.setResult(result);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFactory.java
similarity index 64%
copy from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFactory.java
index dcef2c8..eabc6b5 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFactory.java
@@ -3,26 +3,25 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.external.library;
+        
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionFactory;
 
-import java.io.Serializable;
+public class SumFactory implements IFunctionFactory {
 
-public interface IFeedMessage extends Serializable {
-
-    public enum MessageType {
-        STOP,
-        ALTER,
-    }
-
-    public MessageType getMessageType();
+	@Override
+	public IExternalScalarFunction getExternalFunction() {
+		return new SumFunction();
+	}
 
 }
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFunction.java
new file mode 100644
index 0000000..0a4eca6
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/SumFunction.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionHelper;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInt;
+
+public class SumFunction implements IExternalScalarFunction {
+
+    private JInt result;
+
+    @Override
+    public void deinitialize() {
+        System.out.println(" De Initialized");
+    }
+
+    @Override
+    public void evaluate(IFunctionHelper functionHelper) throws Exception {
+        int arg0 = ((JInt) functionHelper.getArgument(0)).getValue();
+        int arg1 = ((JInt) functionHelper.getArgument(1)).getValue();
+        result.setValue(arg0 + arg1);
+        functionHelper.setResult(result);
+    }
+
+    @Override
+    public void initialize(IFunctionHelper functionHelper) {
+        result = (JInt) functionHelper.getResultObject();
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFactory.java
similarity index 64%
copy from asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
copy to asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFactory.java
index 98d72f4..2c5f607 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFactory.java
@@ -3,28 +3,25 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.installer.service;
+package edu.uci.ics.asterix.external.library;
 
-public class ServiceProvider {
+import edu.uci.ics.asterix.external.library.IExternalFunction;
+import edu.uci.ics.asterix.external.library.IFunctionFactory;
 
-    public static ServiceProvider INSTANCE = new ServiceProvider();
-    private static ILookupService lookupService = new ZooKeeperService();
-    
-    private ServiceProvider() {
+public class UpperCaseFactory implements IFunctionFactory {
 
+    @Override
+    public IExternalFunction getExternalFunction() {
+        return new UpperCaseFunction();
     }
 
-    public ILookupService getLookupService() {
-        return lookupService;
-    }
- 
 }
diff --git a/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFunction.java b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFunction.java
new file mode 100644
index 0000000..e3d1c9c
--- /dev/null
+++ b/asterix-external-data/src/test/java/edu/uci/ics/asterix/external/library/UpperCaseFunction.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.library;
+
+import java.util.Random;
+
+import edu.uci.ics.asterix.external.library.IExternalScalarFunction;
+import edu.uci.ics.asterix.external.library.IFunctionHelper;
+import edu.uci.ics.asterix.external.library.java.JTypeTag;
+import edu.uci.ics.asterix.external.library.java.JObjects.JInt;
+import edu.uci.ics.asterix.external.library.java.JObjects.JRecord;
+import edu.uci.ics.asterix.external.library.java.JObjects.JString;
+
+/**
+ * Accepts an input record of type Open{ id: int32, text: string }
+ * 
+ * Converts the text field into upper case and appends an additional field -
+ * "substring" with value as a random substring of the text field.
+ * 
+ * Return Type Open{ id: int32, text: string }
+ * 
+ */
+public class UpperCaseFunction implements IExternalScalarFunction {
+
+	private Random random;
+
+	@Override
+	public void initialize(IFunctionHelper functionHelper) {
+		random = new Random();
+	}
+
+	@Override
+	public void deinitialize() {
+	}
+
+	@Override
+	public void evaluate(IFunctionHelper functionHelper) throws Exception {
+		JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
+		JInt id = (JInt) inputRecord.getValueByName("id");
+		id.setValue(id.getValue() * -1); // for maintaining uniqueness
+											// constraint in the case when
+											// output is re-inserted into source
+											// dataset
+		JString text = (JString) inputRecord.getValueByName("text");
+		text.setValue(text.getValue().toUpperCase());
+		JRecord result = (JRecord) functionHelper.getResultObject();
+		result.setField("id", id);
+		result.setField("text", text);
+		JString newField = (JString) functionHelper.getObject(JTypeTag.STRING);
+		newField.setValue(text.getValue().substring(
+				random.nextInt(text.getValue().length())));
+		result.addField("substring", newField);
+		functionHelper.setResult(result);
+	}
+}
diff --git a/asterix-external-data/src/test/resources/data/countriesCapitals.txt b/asterix-external-data/src/test/resources/data/countriesCapitals.txt
new file mode 100644
index 0000000..def17ed
--- /dev/null
+++ b/asterix-external-data/src/test/resources/data/countriesCapitals.txt
@@ -0,0 +1,189 @@
+United\ Arab\ Emirates=Abu Dhabi
+Nigeria=Abuja
+Ghana=Accra
+Ethiopia=Addis Ababa
+Algeria=Algiers
+Niue=Alofi
+Jordan=Amman
+Netherlands=Amsterdam 
+Andorra=Andorra la Vella
+Turkey=Ankara
+Madagascar=Antananarivo
+Samoa=Apia
+Turkmenistan=Ashgabat
+Eritrea=Asmara
+Kazakhstan=Astana
+Paraguay=Asunción
+Greece=Athens
+Iraq=Baghdad
+Azerbaijan=Baku
+Mali=Bamako
+Brunei=Bandar Seri Begawan
+Thailand=Bangkok
+Gambia=Banjul
+China=Beijing
+Lebanon=Beirut
+Serbia=Belgrade
+Belize=Belmopan
+Germany=Berlin
+Switzerland=Bern
+Kyrgyzstan=Bishkek
+Guinea-Bissau=Bissau
+Colombia=Bogotá
+Brazil=Brasília
+Slovakia=Bratislava
+Barbados=Bridgetown
+Belgium=Brussels
+Romania=Bucharest
+Hungary=Budapest
+Argentina=Buenos Aires
+Burundi=Bujumbura
+Egypt=Cairo
+Australia=Canberra
+Venezuela=Caracas
+Wales=Cardiff
+Moldova=Chisinau
+Guinea=Conakry
+Denmark=Copenhagen
+Senegal=Dakar
+Syria=Damascus
+Bangladesh=Dhaka
+Djibouti=Djibouti
+Qatar=Doha
+Ireland=Dublin
+Tajikistan=Dushanbe
+Scotland=Edinburgh
+Botswana=Gaborone
+Guyana=Georgetown
+Gibraltar=Gibraltar
+Guatemala=Guatemala City
+Guam=Hagåtña
+Bermuda=Hamilton
+Vietnam=Hanoi
+Zimbabwe=Harare
+Cuba=Havana
+Finland=Helsinki
+Pakistan=Islamabad
+Indonesia=Jakarta
+Afghanistan=Kabul
+Uganda=Kampala
+Nepal=Kathmandu
+Sudan=Khartoum
+Ukraine=Kiev
+Rwanda=Kigali
+Jamaica=Kingston
+Malaysia=Kuala Lumpur
+Kuwait=Kuwait City
+Gabon=Libreville
+Malawi=Lilongwe
+Peru=Lima
+Portugal=Lisbon
+Slovenia=Ljubljana
+Togo=Lome
+England=London
+Angola=Luanda
+Zambia=Lusaka
+Luxembourg=Luxembourg
+Spain=Madrid
+Marshall Islands=Majuro
+Equatorial Guinea=Malabo
+Maldives=Malé
+Nicaragua=Managua
+Bahrain=Manama
+Philippines=Manila
+Mozambique=Maputo
+Saint Martin=Marigot
+Lesotho=Maseru
+Wallis and Futuna=Mata-Utu
+Palau=Melekeok
+Mexico=Mexico City
+Belarus=Minsk
+Somalia=Mogadishu
+Monaco=Monaco
+Liberia=Monrovia
+Uruguay=Montevideo
+Comoros=Moroni
+Russia=Moscow
+Oman=Muscat
+Kenya=Nairobi
+Bahamas=Nassau
+Myanmar=Naypyidaw
+Chad=NDjamena
+India=New Delhi
+Niger=Niamey
+Cyprus=Nicosia
+Mauritania=Nouakchott
+Greenland=Nuuk
+Aruba=Oranjestad
+Norway=Oslo
+Canada=Ottawa
+Panama=Panama City
+Suriname=Paramaribo
+France=Paris
+Cambodia=Phnom Penh
+Montserrat=Brades Estate (de facto)
+Montenegro=Podgorica
+Mauritius=Port Louis
+Vanuatu=Port Vila
+Haiti=Port-au-Prince
+Benin=Cotonou (de facto)
+Czech Republic=Prague
+Cape Verde=Praia
+South\ Africa=Cape Town
+North\ Korea=Pyongyang
+Ecuador=Quito
+Morocco=Rabat
+Iceland=Reykjavík
+Latvia=Riga
+Saudi\ Arabia=Riyadh
+Italy=Rome
+Dominica=Roseau
+Costa\ Rica=San José
+Puerto\ Rico=San Juan
+San\ Marino=San Marino
+El\ Salvador=San Salvador
+Yemen=Sanaa
+Chile=Santiago
+Dominican\ Republic=Santo Domingo
+Bosnia\ and\ Herzegovina=Sarajevo
+South\ Korea=Seoul
+Singapore=Singapore
+Macedonia=Skopje
+Bulgaria=Sofia
+Sri\ Lanka=Colombo
+Grenada=St. George's
+Jersey=St. Helier
+Guernsey=St. Peter Port
+Sweden=Stockholm
+Bolivia=La Paz
+Abkhazia=Sukhumi
+Fiji=Suva
+Taiwan=Taipei
+Estonia=Tallinn
+Kiribati=Tarawa
+Uzbekistan=Tashkent
+Georgia=Tbilisi
+Honduras=Tegucigalpa
+Iran=Tehran
+Bhutan=Thimphu
+Albania=Tirana
+Transnistria=Tiraspol
+Japan=Tokyo
+Libya=Tripoli
+Tunisia=Tunis
+Mongolia=Ulan Bator
+Liechtenstein=Vaduz
+Malta=Valletta
+Anguilla=The Valley
+Vatican\ City=Vatican City
+Seychelles=Victoria
+Austria=Vienna
+Laos=Vientiane
+Lithuania=Vilnius
+Poland=Warsaw
+United\ States=Washington D.C.
+New\ Zealand=Wellington
+Namibia=Windhoek
+Nauru=Yaren (de facto)
+Armenia=Yerevan
+Croatia=Zagreb
diff --git a/asterix-external-data/src/test/resources/text_functions.xml b/asterix-external-data/src/test/resources/text_functions.xml
new file mode 100644
index 0000000..6d00029
--- /dev/null
+++ b/asterix-external-data/src/test/resources/text_functions.xml
@@ -0,0 +1,53 @@
+<library xmlns="library">
+	<language>JAVA</language>
+	<functions>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>parseTweet</name>
+			<arguments>TweetType</arguments>
+			<return_type>TweetType</return_type>
+			<definition>edu.uci.ics.asterix.external.library.ParseTweetFactory
+			</definition>
+		</function>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>mysum</name>
+			<arguments>AINT32,AINT32</arguments>
+			<return_type>AINT32</return_type>
+			<definition>edu.uci.ics.asterix.external.library.SumFactory
+			</definition>
+		</function>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>getCapital</name>
+			<arguments>ASTRING</arguments>
+			<return_type>CountryCapitalType</return_type>
+			<definition>edu.uci.ics.asterix.external.library.CapitalFinderFactory
+			</definition>
+		</function>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>toUpper</name>
+			<arguments>TextType</arguments>
+			<return_type>TextType</return_type>
+			<definition>edu.uci.ics.asterix.external.library.UpperCaseFactory
+			</definition>
+		</function>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>allTypes</name>
+			<arguments>AllType</arguments>
+			<return_type>AllType</return_type>
+			<definition>edu.uci.ics.asterix.external.library.AllTypesFactory
+			</definition>
+		</function>
+		<function>
+			<function_type>SCALAR</function_type>
+			<name>echoDelay</name>
+			<arguments>TweetMessageType</arguments>
+			<return_type>TweetMessageType</return_type>
+			<definition>edu.uci.ics.asterix.external.library.EchoDelayFactory
+			</definition>
+		</function>
+	</functions>
+</library>
diff --git a/asterix-installer/ittest/asterix-lifecycle_backupRestore.adm b/asterix-installer/ittest/asterix-lifecycle_backupRestore.adm
deleted file mode 100644
index 4c4f073..0000000
--- a/asterix-installer/ittest/asterix-lifecycle_backupRestore.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "DataverseName": "backupDataverse", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Mon Jul 08 17:23:56 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-installer/pom.xml b/asterix-installer/pom.xml
index 242f873..ad515ec 100644
--- a/asterix-installer/pom.xml
+++ b/asterix-installer/pom.xml
@@ -1,25 +1,21 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-          <artifactId>asterix</artifactId>
-          <groupId>edu.uci.ics.asterix</groupId>
-          <version>0.8.1-SNAPSHOT</version>
-  </parent>
-  <artifactId>asterix-installer</artifactId>
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<artifactId>asterix</artifactId>
+		<groupId>edu.uci.ics.asterix</groupId>
+		<version>0.8.1-SNAPSHOT</version>
+	</parent>
+	<artifactId>asterix-installer</artifactId>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	</properties>
@@ -31,11 +27,10 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
 				</configuration>
 			</plugin>
-
 			<plugin>
 				<groupId>org.jvnet.jaxb2.maven2</groupId>
 				<artifactId>maven-jaxb2-plugin</artifactId>
@@ -76,10 +71,6 @@
 							<goal>generate</goal>
 						</goals>
 						<configuration>
-							<args>
-								<arg>-Xsetters</arg>
-								<arg>-Xvalue-constructor</arg>
-							</args>
 							<schemaDirectory>src/main/resources/schema</schemaDirectory>
 							<schemaIncludes>
 								<include>cluster.xsd</include>
@@ -174,16 +165,9 @@
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-common</artifactId>
 			<version>0.8.1-SNAPSHOT</version>
-			<type>jar</type>
-			<scope>compile</scope>
+			<type>test-jar</type>
+			<scope>test</scope>
 		</dependency>
-                <dependency>
-                        <groupId>edu.uci.ics.asterix</groupId>
-                        <artifactId>asterix-common</artifactId>
-                        <version>0.8.1-SNAPSHOT</version>
-                        <type>test-jar</type>
-                        <scope>test</scope>
-                </dependency>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-server</artifactId>
@@ -191,12 +175,11 @@
 			<type>zip</type>
 			<classifier>binary-assembly</classifier>
 		</dependency>
-                <dependency>
-                        <groupId>edu.uci.ics.asterix</groupId>
-                        <artifactId>asterix-test-framework</artifactId>
-                        <version>0.8.1-SNAPSHOT</version>
-                        <scope>test</scope>
-                </dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-test-framework</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
-
 </project>
diff --git a/asterix-installer/src/main/assembly/binary-assembly.xml b/asterix-installer/src/main/assembly/binary-assembly.xml
index d42c5ae..930f686 100644
--- a/asterix-installer/src/main/assembly/binary-assembly.xml
+++ b/asterix-installer/src/main/assembly/binary-assembly.xml
@@ -13,112 +13,108 @@
  ! limitations under the License.
  !-->
 <assembly>
-  <id>binary-assembly</id>
-  <formats>
-    <format>zip</format>
-    <format>dir</format>
-  </formats>
-  <includeBaseDirectory>false</includeBaseDirectory>
-  <fileSets>
-    <fileSet>
-      <directory>src/main/resources/conf</directory>
-      <outputDirectory>conf</outputDirectory>
-    </fileSet>
-    <fileSet>
-      <directory>src/main/resources/clusters</directory>
-      <outputDirectory>clusters</outputDirectory>
-    </fileSet>
-    <fileSet>
-      <directory>src/main/resources/zookeeper</directory>
-      <fileMode>0755</fileMode>
-      <outputDirectory>.installer/zookeeper/bin</outputDirectory>
-    </fileSet>
-    <fileSet>
-      <directory>src/main/resources/scripts</directory>
-      <fileMode>0755</fileMode>
-      <includes>
-        <include>managix</include>
-      </includes>
-      <outputDirectory>bin</outputDirectory>
-    </fileSet>
-    <fileSet>
-      <directory>src/main/resources/scripts</directory>
-      <fileMode>0755</fileMode>
-      <excludes>
-        <exclude>managix</exclude>
-      </excludes>
-      <outputDirectory>.installer/scripts</outputDirectory>
-    </fileSet>
-    <fileSet>
-      <directory>src/main/resources/hadoop-0.20.2</directory>
-      <outputDirectory>.installer/hadoop-0.20.2</outputDirectory>
-      <fileMode>0755</fileMode>
-    </fileSet>
-    <fileSet>
-      <directory>target</directory>
-      <outputDirectory>lib</outputDirectory>
-      <includes>
-        <include>*.jar</include>
-      </includes>
-    </fileSet>
-    <fileSet>
-      <directory>../asterix-events/src/main/resources/events</directory>
-      <outputDirectory>.installer/eventrix/events</outputDirectory>
-      <fileMode>0755</fileMode>
-    </fileSet>
-    <fileSet>
-      <directory>../asterix-events/src/main/resources/scripts</directory>
-      <outputDirectory>.installer/eventrix/scripts</outputDirectory>
-    </fileSet>
-  </fileSets>
-  <dependencySets>
-    <dependencySet>
-      <includes>
-         <include>log4j:log4j</include>
-         <include>edu.uci.ics.asterix:asterix-events</include>
-         <include>edu.uci.ics.asterix:asterix-common</include>
-         <include>org.apache.zookeeper:zookeeper</include>
-         <include>args4j:args4j</include>
-         <include>log4j:log4j</include>
-         <include>commons-io:commons-io</include>
-         <include>org.slf4j:slf4j-api</include>
-         <include>org.slf4j:slf4j-log4j12</include>
-       </includes>
-       <unpack>false</unpack>
-       <outputDirectory>lib</outputDirectory>
-    </dependencySet>
-    <dependencySet>
-      <includes>
-        <include>org.apache.hadoop:hadoop-core</include>
-        <include>commons-cli:commons-cli</include>
-        <include>commons-logging:commons-logging</include>
-      </includes>
-      <unpack>false</unpack>
-      <outputDirectory>.installer/hadoop-0.20.2/lib</outputDirectory>
-    </dependencySet>
-    <dependencySet>
-      <includes>
-        <include>org.apache.zookeeper:zookeeper</include>
-        <include>log4j:log4j</include>
-        <include>org.slf4j:slf4j-api</include>
-      </includes>
-      <unpack>false</unpack>
-      <outputDirectory>.installer/zookeeper/lib</outputDirectory>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>asterix</outputDirectory>
-      <includes>
-        <include>asterix-server*</include>
-      </includes>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>.installer/eventrix</outputDirectory>
-      <includes>
-        <include>asterix-events*</include>
-      </includes>
-      <unpack>false</unpack>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-  </dependencySets>
-</assembly>
+	<id>binary-assembly</id>
+	<formats>
+		<format>zip</format>
+		<format>dir</format>
+	</formats>
+	<includeBaseDirectory>false</includeBaseDirectory>
+	<fileSets>
+		<fileSet>
+			<directory>src/main/resources/conf</directory>
+			<outputDirectory>conf</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/clusters</directory>
+			<outputDirectory>clusters</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/zookeeper</directory>
+			<fileMode>0755</fileMode>
+			<outputDirectory>.installer/zookeeper/bin</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/scripts</directory>
+			<fileMode>0755</fileMode>
+			<includes>
+				<include>managix</include>
+			</includes>
+			<outputDirectory>bin</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/scripts</directory>
+			<fileMode>0755</fileMode>
+			<excludes>
+				<exclude>managix</exclude>
+			</excludes>
+			<outputDirectory>.installer/scripts</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/hadoop-0.20.2</directory>
+			<outputDirectory>.installer/hadoop-0.20.2</outputDirectory>
+			<fileMode>0755</fileMode>
+		</fileSet>
+		<fileSet>
+			<directory>target</directory>
+			<outputDirectory>lib</outputDirectory>
+			<includes>
+				<include>*.jar</include>
+			</includes>
+		</fileSet>
+		<fileSet>
+			<directory>../asterix-events/src/main/resources/events</directory>
+			<outputDirectory>.installer/events</outputDirectory>
+			<fileMode>0755</fileMode>
+		</fileSet>
+	</fileSets>
+	<dependencySets>
+		<dependencySet>
+			<includes>
+				<include>log4j:log4j</include>
+				<include>edu.uci.ics.asterix:asterix-events</include>
+				<include>edu.uci.ics.asterix:asterix-common</include>
+				<include>org.apache.zookeeper:zookeeper</include>
+				<include>args4j:args4j</include>
+				<include>log4j:log4j</include>
+				<include>commons-io:commons-io</include>
+				<include>org.slf4j:slf4j-api</include>
+				<include>org.slf4j:slf4j-log4j12</include>
+			</includes>
+			<unpack>false</unpack>
+			<outputDirectory>lib</outputDirectory>
+		</dependencySet>
+		<dependencySet>
+			<includes>
+				<include>org.apache.hadoop:hadoop-core</include>
+				<include>commons-cli:commons-cli</include>
+				<include>commons-logging:commons-logging</include>
+			</includes>
+			<unpack>false</unpack>
+			<outputDirectory>.installer/hadoop-0.20.2/lib</outputDirectory>
+		</dependencySet>
+		<dependencySet>
+			<includes>
+				<include>org.apache.zookeeper:zookeeper</include>
+				<include>log4j:log4j</include>
+				<include>org.slf4j:slf4j-api</include>
+			</includes>
+			<unpack>false</unpack>
+			<outputDirectory>.installer/zookeeper/lib</outputDirectory>
+		</dependencySet>
+		<dependencySet>
+			<outputDirectory>asterix</outputDirectory>
+			<includes>
+				<include>asterix-server*</include>
+			</includes>
+			<useTransitiveDependencies>false</useTransitiveDependencies>
+		</dependencySet>
+		<dependencySet>
+			<outputDirectory>.installer/events</outputDirectory>
+			<includes>
+				<include>asterix-events*</include>
+			</includes>
+			<unpack>false</unpack>
+			<useTransitiveDependencies>false</useTransitiveDependencies>
+		</dependencySet>
+	</dependencySets>
+ </assembly>
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
index 8e4b2bc..4be8cd5 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
@@ -19,53 +19,60 @@
 import org.kohsuke.args4j.Option;
 
 import edu.uci.ics.asterix.common.configuration.AsterixConfiguration;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
 import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.service.ILookupService;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class AlterCommand extends AbstractCommand {
 
-    @Override
-    protected void execCommand() throws Exception {
-        InstallerDriver.initConfig(true);
-        String instanceName = ((AlterConfig) config).name;
-        InstallerUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
-        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
-        AsterixInstance instance = lookupService.getAsterixInstance(instanceName);
-        InstallerUtil.createClusterProperties(instance.getCluster(), instance.getAsterixConfiguration());
-        AsterixConfiguration asterixConfiguration = InstallerUtil
-                .getAsterixConfiguration(((AlterConfig) config).confPath);
-        instance.setAsterixConfiguration(asterixConfiguration);
-        instance.setModifiedTimestamp(new Date());
-        lookupService.updateAsterixInstance(instance);
-        LOGGER.info("Altered configuration settings for Asterix instance: " + instanceName);
+	@Override
+	protected void execCommand() throws Exception {
+		InstallerDriver.initConfig(true);
+		String instanceName = ((AlterConfig) config).name;
+		AsterixEventServiceUtil.validateAsterixInstanceExists(instanceName,
+				State.INACTIVE);
+		ILookupService lookupService = ServiceProvider.INSTANCE
+				.getLookupService();
+		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(instanceName);
+		AsterixEventServiceUtil.createClusterProperties(instance.getCluster(),
+				instance.getAsterixConfiguration());
+		AsterixConfiguration asterixConfiguration = InstallerUtil
+				.getAsterixConfiguration(((AlterConfig) config).confPath);
+		instance.setAsterixConfiguration(asterixConfiguration);
+		instance.setModifiedTimestamp(new Date());
+		lookupService.updateAsterixInstance(instance);
+		LOGGER.info("Altered configuration settings for Asterix instance: "
+				+ instanceName);
 
-    }
+	}
 
-    @Override
-    protected CommandConfig getCommandConfig() {
-        return new AlterConfig();
-    }
+	@Override
+	protected CommandConfig getCommandConfig() {
+		return new AlterConfig();
+	}
 
-    @Override
-    protected String getUsageDescription() {
-        return "\nAlter the instance's configuration settings."
-                + "\nPrior to running this command, the instance is required to be INACTIVE state."
-                + "\nChanged configuration settings will be reflected when the instance is started."
-                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance.";
-    }
+	@Override
+	protected String getUsageDescription() {
+		return "\nAlter the instance's configuration settings."
+				+ "\nPrior to running this command, the instance is required to be INACTIVE state."
+				+ "\nChanged configuration settings will be reflected when the instance is started."
+				+ "\n\nAvailable arguments/options"
+				+ "\n-n name of the ASTERIX instance.";
+	}
 
 }
 
 class AlterConfig extends CommandConfig {
 
-    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
-    public String name;
+	@Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+	public String name;
 
-    @Option(name = "-a", required = true, usage = "Path to asterix instance configuration")
-    public String confPath;
+	@Option(name = "-a", required = true, usage = "Path to asterix instance configuration")
+	public String confPath;
 
 }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
index 91cbc86..3f30619 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
@@ -19,15 +19,16 @@
 
 import org.kohsuke.args4j.Option;
 
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.BackupInfo;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.BackupInfo;
 import edu.uci.ics.asterix.installer.schema.conf.Backup;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class BackupCommand extends AbstractCommand {
 
@@ -37,12 +38,12 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((BackupConfig) config).name;
-        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE);
         List<BackupInfo> backupInfo = instance.getBackupInfo();
-        PatternCreator pc = new PatternCreator();
-        Backup backupConf = InstallerDriver.getConfiguration().getBackup();
-        Patterns patterns = pc.getBackUpAsterixPattern(instance, backupConf);
-        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        Backup backupConf = AsterixEventService.getConfiguration().getBackup();
+        Patterns patterns = PatternCreator.INSTANCE.getBackUpAsterixPattern(instance, backupConf);
+        AsterixEventService.getAsterixEventServiceClient(instance.getCluster()).submit(patterns);
         int backupId = backupInfo.size();
         BackupInfo binfo = new BackupInfo(backupId, new Date(), backupConf);
         backupInfo.add(binfo);
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
index 230a945..45cc9f7 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
@@ -52,6 +52,12 @@
             case CONFIGURE:
                 cmd = new ConfigureCommand();
                 break;
+            case INSTALL:
+                cmd = new InstallCommand();
+                break;
+            case UNINSTALL:
+                cmd = new UninstallCommand();
+                break;
             case LOG:
                 cmd = new LogCommand();
                 break;
@@ -61,6 +67,17 @@
             case HELP:
                 cmd = new HelpCommand();
                 break;
+            case STOPNODE:
+                cmd = new StopNodeCommand();
+                break;
+            case STARTNODE:
+                cmd = new StartNodeCommand();
+                break;
+            case VERSION:
+                cmd = new VersionCommand();
+                break;
+            default:
+                break;
         }
         cmd.execute(args);
     }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
index 2803fee..63d2f33 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
@@ -16,20 +16,25 @@
 
 import java.io.File;
 
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
 import org.kohsuke.args4j.Option;
 
 import edu.uci.ics.asterix.common.configuration.AsterixConfiguration;
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
 import edu.uci.ics.asterix.event.management.EventUtil;
-import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
 import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class CreateCommand extends AbstractCommand {
 
@@ -46,29 +51,31 @@
             throw new Exception("Cannot create an Asterix instance.");
         }
         asterixInstanceName = ((CreateConfig) config).name;
-        InstallerUtil.validateAsterixInstanceNotExists(asterixInstanceName);
+        AsterixEventServiceUtil.validateAsterixInstanceNotExists(asterixInstanceName);
         CreateConfig createConfig = (CreateConfig) config;
         cluster = EventUtil.getCluster(createConfig.clusterPath);
+        cluster.setInstanceName(asterixInstanceName);
         asterixConfiguration = InstallerUtil.getAsterixConfiguration(createConfig.asterixConfPath);
-        AsterixInstance asterixInstance = InstallerUtil.createAsterixInstance(asterixInstanceName, cluster,
+        AsterixInstance asterixInstance = AsterixEventServiceUtil.createAsterixInstance(asterixInstanceName, cluster,
                 asterixConfiguration);
-        InstallerUtil.evaluateConflictWithOtherInstances(asterixInstance);
-        InstallerUtil.createAsterixZip(asterixInstance);
-        InstallerUtil.createClusterProperties(cluster, asterixConfiguration);
-        EventrixClient eventrixClient = InstallerUtil.getEventrixClient(cluster);
-        PatternCreator pc = new PatternCreator();
+        AsterixEventServiceUtil.evaluateConflictWithOtherInstances(asterixInstance);
+        AsterixEventServiceUtil.createAsterixZip(asterixInstance);
+        AsterixEventServiceUtil.createClusterProperties(cluster, asterixConfiguration);
+        AsterixEventServiceClient eventrixClient = AsterixEventService.getAsterixEventServiceClient(cluster, true,
+                false);
 
-        Patterns asterixBinarytrasnferPattern = pc.getAsterixBinaryTransferPattern(asterixInstanceName, cluster);
+        Patterns asterixBinarytrasnferPattern = PatternCreator.INSTANCE.getAsterixBinaryTransferPattern(
+                asterixInstanceName, cluster);
         eventrixClient.submit(asterixBinarytrasnferPattern);
 
-        Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName, cluster);
+        Patterns patterns = PatternCreator.INSTANCE.getStartAsterixPattern(asterixInstanceName, cluster);
         eventrixClient.submit(patterns);
 
         AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(asterixInstance);
         VerificationUtil.updateInstanceWithRuntimeDescription(asterixInstance, runtimeState, true);
         ServiceProvider.INSTANCE.getLookupService().writeAsterixInstance(asterixInstance);
-        InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator + InstallerDriver.ASTERIX_DIR
-                + File.separator + asterixInstanceName);
+        AsterixEventServiceUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator
+                + InstallerDriver.ASTERIX_DIR + File.separator + asterixInstanceName);
         LOGGER.info(asterixInstance.getDescription(false));
     }
 
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
index 00a3de4..3938ea5 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
@@ -16,13 +16,14 @@
 
 import org.kohsuke.args4j.Option;
 
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class DeleteCommand extends AbstractCommand {
 
@@ -30,13 +31,13 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((DeleteConfig) config).name;
-        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
-        PatternCreator pc = new PatternCreator();
-        Patterns patterns = pc.createDeleteInstancePattern(instance);
-        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE);
+        Patterns patterns = PatternCreator.INSTANCE.createDeleteInstancePattern(instance);
+        AsterixEventService.getAsterixEventServiceClient(instance.getCluster()).submit(patterns);
 
-        patterns = pc.createRemoveAsterixWorkingDirPattern(instance);
-        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        patterns = PatternCreator.INSTANCE.createRemoveAsterixWorkingDirPattern(instance);
+        AsterixEventService.getAsterixEventServiceClient(instance.getCluster()).submit(patterns);
         ServiceProvider.INSTANCE.getLookupService().removeAsterixInstance(asterixInstanceName);
         LOGGER.info("Deleted Asterix instance: " + asterixInstanceName);
     }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
index 58851cb..9010061 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
@@ -18,14 +18,14 @@
 
 import org.kohsuke.args4j.Option;
 
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
 import edu.uci.ics.asterix.installer.error.InstallerException;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class DescribeCommand extends AbstractCommand {
 
@@ -35,7 +35,7 @@
         String asterixInstanceName = ((DescribeConfig) config).name;
         boolean adminView = ((DescribeConfig) config).admin;
         if (asterixInstanceName != null) {
-            InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE, State.ACTIVE,
+            AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE, State.ACTIVE,
                     State.UNUSABLE);
             AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(
                     asterixInstanceName);
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java
index a2f00b3..68f8532 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java
@@ -55,12 +55,26 @@
             case VALIDATE:
                 helpMessage = new ValidateCommand().getUsageDescription();
                 break;
+            case INSTALL:
+                helpMessage = new InstallCommand().getUsageDescription();
+                break;
+            case UNINSTALL:
+                helpMessage = new UninstallCommand().getUsageDescription();
             case ALTER:
                 helpMessage = new AlterCommand().getUsageDescription();
                 break;
             case LOG:
                 helpMessage = new LogCommand().getUsageDescription();
                 break;
+            case STOPNODE:
+                helpMessage = new StopNodeCommand().getUsageDescription();
+                break;
+            case STARTNODE:
+                helpMessage = new StartNodeCommand().getUsageDescription();
+                break;
+            case VERSION:
+                helpMessage = new VersionCommand().getUsageDescription();
+                break;
             default:
                 helpMessage = "Unknown command " + command;
         }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
index 9e67bf5..288c882 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
@@ -27,9 +27,14 @@
         ALTER,
         VALIDATE,
         CONFIGURE,
+        INSTALL,
+        UNINSTALL,
         LOG,
         SHUTDOWN,
-        HELP
+        HELP,
+        STOPNODE,
+        STARTNODE,
+        VERSION
     }
 
     public void execute(String args[]) throws Exception;
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/InstallCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/InstallCommand.java
new file mode 100644
index 0000000..59a69bf
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/InstallCommand.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.util.PatternCreator;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+
+public class InstallCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(true);
+        InstallConfig installConfig = ((InstallConfig) config);
+        String instanceName = installConfig.name;
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
+        PatternCreator pc = PatternCreator.INSTANCE;
+        Patterns patterns = pc.getLibraryInstallPattern(instance, installConfig.dataverseName,
+                installConfig.libraryName, installConfig.libraryPath);
+        AsterixEventService.getAsterixEventServiceClient(instance.getCluster()).submit(patterns);
+        LOGGER.info("Installed library " + installConfig.libraryName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new InstallConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "Installs a library to an asterix instance." + "\n" + "Arguments/Options\n"
+                + "-n  Name of Asterix Instance\n"
+                + "-d  Name of the dataverse under which the library will be installed\n" + "-l  Name of the library\n"
+                + "-p  Path to library zip bundle";
+
+    }
+
+}
+
+class InstallConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-d", required = true, usage = "Name of the dataverse under which the library will be installed")
+    public String dataverseName;
+
+    @Option(name = "-l", required = true, usage = "Name of the library")
+    public String libraryName;
+
+    @Option(name = "-p", required = true, usage = "Path to library zip bundle")
+    public String libraryPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/LogCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/LogCommand.java
index 11b4aa7..bf30a48 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/LogCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/LogCommand.java
@@ -21,14 +21,15 @@
 import org.apache.commons.io.FileUtils;
 import org.kohsuke.args4j.Option;
 
-import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
 import edu.uci.ics.asterix.installer.error.InstallerException;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
 
 public class LogCommand extends AbstractCommand {
 
@@ -36,12 +37,15 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((LogConfig) config).name;
-        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE,
-                State.UNUSABLE, State.ACTIVE);
-        PatternCreator pc = new PatternCreator();
-        EventrixClient client = InstallerUtil.getEventrixClient(instance.getCluster());
-        String outputDir = ((LogConfig) config).outputDir == null ? InstallerDriver.getManagixHome() + File.separator + "logdump"
-                : ((LogConfig) config).outputDir;
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE, State.UNUSABLE, State.ACTIVE);
+        PatternCreator pc = PatternCreator.INSTANCE;
+
+        AsterixEventServiceClient eventrixClient = AsterixEventService.getAsterixEventServiceClient(
+                instance.getCluster(), true, false);
+
+        String outputDir = ((LogConfig) config).outputDir == null ? InstallerDriver.getManagixHome() + File.separator
+                + "logdump" : ((LogConfig) config).outputDir;
         File f = new File(outputDir);
         String outputDirPath = f.getAbsolutePath();
         if (!f.exists()) {
@@ -50,12 +54,13 @@
                 throw new InstallerException("Unable to create output directory:" + outputDirPath);
             }
         }
-        Patterns transferLogPattern = pc.getGenerateLogPattern(asterixInstanceName, instance.getCluster(), outputDirPath);
-        client.submit(transferLogPattern);
+        Patterns transferLogPattern = pc.getGenerateLogPattern(asterixInstanceName, instance.getCluster(),
+                outputDirPath);
+        eventrixClient.submit(transferLogPattern);
         File outputDirFile = new File(outputDirPath);
         final String destFileName = "log_" + new Date().toString().replace(' ', '_') + ".zip";
         File destFile = new File(outputDirFile, destFileName);
-        InstallerUtil.zipDir(outputDirFile, destFile);
+        AsterixEventServiceUtil.zipDir(outputDirFile, destFile);
 
         String[] filesToDelete = outputDirFile.list(new FilenameFilter() {
             @Override
@@ -65,7 +70,7 @@
 
         });
         for (String fileS : filesToDelete) {
-             f = new File(outputDirFile, fileS);
+            f = new File(outputDirFile, fileS);
             if (f.isDirectory()) {
                 FileUtils.deleteDirectory(f);
             } else {
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
index 6627ac2..5b76099 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
@@ -18,13 +18,14 @@
 
 import org.kohsuke.args4j.Option;
 
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.BackupInfo;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.BackupInfo;
 
 public class RestoreCommand extends AbstractCommand {
 
@@ -32,7 +33,8 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((RestoreConfig) config).name;
-        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE);
         int backupId = ((RestoreConfig) config).backupId;
         List<BackupInfo> backupInfoList = instance.getBackupInfo();
         if (backupInfoList.size() <= backupId || backupId < 0) {
@@ -40,9 +42,8 @@
         }
 
         BackupInfo backupInfo = backupInfoList.get(backupId);
-        PatternCreator pc = new PatternCreator();
-        Patterns patterns = pc.getRestoreAsterixPattern(instance, backupInfo);
-        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        Patterns patterns = PatternCreator.INSTANCE.getRestoreAsterixPattern(instance, backupInfo);
+        AsterixEventService.getAsterixEventServiceClient(instance.getCluster()).submit(patterns);
         LOGGER.info("Asterix instance: " + asterixInstanceName + " has been restored from backup");
     }
 
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java
index 0c44bd8..228cb1c 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java
@@ -14,9 +14,10 @@
  */
 package edu.uci.ics.asterix.installer.command;
 
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.service.ILookupService;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class ShutdownCommand extends AbstractCommand {
 
@@ -24,7 +25,7 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(false);
         ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
-        lookupService.stopService(InstallerDriver.getConfiguration());
+        lookupService.stopService(AsterixEventService.getConfiguration());
     }
 
     @Override
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
index 3fc7e96..63ec6fc 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
@@ -18,16 +18,17 @@
 
 import org.kohsuke.args4j.Option;
 
-import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class StartCommand extends AbstractCommand {
 
@@ -35,18 +36,18 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((StartConfig) config).name;
-        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
-        InstallerUtil.createAsterixZip(instance);
-        PatternCreator pc = new PatternCreator();
-        EventrixClient client = InstallerUtil.getEventrixClient(instance.getCluster());
-        Patterns asterixBinaryTransferPattern = pc.getAsterixBinaryTransferPattern(asterixInstanceName,
-                instance.getCluster());
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE);
+        AsterixEventServiceUtil.createAsterixZip(instance);
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(instance.getCluster());
+        Patterns asterixBinaryTransferPattern = PatternCreator.INSTANCE.getAsterixBinaryTransferPattern(
+                asterixInstanceName, instance.getCluster());
         client.submit(asterixBinaryTransferPattern);
-        InstallerUtil.createClusterProperties(instance.getCluster(), instance.getAsterixConfiguration());
-        Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName, instance.getCluster());
+        AsterixEventServiceUtil.createClusterProperties(instance.getCluster(), instance.getAsterixConfiguration());
+        Patterns patterns = PatternCreator.INSTANCE.getStartAsterixPattern(asterixInstanceName, instance.getCluster());
         client.submit(patterns);
-        InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator + InstallerDriver.ASTERIX_DIR
-                + File.separator + asterixInstanceName);
+        AsterixEventServiceUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator
+                + InstallerDriver.ASTERIX_DIR + File.separator + asterixInstanceName);
         AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(instance);
         VerificationUtil.updateInstanceWithRuntimeDescription(instance, runtimeState, true);
         LOGGER.info(instance.getDescription(false));
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartNodeCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartNodeCommand.java
new file mode 100644
index 0000000..7d0a6ee
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartNodeCommand.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.model.ProcessInfo;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+
+public class StartNodeCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(true);
+        String asterixInstanceName = ((StartNodeConfig) config).name;
+        AsterixInstance instance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.INACTIVE, State.ACTIVE, State.UNUSABLE);
+
+        Cluster cluster = instance.getCluster();
+        List<Pattern> pl = new ArrayList<Pattern>();
+        AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(instance);
+        String[] nodesToBeAdded = ((StartNodeConfig) config).nodes.split(",");
+        List<String> aliveNodes = new ArrayList<String>();
+        for (ProcessInfo p : runtimeState.getProcesses()) {
+            aliveNodes.add(p.getNodeId());
+        }
+        List<Node> clusterNodes = cluster.getNode();
+        for (String n : nodesToBeAdded) {
+            if (aliveNodes.contains(n)) {
+                throw new InstallerException("Node: " + n + " is already alive");
+            }
+            for (Node node : clusterNodes) {
+                if (n.equals(node.getId())) {
+                    String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+                    Pattern createNC = PatternCreator.INSTANCE.createNCStartPattern(cluster.getMasterNode()
+                            .getClusterIp(), node.getId(), asterixInstanceName + "_" + node.getId(), iodevices);
+                    pl.add(createNC);
+                    break;
+                }
+            }
+        }
+        Patterns patterns = new Patterns(pl);
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(cluster);
+        client.submit(patterns);
+        runtimeState = VerificationUtil.getAsterixRuntimeState(instance);
+        VerificationUtil.updateInstanceWithRuntimeDescription(instance, runtimeState, true);
+        LOGGER.info(instance.getDescription(false));
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StartNodeConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nStarts a set of nodes for an ASTERIX instance." + "\n\nAvailable arguments/options"
+                + "\n-n name of the ASTERIX instance. " + "\n-nodes"
+                + "Comma separated list of nodes that need to be started";
+    }
+}
+
+class StartNodeConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-nodes", required = true, usage = "Comma separated list of nodes that need to be started")
+    public String nodes;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
index c00fa86..820948c 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
@@ -20,16 +20,17 @@
 
 import org.kohsuke.args4j.Option;
 
-import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
 import edu.uci.ics.asterix.event.schema.pattern.Pattern;
 import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
-import edu.uci.ics.asterix.installer.events.PatternCreator;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class StopCommand extends AbstractCommand {
 
@@ -37,18 +38,19 @@
     protected void execCommand() throws Exception {
         InstallerDriver.initConfig(true);
         String asterixInstanceName = ((StopConfig) config).name;
-        AsterixInstance asterixInstance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName,
+        AsterixInstance asterixInstance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
                 State.ACTIVE, State.UNUSABLE);
-        PatternCreator pc = new PatternCreator();
-        EventrixClient client = InstallerUtil.getEventrixClient(asterixInstance.getCluster());
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(asterixInstance.getCluster());
 
         List<Pattern> ncKillPatterns = new ArrayList<Pattern>();
         for (Node node : asterixInstance.getCluster().getNode()) {
-            ncKillPatterns.add(pc.createNCStopPattern(node.getId(), asterixInstanceName + "_" + node.getId()));
+            ncKillPatterns.add(PatternCreator.INSTANCE.createNCStopPattern(node.getId(), asterixInstanceName + "_"
+                    + node.getId()));
         }
 
         List<Pattern> ccKillPatterns = new ArrayList<Pattern>();
-        ccKillPatterns.add(pc.createCCStopPattern(asterixInstance.getCluster().getMasterNode().getId()));
+        ccKillPatterns.add(PatternCreator.INSTANCE.createCCStopPattern(asterixInstance.getCluster().getMasterNode()
+                .getId()));
 
         try {
             client.submit(new Patterns(ncKillPatterns));
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopNodeCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopNodeCommand.java
new file mode 100644
index 0000000..c7cc6de
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopNodeCommand.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.model.ProcessInfo;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+
+public class StopNodeCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(true);
+        String asterixInstanceName = ((StopNodeConfig) config).name;
+        AsterixInstance asterixInstance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.ACTIVE, State.UNUSABLE);
+
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(asterixInstance
+                .getCluster());
+
+        String[] nodesToStop = ((StopNodeConfig) config).nodeList.split(",");
+        AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(asterixInstance);
+        List<String> aliveNodes = new ArrayList<String>();
+        for (ProcessInfo p : runtimeState.getProcesses()) {
+            aliveNodes.add(p.getNodeId());
+        }
+
+        List<String> validNodeIds = new ArrayList<String>();
+        for (Node node : asterixInstance.getCluster().getNode()) {
+            validNodeIds.add(node.getId());
+        }
+        List<Pattern> ncKillPatterns = new ArrayList<Pattern>();
+        for (String nodeId : nodesToStop) {
+            if (!nodeId.contains(nodeId)) {
+                throw new InstallerException("Invalid nodeId: " + nodeId);
+            }
+            if (!aliveNodes.contains(nodeId)) {
+                throw new InstallerException("Node: " + nodeId + " is not alive");
+            }
+            ncKillPatterns.add(PatternCreator.INSTANCE.createNCStopPattern(nodeId, asterixInstanceName + "_" + nodeId));
+        }
+
+        try {
+            client.submit(new Patterns(ncKillPatterns));
+        } catch (Exception e) {
+            // processes are already dead
+            LOGGER.debug("Attempt to kill non-existing processess");
+        }
+
+        asterixInstance.setStateChangeTimestamp(new Date());
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(asterixInstance);
+        LOGGER.info("Stopped nodes " + ((StopNodeConfig) config).nodeList + " serving Asterix instance: "
+                + asterixInstanceName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StopNodeConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nStops a specified set of ASTERIX nodes." + "\n\nAvailable arguments/options"
+                + "\n-n name of the ASTERIX instance. "
+                + "\n-nodes Comma separated list of nodes that need to be stopped. ";
+
+    }
+}
+
+class StopNodeConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-nodes", required = true, usage = "Comma separated list of nodes that need to be stopped")
+    public String nodeList;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/UninstallCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/UninstallCommand.java
new file mode 100644
index 0000000..39872e7
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/UninstallCommand.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+
+public class UninstallCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(true);
+        UninstallConfig uninstallConfig = ((UninstallConfig) config);
+        String instanceName = uninstallConfig.name;
+        AsterixEventServiceUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        AsterixInstance instance = lookupService.getAsterixInstance(instanceName);
+        PatternCreator pc = PatternCreator.INSTANCE;
+        Patterns patterns = pc.getLibraryUninstallPattern(instance, uninstallConfig.dataverseName,
+                uninstallConfig.libraryName);
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(instance.getCluster());
+        client.submit(patterns);
+        LOGGER.info("Uninstalled library " + uninstallConfig.libraryName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new UninstallConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "Uninstalls a library from an asterix instance." + "\n" + "Arguments/Options\n"
+                + "-n  Name of Asterix Instance\n"
+                + "-d  Name of the dataverse under which the library will be installed\n" + "-l  Name of the library\n"
+                + "-l  Name of the library";
+    }
+
+}
+
+class UninstallConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-d", required = true, usage = "Name of the dataverse under which the library will be installed")
+    public String dataverseName;
+
+    @Option(name = "-l", required = true, usage = "Name of the library")
+    public String libraryName;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java
index 5b63166..5035028 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java
@@ -29,8 +29,8 @@
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
 import edu.uci.ics.asterix.event.schema.cluster.MasterNode;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.driver.InstallerUtil;
 import edu.uci.ics.asterix.installer.schema.conf.Configuration;
 import edu.uci.ics.asterix.installer.schema.conf.Zookeeper;
 
@@ -74,17 +74,10 @@
 
     public boolean validateEnvironment() throws Exception {
         boolean valid = true;
-        String managixHome = System.getenv(InstallerDriver.ENV_MANAGIX_HOME);
-        if (managixHome == null) {
+        File home = new File(InstallerDriver.getManagixHome());
+        if (!home.exists()) {
             valid = false;
-            LOGGER.fatal(InstallerDriver.ENV_MANAGIX_HOME + " not set " + ERROR);
-        } else {
-            File home = new File(managixHome);
-            if (!home.exists()) {
-                valid = false;
-                LOGGER.fatal(InstallerDriver.ENV_MANAGIX_HOME + ": " + home.getAbsolutePath() + " does not exist!"
-                        + ERROR);
-            }
+            LOGGER.fatal(InstallerDriver.ENV_MANAGIX_HOME + ": " + home.getAbsolutePath() + " does not exist!" + ERROR);
         }
         return valid;
 
@@ -109,7 +102,7 @@
 
             MasterNode masterNode = cluster.getMasterNode();
             Node master = new Node(masterNode.getId(), masterNode.getClusterIp(), masterNode.getJavaHome(),
-                    masterNode.getLogDir(), null, null, null);
+                    masterNode.getLogDir(), null, null, null, null);
             ipAddresses.add(masterNode.getClusterIp());
 
             valid = valid & validateNodeConfiguration(master, cluster);
@@ -143,7 +136,7 @@
                 + File.separator + "scripts" + File.separator + "validate_ssh.sh";
         List<String> args = ipAddresses;
         args.add(0, username);
-        String output = InstallerUtil.executeLocalScript(script, args);
+        String output = AsterixEventServiceUtil.executeLocalScript(script, args);
         ipAddresses.remove(0);
         for (String line : output.split("\n")) {
             ipAddresses.remove(line);
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/VersionCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/VersionCommand.java
new file mode 100644
index 0000000..041839d
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/VersionCommand.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.io.File;
+
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+
+public class VersionCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(false);
+        String asterixZipName = AsterixEventService.getAsterixZip().substring(
+                AsterixEventService.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String asterixVersion = asterixZipName.substring("asterix-server-".length(),
+                asterixZipName.indexOf("-binary-assembly"));
+        LOGGER.info("Asterix/Managix version " + asterixVersion);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new VersionConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "Provides version of Managix/Asterix";
+    }
+
+}
+
+class VersionConfig extends CommandConfig {
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
index 521adc6..53ec136 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
@@ -15,52 +15,38 @@
 package edu.uci.ics.asterix.installer.driver;
 
 import java.io.File;
-import java.io.FileFilter;
 
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.Unmarshaller;
 
-import org.apache.log4j.Level;
 import org.apache.log4j.Logger;
 
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
 import edu.uci.ics.asterix.installer.command.CommandHandler;
 import edu.uci.ics.asterix.installer.schema.conf.Configuration;
-import edu.uci.ics.asterix.installer.service.ILookupService;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class InstallerDriver {
 
-    public static final String MANAGIX_INTERNAL_DIR = ".installer";
-    public static final String MANAGIX_EVENT_DIR = MANAGIX_INTERNAL_DIR + File.separator + "eventrix";
-    public static final String MANAGIX_EVENT_SCRIPTS_DIR = MANAGIX_INTERNAL_DIR + File.separator + "eventrix"
-            + File.separator + "scripts";
-    public static final String DEFAULT_ASTERIX_CONFIGURATION_PATH = "conf" + File.separator + File.separator
-            + "asterix-configuration.xml";
-    public static final String ASTERIX_DIR = "asterix";
-    public static final String EVENTS_DIR = "events";
-
     private static final Logger LOGGER = Logger.getLogger(InstallerDriver.class.getName());
+
+    public static final String MANAGIX_INTERNAL_DIR = ".installer";
     public static final String ENV_MANAGIX_HOME = "MANAGIX_HOME";
     public static final String MANAGIX_CONF_XML = "conf" + File.separator + "managix-conf.xml";
+    public static final String ASTERIX_DIR = "asterix";
 
-    private static Configuration conf;
     private static String managixHome;
-    private static String asterixZip;
-
-    public static String getAsterixZip() {
-        return asterixZip;
-    }
-
-    public static Configuration getConfiguration() {
-        return conf;
-    }
 
     public static void initConfig(boolean ensureLookupServiceIsRunning) throws Exception {
         File configFile = new File(managixHome + File.separator + MANAGIX_CONF_XML);
         JAXBContext configCtx = JAXBContext.newInstance(Configuration.class);
         Unmarshaller unmarshaller = configCtx.createUnmarshaller();
-        conf = (Configuration) unmarshaller.unmarshal(configFile);
-        asterixZip = initBinary("asterix-server");
+        Configuration conf = (Configuration) unmarshaller.unmarshal(configFile);
+        String asterixDir = managixHome + File.separator + ASTERIX_DIR;
+        String eventHome = managixHome + File.separator + MANAGIX_INTERNAL_DIR;
+        AsterixEventService.initialize(conf, asterixDir, eventHome);
 
         ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
         if (ensureLookupServiceIsRunning && !lookupService.isRunning(conf)) {
@@ -68,28 +54,6 @@
         }
     }
 
-    private static String initBinary(final String fileNamePattern) {
-        String asterixDir = InstallerDriver.getAsterixDir();
-        File file = new File(asterixDir);
-        File[] zipFiles = file.listFiles(new FileFilter() {
-            public boolean accept(File arg0) {
-                return arg0.getAbsolutePath().contains(fileNamePattern) && arg0.isFile();
-            }
-        });
-        if (zipFiles.length == 0) {
-            String msg = " Binary not found at " + asterixDir;
-            LOGGER.log(Level.FATAL, msg);
-            throw new IllegalStateException(msg);
-        }
-        if (zipFiles.length > 1) {
-            String msg = " Multiple binaries found at " + asterixDir;
-            LOGGER.log(Level.FATAL, msg);
-            throw new IllegalStateException(msg);
-        }
-
-        return zipFiles[0].getAbsolutePath();
-    }
-
     public static String getManagixHome() {
         return managixHome;
     }
@@ -98,10 +62,6 @@
         InstallerDriver.managixHome = managixHome;
     }
 
-    public static String getAsterixDir() {
-        return managixHome + File.separator + ASTERIX_DIR;
-    }
-
     public static void main(String args[]) {
         try {
             if (args.length != 0) {
@@ -134,12 +94,18 @@
         buffer.append("alter    " + ":" + " Alter the instance's configuration settings" + "\n");
         buffer.append("describe " + ":" + " Describes an existing asterix instance" + "\n");
         buffer.append("validate " + ":" + " Validates the installer/cluster configuration" + "\n");
-        buffer.append("configure" + ":" + " Configure the Asterix installer" + "\n");
+        buffer.append("configure" + ":" + " Auto-generate configuration for local psedu-distributed Asterix instance"
+                + "\n");
+        buffer.append("install  " + ":" + " Installs a library to an asterix instance" + "\n");
+        buffer.append("uninstall" + ":" + " Uninstalls a library from an asterix instance" + "\n");
         buffer.append("log      " + ":"
                 + " Produce a tar archive contianing log files from the master and worker nodes" + "\n");
         buffer.append("shutdown " + ":" + " Shutdown the installer service" + "\n");
         buffer.append("help     " + ":" + " Provides usage description of a command" + "\n");
+        buffer.append("version  " + ":" + " Provides version of Asterix/Managix" + "\n");
+
         buffer.append("\nTo get more information about a command, use managix help -cmd <command>");
         LOGGER.info(buffer.toString());
     }
+
 }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
index e62cc59..2569363 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
@@ -14,58 +14,23 @@
  */
 package edu.uci.ics.asterix.installer.driver;
 
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
 import java.io.File;
-import java.io.FileFilter;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
 import java.io.IOException;
-import java.io.InputStream;
-import java.io.StringWriter;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-import java.util.Random;
-import java.util.jar.JarEntry;
-import java.util.jar.JarFile;
-import java.util.jar.JarOutputStream;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-import java.util.zip.ZipOutputStream;
 
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
-import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 
-import org.apache.commons.io.IOUtils;
-
 import edu.uci.ics.asterix.common.configuration.AsterixConfiguration;
-import edu.uci.ics.asterix.common.configuration.Coredump;
-import edu.uci.ics.asterix.common.configuration.Store;
-import edu.uci.ics.asterix.common.configuration.TransactionLogDir;
-import edu.uci.ics.asterix.event.driver.EventDriver;
-import edu.uci.ics.asterix.event.management.EventUtil;
-import edu.uci.ics.asterix.event.management.EventrixClient;
 import edu.uci.ics.asterix.event.schema.cluster.Cluster;
-import edu.uci.ics.asterix.event.schema.cluster.Env;
 import edu.uci.ics.asterix.event.schema.cluster.Node;
-import edu.uci.ics.asterix.event.schema.cluster.Property;
-import edu.uci.ics.asterix.installer.error.InstallerException;
-import edu.uci.ics.asterix.installer.error.OutputHandler;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 
 public class InstallerUtil {
 
+    private static final String DEFAULT_ASTERIX_CONFIGURATION_PATH = "conf" + File.separator
+            + "asterix-configuration.xml";
+
     public static final String TXN_LOG_DIR = "txnLogs";
     public static final String TXN_LOG_DIR_KEY_SUFFIX = "txnLogDir";
     public static final String ASTERIX_CONFIGURATION_FILE = "asterix-configuration.xml";
@@ -75,133 +40,6 @@
     public static final int HTTP_PORT_DEFAULT = 8888;
     public static final int WEB_INTERFACE_PORT_DEFAULT = 19001;
 
-    public static AsterixInstance createAsterixInstance(String asterixInstanceName, Cluster cluster,
-            AsterixConfiguration asterixConfiguration) throws FileNotFoundException, IOException {
-        Node metadataNode = getMetadataNode(cluster);
-        String asterixZipName = InstallerDriver.getAsterixZip().substring(
-                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
-        String asterixVersion = asterixZipName.substring("asterix-server-".length(),
-                asterixZipName.indexOf("-binary-assembly"));
-        AsterixInstance instance = new AsterixInstance(asterixInstanceName, cluster, asterixConfiguration,
-                metadataNode.getId(), asterixVersion);
-        return instance;
-    }
-
-    public static void createAsterixZip(AsterixInstance asterixInstance) throws IOException, InterruptedException,
-            JAXBException, InstallerException {
-
-        String modifiedZipPath = injectAsterixPropertyFile(InstallerDriver.getAsterixZip(), asterixInstance);
-        injectAsterixLogPropertyFile(modifiedZipPath, asterixInstance);
-    }
-
-    public static void createClusterProperties(Cluster cluster, AsterixConfiguration asterixConfiguration) {
-        List<Property> clusterProperties = null;
-        if (cluster.getEnv() != null && cluster.getEnv().getProperty() != null) {
-            clusterProperties = cluster.getEnv().getProperty();
-            clusterProperties.clear();
-        } else {
-            clusterProperties = new ArrayList<Property>();
-        }
-        for (edu.uci.ics.asterix.common.configuration.Property property : asterixConfiguration.getProperty()) {
-            if (property.getName().equalsIgnoreCase(EventUtil.CC_JAVA_OPTS)) {
-                clusterProperties.add(new Property(EventUtil.CC_JAVA_OPTS, property.getValue()));
-            } else if (property.getName().equalsIgnoreCase(EventUtil.NC_JAVA_OPTS)) {
-                clusterProperties.add(new Property(EventUtil.NC_JAVA_OPTS, property.getValue()));
-            }
-        }
-        clusterProperties.add(new Property("ASTERIX_HOME", cluster.getWorkingDir().getDir() + File.separator
-                + "asterix"));
-        clusterProperties.add(new Property("LOG_DIR", cluster.getLogDir()));
-        clusterProperties.add(new Property("JAVA_HOME", cluster.getJavaHome()));
-        clusterProperties.add(new Property("WORKING_DIR", cluster.getWorkingDir().getDir()));
-        clusterProperties.add(new Property("CLIENT_NET_IP", cluster.getMasterNode().getClientIp()));
-        clusterProperties.add(new Property("CLUSTER_NET_IP", cluster.getMasterNode().getClusterIp()));
-
-        int clusterNetPort = cluster.getMasterNode().getClusterPort() != null ? cluster.getMasterNode()
-                .getClusterPort().intValue() : CLUSTER_NET_PORT_DEFAULT;
-        int clientNetPort = cluster.getMasterNode().getClientPort() != null ? cluster.getMasterNode().getClientPort()
-                .intValue() : CLIENT_NET_PORT_DEFAULT;
-        int httpPort = cluster.getMasterNode().getHttpPort() != null ? cluster.getMasterNode().getHttpPort().intValue()
-                : HTTP_PORT_DEFAULT;
-
-        clusterProperties.add(new Property("CLIENT_NET_PORT", "" + clientNetPort));
-        clusterProperties.add(new Property("CLUSTER_NET_PORT", "" + clusterNetPort));
-        clusterProperties.add(new Property("HTTP_PORT", "" + httpPort));
-
-        cluster.setEnv(new Env(clusterProperties));
-    }
-
-    private static String injectAsterixPropertyFile(String origZipFile, AsterixInstance asterixInstance)
-            throws IOException, JAXBException {
-        writeAsterixConfigurationFile(asterixInstance);
-        String asterixInstanceDir = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName();
-        unzip(origZipFile, asterixInstanceDir);
-        File sourceJar = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
-                + asterixInstance.getAsterixVersion() + ".jar");
-        File replacementFile = new File(asterixInstanceDir + File.separator + ASTERIX_CONFIGURATION_FILE);
-        replaceInJar(sourceJar, ASTERIX_CONFIGURATION_FILE, replacementFile);
-        new File(asterixInstanceDir + File.separator + ASTERIX_CONFIGURATION_FILE).delete();
-        String asterixZipName = InstallerDriver.getAsterixZip().substring(
-                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
-        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
-        return asterixInstanceDir + File.separator + asterixZipName;
-    }
-
-    private static String injectAsterixLogPropertyFile(String origZipFile, AsterixInstance asterixInstance)
-            throws IOException, InstallerException {
-        String asterixInstanceDir = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName();
-        unzip(origZipFile, asterixInstanceDir);
-        File sourceJar1 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
-                + asterixInstance.getAsterixVersion() + ".jar");
-        Properties txnLogProperties = new Properties();
-        URLClassLoader urlClassLoader = new URLClassLoader(new URL[] { sourceJar1.toURI().toURL() });
-        InputStream in = urlClassLoader.getResourceAsStream(TXN_LOG_CONFIGURATION_FILE);
-        if (in != null) {
-            txnLogProperties.load(in);
-        }
-
-        writeAsterixLogConfigurationFile(asterixInstance, txnLogProperties);
-
-        File sourceJar2 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
-                + asterixInstance.getAsterixVersion() + ".jar");
-        File replacementFile = new File(asterixInstanceDir + File.separator + "log.properties");
-        replaceInJar(sourceJar2, TXN_LOG_CONFIGURATION_FILE, replacementFile);
-
-        new File(asterixInstanceDir + File.separator + "log.properties").delete();
-        String asterixZipName = InstallerDriver.getAsterixZip().substring(
-                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
-        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
-        return asterixInstanceDir + File.separator + asterixZipName;
-    }
-
-    public static void addLibraryToAsterixZip(AsterixInstance asterixInstance, String dataverseName,
-            String libraryName, String libraryPath) throws IOException {
-        File instanceDir = new File(InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName());
-        if (!instanceDir.exists()) {
-            instanceDir.mkdirs();
-        }
-        String asterixZipName = InstallerDriver.getAsterixZip().substring(
-                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
-
-        String sourceZip = instanceDir.getAbsolutePath() + File.separator + asterixZipName;
-        unzip(sourceZip, instanceDir.getAbsolutePath());
-        File libraryPathInZip = new File(instanceDir.getAbsolutePath() + File.separator + "external" + File.separator
-                + "library" + dataverseName + File.separator + "to-add" + File.separator + libraryName);
-        libraryPathInZip.mkdirs();
-        Runtime.getRuntime().exec("cp" + " " + libraryPath + " " + libraryPathInZip.getAbsolutePath());
-        Runtime.getRuntime().exec("rm " + sourceZip);
-        String destZip = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName() + File.separator
-                + asterixZipName;
-        zipDir(instanceDir, new File(destZip));
-        Runtime.getRuntime().exec("mv" + " " + destZip + " " + sourceZip);
-    }
-
-    private static Node getMetadataNode(Cluster cluster) {
-        Random random = new Random();
-        int nNodes = cluster.getNode().size();
-        return cluster.getNode().get(random.nextInt(nNodes));
-    }
-
     public static String getNodeDirectories(String asterixInstanceName, Node node, Cluster cluster) {
         String storeDataSubDir = asterixInstanceName + File.separator + "data" + File.separator;
         String[] storeDirs = null;
@@ -224,82 +62,10 @@
         return nodeDataStore.toString();
     }
 
-    private static void writeAsterixConfigurationFile(AsterixInstance asterixInstance) throws IOException,
-            JAXBException {
-        String asterixInstanceName = asterixInstance.getName();
-        Cluster cluster = asterixInstance.getCluster();
-        String metadataNodeId = asterixInstance.getMetadataNodeId();
-
-        AsterixConfiguration configuration = asterixInstance.getAsterixConfiguration();
-        configuration.setMetadataNode(asterixInstanceName + "_" + metadataNodeId);
-
-        String storeDir = null;
-        List<Store> stores = new ArrayList<Store>();
-        for (Node node : cluster.getNode()) {
-            storeDir = node.getStore() == null ? cluster.getStore() : node.getStore();
-            stores.add(new Store(asterixInstanceName + "_" + node.getId(), storeDir));
-        }
-        configuration.setStore(stores);
-
-        List<Coredump> coredump = new ArrayList<Coredump>();
-        String coredumpDir = null;
-        List<TransactionLogDir> txnLogDirs = new ArrayList<TransactionLogDir>();
-        String txnLogDir = null;
-        for (Node node : cluster.getNode()) {
-            coredumpDir = node.getLogDir() == null ? cluster.getLogDir() : node.getLogDir();
-            coredump.add(new Coredump(asterixInstanceName + "_" + node.getId(), coredumpDir  + File.separator + asterixInstanceName +  "_"  + node.getId()));
-
-            txnLogDir = node.getTxnLogDir() == null ? cluster.getTxnLogDir() : node.getTxnLogDir();
-            txnLogDirs.add(new TransactionLogDir(asterixInstanceName + "_" + node.getId(), txnLogDir));
-        }
-        configuration.setCoredump(coredump);
-        configuration.setTransactionLogDir(txnLogDirs);
-
-        File asterixConfDir = new File(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName);
-        asterixConfDir.mkdirs();
-
-        JAXBContext ctx = JAXBContext.newInstance(AsterixConfiguration.class);
-        Marshaller marshaller = ctx.createMarshaller();
-        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
-        marshaller.marshal(configuration, new FileOutputStream(asterixConfDir + File.separator
-                + ASTERIX_CONFIGURATION_FILE));
-    }
-
-    private static void writeAsterixLogConfigurationFile(AsterixInstance asterixInstance, Properties logProperties)
-            throws IOException, InstallerException {
-        String asterixInstanceName = asterixInstance.getName();
-        Cluster cluster = asterixInstance.getCluster();
-        StringBuffer conf = new StringBuffer();
-        for (Map.Entry<Object, Object> p : logProperties.entrySet()) {
-            conf.append(p.getKey() + "=" + p.getValue() + "\n");
-        }
-
-        for (Node node : cluster.getNode()) {
-            String txnLogDir = node.getTxnLogDir() == null ? cluster.getTxnLogDir() : node.getTxnLogDir();
-            if (txnLogDir == null) {
-                throw new InstallerException("Transaction log directory (txn_log_dir) not configured for node: "
-                        + node.getId());
-            }
-            conf.append(asterixInstanceName + "_" + node.getId() + "." + TXN_LOG_DIR_KEY_SUFFIX + "=" + txnLogDir
-                    + "\n");
-        }
-        List<edu.uci.ics.asterix.common.configuration.Property> properties = asterixInstance.getAsterixConfiguration()
-                .getProperty();
-        for (edu.uci.ics.asterix.common.configuration.Property p : properties) {
-            if (p.getName().trim().toLowerCase().contains("log")) {
-                conf.append(p.getValue() + "=" + p.getValue());
-            }
-        }
-        dumpToFile(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName + File.separator
-                + "log.properties", conf.toString());
-
-    }
-
     public static AsterixConfiguration getAsterixConfiguration(String asterixConf) throws FileNotFoundException,
             IOException, JAXBException {
         if (asterixConf == null) {
-            asterixConf = InstallerDriver.getManagixHome() + File.separator
-                    + InstallerDriver.DEFAULT_ASTERIX_CONFIGURATION_PATH;
+            asterixConf = InstallerDriver.getManagixHome() + File.separator + DEFAULT_ASTERIX_CONFIGURATION_PATH;
         }
         File file = new File(asterixConf);
         JAXBContext ctx = JAXBContext.newInstance(AsterixConfiguration.class);
@@ -308,197 +74,4 @@
         return asterixConfiguration;
     }
 
-    public static void unzip(String sourceFile, String destDir) throws IOException {
-        BufferedOutputStream dest = null;
-        FileInputStream fis = new FileInputStream(sourceFile);
-        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
-        ZipEntry entry = null;
-
-        int BUFFER_SIZE = 4096;
-        while ((entry = zis.getNextEntry()) != null) {
-            String dst = destDir + File.separator + entry.getName();
-            if (entry.isDirectory()) {
-                createDir(destDir, entry);
-                continue;
-            }
-            int count;
-            byte data[] = new byte[BUFFER_SIZE];
-
-            // write the file to the disk
-            FileOutputStream fos = new FileOutputStream(dst);
-            dest = new BufferedOutputStream(fos, BUFFER_SIZE);
-            while ((count = zis.read(data, 0, BUFFER_SIZE)) != -1) {
-                dest.write(data, 0, count);
-            }
-            // close the output streams
-            dest.flush();
-            dest.close();
-        }
-
-        zis.close();
-    }
-
-    public static void zipDir(File sourceDir, File destFile) throws IOException {
-        FileOutputStream fos = new FileOutputStream(destFile);
-        ZipOutputStream zos = new ZipOutputStream(fos);
-        zipDir(sourceDir, destFile, zos);
-        zos.close();
-    }
-
-    private static void zipDir(File sourceDir, final File destFile, ZipOutputStream zos) throws IOException {
-        File[] dirList = sourceDir.listFiles(new FileFilter() {
-            public boolean accept(File f) {
-                return !f.getName().endsWith(destFile.getName());
-            }
-        });
-        for (int i = 0; i < dirList.length; i++) {
-            File f = dirList[i];
-            if (f.isDirectory()) {
-                zipDir(f, destFile, zos);
-            } else {
-                int bytesIn = 0;
-                byte[] readBuffer = new byte[2156];
-                FileInputStream fis = new FileInputStream(f);
-                ZipEntry entry = new ZipEntry(sourceDir.getName() + File.separator + f.getName());
-                zos.putNextEntry(entry);
-                while ((bytesIn = fis.read(readBuffer)) != -1) {
-                    zos.write(readBuffer, 0, bytesIn);
-                }
-                fis.close();
-            }
-        }
-    }
-
-    private static void replaceInJar(File sourceJar, String origFile, File replacementFile) throws IOException {
-        File destJar = new File(sourceJar.getAbsolutePath() + ".modified");
-        InputStream jarIs = null;
-        FileInputStream fis = new FileInputStream(replacementFile);
-        JarFile sourceJarFile = new JarFile(sourceJar);
-        Enumeration<JarEntry> entries = sourceJarFile.entries();
-        JarOutputStream jos = new JarOutputStream(new FileOutputStream(destJar));
-        byte[] buffer = new byte[2048];
-        int read;
-        while (entries.hasMoreElements()) {
-            JarEntry entry = (JarEntry) entries.nextElement();
-            String name = entry.getName();
-            if (name.equals(origFile)) {
-                continue;
-            }
-            jarIs = sourceJarFile.getInputStream(entry);
-            jos.putNextEntry(entry);
-            while ((read = jarIs.read(buffer)) != -1) {
-                jos.write(buffer, 0, read);
-            }
-        }
-        JarEntry entry = new JarEntry(origFile);
-        jos.putNextEntry(entry);
-        while ((read = fis.read(buffer)) != -1) {
-            jos.write(buffer, 0, read);
-        }
-        fis.close();
-        jos.close();
-        jarIs.close();
-        sourceJar.delete();
-        destJar.renameTo(sourceJar);
-        sourceJar.setExecutable(true);
-    }
-
-    public static void dumpToFile(String dest, String content) throws IOException {
-        FileWriter writer = new FileWriter(dest);
-        writer.write(content);
-        writer.close();
-    }
-
-    private static void createDir(String destDirectory, ZipEntry entry) {
-        String name = entry.getName();
-        int index = name.lastIndexOf(File.separator);
-        String dirSequence = name.substring(0, index);
-        File newDirs = new File(destDirectory + File.separator + dirSequence);
-        newDirs.mkdirs();
-    }
-
-    public static AsterixInstance validateAsterixInstanceExists(String name, State... permissibleStates)
-            throws Exception {
-        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
-        if (instance == null) {
-            throw new InstallerException("Asterix instance by name " + name + " does not exist.");
-        }
-        boolean valid = false;
-        for (State state : permissibleStates) {
-            if (state.equals(instance.getState())) {
-                valid = true;
-                break;
-            }
-        }
-        if (!valid) {
-            throw new InstallerException("Asterix instance by the name " + name + " is in " + instance.getState()
-                    + " state ");
-        }
-        return instance;
-    }
-
-    public static void validateAsterixInstanceNotExists(String name) throws Exception {
-        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
-        if (instance != null) {
-            throw new InstallerException("Asterix instance by name " + name + " already exists.");
-        }
-    }
-
-    public static void evaluateConflictWithOtherInstances(AsterixInstance instance) throws Exception {
-        List<AsterixInstance> existingInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
-        List<String> usedIps = new ArrayList<String>();
-        String masterIp = instance.getCluster().getMasterNode().getClusterIp();
-        for (Node node : instance.getCluster().getNode()) {
-            usedIps.add(node.getClusterIp());
-        }
-        usedIps.add(instance.getCluster().getMasterNode().getClusterIp());
-        boolean conflictFound = false;
-        AsterixInstance conflictingInstance = null;
-        for (AsterixInstance existing : existingInstances) {
-            conflictFound = existing.getCluster().getMasterNode().getClusterIp().equals(masterIp);
-            if (conflictFound) {
-                conflictingInstance = existing;
-                break;
-            }
-            for (Node n : existing.getCluster().getNode()) {
-                if (usedIps.contains(n.getClusterIp())) {
-                    conflictFound = true;
-                    conflictingInstance = existing;
-                    break;
-                }
-            }
-        }
-        if (conflictFound) {
-            throw new Exception("Cluster definition conflicts with an existing instance of Asterix: "
-                    + conflictingInstance.getName());
-        }
-    }
-
-    public static void deleteDirectory(String path) throws IOException {
-        Runtime.getRuntime().exec("rm -rf " + path);
-    }
-
-    public static String executeLocalScript(String path, List<String> args) throws Exception {
-        List<String> pargs = new ArrayList<String>();
-        pargs.add("/bin/bash");
-        pargs.add(path);
-        if (args != null) {
-            pargs.addAll(args);
-        }
-        ProcessBuilder pb = new ProcessBuilder(pargs);
-        pb.environment().putAll(EventDriver.getEnvironment());
-        pb.environment().put("IP_LOCATION", EventDriver.CLIENT_NODE.getClusterIp());
-        Process p = pb.start();
-        BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
-        StringWriter writer = new StringWriter();
-        IOUtils.copy(bis, writer, "UTF-8");
-        return writer.toString();
-    }
-
-    public static EventrixClient getEventrixClient(Cluster cluster) throws Exception {
-        return new EventrixClient(
-                InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_EVENT_DIR, cluster, false,
-                OutputHandler.INSTANCE);
-    }
-
 }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
index 313fa50..0a86196 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
@@ -20,8 +20,8 @@
 
 import edu.uci.ics.asterix.event.management.IOutputHandler;
 import edu.uci.ics.asterix.event.management.OutputAnalysis;
+import edu.uci.ics.asterix.event.model.EventList.EventType;
 import edu.uci.ics.asterix.event.schema.pattern.Event;
-import edu.uci.ics.asterix.installer.model.EventList.EventType;
 
 public class OutputHandler implements IOutputHandler {
 
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/scripts/managix b/asterix-installer/src/main/resources/scripts/managix
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/scripts/validate_ssh.sh b/asterix-installer/src/main/resources/scripts/validate_ssh.sh
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/scripts/verify.sh b/asterix-installer/src/main/resources/scripts/verify.sh
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/zookeeper/start_zk.sh b/asterix-installer/src/main/resources/zookeeper/start_zk.sh
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/zookeeper/stop_zk b/asterix-installer/src/main/resources/zookeeper/stop_zk
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/main/resources/zookeeper/zk.init b/asterix-installer/src/main/resources/zookeeper/zk.init
old mode 100755
new mode 100644
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixExternalLibraryIT.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixExternalLibraryIT.java
new file mode 100644
index 0000000..daa8bb5
--- /dev/null
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixExternalLibraryIT.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.test;
+
+import java.io.File;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.test.aql.TestsUtils;
+import edu.uci.ics.asterix.testframework.context.TestCaseContext;
+
+public class AsterixExternalLibraryIT {
+
+	private static final String LIBRARY_NAME = "testlib";
+	private static final String LIBRARY_DATAVERSE = "externallibtest";
+	private static final String PATH_BASE = "src/test/resources/integrationts/library";
+	private static final String PATH_ACTUAL = "ittest/";
+	private static final String LIBRARY_PATH = "asterix-external-data"
+			+ File.separator + "target" + File.separator
+			+ "testlib-zip-binary-assembly.zip";
+	private static final Logger LOGGER = Logger
+			.getLogger(AsterixExternalLibraryIT.class.getName());
+	private static List<TestCaseContext> testCaseCollection;
+
+	@BeforeClass
+	public static void setUp() throws Exception {
+		AsterixInstallerIntegrationUtil.init();
+		File asterixInstallerProjectDir = new File(System
+				.getProperty("user.dir"));
+		String asterixExternalLibraryPath = asterixInstallerProjectDir
+				.getParentFile().getAbsolutePath()
+				+ File.separator + LIBRARY_PATH;
+		LOGGER.info("Installing library :" + LIBRARY_NAME + " located at "
+				+ asterixExternalLibraryPath + " in dataverse "
+				+ LIBRARY_DATAVERSE);
+		AsterixInstallerIntegrationUtil.installLibrary(LIBRARY_NAME,
+				LIBRARY_DATAVERSE, asterixExternalLibraryPath);
+		AsterixInstallerIntegrationUtil
+				.transformIntoRequiredState(State.ACTIVE);
+		TestCaseContext.Builder b = new TestCaseContext.Builder();
+		testCaseCollection = b.build(new File(PATH_BASE));
+	}
+
+	@AfterClass
+	public static void tearDown() throws Exception {
+		AsterixInstallerIntegrationUtil.deinit();
+	}
+
+	@Test
+	public void test() throws Exception {
+		for (TestCaseContext testCaseCtx : testCaseCollection) {
+			TestsUtils.executeTest(PATH_ACTUAL, testCaseCtx);
+		}
+	}
+
+	public static void main(String[] args) throws Exception {
+		try {
+			setUp();
+			new AsterixExternalLibraryIT().test();
+		} catch (Exception e) {
+		    e.printStackTrace();
+			LOGGER.info("TEST CASES FAILED");
+		} finally {
+			tearDown();
+		}
+	}
+
+}
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java
new file mode 100644
index 0000000..34fa915
--- /dev/null
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.test;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runners.Parameterized.Parameters;
+
+import edu.uci.ics.asterix.test.aql.TestsUtils;
+import edu.uci.ics.asterix.testframework.context.TestCaseContext;
+
+public class AsterixFaultToleranceIT {
+
+    private static final String PATH_BASE = "src/test/resources/integrationts/fault-tolerance";
+    private static final String PATH_ACTUAL = "ittest/";
+    private static final Logger LOGGER = Logger.getLogger(AsterixFaultToleranceIT.class.getName());
+    private static List<TestCaseContext> testCaseCollection;
+
+    @BeforeClass
+    public static void setUp() throws Exception {
+        AsterixInstallerIntegrationUtil.init();
+        TestCaseContext.Builder b = new TestCaseContext.Builder();
+        testCaseCollection = b.build(new File(PATH_BASE));
+        File outdir = new File(PATH_ACTUAL);
+        outdir.mkdirs();
+    }
+
+    @AfterClass
+    public static void tearDown() throws Exception {
+        AsterixInstallerIntegrationUtil.deinit();
+        File outdir = new File(PATH_ACTUAL);
+        File[] files = outdir.listFiles();
+        if (files == null || files.length == 0) {
+            outdir.delete();
+        }
+    }
+
+    @Parameters
+    public static Collection<Object[]> tests() throws Exception {
+        Collection<Object[]> testArgs = new ArrayList<Object[]>();
+        return testArgs;
+    }
+
+    @Test
+    public void test() throws Exception {
+        for (TestCaseContext testCaseCtx : testCaseCollection) {
+            TestsUtils.executeTest(PATH_ACTUAL, testCaseCtx);
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        try {
+            setUp();
+            new AsterixFaultToleranceIT().test();
+        } catch (Exception e) {
+            e.printStackTrace();
+            LOGGER.info("TEST CASE(S) FAILED");
+        } finally {
+            tearDown();
+        }
+    }
+
+}
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
index c7beb28..1096a4d 100644
--- a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
@@ -28,191 +28,210 @@
 import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.command.CommandHandler;
-import edu.uci.ics.asterix.installer.command.ShutdownCommand;
 import edu.uci.ics.asterix.installer.driver.InstallerDriver;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
 import edu.uci.ics.asterix.installer.schema.conf.Configuration;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 
 public class AsterixInstallerIntegrationUtil {
 
-    private static String managixHome;
-    private static String clusterConfigurationPath;
-    private static final CommandHandler cmdHandler = new CommandHandler();
-    public static final String ASTERIX_INSTANCE_NAME = "asterix";
-    private static final String CC_IP_ADDRESS = "127.0.0.1";
-    private static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
-    private static final int zookeeperClientPort = 2900;
-    private static final int zookeeperTestClientPort = 3945;
+	private static String managixHome;
+	private static String clusterConfigurationPath;
+	private static final CommandHandler cmdHandler = new CommandHandler();
+	public static final String ASTERIX_INSTANCE_NAME = "asterix";
+	private static final String CC_IP_ADDRESS = "127.0.0.1";
+	private static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
+	private static final int zookeeperClientPort = 2900;
+	private static final int zookeeperTestClientPort = 3945;
 
-    private static IHyracksClientConnection hcc;
+	private static IHyracksClientConnection hcc;
 
-    private static final Logger LOGGER = Logger.getLogger(AsterixInstallerIntegrationUtil.class.getName());
+	private static final Logger LOGGER = Logger
+			.getLogger(AsterixInstallerIntegrationUtil.class.getName());
 
-    public static void deinit() throws Exception {
-        deleteInstance();
-        stopZookeeper();
-    }
+	public static void deinit() throws Exception {
+		deleteInstance();
+		stopZookeeper();
+	}
 
-    public static void init() throws Exception {
-        File asterixProjectDir = new File(System.getProperty("user.dir"));
-        File installerTargetDir = new File(asterixProjectDir, "target");
-        String managixHomeDirName = installerTargetDir.list(new FilenameFilter() {
-            @Override
-            public boolean accept(File dir, String name) {
-                return new File(dir, name).isDirectory() && name.startsWith("asterix-installer")
-                        && name.endsWith("binary-assembly");
-            }
+	public static void init() throws Exception {
+		File asterixProjectDir = new File(System.getProperty("user.dir"));
+		File installerTargetDir = new File(asterixProjectDir, "target");
+		String managixHomeDirName = installerTargetDir
+				.list(new FilenameFilter() {
+					@Override
+					public boolean accept(File dir, String name) {
+						return new File(dir, name).isDirectory()
+								&& name.startsWith("asterix-installer")
+								&& name.endsWith("binary-assembly");
+					}
 
-        })[0];
-        managixHome = new File(installerTargetDir, managixHomeDirName).getAbsolutePath();
-        System.setProperty("log4j.configuration", managixHome + File.separator + "conf" + File.separator
-                + "log4j.properties");
+				})[0];
+		managixHome = new File(installerTargetDir, managixHomeDirName)
+				.getAbsolutePath();
+		System.setProperty("log4j.configuration", managixHome + File.separator
+				+ "conf" + File.separator + "log4j.properties");
 
-        managixHome = AsterixInstallerIntegrationUtil.getManagixHome();
-        clusterConfigurationPath = managixHome + File.separator + "clusters" + File.separator + "local"
-                + File.separator + "local.xml";
+		managixHome = AsterixInstallerIntegrationUtil.getManagixHome();
+		clusterConfigurationPath = managixHome + File.separator + "clusters"
+				+ File.separator + "local" + File.separator + "local.xml";
 
-        InstallerDriver.setManagixHome(managixHome);
+		InstallerDriver.setManagixHome(managixHome);
 
-        String command = "configure";
-        cmdHandler.processCommand(command.split(" "));
-        command = "validate -c " + clusterConfigurationPath;
-        cmdHandler.processCommand(command.split(" "));
+		String command = "configure";
+		cmdHandler.processCommand(command.split(" "));
+		command = "validate -c " + clusterConfigurationPath;
+		cmdHandler.processCommand(command.split(" "));
 
-        startZookeeper();
-        InstallerDriver.initConfig(true);
-        createInstance();
-        hcc = new HyracksConnection(CC_IP_ADDRESS, DEFAULT_HYRACKS_CC_CLIENT_PORT);
-    }
+		startZookeeper();
+		Thread.sleep(2000);
+		InstallerDriver.initConfig(true);
+		createInstance();
+		hcc = new HyracksConnection(CC_IP_ADDRESS,
+				DEFAULT_HYRACKS_CC_CLIENT_PORT);
+	}
 
-    public static IHyracksClientConnection getHyracksConnection() {
-        return hcc;
-    }
+	public static IHyracksClientConnection getHyracksConnection() {
+		return hcc;
+	}
 
-    private static void startZookeeper() throws Exception {
-        initZookeeperTestConfiguration(zookeeperClientPort);
-        String script = managixHome + File.separator + "bin" + File.separator + "managix";
+	private static void startZookeeper() throws Exception {
+		initZookeeperTestConfiguration(zookeeperClientPort);
+		String script = managixHome + File.separator + "bin" + File.separator
+				+ "managix";
 
-        // shutdown zookeeper if running
-        String command = "shutdown";
-        cmdHandler.processCommand(command.split(" "));
+		// shutdown zookeeper if running
+		String command = "shutdown";
+		cmdHandler.processCommand(command.split(" "));
 
-         Thread.sleep(2000);
+		Thread.sleep(2000);
 
-        // start zookeeper 
-        initZookeeperTestConfiguration(zookeeperTestClientPort);
-        ProcessBuilder pb2 = new ProcessBuilder(script, "describe");
-        Map<String, String> env2 = pb2.environment();
-        env2.put("MANAGIX_HOME", managixHome);
-        pb2.start();
+		// start zookeeper
+		initZookeeperTestConfiguration(zookeeperTestClientPort);
+		ProcessBuilder pb2 = new ProcessBuilder(script, "describe");
+		Map<String, String> env2 = pb2.environment();
+		env2.put("MANAGIX_HOME", managixHome);
+		pb2.start();
 
-        Thread.sleep(2000);
-    }
+	}
 
-    public static void createInstance() throws Exception {
+	public static void createInstance() throws Exception {
 
-        String command = null;
-        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
-        if (instance != null) {
-            transformIntoRequiredState(State.INACTIVE);
-            command = "delete -n " + ASTERIX_INSTANCE_NAME;
-            cmdHandler.processCommand(command.split(" "));
-        }
+		String command = null;
+		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
+		if (instance != null) {
+			transformIntoRequiredState(State.INACTIVE);
+			command = "delete -n " + ASTERIX_INSTANCE_NAME;
+			cmdHandler.processCommand(command.split(" "));
+		}
 
-        command = "create -n " + ASTERIX_INSTANCE_NAME + " " + "-c" + " " + clusterConfigurationPath;
-        cmdHandler.processCommand(command.split(" "));
+		command = "create -n " + ASTERIX_INSTANCE_NAME + " " + "-c" + " "
+				+ clusterConfigurationPath;
+		cmdHandler.processCommand(command.split(" "));
 
-        instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(ASTERIX_INSTANCE_NAME);
-        AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
-        assert (state.getFailedNCs().isEmpty() && state.isCcRunning());
-    }
+		instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
+		AsterixRuntimeState state = VerificationUtil
+				.getAsterixRuntimeState(instance);
+		assert (state.getFailedNCs().isEmpty() && state.isCcRunning());
+	}
 
-    private static void initZookeeperTestConfiguration(int port) throws JAXBException, FileNotFoundException {
-        String installerConfPath = InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_CONF_XML;
-        JAXBContext ctx = JAXBContext.newInstance(Configuration.class);
-        Unmarshaller unmarshaller = ctx.createUnmarshaller();
-        Configuration configuration = (Configuration) unmarshaller.unmarshal(new File(installerConfPath));
-        configuration.getZookeeper().setClientPort(new BigInteger("" + port));
-        Marshaller marshaller = ctx.createMarshaller();
-        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
-        marshaller.marshal(configuration, new FileOutputStream(installerConfPath));
-    }
+	private static void initZookeeperTestConfiguration(int port)
+			throws JAXBException, FileNotFoundException {
+		String installerConfPath = InstallerDriver.getManagixHome()
+				+ File.separator + InstallerDriver.MANAGIX_CONF_XML;
+		JAXBContext ctx = JAXBContext.newInstance(Configuration.class);
+		Unmarshaller unmarshaller = ctx.createUnmarshaller();
+		Configuration configuration = (Configuration) unmarshaller
+				.unmarshal(new File(installerConfPath));
+		configuration.getZookeeper().setClientPort(new BigInteger("" + port));
+		Marshaller marshaller = ctx.createMarshaller();
+		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+		marshaller.marshal(configuration, new FileOutputStream(
+				installerConfPath));
+	}
 
-    public static void transformIntoRequiredState(AsterixInstance.State state) throws Exception {
-        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
-        assert (instance != null);
-        if (instance.getState().equals(state)) {
-            return;
-        }
-        if (state.equals(AsterixInstance.State.UNUSABLE)) {
-            throw new IllegalArgumentException("Invalid desired state");
-        }
+	public static void transformIntoRequiredState(AsterixInstance.State state)
+			throws Exception {
+		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
+		assert (instance != null);
+		if (instance.getState().equals(state)) {
+			return;
+		}
+		if (state.equals(AsterixInstance.State.UNUSABLE)) {
+			throw new IllegalArgumentException("Invalid desired state");
+		}
 
-        String command = null;
-        switch (instance.getState()) {
-            case ACTIVE:
-                command = "stop -n " + ASTERIX_INSTANCE_NAME;
-                break;
-            case INACTIVE:
-                command = "start -n " + ASTERIX_INSTANCE_NAME;
-                break;
-        }
-        cmdHandler.processCommand(command.split(" "));
-    }
+		String command = null;
+		switch (instance.getState()) {
+		case ACTIVE:
+			command = "stop -n " + ASTERIX_INSTANCE_NAME;
+			break;
+		case INACTIVE:
+			command = "start -n " + ASTERIX_INSTANCE_NAME;
+			break;
+		}
+		cmdHandler.processCommand(command.split(" "));
+	}
 
-    private static void stopZookeeper() throws IOException, JAXBException {
-        String script = managixHome + File.separator + "bin" + File.separator + "managix";
-        // shutdown zookeeper if running
-        ProcessBuilder pb = new ProcessBuilder(script, "shutdown");
-        Map<String, String> env = pb.environment();
-        env.put("MANAGIX_HOME", managixHome);
-        pb.start();
-    }
+	private static void stopZookeeper() throws IOException, JAXBException {
+		String script = managixHome + File.separator + "bin" + File.separator
+				+ "managix";
+		// shutdown zookeeper if running
+		ProcessBuilder pb = new ProcessBuilder(script, "shutdown");
+		Map<String, String> env = pb.environment();
+		env.put("MANAGIX_HOME", managixHome);
+		pb.start();
+	}
 
-    private static void deleteInstance() throws Exception {
-        String command = null;
-        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
+	private static void deleteInstance() throws Exception {
+		String command = null;
+		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
 
-        if (instance == null) {
-            return;
-        } else {
-            transformIntoRequiredState(State.INACTIVE);
-            command = "delete -n " + ASTERIX_INSTANCE_NAME;
-            cmdHandler.processCommand(command.split(" "));
-        }
-        instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(ASTERIX_INSTANCE_NAME);
-        assert (instance == null);
-    }
+		if (instance == null) {
+			return;
+		} else {
+			transformIntoRequiredState(State.INACTIVE);
+			command = "delete -n " + ASTERIX_INSTANCE_NAME;
+			cmdHandler.processCommand(command.split(" "));
+		}
+		instance = ServiceProvider.INSTANCE.getLookupService()
+				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
+		assert (instance == null);
+	}
 
-    public static String getManagixHome() {
-        return managixHome;
-    }
+	public static String getManagixHome() {
+		return managixHome;
+	}
 
-    public static void installLibrary(String libraryName, String libraryDataverse, String libraryPath) throws Exception {
-        transformIntoRequiredState(State.INACTIVE);
-        String command = "install -n " + ASTERIX_INSTANCE_NAME + " -d " + libraryDataverse + " -l " + libraryName
-                + " -p " + libraryPath;
-        cmdHandler.processCommand(command.split(" "));
-    }
+	public static void installLibrary(String libraryName,
+			String libraryDataverse, String libraryPath) throws Exception {
+		transformIntoRequiredState(State.INACTIVE);
+		String command = "install -n " + ASTERIX_INSTANCE_NAME + " -d "
+				+ libraryDataverse + " -l " + libraryName + " -p "
+				+ libraryPath;
+		cmdHandler.processCommand(command.split(" "));
+	}
 
-    public static void uninstallLibrary(String dataverseName, String libraryName) throws Exception {
-        transformIntoRequiredState(State.INACTIVE);
-        String command = "uninstall -n " + ASTERIX_INSTANCE_NAME + " -d " + dataverseName + " -l " + "libraryName";
-        cmdHandler.processCommand(command.split(" "));
-    }
+	public static void uninstallLibrary(String dataverseName, String libraryName)
+			throws Exception {
+		transformIntoRequiredState(State.INACTIVE);
+		String command = "uninstall -n " + ASTERIX_INSTANCE_NAME + " -d "
+				+ dataverseName + " -l " + "libraryName";
+		cmdHandler.processCommand(command.split(" "));
+	}
 
-    public static void executeCommand(String command) throws Exception {
-        cmdHandler.processCommand(command.trim().split(" "));
-    }
+	public static void executeCommand(String command) throws Exception {
+		cmdHandler.processCommand(command.trim().split(" "));
+	}
 
 }
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixLifecycleIT.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixLifecycleIT.java
index c8f6cee..421eb42 100644
--- a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixLifecycleIT.java
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixLifecycleIT.java
@@ -25,12 +25,12 @@
 import org.junit.Test;
 import org.junit.runners.Parameterized.Parameters;
 
+import edu.uci.ics.asterix.event.error.VerificationUtil;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.model.AsterixInstance.State;
+import edu.uci.ics.asterix.event.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
 import edu.uci.ics.asterix.installer.command.CommandHandler;
-import edu.uci.ics.asterix.installer.error.VerificationUtil;
-import edu.uci.ics.asterix.installer.model.AsterixInstance;
-import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
-import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
-import edu.uci.ics.asterix.installer.service.ServiceProvider;
 import edu.uci.ics.asterix.test.aql.TestsUtils;
 import edu.uci.ics.asterix.testframework.context.TestCaseContext;
 
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.1.ddl.aql
new file mode 100644
index 0000000..5d357c6
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.1.ddl.aql
@@ -0,0 +1,28 @@
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TwitterUserType as closed {
+	screen-name: string,
+	lang: string,
+	friends_count: int32,
+	statuses_count: int32,
+	name: string,
+	followers_count: int32
+} 
+
+create type TweetMessageType as closed {
+	tweetid: string,
+        user: TwitterUserType,
+        sender-location: point,
+	send-time: datetime,
+        referred-topics: {{ string }},
+	message-text: string
+}
+
+
+create feed dataset TwitterFirehoseFeed(TweetMessageType)
+using twitter_firehose
+(("duration"="30"),("tps"="50"),("dataverse-dataset"="feeds:TwitterFirehoseFeed"))
+primary key tweetid;
+
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.2.update.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.2.update.aql
new file mode 100644
index 0000000..382425f
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.2.update.aql
@@ -0,0 +1,4 @@
+use dataverse feeds;
+
+begin feed TwitterFirehoseFeed;
+
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.3.mgx.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.3.mgx.aql
new file mode 100644
index 0000000..2d8a23e
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.3.mgx.aql
@@ -0,0 +1 @@
+stop -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.4.mgx.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.4.mgx.aql
new file mode 100644
index 0000000..4e99f33
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.4.mgx.aql
@@ -0,0 +1 @@
+start -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.5.query.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.5.query.aql
new file mode 100644
index 0000000..474835a
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.5.query.aql
@@ -0,0 +1,4 @@
+use dataverse feeds;
+
+for $x in dataset Metadata.FeedActivity
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.6.query.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.6.query.aql
new file mode 100644
index 0000000..8ce6cb9
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN1-cluster-restart/in1-cluster-restart.6.query.aql
@@ -0,0 +1,4 @@
+use dataverse feeds;
+
+count(for $x in dataset TwitterFirehoseFeed
+return $x)
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.1.ddl.aql
new file mode 100644
index 0000000..b204892
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.1.ddl.aql
@@ -0,0 +1,29 @@
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TwitterUserType as closed {
+	screen-name: string,
+	lang: string,
+	friends_count: int32,
+	statuses_count: int32,
+	name: string,
+	followers_count: int32
+} 
+
+create type TweetMessageType as closed {
+	tweetid: string,
+        user: TwitterUserType,
+        sender-location: point,
+	send-time: datetime,
+        referred-topics: {{ string }},
+	message-text: string
+}
+
+create nodegroup feedGroup on asterix_node1;
+
+create feed dataset TwitterFirehoseFeed(TweetMessageType)
+using twitter_firehose
+(("duration"="30"),("tps"="50"),("dataverse-dataset"="feeds:TwitterFirehoseFeed"))
+primary key tweetid on feedGroup;
+
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.2.update.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.2.update.aql
new file mode 100644
index 0000000..382425f
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.2.update.aql
@@ -0,0 +1,4 @@
+use dataverse feeds;
+
+begin feed TwitterFirehoseFeed;
+
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.3.mgx.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.3.mgx.aql
new file mode 100644
index 0000000..2724be9
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.3.mgx.aql
@@ -0,0 +1 @@
+stopnode -n asterix -nodes node1
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.4.query.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.4.query.aql
new file mode 100644
index 0000000..474835a
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.4.query.aql
@@ -0,0 +1,4 @@
+use dataverse feeds;
+
+for $x in dataset Metadata.FeedActivity
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.5.query.aql b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.5.query.aql
new file mode 100644
index 0000000..b173136
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/queries/feeds/IN2-1/in2-1.5.query.aql
@@ -0,0 +1,14 @@
+use dataverse feeds;
+
+let $c:=count(
+for $x in dataset TwitterFirehoseFeed
+return $x
+)
+
+let $result :=
+if ($c > 20000)
+then
+  true
+else 
+ false
+return $result
diff --git a/asterix-installer/src/test/resources/integrationts/fault-tolerance/testsuite.xml b/asterix-installer/src/test/resources/integrationts/fault-tolerance/testsuite.xml
new file mode 100644
index 0000000..145c304
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/fault-tolerance/testsuite.xml
@@ -0,0 +1,15 @@
+<test-suite xmlns="urn:xml.testframework.asterix.ics.uci.edu" ResultOffsetPath="results" QueryOffsetPath="queries" QueryFileExtension=".aql">
+  <test-group name="fault-tolerance">
+    <test-case FilePath="feeds">
+      <compilation-unit name="IN2-1">
+        <output-dir compare="Text">IN2-1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
+      <compilation-unit name="IN1-cluster-restart">
+        <output-dir compare="Text">IN1-cluster-restart</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+</test-suite>
+
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.1.ddl.aql
new file mode 100644
index 0000000..edd08ce
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter.
+                  The feed simulator simulates feed from a file in the local fs.
+                  Associate with the feed an external user-defined function. The UDF 
+                  finds topics in each tweet. A topic is identified by a #. 
+                  Begin ingestion and apply external user defined function
+ * Expected Res : Success
+ * Date         : 23rd Apr 2013
+ */
+use dataverse externallibtest;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string,
+  topics : {{string}}?
+}
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("output-type-name"="TweetType"),("fs"="localfs"),("path"="nc1://../asterix-app/data/twitter/obamatweets.adm"),("format"="adm"),("tuple-interval"="10"))
+apply function testlib#parseTweet@1
+primary key id;
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.2.update.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.2.update.aql
new file mode 100644
index 0000000..b7e03ec
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter.
+                  The feed simulator simulates feed from a file in the local fs.
+                  Associate with the feed an external user-defined function. The UDF 
+                  finds topics in each tweet. A topic is identified by a #. 
+                  Begin ingestion and apply external user defined function
+ * Expected Res : Success
+ * Date         : 23rd Apr 2013
+ */
+use dataverse externallibtest;
+
+begin feed TweetFeed;
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.3.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.3.query.aql
new file mode 100644
index 0000000..fd36fbc
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-feeds/ingest_feed/feed_ingest.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter.
+                  The feed simulator simulates feed from a file in the local fs.
+                  Associate with the feed an external user-defined function. The UDF 
+                  finds topics in each tweet. A topic is identified by a #. 
+                  Begin ingestion and apply external user defined function
+ * Expected Res : Success
+ * Date         : 23rd Apr 2013
+ */
+use dataverse externallibtest;
+
+for $x in dataset TweetFeed
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.1.ddl.aql
new file mode 100644
index 0000000..e140d9a
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.1.ddl.aql
@@ -0,0 +1,6 @@
+use dataverse externallibtest;
+
+create type CountryCapitalType if not exists as closed {
+country: string,
+capital: string
+};
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.2.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.2.query.aql
new file mode 100644
index 0000000..256a3cd
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/getCapital/getCapital.2.query.aql
@@ -0,0 +1,5 @@
+use dataverse externallibtest;
+
+let $input:=["England","Italy","China","United States","India","Jupiter"]
+for $country in $input
+return testlib#getCapital($country)
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.1.ddl.aql
new file mode 100644
index 0000000..11a5ddc
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.1.ddl.aql
@@ -0,0 +1,9 @@
+use dataverse externallibtest;
+
+create type TextType if not exists as closed {
+id: int32,
+text: string
+};
+
+create dataset Check(TextType)
+primary key id;
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.2.update.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.2.update.aql
new file mode 100644
index 0000000..8a14669
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse externallibtest;
+
+insert into dataset Check (
+{"id": 1, "text":"university of california, irvine"}
+);
+
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.3.update.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.3.update.aql
new file mode 100644
index 0000000..36f3133
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.3.update.aql
@@ -0,0 +1,7 @@
+use dataverse externallibtest;
+
+insert into dataset Check (
+  for $x in dataset Check
+  let $y:=testlib#toUpper($x)
+  return $y
+);
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.4.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.4.query.aql
new file mode 100644
index 0000000..997c333
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/insert-from-select/insert-from-select.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse externallibtest;
+
+for $x in  dataset Check 
+where $x.id < 0
+order by $x.id
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/mysum/mysum.1.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/mysum/mysum.1.query.aql
new file mode 100644
index 0000000..ce255b8
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/mysum/mysum.1.query.aql
@@ -0,0 +1,4 @@
+use dataverse externallibtest;
+
+let $x:=testlib#mysum(3,4)
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.1.ddl.aql
new file mode 100644
index 0000000..67635f5
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.1.ddl.aql
@@ -0,0 +1,7 @@
+use dataverse externallibtest;
+
+create type TextType if not exists as closed {
+id: int32,
+text: string
+};
+
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.2.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.2.query.aql
new file mode 100644
index 0000000..a742203
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-functions/toUpper/toUpper.2.query.aql
@@ -0,0 +1,5 @@
+use dataverse externallibtest;
+
+let $input:={"id": 1, "text":"university of california, irvine"}
+let $x:=testlib#toUpper($input)
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/dataverseDataset/dataverseDataset.1.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/dataverseDataset/dataverseDataset.1.query.aql
new file mode 100644
index 0000000..40316d8
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/dataverseDataset/dataverseDataset.1.query.aql
@@ -0,0 +1,3 @@
+for $x in dataset Metadata.Dataverse
+order by $x.DataverseName
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/functionDataset/functionDataset.1.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/functionDataset/functionDataset.1.query.aql
new file mode 100644
index 0000000..fc47972
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/functionDataset/functionDataset.1.query.aql
@@ -0,0 +1,3 @@
+for $x in dataset Metadata.Function
+order by $x.Name
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/libraryDataset/libraryDataset.1.query.aql b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/libraryDataset/libraryDataset.1.query.aql
new file mode 100644
index 0000000..36a8a52
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/queries/library-metadata/libraryDataset/libraryDataset.1.query.aql
@@ -0,0 +1,3 @@
+for $x in dataset Metadata.Library
+order by $x.Name
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-functions/getCapital/getCapital.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/getCapital/getCapital.1.adm
new file mode 100644
index 0000000..16e9591
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/getCapital/getCapital.1.adm
@@ -0,0 +1,6 @@
+{ "country": "England", "capital": "London" }
+{ "country": "Italy", "capital": "Rome" }
+{ "country": "China", "capital": "Beijing" }
+{ "country": "United States", "capital": "Washington D.C." }
+{ "country": "India", "capital": "New Delhi" }
+{ "country": "Jupiter", "capital": "NOT_FOUND" }
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-functions/insert-from-select/insert-from-select.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/insert-from-select/insert-from-select.1.adm
new file mode 100644
index 0000000..a839cbc
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/insert-from-select/insert-from-select.1.adm
@@ -0,0 +1 @@
+{ "id": -1, "text": "UNIVERSITY OF CALIFORNIA, IRVINE" }
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-functions/mysum/mysum.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/mysum/mysum.1.adm
new file mode 100644
index 0000000..7f8f011
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/mysum/mysum.1.adm
@@ -0,0 +1 @@
+7
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-functions/toUpper/toUpper.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/toUpper/toUpper.1.adm
new file mode 100644
index 0000000..a839cbc
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-functions/toUpper/toUpper.1.adm
@@ -0,0 +1 @@
+{ "id": -1, "text": "UNIVERSITY OF CALIFORNIA, IRVINE" }
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/dataverseDataset/dataverseDataset.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/dataverseDataset/dataverseDataset.1.adm
new file mode 100644
index 0000000..330c347
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/dataverseDataset/dataverseDataset.1.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 25 11:17:56 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "externallibtest", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 25 11:18:12 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/functionDataset/functionDataset.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/functionDataset/functionDataset.1.adm
new file mode 100644
index 0000000..0878a17
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/functionDataset/functionDataset.1.adm
@@ -0,0 +1,10 @@
+{ "DataverseName": "externallibtest", "Name": "testlib#allTypes", "Arity": "1", "Params": [ "AllType" ], "ReturnType": "AllType", "Definition": "edu.uci.ics.asterix.external.library.AllTypesFactory
+			", "Language": "JAVA", "Kind": "SCALAR" }
+{ "DataverseName": "externallibtest", "Name": "testlib#getCapital", "Arity": "1", "Params": [ "ASTRING" ], "ReturnType": "CountryCapitalType", "Definition": "edu.uci.ics.asterix.external.library.CapitalFinderFactory
+			", "Language": "JAVA", "Kind": "SCALAR" }
+{ "DataverseName": "externallibtest", "Name": "testlib#mysum", "Arity": "2", "Params": [ "AINT32", "AINT32" ], "ReturnType": "AINT32", "Definition": "edu.uci.ics.asterix.external.library.SumFactory
+			", "Language": "JAVA", "Kind": "SCALAR" }
+{ "DataverseName": "externallibtest", "Name": "testlib#parseTweet", "Arity": "1", "Params": [ "TweetType" ], "ReturnType": "TweetType", "Definition": "edu.uci.ics.asterix.external.library.ParseTweetFactory
+			", "Language": "JAVA", "Kind": "SCALAR" }
+{ "DataverseName": "externallibtest", "Name": "testlib#toUpper", "Arity": "1", "Params": [ "TextType" ], "ReturnType": "TextType", "Definition": "edu.uci.ics.asterix.external.library.UpperCaseFactory
+			", "Language": "JAVA", "Kind": "SCALAR" }
diff --git a/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/libraryDataset/libraryDataset.1.adm b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/libraryDataset/libraryDataset.1.adm
new file mode 100644
index 0000000..573db0c
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/results/library-metadata/libraryDataset/libraryDataset.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "externallibtest", "Name": "testlib", "Timestamp": "Mon Apr 22 23:36:55 PDT 2013" }
diff --git a/asterix-installer/src/test/resources/integrationts/library/testsuite.xml b/asterix-installer/src/test/resources/integrationts/library/testsuite.xml
new file mode 100644
index 0000000..f97c050
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/library/testsuite.xml
@@ -0,0 +1,42 @@
+<test-suite xmlns="urn:xml.testframework.asterix.ics.uci.edu" ResultOffsetPath="results" QueryOffsetPath="queries" QueryFileExtension=".aql">
+  <test-group name="library-functions">
+    <test-case FilePath="library-functions">
+      <compilation-unit name="mysum">
+        <output-dir compare="Text">mysum</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="library-functions">
+      <compilation-unit name="toUpper">
+        <output-dir compare="Text">toUpper</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="library-functions">
+      <compilation-unit name="insert-from-select">
+        <output-dir compare="Text">insert-from-select</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="library-functions">
+      <compilation-unit name="getCapital">
+        <output-dir compare="Text">getCapital</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="library-metadata">
+    <test-case FilePath="library-metadata">
+      <compilation-unit name="functionDataset">
+        <output-dir compare="Text">functionDataset</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="library-metadata">
+      <compilation-unit name="libraryDataset">
+        <output-dir compare="Text">libraryDataset</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="library-metadata">
+      <compilation-unit name="dataverseDataset">
+        <output-dir compare="Text">dataverseDataset</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+</test-suite>
+
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.1.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.1.mgx.aql
new file mode 100644
index 0000000..2d8a23e
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.1.mgx.aql
@@ -0,0 +1 @@
+stop -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.2.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.2.mgx.aql
new file mode 100644
index 0000000..97ad91e
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.2.mgx.aql
@@ -0,0 +1 @@
+install -n asterix -d externallibtest -l testlib -p ../asterix-external-data/target/testlib-zip-binary-assembly.zip
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.3.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.3.mgx.aql
new file mode 100644
index 0000000..4e99f33
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.3.mgx.aql
@@ -0,0 +1 @@
+start -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.4.query.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.4.query.aql
new file mode 100644
index 0000000..5a46092
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/installLibrary/installLibrary.4.query.aql
@@ -0,0 +1,2 @@
+for $x in dataset Metadata.Library
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.1.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.1.mgx.aql
new file mode 100644
index 0000000..2d8a23e
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.1.mgx.aql
@@ -0,0 +1 @@
+stop -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.2.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.2.mgx.aql
new file mode 100644
index 0000000..1b5ae40
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.2.mgx.aql
@@ -0,0 +1 @@
+uninstall -n asterix -d externallibtest -l testlib 
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.3.mgx.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.3.mgx.aql
new file mode 100644
index 0000000..4e99f33
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.3.mgx.aql
@@ -0,0 +1 @@
+start -n asterix
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.4.query.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.4.query.aql
new file mode 100644
index 0000000..5a46092
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/queries/asterix-lifecycle/uninstallLibrary/uninstallLibrary.4.query.aql
@@ -0,0 +1,2 @@
+for $x in dataset Metadata.Library
+return $x
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/results/asterix-lifecycle/installLibrary/installLibrary.1.adm b/asterix-installer/src/test/resources/integrationts/lifecycle/results/asterix-lifecycle/installLibrary/installLibrary.1.adm
new file mode 100644
index 0000000..a5d5c9b
--- /dev/null
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/results/asterix-lifecycle/installLibrary/installLibrary.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "externallibtest", "Name": "testlib", "Timestamp": "Wed Apr 24 17:25:25 PDT 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.1.ddl.aql b/asterix-installer/src/test/resources/integrationts/lifecycle/results/asterix-lifecycle/uninstallLibrary/uninstallLibrary.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/queries/distinct/query-issue443-2/query-issue443-2.1.ddl.aql
copy to asterix-installer/src/test/resources/integrationts/lifecycle/results/asterix-lifecycle/uninstallLibrary/uninstallLibrary.1.adm
diff --git a/asterix-installer/src/test/resources/integrationts/lifecycle/testsuite.xml b/asterix-installer/src/test/resources/integrationts/lifecycle/testsuite.xml
index f1949ca..969da43 100644
--- a/asterix-installer/src/test/resources/integrationts/lifecycle/testsuite.xml
+++ b/asterix-installer/src/test/resources/integrationts/lifecycle/testsuite.xml
@@ -19,6 +19,16 @@
         <output-dir compare="Text">backupRestore</output-dir>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="asterix-lifecycle">
+      <compilation-unit name="installLibrary">
+        <output-dir compare="Text">installLibrary</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="asterix-lifecycle">
+      <compilation-unit name="uninstallLibrary">
+        <output-dir compare="Text">uninstallLibrary</output-dir>
+      </compilation-unit>
+    </test-case>
   </test-group>
 </test-suite>
 
diff --git a/asterix-metadata/pom.xml b/asterix-metadata/pom.xml
index 6b1e8cf..febe440 100644
--- a/asterix-metadata/pom.xml
+++ b/asterix-metadata/pom.xml
@@ -1,18 +1,14 @@
-<!--
- ! Copyright 2009-2013 by The Regents of the University of California
- ! Licensed under the Apache License, Version 2.0 (the "License");
- ! you may not use this file except in compliance with the License.
- ! you may obtain a copy of the License from
- ! 
- !     http://www.apache.org/licenses/LICENSE-2.0
- ! 
- ! Unless required by applicable law or agreed to in writing, software
- ! distributed under the License is distributed on an "AS IS" BASIS,
- ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ! See the License for the specific language governing permissions and
- ! limitations under the License.
- !-->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
@@ -51,13 +47,13 @@
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-external-data</artifactId>
+			<artifactId>asterix-runtime</artifactId>
 			<version>0.8.1-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-runtime</artifactId>
+			<artifactId>asterix-events</artifactId>
 			<version>0.8.1-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
@@ -80,6 +76,12 @@
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
 		</dependency>
+                <dependency>
+                        <groupId>edu.uci.ics.hyracks</groupId>
+                        <artifactId>hyracks-hdfs-core</artifactId>
+                        <version>${hyracks.version}</version>
+                </dependency>
+
 		<dependency>
 			<groupId>org.apache.hadoop</groupId>
 			<artifactId>hadoop-core</artifactId>
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
index c078be8..ee476c4 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
@@ -26,9 +26,13 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
 
 /**
  * Caches metadata entities such that the MetadataManager does not have to
@@ -37,6 +41,7 @@
  * simply ignored, i.e., updates are not not applied to the cache.
  */
 public class MetadataCache {
+
     // Key is dataverse name.
     protected final Map<String, Dataverse> dataverses = new HashMap<String, Dataverse>();
     // Key is dataverse name. Key of value map is dataset name.
@@ -51,6 +56,13 @@
     protected final Map<FunctionSignature, Function> functions = new HashMap<FunctionSignature, Function>();
     // Key is adapter dataverse. Key of value map is the adapter name  
     protected final Map<String, Map<String, DatasourceAdapter>> adapters = new HashMap<String, Map<String, DatasourceAdapter>>();
+    // Key is FeedId   
+    protected final Map<FeedId, FeedActivity> feedActivity = new HashMap<FeedId, FeedActivity>();
+
+    // Key is DataverseName, Key of the value map is the Policy name   
+    protected final Map<String, Map<String, FeedPolicy>> feedPolicies = new HashMap<String, Map<String, FeedPolicy>>();
+    // Key is library dataverse. Key of value map is the library  
+    protected final Map<String, Map<String, Library>> libraries = new HashMap<String, Map<String, Library>>();
 
     // Atomically executes all metadata operations in ctx's log.
     public void commit(MetadataTransactionContext ctx) {
@@ -86,13 +98,19 @@
                         synchronized (datatypes) {
                             synchronized (functions) {
                                 synchronized (adapters) {
-                                    dataverses.clear();
-                                    nodeGroups.clear();
-                                    datasets.clear();
-                                    indexes.clear();
-                                    datatypes.clear();
-                                    functions.clear();
-                                    adapters.clear();
+                                    synchronized (feedActivity) {
+                                        synchronized (libraries) {
+                                            dataverses.clear();
+                                            nodeGroups.clear();
+                                            datasets.clear();
+                                            indexes.clear();
+                                            datatypes.clear();
+                                            functions.clear();
+                                            adapters.clear();
+                                            feedActivity.clear();
+                                            libraries.clear();
+                                        }
+                                    }
                                 }
                             }
                         }
@@ -180,20 +198,34 @@
                 synchronized (indexes) {
                     synchronized (datatypes) {
                         synchronized (functions) {
-                            datasets.remove(dataverse.getDataverseName());
-                            indexes.remove(dataverse.getDataverseName());
-                            datatypes.remove(dataverse.getDataverseName());
-                            adapters.remove(dataverse.getDataverseName());
-                            List<FunctionSignature> markedFunctionsForRemoval = new ArrayList<FunctionSignature>();
-                            for (FunctionSignature signature : functions.keySet()) {
-                                if (signature.getNamespace().equals(dataverse.getDataverseName())) {
-                                    markedFunctionsForRemoval.add(signature);
+                            synchronized (adapters) {
+                                synchronized (feedActivity) {
+                                    datasets.remove(dataverse.getDataverseName());
+                                    indexes.remove(dataverse.getDataverseName());
+                                    datatypes.remove(dataverse.getDataverseName());
+                                    adapters.remove(dataverse.getDataverseName());
+                                    List<FunctionSignature> markedFunctionsForRemoval = new ArrayList<FunctionSignature>();
+                                    for (FunctionSignature signature : functions.keySet()) {
+                                        if (signature.getNamespace().equals(dataverse.getDataverseName())) {
+                                            markedFunctionsForRemoval.add(signature);
+                                        }
+                                    }
+                                    for (FunctionSignature signature : markedFunctionsForRemoval) {
+                                        functions.remove(signature);
+                                    }
+                                    List<FeedId> feedActivitiesMarkedForRemoval = new ArrayList<FeedId>();
+                                    for (FeedId fid : feedActivity.keySet()) {
+                                        if (fid.getDataverse().equals(dataverse.getDataverseName())) {
+                                            feedActivitiesMarkedForRemoval.add(fid);
+                                        }
+                                    }
+                                    for (FeedId fid : feedActivitiesMarkedForRemoval) {
+                                        feedActivity.remove(fid);
+                                    }
+
+                                    return dataverses.remove(dataverse.getDataverseName());
                                 }
                             }
-                            for (FunctionSignature signature : markedFunctionsForRemoval) {
-                                functions.remove(signature);
-                            }
-                            return dataverses.remove(dataverse.getDataverseName());
                         }
                     }
                 }
@@ -374,9 +406,36 @@
         }
     }
 
+    public Object addFeedPolicyIfNotExists(FeedPolicy feedPolicy) {
+        synchronized (feedPolicy) {
+            Map<String, FeedPolicy> p = feedPolicies.get(feedPolicy.getDataverseName());
+            if (p == null) {
+                p = new HashMap<String, FeedPolicy>();
+                p.put(feedPolicy.getPolicyName(), feedPolicy);
+                feedPolicies.put(feedPolicy.getDataverseName(), p);
+            } else {
+                if (p.get(feedPolicy.getPolicyName()) == null) {
+                    p.put(feedPolicy.getPolicyName(), feedPolicy);
+                }
+            }
+            return null;
+        }
+    }
+
+    public Object dropFeedPolicy(FeedPolicy feedPolicy) {
+        synchronized (feedPolicies) {
+            Map<String, FeedPolicy> p = feedPolicies.get(feedPolicy.getDataverseName());
+            if (p != null && p.get(feedPolicy.getPolicyName()) != null) {
+                return p.remove(feedPolicy).getPolicyName();
+            }
+            return null;
+        }
+    }
+
     public Object addAdapterIfNotExists(DatasourceAdapter adapter) {
         synchronized (adapters) {
-            Map<String, DatasourceAdapter> adaptersInDataverse = adapters.get(adapter.getAdapterIdentifier().getNamespace());
+            Map<String, DatasourceAdapter> adaptersInDataverse = adapters.get(adapter.getAdapterIdentifier()
+                    .getNamespace());
             if (adaptersInDataverse == null) {
                 adaptersInDataverse = new HashMap<String, DatasourceAdapter>();
                 adapters.put(adapter.getAdapterIdentifier().getNamespace(), adaptersInDataverse);
@@ -399,4 +458,46 @@
             return null;
         }
     }
+
+    public Object addFeedActivityIfNotExists(FeedActivity fa) {
+        synchronized (feedActivity) {
+            FeedId fid = new FeedId(fa.getDataverseName(), fa.getDatasetName());
+            if (!feedActivity.containsKey(fid)) {
+                feedActivity.put(fid, fa);
+            }
+        }
+        return null;
+    }
+
+    public Object dropFeedActivity(FeedActivity fa) {
+        synchronized (feedActivity) {
+            FeedId fid = new FeedId(fa.getDataverseName(), fa.getDatasetName());
+            return feedActivity.remove(fid);
+        }
+    }
+
+    public Object addLibraryIfNotExists(Library library) {
+        synchronized (libraries) {
+            Map<String, Library> libsInDataverse = libraries.get(library.getDataverseName());
+            boolean needToAddd = (libsInDataverse == null || libsInDataverse.get(library.getName()) != null);
+            if (needToAddd) {
+                if (libsInDataverse == null) {
+                    libsInDataverse = new HashMap<String, Library>();
+                    libraries.put(library.getDataverseName(), libsInDataverse);
+                }
+                return libsInDataverse.put(library.getDataverseName(), library);
+            }
+            return null;
+        }
+    }
+
+    public Object dropLibrary(Library library) {
+        synchronized (libraries) {
+            Map<String, Library> librariesInDataverse = libraries.get(library.getDataverseName());
+            if (librariesInDataverse != null) {
+                return librariesInDataverse.remove(library.getName());
+            }
+            return null;
+        }
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
index b606839..e58466d 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
@@ -17,6 +17,7 @@
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
+
 public class MetadataException extends AsterixException {
     private static final long serialVersionUID = 1L;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
index 8f0eedb..9132c63 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
@@ -31,11 +31,17 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 
 /**
  * Provides access to Asterix metadata via remote methods to the metadata node.
@@ -70,6 +76,7 @@
  * with transaction ids of regular jobs or other metadata transactions.
  */
 public class MetadataManager implements IMetadataManager {
+
     // Set in init().
     public static MetadataManager INSTANCE;
     private final MetadataCache cache = new MetadataCache();
@@ -77,6 +84,7 @@
     private IMetadataNode metadataNode;
     private final ReadWriteLock metadataLatch;
     private final AsterixMetadataProperties metadataProperties;
+    private IHyracksClientConnection hcc;
 
     public MetadataManager(IAsterixStateProxy proxy, AsterixMetadataProperties metadataProperties) {
         if (proxy == null) {
@@ -95,10 +103,14 @@
             if (metadataNode != null) {
                 return;
             }
-            metadataNode = proxy.getMetadataNode();
-            if (metadataNode == null) {
-                throw new Error("Failed to get the MetadataNode.\n" + "The MetadataNode was configured to run on NC: "
-                        + metadataProperties.getMetadataNodeName());
+            while (metadataNode == null) {
+                metadataNode = proxy.getMetadataNode();
+                try {
+                    Thread.sleep(500);
+                } catch (InterruptedException ie) {
+                    throw new RemoteException("Interrupted while waiting for obtaining handle to Metadata node " + "("
+                            + metadataProperties.getMetadataNodeName() + ")");
+                }
             }
         }
     }
@@ -530,6 +542,16 @@
     }
 
     @Override
+    public void addFeedPolicy(MetadataTransactionContext mdTxnCtx, FeedPolicy feedPolicy) throws MetadataException {
+        try {
+            metadataNode.addFeedPolicy(mdTxnCtx.getJobId(), feedPolicy);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        mdTxnCtx.addFeedPolicy(feedPolicy);
+    }
+
+    @Override
     public void initializeDatasetIdFactory(MetadataTransactionContext ctx) throws MetadataException {
         try {
             metadataNode.initializeDatasetIdFactory(ctx.getJobId());
@@ -585,6 +607,78 @@
     }
 
     @Override
+    public void registerFeedActivity(MetadataTransactionContext ctx, FeedId feedId, FeedActivity feedActivity)
+            throws MetadataException {
+        try {
+            metadataNode.registerFeedActivity(ctx.getJobId(), feedId, feedActivity);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public FeedActivity getRecentFeedActivity(MetadataTransactionContext ctx, String dataverseName, String datasetName,
+            FeedActivityType... feedActivityTypes) throws MetadataException {
+
+        FeedActivity feedActivity = null;
+        try {
+            feedActivity = metadataNode.getRecentFeedActivity(ctx.getJobId(), new FeedId(dataverseName, datasetName),
+                    feedActivityTypes);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        return feedActivity;
+    }
+
+    public void dropLibrary(MetadataTransactionContext ctx, String dataverseName, String libraryName)
+            throws MetadataException {
+        try {
+            metadataNode.dropLibrary(ctx.getJobId(), dataverseName, libraryName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        ctx.dropLibrary(dataverseName, libraryName);
+    }
+
+    @Override
+    public List<Library> getDataverseLibraries(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException {
+        List<Library> dataverseLibaries = null;
+        try {
+            // Assuming that the transaction can read its own writes on the
+            // metadata node.
+            dataverseLibaries = metadataNode.getDataverseLibraries(ctx.getJobId(), dataverseName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        // Don't update the cache to avoid checking against the transaction's
+        // uncommitted functions.
+        return dataverseLibaries;
+    }
+
+    @Override
+    public void addLibrary(MetadataTransactionContext ctx, Library library) throws MetadataException {
+        try {
+            metadataNode.addLibrary(ctx.getJobId(), library);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        ctx.addLibrary(library);
+    }
+
+    @Override
+    public Library getLibrary(MetadataTransactionContext ctx, String dataverseName, String libraryName)
+            throws MetadataException, RemoteException {
+        Library library = null;
+        try {
+            library = metadataNode.getLibrary(ctx.getJobId(), dataverseName, libraryName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        return library;
+    }
+
+    @Override
     public void acquireWriteLatch() {
         metadataLatch.writeLock().lock();
     }
@@ -603,4 +697,29 @@
     public void releaseReadLatch() {
         metadataLatch.readLock().unlock();
     }
+
+    @Override
+    public FeedPolicy getFeedPolicy(MetadataTransactionContext ctx, String dataverse, String policyName)
+            throws MetadataException {
+
+        FeedPolicy FeedPolicy = null;
+        try {
+            FeedPolicy = metadataNode.getFeedPolicy(ctx.getJobId(), dataverse, policyName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        return FeedPolicy;
+    }
+
+    @Override
+    public List<FeedActivity> getActiveFeeds(MetadataTransactionContext ctx) throws MetadataException {
+        List<FeedActivity> feedActivities = null;
+        try {
+            feedActivities = metadataNode.getActiveFeeds(ctx.getJobId());
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        return feedActivities;
+    }
+
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
index 5549c02..ff3909a 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
@@ -17,7 +17,10 @@
 
 import java.rmi.RemoteException;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
@@ -42,19 +45,28 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DatasetTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DatasourceAdapterTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DatatypeTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DataverseTupleTranslator;
+import edu.uci.ics.asterix.metadata.entitytupletranslators.FeedActivityTupleTranslator;
+import edu.uci.ics.asterix.metadata.entitytupletranslators.FeedPolicyTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.FunctionTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.IndexTupleTranslator;
+import edu.uci.ics.asterix.metadata.entitytupletranslators.LibraryTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.NodeGroupTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.NodeTupleTranslator;
+import edu.uci.ics.asterix.metadata.feeds.FeedActivityIdFactory;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
 import edu.uci.ics.asterix.metadata.valueextractors.DatasetNameValueExtractor;
 import edu.uci.ics.asterix.metadata.valueextractors.DatatypeNameValueExtractor;
 import edu.uci.ics.asterix.metadata.valueextractors.MetadataEntityValueExtractor;
@@ -301,12 +313,20 @@
     public void dropDataverse(JobId jobId, String dataverseName) throws MetadataException, RemoteException {
         try {
             List<Dataset> dataverseDatasets;
-
+            Dataset ds;
             dataverseDatasets = getDataverseDatasets(jobId, dataverseName);
             if (dataverseDatasets != null && dataverseDatasets.size() > 0) {
                 // Drop all datasets in this dataverse.
                 for (int i = 0; i < dataverseDatasets.size(); i++) {
-                    dropDataset(jobId, dataverseName, dataverseDatasets.get(i).getDatasetName());
+                    ds = dataverseDatasets.get(i);
+                    dropDataset(jobId, dataverseName, ds.getDatasetName());
+                    if (ds.getDatasetDetails().getDatasetType().equals(DatasetType.FEED)) {
+                        String ngName = ds.getDataverseName() + ":" + ds.getDatasetName();
+                        NodeGroup ng = getNodeGroup(jobId, ngName);
+                        if (ng != null) {
+                            dropNodegroup(jobId, ngName);
+                        }
+                    }
                 }
             }
             List<Datatype> dataverseDatatypes;
@@ -419,6 +439,7 @@
                     }
                 }
             }
+
         } catch (Exception e) {
             throw new MetadataException(e);
         }
@@ -638,6 +659,20 @@
         }
     }
 
+    public List<Library> getDataverseLibraries(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName);
+            LibraryTupleTranslator tupleReaderWriter = new LibraryTupleTranslator(false);
+            IValueExtractor<Library> valueExtractor = new MetadataEntityValueExtractor<Library>(tupleReaderWriter);
+            List<Library> results = new ArrayList<Library>();
+            searchIndex(jobId, MetadataPrimaryIndexes.LIBRARY_DATASET, searchKey, valueExtractor, results);
+            return results;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
     private List<Datatype> getDataverseDatatypes(JobId jobId, String dataverseName) throws MetadataException,
             RemoteException {
         try {
@@ -772,6 +807,7 @@
             }
             return results.get(0);
         } catch (Exception e) {
+            e.printStackTrace();
             throw new MetadataException(e);
         }
     }
@@ -1133,7 +1169,211 @@
     }
 
     @Override
+    public void addLibrary(JobId jobId, Library library) throws MetadataException, RemoteException {
+        try {
+            // Insert into the 'Library' dataset.
+            LibraryTupleTranslator tupleReaderWriter = new LibraryTupleTranslator(true);
+            ITupleReference libraryTuple = tupleReaderWriter.getTupleFromMetadataEntity(library);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.LIBRARY_DATASET, libraryTuple);
+
+        } catch (BTreeDuplicateKeyException e) {
+            throw new MetadataException("A library with this name " + library.getDataverseName()
+                    + " already exists in dataverse '" + library.getDataverseName() + "'.", e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public void dropLibrary(JobId jobId, String dataverseName, String libraryName) throws MetadataException,
+            RemoteException {
+        Library library;
+        try {
+            library = getLibrary(jobId, dataverseName, libraryName);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+        if (library == null) {
+            throw new MetadataException("Cannot drop library '" + library + "' because it doesn't exist.");
+        }
+        try {
+            // Delete entry from the 'Library' dataset.
+            ITupleReference searchKey = createTuple(dataverseName, libraryName);
+            // Searches the index for the tuple to be deleted. Acquires an S
+            // lock on the 'Adapter' dataset.
+            ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.LIBRARY_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.LIBRARY_DATASET, datasetTuple);
+
+            // TODO: Change this to be a BTree specific exception, e.g.,
+            // BTreeKeyDoesNotExistException.
+        } catch (TreeIndexException e) {
+            throw new MetadataException("Cannot drop library '" + libraryName, e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public Library getLibrary(JobId jobId, String dataverseName, String libraryName) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName, libraryName);
+            LibraryTupleTranslator tupleReaderWriter = new LibraryTupleTranslator(false);
+            List<Library> results = new ArrayList<Library>();
+            IValueExtractor<Library> valueExtractor = new MetadataEntityValueExtractor<Library>(tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.LIBRARY_DATASET, searchKey, valueExtractor, results);
+            if (results.isEmpty()) {
+                return null;
+            }
+            return results.get(0);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
     public int getMostRecentDatasetId() throws MetadataException, RemoteException {
         return DatasetIdFactory.getMostRecentDatasetId();
     }
+
+    @Override
+    public void registerFeedActivity(JobId jobId, FeedId feedId, FeedActivity feedActivity) throws MetadataException,
+            RemoteException {
+        try {
+            if (!FeedActivityIdFactory.isInitialized()) {
+                initializeFeedActivityIdFactory(jobId);
+            }
+            feedActivity.setActivityId(FeedActivityIdFactory.generateFeedActivityId());
+            FeedActivityTupleTranslator tupleReaderWriter = new FeedActivityTupleTranslator(true);
+            ITupleReference tuple = tupleReaderWriter.getTupleFromMetadataEntity(feedActivity);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET, tuple);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public FeedActivity getRecentFeedActivity(JobId jobId, FeedId feedId, FeedActivityType... activityType)
+            throws MetadataException, RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(feedId.getDataverse(), feedId.getDataset());
+            FeedActivityTupleTranslator tupleReaderWriter = new FeedActivityTupleTranslator(false);
+            List<FeedActivity> results = new ArrayList<FeedActivity>();
+            IValueExtractor<FeedActivity> valueExtractor = new MetadataEntityValueExtractor<FeedActivity>(
+                    tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET, searchKey, valueExtractor, results);
+            if (!results.isEmpty()) {
+                Collections.sort(results);
+                if (activityType == null) {
+                    return results.get(0);
+                } else {
+                    for (FeedActivity result : results) {
+                        for (FeedActivityType ft : activityType) {
+                            if (result.getActivityType().equals(ft)) {
+                                return result;
+                            }
+                        }
+                    }
+                }
+            }
+            return null;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public void initializeFeedActivityIdFactory(JobId jobId) throws MetadataException, RemoteException {
+        try {
+            ITupleReference searchKey = createTuple();
+            FeedActivityTupleTranslator tupleReaderWriter = new FeedActivityTupleTranslator(true);
+            List<FeedActivity> results = new ArrayList<FeedActivity>();
+            IValueExtractor<FeedActivity> valueExtractor = new MetadataEntityValueExtractor<FeedActivity>(
+                    tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET, searchKey, valueExtractor, results);
+            int maxActivityId = 0;
+            for (FeedActivity fa : results) {
+                if (maxActivityId < fa.getActivityId()) {
+                    maxActivityId = fa.getActivityId();
+                }
+            }
+            FeedActivityIdFactory.initialize(maxActivityId);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public void addFeedPolicy(JobId jobId, FeedPolicy feedPolicy) throws MetadataException, RemoteException {
+        try {
+            // Insert into the 'FeedPolicy' dataset.
+            FeedPolicyTupleTranslator tupleReaderWriter = new FeedPolicyTupleTranslator(true);
+            ITupleReference feedPolicyTuple = tupleReaderWriter.getTupleFromMetadataEntity(feedPolicy);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.FEED_POLICY_DATASET, feedPolicyTuple);
+
+        } catch (BTreeDuplicateKeyException e) {
+            throw new MetadataException("A feed policy with this name " + feedPolicy.getPolicyName()
+                    + " already exists in dataverse '" + feedPolicy.getPolicyName() + "'.", e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public FeedPolicy getFeedPolicy(JobId jobId, String dataverse, String policyName) throws MetadataException,
+            RemoteException {
+
+        try {
+            ITupleReference searchKey = createTuple(dataverse, policyName);
+            FeedPolicyTupleTranslator tupleReaderWriter = new FeedPolicyTupleTranslator(false);
+            List<FeedPolicy> results = new ArrayList<FeedPolicy>();
+            IValueExtractor<FeedPolicy> valueExtractor = new MetadataEntityValueExtractor<FeedPolicy>(tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.FEED_POLICY_DATASET, searchKey, valueExtractor, results);
+            if (!results.isEmpty()) {
+                return results.get(0);
+            }
+            return null;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public List<FeedActivity> getActiveFeeds(JobId jobId) throws MetadataException, RemoteException {
+        List<FeedActivity> activeFeeds = new ArrayList<FeedActivity>();
+        try {
+            ITupleReference searchKey = createTuple();
+            FeedActivityTupleTranslator tupleReaderWriter = new FeedActivityTupleTranslator(true);
+            List<FeedActivity> results = new ArrayList<FeedActivity>();
+            IValueExtractor<FeedActivity> valueExtractor = new MetadataEntityValueExtractor<FeedActivity>(
+                    tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET, searchKey, valueExtractor, results);
+            Map<FeedId, FeedActivity> initiatedFeeds = new HashMap<FeedId, FeedActivity>();
+            FeedId fid = null;
+            for (FeedActivity fa : results) {
+                switch (fa.getActivityType()) {
+                    case FEED_BEGIN:
+                        fid = new FeedId(fa.getDataverseName(), fa.getDatasetName());
+                        initiatedFeeds.put(fid, fa);
+                        break;
+                    case FEED_FAILURE:
+                        break;
+                    case FEED_END:
+                        fid = new FeedId(fa.getDataverseName(), fa.getDatasetName());
+                        initiatedFeeds.remove(fid);
+                        break;
+                }
+            }
+            for (FeedActivity fa : initiatedFeeds.values()) {
+                activeFeeds.add(fa);
+            }
+            return activeFeeds;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
index dedcedf..93ae505 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
@@ -19,15 +19,17 @@
 
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.common.transactions.JobId;
-import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.AdapterIdentifier;
 
 /**
  * Used to implement serializable transactions against the MetadataCache.
@@ -123,6 +125,11 @@
         logAndApply(new MetadataLogicalOperation(dataverse, false));
     }
 
+    public void addLibrary(Library library) {
+        droppedCache.dropLibrary(library);
+        logAndApply(new MetadataLogicalOperation(library, true));
+    }
+
     public void dropDataDatatype(String dataverseName, String datatypeName) {
         Datatype datatype = new Datatype(dataverseName, datatypeName, null, false);
         droppedCache.addDatatypeIfNotExists(datatype);
@@ -149,6 +156,12 @@
         logAndApply(new MetadataLogicalOperation(adapter, false));
     }
 
+    public void dropLibrary(String dataverseName, String libraryName) {
+        Library library = new Library(dataverseName, libraryName);
+        droppedCache.addLibraryIfNotExists(library);
+        logAndApply(new MetadataLogicalOperation(library, false));
+    }
+
     public void logAndApply(MetadataLogicalOperation op) {
         opLog.add(op);
         doOperation(op);
@@ -200,4 +213,10 @@
         droppedCache.clear();
         opLog.clear();
     }
+
+    public void addFeedPolicy(FeedPolicy feedPolicy) {
+        droppedCache.dropFeedPolicy(feedPolicy);
+        logAndApply(new MetadataLogicalOperation(feedPolicy, true));
+
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterEventsSubscriber.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterEventsSubscriber.java
new file mode 100644
index 0000000..049a45c
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterEventsSubscriber.java
@@ -0,0 +1,47 @@
+package edu.uci.ics.asterix.metadata.api;
+
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.util.Set;
+
+import edu.uci.ics.asterix.metadata.cluster.IClusterManagementWorkResponse;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties.State;
+
+public interface IClusterEventsSubscriber {
+
+    /**
+     * @param deadNodeIds
+     * @return
+     */
+    public Set<IClusterManagementWork> notifyNodeFailure(Set<String> deadNodeIds);
+
+    /**
+     * @param joinedNodeId
+     * @return
+     */
+    public Set<IClusterManagementWork> notifyNodeJoin(String joinedNodeId);
+
+    /**
+     * @param response
+     */
+    public void notifyRequestCompletion(IClusterManagementWorkResponse response);
+
+    /**
+     * @param previousState
+     * @param newState
+     */
+    public void notifyStateChange(State previousState, State newState);
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManagementWork.java
similarity index 68%
copy from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
copy to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManagementWork.java
index dcef2c8..65ac354 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManagementWork.java
@@ -12,17 +12,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.metadata.api;
 
-import java.io.Serializable;
+public interface IClusterManagementWork {
 
-public interface IFeedMessage extends Serializable {
-
-    public enum MessageType {
-        STOP,
-        ALTER,
+    public enum WorkType {
+        ADD_NODE,
+        REMOVE_NODE
     }
 
-    public MessageType getMessageType();
+    public WorkType getClusterManagementWorkType();
 
+    public int getWorkId();
+
+    public IClusterEventsSubscriber getSourceSubscriber();
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManager.java
new file mode 100644
index 0000000..ea07a62
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IClusterManager.java
@@ -0,0 +1,38 @@
+package edu.uci.ics.asterix.metadata.api;
+
+import java.util.Set;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+
+public interface IClusterManager {
+
+    /**
+     * @param node
+     * @throws AsterixException
+     */
+    public void addNode(Node node) throws AsterixException;
+
+    /**
+     * @param node
+     * @throws AsterixException
+     */
+    public void removeNode(Node node) throws AsterixException;
+
+    /**
+     * @param subscriber
+     */
+    public void registerSubscriber(IClusterEventsSubscriber subscriber);
+
+    /**
+     * @param sunscriber
+     * @return
+     */
+    public boolean deregisterSubscriber(IClusterEventsSubscriber sunscriber);
+
+    /**
+     * @return
+     */
+    public Set<IClusterEventsSubscriber> getRegisteredClusterEventSubscribers();
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
index 22c5e46..8befe1f 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
@@ -8,7 +8,7 @@
  * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * WIThOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
@@ -16,6 +16,7 @@
 package edu.uci.ics.asterix.metadata.api;
 
 import java.rmi.RemoteException;
+import java.util.Collection;
 import java.util.List;
 
 import edu.uci.ics.asterix.common.exceptions.ACIDException;
@@ -26,10 +27,15 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
 
 /**
  * A metadata manager provides user access to Asterix metadata (e.g., types,
@@ -127,7 +133,7 @@
      * @throws MetadataException
      */
     List<Dataverse> getDataverses(MetadataTransactionContext ctx) throws MetadataException;
-    
+
     /**
      * Retrieves a dataverse with given name.
      * 
@@ -178,7 +184,7 @@
      *             For example, if the dataset already exists.
      */
     public void addDataset(MetadataTransactionContext ctx, Dataset dataset) throws MetadataException;
-    
+
     /**
      * Retrieves a dataset within a given dataverse.
      * 
@@ -440,10 +446,53 @@
     public List<Function> getDataverseFunctions(MetadataTransactionContext ctx, String dataverseName)
             throws MetadataException;
 
+    /**
+     * @param ctx
+     * @param feedId
+     * @param feedActivity
+     * @throws MetadataException
+     */
+    public void registerFeedActivity(MetadataTransactionContext ctx, FeedId feedId, FeedActivity feedActivity)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     * @param dataverseName
+     * @param datasetName
+     * @return
+     * @throws MetadataException
+     */
+    public FeedActivity getRecentFeedActivity(MetadataTransactionContext ctx, String dataverseName, String datasetName,
+            FeedActivityType... activityTypeFilter) throws MetadataException;
+
+    /**
+     * @param ctx
+     * @param policy
+     * @throws MetadataException
+     */
+    public void addFeedPolicy(MetadataTransactionContext ctx, FeedPolicy policy) throws MetadataException;
+
+    /**
+     * @param ctx
+     * @param dataverse
+     * @param policyName
+     * @return
+     * @throws MetadataException
+     */
+    public FeedPolicy getFeedPolicy(MetadataTransactionContext ctx, String dataverse, String policyName)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     * @return
+     * @throws MetadataException
+     */
+    public List<FeedActivity> getActiveFeeds(MetadataTransactionContext ctx) throws MetadataException;
+
     public void initializeDatasetIdFactory(MetadataTransactionContext ctx) throws MetadataException;
-    
+
     public int getMostRecentDatasetId() throws MetadataException;
-    
+
     public void acquireWriteLatch();
 
     public void releaseWriteLatch();
@@ -452,5 +501,62 @@
 
     public void releaseReadLatch();
 
+    /**
+     * Removes a library , acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the adapter that is to be deleted.
+     * @param libraryName
+     *            Name of library to be deleted. MetadataException for example,
+     *            if the library does not exists.
+     * @throws RemoteException
+     */
+    public void dropLibrary(MetadataTransactionContext ctx, String dataverseName, String libraryName)
+            throws MetadataException;
+
+    /**
+     * Adds a library, acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param library
+     *            Library to be added
+     * @throws MetadataException
+     *             for example, if the library is already added.
+     * @throws RemoteException
+     */
+    public void addLibrary(MetadataTransactionContext ctx, Library library) throws MetadataException;
+
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the library that is to be retrieved.
+     * @param libraryName
+     *            name of the library that is to be retrieved
+     * @return Library
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public Library getLibrary(MetadataTransactionContext ctx, String dataverseName, String libraryName)
+            throws MetadataException, RemoteException;
+
+    /**
+     * Retireve libraries installed in a given dataverse.
+     * 
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the library that is to be retrieved.
+     * @return Library
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<Library> getDataverseLibraries(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException;
 
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
index d1e63e1..3c2e241 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
@@ -28,10 +28,15 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.Library;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
 
 /**
  * A metadata node stores metadata in its local storage structures (currently
@@ -383,7 +388,6 @@
     public void addNode(JobId jobId, Node node) throws MetadataException, RemoteException;
 
     /**
-
      * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param functionSignature
@@ -408,7 +412,8 @@
      *             group to be deleted.
      * @throws RemoteException
      */
-    public void dropFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException, RemoteException;
+    public void dropFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException,
+            RemoteException;
 
     /**
      * @param jobId
@@ -442,8 +447,8 @@
     public List<DatasourceAdapter> getDataverseAdapters(JobId jobId, String dataverseName) throws MetadataException,
             RemoteException;
 
-    public DatasourceAdapter getAdapter(JobId jobId, String dataverseName, String adapterName) throws MetadataException,
-            RemoteException;
+    public DatasourceAdapter getAdapter(JobId jobId, String dataverseName, String adapterName)
+            throws MetadataException, RemoteException;
 
     /**
      * Deletes a adapter , acquiring local locks on behalf of the given
@@ -472,8 +477,120 @@
      */
     public void addAdapter(JobId jobId, DatasourceAdapter adapter) throws MetadataException, RemoteException;
 
+    /**
+     * @param jobId
+     * @param feedId
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public FeedActivity getRecentFeedActivity(JobId jobId, FeedId feedId, FeedActivityType... feedActivityFilter)
+            throws MetadataException, RemoteException;
+
     public void initializeDatasetIdFactory(JobId jobId) throws MetadataException, RemoteException;
-    
+
+    /**
+     * @param jobId
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public void initializeFeedActivityIdFactory(JobId jobId) throws MetadataException, RemoteException;
+
     public int getMostRecentDatasetId() throws MetadataException, RemoteException;
 
+    /**
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param feedId
+     *            A unique id for the feed
+     * @param feedActivity
+     */
+    public void registerFeedActivity(JobId jobId, FeedId feedId, FeedActivity feedActivity) throws MetadataException,
+            RemoteException;
+
+    /**
+     * @param jobId
+     * @param feedPolicy
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public void addFeedPolicy(JobId jobId, FeedPolicy feedPolicy) throws MetadataException, RemoteException;
+
+    /**
+     * @param jobId
+     * @param dataverse
+     * @param policy
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public FeedPolicy getFeedPolicy(JobId jobId, String dataverse, String policy) throws MetadataException,
+            RemoteException;
+
+    /**
+     * @param jobId
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<FeedActivity> getActiveFeeds(JobId jobId) throws MetadataException, RemoteException;
+
+    /**
+     * Removes a library , acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the adapter that is to be deleted.
+     * @param libraryName
+     *            Name of library to be deleted. MetadataException for example,
+     *            if the library does not exists.
+     * @throws RemoteException
+     */
+    public void dropLibrary(JobId jobId, String dataverseName, String libraryName) throws MetadataException,
+            RemoteException;
+
+    /**
+     * Adds a library, acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param library
+     *            Library to be added
+     * @throws MetadataException
+     *             for example, if the library is already added.
+     * @throws RemoteException
+     */
+    public void addLibrary(JobId jobId, Library library) throws MetadataException, RemoteException;
+
+    /**
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the library that is to be retrieved.
+     * @param libraryName
+     *            name of the library that is to be retrieved
+     * @return Library
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public Library getLibrary(JobId jobId, String dataverseName, String libraryName) throws MetadataException,
+            RemoteException;
+
+    /**
+     * Retireve libraries installed in a given dataverse.
+     * 
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the library that is to be retrieved.
+     * @return Library
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<Library> getDataverseLibraries(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException;
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
index aa976f8..262b957 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
@@ -37,8 +37,6 @@
 import edu.uci.ics.asterix.common.ioopcallbacks.LSMBTreeIOOperationCallbackFactory;
 import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.common.transactions.TransactionalResourceManagerRepository;
-import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
-import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
@@ -50,12 +48,16 @@
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails.FileStructure;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails.PartitioningStrategy;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.AdapterIdentifier;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
+import edu.uci.ics.asterix.metadata.feeds.IAdapterFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat;
@@ -118,7 +120,8 @@
                 MetadataPrimaryIndexes.DATASET_DATASET, MetadataPrimaryIndexes.DATATYPE_DATASET,
                 MetadataPrimaryIndexes.INDEX_DATASET, MetadataPrimaryIndexes.NODE_DATASET,
                 MetadataPrimaryIndexes.NODEGROUP_DATASET, MetadataPrimaryIndexes.FUNCTION_DATASET,
-                MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET };
+                MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET,
+                MetadataPrimaryIndexes.FEED_POLICY_DATASET, MetadataPrimaryIndexes.LIBRARY_DATASET };
         secondaryIndexes = new IMetadataIndex[] { MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX,
                 MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX,
                 MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX };
@@ -179,6 +182,7 @@
                 insertNodes(mdTxnCtx);
                 insertInitialGroups(mdTxnCtx);
                 insertInitialAdapters(mdTxnCtx);
+                insertInitialFeedPolicies(mdTxnCtx);
 
                 if (LOGGER.isLoggable(Level.INFO)) {
                     LOGGER.info("Finished creating metadata B-trees.");
@@ -313,7 +317,10 @@
                 "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory",
                 "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory",
                 "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory",
-                "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", };
+                "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory",
+                "edu.uci.ics.asterix.tools.external.data.TwitterFirehoseFeedAdapterFactory",
+                "edu.uci.ics.asterix.tools.external.data.GenericSocketFeedAdapterFactory",
+                "edu.uci.ics.asterix.tools.external.data.SyntheticTwitterFeedAdapterFactory"};
         DatasourceAdapter adapter;
         for (String adapterClassName : builtInAdapterClassNames) {
             adapter = getAdapter(adapterClassName);
@@ -321,6 +328,12 @@
         }
     }
 
+    private static void insertInitialFeedPolicies(MetadataTransactionContext mdTxnCtx) throws Exception {
+        for (FeedPolicy feedPolicy : BuiltinFeedPolicies.policies) {
+            MetadataManager.INSTANCE.addFeedPolicy(mdTxnCtx, feedPolicy);
+        }
+    }
+
     private static DatasourceAdapter getAdapter(String adapterFactoryClassName) throws Exception {
         String adapterName = ((IAdapterFactory) (Class.forName(adapterFactoryClassName).newInstance())).getName();
         return new DatasourceAdapter(new AdapterIdentifier(MetadataConstants.METADATA_DATAVERSE_NAME, adapterName),
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataConstants.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataConstants.java
index 4c9b7d2..1957666 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataConstants.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataConstants.java
@@ -19,10 +19,10 @@
 
     // Name of the dataverse the metadata lives in.
     public final static String METADATA_DATAVERSE_NAME = "Metadata";
-    
+
     // Name of the node group where metadata is stored on.
     public final static String METADATA_NODEGROUP_NAME = "MetadataGroup";
-    
+
     // Name of the default nodegroup where internal/feed datasets will be partitioned
     // if an explicit nodegroup is not specified at the time of creation of a dataset
     public static final String METADATA_DEFAULT_NODEGROUP_NAME = "DEFAULT_NG_ALL_NODES";
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
index 8bdd92b..12fe446 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
@@ -32,6 +32,11 @@
     public static IMetadataIndex NODE_DATASET;
     public static IMetadataIndex NODEGROUP_DATASET;
     public static IMetadataIndex FUNCTION_DATASET;
+    public static IMetadataIndex DATASOURCE_ADAPTER_DATASET;
+    public static IMetadataIndex LIBRARY_DATASET;
+    public static IMetadataIndex FEED_ACTIVITY_DATASET;
+    public static IMetadataIndex FEED_POLICY_DATASET;
+
     public static final int METADATA_DATASET_ID = 0;
     public static final int DATAVERSE_DATASET_ID = 1;
     public static final int DATASET_DATASET_ID = 2;
@@ -41,9 +46,11 @@
     public static final int NODEGROUP_DATASET_ID = 6;
     public static final int FUNCTION_DATASET_ID = 7;
     public static final int DATASOURCE_ADAPTER_DATASET_ID = 8;
-    public static final int FIRST_AVAILABLE_USER_DATASET_ID = 100;
+    public static final int LIBRARY_DATASET_ID = 9;
+    public static final int FEED_ACTIVITY_DATASET_ID = 10;
+    public static final int FEED_POLICY_DATASET_ID = 11;
 
-    public static IMetadataIndex DATASOURCE_ADAPTER_DATASET;
+    public static final int FIRST_AVAILABLE_USER_DATASET_ID = 100;
 
     /**
      * Create all metadata primary index descriptors. MetadataRecordTypes must
@@ -92,5 +99,19 @@
                 BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName", "Name" }, 0,
                 MetadataRecordTypes.DATASOURCE_ADAPTER_RECORDTYPE, DATASOURCE_ADAPTER_DATASET_ID, true, new int[] { 0,
                         1 });
+
+        FEED_ACTIVITY_DATASET = new MetadataIndex("FeedActivity", null, 4, new IAType[] { BuiltinType.ASTRING,
+                BuiltinType.ASTRING, BuiltinType.AINT32 },
+                new String[] { "DataverseName", "DatasetName", "ActivityId" }, 0,
+                MetadataRecordTypes.FEED_ACTIVITY_RECORDTYPE, FEED_ACTIVITY_DATASET_ID, true, new int[] { 0, 1, 2 });
+
+        LIBRARY_DATASET = new MetadataIndex("Library", null, 3,
+                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName", "Name" }, 0,
+                MetadataRecordTypes.LIBRARY_RECORDTYPE, LIBRARY_DATASET_ID, true, new int[] { 0, 1 });
+
+        FEED_POLICY_DATASET = new MetadataIndex("FeedPolicy", null, 3, new IAType[] { BuiltinType.ASTRING,
+                BuiltinType.ASTRING }, new String[] { "DataverseName", "PolicyName" }, 0,
+                MetadataRecordTypes.FEED_POLICY_RECORDTYPE, FEED_POLICY_DATASET_ID, true, new int[] { 0, 1 });
+
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
index 50681ee..3b23873 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
@@ -47,6 +47,11 @@
     public static ARecordType NODEGROUP_RECORDTYPE;
     public static ARecordType FUNCTION_RECORDTYPE;
     public static ARecordType DATASOURCE_ADAPTER_RECORDTYPE;
+    public static ARecordType FEED_ACTIVITY_RECORDTYPE;
+    public static ARecordType FEED_POLICY_RECORDTYPE;
+    public static ARecordType POLICY_PARAMS_RECORDTYPE;
+    public static ARecordType FEED_ACTIVITY_DETAILS_RECORDTYPE;
+    public static ARecordType LIBRARY_RECORDTYPE;
 
     /**
      * Create all metadata record types.
@@ -56,6 +61,7 @@
         // depend on other types being created first.
         // These calls are one "dependency chain".
         try {
+            POLICY_PARAMS_RECORDTYPE = createPropertiesRecordType();
             DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE = createPropertiesRecordType();
             INTERNAL_DETAILS_RECORDTYPE = createInternalDetailsRecordType();
             EXTERNAL_DETAILS_RECORDTYPE = createExternalDetailsRecordType();
@@ -76,11 +82,27 @@
             NODEGROUP_RECORDTYPE = createNodeGroupRecordType();
             FUNCTION_RECORDTYPE = createFunctionRecordType();
             DATASOURCE_ADAPTER_RECORDTYPE = createDatasourceAdapterRecordType();
+            FEED_ACTIVITY_DETAILS_RECORDTYPE = createPropertiesRecordType();
+            FEED_ACTIVITY_RECORDTYPE = createFeedActivityRecordType();
+            FEED_POLICY_RECORDTYPE = createFeedPolicyRecordType();
+            LIBRARY_RECORDTYPE = createLibraryRecordType();
         } catch (AsterixException e) {
             throw new MetadataException(e);
         }
     }
 
+    public static final int FEED_POLICY_ARECORD_DATAVERSE_NAME_FIELD_INDEX = 0;
+    public static final int FEED_POLICY_ARECORD_POLICY_NAME_FIELD_INDEX = 1;
+    public static final int FEED_POLICY_ARECORD_DESCRIPTION_FIELD_INDEX = 2;
+    public static final int FEED_POLICY_ARECORD_PROPERTIES_FIELD_INDEX = 3;
+
+    private static ARecordType createFeedPolicyRecordType() throws AsterixException {
+        AUnorderedListType listPropertiesType = new AUnorderedListType(POLICY_PARAMS_RECORDTYPE, null);
+        String[] fieldNames = { "DataverseName", "PolicyName", "Description", "Properties" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, listPropertiesType };
+        return new ARecordType("FeedPolicyRecordType", fieldNames, fieldTypes, true);
+    }
+
     // Helper constants for accessing fields in an ARecord of type
     // DataverseRecordType.
     public static final int DATAVERSE_ARECORD_NAME_FIELD_INDEX = 0;
@@ -97,8 +119,8 @@
     // Helper constants for accessing fields in an ARecord of anonymous type
     // dataset properties.
     // Used for dataset hints or dataset adapter properties.
-    public static final int DATASOURCE_PROPERTIES_NAME_FIELD_INDEX = 0;
-    public static final int DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX = 1;
+    public static final int PROPERTIES_NAME_FIELD_INDEX = 0;
+    public static final int PROPERTIES_VALUE_FIELD_INDEX = 1;
 
     private static final ARecordType createPropertiesRecordType() throws AsterixException {
         String[] fieldNames = { "Name", "Value" };
@@ -142,14 +164,14 @@
     public static final int FEED_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX = 5;
     public static final int FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 6;
     public static final int FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX = 7;
-    public static final int FEED_DETAILS_ARECORD_STATE_FIELD_INDEX = 8;
 
     private static final ARecordType createFeedDetailsRecordType() throws AsterixException {
         AOrderedListType orderedListType = new AOrderedListType(BuiltinType.ASTRING, null);
         AOrderedListType orderedListOfPropertiesType = new AOrderedListType(DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE,
                 null);
+
         String[] fieldNames = { "FileStructure", "PartitioningStrategy", "PartitioningKey", "PrimaryKey", "GroupName",
-                "DatasourceAdapter", "Properties", "Function", "Status" };
+                "DatasourceAdapter", "Properties", "Function" };
 
         List<IAType> feedFunctionUnionList = new ArrayList<IAType>();
         feedFunctionUnionList.add(BuiltinType.ANULL);
@@ -157,8 +179,7 @@
         AUnionType feedFunctionUnion = new AUnionType(feedFunctionUnionList, null);
 
         IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListType, orderedListType,
-                BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListOfPropertiesType, feedFunctionUnion,
-                BuiltinType.ASTRING };
+                BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListOfPropertiesType, feedFunctionUnion };
 
         return new ARecordType(null, fieldNames, fieldTypes, true);
     }
@@ -357,4 +378,31 @@
         return new ARecordType("DatasourceAdapterRecordType", fieldNames, fieldTypes, true);
     }
 
+    // Helper constants for accessing fields in an ARecord of type
+    // FeedActivityRecordType.
+    public static final int FEED_ACTIVITY_ARECORD_DATAVERSE_NAME_FIELD_INDEX = 0;
+    public static final int FEED_ACTIVITY_ARECORD_DATASET_NAME_FIELD_INDEX = 1;
+    public static final int FEED_ACTIVITY_ARECORD_ACTIVITY_ID_FIELD_INDEX = 2;
+    public static final int FEED_ACTIVITY_ARECORD_ACTIVITY_TYPE_FIELD_INDEX = 3;
+    public static final int FEED_ACTIVITY_ARECORD_LAST_UPDATE_TIMESTAMP_FIELD_INDEX = 4;
+    public static final int FEED_ACTIVITY_ARECORD_DETAILS_FIELD_INDEX = 5;
+
+    private static ARecordType createFeedActivityRecordType() throws AsterixException {
+        AUnorderedListType unorderedPropertyListType = new AUnorderedListType(FEED_ACTIVITY_DETAILS_RECORDTYPE, null);
+        String[] fieldNames = { "DataverseName", "DatasetName", "ActivityId", "ActivityType", "UpdateTimestamp",
+                "Details" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.AINT32, BuiltinType.ASTRING,
+                BuiltinType.ASTRING, unorderedPropertyListType };
+        return new ARecordType("FeedActivityRecordType", fieldNames, fieldTypes, true);
+    }
+
+    public static final int LIBRARY_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int LIBRARY_ARECORD_NAME_FIELD_INDEX = 1;
+    public static final int LIBRARY_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+
+    private static ARecordType createLibraryRecordType() throws AsterixException {
+        String[] fieldNames = { "DataverseName", "Name", "Timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType("LibraryRecordType", fieldNames, fieldTypes, true);
+    }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AbstractClusterManagementWork.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AbstractClusterManagementWork.java
new file mode 100644
index 0000000..6948dbc
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AbstractClusterManagementWork.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.cluster;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+
+public abstract class AbstractClusterManagementWork implements IClusterManagementWork {
+
+    protected final IClusterEventsSubscriber subscriber;
+
+    protected final int workId;
+
+    @Override
+    public int getWorkId() {
+        return workId;
+    }
+
+    public AbstractClusterManagementWork(IClusterEventsSubscriber subscriber) {
+        this.subscriber = subscriber;
+        this.workId = WorkIdGenerator.getNextWorkId();
+    }
+
+    private static class WorkIdGenerator {
+        private static AtomicInteger workId = new AtomicInteger(0);
+
+        public static int getNextWorkId() {
+            return workId.incrementAndGet();
+        }
+
+    }
+
+    @Override
+    public IClusterEventsSubscriber getSourceSubscriber() {
+        return subscriber;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWork.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWork.java
new file mode 100644
index 0000000..68dcc4c
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWork.java
@@ -0,0 +1,27 @@
+package edu.uci.ics.asterix.metadata.cluster;
+
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+
+public class AddNodeWork extends AbstractClusterManagementWork {
+
+    private final int numberOfNodes;
+
+    @Override
+    public WorkType getClusterManagementWorkType() {
+        return WorkType.ADD_NODE;
+    }
+
+    public AddNodeWork(int numberOfNodes, IClusterEventsSubscriber subscriber) {
+        super(subscriber);
+        this.numberOfNodes = numberOfNodes;
+    }
+
+    public int getNumberOfNodes() {
+        return numberOfNodes;
+    }
+
+    @Override
+    public String toString() {
+        return WorkType.ADD_NODE + " " + numberOfNodes + " requested by " + subscriber;
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWorkResponse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWorkResponse.java
new file mode 100644
index 0000000..40999f0
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/AddNodeWorkResponse.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.cluster;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class AddNodeWorkResponse extends ClusterManagementWorkResponse {
+
+    private final List<String> nodesToBeAdded;
+    private final List<String> nodesAdded;
+
+    public AddNodeWorkResponse(AddNodeWork w, List<String> nodesToBeAdded) {
+        super(w);
+        this.nodesToBeAdded = nodesToBeAdded;
+        this.nodesAdded = new ArrayList<String>();
+    }
+
+    public List<String> getNodesAdded() {
+        return nodesAdded;
+    }
+
+    public boolean updateProgress(String addedNode) {
+        nodesToBeAdded.remove(addedNode);
+        nodesAdded.add(addedNode);
+        return nodesToBeAdded.isEmpty();
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManagementWorkResponse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManagementWorkResponse.java
new file mode 100644
index 0000000..d578a77
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManagementWorkResponse.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.metadata.cluster;
+
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+
+public class ClusterManagementWorkResponse implements IClusterManagementWorkResponse {
+
+    protected final IClusterManagementWork work;
+
+    protected Status status;
+
+    public ClusterManagementWorkResponse(IClusterManagementWork w) {
+        this.work = w;
+        this.status = Status.IN_PROGRESS;
+    }
+
+    @Override
+    public IClusterManagementWork getWork() {
+        return work;
+    }
+
+    @Override
+    public Status getStatus() {
+        return status;
+    }
+
+    @Override
+    public void setStatus(Status status) {
+        this.status = status;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManager.java
new file mode 100644
index 0000000..2e2c432
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/ClusterManager.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.cluster;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.common.config.AsterixExternalProperties;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.event.management.AsterixEventServiceClient;
+import edu.uci.ics.asterix.event.model.AsterixInstance;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.service.AsterixEventService;
+import edu.uci.ics.asterix.event.service.AsterixEventServiceUtil;
+import edu.uci.ics.asterix.event.service.ILookupService;
+import edu.uci.ics.asterix.event.service.ServiceProvider;
+import edu.uci.ics.asterix.event.util.PatternCreator;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+import edu.uci.ics.asterix.metadata.api.IClusterManager;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
+
+public class ClusterManager implements IClusterManager {
+
+    private static final Logger LOGGER = Logger.getLogger(AsterixEventServiceClient.class.getName());
+
+    public static ClusterManager INSTANCE = new ClusterManager();
+
+    private static String eventsDir = System.getenv("user.dir") + File.separator + "eventrix";
+
+    private static AsterixEventServiceClient client;
+
+    private static ILookupService lookupService;
+
+    private static final Set<IClusterEventsSubscriber> eventSubscribers = new HashSet<IClusterEventsSubscriber>();
+
+    private ClusterManager() {
+        Cluster asterixCluster = AsterixClusterProperties.INSTANCE.getCluster();
+        String eventHome = asterixCluster == null ? null : asterixCluster.getWorkingDir().getDir();
+
+        if (asterixCluster != null) {
+            String asterixDir = System.getProperty("user.dir") + File.separator + "asterix";
+            File configFile = new File(System.getProperty("user.dir") + File.separator + "configuration.xml");
+            Configuration configuration = null;
+
+            try {
+                JAXBContext configCtx = JAXBContext.newInstance(Configuration.class);
+                Unmarshaller unmarshaller = configCtx.createUnmarshaller();
+                configuration = (Configuration) unmarshaller.unmarshal(configFile);
+                AsterixEventService.initialize(configuration, asterixDir, eventHome);
+                client = AsterixEventService.getAsterixEventServiceClient(AsterixClusterProperties.INSTANCE
+                        .getCluster());
+
+                lookupService = ServiceProvider.INSTANCE.getLookupService();
+                if (!lookupService.isRunning(configuration)) {
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("Lookup service not running. Starting lookup service ...");
+                    }
+                    lookupService.startService(configuration);
+                } else {
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("Lookup service running");
+                    }
+                }
+
+            } catch (Exception e) {
+                throw new IllegalStateException("Unable to initialize cluster manager" + e);
+            }
+        }
+    }
+
+    @Override
+    public void addNode(Node node) throws AsterixException {
+        try {
+            Cluster cluster = AsterixClusterProperties.INSTANCE.getCluster();
+            List<Pattern> pattern = new ArrayList<Pattern>();
+            String asterixInstanceName = AsterixAppContextInfo.getInstance().getMetadataProperties().getInstanceName();
+            Patterns prepareNode = PatternCreator.INSTANCE.createPrepareNodePattern(asterixInstanceName,
+                    AsterixClusterProperties.INSTANCE.getCluster(), node);
+            cluster.getNode().add(node);
+            client.submit(prepareNode);
+
+            AsterixExternalProperties externalProps = AsterixAppContextInfo.getInstance().getExternalProperties();
+            AsterixEventServiceUtil.poulateClusterEnvironmentProperties(cluster, externalProps.getCCJavaParams(),
+                    externalProps.getNCJavaParams());
+
+            pattern.clear();
+            String ccHost = cluster.getMasterNode().getClusterIp();
+            String hostId = node.getId();
+            String nodeControllerId = asterixInstanceName + "_" + node.getId();
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            Pattern startNC = PatternCreator.INSTANCE.createNCStartPattern(ccHost, hostId, nodeControllerId, iodevices);
+            pattern.add(startNC);
+            Patterns startNCPattern = new Patterns(pattern);
+            client.submit(startNCPattern);
+
+            removeNode(cluster.getNode(), node);
+
+            AsterixInstance instance = lookupService.getAsterixInstance(cluster.getInstanceName());
+            instance.getCluster().getNode().add(node);
+            removeNode(instance.getCluster().getSubstituteNodes().getNode(), node);
+            lookupService.updateAsterixInstance(instance);
+
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    private void removeNode(List<Node> list, Node node) {
+        Node nodeToRemove = null;
+        for (Node n : list) {
+            if (n.getId().equals(node.getId())) {
+                nodeToRemove = n;
+                break;
+            }
+        }
+        if (nodeToRemove != null) {
+            list.remove(nodeToRemove);
+        }
+    }
+
+    @Override
+    public void removeNode(Node node) throws AsterixException {
+
+    }
+
+    private List<Pattern> getRemoveNodePattern(Node node) {
+        List<Pattern> pattern = new ArrayList<Pattern>();
+        return pattern;
+    }
+
+    @Override
+    public void registerSubscriber(IClusterEventsSubscriber subscriber) {
+        eventSubscribers.add(subscriber);
+    }
+
+    @Override
+    public boolean deregisterSubscriber(IClusterEventsSubscriber subscriber) {
+        return eventSubscribers.remove(subscriber);
+    }
+
+    @Override
+    public Set<IClusterEventsSubscriber> getRegisteredClusterEventSubscribers() {
+        return eventSubscribers;
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/IClusterManagementWorkResponse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/IClusterManagementWorkResponse.java
new file mode 100644
index 0000000..dfc88ac
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/IClusterManagementWorkResponse.java
@@ -0,0 +1,28 @@
+package edu.uci.ics.asterix.metadata.cluster;
+
+import edu.uci.ics.asterix.metadata.api.IClusterManagementWork;
+
+public interface IClusterManagementWorkResponse {
+
+    public enum Status {
+        IN_PROGRESS,
+        SUCCESS,
+        FAILURE
+    }
+
+    /**
+     * @return
+     */
+    public IClusterManagementWork getWork();
+
+    /**
+     * @return
+     */
+    public Status getStatus();
+
+    /**
+     * @param status
+     */
+    public void setStatus(Status status);
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWork.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWork.java
new file mode 100644
index 0000000..90683d1
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWork.java
@@ -0,0 +1,36 @@
+package edu.uci.ics.asterix.metadata.cluster;
+
+import java.util.Set;
+
+import edu.uci.ics.asterix.metadata.api.IClusterEventsSubscriber;
+
+public class RemoveNodeWork extends AbstractClusterManagementWork {
+
+    private final Set<String> nodesToBeRemoved;
+
+    @Override
+    public WorkType getClusterManagementWorkType() {
+        return WorkType.REMOVE_NODE;
+    }
+
+    public RemoveNodeWork(Set<String> nodesToBeRemoved, IClusterEventsSubscriber subscriber) {
+        super(subscriber);
+        this.nodesToBeRemoved = nodesToBeRemoved;
+    }
+
+    public Set<String> getNodesToBeRemoved() {
+        return nodesToBeRemoved;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append(WorkType.REMOVE_NODE);
+        for (String node : nodesToBeRemoved) {
+            builder.append(node + " ");
+        }
+        builder.append(" requested by " + subscriber);
+        return builder.toString();
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWorkResponse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWorkResponse.java
new file mode 100644
index 0000000..58ea05e
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/cluster/RemoveNodeWorkResponse.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.cluster;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class RemoveNodeWorkResponse extends ClusterManagementWorkResponse {
+
+    private Set<String> nodesToBeRemoved = new HashSet<String>();
+
+    public RemoveNodeWorkResponse(RemoveNodeWork w, Status status) {
+        super(w);
+        nodesToBeRemoved.addAll(w.getNodesToBeRemoved());
+    }
+
+    public boolean updateProgress(Set<String> failedNodeIds) {
+        nodesToBeRemoved.removeAll(failedNodeIds);
+        return nodesToBeRemoved.isEmpty();
+
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java
index 0b7a7d9..2a80963 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java
@@ -17,6 +17,8 @@
 import java.util.HashSet;
 import java.util.Set;
 
+import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
 /**
@@ -51,6 +53,7 @@
     private static Set<IHint> initHints() {
         Set<IHint> hints = new HashSet<IHint>();
         hints.add(new DatasetCardinalityHint());
+        hints.add(new DatasetNodegroupCardinalityHint());
         return hints;
     }
 
@@ -84,4 +87,43 @@
         }
 
     }
+
+    /**
+     * Hint representing the cardinality of nodes forming the nodegroup for the dataset.
+     */
+    public static class DatasetNodegroupCardinalityHint implements IHint {
+        public static final String NAME = "NODEGROUP_CARDINALITY";
+
+        public static final int DEFAULT = 1;
+
+        @Override
+        public String getName() {
+            return NAME;
+        }
+
+        @Override
+        public Pair<Boolean, String> validateValue(String value) {
+            boolean valid = true;
+            int intValue;
+            try {
+                intValue = Integer.parseInt(value);
+                if (intValue < 0) {
+                    return new Pair<Boolean, String>(false, "Value must be >= 0");
+                }
+                int numNodesInCluster = AsterixAppContextInfo.getInstance().getMetadataProperties().getNodeNames()
+                        .size();
+                if (numNodesInCluster < intValue) {
+                    return new Pair<Boolean, String>(false,
+                            "Value must be greater or equal to the existing number of nodes in cluster ("
+                                    + numNodesInCluster + ")");
+                }
+            } catch (NumberFormatException nfe) {
+                valid = false;
+                return new Pair<Boolean, String>(valid, "Inappropriate value");
+            }
+            return new Pair<Boolean, String>(true, null);
+        }
+
+    }
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
index d4a937d..519c831 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
@@ -16,6 +16,7 @@
 
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
+
 /**
  * Represents a hint provided as part of an AQL statement.
  */
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
index 0ed3c78..077b3f1 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
@@ -16,8 +16,11 @@
 package edu.uci.ics.asterix.metadata.declared;
 
 import java.io.IOException;
+import java.io.Serializable;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
@@ -51,12 +54,13 @@
     private IAType[] schemaTypes;
     private INodeDomain domain;
     private AqlDataSourceType datasourceType;
+    private Map<String, Serializable> properties = new HashMap<String, Serializable>();
 
     public enum AqlDataSourceType {
         INTERNAL,
         FEED,
         EXTERNAL,
-        EXTERNAL_FEED
+        EXTERNAL_FEED,
     }
 
     public AqlDataSource(AqlSourceId id, Dataset dataset, IAType itemType, AqlDataSourceType datasourceType)
@@ -92,12 +96,15 @@
         try {
             switch (dataset.getDatasetType()) {
                 case FEED:
+                    datasourceType = AqlDataSourceType.FEED;
                     initFeedDataset(itemType, dataset);
                     break;
                 case INTERNAL:
+                    datasourceType = AqlDataSourceType.INTERNAL;
                     initInternalDataset(itemType);
                     break;
                 case EXTERNAL: {
+                    datasourceType = AqlDataSourceType.EXTERNAL;
                     initExternalDataset(itemType);
                     break;
                 }
@@ -268,4 +275,12 @@
         return datasourceType;
     }
 
+    public Map<String, Serializable> getProperties() {
+        return properties;
+    }
+
+    public void setProperties(Map<String, Serializable> properties) {
+        this.properties = properties;
+    }
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
index 1ade7ef..225110c 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
@@ -37,17 +37,6 @@
 import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
-import edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory;
-import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
-import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
-import edu.uci.ics.asterix.external.adapter.factory.ITypedDatasetAdapterFactory;
-import edu.uci.ics.asterix.external.data.operator.ExternalDataScanOperatorDescriptor;
-import edu.uci.ics.asterix.external.data.operator.FeedIntakeOperatorDescriptor;
-import edu.uci.ics.asterix.external.data.operator.FeedMessageOperatorDescriptor;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
@@ -61,9 +50,25 @@
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
 import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails.FeedState;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.feeds.BuiltinFeedPolicies;
+import edu.uci.ics.asterix.metadata.feeds.ExternalDataScanOperatorDescriptor;
+import edu.uci.ics.asterix.metadata.feeds.FeedId;
+import edu.uci.ics.asterix.metadata.feeds.FeedIntakeOperatorDescriptor;
+import edu.uci.ics.asterix.metadata.feeds.FeedMessageOperatorDescriptor;
+import edu.uci.ics.asterix.metadata.feeds.FeedUtil;
+import edu.uci.ics.asterix.metadata.feeds.IAdapterFactory;
+import edu.uci.ics.asterix.metadata.feeds.IAdapterFactory.SupportedOperation;
+import edu.uci.ics.asterix.metadata.feeds.IFeedMessage;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ARecordType;
@@ -106,7 +111,7 @@
 import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
 import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 import edu.uci.ics.hyracks.algebricks.runtime.operators.std.SinkWriterRuntimeFactory;
-import edu.uci.ics.hyracks.api.context.ICCContext;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparatorFactory;
@@ -125,7 +130,6 @@
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 import edu.uci.ics.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor;
-import edu.uci.ics.hyracks.hdfs.scheduler.Scheduler;
 import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
@@ -156,6 +160,7 @@
     private boolean asyncResults;
     private ResultSetId resultSetId;
     private IResultSerializerFactoryProvider resultSerializerFactoryProvider;
+    private IHyracksClientConnection hcc;
 
     private final Dataverse defaultDataverse;
     private JobId jobId;
@@ -163,7 +168,6 @@
     private final AsterixStorageProperties storageProperties;
 
     private static final Map<String, String> adapterFactoryMapping = initializeAdapterFactoryMapping();
-    private static Scheduler hdfsScheduler;
 
     public String getPropertyValue(String propertyName) {
         return config.get(propertyName);
@@ -185,16 +189,6 @@
         this.defaultDataverse = defaultDataverse;
         this.stores = AsterixAppContextInfo.getInstance().getMetadataProperties().getStores();
         this.storageProperties = AsterixAppContextInfo.getInstance().getStorageProperties();
-        ICCContext ccContext = AsterixAppContextInfo.getInstance().getCCApplicationContext().getCCContext();
-        try {
-            if (hdfsScheduler == null) {
-                //set the singleton hdfs scheduler
-                hdfsScheduler = new Scheduler(ccContext.getClusterControllerInfo().getClientNetAddress(), ccContext
-                        .getClusterControllerInfo().getClientNetPort());
-            }
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
     }
 
     public void setJobId(JobId jobId) {
@@ -332,11 +326,15 @@
         String itemTypeName = dataset.getItemTypeName();
         IAType itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(), itemTypeName)
                 .getDatatype();
-        if (dataSource instanceof ExternalFeedDataSource) {
-            return buildFeedIntakeRuntime(jobSpec, dataset);
-        } else {
-            return buildExternalDataScannerRuntime(jobSpec, itemType,
-                    (ExternalDatasetDetails) dataset.getDatasetDetails(), NonTaggedDataFormat.INSTANCE);
+        switch (((AqlDataSource) dataSource).getDatasourceType()) {
+            case EXTERNAL_FEED:
+                return buildFeedIntakeRuntime(jobSpec, dataset, dataSource);
+            case EXTERNAL:
+                return buildExternalDataScannerRuntime(jobSpec, itemType,
+                        (ExternalDatasetDetails) dataset.getDatasetDetails(), NonTaggedDataFormat.INSTANCE);
+            default:
+                throw new IllegalStateException("Unknown aql datasource type: "
+                        + ((AqlDataSource) dataSource).getDatasourceType());
         }
     }
 
@@ -348,8 +346,7 @@
             throw new AlgebricksException("Can only scan datasets of records.");
         }
 
-        IGenericDatasetAdapterFactory adapterFactory;
-        IDatasourceAdapter adapter;
+        IAdapterFactory adapterFactory;
         String adapterName;
         DatasourceAdapter adapterEntity;
         String adapterFactoryClassname;
@@ -359,17 +356,25 @@
                     adapterName);
             if (adapterEntity != null) {
                 adapterFactoryClassname = adapterEntity.getClassname();
-                adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+                adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
             } else {
                 adapterFactoryClassname = adapterFactoryMapping.get(adapterName);
                 if (adapterFactoryClassname == null) {
                     throw new AlgebricksException(" Unknown adapter :" + adapterName);
                 }
-                adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+                adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
             }
 
-            adapter = ((IGenericDatasetAdapterFactory) adapterFactory).createAdapter(
-                    wrapProperties(datasetDetails.getProperties()), itemType);
+            Map<String, String> configuration = datasetDetails.getProperties();
+
+            switch (adapterFactory.getAdapterType()) {
+                case GENERIC:
+                    ((IGenericAdapterFactory) adapterFactory).configure(configuration, (ARecordType) itemType);
+                    break;
+                case TYPED:
+                    ((ITypedAdapterFactory) adapterFactory).configure(configuration);
+                    break;
+            }
         } catch (AlgebricksException ae) {
             throw ae;
         } catch (Exception e) {
@@ -377,21 +382,20 @@
             throw new AlgebricksException("Unable to create adapter " + e);
         }
 
-        if (!(adapter.getAdapterType().equals(IDatasourceAdapter.AdapterType.READ) || adapter.getAdapterType().equals(
-                IDatasourceAdapter.AdapterType.READ_WRITE))) {
+        if (!(adapterFactory.getSupportedOperations().equals(SupportedOperation.READ) || adapterFactory
+                .getSupportedOperations().equals(SupportedOperation.READ_WRITE))) {
             throw new AlgebricksException("external dataset adapter does not support read operation");
         }
-        ARecordType rt = (ARecordType) itemType;
 
         ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
         RecordDescriptor scannerDesc = new RecordDescriptor(new ISerializerDeserializer[] { payloadSerde });
 
-        ExternalDataScanOperatorDescriptor dataScanner = new ExternalDataScanOperatorDescriptor(jobSpec,
-                wrapPropertiesEmpty(datasetDetails.getProperties()), rt, scannerDesc, adapterFactory);
+        ExternalDataScanOperatorDescriptor dataScanner = new ExternalDataScanOperatorDescriptor(jobSpec, scannerDesc,
+                adapterFactory);
 
         AlgebricksPartitionConstraint constraint;
         try {
-            constraint = adapter.getPartitionConstraint();
+            constraint = adapterFactory.getPartitionConstraint();
         } catch (Exception e) {
             throw new AlgebricksException(e);
         }
@@ -423,11 +427,10 @@
 
     @SuppressWarnings("rawtypes")
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedIntakeRuntime(JobSpecification jobSpec,
-            Dataset dataset) throws AlgebricksException {
+            Dataset dataset, IDataSource<AqlSourceId> dataSource) throws AlgebricksException {
 
         FeedDatasetDetails datasetDetails = (FeedDatasetDetails) dataset.getDatasetDetails();
         DatasourceAdapter adapterEntity;
-        IDatasourceAdapter adapter;
         IAdapterFactory adapterFactory;
         IAType adapterOutputType;
         String adapterName;
@@ -444,28 +447,28 @@
                 adapterFactoryClassname = adapterFactoryMapping.get(adapterName);
                 if (adapterFactoryClassname != null) {
                 } else {
-                    // adapterName has been provided as a fully qualified
-                    // classname
                     adapterFactoryClassname = adapterName;
                 }
                 adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
             }
 
-            if (adapterFactory instanceof ITypedDatasetAdapterFactory) {
-                adapter = ((ITypedDatasetAdapterFactory) adapterFactory).createAdapter(wrapProperties(datasetDetails
-                        .getProperties()));
-                adapterOutputType = ((ITypedDatasourceAdapter) adapter).getAdapterOutputType();
-            } else if (adapterFactory instanceof IGenericDatasetAdapterFactory) {
-                String outputTypeName = datasetDetails.getProperties().get(IGenericDatasetAdapterFactory.KEY_TYPE_NAME);
-                adapterOutputType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(),
-                        outputTypeName).getDatatype();
-                adapter = ((IGenericDatasetAdapterFactory) adapterFactory).createAdapter(
-                        wrapProperties(datasetDetails.getProperties()), adapterOutputType);
-            } else {
-                throw new IllegalStateException(" Unknown factory type for " + adapterFactoryClassname);
+            //Map<String, Object> configuration = this.wrapProperties(datasetDetails.getProperties());
+            Map<String, String> configuration = datasetDetails.getProperties();
+
+            switch (adapterFactory.getAdapterType()) {
+                case TYPED:
+                    adapterOutputType = ((ITypedAdapterFactory) adapterFactory).getAdapterOutputType();
+                    ((ITypedAdapterFactory) adapterFactory).configure(configuration);
+                    break;
+                case GENERIC:
+                    String outputTypeName = datasetDetails.getProperties().get("output-type-name");
+                    adapterOutputType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(),
+                            outputTypeName).getDatatype();
+                    ((IGenericAdapterFactory) adapterFactory).configure(configuration, (ARecordType) adapterOutputType);
+                    break;
+                default:
+                    throw new IllegalStateException(" Unknown factory type for " + adapterFactoryClassname);
             }
-        } catch (AlgebricksException ae) {
-            throw ae;
         } catch (Exception e) {
             e.printStackTrace();
             throw new AlgebricksException("unable to create adapter  " + e);
@@ -475,14 +478,17 @@
                 .getSerializerDeserializer(adapterOutputType);
         RecordDescriptor feedDesc = new RecordDescriptor(new ISerializerDeserializer[] { payloadSerde });
 
+        FeedPolicy feedPolicy = (FeedPolicy) ((AqlDataSource) dataSource).getProperties().get(
+                BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY);
+
+        feedPolicy.getProperties().put(BuiltinFeedPolicies.CONFIG_FEED_POLICY_KEY, feedPolicy.getPolicyName());
         FeedIntakeOperatorDescriptor feedIngestor = new FeedIntakeOperatorDescriptor(jobSpec, new FeedId(
-                dataset.getDataverseName(), dataset.getDatasetName()), adapterFactoryClassname,
-                this.wrapPropertiesEmpty(datasetDetails.getProperties()), (ARecordType) adapterOutputType, feedDesc,
-                adapterFactory);
+                dataset.getDataverseName(), dataset.getDatasetName()), adapterFactory, (ARecordType) adapterOutputType,
+                feedDesc, feedPolicy.getProperties());
 
         AlgebricksPartitionConstraint constraint = null;
         try {
-            constraint = adapter.getPartitionConstraint();
+            constraint = adapterFactory.getPartitionConstraint();
         } catch (Exception e) {
             throw new AlgebricksException(e);
         }
@@ -491,12 +497,13 @@
 
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedMessengerRuntime(
             AqlMetadataProvider metadataProvider, JobSpecification jobSpec, FeedDatasetDetails datasetDetails,
-            String dataverse, String dataset, List<IFeedMessage> feedMessages) throws AlgebricksException {
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc = metadataProvider
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverse, dataset, dataset);
+            String dataverse, String dataset, IFeedMessage feedMessage, FeedActivity feedActivity)
+            throws AlgebricksException {
+        AlgebricksPartitionConstraint partitionConstraint = new AlgebricksAbsolutePartitionConstraint(feedActivity
+                .getFeedActivityDetails().get(FeedActivityDetails.INGEST_LOCATIONS).split(","));
         FeedMessageOperatorDescriptor feedMessenger = new FeedMessageOperatorDescriptor(jobSpec, dataverse, dataset,
-                feedMessages);
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(feedMessenger, spPc.second);
+                feedMessage);
+        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(feedMessenger, partitionConstraint);
     }
 
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildBtreeRuntime(JobSpecification jobSpec,
@@ -1505,6 +1512,14 @@
         return type.getDatatype();
     }
 
+    public FeedPolicy findFeedPolicy(String dataverse, String policyName) throws AlgebricksException {
+        try {
+            return MetadataManager.INSTANCE.getFeedPolicy(mdTxnCtx, dataverse, policyName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
     public List<Index> getDatasetIndexes(String dataverseName, String datasetName) throws AlgebricksException {
         try {
             return MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
@@ -1543,8 +1558,8 @@
     private Map<String, Object> wrapProperties(Map<String, String> properties) {
         Map<String, Object> wrappedProperties = new HashMap<String, Object>();
         wrappedProperties.putAll(properties);
-        wrappedProperties.put(HDFSAdapterFactory.SCHEDULER, hdfsScheduler);
-        wrappedProperties.put(HDFSAdapterFactory.CLUSTER_LOCATIONS, getClusterLocations());
+        //wrappedProperties.put(SCHEDULER, hdfsScheduler);
+        //wrappedProperties.put(CLUSTER_LOCATIONS, getClusterLocations());
         return wrappedProperties;
     }
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
index 3e61ec5..0827f09 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
@@ -18,6 +18,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
 
+
 public class FileSplitDataSink implements IDataSink {
 
     private FileSplitSinkId id;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
index 5801002..9ca7291 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
@@ -17,6 +17,7 @@
 
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
+
 public class FileSplitSinkId {
 
     private FileSplit fileSplit;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
index 3fd9285..50c6225 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
@@ -20,6 +20,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ResultSetDomain;
 
+
 public class ResultSetDataSink implements IDataSink {
 
     private ResultSetSinkId id;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
index 99d026b..4fa3907 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
@@ -16,6 +16,7 @@
 
 import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 
+
 public class ResultSetSinkId {
 
     private final ResultSetId resultSetId;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java
index 3c72084..621933f 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java
@@ -14,12 +14,14 @@
  */
 package edu.uci.ics.asterix.metadata.entities;
 
-import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.MetadataCache;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.metadata.feeds.AdapterIdentifier;
 
 public class DatasourceAdapter implements IMetadataEntity {
 
+    private static final long serialVersionUID = 1L;
+
     public enum AdapterType {
         INTERNAL,
         EXTERNAL
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedActivity.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedActivity.java
new file mode 100644
index 0000000..8e6dab3
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedActivity.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entities;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.metadata.MetadataCache;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+
+/**
+ * Metadata describing a feed activity record.
+ */
+public class FeedActivity implements IMetadataEntity, Comparable<FeedActivity> {
+
+    private static final long serialVersionUID = 1L;
+
+    private int activityId;
+
+    private final String dataverseName;
+    // Enforced to be unique within a dataverse.
+    private final String datasetName;
+
+    private String lastUpdatedTimestamp;
+    private FeedActivityType activityType;
+    private Map<String, String> feedActivityDetails;
+
+    public static enum FeedActivityType {
+        FEED_BEGIN,
+        FEED_END,
+        FEED_FAILURE,
+        FEED_RECOVERY,
+        FEED_RESUME,
+        FEED_STATS,
+        FEED_EXPAND,
+        FEED_SHRINK
+    }
+
+    public static class FeedActivityDetails {
+        public static final String COMPUTE_LOCATIONS = "compute-locations";
+        public static final String INGEST_LOCATIONS = "ingest-locations";
+        public static final String STORAGE_LOCATIONS = "storage-locations";
+        public static final String TOTAL_INGESTED = "total-ingested";
+        public static final String INGESTION_RATE = "ingestion-rate";
+        public static final String EXCEPTION_LOCATION = "exception-location";
+        public static final String EXCEPTION_MESSAGE = "exception-message";
+        public static final String FEED_POLICY_NAME = "feed-policy-name";
+        public static final String FEED_NODE_FAILURE = "feed-node-failure";
+
+    }
+
+    public FeedActivity(String dataverseName, String datasetName, FeedActivityType feedActivityType,
+            Map<String, String> feedActivityDetails) {
+        this.dataverseName = dataverseName;
+        this.datasetName = datasetName;
+        this.activityType = feedActivityType;
+        this.feedActivityDetails = feedActivityDetails;
+    }
+
+    public String getDataverseName() {
+        return dataverseName;
+    }
+
+    public String getDatasetName() {
+        return datasetName;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addFeedActivityIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropFeedActivity(this);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof FeedActivity)) {
+            return false;
+        }
+        FeedActivity otherDataset = (FeedActivity) other;
+        if (!otherDataset.dataverseName.equals(dataverseName)) {
+            return false;
+        }
+        if (!otherDataset.datasetName.equals(datasetName)) {
+            return false;
+        }
+        return true;
+    }
+
+    public FeedActivityType getFeedActivityType() {
+        return activityType;
+    }
+
+    public void setFeedActivityType(FeedActivityType feedActivityType) {
+        this.activityType = feedActivityType;
+    }
+
+    public String getLastUpdatedTimestamp() {
+        return lastUpdatedTimestamp;
+    }
+
+    public void setLastUpdatedTimestamp(String lastUpdatedTimestamp) {
+        this.lastUpdatedTimestamp = lastUpdatedTimestamp;
+    }
+
+    public int getActivityId() {
+        return activityId;
+    }
+
+    public void setActivityId(int activityId) {
+        this.activityId = activityId;
+    }
+
+    public Map<String, String> getFeedActivityDetails() {
+        return feedActivityDetails;
+    }
+
+    public void setFeedActivityDetails(Map<String, String> feedActivityDetails) {
+        this.feedActivityDetails = feedActivityDetails;
+    }
+
+    public FeedActivityType getActivityType() {
+        return activityType;
+    }
+
+    public void setActivityType(FeedActivityType activityType) {
+        this.activityType = activityType;
+    }
+
+    @Override
+    public int compareTo(FeedActivity o) {
+        return o.getActivityId() - this.activityId;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
index 22de3d3..e2268bf 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
@@ -47,26 +47,25 @@
     private final String adapterFactory;
     private final Map<String, String> properties;
     private final FunctionSignature signature;
-    private FeedState feedState;
 
     public enum FeedState {
-        INACTIVE,
         // INACTIVE state signifies that the feed dataset is not
         // connected with the external world through the feed
         // adapter.
-        ACTIVE
+        INACTIVE,
+
         // ACTIVE state signifies that the feed dataset is connected to the
         // external world using an adapter that may put data into the dataset.
+        ACTIVE
     }
 
     public FeedDatasetDetails(FileStructure fileStructure, PartitioningStrategy partitioningStrategy,
             List<String> partitioningKey, List<String> primaryKey, String groupName, String adapterFactory,
-            Map<String, String> properties, FunctionSignature signature, String feedState) {
+            Map<String, String> properties, FunctionSignature signature) {
         super(fileStructure, partitioningStrategy, partitioningKey, primaryKey, groupName);
         this.properties = properties;
         this.adapterFactory = adapterFactory;
         this.signature = signature;
-        this.feedState = feedState.equals(FeedState.ACTIVE.toString()) ? FeedState.ACTIVE : FeedState.INACTIVE;
     }
 
     @Override
@@ -154,12 +153,6 @@
             feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX, fieldValue);
         }
 
-        // write field 8
-        fieldValue.reset();
-        aString.setValue(getFeedState().toString());
-        stringSerde.serialize(aString, fieldValue.getDataOutput());
-        feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_STATE_FIELD_INDEX, fieldValue);
-
         try {
             feedRecordBuilder.write(out, true);
         } catch (IOException | AsterixException e) {
@@ -195,14 +188,6 @@
         }
     }
 
-    public FeedState getFeedState() {
-        return feedState;
-    }
-
-    public void setFeedState(FeedState feedState) {
-        this.feedState = feedState;
-    }
-
     public String getAdapterFactory() {
         return adapterFactory;
     }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedPolicy.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedPolicy.java
new file mode 100644
index 0000000..b011e5c
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedPolicy.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entities;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.metadata.MetadataCache;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+
+/**
+ * Metadata describing a feed activity record.
+ */
+public class FeedPolicy implements IMetadataEntity {
+
+    private static final long serialVersionUID = 1L;
+
+    private final String dataverseName;
+    // Enforced to be unique within a dataverse.
+    private final String policyName;
+    // A description of the policy
+    private final String description;
+    // The policy properties associated with the feed dataset
+    private Map<String, String> properties;
+
+    public FeedPolicy(String dataverseName, String policyName, String description, Map<String, String> properties) {
+        this.dataverseName = dataverseName;
+        this.policyName = policyName;
+        this.description = description;
+        this.properties = properties;
+    }
+
+    public String getDataverseName() {
+        return dataverseName;
+    }
+
+    public String getPolicyName() {
+        return policyName;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof FeedPolicy)) {
+            return false;
+        }
+        FeedPolicy otherPolicy = (FeedPolicy) other;
+        if (!otherPolicy.dataverseName.equals(dataverseName)) {
+            return false;
+        }
+        if (!otherPolicy.policyName.equals(policyName)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public Map<String, String> getProperties() {
+        return properties;
+    }
+
+    public void setProperties(Map<String, String> properties) {
+        this.properties = properties;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Library.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Library.java
new file mode 100644
index 0000000..a341ba9
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Library.java
@@ -0,0 +1,36 @@
+package edu.uci.ics.asterix.metadata.entities;
+
+import edu.uci.ics.asterix.metadata.MetadataCache;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+
+public class Library implements IMetadataEntity {
+
+    private static final long serialVersionUID = 1L;
+
+    private final String dataverse;
+    private final String name;
+
+    public Library(String dataverseName, String libraryName) {
+        this.dataverse = dataverseName;
+        this.name = libraryName;
+    }
+
+    public String getDataverseName() {
+        return dataverse;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addLibraryIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropLibrary(this);
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
index dc8c390..a85787f 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
@@ -20,6 +20,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntityTupleTranslator;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.types.BuiltinType;
@@ -40,6 +41,10 @@
     @SuppressWarnings("unchecked")
     protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT32);
+
     protected final IARecordBuilder recordBuilder;
     protected final ArrayBackedValueStorage fieldValue;
     protected final ArrayTupleBuilder tupleBuilder;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
index 61f856a..9ba5848 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
@@ -138,9 +138,9 @@
                 String value;
                 while (cursor.next()) {
                     ARecord field = (ARecord) cursor.get();
-                    key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
+                    key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX))
                             .getStringValue();
-                    value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
+                    value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX))
                             .getStringValue();
                     properties.put(key, value);
                 }
@@ -166,11 +166,8 @@
                             Integer.parseInt(nameComponents[1]));
                 }
 
-                String feedState = ((AString) datasetDetailsRecord
-                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_STATE_FIELD_INDEX)).getStringValue();
-
                 datasetDetails = new FeedDatasetDetails(fileStructure, partitioningStrategy, partitioningKey,
-                        partitioningKey, groupName, adapter, properties, signature, feedState);
+                        partitioningKey, groupName, adapter, properties, signature);
                 break;
             }
             case INTERNAL: {
@@ -213,18 +210,19 @@
                 String value;
                 while (cursor.next()) {
                     ARecord field = (ARecord) cursor.get();
-                    key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
+                    key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX))
                             .getStringValue();
-                    value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
+                    value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX))
                             .getStringValue();
                     properties.put(key, value);
                 }
                 datasetDetails = new ExternalDatasetDetails(adapter, properties);
         }
-        
+
         Map<String, String> hints = getDatasetHints(datasetRecord);
-        
-        return new Dataset(dataverseName, datasetName, typeName, datasetDetails, hints, datasetType, datasetId, pendingOp);
+
+        return new Dataset(dataverseName, datasetName, typeName, datasetDetails, hints, datasetType, datasetId,
+                pendingOp);
     }
 
     @Override
@@ -343,9 +341,9 @@
         IACursor cursor = list.getCursor();
         while (cursor.next()) {
             ARecord field = (ARecord) cursor.get();
-            key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
+            key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX))
                     .getStringValue();
-            value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
+            value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX))
                     .getStringValue();
             hints.put(key, value);
         }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java
index 4a5e4dcf..e93fd97 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java
@@ -22,13 +22,13 @@
 import java.util.Calendar;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter.AdapterType;
+import edu.uci.ics.asterix.metadata.feeds.AdapterIdentifier;
 import edu.uci.ics.asterix.om.base.ARecord;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedActivityTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedActivityTupleTranslator.java
new file mode 100644
index 0000000..51678dc2
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedActivityTupleTranslator.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entitytupletranslators;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.asterix.builders.IARecordBuilder;
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.AUnorderedList;
+import edu.uci.ics.asterix.om.base.IACursor;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+/**
+ * Translates a Dataset metadata entity to an ITupleReference and vice versa.
+ */
+public class FeedActivityTupleTranslator extends AbstractTupleTranslator<FeedActivity> {
+    // Field indexes of serialized FeedActivity in a tuple.
+    // Key field.
+    public static final int FEED_ACTIVITY_ACTIVITY_DATAVERSE_NAME_FIELD_INDEX = 0;
+
+    public static final int FEED_ACTIVITY_ACTIVITY_DATASET_NAME_FIELD_INDEX = 1;
+
+    public static final int FEED_ACTIVITY_ACTIVITY_ID_FIELD_INDEX = 2;
+
+    // Payload field containing serialized FeedActivity.
+    public static final int FEED_ACTIVITY_PAYLOAD_TUPLE_FIELD_INDEX = 3;
+
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.FEED_ACTIVITY_RECORDTYPE);
+    private AMutableInt32 aInt32;
+    protected ISerializerDeserializer<AInt32> aInt32Serde;
+
+    @SuppressWarnings("unchecked")
+    public FeedActivityTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.FEED_ACTIVITY_DATASET.getFieldCount());
+        aInt32 = new AMutableInt32(-1);
+        aInt32Serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
+    }
+
+    @Override
+    public FeedActivity getMetadataEntytiFromTuple(ITupleReference frameTuple) throws IOException {
+        byte[] serRecord = frameTuple.getFieldData(FEED_ACTIVITY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = frameTuple.getFieldStart(FEED_ACTIVITY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = frameTuple.getFieldLength(FEED_ACTIVITY_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord feedActivityRecord = (ARecord) recordSerDes.deserialize(in);
+        return createFeedActivityFromARecord(feedActivityRecord);
+    }
+
+    private FeedActivity createFeedActivityFromARecord(ARecord feedActivityRecord) {
+
+        String dataverseName = ((AString) feedActivityRecord
+                .getValueByPos(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DATAVERSE_NAME_FIELD_INDEX)).getStringValue();
+        String datasetName = ((AString) feedActivityRecord
+                .getValueByPos(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DATASET_NAME_FIELD_INDEX)).getStringValue();
+        int activityId = ((AInt32) feedActivityRecord
+                .getValueByPos(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_ACTIVITY_ID_FIELD_INDEX)).getIntegerValue();
+        String feedActivityType = ((AString) feedActivityRecord
+                .getValueByPos(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_ACTIVITY_TYPE_FIELD_INDEX)).getStringValue();
+
+        IACursor cursor = ((AUnorderedList) feedActivityRecord
+                .getValueByPos(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DETAILS_FIELD_INDEX)).getCursor();
+        Map<String, String> activityDetails = new HashMap<String, String>();
+        String key;
+        String value;
+        while (cursor.next()) {
+            ARecord field = (ARecord) cursor.get();
+            key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX)).getStringValue();
+            value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX)).getStringValue();
+            activityDetails.put(key, value);
+        }
+
+        FeedActivity fa = new FeedActivity(dataverseName, datasetName, FeedActivityType.valueOf(feedActivityType),
+                activityDetails);
+        fa.setActivityId(activityId);
+        return fa;
+    }
+
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(FeedActivity feedActivity) throws IOException, MetadataException {
+        // write the key in the first three fields of the tuple
+        ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
+
+        tupleBuilder.reset();
+        aString.setValue(feedActivity.getDataverseName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        aString.setValue(feedActivity.getDatasetName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        aInt32.setValue(feedActivity.getActivityId());
+        int32Serde.serialize(aInt32, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        // write the pay-load in the 2nd field of the tuple
+
+        recordBuilder.reset(MetadataRecordTypes.FEED_ACTIVITY_RECORDTYPE);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(feedActivity.getDataverseName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DATAVERSE_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(feedActivity.getDatasetName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DATASET_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 2
+        fieldValue.reset();
+        aInt32.setValue(feedActivity.getActivityId());
+        int32Serde.serialize(aInt32, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_ACTIVITY_ID_FIELD_INDEX, fieldValue);
+
+        // write field 3
+        fieldValue.reset();
+        aString.setValue(feedActivity.getFeedActivityType().name());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_ACTIVITY_TYPE_FIELD_INDEX, fieldValue);
+
+        // write field 4
+        fieldValue.reset();
+        aString.setValue(Calendar.getInstance().getTime().toString());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_LAST_UPDATE_TIMESTAMP_FIELD_INDEX, fieldValue);
+
+        // write field 5
+        Map<String, String> properties = feedActivity.getFeedActivityDetails();
+        UnorderedListBuilder listBuilder = new UnorderedListBuilder();
+        listBuilder
+                .reset((AUnorderedListType) MetadataRecordTypes.FEED_ACTIVITY_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DETAILS_FIELD_INDEX]);
+        for (Map.Entry<String, String> property : properties.entrySet()) {
+            String name = property.getKey();
+            String value = property.getValue();
+            itemValue.reset();
+            writePropertyTypeRecord(name, value, itemValue.getDataOutput());
+            listBuilder.addItem(itemValue);
+        }
+        fieldValue.reset();
+        listBuilder.write(fieldValue.getDataOutput(), true);
+        recordBuilder.addField(MetadataRecordTypes.FEED_ACTIVITY_ARECORD_DETAILS_FIELD_INDEX, fieldValue);
+
+        // write record
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+        tupleBuilder.addFieldEndOffset();
+
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
+
+    public void writePropertyTypeRecord(String name, String value, DataOutput out) throws HyracksDataException {
+        IARecordBuilder propertyRecordBuilder = new RecordBuilder();
+        ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
+        propertyRecordBuilder.reset(MetadataRecordTypes.FEED_ACTIVITY_DETAILS_RECORDTYPE);
+        AMutableString aString = new AMutableString("");
+        ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ASTRING);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(name);
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        propertyRecordBuilder.addField(0, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(value);
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        propertyRecordBuilder.addField(1, fieldValue);
+
+        try {
+            propertyRecordBuilder.write(out, true);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedPolicyTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedPolicyTupleTranslator.java
new file mode 100644
index 0000000..57d2d1c
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FeedPolicyTupleTranslator.java
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entitytupletranslators;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.builders.IARecordBuilder;
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.AUnorderedList;
+import edu.uci.ics.asterix.om.base.IACursor;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+/**
+ * Translates a Dataset metadata entity to an ITupleReference and vice versa.
+ */
+public class FeedPolicyTupleTranslator extends AbstractTupleTranslator<FeedPolicy> {
+    // Field indexes of serialized FeedPolicy in a tuple.
+    // Key field.
+    public static final int FEED_POLICY_DATAVERSE_NAME_FIELD_INDEX = 0;
+
+    public static final int FEED_POLICY_POLICY_NAME_FIELD_INDEX = 1;
+
+    // Payload field containing serialized feedPolicy.
+    public static final int FEED_POLICY_PAYLOAD_TUPLE_FIELD_INDEX = 2;
+
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.FEED_POLICY_RECORDTYPE);
+    private AMutableInt32 aInt32;
+    protected ISerializerDeserializer<AInt32> aInt32Serde;
+
+    @SuppressWarnings("unchecked")
+    public FeedPolicyTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.FEED_POLICY_DATASET.getFieldCount());
+        aInt32 = new AMutableInt32(-1);
+        aInt32Serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
+    }
+
+    @Override
+    public FeedPolicy getMetadataEntytiFromTuple(ITupleReference frameTuple) throws IOException {
+        byte[] serRecord = frameTuple.getFieldData(FEED_POLICY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = frameTuple.getFieldStart(FEED_POLICY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = frameTuple.getFieldLength(FEED_POLICY_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord feedPolicyRecord = (ARecord) recordSerDes.deserialize(in);
+        return createFeedPolicyFromARecord(feedPolicyRecord);
+    }
+
+    private FeedPolicy createFeedPolicyFromARecord(ARecord feedPolicyRecord) {
+        FeedPolicy feedPolicy = null;
+        String dataverseName = ((AString) feedPolicyRecord
+                .getValueByPos(MetadataRecordTypes.FEED_POLICY_ARECORD_DATAVERSE_NAME_FIELD_INDEX)).getStringValue();
+        String policyName = ((AString) feedPolicyRecord
+                .getValueByPos(MetadataRecordTypes.FEED_POLICY_ARECORD_POLICY_NAME_FIELD_INDEX)).getStringValue();
+
+        String description = ((AString) feedPolicyRecord
+                .getValueByPos(MetadataRecordTypes.FEED_POLICY_ARECORD_DESCRIPTION_FIELD_INDEX)).getStringValue();
+
+        IACursor cursor = ((AUnorderedList) feedPolicyRecord
+                .getValueByPos(MetadataRecordTypes.FEED_POLICY_ARECORD_PROPERTIES_FIELD_INDEX)).getCursor();
+        Map<String, String> policyParamters = new HashMap<String, String>();
+        String key;
+        String value;
+        while (cursor.next()) {
+            ARecord field = (ARecord) cursor.get();
+            key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX)).getStringValue();
+            value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX)).getStringValue();
+            policyParamters.put(key, value);
+        }
+
+        feedPolicy = new FeedPolicy(dataverseName, policyName, description, policyParamters);
+        return feedPolicy;
+    }
+
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(FeedPolicy feedPolicy) throws IOException, MetadataException {
+        // write the key in the first three fields of the tuple
+        ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
+
+        tupleBuilder.reset();
+        aString.setValue(feedPolicy.getDataverseName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        aString.setValue(feedPolicy.getPolicyName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        recordBuilder.reset(MetadataRecordTypes.FEED_POLICY_RECORDTYPE);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(feedPolicy.getDataverseName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_POLICY_ARECORD_DATAVERSE_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(feedPolicy.getPolicyName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_POLICY_ARECORD_POLICY_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 2
+        fieldValue.reset();
+        aString.setValue(feedPolicy.getDescription());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FEED_POLICY_ARECORD_POLICY_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 3 (properties)
+        Map<String, String> properties = feedPolicy.getProperties();
+        UnorderedListBuilder listBuilder = new UnorderedListBuilder();
+        listBuilder
+                .reset((AUnorderedListType) MetadataRecordTypes.FEED_POLICY_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.FEED_POLICY_ARECORD_PROPERTIES_FIELD_INDEX]);
+        for (Map.Entry<String, String> property : properties.entrySet()) {
+            String name = property.getKey();
+            String value = property.getValue();
+            itemValue.reset();
+            writePropertyTypeRecord(name, value, itemValue.getDataOutput());
+            listBuilder.addItem(itemValue);
+        }
+        fieldValue.reset();
+        listBuilder.write(fieldValue.getDataOutput(), true);
+        recordBuilder.addField(MetadataRecordTypes.FEED_POLICY_ARECORD_PROPERTIES_FIELD_INDEX, fieldValue);
+
+        // write record
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+        tupleBuilder.addFieldEndOffset();
+
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
+
+    public void writePropertyTypeRecord(String name, String value, DataOutput out) throws HyracksDataException {
+        IARecordBuilder propertyRecordBuilder = new RecordBuilder();
+        ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
+        propertyRecordBuilder.reset(MetadataRecordTypes.POLICY_PARAMS_RECORDTYPE);
+        AMutableString aString = new AMutableString("");
+        ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ASTRING);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(name);
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        propertyRecordBuilder.addField(0, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(value);
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        propertyRecordBuilder.addField(1, fieldValue);
+
+        try {
+            propertyRecordBuilder.write(out, true);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/LibraryTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/LibraryTupleTranslator.java
new file mode 100644
index 0000000..4bd2366
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/LibraryTupleTranslator.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entitytupletranslators;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.Calendar;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
+import edu.uci.ics.asterix.metadata.entities.Library;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+/**
+ * Translates a Library metadata entity to an ITupleReference and vice versa.
+ */
+public class LibraryTupleTranslator extends AbstractTupleTranslator<Library> {
+    // Field indexes of serialized Library in a tuple.
+    // First key field.
+    public static final int LIBRARY_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
+    // Second key field.
+    public static final int LIBRARY_NAME_TUPLE_FIELD_INDEX = 1;
+
+    // Payload field containing serialized Library.
+    public static final int LIBRARY_PAYLOAD_TUPLE_FIELD_INDEX = 2;
+
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.LIBRARY_RECORDTYPE);
+
+    public LibraryTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.LIBRARY_DATASET.getFieldCount());
+    }
+
+    @Override
+    public Library getMetadataEntytiFromTuple(ITupleReference frameTuple) throws IOException {
+        byte[] serRecord = frameTuple.getFieldData(LIBRARY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = frameTuple.getFieldStart(LIBRARY_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = frameTuple.getFieldLength(LIBRARY_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord libraryRecord = (ARecord) recordSerDes.deserialize(in);
+        return createLibraryFromARecord(libraryRecord);
+    }
+
+    private Library createLibraryFromARecord(ARecord libraryRecord) {
+        String dataverseName = ((AString) libraryRecord
+                .getValueByPos(MetadataRecordTypes.LIBRARY_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
+        String libraryName = ((AString) libraryRecord
+                .getValueByPos(MetadataRecordTypes.LIBRARY_ARECORD_NAME_FIELD_INDEX)).getStringValue();
+
+        return new Library(dataverseName, libraryName);
+    }
+
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(Library library) throws IOException, MetadataException {
+        // write the key in the first 2 fields of the tuple
+        tupleBuilder.reset();
+        aString.setValue(library.getDataverseName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(library.getName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        // write the pay-load in the third field of the tuple
+
+        recordBuilder.reset(MetadataRecordTypes.LIBRARY_RECORDTYPE);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(library.getDataverseName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.LIBRARY_ARECORD_DATAVERSENAME_FIELD_INDEX, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(library.getName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.LIBRARY_ARECORD_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 2
+        fieldValue.reset();
+        aString.setValue(Calendar.getInstance().getTime().toString());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.LIBRARY_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
+
+        // write record
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+        tupleBuilder.addFieldEndOffset();
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractDatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractDatasourceAdapter.java
new file mode 100644
index 0000000..9e8e5f7
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractDatasourceAdapter.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * Represents the base class that is required to be extended by every
+ * implementation of the IDatasourceAdapter interface.
+ */
+public abstract class AbstractDatasourceAdapter implements IDatasourceAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    protected Map<String, Object> configuration;
+    protected transient AlgebricksPartitionConstraint partitionConstraint;
+    protected IAType atype;
+    protected IHyracksTaskContext ctx;
+
+    protected static final Map<String, Object> formatToParserFactoryMap = initializeFormatParserFactoryMap();
+
+    public static final String KEY_FORMAT = "format";
+    public static final String KEY_PARSER_FACTORY = "parser";
+    public static final String FORMAT_DELIMITED_TEXT = "delimited-text";
+    public static final String FORMAT_ADM = "adm";
+
+    private static Map<String, Object> initializeFormatParserFactoryMap() {
+        Map<String, Object> map = new HashMap<String, Object>();
+        map.put(FORMAT_DELIMITED_TEXT, "edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory");
+        map.put(FORMAT_ADM, "edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory");
+        return map;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java
new file mode 100644
index 0000000..96dc8dc
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java
@@ -0,0 +1,106 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.rmi.RemoteException;
+import java.util.HashMap;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+
+public abstract class AbstractFeedDatasourceAdapter implements IDatasourceAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    private int batchPersistSize = 10;
+    protected FeedPolicyEnforcer policyEnforcer;
+    protected StatisticsCollector collector;
+    protected Timer timer;
+
+    public FeedPolicyEnforcer getPolicyEnforcer() {
+        return policyEnforcer;
+    }
+
+    public void setFeedPolicyEnforcer(FeedPolicyEnforcer policyEnforcer) {
+        this.policyEnforcer = policyEnforcer;
+        FeedPolicyAccessor policyAccessor = this.policyEnforcer.getFeedPolicyAccessor();
+        if (policyAccessor.collectStatistics()) {
+            long period = policyAccessor.getStatisicsCollectionPeriodInSecs();
+            collector = new StatisticsCollector(this, policyEnforcer.getFeedId(), period, batchPersistSize);
+            timer = new Timer();
+            timer.schedule(collector, period * 1000, period * 1000);
+        }
+    }
+
+    public abstract long getIngestedRecordsCount();
+
+    protected void dumpStatistics() throws RemoteException, ACIDException {
+        collector.persistStatistics(true);
+    }
+
+    private static class StatisticsCollector extends TimerTask {
+
+        private final AbstractFeedDatasourceAdapter adapter;
+        private final FeedId feedId;
+        //   private List<Long> previousCountValues = new ArrayList<Long>();
+        //   private List<Integer> ingestionRates = new ArrayList<Integer>();
+        private final long period;
+        private FeedActivity feedActivity;
+        private int numMeasurements = 0;
+        private int batchPersistSize;
+        private StringBuilder count = new StringBuilder();
+        private StringBuilder rate = new StringBuilder();
+        private long previousCount = 0;
+
+        public StatisticsCollector(AbstractFeedDatasourceAdapter adapter, FeedId feedId, long period,
+                int batchPersistSize) {
+            this.adapter = adapter;
+            this.feedId = feedId;
+            this.period = period;
+            this.batchPersistSize = batchPersistSize;
+            this.feedActivity = new FeedActivity(feedId.getDataverse(), feedId.getDataset(),
+                    FeedActivityType.FEED_STATS, new HashMap<String, String>());
+        }
+
+        @Override
+        public void run() {
+            try {
+                persistStatistics(false);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+        }
+
+        public void persistStatistics(boolean force) throws RemoteException, ACIDException {
+            MetadataTransactionContext ctx = null;
+            try {
+                long currentCount = adapter.getIngestedRecordsCount();
+                long diff = (currentCount - previousCount);
+                count.append(currentCount + ",");
+                rate.append(new Double(diff / period).intValue() + ",");
+                feedActivity.getFeedActivityDetails().put(FeedActivityDetails.INGESTION_RATE, "" + rate.toString());
+                feedActivity.getFeedActivityDetails().put(FeedActivityDetails.TOTAL_INGESTED, "" + count.toString());
+                numMeasurements++;
+                if (numMeasurements == batchPersistSize || force) {
+                    numMeasurements = 0;
+                    ctx = MetadataManager.INSTANCE.beginTransaction();
+                    MetadataManager.INSTANCE.registerFeedActivity(ctx, feedId, feedActivity);
+                    MetadataManager.INSTANCE.commitTransaction(ctx);
+                    count.delete(0, count.length() - 1);
+                    rate.delete(0, rate.length() - 1);
+                }
+                previousCount = currentCount;
+            } catch (Exception e) {
+                if (ctx != null) {
+                    MetadataManager.INSTANCE.abortTransaction(ctx);
+                }
+            }
+        }
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterIdentifier.java
similarity index 96%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterIdentifier.java
index f6164ea..897faae 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterIdentifier.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.dataset.adapter;
+package edu.uci.ics.asterix.metadata.feeds;
 
 import java.io.Serializable;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterRuntimeManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterRuntimeManager.java
new file mode 100644
index 0000000..78daa08
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AdapterRuntimeManager.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.api.AsterixThreadExecutor;
+import edu.uci.ics.asterix.metadata.feeds.MaterializingFrameWriter.Mode;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class AdapterRuntimeManager implements IAdapterExecutor {
+
+    private static final Logger LOGGER = Logger.getLogger(AdapterRuntimeManager.class.getName());
+
+    private final FeedId feedId;
+
+    private IFeedAdapter feedAdapter;
+
+    private AdapterExecutor adapterExecutor;
+
+    private Thread adapterRuntime;
+
+    private State state;
+
+    private FeedInboxMonitor feedInboxMonitor;
+
+    public enum State {
+        ACTIVE_INGESTION,
+        INACTIVE_INGESTION,
+        FINISHED_INGESTION
+    }
+
+    public AdapterRuntimeManager(FeedId feedId, IFeedAdapter feedAdapter, MaterializingFrameWriter writer,
+            int partition, LinkedBlockingQueue<IFeedMessage> inbox) {
+        this.feedId = feedId;
+        this.feedAdapter = feedAdapter;
+        this.adapterExecutor = new AdapterExecutor(partition, writer, feedAdapter, this);
+        this.adapterRuntime = new Thread(adapterExecutor);
+        this.feedInboxMonitor = new FeedInboxMonitor(this, inbox, partition);
+        AsterixThreadExecutor.INSTANCE.execute(feedInboxMonitor);
+    }
+
+    @Override
+    public void start() throws Exception {
+        state = State.ACTIVE_INGESTION;
+        FeedManager.INSTANCE.registerFeedRuntime(this);
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Registered feed runtime manager for " + this.getFeedId());
+        }
+        adapterRuntime.start();
+    }
+
+    @Override
+    public void stop() {
+        try {
+            feedAdapter.stop();
+            state = State.FINISHED_INGESTION;
+            synchronized (this) {
+                notifyAll();
+            }
+        } catch (Exception e) {
+            if (LOGGER.isLoggable(Level.WARNING)) {
+                LOGGER.warning("Unable to stop adapter");
+            }
+        }
+    }
+
+    @Override
+    public FeedId getFeedId() {
+        return feedId;
+    }
+
+    public IFeedAdapter getFeedAdapter() {
+        return feedAdapter;
+    }
+
+    public void setFeedAdapter(IFeedAdapter feedAdapter) {
+        this.feedAdapter = feedAdapter;
+    }
+
+    public static class AdapterExecutor implements Runnable {
+
+        private MaterializingFrameWriter writer;
+
+        private final int partition;
+
+        private IFeedAdapter adapter;
+
+        private AdapterRuntimeManager runtimeManager;
+
+        public AdapterExecutor(int partition, MaterializingFrameWriter writer, IFeedAdapter adapter,
+                AdapterRuntimeManager adapterRuntimeMgr) {
+            this.writer = writer;
+            this.partition = partition;
+            this.adapter = adapter;
+            this.runtimeManager = adapterRuntimeMgr;
+        }
+
+        @Override
+        public void run() {
+            try {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Starting ingestion for partition:" + partition);
+                }
+                adapter.start(partition, writer);
+                runtimeManager.setState(State.FINISHED_INGESTION);
+                synchronized (runtimeManager) {
+                    runtimeManager.notifyAll();
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        public MaterializingFrameWriter getWriter() {
+            return writer;
+        }
+
+        public void setWriter(IFrameWriter writer) {
+            if (this.writer != null) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Switching writer to:" + writer + " from " + this.writer);
+                }
+                this.writer.setWriter(writer);
+            }
+        }
+
+        public int getPartition() {
+            return partition;
+        }
+
+    }
+
+    public State getState() {
+        return state;
+    }
+
+    @SuppressWarnings("incomplete-switch")
+    public void setState(State state) throws HyracksDataException {
+        if (this.state.equals(state)) {
+            return;
+        }
+        switch (state) {
+            case INACTIVE_INGESTION:
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("SETTING STORE MODE");
+                }
+                adapterExecutor.getWriter().setMode(Mode.STORE);
+                break;
+            case ACTIVE_INGESTION:
+                adapterExecutor.getWriter().setMode(Mode.FORWARD);
+                break;
+        }
+        this.state = state;
+    }
+
+    public AdapterExecutor getAdapterExecutor() {
+        return adapterExecutor;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AlterFeedMessage.java
similarity index 95%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AlterFeedMessage.java
index c36dc03..9c0d3e5 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AlterFeedMessage.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.metadata.feeds;
 
 import java.util.Map;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/BuiltinFeedPolicies.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/BuiltinFeedPolicies.java
new file mode 100644
index 0000000..3db5916
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/BuiltinFeedPolicies.java
@@ -0,0 +1,107 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
+import edu.uci.ics.asterix.metadata.entities.FeedPolicy;
+
+public class BuiltinFeedPolicies {
+
+    public static final FeedPolicy BRITTLE = initializeBrittlePolicy();
+
+    public static final FeedPolicy BASIC = initializeBasicPolicy();
+
+    public static final FeedPolicy BASIC_MONITORED = initializeBasicMonitoredPolicy();
+
+    public static final FeedPolicy FAULT_TOLERANT_BASIC_MONITORED = initializeFaultTolerantBasicMonitoredPolicy();
+
+    public static final FeedPolicy ELASTIC = initializeFaultTolerantBasicMonitoredElasticPolicy();
+
+    public static final FeedPolicy[] policies = new FeedPolicy[] { BRITTLE, BASIC, BASIC_MONITORED,
+            FAULT_TOLERANT_BASIC_MONITORED, ELASTIC };
+
+    public static final FeedPolicy DEFAULT_POLICY = FAULT_TOLERANT_BASIC_MONITORED;
+
+    public static final String CONFIG_FEED_POLICY_KEY = "policy";
+
+    public static FeedPolicy getFeedPolicy(String policyName) {
+        for (FeedPolicy policy : policies) {
+            if (policy.getPolicyName().equalsIgnoreCase(policyName)) {
+                return policy;
+            }
+        }
+        return null;
+    }
+
+    private static FeedPolicy initializeFaultTolerantBasicMonitoredElasticPolicy() {
+        Map<String, String> policyParams = new HashMap<String, String>();
+        policyParams.put(FeedPolicyAccessor.FAILURE_LOG_ERROR, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_LOG_DATA, "true");
+        policyParams.put(FeedPolicyAccessor.HARDWARE_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.CLUSTER_REBOOT_AUTO_RESTART, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD, "60");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD_UNIT, FeedPolicyAccessor.TimeUnit.SEC.name());
+        policyParams.put(FeedPolicyAccessor.ELASTIC, "true");
+        String description = "Basic Monitored Fault-Tolerant Elastic";
+        return new FeedPolicy(MetadataConstants.METADATA_DATAVERSE_NAME, "BMFE", description, policyParams);
+    }
+
+    private static FeedPolicy initializeFaultTolerantBasicMonitoredPolicy() {
+        Map<String, String> policyParams = new HashMap<String, String>();
+        policyParams.put(FeedPolicyAccessor.FAILURE_LOG_ERROR, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_LOG_DATA, "true");
+        policyParams.put(FeedPolicyAccessor.HARDWARE_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.CLUSTER_REBOOT_AUTO_RESTART, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD, "60");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD_UNIT, FeedPolicyAccessor.TimeUnit.SEC.name());
+        policyParams.put(FeedPolicyAccessor.ELASTIC, "false");
+        String description = "Basic Monitored Fault-Tolerant";
+        return new FeedPolicy(MetadataConstants.METADATA_DATAVERSE_NAME, "BMF", description, policyParams);
+    }
+
+    private static FeedPolicy initializeBasicMonitoredPolicy() {
+        Map<String, String> policyParams = new HashMap<String, String>();
+        policyParams.put(FeedPolicyAccessor.FAILURE_LOG_ERROR, "false");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_LOG_DATA, "true");
+        policyParams.put(FeedPolicyAccessor.HARDWARE_FAILURE_CONTINUE, "false");
+        policyParams.put(FeedPolicyAccessor.CLUSTER_REBOOT_AUTO_RESTART, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD, "60");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS_PERIOD_UNIT, FeedPolicyAccessor.TimeUnit.SEC.name());
+        policyParams.put(FeedPolicyAccessor.ELASTIC, "false");
+        String description = "Basic Monitored Fault-Tolerant";
+        return new FeedPolicy(MetadataConstants.METADATA_DATAVERSE_NAME, "BM", description, policyParams);
+    }
+
+    private static FeedPolicy initializeBasicPolicy() {
+        Map<String, String> policyParams = new HashMap<String, String>();
+        policyParams.put(FeedPolicyAccessor.FAILURE_LOG_ERROR, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_CONTINUE, "true");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_LOG_DATA, "false");
+        policyParams.put(FeedPolicyAccessor.CLUSTER_REBOOT_AUTO_RESTART, "true");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS, "false");
+        policyParams.put(FeedPolicyAccessor.ELASTIC, "false");
+        String description = "Basic";
+        return new FeedPolicy(MetadataConstants.METADATA_DATAVERSE_NAME, "B", description, policyParams);
+    }
+
+    private static FeedPolicy initializeBrittlePolicy() {
+        Map<String, String> policyParams = new HashMap<String, String>();
+        policyParams.put(FeedPolicyAccessor.FAILURE_LOG_ERROR, "false");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_CONTINUE, "false");
+        policyParams.put(FeedPolicyAccessor.APPLICATION_FAILURE_LOG_DATA, "false");
+        policyParams.put(FeedPolicyAccessor.HARDWARE_FAILURE_CONTINUE, "false");
+        policyParams.put(FeedPolicyAccessor.CLUSTER_REBOOT_AUTO_RESTART, "false");
+        policyParams.put(FeedPolicyAccessor.COLLECT_STATISTICS, "false");
+        policyParams.put(FeedPolicyAccessor.ELASTIC, "false");
+        String description = "Brittle";
+        return new FeedPolicy(MetadataConstants.METADATA_DATAVERSE_NAME, "Br", description, policyParams);
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ConditionalPushTupleParserFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ConditionalPushTupleParserFactory.java
new file mode 100644
index 0000000..2dfe886
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ConditionalPushTupleParserFactory.java
@@ -0,0 +1,205 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.runtime.operators.file.ADMDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.AbstractTupleParser;
+import edu.uci.ics.asterix.runtime.operators.file.DelimitedDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.IDataParser;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+public class ConditionalPushTupleParserFactory implements ITupleParserFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger LOGGER = Logger.getLogger(ConditionalPushTupleParserFactory.class.getName());
+
+    @Override
+    public ITupleParser createTupleParser(IHyracksTaskContext ctx) throws HyracksDataException {
+        IDataParser dataParser = null;
+        switch (parserType) {
+            case ADM:
+                dataParser = new ADMDataParser();
+                break;
+            case DELIMITED_DATA:
+                dataParser = new DelimitedDataParser(recordType, valueParserFactories, delimiter);
+                break;
+        }
+        return new ConditionalPushTupleParser(ctx, recordType, dataParser, configuration);
+    }
+
+    private final ARecordType recordType;
+    private final Map<String, String> configuration;
+    private IValueParserFactory[] valueParserFactories;
+    private char delimiter;
+    private final ParserType parserType;
+    private Object lock;
+
+    public enum ParserType {
+        ADM,
+        DELIMITED_DATA
+    }
+
+    public ConditionalPushTupleParserFactory(ARecordType recordType, IValueParserFactory[] valueParserFactories,
+            char fieldDelimiter, Map<String, String> configuration) {
+        this.recordType = recordType;
+        this.valueParserFactories = valueParserFactories;
+        this.delimiter = fieldDelimiter;
+        this.configuration = configuration;
+        this.parserType = ParserType.DELIMITED_DATA;
+
+    }
+
+    public ConditionalPushTupleParserFactory(ARecordType recordType, Map<String, String> configuration) {
+        this.recordType = recordType;
+        this.configuration = configuration;
+        this.parserType = ParserType.ADM;
+    }
+
+}
+
+class ConditionalPushTupleParser extends AbstractTupleParser {
+
+    private final IDataParser dataParser;
+    private int batchSize;
+    private long batchInterval;
+    private boolean continueIngestion = true;
+    private int tuplesInFrame = 0;
+    private TimeBasedFlushTask flushTask;
+    private Timer timer = new Timer();
+    private Object lock = new Object();
+    private boolean activeTimer = false;
+
+    public static final String BATCH_SIZE = "batch-size";
+    public static final String BATCH_INTERVAL = "batch-interval";
+
+    public ConditionalPushTupleParser(IHyracksTaskContext ctx, ARecordType recType, IDataParser dataParser,
+            Map<String, String> configuration) throws HyracksDataException {
+        super(ctx, recType);
+        this.dataParser = dataParser;
+        String propValue = (String) configuration.get(BATCH_SIZE);
+        batchSize = propValue != null ? Integer.parseInt(propValue) : Integer.MAX_VALUE;
+        propValue = (String) configuration.get(BATCH_INTERVAL);
+        batchInterval = propValue != null ? Long.parseLong(propValue) : -1;
+        activeTimer = batchInterval > 0;
+    }
+
+    public void stop() {
+        continueIngestion = false;
+    }
+
+    @Override
+    public IDataParser getDataParser() {
+        return dataParser;
+    }
+
+    @Override
+    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
+        flushTask = new TimeBasedFlushTask(writer, lock);
+        appender.reset(frame, true);
+        IDataParser parser = getDataParser();
+        try {
+            parser.initialize(in, recType, true);
+            if (activeTimer) {
+                timer.schedule(flushTask, 0, batchInterval);
+            }
+            while (continueIngestion) {
+                tb.reset();
+                if (!parser.parse(tb.getDataOutput())) {
+                    break;
+                }
+                tb.addFieldEndOffset();
+                addTuple(writer);
+            }
+            if (appender.getTupleCount() > 0) {
+                if (activeTimer) {
+                    synchronized (lock) {
+                        FrameUtils.flushFrame(frame, writer);
+                    }
+                } else {
+                    FrameUtils.flushFrame(frame, writer);
+                }
+            }
+        } catch (AsterixException ae) {
+            throw new HyracksDataException(ae);
+        } catch (IOException ioe) {
+            throw new HyracksDataException(ioe);
+        } finally {
+            if (activeTimer) {
+                timer.cancel();
+            }
+        }
+    }
+
+    protected void addTuple(IFrameWriter writer) throws HyracksDataException {
+        if (activeTimer) {
+            synchronized (lock) {
+                addTupleToFrame(writer);
+            }
+        } else {
+            addTupleToFrame(writer);
+        }
+    }
+
+    protected void addTupleToFrame(IFrameWriter writer) throws HyracksDataException {
+        if (tuplesInFrame == batchSize || !appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+            FrameUtils.flushFrame(frame, writer);
+            appender.reset(frame, true);
+            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+                throw new IllegalStateException();
+            }
+            if (tuplesInFrame == batchSize) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Batch size exceeded! flushing frame " + "(" + tuplesInFrame + ")");
+                }
+            }
+            tuplesInFrame = 0;
+        }
+        tuplesInFrame++;
+    }
+
+    private class TimeBasedFlushTask extends TimerTask {
+
+        private IFrameWriter writer;
+        private final Object lock;
+
+        public TimeBasedFlushTask(IFrameWriter writer, Object lock) {
+            this.writer = writer;
+            this.lock = lock;
+        }
+
+        @Override
+        public void run() {
+            try {
+                if (tuplesInFrame > 0) {
+                    synchronized (lock) {
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("TTL expired flushing frame (" + tuplesInFrame + ")");
+                        }
+                        FrameUtils.flushFrame(frame, writer);
+                        appender.reset(frame, true);
+                        tuplesInFrame = 0;
+                    }
+                }
+            } catch (HyracksDataException e) {
+                e.printStackTrace();
+            }
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ExternalDataScanOperatorDescriptor.java
similarity index 72%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ExternalDataScanOperatorDescriptor.java
index 4290132..c5937f6 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ExternalDataScanOperatorDescriptor.java
@@ -12,13 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.data.operator;
+package edu.uci.ics.asterix.metadata.feeds;
 
-import java.util.Map;
-
-import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
-import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
 import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
@@ -36,17 +31,13 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final Map<String, Object> adapterConfiguration;
-    private final IAType atype;
-    private IGenericDatasetAdapterFactory datasourceAdapterFactory;
+    private IAdapterFactory adapterFactory;
 
-    public ExternalDataScanOperatorDescriptor(JobSpecification spec, Map<String, Object> arguments, IAType atype,
-            RecordDescriptor rDesc, IGenericDatasetAdapterFactory dataSourceAdapterFactory) {
+    public ExternalDataScanOperatorDescriptor(JobSpecification spec, RecordDescriptor rDesc,
+            IAdapterFactory dataSourceAdapterFactory) {
         super(spec, 0, 1);
         recordDescriptors[0] = rDesc;
-        this.adapterConfiguration = arguments;
-        this.atype = atype;
-        this.datasourceAdapterFactory = dataSourceAdapterFactory;
+        this.adapterFactory = dataSourceAdapterFactory;
     }
 
     @Override
@@ -60,9 +51,7 @@
                 writer.open();
                 IDatasourceAdapter adapter = null;
                 try {
-                    adapter = ((IGenericDatasetAdapterFactory) datasourceAdapterFactory).createAdapter(
-                            adapterConfiguration, atype);
-                    adapter.initialize(ctx);
+                    adapter = ((IAdapterFactory) adapterFactory).createAdapter(ctx);
                     adapter.start(partition, writer);
                 } catch (Exception e) {
                     throw new HyracksDataException("exception during reading from external data source", e);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedActivityIdFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedActivityIdFactory.java
new file mode 100644
index 0000000..db1a62a
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedActivityIdFactory.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class FeedActivityIdFactory {
+	private static AtomicInteger id = new AtomicInteger();
+	private static boolean isInitialized = false;
+
+	public static boolean isInitialized() {
+		return isInitialized;
+	}
+
+	public static void initialize(int initialId) {
+		id.set(initialId);
+		isInitialized = true;
+	}
+
+	public static int generateFeedActivityId() {
+		return id.incrementAndGet();
+	}
+
+	public static int getMostRecentFeedActivityId() {
+		return id.get();
+	}
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedId.java
similarity index 96%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedId.java
index 94e679d..d56081d 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedId.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.metadata.feeds;
 
 import java.io.Serializable;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorDescriptor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorDescriptor.java
new file mode 100644
index 0000000..d007d6f
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorDescriptor.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
+import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+
+/**
+ * Operator responsible for ingesting data from an external source. This
+ * operator uses a (configurable) adapter associated with the feed dataset.
+ */
+public class FeedIntakeOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private final IAType atype;
+    private final FeedId feedId;
+    private final Map<String, String> feedPolicy;
+    private IAdapterFactory adapterFactory;
+
+    public FeedIntakeOperatorDescriptor(JobSpecification spec, FeedId feedId, IAdapterFactory adapterFactory,
+            ARecordType atype, RecordDescriptor rDesc, Map<String, String> feedPolicy) {
+        super(spec, 1, 1);
+        recordDescriptors[0] = rDesc;
+        this.adapterFactory = adapterFactory;
+        this.atype = atype;
+        this.feedId = feedId;
+        this.feedPolicy = feedPolicy;
+    }
+
+    public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
+            IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions)
+            throws HyracksDataException {
+        IFeedAdapter adapter;
+        try {
+            adapter = (IFeedAdapter) adapterFactory.createAdapter(ctx);
+        } catch (Exception e) {
+            throw new HyracksDataException("initialization of adapter failed", e);
+        }
+        return new FeedIntakeOperatorNodePushable(feedId, adapter, feedPolicy, partition);
+    }
+
+    public FeedId getFeedId() {
+        return feedId;
+    }
+
+    public Map<String, String> getFeedPolicy() {
+        return feedPolicy;
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorNodePushable.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorNodePushable.java
new file mode 100644
index 0000000..0d46e43
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedIntakeOperatorNodePushable.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.nio.ByteBuffer;
+import java.util.Map;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.metadata.feeds.AdapterRuntimeManager.State;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
+
+/**
+ * The runtime for @see{FeedIntakeOperationDescriptor}
+ */
+public class FeedIntakeOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
+
+    private static Logger LOGGER = Logger.getLogger(FeedIntakeOperatorNodePushable.class.getName());
+
+    private IFeedAdapter adapter;
+    private final int partition;
+    private final FeedId feedId;
+    private final LinkedBlockingQueue<IFeedMessage> inbox;
+    private final Map<String, String> feedPolicy;
+    private final FeedPolicyEnforcer policyEnforcer;
+    private AdapterRuntimeManager adapterRuntimeMgr;
+
+    public FeedIntakeOperatorNodePushable(FeedId feedId, IFeedAdapter adapter, Map<String, String> feedPolicy,
+            int partition) {
+        this.adapter = adapter;
+        this.partition = partition;
+        this.feedId = feedId;
+        inbox = new LinkedBlockingQueue<IFeedMessage>();
+        this.feedPolicy = feedPolicy;
+        policyEnforcer = new FeedPolicyEnforcer(feedId, feedPolicy);
+    }
+
+    @Override
+    public void open() throws HyracksDataException {
+        adapterRuntimeMgr = FeedManager.INSTANCE.getFeedRuntimeManager(feedId, partition);
+        try {
+            if (adapterRuntimeMgr == null) {
+                MaterializingFrameWriter mWriter = new MaterializingFrameWriter(writer);
+                adapterRuntimeMgr = new AdapterRuntimeManager(feedId, adapter, mWriter, partition, inbox);
+                if (adapter instanceof AbstractFeedDatasourceAdapter) {
+                    ((AbstractFeedDatasourceAdapter) adapter).setFeedPolicyEnforcer(policyEnforcer);
+                }
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Beginning new feed:" + feedId);
+                }
+                mWriter.open();
+                adapterRuntimeMgr.start();
+            } else {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Resuming old feed:" + feedId);
+                }
+                adapter = adapterRuntimeMgr.getFeedAdapter();
+                writer.open();
+                adapterRuntimeMgr.getAdapterExecutor().setWriter(writer);
+                adapterRuntimeMgr.setState(State.ACTIVE_INGESTION);
+            }
+
+            synchronized (adapterRuntimeMgr) {
+                while (!adapterRuntimeMgr.getState().equals(State.FINISHED_INGESTION)) {
+                    adapterRuntimeMgr.wait();
+                }
+            }
+            FeedManager.INSTANCE.deRegisterFeedRuntime(adapterRuntimeMgr);
+        } catch (InterruptedException ie) {
+            if (policyEnforcer.getFeedPolicyAccessor().continueOnHardwareFailure()) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Continuing on failure as per feed policy");
+                }
+                adapterRuntimeMgr.setState(State.INACTIVE_INGESTION);
+            } else {
+                throw new HyracksDataException(ie);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new HyracksDataException(e);
+        } finally {
+            writer.close();
+        }
+    }
+
+    @Override
+    public void fail() throws HyracksDataException {
+        writer.close();
+    }
+
+    @Override
+    public void close() throws HyracksDataException {
+
+    }
+
+    @Override
+    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
+        // do nothing
+    }
+
+    public Map<String, String> getFeedPolicy() {
+        return feedPolicy;
+    }
+}
+
+class FeedInboxMonitor extends Thread {
+
+    private LinkedBlockingQueue<IFeedMessage> inbox;
+    private final AdapterRuntimeManager runtimeMgr;
+
+    public FeedInboxMonitor(AdapterRuntimeManager runtimeMgr, LinkedBlockingQueue<IFeedMessage> inbox, int partition) {
+        this.inbox = inbox;
+        this.runtimeMgr = runtimeMgr;
+    }
+
+    @Override
+    public void run() {
+        while (true) {
+            try {
+                IFeedMessage feedMessage = inbox.take();
+                switch (feedMessage.getMessageType()) {
+                    case END:
+                        runtimeMgr.stop();
+                        break;
+                    case ALTER:
+                        runtimeMgr.getFeedAdapter().alter(((AlterFeedMessage) feedMessage).getAlteredConfParams());
+                        break;
+                }
+            } catch (InterruptedException ie) {
+                break;
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedManager.java
new file mode 100644
index 0000000..7c9a6d8
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedManager.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Handle (de)registration of feeds for delivery of control messages.
+ */
+public class FeedManager implements IFeedManager {
+
+    public static FeedManager INSTANCE = new FeedManager();
+
+    private FeedManager() {
+
+    }
+
+    private Map<FeedId, List<AdapterRuntimeManager>> activeFeedRuntimeManagers = new HashMap<FeedId, List<AdapterRuntimeManager>>();
+
+    @Override
+    public synchronized void registerFeedRuntime(AdapterRuntimeManager adapterRuntimeMgr) {
+        List<AdapterRuntimeManager> adpaterRuntimeMgrs = activeFeedRuntimeManagers.get(adapterRuntimeMgr.getFeedId());
+        if (adpaterRuntimeMgrs == null) {
+            adpaterRuntimeMgrs = new ArrayList<AdapterRuntimeManager>();
+            activeFeedRuntimeManagers.put(adapterRuntimeMgr.getFeedId(), adpaterRuntimeMgrs);
+        }
+        adpaterRuntimeMgrs.add(adapterRuntimeMgr);
+    }
+
+    @Override
+    public synchronized void deRegisterFeedRuntime(AdapterRuntimeManager adapterRuntimeMgr) {
+        List<AdapterRuntimeManager> adapterRuntimeMgrs = activeFeedRuntimeManagers.get(adapterRuntimeMgr.getFeedId());
+        if (adapterRuntimeMgrs != null && adapterRuntimeMgrs.contains(adapterRuntimeMgr)) {
+            adapterRuntimeMgrs.remove(adapterRuntimeMgr);
+        }
+    }
+
+    @Override
+    public synchronized AdapterRuntimeManager getFeedRuntimeManager(FeedId feedId, int partition) {
+        List<AdapterRuntimeManager> adapterRuntimeMgrs = activeFeedRuntimeManagers.get(feedId);
+        if (adapterRuntimeMgrs != null) {
+            for (AdapterRuntimeManager mgr : adapterRuntimeMgrs) {
+                if (mgr.getAdapterExecutor().getPartition() == partition) {
+                    return mgr;
+                }
+            }
+        }
+        return null;
+    }
+
+    public List<AdapterRuntimeManager> getFeedRuntimeManagers(FeedId feedId) {
+        return activeFeedRuntimeManagers.get(feedId);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessage.java
similarity index 91%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessage.java
index 96262fe..ae630ac 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessage.java
@@ -12,7 +12,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.metadata.feeds;
+
+import edu.uci.ics.asterix.metadata.feeds.IFeedMessage;
 
 /**
  * A control message that can be sent to the runtime instance of a 
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
similarity index 80%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
index 300e3af..a302978 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
@@ -12,12 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.data.operator;
+package edu.uci.ics.asterix.metadata.feeds;
 
-import java.util.List;
-
-import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
-import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
 import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
@@ -33,20 +29,19 @@
     private static final long serialVersionUID = 1L;
 
     private final FeedId feedId;
-    private final List<IFeedMessage> feedMessages;
-    private final boolean sendToAll = true;
+    private final IFeedMessage feedMessage;
 
     public FeedMessageOperatorDescriptor(JobSpecification spec, String dataverse, String dataset,
-            List<IFeedMessage> feedMessages) {
+            IFeedMessage feedMessage) {
         super(spec, 0, 1);
         this.feedId = new FeedId(dataverse, dataset);
-        this.feedMessages = feedMessages;
+        this.feedMessage = feedMessage;
     }
 
     @Override
     public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
             IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) throws HyracksDataException {
-        return new FeedMessageOperatorNodePushable(ctx, feedId, feedMessages, sendToAll, partition, nPartitions);
+        return new FeedMessageOperatorNodePushable(ctx, feedId, feedMessage, partition, nPartitions);
     }
 
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorNodePushable.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorNodePushable.java
new file mode 100644
index 0000000..4ffa8a9
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorNodePushable.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
+
+/**
+ * Runtime for the @see{FeedMessageOperatorDescriptor}
+ */
+public class FeedMessageOperatorNodePushable extends AbstractUnaryOutputSourceOperatorNodePushable {
+
+    private static final Logger LOGGER = Logger.getLogger(FeedMessageOperatorNodePushable.class.getName());
+
+    private final FeedId feedId;
+    private final IFeedMessage feedMessage;
+    private final int partition;
+
+    public FeedMessageOperatorNodePushable(IHyracksTaskContext ctx, FeedId feedId, IFeedMessage feedMessage,
+            int partition, int nPartitions) {
+        this.feedId = feedId;
+        this.feedMessage = feedMessage;
+        this.partition = partition;
+    }
+
+    @Override
+    public void initialize() throws HyracksDataException {
+        try {
+            writer.open();
+            AdapterRuntimeManager adapterRuntimeMgr = FeedManager.INSTANCE.getFeedRuntimeManager(feedId, partition);
+            if (adapterRuntimeMgr != null) {
+                switch (feedMessage.getMessageType()) {
+                    case END:
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.info("Ending feed:" + feedId);
+                        }
+                        adapterRuntimeMgr.stop();
+                        FeedManager.INSTANCE.deRegisterFeedRuntime(adapterRuntimeMgr);
+                        break;
+                    case ALTER:
+                        adapterRuntimeMgr.getFeedAdapter().alter(
+                                ((AlterFeedMessage) feedMessage).getAlteredConfParams());
+                        break;
+                }
+            } else {
+                throw new AsterixException("Unknown feed: " + feedId);
+            }
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        } finally {
+            writer.close();
+        }
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyAccessor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyAccessor.java
new file mode 100644
index 0000000..a3c505b
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyAccessor.java
@@ -0,0 +1,91 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.Map;
+
+public class FeedPolicyAccessor {
+    public static final String FAILURE_LOG_ERROR = "failure.log.error";
+    public static final String APPLICATION_FAILURE_LOG_DATA = "application.failure.log.data";
+    public static final String APPLICATION_FAILURE_CONTINUE = "application.failure.continue";
+    public static final String HARDWARE_FAILURE_CONTINUE = "hardware.failure.continue";
+    public static final String CLUSTER_REBOOT_AUTO_RESTART = "cluster.reboot.auto.restart";
+    public static final String COLLECT_STATISTICS = "collect.statistics";
+    public static final String COLLECT_STATISTICS_PERIOD = "collect.statistics.period";
+    public static final String COLLECT_STATISTICS_PERIOD_UNIT = "collect.statistics.period.unit";
+    public static final String ELASTIC = "elastic";
+
+    public enum TimeUnit {
+        SEC,
+        MIN,
+        HRS,
+        DAYS
+    }
+
+    private Map<String, String> feedPolicy;
+
+    public FeedPolicyAccessor(Map<String, String> feedPolicy) {
+        this.feedPolicy = feedPolicy;
+    }
+
+    public boolean logErrorOnFailure() {
+        return getBooleanPropertyValue(FAILURE_LOG_ERROR);
+    }
+
+    public boolean logDataOnApplicationFailure() {
+        return getBooleanPropertyValue(APPLICATION_FAILURE_LOG_DATA);
+    }
+
+    public boolean continueOnApplicationFailure() {
+        return getBooleanPropertyValue(APPLICATION_FAILURE_CONTINUE);
+    }
+
+    public boolean continueOnHardwareFailure() {
+        return getBooleanPropertyValue(HARDWARE_FAILURE_CONTINUE);
+    }
+
+    public boolean autoRestartOnClusterReboot() {
+        return getBooleanPropertyValue(CLUSTER_REBOOT_AUTO_RESTART);
+    }
+
+    public boolean collectStatistics() {
+        return getBooleanPropertyValue(COLLECT_STATISTICS);
+    }
+
+    public long getStatisicsCollectionPeriodInSecs() {
+        return getIntegerPropertyValue(COLLECT_STATISTICS_PERIOD) * getTimeUnitFactor();
+    }
+
+    public boolean isElastic() {
+        return getBooleanPropertyValue(ELASTIC);
+    }
+
+    private int getTimeUnitFactor() {
+        String v = feedPolicy.get(COLLECT_STATISTICS_PERIOD_UNIT);
+        int factor = 1;
+        switch (TimeUnit.valueOf(v)) {
+            case SEC:
+                factor = 1;
+                break;
+            case MIN:
+                factor = 60;
+                break;
+            case HRS:
+                factor = 3600;
+                break;
+            case DAYS:
+                factor = 216000;
+                break;
+
+        }
+        return factor;
+    }
+
+    private boolean getBooleanPropertyValue(String key) {
+        String v = feedPolicy.get(key);
+        return v == null ? false : Boolean.valueOf(v);
+    }
+
+    private int getIntegerPropertyValue(String key) {
+        String v = feedPolicy.get(key);
+        return Integer.parseInt(v);
+    }
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyEnforcer.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyEnforcer.java
new file mode 100644
index 0000000..0f8bcee
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedPolicyEnforcer.java
@@ -0,0 +1,64 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.rmi.RemoteException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+
+public class FeedPolicyEnforcer {
+
+    private final FeedId feedId;
+    private final FeedPolicyAccessor feedPolicyAccessor;
+    private final FeedActivity feedActivity;
+
+    public FeedPolicyEnforcer(FeedId feedId, Map<String, String> feedPolicy) {
+        this.feedId = feedId;
+        this.feedPolicyAccessor = new FeedPolicyAccessor(feedPolicy);
+        this.feedActivity = new FeedActivity(feedId.getDataverse(), feedId.getDataset(), null,
+                new HashMap<String, String>());
+    }
+
+    public boolean handleSoftwareFailure(Exception e) throws RemoteException, ACIDException {
+        boolean continueIngestion = feedPolicyAccessor.continueOnApplicationFailure();
+        if (feedPolicyAccessor.logErrorOnFailure()) {
+            persistExceptionDetails(e);
+        }
+        return continueIngestion;
+    }
+
+    private synchronized void persistExceptionDetails(Exception e) throws RemoteException, ACIDException {
+        MetadataManager.INSTANCE.acquireWriteLatch();
+        MetadataTransactionContext ctx = null;
+        try {
+            ctx = MetadataManager.INSTANCE.beginTransaction();
+            feedActivity.setActivityType(FeedActivityType.FEED_FAILURE);
+            feedActivity.getFeedActivityDetails().put(FeedActivity.FeedActivityDetails.EXCEPTION_MESSAGE,
+                    e.getMessage());
+            MetadataManager.INSTANCE.registerFeedActivity(ctx, feedId, feedActivity);
+            MetadataManager.INSTANCE.commitTransaction(ctx);
+        } catch (Exception e2) {
+            MetadataManager.INSTANCE.abortTransaction(ctx);
+        } finally {
+            MetadataManager.INSTANCE.releaseWriteLatch();
+        }
+    }
+
+    public void handleHardwareFailure(List<String> nodeId) {
+
+    }
+
+    public FeedPolicyAccessor getFeedPolicyAccessor() {
+        return feedPolicyAccessor;
+    }
+
+    public FeedId getFeedId() {
+        return feedId;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedUtil.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedUtil.java
new file mode 100644
index 0000000..47ccaf1
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedUtil.java
@@ -0,0 +1,12 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import edu.uci.ics.asterix.metadata.entities.FeedActivity;
+import edu.uci.ics.asterix.metadata.entities.FeedActivity.FeedActivityType;
+
+public class FeedUtil {
+
+    public static boolean isFeedActive(FeedActivity feedActivity) {
+        return (feedActivity != null && (!feedActivity.getActivityType().equals(FeedActivityType.FEED_END) && !feedActivity
+                .getActivityType().equals(FeedActivityType.FEED_FAILURE)));
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterExecutor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterExecutor.java
new file mode 100644
index 0000000..0f71166
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterExecutor.java
@@ -0,0 +1,11 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+public interface IAdapterExecutor {
+
+    public void start() throws Exception;
+
+    public void stop() throws Exception;
+
+    public FeedId getFeedId();
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterFactory.java
new file mode 100644
index 0000000..5ea79d0
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IAdapterFactory.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.io.Serializable;
+import java.util.Map;
+
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * Base interface for IGenericDatasetAdapterFactory and ITypedDatasetAdapterFactory.
+ * Acts as a marker interface indicating that the implementation provides functionality
+ * for creating an adapter.
+ */
+public interface IAdapterFactory extends Serializable {
+
+    /**
+     * A 'GENERIC' adapter can be configured to return a given datatype.
+     * A 'TYPED' adapter returns records with a pre-defined datatype.
+     */
+    public enum AdapterType {
+        GENERIC,
+        TYPED
+    }
+
+    public enum SupportedOperation {
+        READ,
+        WRITE,
+        READ_WRITE
+    }
+
+    /**
+     * Returns the type of adapter indicating if the adapter can be used for
+     * reading from an external data source or writing to an external data
+     * source or can be used for both purposes.
+     * 
+     * @see SupportedOperation
+     * @return
+     */
+    public SupportedOperation getSupportedOperations();
+
+    /**
+     * Returns the display name corresponding to the Adapter type that is created by the factory.
+     * 
+     * @return the display name
+     */
+    public String getName();
+
+    /**
+     * Returns the type of the adapter (GENERIC or TYPED)
+     * 
+     * @return
+     */
+    public AdapterType getAdapterType();
+
+    /**
+     * Returns a list of partition constraints. A partition constraint can be a
+     * requirement to execute at a particular location or could be cardinality
+     * constraints indicating the number of instances that need to run in
+     * parallel. example, a IDatasourceAdapter implementation written for data
+     * residing on the local file system of a node cannot run on any other node
+     * and thus has a location partition constraint. The location partition
+     * constraint can be expressed as a node IP address or a node controller id.
+     * In the former case, the IP address is translated to a node controller id
+     * running on the node with the given IP address.
+     * 
+     * @Caller The wrapper operator configures its partition constraints from
+     *         the constraints obtained from the adapter factory.
+     */
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
+
+    /**
+     * Creates an instance of IDatasourceAdapter.
+     * 
+     * @param HyracksTaskContext
+     * @return An instance of IDatasourceAdapter.
+     * @throws Exception
+     */
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception;
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IDatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IDatasourceAdapter.java
new file mode 100644
index 0000000..d0f8cdd
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IDatasourceAdapter.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+
+/**
+ * A super interface implemented by a data source adapter. An adapter can be a
+ * pull based or push based. This interface provides all common APIs that need
+ * to be implemented by each adapter irrespective of the the kind of
+ * adapter(pull or push).
+ */
+public interface IDatasourceAdapter extends Serializable {
+
+    /**
+     * An adapter can be used to read from an external data source and may also
+     * allow writing to the external data source. This enum type indicates the
+     * kind of operations supported by the adapter.
+     * 
+     * @caller Compiler uses this method to assert the validity of an operation
+     *         on an external dataset. The type of adapter associated with an
+     *         external dataset determines the set of valid operations allowed
+     *         on the dataset.
+     */
+   
+
+    /**
+     * Triggers the adapter to begin ingesting data from the external source.
+     * 
+     * @param partition
+     *            The adapter could be running with a degree of parallelism.
+     *            partition corresponds to the i'th parallel instance.
+     * @param writer
+     *            The instance of frame writer that is used by the adapter to
+     *            write frame to. Adapter packs the fetched bytes (from external source),
+     *            packs them into frames and forwards the frames to an upstream receiving
+     *            operator using the instance of IFrameWriter.
+     * @throws Exception
+     */
+    public void start(int partition, IFrameWriter writer) throws Exception;
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedAdapter.java
similarity index 89%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedAdapter.java
index 87e8478..164d292 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedAdapter.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.feed.managed.adapter;
+package edu.uci.ics.asterix.metadata.feeds;
 
 import java.util.Map;
 
@@ -20,14 +20,14 @@
  * Interface implemented by an adapter that can be controlled or managed by external
  * commands (stop,alter)
  */
-public interface IManagedFeedAdapter {
+public interface IFeedAdapter extends IDatasourceAdapter {
 
     /**
      * Discontinue the ingestion of data and end the feed.
      * 
      * @throws Exception
      */
-    public void stop();
+    public void stop() throws Exception;
 
     /**
      * Modify the adapter configuration parameters. This method is called
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedManager.java
new file mode 100644
index 0000000..46302e8
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedManager.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.feeds;
+
+/**
+ * Handle (de)registration of feeds for delivery of control messages.
+ */
+public interface IFeedManager {
+
+    /**
+     * @param adapterRuntimeMgr
+     */
+    public void registerFeedRuntime(AdapterRuntimeManager adapterRuntimeMgr);
+
+    /**
+     * @param adapterRuntimeMgr
+     */
+    public void deRegisterFeedRuntime(AdapterRuntimeManager adapterRuntimeMgr);
+
+    /**
+     * @param feedId
+     * @param partition
+     * @return
+     */
+    public AdapterRuntimeManager getFeedRuntimeManager(FeedId feedId, int partition);
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedMessage.java
similarity index 92%
rename from asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
rename to asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedMessage.java
index dcef2c8..36a45be 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IFeedMessage.java
@@ -12,14 +12,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.external.feed.lifecycle;
+package edu.uci.ics.asterix.metadata.feeds;
 
 import java.io.Serializable;
 
 public interface IFeedMessage extends Serializable {
 
     public enum MessageType {
-        STOP,
+        END,
         ALTER,
     }
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericAdapterFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericAdapterFactory.java
new file mode 100644
index 0000000..ac0c711
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericAdapterFactory.java
@@ -0,0 +1,11 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.types.ARecordType;
+
+public interface IGenericAdapterFactory extends IAdapterFactory {
+
+    public void configure(Map<String, String> configuration, ARecordType outputType) throws Exception;
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedAdapterFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedAdapterFactory.java
new file mode 100644
index 0000000..76ea93a
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedAdapterFactory.java
@@ -0,0 +1,12 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.om.types.ARecordType;
+
+public interface ITypedAdapterFactory extends IAdapterFactory {
+
+    public ARecordType getAdapterOutputType();
+
+    public void configure(Map<String, String> configuration) throws Exception;
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/MaterializingFrameWriter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/MaterializingFrameWriter.java
new file mode 100644
index 0000000..b423b89
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/MaterializingFrameWriter.java
@@ -0,0 +1,118 @@
+package edu.uci.ics.asterix.metadata.feeds;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class MaterializingFrameWriter implements IFrameWriter {
+
+    private static final Logger LOGGER = Logger.getLogger(MaterializingFrameWriter.class.getName());
+
+    private IFrameWriter writer;
+
+    private List<ByteBuffer> frames = new ArrayList<ByteBuffer>();
+
+    private Mode mode;
+
+    public enum Mode {
+        FORWARD,
+        STORE
+    }
+
+    public MaterializingFrameWriter(IFrameWriter writer) {
+        this.writer = writer;
+        this.mode = Mode.FORWARD;
+    }
+
+    public Mode getMode() {
+        return mode;
+    }
+
+    public void setMode(Mode newMode) throws HyracksDataException {
+        if (this.mode.equals(newMode)) {
+            return;
+        }
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Switching to :" + newMode + " from " + this.mode);
+        }
+        switch (newMode) {
+            case FORWARD:
+                this.mode = newMode;
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Sending accumulated frames :" + frames.size());
+                }
+                break;
+            case STORE:
+                this.mode = newMode;
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Beginning to store frames :");
+                    LOGGER.info("Frames accumulated till now:" + frames.size());
+                }
+                break;
+        }
+
+    }
+
+    public List<ByteBuffer> getStoredFrames() {
+        return frames;
+    }
+
+    public void clear() {
+        frames.clear();
+    }
+
+    @Override
+    public void open() throws HyracksDataException {
+        writer.open();
+    }
+
+    @Override
+    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
+        switch (mode) {
+            case FORWARD:
+                writer.nextFrame(buffer);
+                if (frames.size() > 0) {
+                    for (ByteBuffer buf : frames) {
+                        System.out.println("Flusing OLD frame: " + buf);
+                        writer.nextFrame(buf);
+                    }
+                }
+                frames.clear();
+                break;
+            case STORE:
+                ByteBuffer storageBuffer = ByteBuffer.allocate(buffer.capacity());
+                storageBuffer.put(buffer);
+                frames.add(storageBuffer);
+                storageBuffer.flip();
+                break;
+        }
+    }
+
+    @Override
+    public void fail() throws HyracksDataException {
+        writer.fail();
+    }
+
+    @Override
+    public void close() throws HyracksDataException {
+        writer.close();
+    }
+
+    public IFrameWriter getWriter() {
+        return writer;
+    }
+
+    public void setWriter(IFrameWriter writer) {
+        this.writer = writer;
+    }
+
+    @Override
+    public String toString() {
+        return "MaterializingFrameWriter using " + writer;
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java
new file mode 100644
index 0000000..6bf5be3
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.functions;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.om.functions.AsterixExternalFunctionInfo;
+import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+
+public class AsterixExternalScalarFunctionInfo extends AsterixExternalFunctionInfo {
+
+    private static final long serialVersionUID = 1L;
+
+    public AsterixExternalScalarFunctionInfo(String namespace, AsterixFunction asterixFunction, IAType returnType,
+            String body, String language, List<IAType> argumentTypes, IResultTypeComputer rtc) {
+        super(namespace, asterixFunction, FunctionKind.SCALAR, argumentTypes, returnType, rtc, body, language);
+    }
+
+    public AsterixExternalScalarFunctionInfo() {
+        super();
+    }
+
+    
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java
new file mode 100644
index 0000000..f699c41
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java
@@ -0,0 +1,221 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.functions;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.Datatype;
+import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.ADoubleTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.AFloatTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.AInt32TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.AStringTypeComputer;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class ExternalFunctionCompilerUtil implements Serializable {
+
+    private  static Pattern orderedListPattern = Pattern.compile("\\[*\\]");
+    private  static Pattern unorderedListPattern = Pattern.compile("[{{*}}]");
+
+  
+    public static IFunctionInfo getExternalFunctionInfo(MetadataTransactionContext txnCtx, Function function)
+            throws MetadataException {
+
+        String functionKind = function.getKind();
+        IFunctionInfo finfo = null;
+        if (FunctionKind.SCALAR.toString().equalsIgnoreCase(functionKind)) {
+            finfo = getScalarFunctionInfo(txnCtx, function);
+        } else if (FunctionKind.AGGREGATE.toString().equalsIgnoreCase(functionKind)) {
+            finfo = getAggregateFunctionInfo(txnCtx, function);
+        } else if (FunctionKind.STATEFUL.toString().equalsIgnoreCase(functionKind)) {
+            finfo = getStatefulFunctionInfo(txnCtx, function);
+        } else if (FunctionKind.UNNEST.toString().equalsIgnoreCase(functionKind)) {
+            finfo = getUnnestFunctionInfo(txnCtx, function);
+        }
+        return finfo;
+    }
+
+    private static IFunctionInfo getScalarFunctionInfo(MetadataTransactionContext txnCtx, Function function)
+            throws MetadataException {
+        FunctionIdentifier fid = new FunctionIdentifier(function.getDataverseName(), function.getName(),
+                function.getArity());
+        IResultTypeComputer typeComputer = getResultTypeComputer(txnCtx, function);
+        List<IAType> arguments = new ArrayList<IAType>();
+        IAType returnType = null;
+        List<String> paramTypes = function.getParams();
+        for (String paramType : paramTypes) {
+            arguments.add(getTypeInfo(paramType, txnCtx, function));
+        }
+
+        returnType = getTypeInfo(function.getReturnType(), txnCtx, function);
+
+        AsterixExternalScalarFunctionInfo scalarFunctionInfo = new AsterixExternalScalarFunctionInfo(
+                fid.getNamespace(), new AsterixFunction(fid.getName(), fid.getArity()), returnType,
+                function.getFunctionBody(), function.getLanguage(), arguments, typeComputer);
+        return scalarFunctionInfo;
+    }
+
+    private static IAType getTypeInfo(String paramType, MetadataTransactionContext txnCtx, Function function)
+            throws MetadataException {
+        if (paramType.equalsIgnoreCase(BuiltinType.AINT32.getDisplayName())) {
+            return (BuiltinType.AINT32);
+        } else if (paramType.equalsIgnoreCase(BuiltinType.AFLOAT.getDisplayName())) {
+            return (BuiltinType.AFLOAT);
+        } else if (paramType.equalsIgnoreCase(BuiltinType.ASTRING.getDisplayName())) {
+            return (BuiltinType.ASTRING);
+        } else if (paramType.equalsIgnoreCase(BuiltinType.ADOUBLE.getDisplayName())) {
+            return (BuiltinType.ADOUBLE);
+        } else {
+            IAType collection = getCollectionType(paramType, txnCtx, function);
+            if (collection != null) {
+                return collection;
+            } else {
+                Datatype datatype;
+                datatype = MetadataManager.INSTANCE.getDatatype(txnCtx, function.getDataverseName(), paramType);
+                if (datatype == null) {
+                    throw new MetadataException(" Type " + paramType + " not defined");
+                }
+                return (datatype.getDatatype());
+            }
+        }
+    }
+
+    private static IAType getCollectionType(String paramType, MetadataTransactionContext txnCtx, Function function)
+            throws MetadataException {
+
+        Matcher matcher = orderedListPattern.matcher(paramType);
+        if (matcher.find()) {
+            String subType = paramType.substring(paramType.indexOf('[') + 1, paramType.lastIndexOf(']'));
+            return new AOrderedListType(getTypeInfo(subType, txnCtx, function), "AOrderedList");
+        } else {
+            matcher = unorderedListPattern.matcher(paramType);
+            if (matcher.find()) {
+                String subType = paramType.substring(paramType.indexOf("{{") + 2, paramType.lastIndexOf("}}"));
+                return new AUnorderedListType(getTypeInfo(subType, txnCtx, function), "AUnorderedList");
+            }
+        }
+        return null;
+    }
+
+    private static IResultTypeComputer getResultTypeComputer(final MetadataTransactionContext txnCtx,
+            final Function function) throws MetadataException {
+
+        final IAType type = getTypeInfo(function.getReturnType(), txnCtx, function);
+        switch (type.getTypeTag()) {
+            case INT32:
+                return AInt32TypeComputer.INSTANCE;
+            case FLOAT:
+                return AFloatTypeComputer.INSTANCE;
+            case DOUBLE:
+                return ADoubleTypeComputer.INSTANCE;
+            case STRING:
+                return AStringTypeComputer.INSTANCE;
+            case ORDEREDLIST:
+                return new IResultTypeComputer() {
+                    @Override
+                    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+                            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+
+                        return new AOrderedListType(((AOrderedListType) type).getItemType(), ((AOrderedListType) type)
+                                .getItemType().getTypeName());
+                    }
+
+                };
+            case UNORDEREDLIST:
+                return new IResultTypeComputer() {
+                    @Override
+                    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+                            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+
+                        return new AUnorderedListType(type, type.getTypeName());
+                    }
+
+                };
+            default:
+                IResultTypeComputer typeComputer = new IResultTypeComputer() {
+                    @Override
+                    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+                            IMetadataProvider<?, ?> mp) throws AlgebricksException {
+                        return type;
+                    }
+                };
+                return typeComputer;
+        }
+
+    }
+
+    private static IAType getType(Function function, MetadataTransactionContext txnCtx) throws AlgebricksException {
+        IAType collectionType = null;
+        try {
+            collectionType = getCollectionType(function.getReturnType(), txnCtx, function);
+            if (collectionType != null) {
+                return collectionType;
+            } else {
+
+                Datatype datatype;
+                datatype = MetadataManager.INSTANCE.getDatatype(txnCtx, function.getDataverseName(),
+                        function.getReturnType());
+                return datatype.getDatatype();
+            }
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
+        }
+    }
+
+    private static IFunctionInfo getUnnestFunctionInfo(MetadataTransactionContext txnCtx, Function function) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    private static IFunctionInfo getStatefulFunctionInfo(MetadataTransactionContext txnCtx, Function function) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    private static IFunctionInfo getAggregateFunctionInfo(MetadataTransactionContext txnCtx, Function function) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+    
+    public static void main(String args[]) throws FileNotFoundException, IOException {
+        ExternalFunctionCompilerUtil obj = new ExternalFunctionCompilerUtil();
+        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("/tmp/ecu.obj"));
+        oos.writeObject(obj);
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
index d5d4cc2..639b77a 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
@@ -40,6 +40,8 @@
         AsterixBuiltinFunctions.addDatasetFunction(AsterixBuiltinFunctions.DATASET);
         AsterixBuiltinFunctions.addUnnestFun(AsterixBuiltinFunctions.FEED_INGEST, false);
         AsterixBuiltinFunctions.addDatasetFunction(AsterixBuiltinFunctions.FEED_INGEST);
+        AsterixBuiltinFunctions.addUnnestFun(AsterixBuiltinFunctions.FEED_INTERCEPT, false);
+        AsterixBuiltinFunctions.addDatasetFunction(AsterixBuiltinFunctions.FEED_INTERCEPT);
     }
 
     public static void addMetadataBuiltinFunctions() {
@@ -129,6 +131,49 @@
                 return t2;
             }
         });
+        
+        AsterixBuiltinFunctions.addFunction(AsterixBuiltinFunctions.FEED_INTERCEPT, new IResultTypeComputer() {
+
+            @Override
+            public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+                    IMetadataProvider<?, ?> mp) throws AlgebricksException {
+                AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
+                if (f.getArguments().size() != 1) {
+                    throw new AlgebricksException("dataset arity is 1, not " + f.getArguments().size());
+                }
+                ILogicalExpression a1 = f.getArguments().get(0).getValue();
+                IAType t1 = (IAType) env.getType(a1);
+                if (t1.getTypeTag() == ATypeTag.ANY) {
+                    return BuiltinType.ANY;
+                }
+                if (t1.getTypeTag() != ATypeTag.STRING) {
+                    throw new AlgebricksException("Illegal type " + t1 + " for dataset() argument.");
+                }
+                if (a1.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+                    return BuiltinType.ANY;
+                }
+                AsterixConstantValue acv = (AsterixConstantValue) ((ConstantExpression) a1).getValue();
+                String datasetArg = ((AString) acv.getObject()).getStringValue();
+                AqlMetadataProvider metadata = ((AqlMetadataProvider) mp);
+                Pair<String, String> datasetInfo = getDatasetInfo(metadata, datasetArg);
+                String dataverseName = datasetInfo.first;
+                String datasetName = datasetInfo.second;
+                if (dataverseName == null) {
+                    throw new AlgebricksException("Unspecified dataverse!");
+                }
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
+                }
+                String tn = dataset.getItemTypeName();
+                IAType t2 = metadata.findType(dataverseName, tn);
+                if (t2 == null) {
+                    throw new AlgebricksException("No type for dataset " + datasetName);
+                }
+                return t2;
+            }
+        });
     }
 
     private static Pair<String, String> getDatasetInfo(AqlMetadataProvider metadata, String datasetArg) {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
index 7eb2f30..12b2753 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
@@ -17,8 +17,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.AsterixExternalFunctionInfo;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
@@ -72,8 +74,14 @@
             unionList.add(BuiltinType.ABOOLEAN);
             return new AUnionType(unionList, "OptionalBoolean");
         }
-        // Note: only builtin functions, for now.
-        IResultTypeComputer rtc = AsterixBuiltinFunctions.getResultTypeComputer(fi);
+        // Note: built-in functions + udfs
+        IResultTypeComputer rtc = null;
+        FunctionSignature signature = new FunctionSignature(fi.getNamespace(), fi.getName(), fi.getArity());
+        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(signature, true)) {
+            rtc = AsterixBuiltinFunctions.getResultTypeComputer(fi);
+        } else {
+            rtc = ((AsterixExternalFunctionInfo) expr.getFunctionInfo()).getResultTypeComputer();
+        }
         if (rtc == null) {
             throw new AlgebricksException("Type computer missing for " + fi);
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
index fe0086b..7cb490c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
@@ -20,15 +20,20 @@
 
 public final class AMutableUnorderedList extends AUnorderedList {
 
-    public AMutableUnorderedList(AUnorderedListType type) {
-        super(type);
-    }
+	public AMutableUnorderedList(AUnorderedListType type) {
+		super(type);
+	}
 
-    public AMutableUnorderedList(AUnorderedListType type, ArrayList<IAObject> sequence) {
-        super(type, sequence);
-    }
+	public AMutableUnorderedList(AUnorderedListType type,
+			ArrayList<IAObject> sequence) {
+		super(type, sequence);
+	}
 
-    public void add(IAObject obj) {
-        values.add(obj);
-    }
+	public void add(IAObject obj) {
+		values.add(obj);
+	}
+
+	public void clear() {
+		values.clear();
+	}
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
index 4728f162..e3be0df 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
@@ -49,6 +49,7 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.CollectionToSequenceTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ConcatNonNullTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.FieldAccessByIndexResultType;
+import edu.uci.ics.asterix.om.typecomputer.impl.FlowRecordResultTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.InjectFailureTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedCollectionMemberResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedFieldAccessByNameResultType;
@@ -193,8 +194,7 @@
             "numeric-idiv", 2);
     public final static FunctionIdentifier CARET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "caret", 2);
 
-    public final static FunctionIdentifier NUMERIC_ABS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "abs", 1);
+    public final static FunctionIdentifier NUMERIC_ABS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "abs", 1);
     public final static FunctionIdentifier NUMERIC_CEILING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "ceiling", 1);
     public final static FunctionIdentifier NUMERIC_FLOOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
@@ -242,6 +242,8 @@
     public final static FunctionIdentifier DATASET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "dataset", 1);
     public final static FunctionIdentifier FEED_INGEST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "feed-ingest", 1);
+    public final static FunctionIdentifier FEED_INTERCEPT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "feed-intercept", 1);
 
     public final static FunctionIdentifier INDEX_SEARCH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "index-search", FunctionIdentifier.VARARGS);
@@ -423,7 +425,8 @@
             "interval-overlaps", 2);
     public final static FunctionIdentifier INTERVAL_OVERLAPPED_BY = new FunctionIdentifier(
             FunctionConstants.ASTERIX_NS, "interval-overlapped-by", 2);
-    public final static FunctionIdentifier OVERLAP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "interval-overlapping", 2);
+    public final static FunctionIdentifier OVERLAP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-overlapping", 2);
     public final static FunctionIdentifier INTERVAL_STARTS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "interval-starts", 2);
     public final static FunctionIdentifier INTERVAL_STARTED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
@@ -495,6 +498,8 @@
             "inject-failure", 2);
     public final static FunctionIdentifier CAST_RECORD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "cast-record", 1);
+    public final static FunctionIdentifier FLOW_RECORD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "flow-record", 1);
     public final static FunctionIdentifier CAST_LIST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "cast-list", 1);
 
@@ -809,7 +814,6 @@
         addFunction(TYPE_OF, null); // TODO
         addPrivateFunction(UNORDERED_LIST_CONSTRUCTOR, UnorderedListConstructorResultType.INSTANCE);
         addFunction(WORD_TOKENS, new IResultTypeComputer() {
-
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
                     IMetadataProvider<?, ?> mp) throws AlgebricksException {
@@ -956,12 +960,14 @@
     static {
         datasetFunctions.add(getAsterixFunctionInfo(DATASET));
         datasetFunctions.add(getAsterixFunctionInfo(FEED_INGEST));
+        datasetFunctions.add(getAsterixFunctionInfo(FEED_INTERCEPT));
         datasetFunctions.add(getAsterixFunctionInfo(INDEX_SEARCH));
     }
 
     static {
         addUnnestFun(DATASET, false);
         addUnnestFun(FEED_INGEST, false);
+        addUnnestFun(FEED_INTERCEPT, false);
         addUnnestFun(RANGE, true);
         addUnnestFun(SCAN_COLLECTION, false);
         addUnnestFun(SUBSET_COLLECTION, false);
@@ -975,9 +981,10 @@
         return datasetFunctions.contains(getAsterixFunctionInfo(fi));
     }
 
+    /*
     public static boolean isBuiltinCompilerFunction(FunctionIdentifier fi, boolean includePrivateFunctions) {
         return builtinPublicFunctionsSet.keySet().contains(getAsterixFunctionInfo(fi));
-    }
+    }*/
 
     public static boolean isBuiltinCompilerFunction(FunctionSignature signature, boolean includePrivateFunctions) {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
index 186ca78..c536a88 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
@@ -14,11 +14,13 @@
  */
 package edu.uci.ics.asterix.om.functions;
 
+import java.io.Serializable;
+
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
 
-public class AsterixFunctionInfo implements IFunctionInfo {
+public class AsterixFunctionInfo implements IFunctionInfo, Serializable {
 
     private final FunctionIdentifier functionIdentifier;
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
index bd75f9c..3bc7792 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
@@ -14,6 +14,7 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.base;
 
+import java.io.Serializable;
 
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
@@ -21,7 +22,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
-public interface IResultTypeComputer {
+public interface IResultTypeComputer extends Serializable {
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException;
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FlowRecordResultTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FlowRecordResultTypeComputer.java
new file mode 100644
index 0000000..a982a1f
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FlowRecordResultTypeComputer.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class FlowRecordResultTypeComputer implements IResultTypeComputer {
+
+    public static final FlowRecordResultTypeComputer INSTANCE = new FlowRecordResultTypeComputer();
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        ScalarFunctionCallExpression funcExpr = (ScalarFunctionCallExpression) expression;
+        IAType type = TypeComputerUtilities.getRequiredType(funcExpr);
+        if (type == null) {
+            type = (IAType) env.getType(funcExpr.getArguments().get(0).getValue());
+        }
+        return type;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
index 6cdaea0..1791a80 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
@@ -29,82 +29,98 @@
 import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
 import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
 
 /*
  * Acts as an holder class for IndexRegistryProvider, AsterixStorageManager
  * instances that are accessed from the NCs. In addition an instance of ICCApplicationContext 
  * is stored for access by the CC.
  */
-public class AsterixAppContextInfo implements IAsterixApplicationContextInfo, IAsterixPropertiesProvider {
+public class AsterixAppContextInfo implements IAsterixApplicationContextInfo,
+		IAsterixPropertiesProvider {
 
-    private static AsterixAppContextInfo INSTANCE;
+	private static AsterixAppContextInfo INSTANCE;
 
-    private final ICCApplicationContext appCtx;
+	private final ICCApplicationContext appCtx;
 
-    private AsterixCompilerProperties compilerProperties;
-    private AsterixExternalProperties externalProperties;
-    private AsterixMetadataProperties metadataProperties;
-    private AsterixStorageProperties storageProperties;
-    private AsterixTransactionProperties txnProperties;
+	private AsterixCompilerProperties compilerProperties;
+	private AsterixExternalProperties externalProperties;
+	private AsterixMetadataProperties metadataProperties;
+	private AsterixStorageProperties storageProperties;
+	private AsterixTransactionProperties txnProperties;
+	private IHyracksClientConnection hcc;
 
-    public static void initialize(ICCApplicationContext ccAppCtx) throws AsterixException {
-        if (INSTANCE == null) {
-            INSTANCE = new AsterixAppContextInfo(ccAppCtx);
-        }
-        AsterixPropertiesAccessor propertiesAccessor = new AsterixPropertiesAccessor();
-        INSTANCE.compilerProperties = new AsterixCompilerProperties(propertiesAccessor);
-        INSTANCE.externalProperties = new AsterixExternalProperties(propertiesAccessor);
-        INSTANCE.metadataProperties = new AsterixMetadataProperties(propertiesAccessor);
-        INSTANCE.storageProperties = new AsterixStorageProperties(propertiesAccessor);
-        INSTANCE.txnProperties = new AsterixTransactionProperties(propertiesAccessor);
-        Logger.getLogger("edu.uci.ics").setLevel(INSTANCE.externalProperties.getLogLevel());
-    }
+	public static void initialize(ICCApplicationContext ccAppCtx,
+			IHyracksClientConnection hcc) throws AsterixException {
+		if (INSTANCE == null) {
+			INSTANCE = new AsterixAppContextInfo(ccAppCtx);
+		}
+		AsterixPropertiesAccessor propertiesAccessor = new AsterixPropertiesAccessor();
+		INSTANCE.compilerProperties = new AsterixCompilerProperties(
+				propertiesAccessor);
+		INSTANCE.externalProperties = new AsterixExternalProperties(
+				propertiesAccessor);
+		INSTANCE.metadataProperties = new AsterixMetadataProperties(
+				propertiesAccessor);
+		INSTANCE.storageProperties = new AsterixStorageProperties(
+				propertiesAccessor);
+		INSTANCE.txnProperties = new AsterixTransactionProperties(
+				propertiesAccessor);
+		INSTANCE.hcc = hcc;
+		Logger.getLogger("edu.uci.ics").setLevel(
+				INSTANCE.externalProperties.getLogLevel());
+	}
 
-    private AsterixAppContextInfo(ICCApplicationContext ccAppCtx) {
-        this.appCtx = ccAppCtx;
-    }
+	private AsterixAppContextInfo(ICCApplicationContext ccAppCtx) {
+		this.appCtx = ccAppCtx;
+	}
 
-    public static AsterixAppContextInfo getInstance() {
-        return INSTANCE;
-    }
+	public static AsterixAppContextInfo getInstance() {
+		return INSTANCE;
+	}
 
-    @Override
-    public ICCApplicationContext getCCApplicationContext() {
-        return appCtx;
-    }
+	@Override
+	public ICCApplicationContext getCCApplicationContext() {
+		return appCtx;
+	}
 
-    @Override
-    public AsterixStorageProperties getStorageProperties() {
-        return storageProperties;
-    }
+	@Override
+	public AsterixStorageProperties getStorageProperties() {
+		return storageProperties;
+	}
 
-    @Override
-    public AsterixTransactionProperties getTransactionProperties() {
-        return txnProperties;
-    }
+	@Override
+	public AsterixTransactionProperties getTransactionProperties() {
+		return txnProperties;
+	}
 
-    @Override
-    public AsterixCompilerProperties getCompilerProperties() {
-        return compilerProperties;
-    }
+	@Override
+	public AsterixCompilerProperties getCompilerProperties() {
+		return compilerProperties;
+	}
 
-    @Override
-    public AsterixMetadataProperties getMetadataProperties() {
-        return metadataProperties;
-    }
+	@Override
+	public AsterixMetadataProperties getMetadataProperties() {
+		return metadataProperties;
+	}
 
-    @Override
-    public AsterixExternalProperties getExternalProperties() {
-        return externalProperties;
-    }
+	@Override
+	public AsterixExternalProperties getExternalProperties() {
+		return externalProperties;
+	}
 
-    @Override
-    public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider() {
-        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
-    }
+	public IHyracksClientConnection getHcc() {
+		return hcc;
+	}
 
-    @Override
-    public IStorageManagerInterface getStorageManagerInterface() {
-        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
-    }
+	@Override
+	public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider() {
+		return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+	}
+
+	@Override
+	public IStorageManagerInterface getStorageManagerInterface() {
+		return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+	}
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java
index 6e6e09a..4943aea 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java
@@ -14,11 +14,24 @@
  */
 package edu.uci.ics.asterix.om.util;
 
+import java.io.InputStream;
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+
 /**
  * A holder class for properties related to the Asterix cluster.
  */
@@ -27,13 +40,31 @@
 
     private static final Logger LOGGER = Logger.getLogger(AsterixClusterProperties.class.getName());
 
-    private static final String IO_DEVICES = "iodevices";
-
     public static final AsterixClusterProperties INSTANCE = new AsterixClusterProperties();
+    public static final String CLUSTER_CONFIGURATION_FILE = "cluster.xml";
+
+    private static final String IO_DEVICES = "iodevices";
 
     private Map<String, Map<String, String>> ncConfiguration = new HashMap<String, Map<String, String>>();
 
+    private final Cluster cluster;
+
+    private AlgebricksAbsolutePartitionConstraint clusterPartitionConstraint;
+
     private AsterixClusterProperties() {
+        InputStream is = this.getClass().getClassLoader().getResourceAsStream(CLUSTER_CONFIGURATION_FILE);
+        if (is != null) {
+            try {
+                JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+                Unmarshaller unmarshaller = ctx.createUnmarshaller();
+                cluster = (Cluster) unmarshaller.unmarshal(is);
+
+            } catch (JAXBException e) {
+                throw new IllegalStateException("Failed to read configuration file " + CLUSTER_CONFIGURATION_FILE);
+            }
+        } else {
+            cluster = null;
+        }
     }
 
     public enum State {
@@ -43,12 +74,13 @@
 
     private State state = State.UNUSABLE;
 
-    public void removeNCConfiguration(String nodeId) {
-        state = State.UNUSABLE;
+    public synchronized void removeNCConfiguration(String nodeId) {
+        // state = State.UNUSABLE;
         ncConfiguration.remove(nodeId);
+        resetClusterPartitionConstraint();
     }
 
-    public void addNCConfiguration(String nodeId, Map<String, String> configuration) {
+    public synchronized void addNCConfiguration(String nodeId, Map<String, String> configuration) {
         ncConfiguration.put(nodeId, configuration);
         if (ncConfiguration.keySet().size() == AsterixAppContextInfo.getInstance().getMetadataProperties()
                 .getNodeNames().size()) {
@@ -57,6 +89,7 @@
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info(" Registering configuration parameters for node id" + nodeId);
         }
+        resetClusterPartitionConstraint();
     }
 
     /**
@@ -64,10 +97,11 @@
      * 
      * @param nodeId
      *            unique identifier of the Node Controller
-     * @return number of IO devices. -1 if the node id is not valid. A node id is not valid
-     *         if it does not correspond to the set of registered Node Controllers.
+     * @return number of IO devices. -1 if the node id is not valid. A node id
+     *         is not valid if it does not correspond to the set of registered
+     *         Node Controllers.
      */
-    public int getNumberOfIODevices(String nodeId) {
+    public synchronized int getNumberOfIODevices(String nodeId) {
         Map<String, String> ncConfig = ncConfiguration.get(nodeId);
         if (ncConfig == null) {
             if (LOGGER.isLoggable(Level.WARNING)) {
@@ -103,4 +137,101 @@
         return state;
     }
 
+    public Cluster getCluster() {
+        return cluster;
+    }
+
+    public Node getAvailableSubstitutionNode() {
+        List<Node> subNodes = cluster.getSubstituteNodes() == null ? null : cluster.getSubstituteNodes().getNode();
+        return subNodes == null || subNodes.isEmpty() ? null : subNodes.get(0);
+    }
+
+    public synchronized Set<String> getParticipantNodes() {
+        return ncConfiguration.keySet();
+    }
+
+    public synchronized AlgebricksPartitionConstraint getClusterLocations() {
+        if (clusterPartitionConstraint == null) {
+            resetClusterPartitionConstraint();
+        }
+        return clusterPartitionConstraint;
+    }
+
+    private synchronized void resetClusterPartitionConstraint() {
+        Map<String, String[]> stores = AsterixAppContextInfo.getInstance().getMetadataProperties().getStores();
+        ArrayList<String> locs = new ArrayList<String>();
+        for (String i : stores.keySet()) {
+            String[] nodeStores = stores.get(i);
+            int numIODevices = AsterixClusterProperties.INSTANCE.getNumberOfIODevices(i);
+            for (int j = 0; j < nodeStores.length; j++) {
+                for (int k = 0; k < numIODevices; k++) {
+                    locs.add(i);
+                }
+            }
+        }
+        String[] cluster = new String[locs.size()];
+        cluster = locs.toArray(cluster);
+        clusterPartitionConstraint = new AlgebricksAbsolutePartitionConstraint(cluster);
+    }
+
+    private static class AsterixCluster {
+
+        private final String asterixInstance;
+        private Map<String, AsterixNode> asterixNodes;
+
+        public AsterixCluster(Cluster cluster) {
+            asterixInstance = cluster.getInstanceName();
+            asterixNodes = new HashMap<String, AsterixNode>();
+            for (Node node : cluster.getNode()) {
+                AsterixNode aNode = new AsterixNode(node, AsterixNode.NodeRole.PARTICIPANT,
+                        AsterixNode.NodeState.INACTIVE);
+                asterixNodes.put(asterixInstance + "_" + node.getId(), aNode);
+            }
+
+            for (Node node : cluster.getSubstituteNodes().getNode()) {
+                AsterixNode aNode = new AsterixNode(node, AsterixNode.NodeRole.SUBSTITUTE,
+                        AsterixNode.NodeState.INACTIVE);
+                asterixNodes.put(asterixInstance + "_" + node.getId(), aNode);
+            }
+        }
+
+        private static class AsterixNode {
+
+            private final Node node;
+            private NodeRole role;
+            private NodeState state;
+
+            public enum NodeRole {
+                PARTICIPANT,
+                SUBSTITUTE
+            }
+
+            public enum NodeState {
+                ACTIVE,
+                INACTIVE
+            }
+
+            public AsterixNode(Node node, NodeRole role, NodeState state) {
+                this.node = node;
+                this.role = role;
+                this.state = state;
+            }
+
+            @Override
+            public String toString() {
+                return node.getId() + "_" + role + "_" + state;
+            }
+        }
+
+        public void notifyChangeState(String nodeId, AsterixNode.NodeRole newRole, AsterixNode.NodeState newState) {
+            AsterixNode node = asterixNodes.get(nodeId);
+            if (node != null) {
+                node.role = newRole;
+                node.state = newState;
+            } else {
+                throw new IllegalStateException("Unknown nodeId" + nodeId);
+            }
+
+        }
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FlowRecordDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FlowRecordDescriptor.java
new file mode 100644
index 0000000..81c23cd
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FlowRecordDescriptor.java
@@ -0,0 +1,74 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class FlowRecordDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new FlowRecordDescriptor();
+        }
+    };
+
+    private static final long serialVersionUID = 1L;
+    private ARecordType inputType;
+
+    public void reset(ARecordType inputType) {
+        this.inputType = inputType;
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.FLOW_RECORD;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        final ICopyEvaluatorFactory recordEvalFactory = args[0];
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                final DataOutput out = output.getDataOutput();
+                final ArrayBackedValueStorage recordBuffer = new ArrayBackedValueStorage();
+                final ICopyEvaluator recEvaluator = recordEvalFactory.createEvaluator(recordBuffer);
+
+                return new ICopyEvaluator() {
+                    // pointable allocator
+                    private PointableAllocator allocator = new PointableAllocator();
+                    final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            recordBuffer.reset();
+                            recEvaluator.evaluate(tuple);
+                            recAccessor.set(recordBuffer);
+                            out.write(recAccessor.getByteArray(), recAccessor.getStartOffset(), recAccessor.getLength());
+                        } catch (Exception ioe) {
+                            throw new AlgebricksException(ioe);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
index ecea27a..25737cd 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
@@ -151,6 +151,7 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.EndsWithDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.FieldAccessByIndexDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.FieldAccessByNameDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.FlowRecordDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.FuzzyEqDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.GetItemDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.GramTokensDescriptor;
@@ -494,6 +495,7 @@
         temp.add(InjectFailureDescriptor.FACTORY);
         temp.add(CastListDescriptor.FACTORY);
         temp.add(CastRecordDescriptor.FACTORY);
+        temp.add(FlowRecordDescriptor.FACTORY);
         temp.add(NotNullDescriptor.FACTORY);
 
         // Spatial and temporal type accessors
@@ -739,6 +741,10 @@
             }
             ((CastListDescriptor) fd).reset(rt, (AbstractCollectionType) it);
         }
+        if (fd.getIdentifier().equals(AsterixBuiltinFunctions.FLOW_RECORD)) {
+            ARecordType it = (ARecordType) TypeComputerUtilities.getInputType((AbstractFunctionCallExpression) expr);
+            ((FlowRecordDescriptor) fd).reset(it);
+        }
         if (fd.getIdentifier().equals(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR)) {
             ARecordType rt = (ARecordType) context.getType(expr);
             ((OpenRecordConstructorDescriptor) fd).reset(rt,
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
index 2322338..ab52939 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
@@ -18,6 +18,8 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.ByteBuffer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.ARecordType;
@@ -36,6 +38,8 @@
  */
 public abstract class AbstractTupleParser implements ITupleParser {
 
+    protected static Logger LOGGER = Logger.getLogger(AbstractTupleParser.class.getName());
+
     protected ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
     protected DataOutput dos = tb.getDataOutput();
     protected final FrameTupleAppender appender;
@@ -68,6 +72,7 @@
                 addTupleToFrame(writer);
             }
             if (appender.getTupleCount() > 0) {
+
                 FrameUtils.flushFrame(frame, writer);
             }
         } catch (AsterixException ae) {
diff --git a/asterix-test-framework/pom.xml b/asterix-test-framework/pom.xml
old mode 100755
new mode 100644
diff --git a/asterix-test-framework/src/main/resources/Catalog.xsd b/asterix-test-framework/src/main/resources/Catalog.xsd
old mode 100755
new mode 100644
diff --git a/asterix-tools/data/uscensus/dist.all.first.cleaned b/asterix-tools/data/uscensus/dist.all.first.cleaned
old mode 100755
new mode 100644
diff --git a/asterix-tools/data/uscensus/dist.all.last.cleaned b/asterix-tools/data/uscensus/dist.all.last.cleaned
old mode 100755
new mode 100644
diff --git a/asterix-tools/data/uscensus/dist.female.first.cleaned b/asterix-tools/data/uscensus/dist.female.first.cleaned
old mode 100755
new mode 100644
diff --git a/asterix-tools/data/uscensus/dist.male.first.cleaned b/asterix-tools/data/uscensus/dist.male.first.cleaned
old mode 100755
new mode 100644
diff --git a/asterix-tools/pom.xml b/asterix-tools/pom.xml
index 6c7db41..861dd79 100644
--- a/asterix-tools/pom.xml
+++ b/asterix-tools/pom.xml
@@ -148,6 +148,12 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-external-data</artifactId>
+			<version>0.8.1-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
 			<version>4.2.2</version>
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGenerator.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGenerator.java
new file mode 100644
index 0000000..0c93564
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGenerator.java
@@ -0,0 +1,2476 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.CharBuffer;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Random;
+import java.util.UUID;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+public class DataGenerator {
+
+    private static RandomDateGenerator randDateGen;
+    private static RandomNameGenerator randNameGen;
+    private static RandomEmploymentGenerator randEmpGen;
+    private static RandomMessageGenerator randMessageGen;
+    private static RandomLocationGenerator randLocationGen;
+
+    private static DistributionHandler fbDistHandler;
+    private static DistributionHandler twDistHandler;
+
+    private static int totalFbMessages;
+    private static int numFbOnlyUsers;
+    private static int totalTwMessages;
+    private static int numTwOnlyUsers;
+
+    private static int numCommonUsers;
+
+    private static int fbUserId;
+    private static int twUserId;
+
+    private static int fbMessageId;
+    private static int twMessageId;
+
+    private static Random random = new Random();
+
+    private static String commonUserFbSuffix = "_fb";
+    private static String commonUserTwSuffix = "_tw";
+
+    private static String outputDir;
+
+    private static PartitionConfiguration partition;
+
+    private static FacebookUser fbUser = new FacebookUser();
+    private static TwitterUser twUser = new TwitterUser();
+
+    private static FacebookMessage fbMessage = new FacebookMessage();
+    private static TweetMessage twMessage = new TweetMessage();
+
+    private static int duration;
+
+    private static DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
+
+    private static void generateFacebookOnlyUsers(int numFacebookUsers) throws IOException {
+        FileAppender appender = FileUtil.getFileAppender(outputDir + "/" + "fb_users.adm", true, true);
+        FileAppender messageAppender = FileUtil.getFileAppender(outputDir + "/" + "fb_message.adm", true, true);
+
+        for (int i = 0; i < numFacebookUsers; i++) {
+            getFacebookUser(null);
+            appender.appendToFile(fbUser.toString());
+            generateFacebookMessages(fbUser, messageAppender, -1);
+        }
+        appender.close();
+        messageAppender.close();
+    }
+
+    private static void generateTwitterOnlyUsers(int numTwitterUsers) throws IOException {
+        FileAppender appender = FileUtil.getFileAppender(outputDir + "/" + "tw_users.adm", true, true);
+        FileAppender messageAppender = FileUtil.getFileAppender(outputDir + "/" + "tw_message.adm", true, true);
+
+        for (int i = 0; i < numTwitterUsers; i++) {
+            getTwitterUser(null);
+            appender.appendToFile(twUser.toString());
+            generateTwitterMessages(twUser, messageAppender, -1);
+        }
+        appender.close();
+        messageAppender.close();
+    }
+
+    private static void generateCommonUsers() throws IOException {
+        FileAppender fbAppender = FileUtil.getFileAppender(outputDir + "/" + "fb_users.adm", true, false);
+        FileAppender twAppender = FileUtil.getFileAppender(outputDir + "/" + "tw_users.adm", true, false);
+        FileAppender fbMessageAppender = FileUtil.getFileAppender(outputDir + "/" + "fb_message.adm", true, false);
+        FileAppender twMessageAppender = FileUtil.getFileAppender(outputDir + "/" + "tw_message.adm", true, false);
+
+        for (int i = 0; i < numCommonUsers; i++) {
+            getFacebookUser(commonUserFbSuffix);
+            fbAppender.appendToFile(fbUser.toString());
+            generateFacebookMessages(fbUser, fbMessageAppender, -1);
+
+            getCorrespondingTwitterUser(fbUser);
+            twAppender.appendToFile(twUser.toString());
+            generateTwitterMessages(twUser, twMessageAppender, -1);
+        }
+
+        fbAppender.close();
+        twAppender.close();
+        fbMessageAppender.close();
+        twMessageAppender.close();
+    }
+
+    private static void generateFacebookMessages(FacebookUser user, FileAppender appender, int numMsg)
+            throws IOException {
+        Message message;
+        int numMessages = 0;
+        if (numMsg == -1) {
+            numMessages = fbDistHandler
+                    .getFromDistribution(fbUserId - partition.getTargetPartition().getFbUserKeyMin());
+        }
+        for (int i = 0; i < numMessages; i++) {
+            message = randMessageGen.getNextRandomMessage();
+            Point location = randLocationGen.getRandomPoint();
+            fbMessage.reset(fbMessageId++, user.getId(), random.nextInt(totalFbMessages + 1), location, message);
+            appender.appendToFile(fbMessage.toString());
+        }
+    }
+
+    private static void generateTwitterMessages(TwitterUser user, FileAppender appender, int numMsg) throws IOException {
+        Message message;
+        int numMessages = 0;
+        if (numMsg == -1) {
+            numMessages = twDistHandler
+                    .getFromDistribution(twUserId - partition.getTargetPartition().getTwUserKeyMin());
+        }
+
+        for (int i = 0; i < numMessages; i++) {
+            message = randMessageGen.getNextRandomMessage();
+            Point location = randLocationGen.getRandomPoint();
+            DateTime sendTime = randDateGen.getNextRandomDatetime();
+            twMessage.reset(twMessageId + "", user, location, sendTime, message.getReferredTopics(), message);
+            twMessageId++;
+            appender.appendToFile(twMessage.toString());
+        }
+    }
+
+    public static Iterator<TweetMessage> getTwitterMessageIterator() {
+        return new TweetMessageIterator(duration);
+    }
+
+    public static class TweetMessageIterator implements Iterator<TweetMessage> {
+
+        private final int duration;
+        private long startTime = 0;
+
+        public TweetMessageIterator(int duration) {
+            this.duration = duration;
+        }
+
+        @Override
+        public boolean hasNext() {
+            if (startTime == 0) {
+                startTime = System.currentTimeMillis();
+            }
+            return System.currentTimeMillis() - startTime < duration * 1000;
+        }
+
+        @Override
+        public TweetMessage next() {
+            getTwitterUser(null);
+            Message message = randMessageGen.getNextRandomMessage();
+            Point location = randLocationGen.getRandomPoint();
+            DateTime sendTime = randDateGen.getNextRandomDatetime();
+            twMessage.reset(UUID.randomUUID().toString(), twUser, location, sendTime, message.getReferredTopics(),
+                    message);
+            twMessageId++;
+            if (twUserId > numTwOnlyUsers) {
+                twUserId = 1;
+            }
+            return twMessage;
+
+        }
+
+        @Override
+        public void remove() {
+            // TODO Auto-generated method stub
+
+        }
+
+    }
+
+    public static class InitializationInfo {
+        public Date startDate = new Date(1, 1, 2005);
+        public Date endDate = new Date(8, 20, 2012);
+        public String[] lastNames = DataGenerator.lastNames;
+        public String[] firstNames = DataGenerator.firstNames;
+        public String[] vendors = DataGenerator.vendors;
+        public String[] jargon = DataGenerator.jargon;
+        public String[] org_list = DataGenerator.org_list;
+        public int percentEmployed = 90;
+        public Date employmentStartDate = new Date(1, 1, 2000);
+        public Date employmentEndDate = new Date(31, 12, 2012);
+        public int totalFbMessages;
+        public int numFbOnlyUsers;
+        public int totalTwMessages;
+        public int numTwOnlyUsers = 5000;
+        public int numCommonUsers;
+        public int fbUserIdMin;
+        public int fbMessageIdMin;
+        public int twUserIdMin;
+        public int twMessageIdMin;
+        public int timeDurationInSecs = 60;
+
+    }
+
+    public static void initialize(InitializationInfo info) {
+        randDateGen = new RandomDateGenerator(info.startDate, info.endDate);
+        randNameGen = new RandomNameGenerator(info.firstNames, info.lastNames);
+        randEmpGen = new RandomEmploymentGenerator(info.percentEmployed, info.employmentStartDate,
+                info.employmentEndDate, info.org_list);
+        randLocationGen = new RandomLocationGenerator(24, 49, 66, 98);
+        randMessageGen = new RandomMessageGenerator(info.vendors, info.jargon);
+        fbDistHandler = new DistributionHandler(info.totalFbMessages, 0.5, info.numFbOnlyUsers + info.numCommonUsers);
+        twDistHandler = new DistributionHandler(info.totalTwMessages, 0.5, info.numTwOnlyUsers + info.numCommonUsers);
+        fbUserId = info.fbUserIdMin;
+        twUserId = info.twUserIdMin;
+
+        fbMessageId = info.fbMessageIdMin;
+        twMessageId = info.fbMessageIdMin;
+        duration = info.timeDurationInSecs;
+    }
+
+    public static void main(String args[]) throws Exception {
+
+        String controllerInstallDir = null;
+        if (args.length < 2) {
+            printUsage();
+            System.exit(1);
+        } else {
+            controllerInstallDir = args[0];
+            String partitionConfXML = controllerInstallDir + "/output/partition-conf.xml";
+            String partitionName = args[1];
+            partition = XMLUtil.getPartitionConfiguration(partitionConfXML, partitionName);
+        }
+
+        // 1
+        randDateGen = new RandomDateGenerator(new Date(1, 1, 2005), new Date(8, 20, 2012));
+
+        String firstNameFile = controllerInstallDir + "/metadata/firstNames.txt";
+        String lastNameFile = controllerInstallDir + "/metadata/lastNames.txt";
+        String vendorFile = controllerInstallDir + "/metadata/vendors.txt";
+        String jargonFile = controllerInstallDir + "/metadata/jargon.txt";
+        String orgList = controllerInstallDir + "/metadata/org_list.txt";
+
+        randNameGen = new RandomNameGenerator(firstNameFile, lastNameFile);
+        randEmpGen = new RandomEmploymentGenerator(90, new Date(1, 1, 2000), new Date(8, 20, 2012), orgList);
+        randLocationGen = new RandomLocationGenerator(24, 49, 66, 98);
+        randMessageGen = new RandomMessageGenerator(vendorFile, jargonFile);
+
+        totalFbMessages = partition.getTargetPartition().getFbMessageIdMax()
+                - partition.getTargetPartition().getFbMessageIdMin() + 1;
+        numFbOnlyUsers = (partition.getTargetPartition().getFbUserKeyMax()
+                - partition.getTargetPartition().getFbUserKeyMin() + 1)
+                - partition.getTargetPartition().getCommonUsers();
+
+        totalTwMessages = partition.getTargetPartition().getTwMessageIdMax()
+                - partition.getTargetPartition().getTwMessageIdMin() + 1;
+        numTwOnlyUsers = (partition.getTargetPartition().getTwUserKeyMax()
+                - partition.getTargetPartition().getTwUserKeyMin() + 1)
+                - partition.getTargetPartition().getCommonUsers();
+
+        numCommonUsers = partition.getTargetPartition().getCommonUsers();
+        fbDistHandler = new DistributionHandler(totalFbMessages, 0.5, numFbOnlyUsers + numCommonUsers);
+        twDistHandler = new DistributionHandler(totalTwMessages, 0.5, numTwOnlyUsers + numCommonUsers);
+
+        fbUserId = partition.getTargetPartition().getFbUserKeyMin();
+        twUserId = partition.getTargetPartition().getTwUserKeyMin();
+
+        fbMessageId = partition.getTargetPartition().getFbMessageIdMin();
+        twMessageId = partition.getTargetPartition().getTwMessageIdMin();
+
+        outputDir = partition.getSourcePartition().getPath();
+        generateData();
+    }
+
+    public static void printUsage() {
+        System.out.println(" Error: Invalid number of arguments ");
+        System.out.println(" Usage :" + " DataGenerator <path to configuration file> <partition name> ");
+    }
+
+    public static void generateData() throws IOException {
+        generateFacebookOnlyUsers(numFbOnlyUsers);
+        generateTwitterOnlyUsers(numTwOnlyUsers);
+        generateCommonUsers();
+        System.out.println("Partition :" + partition.getTargetPartition().getName() + " finished");
+    }
+
+    public static void getFacebookUser(String usernameSuffix) {
+        String suggestedName = randNameGen.getRandomName();
+        String[] nameComponents = suggestedName.split(" ");
+        String name = nameComponents[0] + nameComponents[1];
+        if (usernameSuffix != null) {
+            name = name + usernameSuffix;
+        }
+        String alias = nameComponents[0];
+        String userSince = randDateGen.getNextRandomDatetime().toString();
+        int numFriends = random.nextInt(25);
+        int[] friendIds = RandomUtil.getKFromN(numFriends, (numFbOnlyUsers + numCommonUsers));
+        Employment emp = randEmpGen.getRandomEmployment();
+        fbUser.reset(fbUserId++, alias, name, userSince, friendIds, emp);
+    }
+
+    public static void getTwitterUser(String usernameSuffix) {
+        String suggestedName = randNameGen.getRandomName();
+        String[] nameComponents = suggestedName.split(" ");
+        String screenName = nameComponents[0] + nameComponents[1] + randNameGen.getRandomNameSuffix();
+        String name = suggestedName;
+        if (usernameSuffix != null) {
+            name = name + usernameSuffix;
+        }
+        int numFriends = random.nextInt((int) (100)); // draw from Zipfian
+        int statusesCount = random.nextInt(500); // draw from Zipfian
+        int followersCount = random.nextInt((int) (200));
+        twUser.reset(screenName, numFriends, statusesCount, name, followersCount);
+        twUserId++;
+    }
+
+    public static void getCorrespondingTwitterUser(FacebookUser fbUser) {
+        String screenName = fbUser.getName().substring(0, fbUser.getName().lastIndexOf(commonUserFbSuffix))
+                + commonUserTwSuffix;
+        String name = screenName.split(" ")[0];
+        int numFriends = random.nextInt((int) ((numTwOnlyUsers + numCommonUsers)));
+        int statusesCount = random.nextInt(500); // draw from Zipfian
+        int followersCount = random.nextInt((int) (numTwOnlyUsers + numCommonUsers));
+        twUser.reset(screenName, numFriends, statusesCount, name, followersCount);
+    }
+
+    public static class RandomDateGenerator {
+
+        private final Date startDate;
+        private final Date endDate;
+        private final Random random = new Random();
+        private final int yearDifference;
+        private Date workingDate;
+        private Date recentDate;
+        private DateTime dateTime;
+
+        public RandomDateGenerator(Date startDate, Date endDate) {
+            this.startDate = startDate;
+            this.endDate = endDate;
+            yearDifference = endDate.getYear() - startDate.getYear() + 1;
+            workingDate = new Date();
+            recentDate = new Date();
+            dateTime = new DateTime();
+        }
+
+        public Date getStartDate() {
+            return startDate;
+        }
+
+        public Date getEndDate() {
+            return endDate;
+        }
+
+        public Date getNextRandomDate() {
+            int year = random.nextInt(yearDifference) + startDate.getYear();
+            int month;
+            int day;
+            if (year == endDate.getYear()) {
+                month = random.nextInt(endDate.getMonth()) + 1;
+                if (month == endDate.getMonth()) {
+                    day = random.nextInt(endDate.getDay()) + 1;
+                } else {
+                    day = random.nextInt(28) + 1;
+                }
+            } else {
+                month = random.nextInt(12) + 1;
+                day = random.nextInt(28) + 1;
+            }
+            workingDate.reset(month, day, year);
+            return workingDate;
+        }
+
+        public DateTime getNextRandomDatetime() {
+            Date randomDate = getNextRandomDate();
+            dateTime.reset(randomDate);
+            return dateTime;
+        }
+
+        public Date getNextRecentDate(Date date) {
+            int year = date.getYear()
+                    + (date.getYear() == endDate.getYear() ? 0 : random.nextInt(endDate.getYear() - date.getYear()));
+            int month = (year == endDate.getYear()) ? date.getMonth() == endDate.getMonth() ? (endDate.getMonth())
+                    : (date.getMonth() + random.nextInt(endDate.getMonth() - date.getMonth())) : random.nextInt(12) + 1;
+
+            int day = (year == endDate.getYear()) ? month == endDate.getMonth() ? date.getDay() == endDate.getDay() ? endDate
+                    .getDay() : date.getDay() + random.nextInt(endDate.getDay() - date.getDay())
+                    : random.nextInt(28) + 1
+                    : random.nextInt(28) + 1;
+            recentDate.reset(month, day, year);
+            return recentDate;
+        }
+
+        public static void main(String args[]) throws Exception {
+            Date date = new Date(2, 20, 2012);
+            RandomDateGenerator dgen = new RandomDateGenerator(new Date(1, 1, 2005), new Date(8, 20, 2012));
+            while (true) {
+                Date nextDate = dgen.getNextRandomDate();
+                if (nextDate.getDay() == 0) {
+                    throw new Exception("invalid date " + nextDate);
+                }
+
+                // System.out.println(" original date: " + date);
+                System.out.println(nextDate);
+            }
+        }
+    }
+
+    public static class DateTime extends Date {
+
+        private String hour = "10";
+        private String min = "10";
+        private String sec = "00";
+        private long chrononTime;
+
+        public DateTime(int month, int day, int year, String hour, String min, String sec) {
+            super(month, day, year);
+            this.hour = hour;
+            this.min = min;
+            this.sec = sec;
+            chrononTime = new java.util.Date(year, month, day, Integer.parseInt(hour), Integer.parseInt(min),
+                    Integer.parseInt(sec)).getTime();
+        }
+
+        public void reset(int month, int day, int year, String hour, String min, String sec) {
+            super.setDay(month);
+            super.setDay(day);
+            super.setYear(year);
+            this.hour = hour;
+            this.min = min;
+            this.sec = sec;
+            chrononTime = new java.util.Date(year, month, day, Integer.parseInt(hour), Integer.parseInt(min),
+                    Integer.parseInt(sec)).getTime();
+        }
+
+        public DateTime() {
+        }
+
+        public DateTime(Date date) {
+            super(date.getMonth(), date.getDay(), date.getYear());
+        }
+
+        public void reset(Date date) {
+            reset(date.getMonth(), date.getDay(), date.getYear());
+        }
+
+        public DateTime(Date date, int hour, int min, int sec) {
+            super(date.getMonth(), date.getDay(), date.getYear());
+            this.hour = (hour < 10) ? "0" : "" + hour;
+            this.min = (min < 10) ? "0" : "" + min;
+            this.sec = (sec < 10) ? "0" : "" + sec;
+        }
+
+        public long getChrononTime() {
+            return chrononTime;
+        }
+
+        public String getHour() {
+            return hour;
+        }
+
+        public String getMin() {
+            return min;
+        }
+
+        public String getSec() {
+            return sec;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("datetime");
+            builder.append("(\"");
+            builder.append(super.getYear());
+            builder.append("-");
+            builder.append(super.getMonth() < 10 ? "0" + super.getMonth() : super.getMonth());
+            builder.append("-");
+            builder.append(super.getDay() < 10 ? "0" + super.getDay() : super.getDay());
+            builder.append("T");
+            builder.append(hour + ":" + min + ":" + sec);
+            builder.append("\")");
+            return builder.toString();
+        }
+    }
+
+    public static class Message {
+
+        private char[] message = new char[500];
+        private List<String> referredTopics;
+        private int length;
+
+        public Message(char[] m, List<String> referredTopics) {
+            System.arraycopy(m, 0, message, 0, m.length);
+            length = m.length;
+            this.referredTopics = referredTopics;
+        }
+
+        public Message() {
+            referredTopics = new ArrayList<String>();
+            length = 0;
+        }
+
+        public char[] getMessage() {
+            return message;
+        }
+
+        public List<String> getReferredTopics() {
+            return referredTopics;
+        }
+
+        public void reset(char[] m, int offset, int length, List<String> referredTopics) {
+            System.arraycopy(m, offset, message, 0, length);
+            this.length = length;
+            this.referredTopics = referredTopics;
+        }
+
+        public int getLength() {
+            return length;
+        }
+
+        public char charAt(int index) {
+            return message[index];
+        }
+
+    }
+
+    public static class Point {
+
+        private float latitude;
+        private float longitude;
+
+        public float getLatitude() {
+            return latitude;
+        }
+
+        public float getLongitude() {
+            return longitude;
+        }
+
+        public Point(float latitude, float longitude) {
+            this.latitude = latitude;
+            this.longitude = longitude;
+        }
+
+        public void reset(float latitude, float longitude) {
+            this.latitude = latitude;
+            this.longitude = longitude;
+        }
+
+        public Point() {
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("point(\"" + latitude + "," + longitude + "\")");
+            return builder.toString();
+        }
+    }
+
+    public static class RandomNameGenerator {
+
+        private String[] firstNames;
+        private String[] lastNames;
+
+        private final Random random = new Random();
+
+        private final String[] connectors = new String[] { "_", "#", "$", "@" };
+
+        public RandomNameGenerator(String firstNameFilePath, String lastNameFilePath) throws IOException {
+            firstNames = FileUtil.listyFile(new File(firstNameFilePath)).toArray(new String[] {});
+            lastNames = FileUtil.listyFile(new File(lastNameFilePath)).toArray(new String[] {});
+        }
+
+        public RandomNameGenerator(String[] firstNames, String[] lastNames) {
+            this.firstNames = firstNames;
+            this.lastNames = lastNames;
+        }
+
+        public String getRandomName() {
+            String name;
+            name = getSuggestedName();
+            return name;
+
+        }
+
+        private String getSuggestedName() {
+            int firstNameIndex = random.nextInt(firstNames.length);
+            int lastNameIndex = random.nextInt(lastNames.length);
+            String suggestedName = firstNames[firstNameIndex] + " " + lastNames[lastNameIndex];
+            return suggestedName;
+        }
+
+        public String getRandomNameSuffix() {
+            return connectors[random.nextInt(connectors.length)] + random.nextInt(1000);
+        }
+    }
+
+    public static class RandomMessageGenerator {
+
+        private final MessageTemplate messageTemplate;
+
+        public RandomMessageGenerator(String vendorFilePath, String jargonFilePath) throws IOException {
+            List<String> vendors = FileUtil.listyFile(new File(vendorFilePath));
+            List<String> jargon = FileUtil.listyFile(new File(jargonFilePath));
+            this.messageTemplate = new MessageTemplate(vendors, jargon);
+        }
+
+        public RandomMessageGenerator(String[] vendors, String[] jargon) {
+            List<String> vendorList = new ArrayList<String>();
+            for (String v : vendors) {
+                vendorList.add(v);
+            }
+            List<String> jargonList = new ArrayList<String>();
+            for (String j : jargon) {
+                jargonList.add(j);
+            }
+            this.messageTemplate = new MessageTemplate(vendorList, jargonList);
+        }
+
+        public Message getNextRandomMessage() {
+            return messageTemplate.getNextMessage();
+        }
+    }
+
+    public static class AbstractMessageTemplate {
+
+        protected final Random random = new Random();
+
+        protected String[] positiveVerbs = new String[] { "like", "love" };
+        protected String[] negativeVerbs = new String[] { "dislike", "hate", "can't stand" };
+
+        protected String[] negativeAdjectives = new String[] { "horrible", "bad", "terrible", "OMG" };
+        protected String[] postiveAdjectives = new String[] { "good", "awesome", "amazing", "mind-blowing" };
+
+        protected String[] otherWords = new String[] { "the", "its" };
+    }
+
+    public static class MessageTemplate extends AbstractMessageTemplate {
+
+        private List<String> vendors;
+        private List<String> jargon;
+        private CharBuffer buffer;
+        private List<String> referredTopics;
+        private Message message = new Message();
+
+        public MessageTemplate(List<String> vendors, List<String> jargon) {
+            this.vendors = vendors;
+            this.jargon = jargon;
+            buffer = CharBuffer.allocate(2500);
+            referredTopics = new ArrayList<String>();
+        }
+
+        public Message getNextMessage() {
+            buffer.position(0);
+            buffer.limit(2500);
+            referredTopics.clear();
+            boolean isPositive = random.nextBoolean();
+            String[] verbArray = isPositive ? positiveVerbs : negativeVerbs;
+            String[] adjectiveArray = isPositive ? postiveAdjectives : negativeAdjectives;
+            String verb = verbArray[random.nextInt(verbArray.length)];
+            String adjective = adjectiveArray[random.nextInt(adjectiveArray.length)];
+
+            buffer.put(" ");
+            buffer.put(verb);
+            buffer.put(" ");
+            String vendor = vendors.get(random.nextInt(vendors.size()));
+            referredTopics.add(vendor);
+            buffer.append(vendor);
+            buffer.append(" ");
+            buffer.append(otherWords[random.nextInt(otherWords.length)]);
+            buffer.append(" ");
+            String jargonTerm = jargon.get(random.nextInt(jargon.size()));
+            referredTopics.add(jargonTerm);
+            buffer.append(jargonTerm);
+            buffer.append(" is ");
+            buffer.append(adjective);
+            if (random.nextBoolean()) {
+                buffer.append(isPositive ? ":)" : ":(");
+            }
+
+            buffer.flip();
+            message.reset(buffer.array(), 0, buffer.limit(), referredTopics);
+            return message;
+        }
+    }
+
+    public static class RandomUtil {
+
+        public static Random random = new Random();
+
+        public static int[] getKFromN(int k, int n) {
+            int[] result = new int[k];
+            int cnt = 0;
+            HashSet<Integer> values = new HashSet<Integer>();
+            while (cnt < k) {
+                int val = random.nextInt(n + 1);
+                if (values.contains(val)) {
+                    continue;
+                }
+
+                result[cnt++] = val;
+                values.add(val);
+            }
+            return result;
+        }
+    }
+
+    public static class FileUtil {
+
+        public static List<String> listyFile(File file) throws IOException {
+
+            BufferedReader reader = new BufferedReader(new FileReader(file));
+            String line;
+            List<String> list = new ArrayList<String>();
+            while (true) {
+                line = reader.readLine();
+                if (line == null) {
+                    break;
+                }
+                list.add(line);
+            }
+            return list;
+        }
+
+        public static FileAppender getFileAppender(String filePath, boolean createIfNotExists, boolean overwrite)
+                throws IOException {
+            return new FileAppender(filePath, createIfNotExists, overwrite);
+        }
+    }
+
+    public static class FileAppender {
+
+        private final BufferedWriter writer;
+
+        public FileAppender(String filePath, boolean createIfNotExists, boolean overwrite) throws IOException {
+            File file = new File(filePath);
+            if (!file.exists()) {
+                if (createIfNotExists) {
+                    new File(file.getParent()).mkdirs();
+                } else {
+                    throw new IOException("path " + filePath + " does not exists");
+                }
+            }
+            this.writer = new BufferedWriter(new FileWriter(file, !overwrite));
+        }
+
+        public void appendToFile(String content) throws IOException {
+            writer.append(content);
+            writer.append("\n");
+        }
+
+        public void close() throws IOException {
+            writer.close();
+        }
+    }
+
+    public static class RandomEmploymentGenerator {
+
+        private final int percentEmployed;
+        private final Random random = new Random();
+        private final RandomDateGenerator randDateGen;
+        private final List<String> organizations;
+        private Employment emp;
+
+        public RandomEmploymentGenerator(int percentEmployed, Date beginEmpDate, Date endEmpDate, String orgListPath)
+                throws IOException {
+            this.percentEmployed = percentEmployed;
+            this.randDateGen = new RandomDateGenerator(beginEmpDate, endEmpDate);
+            organizations = FileUtil.listyFile(new File(orgListPath));
+            emp = new Employment();
+        }
+
+        public RandomEmploymentGenerator(int percentEmployed, Date beginEmpDate, Date endEmpDate, String[] orgList) {
+            this.percentEmployed = percentEmployed;
+            this.randDateGen = new RandomDateGenerator(beginEmpDate, endEmpDate);
+            organizations = new ArrayList<String>();
+            for (String org : orgList) {
+                organizations.add(org);
+            }
+            emp = new Employment();
+        }
+
+        public Employment getRandomEmployment() {
+            int empployed = random.nextInt(100) + 1;
+            boolean isEmployed = false;
+            if (empployed <= percentEmployed) {
+                isEmployed = true;
+            }
+            Date startDate = randDateGen.getNextRandomDate();
+            Date endDate = null;
+            if (!isEmployed) {
+                endDate = randDateGen.getNextRecentDate(startDate);
+            }
+            String org = organizations.get(random.nextInt(organizations.size()));
+            emp.reset(org, startDate, endDate);
+            return emp;
+        }
+    }
+
+    public static class RandomLocationGenerator {
+
+        private Random random = new Random();
+
+        private final int beginLat;
+        private final int endLat;
+        private final int beginLong;
+        private final int endLong;
+
+        private Point point;
+
+        public RandomLocationGenerator(int beginLat, int endLat, int beginLong, int endLong) {
+            this.beginLat = beginLat;
+            this.endLat = endLat;
+            this.beginLong = beginLong;
+            this.endLong = endLong;
+            this.point = new Point();
+        }
+
+        public Point getRandomPoint() {
+            int latMajor = beginLat + random.nextInt(endLat - beginLat);
+            int latMinor = random.nextInt(100);
+            float latitude = latMajor + ((float) latMinor) / 100;
+
+            int longMajor = beginLong + random.nextInt(endLong - beginLong);
+            int longMinor = random.nextInt(100);
+            float longitude = longMajor + ((float) longMinor) / 100;
+
+            point.reset(latitude, longitude);
+            return point;
+        }
+
+    }
+
+    public static class PartitionConfiguration {
+
+        private final TargetPartition targetPartition;
+        private final SourcePartition sourcePartition;
+
+        public PartitionConfiguration(SourcePartition sourcePartition, TargetPartition targetPartition) {
+            this.sourcePartition = sourcePartition;
+            this.targetPartition = targetPartition;
+        }
+
+        public TargetPartition getTargetPartition() {
+            return targetPartition;
+        }
+
+        public SourcePartition getSourcePartition() {
+            return sourcePartition;
+        }
+
+    }
+
+    public static class SourcePartition {
+
+        private final String name;
+        private final String host;
+        private final String path;
+
+        public SourcePartition(String name, String host, String path) {
+            this.name = name;
+            this.host = host;
+            this.path = path;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public String getHost() {
+            return host;
+        }
+
+        public String getPath() {
+            return path;
+        }
+    }
+
+    public static class TargetPartition {
+        private final String name;
+        private final String host;
+        private final String path;
+        private final int fbUserKeyMin;
+        private final int fbUserKeyMax;
+        private final int twUserKeyMin;
+        private final int twUserKeyMax;
+        private final int fbMessageIdMin;
+        private final int fbMessageIdMax;
+        private final int twMessageIdMin;
+        private final int twMessageIdMax;
+        private final int commonUsers;
+
+        public TargetPartition(String partitionName, String host, String path, int fbUserKeyMin, int fbUserKeyMax,
+                int twUserKeyMin, int twUserKeyMax, int fbMessageIdMin, int fbMessageIdMax, int twMessageIdMin,
+                int twMessageIdMax, int commonUsers) {
+            this.name = partitionName;
+            this.host = host;
+            this.path = path;
+            this.fbUserKeyMin = fbUserKeyMin;
+            this.fbUserKeyMax = fbUserKeyMax;
+            this.twUserKeyMin = twUserKeyMin;
+            this.twUserKeyMax = twUserKeyMax;
+            this.twMessageIdMin = twMessageIdMin;
+            this.twMessageIdMax = twMessageIdMax;
+            this.fbMessageIdMin = fbMessageIdMin;
+            this.fbMessageIdMax = fbMessageIdMax;
+            this.commonUsers = commonUsers;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append(name);
+            builder.append(" ");
+            builder.append(host);
+            builder.append("\n");
+            builder.append(path);
+            builder.append("\n");
+            builder.append("fbUser:key:min");
+            builder.append(fbUserKeyMin);
+
+            builder.append("\n");
+            builder.append("fbUser:key:max");
+            builder.append(fbUserKeyMax);
+
+            builder.append("\n");
+            builder.append("twUser:key:min");
+            builder.append(twUserKeyMin);
+
+            builder.append("\n");
+            builder.append("twUser:key:max");
+            builder.append(twUserKeyMax);
+
+            builder.append("\n");
+            builder.append("fbMessage:key:min");
+            builder.append(fbMessageIdMin);
+
+            builder.append("\n");
+            builder.append("fbMessage:key:max");
+            builder.append(fbMessageIdMax);
+
+            builder.append("\n");
+            builder.append("twMessage:key:min");
+            builder.append(twMessageIdMin);
+
+            builder.append("\n");
+            builder.append("twMessage:key:max");
+            builder.append(twMessageIdMax);
+
+            builder.append("\n");
+            builder.append("twMessage:key:max");
+            builder.append(twMessageIdMax);
+
+            builder.append("\n");
+            builder.append("commonUsers");
+            builder.append(commonUsers);
+
+            return new String(builder);
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public String getHost() {
+            return host;
+        }
+
+        public int getFbUserKeyMin() {
+            return fbUserKeyMin;
+        }
+
+        public int getFbUserKeyMax() {
+            return fbUserKeyMax;
+        }
+
+        public int getTwUserKeyMin() {
+            return twUserKeyMin;
+        }
+
+        public int getTwUserKeyMax() {
+            return twUserKeyMax;
+        }
+
+        public int getFbMessageIdMin() {
+            return fbMessageIdMin;
+        }
+
+        public int getFbMessageIdMax() {
+            return fbMessageIdMax;
+        }
+
+        public int getTwMessageIdMin() {
+            return twMessageIdMin;
+        }
+
+        public int getTwMessageIdMax() {
+            return twMessageIdMax;
+        }
+
+        public int getCommonUsers() {
+            return commonUsers;
+        }
+
+        public String getPath() {
+            return path;
+        }
+    }
+
+    public static class Employment {
+
+        private String organization;
+        private Date startDate;
+        private Date endDate;
+
+        public Employment(String organization, Date startDate, Date endDate) {
+            this.organization = organization;
+            this.startDate = startDate;
+            this.endDate = endDate;
+        }
+
+        public Employment() {
+        }
+
+        public void reset(String organization, Date startDate, Date endDate) {
+            this.organization = organization;
+            this.startDate = startDate;
+            this.endDate = endDate;
+        }
+
+        public String getOrganization() {
+            return organization;
+        }
+
+        public Date getStartDate() {
+            return startDate;
+        }
+
+        public Date getEndDate() {
+            return endDate;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder("");
+            builder.append("{");
+            builder.append("\"organization-name\":");
+            builder.append("\"" + organization + "\"");
+            builder.append(",");
+            builder.append("\"start-date\":");
+            builder.append(startDate);
+            if (endDate != null) {
+                builder.append(",");
+                builder.append("\"end-date\":");
+                builder.append(endDate);
+            }
+            builder.append("}");
+            return new String(builder);
+        }
+
+    }
+
+    public static class FacebookMessage {
+
+        private int messageId;
+        private int authorId;
+        private int inResponseTo;
+        private Point senderLocation;
+        private Message message;
+
+        public int getMessageId() {
+            return messageId;
+        }
+
+        public int getAuthorID() {
+            return authorId;
+        }
+
+        public Point getSenderLocation() {
+            return senderLocation;
+        }
+
+        public Message getMessage() {
+            return message;
+        }
+
+        public int getInResponseTo() {
+            return inResponseTo;
+        }
+
+        public FacebookMessage() {
+
+        }
+
+        public FacebookMessage(int messageId, int authorId, int inResponseTo, Point senderLocation, Message message) {
+            this.messageId = messageId;
+            this.authorId = authorId;
+            this.inResponseTo = inResponseTo;
+            this.senderLocation = senderLocation;
+            this.message = message;
+        }
+
+        public void reset(int messageId, int authorId, int inResponseTo, Point senderLocation, Message message) {
+            this.messageId = messageId;
+            this.authorId = authorId;
+            this.inResponseTo = inResponseTo;
+            this.senderLocation = senderLocation;
+            this.message = message;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("{");
+            builder.append("\"message-id\":");
+            builder.append(messageId);
+            builder.append(",");
+            builder.append("\"author-id\":");
+            builder.append(authorId);
+            builder.append(",");
+            builder.append("\"in-response-to\":");
+            builder.append(inResponseTo);
+            builder.append(",");
+            builder.append("\"sender-location\":");
+            builder.append(senderLocation);
+            builder.append(",");
+            builder.append("\"message\":");
+            builder.append("\"");
+            for (int i = 0; i < message.getLength(); i++) {
+                builder.append(message.charAt(i));
+            }
+            builder.append("\"");
+            builder.append("}");
+            return new String(builder);
+        }
+    }
+
+    public static class FacebookUser {
+
+        private int id;
+        private String alias;
+        private String name;
+        private String userSince;
+        private int[] friendIds;
+        private Employment employment;
+
+        public FacebookUser() {
+
+        }
+
+        public FacebookUser(int id, String alias, String name, String userSince, int[] friendIds, Employment employment) {
+            this.id = id;
+            this.alias = alias;
+            this.name = name;
+            this.userSince = userSince;
+            this.friendIds = friendIds;
+            this.employment = employment;
+        }
+
+        public int getId() {
+            return id;
+        }
+
+        public String getAlias() {
+            return alias;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public String getUserSince() {
+            return userSince;
+        }
+
+        public int[] getFriendIds() {
+            return friendIds;
+        }
+
+        public Employment getEmployment() {
+            return employment;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("{");
+            builder.append("\"id\":" + id);
+            builder.append(",");
+            builder.append("\"alias\":" + "\"" + alias + "\"");
+            builder.append(",");
+            builder.append("\"name\":" + "\"" + name + "\"");
+            builder.append(",");
+            builder.append("\"user-since\":" + userSince);
+            builder.append(",");
+            builder.append("\"friend-ids\":");
+            builder.append("{{");
+            for (int i = 0; i < friendIds.length; i++) {
+                builder.append(friendIds[i]);
+                builder.append(",");
+            }
+            if (friendIds.length > 0) {
+                builder.deleteCharAt(builder.lastIndexOf(","));
+            }
+            builder.append("}}");
+            builder.append(",");
+            builder.append("\"employment\":");
+            builder.append("[");
+            builder.append(employment.toString());
+            builder.append("]");
+            builder.append("}");
+            return builder.toString();
+        }
+
+        public void setId(int id) {
+            this.id = id;
+        }
+
+        public void setAlias(String alias) {
+            this.alias = alias;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+        public void setUserSince(String userSince) {
+            this.userSince = userSince;
+        }
+
+        public void setFriendIds(int[] friendIds) {
+            this.friendIds = friendIds;
+        }
+
+        public void setEmployment(Employment employment) {
+            this.employment = employment;
+        }
+
+        public void reset(int id, String alias, String name, String userSince, int[] friendIds, Employment employment) {
+            this.id = id;
+            this.alias = alias;
+            this.name = name;
+            this.userSince = userSince;
+            this.friendIds = friendIds;
+            this.employment = employment;
+        }
+    }
+
+    public static class TweetMessage {
+
+        private String tweetid;
+        private TwitterUser user;
+        private Point senderLocation;
+        private DateTime sendTime;
+        private List<String> referredTopics;
+        private Message messageText;
+
+        public TweetMessage() {
+
+        }
+
+        public TweetMessage(String tweetid, TwitterUser user, Point senderLocation, DateTime sendTime,
+                List<String> referredTopics, Message messageText) {
+            this.tweetid = tweetid;
+            this.user = user;
+            this.senderLocation = senderLocation;
+            this.sendTime = sendTime;
+            this.referredTopics = referredTopics;
+            this.messageText = messageText;
+        }
+
+        public void reset(String tweetid, TwitterUser user, Point senderLocation, DateTime sendTime,
+                List<String> referredTopics, Message messageText) {
+            this.tweetid = tweetid;
+            this.user = user;
+            this.senderLocation = senderLocation;
+            this.sendTime = sendTime;
+            this.referredTopics = referredTopics;
+            this.messageText = messageText;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("{");
+            builder.append("\"tweetid\":");
+            builder.append("\"" + tweetid + "\"");
+            builder.append(",");
+            builder.append("\"user\":");
+            builder.append(user);
+            builder.append(",");
+            builder.append("\"sender-location\":");
+            builder.append(senderLocation);
+            builder.append(",");
+            builder.append("\"send-time\":");
+            builder.append(sendTime);
+            builder.append(",");
+            builder.append("\"referred-topics\":");
+            builder.append("{{");
+            for (String topic : referredTopics) {
+                builder.append("\"" + topic + "\"");
+                builder.append(",");
+            }
+            if (referredTopics.size() > 0) {
+                builder.deleteCharAt(builder.lastIndexOf(","));
+            }
+            builder.append("}}");
+            builder.append(",");
+            builder.append("\"message-text\":");
+            builder.append("\"");
+            for (int i = 0; i < messageText.getLength(); i++) {
+                builder.append(messageText.charAt(i));
+            }
+            builder.append("\"");
+            builder.append("}");
+            return new String(builder);
+        }
+
+        public String getTweetid() {
+            return tweetid;
+        }
+
+        public void setTweetid(String tweetid) {
+            this.tweetid = tweetid;
+        }
+
+        public TwitterUser getUser() {
+            return user;
+        }
+
+        public void setUser(TwitterUser user) {
+            this.user = user;
+        }
+
+        public Point getSenderLocation() {
+            return senderLocation;
+        }
+
+        public void setSenderLocation(Point senderLocation) {
+            this.senderLocation = senderLocation;
+        }
+
+        public DateTime getSendTime() {
+            return sendTime;
+        }
+
+        public void setSendTime(DateTime sendTime) {
+            this.sendTime = sendTime;
+        }
+
+        public List<String> getReferredTopics() {
+            return referredTopics;
+        }
+
+        public void setReferredTopics(List<String> referredTopics) {
+            this.referredTopics = referredTopics;
+        }
+
+        public Message getMessageText() {
+            return messageText;
+        }
+
+        public void setMessageText(Message messageText) {
+            this.messageText = messageText;
+        }
+
+    }
+
+    public static class TwitterUser {
+
+        private String screenName;
+        private String lang = "en";
+        private int friendsCount;
+        private int statusesCount;
+        private String name;
+        private int followersCount;
+
+        public TwitterUser() {
+
+        }
+
+        public TwitterUser(String screenName, int friendsCount, int statusesCount, String name, int followersCount) {
+            this.screenName = screenName;
+            this.friendsCount = friendsCount;
+            this.statusesCount = statusesCount;
+            this.name = name;
+            this.followersCount = followersCount;
+        }
+
+        public void reset(String screenName, int friendsCount, int statusesCount, String name, int followersCount) {
+            this.screenName = screenName;
+            this.friendsCount = friendsCount;
+            this.statusesCount = statusesCount;
+            this.name = name;
+            this.followersCount = followersCount;
+        }
+
+        public String getScreenName() {
+            return screenName;
+        }
+
+        public int getFriendsCount() {
+            return friendsCount;
+        }
+
+        public int getStatusesCount() {
+            return statusesCount;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public int getFollowersCount() {
+            return followersCount;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("{");
+            builder.append("\"screen-name\":" + "\"" + screenName + "\"");
+            builder.append(",");
+            builder.append("\"lang\":" + "\"" + lang + "\"");
+            builder.append(",");
+            builder.append("\"friends_count\":" + friendsCount);
+            builder.append(",");
+            builder.append("\"statuses_count\":" + statusesCount);
+            builder.append(",");
+            builder.append("\"name\":" + "\"" + name + "\"");
+            builder.append(",");
+            builder.append("\"followers_count\":" + followersCount);
+            builder.append("}");
+            return builder.toString();
+        }
+
+    }
+
+    public static class DistributionHandler {
+
+        private final ZipfGenerator zipfGen;
+        private final int totalUsers;
+        private final int totalMessages;
+        private Random random = new Random();
+
+        public DistributionHandler(int totalMessages, double skew, int totalNumUsers) {
+            zipfGen = new ZipfGenerator(totalMessages, skew);
+            totalUsers = totalNumUsers;
+            this.totalMessages = totalMessages;
+        }
+
+        public int getFromDistribution(int rank) {
+            double prob = zipfGen.getProbability(rank);
+            int numMessages = (int) (prob * totalMessages);
+            return numMessages;
+        }
+
+        public static void main(String args[]) {
+            int totalMessages = 1000 * 4070;
+            double skew = 0.5;
+            int totalUsers = 4070;
+            DistributionHandler d = new DistributionHandler(totalMessages, skew, totalUsers);
+            int sum = 0;
+            for (int i = totalUsers; i >= 1; i--) {
+                float contrib = d.getFromDistribution(i);
+                sum += contrib;
+                System.out.println(i + ":" + contrib);
+            }
+
+            System.out.println("SUM" + ":" + sum);
+
+        }
+    }
+
+    public static class ZipfGenerator {
+
+        private Random rnd = new Random(System.currentTimeMillis());
+        private int size;
+        private double skew;
+        private double bottom = 0;
+
+        public ZipfGenerator(int size, double skew) {
+            this.size = size;
+            this.skew = skew;
+            for (int i = 1; i < size; i++) {
+                this.bottom += (1 / Math.pow(i, this.skew));
+            }
+        }
+
+        // the next() method returns an rank id. The frequency of returned rank
+        // ids are follows Zipf distribution.
+        public int next() {
+            int rank;
+            double friquency = 0;
+            double dice;
+            rank = rnd.nextInt(size);
+            friquency = (1.0d / Math.pow(rank, this.skew)) / this.bottom;
+            dice = rnd.nextDouble();
+            while (!(dice < friquency)) {
+                rank = rnd.nextInt(size);
+                friquency = (1.0d / Math.pow(rank, this.skew)) / this.bottom;
+                dice = rnd.nextDouble();
+            }
+            return rank;
+        }
+
+        // This method returns a probability that the given rank occurs.
+        public double getProbability(int rank) {
+            return (1.0d / Math.pow(rank, this.skew)) / this.bottom;
+        }
+
+        public static void main(String[] args) throws IOException {
+            int total = (int) (3.7 * 1000 * 1000);
+            int skew = 2;
+            int numUsers = 1000 * 1000;
+            /*
+             * if (args.length != 2) { System.out.println("usage:" +
+             * "./zipf size skew"); System.exit(-1); }
+             */
+            BufferedWriter buf = new BufferedWriter(new FileWriter(new File("/tmp/zip_output")));
+            ZipfGenerator zipf = new ZipfGenerator(total, skew);
+            double sum = 0;
+            for (int i = 1; i <= numUsers; i++) {
+                double prob = zipf.getProbability(i);
+                double contribution = (double) (prob * total);
+                String contrib = i + ":" + contribution;
+                buf.write(contrib);
+                buf.write("\n");
+                System.out.println(contrib);
+                sum += contribution;
+            }
+            System.out.println("sum is :" + sum);
+        }
+    }
+
+    public static class PartitionElement implements ILibraryElement {
+        private final String name;
+        private final String host;
+        private final int fbUserKeyMin;
+        private final int fbUserKeyMax;
+        private final int twUserKeyMin;
+        private final int twUserKeyMax;
+        private final int fbMessageIdMin;
+        private final int fbMessageIdMax;
+        private final int twMessageIdMin;
+        private final int twMessageIdMax;
+
+        public PartitionElement(String partitionName, String host, int fbUserKeyMin, int fbUserKeyMax,
+                int twUserKeyMin, int twUserKeyMax, int fbMessageIdMin, int fbMessageIdMax, int twMessageIdMin,
+                int twMessageIdMax) {
+            this.name = partitionName;
+            this.host = host;
+            this.fbUserKeyMin = fbUserKeyMin;
+            this.fbUserKeyMax = fbUserKeyMax;
+            this.twUserKeyMin = twUserKeyMax;
+            this.twUserKeyMax = twUserKeyMax;
+            this.twMessageIdMin = twMessageIdMin;
+            this.twMessageIdMax = twMessageIdMax;
+            this.fbMessageIdMin = fbMessageIdMin;
+            this.fbMessageIdMax = fbMessageIdMax;
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append(name);
+            builder.append(" ");
+            builder.append(host);
+            builder.append("\n");
+            builder.append("fbUser:key:min");
+            builder.append(fbUserKeyMin);
+
+            builder.append("\n");
+            builder.append("fbUser:key:max");
+            builder.append(fbUserKeyMax);
+
+            builder.append("\n");
+            builder.append("twUser:key:min");
+            builder.append(twUserKeyMin);
+
+            builder.append("\n");
+            builder.append("twUser:key:max");
+            builder.append(twUserKeyMax);
+
+            builder.append("\n");
+            builder.append("fbMessage:key:min");
+            builder.append(fbMessageIdMin);
+
+            builder.append("\n");
+            builder.append("fbMessage:key:max");
+            builder.append(fbMessageIdMax);
+
+            builder.append("\n");
+            builder.append("twMessage:key:min");
+            builder.append(twMessageIdMin);
+
+            builder.append("\n");
+            builder.append("twMessage:key:max");
+            builder.append(twMessageIdMax);
+
+            builder.append("\n");
+            builder.append("twMessage:key:max");
+            builder.append(twUserKeyMin);
+
+            return new String(builder);
+        }
+
+        @Override
+        public String getName() {
+            return "Partition";
+        }
+
+    }
+
+    interface ILibraryElement {
+
+        public enum ElementType {
+            PARTITION
+        }
+
+        public String getName();
+
+    }
+
+    public static class Configuration {
+
+        private final float numMB;
+        private final String unit;
+
+        private final List<SourcePartition> sourcePartitions;
+        private List<TargetPartition> targetPartitions;
+
+        public Configuration(float numMB, String unit, List<SourcePartition> partitions) throws IOException {
+            this.numMB = numMB;
+            this.unit = unit;
+            this.sourcePartitions = partitions;
+
+        }
+
+        public float getNumMB() {
+            return numMB;
+        }
+
+        public String getUnit() {
+            return unit;
+        }
+
+        public List<SourcePartition> getSourcePartitions() {
+            return sourcePartitions;
+        }
+
+        public List<TargetPartition> getTargetPartitions() {
+            return targetPartitions;
+        }
+
+        public void setTargetPartitions(List<TargetPartition> targetPartitions) {
+            this.targetPartitions = targetPartitions;
+        }
+
+    }
+
+    public static class XMLUtil {
+
+        public static void writeToXML(Configuration conf, String filePath) throws IOException,
+                ParserConfigurationException, TransformerException {
+
+            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
+
+            // root elements
+            Document doc = docBuilder.newDocument();
+            Element rootElement = doc.createElement("Partitions");
+            doc.appendChild(rootElement);
+
+            int index = 0;
+            for (TargetPartition partition : conf.getTargetPartitions()) {
+                writePartitionElement(conf.getSourcePartitions().get(index), partition, rootElement, doc);
+            }
+
+            TransformerFactory transformerFactory = TransformerFactory.newInstance();
+            Transformer transformer = transformerFactory.newTransformer();
+
+            transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
+            transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
+            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
+
+            DOMSource source = new DOMSource(doc);
+            StreamResult result = new StreamResult(new File(filePath));
+
+            transformer.transform(source, result);
+
+        }
+
+        public static void writePartitionInfo(Configuration conf, String filePath) throws IOException {
+            BufferedWriter bw = new BufferedWriter(new FileWriter(filePath));
+            for (SourcePartition sp : conf.getSourcePartitions()) {
+                bw.write(sp.getHost() + ":" + sp.getName() + ":" + sp.getPath());
+                bw.write("\n");
+            }
+            bw.close();
+        }
+
+        public static Document getDocument(String filePath) throws Exception {
+            File inputFile = new File(filePath);
+            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+            DocumentBuilder db = dbf.newDocumentBuilder();
+            Document doc = db.parse(inputFile);
+            doc.getDocumentElement().normalize();
+            return doc;
+        }
+
+        public static Configuration getConfiguration(String filePath) throws Exception {
+            Configuration conf = getConfiguration(getDocument(filePath));
+            PartitionMetrics metrics = new PartitionMetrics(conf.getNumMB(), conf.getUnit(), conf.getSourcePartitions()
+                    .size());
+            List<TargetPartition> targetPartitions = getTargetPartitions(metrics, conf.getSourcePartitions());
+            conf.setTargetPartitions(targetPartitions);
+            return conf;
+        }
+
+        public static Configuration getConfiguration(Document document) throws IOException {
+            Element rootEle = document.getDocumentElement();
+            NodeList nodeList = rootEle.getChildNodes();
+            float size = Float.parseFloat(getStringValue((Element) nodeList, "size"));
+            String unit = getStringValue((Element) nodeList, "unit");
+            List<SourcePartition> sourcePartitions = getSourcePartitions(document);
+            return new Configuration(size, unit, sourcePartitions);
+        }
+
+        public static List<SourcePartition> getSourcePartitions(Document document) {
+            Element rootEle = document.getDocumentElement();
+            NodeList nodeList = rootEle.getElementsByTagName("partition");
+            List<SourcePartition> sourcePartitions = new ArrayList<SourcePartition>();
+            for (int i = 0; i < nodeList.getLength(); i++) {
+                Node node = nodeList.item(i);
+                sourcePartitions.add(getSourcePartition((Element) node));
+            }
+            return sourcePartitions;
+        }
+
+        public static SourcePartition getSourcePartition(Element functionElement) {
+            String name = getStringValue(functionElement, "name");
+            String host = getStringValue(functionElement, "host");
+            String path = getStringValue(functionElement, "path");
+            SourcePartition sp = new SourcePartition(name, host, path);
+            return sp;
+        }
+
+        public static String getStringValue(Element element, String tagName) {
+            String textValue = null;
+            NodeList nl = element.getElementsByTagName(tagName);
+            if (nl != null && nl.getLength() > 0) {
+                Element el = (Element) nl.item(0);
+                textValue = el.getFirstChild().getNodeValue();
+            }
+            return textValue;
+        }
+
+        public static PartitionConfiguration getPartitionConfiguration(String filePath, String partitionName)
+                throws Exception {
+            PartitionConfiguration pconf = getPartitionConfigurations(getDocument(filePath), partitionName);
+            return pconf;
+        }
+
+        public static PartitionConfiguration getPartitionConfigurations(Document document, String partitionName)
+                throws IOException {
+
+            Element rootEle = document.getDocumentElement();
+            NodeList nodeList = rootEle.getElementsByTagName("Partition");
+
+            for (int i = 0; i < nodeList.getLength(); i++) {
+                Node node = nodeList.item(i);
+                Element nodeElement = (Element) node;
+                String name = getStringValue(nodeElement, "name");
+                if (!name.equalsIgnoreCase(partitionName)) {
+                    continue;
+                }
+                String host = getStringValue(nodeElement, "host");
+                String path = getStringValue(nodeElement, "path");
+
+                String fbUserKeyMin = getStringValue(nodeElement, "fbUserKeyMin");
+                String fbUserKeyMax = getStringValue(nodeElement, "fbUserKeyMax");
+                String twUserKeyMin = getStringValue(nodeElement, "twUserKeyMin");
+                String twUserKeyMax = getStringValue(nodeElement, "twUserKeyMax");
+                String fbMessageKeyMin = getStringValue(nodeElement, "fbMessageKeyMin");
+
+                String fbMessageKeyMax = getStringValue(nodeElement, "fbMessageKeyMax");
+                String twMessageKeyMin = getStringValue(nodeElement, "twMessageKeyMin");
+                String twMessageKeyMax = getStringValue(nodeElement, "twMessageKeyMax");
+                String numCommonUsers = getStringValue(nodeElement, "numCommonUsers");
+
+                SourcePartition sp = new SourcePartition(name, host, path);
+
+                TargetPartition tp = new TargetPartition(partitionName, host, path, Integer.parseInt(fbUserKeyMin),
+                        Integer.parseInt(fbUserKeyMax), Integer.parseInt(twUserKeyMin), Integer.parseInt(twUserKeyMax),
+                        Integer.parseInt(fbMessageKeyMin), Integer.parseInt(fbMessageKeyMax),
+                        Integer.parseInt(twMessageKeyMin), Integer.parseInt(twMessageKeyMax),
+                        Integer.parseInt(numCommonUsers));
+                PartitionConfiguration pc = new PartitionConfiguration(sp, tp);
+                return pc;
+            }
+            return null;
+        }
+
+        public static List<TargetPartition> getTargetPartitions(PartitionMetrics metrics,
+                List<SourcePartition> sourcePartitions) {
+            List<TargetPartition> partitions = new ArrayList<TargetPartition>();
+            int fbUserKeyMin = 1;
+            int twUserKeyMin = 1;
+            int fbMessageIdMin = 1;
+            int twMessageIdMin = 1;
+
+            for (SourcePartition sp : sourcePartitions) {
+                int fbUserKeyMax = fbUserKeyMin + metrics.getFbOnlyUsers() + metrics.getCommonUsers() - 1;
+                int twUserKeyMax = twUserKeyMin + metrics.getTwitterOnlyUsers() + metrics.getCommonUsers() - 1;
+
+                int fbMessageIdMax = fbMessageIdMin + metrics.getFbMessages() - 1;
+                int twMessageIdMax = twMessageIdMin + metrics.getTwMessages() - 1;
+                TargetPartition pe = new TargetPartition(sp.getName(), sp.getHost(), sp.getPath(), fbUserKeyMin,
+                        fbUserKeyMax, twUserKeyMin, twUserKeyMax, fbMessageIdMin, fbMessageIdMax, twMessageIdMin,
+                        twMessageIdMax, metrics.getCommonUsers());
+                partitions.add(pe);
+
+                fbUserKeyMin = fbUserKeyMax + 1;
+                twUserKeyMin = twUserKeyMax + 1;
+
+                fbMessageIdMin = fbMessageIdMax + 1;
+                twMessageIdMin = twMessageIdMax + 1;
+            }
+
+            return partitions;
+        }
+
+        public static void writePartitionElement(SourcePartition sourcePartition, TargetPartition partition,
+                Element rootElement, Document doc) {
+            // staff elements
+            Element pe = doc.createElement("Partition");
+            rootElement.appendChild(pe);
+
+            // name element
+            Element name = doc.createElement("name");
+            name.appendChild(doc.createTextNode("" + partition.getName()));
+            pe.appendChild(name);
+
+            // host element
+            Element host = doc.createElement("host");
+            host.appendChild(doc.createTextNode("" + partition.getHost()));
+            pe.appendChild(host);
+
+            // path element
+            Element path = doc.createElement("path");
+            path.appendChild(doc.createTextNode("" + partition.getPath()));
+            pe.appendChild(path);
+
+            // fbUserKeyMin element
+            Element fbUserKeyMin = doc.createElement("fbUserKeyMin");
+            fbUserKeyMin.appendChild(doc.createTextNode("" + partition.getFbUserKeyMin()));
+            pe.appendChild(fbUserKeyMin);
+
+            // fbUserKeyMax element
+            Element fbUserKeyMax = doc.createElement("fbUserKeyMax");
+            fbUserKeyMax.appendChild(doc.createTextNode("" + partition.getFbUserKeyMax()));
+            pe.appendChild(fbUserKeyMax);
+
+            // twUserKeyMin element
+            Element twUserKeyMin = doc.createElement("twUserKeyMin");
+            twUserKeyMin.appendChild(doc.createTextNode("" + partition.getTwUserKeyMin()));
+            pe.appendChild(twUserKeyMin);
+
+            // twUserKeyMax element
+            Element twUserKeyMax = doc.createElement("twUserKeyMax");
+            twUserKeyMax.appendChild(doc.createTextNode("" + partition.getTwUserKeyMax()));
+            pe.appendChild(twUserKeyMax);
+
+            // fbMessgeKeyMin element
+            Element fbMessageKeyMin = doc.createElement("fbMessageKeyMin");
+            fbMessageKeyMin.appendChild(doc.createTextNode("" + partition.getFbMessageIdMin()));
+            pe.appendChild(fbMessageKeyMin);
+
+            // fbMessgeKeyMin element
+            Element fbMessageKeyMax = doc.createElement("fbMessageKeyMax");
+            fbMessageKeyMax.appendChild(doc.createTextNode("" + partition.getFbMessageIdMax()));
+            pe.appendChild(fbMessageKeyMax);
+
+            // twMessgeKeyMin element
+            Element twMessageKeyMin = doc.createElement("twMessageKeyMin");
+            twMessageKeyMin.appendChild(doc.createTextNode("" + partition.getTwMessageIdMin()));
+            pe.appendChild(twMessageKeyMin);
+
+            // twMessgeKeyMin element
+            Element twMessageKeyMax = doc.createElement("twMessageKeyMax");
+            twMessageKeyMax.appendChild(doc.createTextNode("" + partition.getTwMessageIdMax()));
+            pe.appendChild(twMessageKeyMax);
+
+            // twMessgeKeyMin element
+            Element numCommonUsers = doc.createElement("numCommonUsers");
+            numCommonUsers.appendChild(doc.createTextNode("" + partition.getCommonUsers()));
+            pe.appendChild(numCommonUsers);
+
+        }
+
+        public static void main(String args[]) throws Exception {
+            String confFile = "/Users/rgrove1/work/research/asterix/icde/data-gen/conf/conf.xml";
+            String outputPath = "/Users/rgrove1/work/research/asterix/icde/data-gen/output/conf-output.xml";
+            Configuration conf = getConfiguration(confFile);
+            writeToXML(conf, outputPath);
+        }
+
+    }
+
+    public static class Date {
+
+        private int day;
+        private int month;
+        private int year;
+
+        public Date(int month, int day, int year) {
+            this.month = month;
+            this.day = day;
+            this.year = year;
+        }
+
+        public void reset(int month, int day, int year) {
+            this.month = month;
+            this.day = day;
+            this.year = year;
+        }
+
+        public int getDay() {
+            return day;
+        }
+
+        public int getMonth() {
+            return month;
+        }
+
+        public int getYear() {
+            return year;
+        }
+
+        public Date() {
+        }
+
+        public String toString() {
+            StringBuilder builder = new StringBuilder();
+            builder.append("date");
+            builder.append("(\"");
+            builder.append(year);
+            builder.append("-");
+            builder.append(month < 10 ? "0" + month : "" + month);
+            builder.append("-");
+            builder.append(day < 10 ? "0" + day : "" + day);
+            builder.append("\")");
+            return builder.toString();
+        }
+
+        public void setDay(int day) {
+            this.day = day;
+        }
+
+        public void setMonth(int month) {
+            this.month = month;
+        }
+
+        public void setYear(int year) {
+            this.year = year;
+        }
+    }
+
+    public static class PartitionMetrics {
+
+        private final int fbMessages;
+        private final int twMessages;
+
+        private final int fbOnlyUsers;
+        private final int twitterOnlyUsers;
+        private final int commonUsers;
+
+        public PartitionMetrics(float number, String unit, int numPartitions) throws IOException {
+
+            int factor = 0;
+            if (unit.equalsIgnoreCase("MB")) {
+                factor = 1024 * 1024;
+            } else if (unit.equalsIgnoreCase("GB")) {
+                factor = 1024 * 1024 * 1024;
+            } else if (unit.equalsIgnoreCase("TB")) {
+                factor = 1024 * 1024 * 1024 * 1024;
+            } else
+                throw new IOException("Invalid unit:" + unit);
+
+            fbMessages = (int) (((number * factor * 0.80) / 258) / numPartitions);
+            twMessages = (int) (fbMessages * 1.1 / 0.35);
+
+            fbOnlyUsers = (int) ((number * factor * 0.20 * 0.0043)) / numPartitions;
+            twitterOnlyUsers = (int) (0.25 * fbOnlyUsers);
+            commonUsers = (int) (0.1 * fbOnlyUsers);
+        }
+
+        public int getFbMessages() {
+            return fbMessages;
+        }
+
+        public int getTwMessages() {
+            return twMessages;
+        }
+
+        public int getFbOnlyUsers() {
+            return fbOnlyUsers;
+        }
+
+        public int getTwitterOnlyUsers() {
+            return twitterOnlyUsers;
+        }
+
+        public int getCommonUsers() {
+            return commonUsers;
+        }
+
+    }
+
+    public static String[] lastNames = { "Hoopengarner", "Harrow", "Gardner", "Blyant", "Best", "Buttermore", "Gronko",
+            "Mayers", "Countryman", "Neely", "Ruhl", "Taggart", "Bash", "Cason", "Hil", "Zalack", "Mingle", "Carr",
+            "Rohtin", "Wardle", "Pullman", "Wire", "Kellogg", "Hiles", "Keppel", "Bratton", "Sutton", "Wickes",
+            "Muller", "Friedline", "Llora", "Elizabeth", "Anderson", "Gaskins", "Rifler", "Vinsant", "Stanfield",
+            "Black", "Guest", "Hujsak", "Carter", "Weidemann", "Hays", "Patton", "Hayhurst", "Paynter", "Cressman",
+            "Fiddler", "Evans", "Sherlock", "Woodworth", "Jackson", "Bloise", "Schneider", "Ring", "Kepplinger",
+            "James", "Moon", "Bennett", "Bashline", "Ryals", "Zeal", "Christman", "Milliron", "Nash", "Ewing", "Camp",
+            "Mason", "Richardson", "Bowchiew", "Hahn", "Wilson", "Wood", "Toyley", "Williamson", "Lafortune", "Errett",
+            "Saltser", "Hirleman", "Brindle", "Newbiggin", "Ulery", "Lambert", "Shick", "Kuster", "Moore", "Finck",
+            "Powell", "Jolce", "Townsend", "Sauter", "Cowher", "Wolfe", "Cavalet", "Porter", "Laborde", "Ballou",
+            "Murray", "Stoddard", "Pycroft", "Milne", "King", "Todd", "Staymates", "Hall", "Romanoff", "Keilbach",
+            "Sandford", "Hamilton", "Fye", "Kline", "Weeks", "Mcelroy", "Mccullough", "Bryant", "Hill", "Moore",
+            "Ledgerwood", "Prevatt", "Eckert", "Read", "Hastings", "Doverspike", "Allshouse", "Bryan", "Mccallum",
+            "Lombardi", "Mckendrick", "Cattley", "Barkley", "Steiner", "Finlay", "Priebe", "Armitage", "Hall", "Elder",
+            "Erskine", "Hatcher", "Walker", "Pearsall", "Dunkle", "Haile", "Adams", "Miller", "Newbern", "Basinger",
+            "Fuhrer", "Brinigh", "Mench", "Blackburn", "Bastion", "Mccune", "Bridger", "Hynes", "Quinn", "Courtney",
+            "Geddinge", "Field", "Seelig", "Cable", "Earhart", "Harshman", "Roby", "Beals", "Berry", "Reed", "Hector",
+            "Pittman", "Haverrman", "Kalp", "Briner", "Joghs", "Cowart", "Close", "Wynne", "Harden", "Weldy",
+            "Stephenson", "Hildyard", "Moberly", "Wells", "Mackendoerfer", "Fisher", "Oppie", "Oneal", "Churchill",
+            "Keister", "Alice", "Tavoularis", "Fisher", "Hair", "Burns", "Veith", "Wile", "Fuller", "Fields", "Clark",
+            "Randolph", "Stone", "Mcclymonds", "Holtzer", "Donkin", "Wilkinson", "Rosensteel", "Albright", "Stahl",
+            "Fox", "Kadel", "Houser", "Hanseu", "Henderson", "Davis", "Bicknell", "Swain", "Mercer", "Holdeman",
+            "Enderly", "Caesar", "Margaret", "Munshower", "Elless", "Lucy", "Feufer", "Schofield", "Graham",
+            "Blatenberger", "Benford", "Akers", "Campbell", "Ann", "Sadley", "Ling", "Gongaware", "Schmidt", "Endsley",
+            "Groah", "Flanders", "Reichard", "Lowstetter", "Sandblom", "Griffis", "Basmanoff", "Coveney", "Hawker",
+            "Archibald", "Hutton", "Barnes", "Diegel", "Raybould", "Focell", "Breitenstein", "Murray", "Chauvin",
+            "Busk", "Pheleps", "Teagarden", "Northey", "Baumgartner", "Fleming", "Harris", "Parkinson", "Carpenter",
+            "Whirlow", "Bonner", "Wortman", "Rogers", "Scott", "Lowe", "Mckee", "Huston", "Bullard", "Throckmorton",
+            "Rummel", "Mathews", "Dull", "Saline", "Tue", "Woolery", "Lalty", "Schrader", "Ramsey", "Eisenmann",
+            "Philbrick", "Sybilla", "Wallace", "Fonblanque", "Paul", "Orbell", "Higgens", "Casteel", "Franks",
+            "Demuth", "Eisenman", "Hay", "Robinson", "Fischer", "Hincken", "Wylie", "Leichter", "Bousum",
+            "Littlefield", "Mcdonald", "Greif", "Rhodes", "Wall", "Steele", "Baldwin", "Smith", "Stewart", "Schere",
+            "Mary", "Aultman", "Emrick", "Guess", "Mitchell", "Painter", "Aft", "Hasely", "Weldi", "Loewentsein",
+            "Poorbaugh", "Kepple", "Noton", "Judge", "Jackson", "Style", "Adcock", "Diller", "Marriman", "Johnston",
+            "Children", "Monahan", "Ehret", "Shaw", "Congdon", "Pinney", "Millard", "Crissman", "Tanner", "Rose",
+            "Knisely", "Cypret", "Sommer", "Poehl", "Hardie", "Bender", "Overholt", "Gottwine", "Beach", "Leslie",
+            "Trevithick", "Langston", "Magor", "Shotts", "Howe", "Hunter", "Cross", "Kistler", "Dealtry", "Christner",
+            "Pennington", "Thorley", "Eckhardstein", "Van", "Stroh", "Stough", "Stall", "Beedell", "Shea", "Garland",
+            "Mays", "Pritchard", "Frankenberger", "Rowley", "Lane", "Baum", "Alliman", "Park", "Jardine", "Butler",
+            "Cherry", "Kooser", "Baxter", "Billimek", "Downing", "Hurst", "Wood", "Baird", "Watkins", "Edwards",
+            "Kemerer", "Harding", "Owens", "Eiford", "Keener", "Garneis", "Fiscina", "Mang", "Draudy", "Mills",
+            "Gibson", "Reese", "Todd", "Ramos", "Levett", "Wilks", "Ward", "Mosser", "Dunlap", "Kifer", "Christopher",
+            "Ashbaugh", "Wynter", "Rawls", "Cribbs", "Haynes", "Thigpen", "Schreckengost", "Bishop", "Linton",
+            "Chapman", "James", "Jerome", "Hook", "Omara", "Houston", "Maclagan", "Sandys", "Pickering", "Blois",
+            "Dickson", "Kemble", "Duncan", "Woodward", "Southern", "Henley", "Treeby", "Cram", "Elsas", "Driggers",
+            "Warrick", "Overstreet", "Hindman", "Buck", "Sulyard", "Wentzel", "Swink", "Butt", "Schaeffer",
+            "Hoffhants", "Bould", "Willcox", "Lotherington", "Bagley", "Graff", "White", "Wheeler", "Sloan",
+            "Rodacker", "Hanford", "Jowers", "Kunkle", "Cass", "Powers", "Gilman", "Mcmichaels", "Hobbs", "Herndon",
+            "Prescott", "Smail", "Mcdonald", "Biery", "Orner", "Richards", "Mueller", "Isaman", "Bruxner", "Goodman",
+            "Barth", "Turzanski", "Vorrasi", "Stainforth", "Nehling", "Rahl", "Erschoff", "Greene", "Mckinnon",
+            "Reade", "Smith", "Pery", "Roose", "Greenwood", "Weisgarber", "Curry", "Holts", "Zadovsky", "Parrish",
+            "Putnam", "Munson", "Mcindoe", "Nickolson", "Brooks", "Bollinger", "Stroble", "Siegrist", "Fulton",
+            "Tomey", "Zoucks", "Roberts", "Otis", "Clarke", "Easter", "Johnson", "Fylbrigg", "Taylor", "Swartzbaugh",
+            "Weinstein", "Gadow", "Sayre", "Marcotte", "Wise", "Atweeke", "Mcfall", "Napier", "Eisenhart", "Canham",
+            "Sealis", "Baughman", "Gertraht", "Losey", "Laurence", "Eva", "Pershing", "Kern", "Pirl", "Rega",
+            "Sanborn", "Kanaga", "Sanders", "Anderson", "Dickinson", "Osteen", "Gettemy", "Crom", "Snyder", "Reed",
+            "Laurenzi", "Riggle", "Tillson", "Fowler", "Raub", "Jenner", "Koepple", "Soames", "Goldvogel", "Dimsdale",
+            "Zimmer", "Giesen", "Baker", "Beail", "Mortland", "Bard", "Sanner", "Knopsnider", "Jenkins", "Bailey",
+            "Werner", "Barrett", "Faust", "Agg", "Tomlinson", "Williams", "Little", "Greenawalt", "Wells", "Wilkins",
+            "Gisiko", "Bauerle", "Harrold", "Prechtl", "Polson", "Faast", "Winton", "Garneys", "Peters", "Potter",
+            "Porter", "Tennant", "Eve", "Dugger", "Jones", "Burch", "Cowper", "Whittier" };
+
+    public static String[] firstNames = { "Albert", "Jacquelin", "Dona", "Alia", "Mayme", "Genoveva", "Emma", "Lena",
+            "Melody", "Vilma", "Katelyn", "Jeremy", "Coral", "Leann", "Lita", "Gilda", "Kayla", "Alvina", "Maranda",
+            "Verlie", "Khadijah", "Karey", "Patrice", "Kallie", "Corey", "Mollie", "Daisy", "Melanie", "Sarita",
+            "Nichole", "Pricilla", "Terresa", "Berneice", "Arianne", "Brianne", "Lavinia", "Ulrike", "Lesha", "Adell",
+            "Ardelle", "Marisha", "Laquita", "Karyl", "Maryjane", "Kendall", "Isobel", "Raeann", "Heike", "Barbera",
+            "Norman", "Yasmine", "Nevada", "Mariam", "Edith", "Eugena", "Lovie", "Maren", "Bennie", "Lennie", "Tamera",
+            "Crystal", "Randi", "Anamaria", "Chantal", "Jesenia", "Avis", "Shela", "Randy", "Laurena", "Sharron",
+            "Christiane", "Lorie", "Mario", "Elizabeth", "Reina", "Adria", "Lakisha", "Brittni", "Azzie", "Dori",
+            "Shaneka", "Asuncion", "Katheryn", "Laurice", "Sharita", "Krystal", "Reva", "Inger", "Alpha", "Makeda",
+            "Anabel", "Loni", "Tiara", "Meda", "Latashia", "Leola", "Chin", "Daisey", "Ivory", "Amalia", "Logan",
+            "Tyler", "Kyong", "Carolann", "Maryetta", "Eufemia", "Anya", "Doreatha", "Lorna", "Rutha", "Ehtel",
+            "Debbie", "Chassidy", "Sang", "Christa", "Lottie", "Chun", "Karine", "Peggie", "Amina", "Melany", "Alayna",
+            "Scott", "Romana", "Naomi", "Christiana", "Salena", "Taunya", "Mitsue", "Regina", "Chelsie", "Charity",
+            "Dacia", "Aletha", "Latosha", "Lia", "Tamica", "Chery", "Bianca", "Shu", "Georgianne", "Myriam", "Austin",
+            "Wan", "Mallory", "Jana", "Georgie", "Jenell", "Kori", "Vicki", "Delfina", "June", "Mellisa", "Catherina",
+            "Claudie", "Tynisha", "Dayle", "Enriqueta", "Belen", "Pia", "Sarai", "Rosy", "Renay", "Kacie", "Frieda",
+            "Cayla", "Elissa", "Claribel", "Sabina", "Mackenzie", "Raina", "Cira", "Mitzie", "Aubrey", "Serafina",
+            "Maria", "Katharine", "Esperanza", "Sung", "Daria", "Billye", "Stefanie", "Kasha", "Holly", "Suzanne",
+            "Inga", "Flora", "Andria", "Genevie", "Eladia", "Janet", "Erline", "Renna", "Georgeanna", "Delorse",
+            "Elnora", "Rudy", "Rima", "Leanora", "Letisha", "Love", "Alverta", "Pinkie", "Domonique", "Jeannie",
+            "Jose", "Jacqueline", "Tara", "Lily", "Erna", "Tennille", "Galina", "Tamala", "Kirby", "Nichelle",
+            "Myesha", "Farah", "Santa", "Ludie", "Kenia", "Yee", "Micheline", "Maryann", "Elaina", "Ethelyn",
+            "Emmaline", "Shanell", "Marina", "Nila", "Alane", "Shakira", "Dorris", "Belinda", "Elois", "Barbie",
+            "Carita", "Gisela", "Lura", "Fransisca", "Helga", "Peg", "Leonarda", "Earlie", "Deetta", "Jacquetta",
+            "Blossom", "Kayleigh", "Deloras", "Keshia", "Christinia", "Dulce", "Bernie", "Sheba", "Lashanda", "Tula",
+            "Claretta", "Kary", "Jeanette", "Lupita", "Lenora", "Hisako", "Sherise", "Glynda", "Adela", "Chia",
+            "Sudie", "Mindy", "Caroyln", "Lindsey", "Xiomara", "Mercedes", "Onie", "Loan", "Alexis", "Tommie",
+            "Donette", "Monica", "Soo", "Camellia", "Lavera", "Valery", "Ariana", "Sophia", "Loris", "Ginette",
+            "Marielle", "Tari", "Julissa", "Alesia", "Suzanna", "Emelda", "Erin", "Ladawn", "Sherilyn", "Candice",
+            "Nereida", "Fairy", "Carl", "Joel", "Marilee", "Gracia", "Cordie", "So", "Shanita", "Drew", "Cassie",
+            "Sherie", "Marget", "Norma", "Delois", "Debera", "Chanelle", "Catarina", "Aracely", "Carlene", "Tricia",
+            "Aleen", "Katharina", "Marguerita", "Guadalupe", "Margorie", "Mandie", "Kathe", "Chong", "Sage", "Faith",
+            "Maryrose", "Stephany", "Ivy", "Pauline", "Susie", "Cristen", "Jenifer", "Annette", "Debi", "Karmen",
+            "Luci", "Shayla", "Hope", "Ocie", "Sharie", "Tami", "Breana", "Kerry", "Rubye", "Lashay", "Sondra",
+            "Katrice", "Brunilda", "Cortney", "Yan", "Zenobia", "Penni", "Addie", "Lavona", "Noel", "Anika",
+            "Herlinda", "Valencia", "Bunny", "Tory", "Victoria", "Carrie", "Mikaela", "Wilhelmina", "Chung",
+            "Hortencia", "Gerda", "Wen", "Ilana", "Sibyl", "Candida", "Victorina", "Chantell", "Casie", "Emeline",
+            "Dominica", "Cecila", "Delora", "Miesha", "Nova", "Sally", "Ronald", "Charlette", "Francisca", "Mina",
+            "Jenna", "Loraine", "Felisa", "Lulu", "Page", "Lyda", "Babara", "Flor", "Walter", "Chan", "Sherika",
+            "Kala", "Luna", "Vada", "Syreeta", "Slyvia", "Karin", "Renata", "Robbi", "Glenda", "Delsie", "Lizzie",
+            "Genia", "Caitlin", "Bebe", "Cory", "Sam", "Leslee", "Elva", "Caren", "Kasie", "Leticia", "Shannan",
+            "Vickey", "Sandie", "Kyle", "Chang", "Terrilyn", "Sandra", "Elida", "Marketta", "Elsy", "Tu", "Carman",
+            "Ashlie", "Vernia", "Albertine", "Vivian", "Elba", "Bong", "Margy", "Janetta", "Xiao", "Teofila", "Danyel",
+            "Nickole", "Aleisha", "Tera", "Cleotilde", "Dara", "Paulita", "Isela", "Maricela", "Rozella", "Marivel",
+            "Aurora", "Melissa", "Carylon", "Delinda", "Marvella", "Candelaria", "Deidre", "Tawanna", "Myrtie",
+            "Milagro", "Emilie", "Coretta", "Ivette", "Suzann", "Ammie", "Lucina", "Lory", "Tena", "Eleanor",
+            "Cherlyn", "Tiana", "Brianna", "Myra", "Flo", "Carisa", "Kandi", "Erlinda", "Jacqulyn", "Fermina", "Riva",
+            "Palmira", "Lindsay", "Annmarie", "Tamiko", "Carline", "Amelia", "Quiana", "Lashawna", "Veola", "Belva",
+            "Marsha", "Verlene", "Alex", "Leisha", "Camila", "Mirtha", "Melva", "Lina", "Arla", "Cythia", "Towanda",
+            "Aracelis", "Tasia", "Aurore", "Trinity", "Bernadine", "Farrah", "Deneen", "Ines", "Betty", "Lorretta",
+            "Dorethea", "Hertha", "Rochelle", "Juli", "Shenika", "Yung", "Lavon", "Deeanna", "Nakia", "Lynnette",
+            "Dinorah", "Nery", "Elene", "Carolee", "Mira", "Franchesca", "Lavonda", "Leida", "Paulette", "Dorine",
+            "Allegra", "Keva", "Jeffrey", "Bernardina", "Maryln", "Yoko", "Faviola", "Jayne", "Lucilla", "Charita",
+            "Ewa", "Ella", "Maggie", "Ivey", "Bettie", "Jerri", "Marni", "Bibi", "Sabrina", "Sarah", "Marleen",
+            "Katherin", "Remona", "Jamika", "Antonina", "Oliva", "Lajuana", "Fonda", "Sigrid", "Yael", "Billi",
+            "Verona", "Arminda", "Mirna", "Tesha", "Katheleen", "Bonita", "Kamilah", "Patrica", "Julio", "Shaina",
+            "Mellie", "Denyse", "Deandrea", "Alena", "Meg", "Kizzie", "Krissy", "Karly", "Alleen", "Yahaira", "Lucie",
+            "Karena", "Elaine", "Eloise", "Buena", "Marianela", "Renee", "Nan", "Carolynn", "Windy", "Avril", "Jane",
+            "Vida", "Thea", "Marvel", "Rosaline", "Tifany", "Robena", "Azucena", "Carlota", "Mindi", "Andera", "Jenny",
+            "Courtney", "Lyndsey", "Willette", "Kristie", "Shaniqua", "Tabatha", "Ngoc", "Una", "Marlena", "Louetta",
+            "Vernie", "Brandy", "Jacquelyne", "Jenelle", "Elna", "Erminia", "Ida", "Audie", "Louis", "Marisol",
+            "Shawana", "Harriette", "Karol", "Kitty", "Esmeralda", "Vivienne", "Eloisa", "Iris", "Jeanice", "Cammie",
+            "Jacinda", "Shena", "Floy", "Theda", "Lourdes", "Jayna", "Marg", "Kati", "Tanna", "Rosalyn", "Maxima",
+            "Soon", "Angelika", "Shonna", "Merle", "Kassandra", "Deedee", "Heidi", "Marti", "Renae", "Arleen",
+            "Alfredia", "Jewell", "Carley", "Pennie", "Corina", "Tonisha", "Natividad", "Lilliana", "Darcie", "Shawna",
+            "Angel", "Piedad", "Josefa", "Rebbeca", "Natacha", "Nenita", "Petrina", "Carmon", "Chasidy", "Temika",
+            "Dennise", "Renetta", "Augusta", "Shirlee", "Valeri", "Casimira", "Janay", "Berniece", "Deborah", "Yaeko",
+            "Mimi", "Digna", "Irish", "Cher", "Yong", "Lucila", "Jimmie", "Junko", "Lezlie", "Waneta", "Sandee",
+            "Marquita", "Eura", "Freeda", "Annabell", "Laree", "Jaye", "Wendy", "Toshia", "Kylee", "Aleta", "Emiko",
+            "Clorinda", "Sixta", "Audrea", "Juanita", "Birdie", "Reita", "Latanya", "Nia", "Leora", "Laurine",
+            "Krysten", "Jerrie", "Chantel", "Ira", "Sena", "Andre", "Jann", "Marla", "Precious", "Katy", "Gabrielle",
+            "Yvette", "Brook", "Shirlene", "Eldora", "Laura", "Milda", "Euna", "Jettie", "Debora", "Lise", "Edythe",
+            "Leandra", "Shandi", "Araceli", "Johanne", "Nieves", "Denese", "Carmelita", "Nohemi", "Annice", "Natalie",
+            "Yolande", "Jeffie", "Vashti", "Vickie", "Obdulia", "Youlanda", "Lupe", "Tomoko", "Monserrate", "Domitila",
+            "Etsuko", "Adrienne", "Lakesha", "Melissia", "Odessa", "Meagan", "Veronika", "Jolyn", "Isabelle", "Leah",
+            "Rhiannon", "Gianna", "Audra", "Sommer", "Renate", "Perla", "Thao", "Myong", "Lavette", "Mark", "Emilia",
+            "Ariane", "Karl", "Dorie", "Jacquie", "Mia", "Malka", "Shenita", "Tashina", "Christine", "Cherri", "Roni",
+            "Fran", "Mildred", "Sara", "Clarissa", "Fredia", "Elease", "Samuel", "Earlene", "Vernita", "Mae", "Concha",
+            "Renea", "Tamekia", "Hye", "Ingeborg", "Tessa", "Kelly", "Kristin", "Tam", "Sacha", "Kanisha", "Jillian",
+            "Tiffanie", "Ashlee", "Madelyn", "Donya", "Clementine", "Mickie", "My", "Zena", "Terrie", "Samatha",
+            "Gertie", "Tarra", "Natalia", "Sharlene", "Evie", "Shalon", "Rosalee", "Numbers", "Jodi", "Hattie",
+            "Naoma", "Valene", "Whitley", "Claude", "Alline", "Jeanne", "Camie", "Maragret", "Viola", "Kris", "Marlo",
+            "Arcelia", "Shari", "Jalisa", "Corrie", "Eleonor", "Angelyn", "Merry", "Lauren", "Melita", "Gita",
+            "Elenor", "Aurelia", "Janae", "Lyndia", "Margeret", "Shawanda", "Rolande", "Shirl", "Madeleine", "Celinda",
+            "Jaleesa", "Shemika", "Joye", "Tisa", "Trudie", "Kathrine", "Clarita", "Dinah", "Georgia", "Antoinette",
+            "Janis", "Suzette", "Sherri", "Herta", "Arie", "Hedy", "Cassi", "Audrie", "Caryl", "Jazmine", "Jessica",
+            "Beverly", "Elizbeth", "Marylee", "Londa", "Fredericka", "Argelia", "Nana", "Donnette", "Damaris",
+            "Hailey", "Jamee", "Kathlene", "Glayds", "Lydia", "Apryl", "Verla", "Adam", "Concepcion", "Zelda",
+            "Shonta", "Vernice", "Detra", "Meghann", "Sherley", "Sheri", "Kiyoko", "Margarita", "Adaline", "Mariela",
+            "Velda", "Ailene", "Juliane", "Aiko", "Edyth", "Cecelia", "Shavon", "Florance", "Madeline", "Rheba",
+            "Deann", "Ignacia", "Odelia", "Heide", "Mica", "Jennette", "Maricruz", "Ouida", "Darcy", "Laure",
+            "Justina", "Amada", "Laine", "Cruz", "Sunny", "Francene", "Roxanna", "Nam", "Nancie", "Deanna", "Letty",
+            "Britni", "Kazuko", "Lacresha", "Simon", "Caleb", "Milton", "Colton", "Travis", "Miles", "Jonathan",
+            "Logan", "Rolf", "Emilio", "Roberto", "Marcus", "Tim", "Delmar", "Devon", "Kurt", "Edward", "Jeffrey",
+            "Elvis", "Alfonso", "Blair", "Wm", "Sheldon", "Leonel", "Michal", "Federico", "Jacques", "Leslie",
+            "Augustine", "Hugh", "Brant", "Hong", "Sal", "Modesto", "Curtis", "Jefferey", "Adam", "John", "Glenn",
+            "Vance", "Alejandro", "Refugio", "Lucio", "Demarcus", "Chang", "Huey", "Neville", "Preston", "Bert",
+            "Abram", "Foster", "Jamison", "Kirby", "Erich", "Manual", "Dustin", "Derrick", "Donnie", "Jospeh", "Chris",
+            "Josue", "Stevie", "Russ", "Stanley", "Nicolas", "Samuel", "Waldo", "Jake", "Max", "Ernest", "Reinaldo",
+            "Rene", "Gale", "Morris", "Nathan", "Maximo", "Courtney", "Theodore", "Octavio", "Otha", "Delmer",
+            "Graham", "Dean", "Lowell", "Myles", "Colby", "Boyd", "Adolph", "Jarrod", "Nick", "Mark", "Clinton", "Kim",
+            "Sonny", "Dalton", "Tyler", "Jody", "Orville", "Luther", "Rubin", "Hollis", "Rashad", "Barton", "Vicente",
+            "Ted", "Rick", "Carmine", "Clifton", "Gayle", "Christopher", "Jessie", "Bradley", "Clay", "Theo", "Josh",
+            "Mitchell", "Boyce", "Chung", "Eugenio", "August", "Norbert", "Sammie", "Jerry", "Adan", "Edmundo",
+            "Homer", "Hilton", "Tod", "Kirk", "Emmett", "Milan", "Quincy", "Jewell", "Herb", "Steve", "Carmen",
+            "Bobby", "Odis", "Daron", "Jeremy", "Carl", "Hunter", "Tuan", "Thurman", "Asa", "Brenton", "Shane",
+            "Donny", "Andreas", "Teddy", "Dario", "Cyril", "Hoyt", "Teodoro", "Vincenzo", "Hilario", "Daren",
+            "Agustin", "Marquis", "Ezekiel", "Brendan", "Johnson", "Alden", "Richie", "Granville", "Chad", "Joseph",
+            "Lamont", "Jordon", "Gilberto", "Chong", "Rosendo", "Eddy", "Rob", "Dewitt", "Andre", "Titus", "Russell",
+            "Rigoberto", "Dick", "Garland", "Gabriel", "Hank", "Darius", "Ignacio", "Lazaro", "Johnie", "Mauro",
+            "Edmund", "Trent", "Harris", "Osvaldo", "Marvin", "Judson", "Rodney", "Randall", "Renato", "Richard",
+            "Denny", "Jon", "Doyle", "Cristopher", "Wilson", "Christian", "Jamie", "Roland", "Ken", "Tad", "Romeo",
+            "Seth", "Quinton", "Byron", "Ruben", "Darrel", "Deandre", "Broderick", "Harold", "Ty", "Monroe", "Landon",
+            "Mohammed", "Angel", "Arlen", "Elias", "Andres", "Carlton", "Numbers", "Tony", "Thaddeus", "Issac",
+            "Elmer", "Antoine", "Ned", "Fermin", "Grover", "Benito", "Abdul", "Cortez", "Eric", "Maxwell", "Coy",
+            "Gavin", "Rich", "Andy", "Del", "Giovanni", "Major", "Efren", "Horacio", "Joaquin", "Charles", "Noah",
+            "Deon", "Pasquale", "Reed", "Fausto", "Jermaine", "Irvin", "Ray", "Tobias", "Carter", "Yong", "Jorge",
+            "Brent", "Daniel", "Zane", "Walker", "Thad", "Shaun", "Jaime", "Mckinley", "Bradford", "Nathanial",
+            "Jerald", "Aubrey", "Virgil", "Abel", "Philip", "Chester", "Chadwick", "Dominick", "Britt", "Emmitt",
+            "Ferdinand", "Julian", "Reid", "Santos", "Dwain", "Morgan", "James", "Marion", "Micheal", "Eddie", "Brett",
+            "Stacy", "Kerry", "Dale", "Nicholas", "Darrick", "Freeman", "Scott", "Newton", "Sherman", "Felton",
+            "Cedrick", "Winfred", "Brad", "Fredric", "Dewayne", "Virgilio", "Reggie", "Edgar", "Heriberto", "Shad",
+            "Timmy", "Javier", "Nestor", "Royal", "Lynn", "Irwin", "Ismael", "Jonas", "Wiley", "Austin", "Kieth",
+            "Gonzalo", "Paris", "Earnest", "Arron", "Jarred", "Todd", "Erik", "Maria", "Chauncey", "Neil", "Conrad",
+            "Maurice", "Roosevelt", "Jacob", "Sydney", "Lee", "Basil", "Louis", "Rodolfo", "Rodger", "Roman", "Corey",
+            "Ambrose", "Cristobal", "Sylvester", "Benton", "Franklin", "Marcelo", "Guillermo", "Toby", "Jeramy",
+            "Donn", "Danny", "Dwight", "Clifford", "Valentine", "Matt", "Jules", "Kareem", "Ronny", "Lonny", "Son",
+            "Leopoldo", "Dannie", "Gregg", "Dillon", "Orlando", "Weston", "Kermit", "Damian", "Abraham", "Walton",
+            "Adrian", "Rudolf", "Will", "Les", "Norberto", "Fred", "Tyrone", "Ariel", "Terry", "Emmanuel", "Anderson",
+            "Elton", "Otis", "Derek", "Frankie", "Gino", "Lavern", "Jarod", "Kenny", "Dane", "Keenan", "Bryant",
+            "Eusebio", "Dorian", "Ali", "Lucas", "Wilford", "Jeremiah", "Warner", "Woodrow", "Galen", "Bob",
+            "Johnathon", "Amado", "Michel", "Harry", "Zachery", "Taylor", "Booker", "Hershel", "Mohammad", "Darrell",
+            "Kyle", "Stuart", "Marlin", "Hyman", "Jeffery", "Sidney", "Merrill", "Roy", "Garrett", "Porter", "Kenton",
+            "Giuseppe", "Terrance", "Trey", "Felix", "Buster", "Von", "Jackie", "Linwood", "Darron", "Francisco",
+            "Bernie", "Diego", "Brendon", "Cody", "Marco", "Ahmed", "Antonio", "Vince", "Brooks", "Kendrick", "Ross",
+            "Mohamed", "Jim", "Benny", "Gerald", "Pablo", "Charlie", "Antony", "Werner", "Hipolito", "Minh", "Mel",
+            "Derick", "Armand", "Fidel", "Lewis", "Donnell", "Desmond", "Vaughn", "Guadalupe", "Keneth", "Rodrick",
+            "Spencer", "Chas", "Gus", "Harlan", "Wes", "Carmelo", "Jefferson", "Gerard", "Jarvis", "Haywood", "Hayden",
+            "Sergio", "Gene", "Edgardo", "Colin", "Horace", "Dominic", "Aldo", "Adolfo", "Juan", "Man", "Lenard",
+            "Clement", "Everett", "Hal", "Bryon", "Mason", "Emerson", "Earle", "Laurence", "Columbus", "Lamar",
+            "Douglas", "Ian", "Fredrick", "Marc", "Loren", "Wallace", "Randell", "Noble", "Ricardo", "Rory", "Lindsey",
+            "Boris", "Bill", "Carlos", "Domingo", "Grant", "Craig", "Ezra", "Matthew", "Van", "Rudy", "Danial",
+            "Brock", "Maynard", "Vincent", "Cole", "Damion", "Ellsworth", "Marcel", "Markus", "Rueben", "Tanner",
+            "Reyes", "Hung", "Kennith", "Lindsay", "Howard", "Ralph", "Jed", "Monte", "Garfield", "Avery", "Bernardo",
+            "Malcolm", "Sterling", "Ezequiel", "Kristofer", "Luciano", "Casey", "Rosario", "Ellis", "Quintin",
+            "Trevor", "Miquel", "Jordan", "Arthur", "Carson", "Tyron", "Grady", "Walter", "Jonathon", "Ricky",
+            "Bennie", "Terrence", "Dion", "Dusty", "Roderick", "Isaac", "Rodrigo", "Harrison", "Zack", "Dee", "Devin",
+            "Rey", "Ulysses", "Clint", "Greg", "Dino", "Frances", "Wade", "Franklyn", "Jude", "Bradly", "Salvador",
+            "Rocky", "Weldon", "Lloyd", "Milford", "Clarence", "Alec", "Allan", "Bobbie", "Oswaldo", "Wilfred",
+            "Raleigh", "Shelby", "Willy", "Alphonso", "Arnoldo", "Robbie", "Truman", "Nicky", "Quinn", "Damien",
+            "Lacy", "Marcos", "Parker", "Burt", "Carroll", "Denver", "Buck", "Dong", "Normand", "Billie", "Edwin",
+            "Troy", "Arden", "Rusty", "Tommy", "Kenneth", "Leo", "Claud", "Joel", "Kendall", "Dante", "Milo", "Cruz",
+            "Lucien", "Ramon", "Jarrett", "Scottie", "Deshawn", "Ronnie", "Pete", "Alonzo", "Whitney", "Stefan",
+            "Sebastian", "Edmond", "Enrique", "Branden", "Leonard", "Loyd", "Olin", "Ron", "Rhett", "Frederic",
+            "Orval", "Tyrell", "Gail", "Eli", "Antonia", "Malcom", "Sandy", "Stacey", "Nickolas", "Hosea", "Santo",
+            "Oscar", "Fletcher", "Dave", "Patrick", "Dewey", "Bo", "Vito", "Blaine", "Randy", "Robin", "Winston",
+            "Sammy", "Edwardo", "Manuel", "Valentin", "Stanford", "Filiberto", "Buddy", "Zachariah", "Johnnie",
+            "Elbert", "Paul", "Isreal", "Jerrold", "Leif", "Owen", "Sung", "Junior", "Raphael", "Josef", "Donte",
+            "Allen", "Florencio", "Raymond", "Lauren", "Collin", "Eliseo", "Bruno", "Martin", "Lyndon", "Kurtis",
+            "Salvatore", "Erwin", "Michael", "Sean", "Davis", "Alberto", "King", "Rolland", "Joe", "Tory", "Chase",
+            "Dallas", "Vernon", "Beau", "Terrell", "Reynaldo", "Monty", "Jame", "Dirk", "Florentino", "Reuben", "Saul",
+            "Emory", "Esteban", "Michale", "Claudio", "Jacinto", "Kelley", "Levi", "Andrea", "Lanny", "Wendell",
+            "Elwood", "Joan", "Felipe", "Palmer", "Elmo", "Lawrence", "Hubert", "Rudolph", "Duane", "Cordell",
+            "Everette", "Mack", "Alan", "Efrain", "Trenton", "Bryan", "Tom", "Wilmer", "Clyde", "Chance", "Lou",
+            "Brain", "Justin", "Phil", "Jerrod", "George", "Kris", "Cyrus", "Emery", "Rickey", "Lincoln", "Renaldo",
+            "Mathew", "Luke", "Dwayne", "Alexis", "Jackson", "Gil", "Marty", "Burton", "Emil", "Glen", "Willian",
+            "Clemente", "Keven", "Barney", "Odell", "Reginald", "Aurelio", "Damon", "Ward", "Gustavo", "Harley",
+            "Peter", "Anibal", "Arlie", "Nigel", "Oren", "Zachary", "Scot", "Bud", "Wilbert", "Bart", "Josiah",
+            "Marlon", "Eldon", "Darryl", "Roger", "Anthony", "Omer", "Francis", "Patricia", "Moises", "Chuck",
+            "Waylon", "Hector", "Jamaal", "Cesar", "Julius", "Rex", "Norris", "Ollie", "Isaias", "Quentin", "Graig",
+            "Lyle", "Jeffry", "Karl", "Lester", "Danilo", "Mike", "Dylan", "Carlo", "Ryan", "Leon", "Percy", "Lucius",
+            "Jamel", "Lesley", "Joey", "Cornelius", "Rico", "Arnulfo", "Chet", "Margarito", "Ernie", "Nathanael",
+            "Amos", "Cleveland", "Luigi", "Alfonzo", "Phillip", "Clair", "Elroy", "Alva", "Hans", "Shon", "Gary",
+            "Jesus", "Cary", "Silas", "Keith", "Israel", "Willard", "Randolph", "Dan", "Adalberto", "Claude",
+            "Delbert", "Garry", "Mary", "Larry", "Riley", "Robt", "Darwin", "Barrett", "Steven", "Kelly", "Herschel",
+            "Darnell", "Scotty", "Armando", "Miguel", "Lawerence", "Wesley", "Garth", "Carol", "Micah", "Alvin",
+            "Billy", "Earl", "Pat", "Brady", "Cory", "Carey", "Bernard", "Jayson", "Nathaniel", "Gaylord", "Archie",
+            "Dorsey", "Erasmo", "Angelo", "Elisha", "Long", "Augustus", "Hobert", "Drew", "Stan", "Sherwood",
+            "Lorenzo", "Forrest", "Shawn", "Leigh", "Hiram", "Leonardo", "Gerry", "Myron", "Hugo", "Alvaro", "Leland",
+            "Genaro", "Jamey", "Stewart", "Elden", "Irving", "Olen", "Antone", "Freddy", "Lupe", "Joshua", "Gregory",
+            "Andrew", "Sang", "Wilbur", "Gerardo", "Merlin", "Williams", "Johnny", "Alex", "Tommie", "Jimmy",
+            "Donovan", "Dexter", "Gaston", "Tracy", "Jeff", "Stephen", "Berry", "Anton", "Darell", "Fritz", "Willis",
+            "Noel", "Mariano", "Crawford", "Zoey", "Alex", "Brianna", "Carlie", "Lloyd", "Cal", "Astor", "Randolf",
+            "Magdalene", "Trevelyan", "Terance", "Roy", "Kermit", "Harriett", "Crystal", "Laurinda", "Kiersten",
+            "Phyllida", "Liz", "Bettie", "Rena", "Colten", "Berenice", "Sindy", "Wilma", "Amos", "Candi", "Ritchie",
+            "Dirk", "Kathlyn", "Callista", "Anona", "Flossie", "Sterling", "Calista", "Regan", "Erica", "Jeana",
+            "Keaton", "York", "Nolan", "Daniel", "Benton", "Tommie", "Serenity", "Deanna", "Chas", "Heron", "Marlyn",
+            "Xylia", "Tristin", "Lyndon", "Andriana", "Madelaine", "Maddison", "Leila", "Chantelle", "Audrey",
+            "Connor", "Daley", "Tracee", "Tilda", "Eliot", "Merle", "Linwood", "Kathryn", "Silas", "Alvina",
+            "Phinehas", "Janis", "Alvena", "Zubin", "Gwendolen", "Caitlyn", "Bertram", "Hailee", "Idelle", "Homer",
+            "Jannah", "Delbert", "Rhianna", "Cy", "Jefferson", "Wayland", "Nona", "Tempest", "Reed", "Jenifer",
+            "Ellery", "Nicolina", "Aldous", "Prince", "Lexia", "Vinnie", "Doug", "Alberic", "Kayleen", "Woody",
+            "Rosanne", "Ysabel", "Skyler", "Twyla", "Geordie", "Leta", "Clive", "Aaron", "Scottie", "Celeste", "Chuck",
+            "Erle", "Lallie", "Jaycob", "Ray", "Carrie", "Laurita", "Noreen", "Meaghan", "Ulysses", "Andy", "Drogo",
+            "Dina", "Yasmin", "Mya", "Luvenia", "Urban", "Jacob", "Laetitia", "Sherry", "Love", "Michaela", "Deonne",
+            "Summer", "Brendon", "Sheena", "Mason", "Jayson", "Linden", "Salal", "Darrell", "Diana", "Hudson",
+            "Lennon", "Isador", "Charley", "April", "Ralph", "James", "Mina", "Jolyon", "Laurine", "Monna", "Carita",
+            "Munro", "Elsdon", "Everette", "Radclyffe", "Darrin", "Herbert", "Gawain", "Sheree", "Trudy", "Emmaline",
+            "Kassandra", "Rebecca", "Basil", "Jen", "Don", "Osborne", "Lilith", "Hannah", "Fox", "Rupert", "Paulene",
+            "Darius", "Wally", "Baptist", "Sapphire", "Tia", "Sondra", "Kylee", "Ashton", "Jepson", "Joetta", "Val",
+            "Adela", "Zacharias", "Zola", "Marmaduke", "Shannah", "Posie", "Oralie", "Brittany", "Ernesta", "Raymund",
+            "Denzil", "Daren", "Roosevelt", "Nelson", "Fortune", "Mariel", "Nick", "Jaden", "Upton", "Oz", "Margaux",
+            "Precious", "Albert", "Bridger", "Jimmy", "Nicola", "Rosalynne", "Keith", "Walt", "Della", "Joanna",
+            "Xenia", "Esmeralda", "Major", "Simon", "Rexana", "Stacy", "Calanthe", "Sherley", "Kaitlyn", "Graham",
+            "Ramsey", "Abbey", "Madlyn", "Kelvin", "Bill", "Rue", "Monica", "Caileigh", "Laraine", "Booker", "Jayna",
+            "Greta", "Jervis", "Sherman", "Kendrick", "Tommy", "Iris", "Geffrey", "Kaelea", "Kerr", "Garrick", "Jep",
+            "Audley", "Nic", "Bronte", "Beulah", "Patricia", "Jewell", "Deidra", "Cory", "Everett", "Harper",
+            "Charity", "Godfrey", "Jaime", "Sinclair", "Talbot", "Dayna", "Cooper", "Rosaline", "Jennie", "Eileen",
+            "Latanya", "Corinna", "Roxie", "Caesar", "Charles", "Pollie", "Lindsey", "Sorrel", "Dwight", "Jocelyn",
+            "Weston", "Shyla", "Valorie", "Bessie", "Josh", "Lessie", "Dayton", "Kathi", "Chasity", "Wilton", "Adam",
+            "William", "Ash", "Angela", "Ivor", "Ria", "Jazmine", "Hailey", "Jo", "Silvestra", "Ernie", "Clifford",
+            "Levi", "Matilda", "Quincey", "Camilla", "Delicia", "Phemie", "Laurena", "Bambi", "Lourdes", "Royston",
+            "Chastity", "Lynwood", "Elle", "Brenda", "Phoebe", "Timothy", "Raschelle", "Lilly", "Burt", "Rina",
+            "Rodney", "Maris", "Jaron", "Wilf", "Harlan", "Audra", "Vincent", "Elwyn", "Drew", "Wynter", "Ora",
+            "Lissa", "Virgil", "Xavier", "Chad", "Ollie", "Leyton", "Karolyn", "Skye", "Roni", "Gladys", "Dinah",
+            "Penny", "August", "Osmund", "Whitaker", "Brande", "Cornell", "Phil", "Zara", "Kilie", "Gavin", "Coty",
+            "Randy", "Teri", "Keira", "Pru", "Clemency", "Kelcey", "Nevil", "Poppy", "Gareth", "Christabel", "Bastian",
+            "Wynonna", "Roselyn", "Goddard", "Collin", "Trace", "Neal", "Effie", "Denys", "Virginia", "Richard",
+            "Isiah", "Harrietta", "Gaylord", "Diamond", "Trudi", "Elaine", "Jemmy", "Gage", "Annabel", "Quincy", "Syd",
+            "Marianna", "Philomena", "Aubree", "Kathie", "Jacki", "Kelley", "Bess", "Cecil", "Maryvonne", "Kassidy",
+            "Anselm", "Dona", "Darby", "Jamison", "Daryl", "Darell", "Teal", "Lennie", "Bartholomew", "Katie",
+            "Maybelline", "Kimball", "Elvis", "Les", "Flick", "Harley", "Beth", "Bidelia", "Montague", "Helen", "Ozzy",
+            "Stef", "Debra", "Maxene", "Stefanie", "Russ", "Avril", "Johnathan", "Orson", "Chelsey", "Josephine",
+            "Deshaun", "Wendell", "Lula", "Ferdinanda", "Greg", "Brad", "Kynaston", "Dena", "Russel", "Robertina",
+            "Misti", "Leon", "Anjelica", "Bryana", "Myles", "Judi", "Curtis", "Davin", "Kristia", "Chrysanta",
+            "Hayleigh", "Hector", "Osbert", "Eustace", "Cary", "Tansy", "Cayley", "Maryann", "Alissa", "Ike",
+            "Tranter", "Reina", "Alwilda", "Sidony", "Columbine", "Astra", "Jillie", "Stephania", "Jonah", "Kennedy",
+            "Ferdinand", "Allegria", "Donella", "Kelleigh", "Darian", "Eldreda", "Jayden", "Herbie", "Jake", "Winston",
+            "Vi", "Annie", "Cherice", "Hugo", "Tricia", "Haydee", "Cassarah", "Darden", "Mallory", "Alton", "Hadley",
+            "Romayne", "Lacey", "Ern", "Alayna", "Cecilia", "Seward", "Tilly", "Edgar", "Concordia", "Ibbie", "Dahlia",
+            "Oswin", "Stu", "Brett", "Maralyn", "Kristeen", "Dotty", "Robyn", "Nessa", "Tresha", "Guinevere",
+            "Emerson", "Haze", "Lyn", "Henderson", "Lexa", "Jaylen", "Gail", "Lizette", "Tiara", "Robbie", "Destiny",
+            "Alice", "Livia", "Rosy", "Leah", "Jan", "Zach", "Vita", "Gia", "Micheal", "Rowina", "Alysha", "Bobbi",
+            "Delores", "Osmond", "Karaugh", "Wilbur", "Kasandra", "Renae", "Kaety", "Dora", "Gaye", "Amaryllis",
+            "Katelyn", "Dacre", "Prudence", "Ebony", "Camron", "Jerrold", "Vivyan", "Randall", "Donna", "Misty",
+            "Damon", "Selby", "Esmund", "Rian", "Garry", "Julius", "Raelene", "Clement", "Dom", "Tibby", "Moss",
+            "Millicent", "Gwendoline", "Berry", "Ashleigh", "Lilac", "Quin", "Vere", "Creighton", "Harriet", "Malvina",
+            "Lianne", "Pearle", "Kizzie", "Kara", "Petula", "Jeanie", "Maria", "Pacey", "Victoria", "Huey", "Toni",
+            "Rose", "Wallis", "Diggory", "Josiah", "Delma", "Keysha", "Channing", "Prue", "Lee", "Ryan", "Sidney",
+            "Valerie", "Clancy", "Ezra", "Gilbert", "Clare", "Laz", "Crofton", "Mike", "Annabella", "Tara", "Eldred",
+            "Arthur", "Jaylon", "Peronel", "Paden", "Dot", "Marian", "Amyas", "Alexus", "Esmond", "Abbie", "Stanley",
+            "Brittani", "Vickie", "Errol", "Kimberlee", "Uland", "Ebenezer", "Howie", "Eveline", "Andrea", "Trish",
+            "Hopkin", "Bryanna", "Temperance", "Valarie", "Femie", "Alix", "Terrell", "Lewin", "Lorrin", "Happy",
+            "Micah", "Rachyl", "Sloan", "Gertrude", "Elizabeth", "Dorris", "Andra", "Bram", "Gary", "Jeannine",
+            "Maurene", "Irene", "Yolonda", "Jonty", "Coleen", "Cecelia", "Chantal", "Stuart", "Caris", "Ros",
+            "Kaleigh", "Mirabelle", "Kolby", "Primrose", "Susannah", "Ginny", "Jinny", "Dolly", "Lettice", "Sonny",
+            "Melva", "Ernest", "Garret", "Reagan", "Trenton", "Gallagher", "Edwin", "Nikolas", "Corrie", "Lynette",
+            "Ettie", "Sly", "Debbi", "Eudora", "Brittney", "Tacey", "Marius", "Anima", "Gordon", "Olivia", "Kortney",
+            "Shantel", "Kolleen", "Nevaeh", "Buck", "Sera", "Liliana", "Aric", "Kalyn", "Mick", "Libby", "Ingram",
+            "Alexandria", "Darleen", "Jacklyn", "Hughie", "Tyler", "Aida", "Ronda", "Deemer", "Taryn", "Laureen",
+            "Samantha", "Dave", "Hardy", "Baldric", "Montgomery", "Gus", "Ellis", "Titania", "Luke", "Chase", "Haidee",
+            "Mayra", "Isabell", "Trinity", "Milo", "Abigail", "Tacita", "Meg", "Hervey", "Natasha", "Sadie", "Holden",
+            "Dee", "Mansel", "Perry", "Randi", "Frederica", "Georgina", "Kolour", "Debbie", "Seraphina", "Elspet",
+            "Julyan", "Raven", "Zavia", "Jarvis", "Jaymes", "Grover", "Cairo", "Alea", "Jordon", "Braxton", "Donny",
+            "Rhoda", "Tonya", "Bee", "Alyssia", "Ashlyn", "Reanna", "Lonny", "Arlene", "Deb", "Jane", "Nikole",
+            "Bettina", "Harrison", "Tamzen", "Arielle", "Adelaide", "Faith", "Bridie", "Wilburn", "Fern", "Nan",
+            "Shaw", "Zeke", "Alan", "Dene", "Gina", "Alexa", "Bailey", "Sal", "Tammy", "Maximillian", "America",
+            "Sylvana", "Fitz", "Mo", "Marissa", "Cass", "Eldon", "Wilfrid", "Tel", "Joann", "Kendra", "Tolly",
+            "Leanne", "Ferdie", "Haven", "Lucas", "Marlee", "Cyrilla", "Red", "Phoenix", "Jazmin", "Carin", "Gena",
+            "Lashonda", "Tucker", "Genette", "Kizzy", "Winifred", "Melody", "Keely", "Kaylyn", "Radcliff", "Lettie",
+            "Foster", "Lyndsey", "Nicholas", "Farley", "Louisa", "Dana", "Dortha", "Francine", "Doran", "Bonita",
+            "Hal", "Sawyer", "Reginald", "Aislin", "Nathan", "Baylee", "Abilene", "Ladonna", "Maurine", "Shelly",
+            "Deandre", "Jasmin", "Roderic", "Tiffany", "Amanda", "Verity", "Wilford", "Gayelord", "Whitney", "Demelza",
+            "Kenton", "Alberta", "Kyra", "Tabitha", "Sampson", "Korey", "Lillian", "Edison", "Clayton", "Steph",
+            "Maya", "Dusty", "Jim", "Ronny", "Adrianne", "Bernard", "Harris", "Kiley", "Alexander", "Kisha", "Ethalyn",
+            "Patience", "Briony", "Indigo", "Aureole", "Makenzie", "Molly", "Sherilyn", "Barry", "Laverne", "Hunter",
+            "Rocky", "Tyreek", "Madalyn", "Phyliss", "Chet", "Beatrice", "Faye", "Lavina", "Madelyn", "Tracey",
+            "Gyles", "Patti", "Carlyn", "Stephanie", "Jackalyn", "Larrie", "Kimmy", "Isolda", "Emelina", "Lis",
+            "Zillah", "Cody", "Sheard", "Rufus", "Paget", "Mae", "Rexanne", "Luvinia", "Tamsen", "Rosanna", "Greig",
+            "Stacia", "Mabelle", "Quianna", "Lotus", "Delice", "Bradford", "Angus", "Cosmo", "Earlene", "Adrian",
+            "Arlie", "Noelle", "Sabella", "Isa", "Adelle", "Innocent", "Kirby", "Trixie", "Kenelm", "Nelda", "Melia",
+            "Kendal", "Dorinda", "Placid", "Linette", "Kam", "Sherisse", "Evan", "Ewart", "Janice", "Linton",
+            "Jacaline", "Charissa", "Douglas", "Aileen", "Kemp", "Oli", "Amethyst", "Rosie", "Nigella", "Sherill",
+            "Anderson", "Alanna", "Eric", "Claudia", "Jennifer", "Boniface", "Harriet", "Vernon", "Lucy", "Shawnee",
+            "Gerard", "Cecily", "Romey", "Randall", "Wade", "Lux", "Dawson", "Gregg", "Kade", "Roxanne", "Melinda",
+            "Rolland", "Rowanne", "Fannie", "Isidore", "Melia", "Harvie", "Salal", "Eleonor", "Jacquette", "Lavone",
+            "Shanika", "Tarquin", "Janet", "Josslyn", "Maegan", "Augusta", "Aubree", "Francene", "Martie", "Marisa",
+            "Tyreek", "Tatianna", "Caleb", "Sheridan", "Nellie", "Barbara", "Wat", "Jayla", "Esmaralda", "Graeme",
+            "Lavena", "Jemima", "Nikolas", "Triston", "Portia", "Kyla", "Marcus", "Raeburn", "Jamison", "Earl", "Wren",
+            "Leighton", "Lagina", "Lucasta", "Dina", "Amaranta", "Jessika", "Claud", "Bernard", "Winifred", "Ebba",
+            "Sammi", "Gall", "Chloe", "Ottoline", "Herbert", "Janice", "Gareth", "Channing", "Caleigh", "Kailee",
+            "Ralphie", "Tamzen", "Quincy", "Beaumont", "Albert", "Jadyn", "Violet", "Luanna", "Moriah", "Humbert",
+            "Jed", "Leona", "Hale", "Mitch", "Marlin", "Nivek", "Darwin", "Dirk", "Liliana", "Meadow", "Bernadine",
+            "Jorie", "Peyton", "Astra", "Roscoe", "Gina", "Lovell", "Jewel", "Romayne", "Rosy", "Imogene",
+            "Margaretta", "Lorinda", "Hopkin", "Bobby", "Flossie", "Bennie", "Horatio", "Jonah", "Lyn", "Deana",
+            "Juliana", "Blanch", "Wright", "Kendal", "Woodrow", "Tania", "Austyn", "Val", "Mona", "Charla", "Rudyard",
+            "Pamela", "Raven", "Zena", "Nicola", "Kaelea", "Conor", "Virgil", "Sonnie", "Goodwin", "Christianne",
+            "Linford", "Myron", "Denton", "Charita", "Brody", "Ginnie", "Harrison", "Jeanine", "Quin", "Isolda",
+            "Zoie", "Pearce", "Margie", "Larrie", "Angelina", "Marcia", "Jessamine", "Delilah", "Dick", "Luana",
+            "Delicia", "Lake", "Luvenia", "Vaughan", "Concordia", "Gayelord", "Cheyenne", "Felix", "Dorris", "Pen",
+            "Kristeen", "Parris", "Everitt", "Josephina", "Amy", "Tommie", "Adrian", "April", "Rosaline", "Zachery",
+            "Trace", "Phoebe", "Jenelle", "Kameron", "Katharine", "Media", "Colton", "Tad", "Quianna", "Kerenza",
+            "Greta", "Luvinia", "Pete", "Tonya", "Beckah", "Barbra", "Jon", "Tetty", "Corey", "Sylvana", "Kizzy",
+            "Korey", "Trey", "Haydee", "Penny", "Mandy", "Panda", "Coline", "Ramsey", "Sukie", "Annabel", "Sarina",
+            "Corbin", "Suzanna", "Rob", "Duana", "Shell", "Jason", "Eddy", "Rube", "Roseann", "Celia", "Brianne",
+            "Nerissa", "Jera", "Humphry", "Ashlynn", "Terrence", "Philippina", "Coreen", "Kolour", "Indiana", "Paget",
+            "Marlyn", "Hester", "Isbel", "Ocean", "Harris", "Leslie", "Vere", "Monroe", "Isabelle", "Bertie", "Clitus",
+            "Dave", "Alethea", "Lessie", "Louiza", "Madlyn", "Garland", "Wolf", "Lalo", "Donny", "Amabel", "Tianna",
+            "Louie", "Susie", "Mackenzie", "Renie", "Tess", "Marmaduke", "Gwendolen", "Bettina", "Beatrix", "Esmund",
+            "Minnie", "Carlie", "Barnabas", "Ruthie", "Honour", "Haylie", "Xavior", "Freddie", "Ericka", "Aretha",
+            "Edie", "Madelina", "Anson", "Tabby", "Derrick", "Jocosa", "Deirdre", "Aislin", "Chastity", "Abigail",
+            "Wynonna", "Zo", "Eldon", "Krystine", "Ghislaine", "Zavia", "Nolene", "Marigold", "Kelley", "Sylvester",
+            "Odell", "George", "Laurene", "Franklyn", "Clarice", "Mo", "Dustin", "Debbi", "Lina", "Tony", "Acacia",
+            "Hettie", "Natalee", "Marcie", "Brittany", "Elnora", "Rachel", "Dawn", "Basil", "Christal", "Anjelica",
+            "Fran", "Tawny", "Delroy", "Tameka", "Lillie", "Ceara", "Deanna", "Deshaun", "Ken", "Bradford", "Justina",
+            "Merle", "Draven", "Gretta", "Harriette", "Webster", "Nathaniel", "Anemone", "Coleen", "Ruth", "Chryssa",
+            "Hortensia", "Saffie", "Deonne", "Leopold", "Harlan", "Lea", "Eppie", "Lucinda", "Tilda", "Fanny", "Titty",
+            "Lockie", "Jepson", "Sherisse", "Maralyn", "Ethel", "Sly", "Ebenezer", "Canute", "Ella", "Freeman",
+            "Reuben", "Olivette", "Nona", "Rik", "Amice", "Kristine", "Kathie", "Jayne", "Jeri", "Mckenna", "Bertram",
+            "Kaylee", "Livia", "Gil", "Wallace", "Maryann", "Keeleigh", "Laurinda", "Doran", "Khloe", "Dakota",
+            "Yaron", "Kimberleigh", "Gytha", "Doris", "Marylyn", "Benton", "Linnette", "Esther", "Jakki", "Rowina",
+            "Marian", "Roselyn", "Norbert", "Maggie", "Caesar", "Phinehas", "Jerry", "Jasmine", "Antonette", "Miriam",
+            "Monna", "Maryvonne", "Jacquetta", "Bernetta", "Napier", "Annie", "Gladwin", "Sheldon", "Aric", "Elouise",
+            "Gawain", "Kristia", "Gabe", "Kyra", "Red", "Tod", "Dudley", "Lorraine", "Ryley", "Sabina", "Poppy",
+            "Leland", "Aileen", "Eglantine", "Alicia", "Jeni", "Addy", "Tiffany", "Geffrey", "Lavina", "Collin",
+            "Clover", "Vin", "Jerome", "Doug", "Vincent", "Florence", "Scarlet", "Celeste", "Desdemona", "Tiphanie",
+            "Kassandra", "Ashton", "Madison", "Art", "Magdalene", "Iona", "Josepha", "Anise", "Ferne", "Derek",
+            "Huffie", "Qiana", "Ysabel", "Tami", "Shannah", "Xavier", "Willard", "Winthrop", "Vickie", "Maura",
+            "Placid", "Tiara", "Reggie", "Elissa", "Isa", "Chrysanta", "Jeff", "Bessie", "Terri", "Amilia", "Brett",
+            "Daniella", "Damion", "Carolina", "Maximillian", "Travers", "Benjamin", "Oprah", "Darcy", "Yolanda",
+            "Nicolina", "Crofton", "Jarrett", "Kaitlin", "Shauna", "Keren", "Bevis", "Kalysta", "Sharron", "Alyssa",
+            "Blythe", "Zelma", "Caelie", "Norwood", "Billie", "Patrick", "Gary", "Cambria", "Tylar", "Mason", "Helen",
+            "Melyssa", "Gene", "Gilberta", "Carter", "Herbie", "Harmonie", "Leola", "Eugenia", "Clint", "Pauletta",
+            "Edwyna", "Georgina", "Teal", "Harper", "Izzy", "Dillon", "Kezia", "Evangeline", "Colene", "Madelaine",
+            "Zilla", "Rudy", "Dottie", "Caris", "Morton", "Marge", "Tacey", "Parker", "Troy", "Liza", "Lewin",
+            "Tracie", "Justine", "Dallas", "Linden", "Ray", "Loretta", "Teri", "Elvis", "Diane", "Julianna", "Manfred",
+            "Denise", "Eireen", "Ann", "Kenith", "Linwood", "Kathlyn", "Bernice", "Shelley", "Oswald", "Amedeus",
+            "Homer", "Tanzi", "Ted", "Ralphina", "Hyacinth", "Lotus", "Matthias", "Arlette", "Clark", "Cecil",
+            "Elspeth", "Alvena", "Noah", "Millard", "Brenden", "Cole", "Philipa", "Nina", "Thelma", "Iantha", "Reid",
+            "Jefferson", "Meg", "Elsie", "Shirlee", "Nathan", "Nancy", "Simona", "Racheal", "Carin", "Emory", "Delice",
+            "Kristi", "Karaugh", "Kaety", "Tilly", "Em", "Alanis", "Darrin", "Jerrie", "Hollis", "Cary", "Marly",
+            "Carita", "Jody", "Farley", "Hervey", "Rosalin", "Cuthbert", "Stewart", "Jodene", "Caileigh", "Briscoe",
+            "Dolores", "Sheree", "Eustace", "Nigel", "Detta", "Barret", "Rowland", "Kenny", "Githa", "Zoey", "Adela",
+            "Petronella", "Opal", "Coleman", "Niles", "Cyril", "Dona", "Alberic", "Allannah", "Jules", "Avalon",
+            "Hadley", "Thomas", "Renita", "Calanthe", "Heron", "Shawnda", "Chet", "Malina", "Manny", "Rina", "Frieda",
+            "Eveleen", "Deshawn", "Amos", "Raelene", "Paige", "Molly", "Nannie", "Ileen", "Brendon", "Milford",
+            "Unice", "Rebeccah", "Caedmon", "Gae", "Doreen", "Vivian", "Louis", "Raphael", "Vergil", "Lise", "Glenn",
+            "Karyn", "Terance", "Reina", "Jake", "Gordon", "Wisdom", "Isiah", "Gervase", "Fern", "Marylou", "Roddy",
+            "Justy", "Derick", "Shantelle", "Adam", "Chantel", "Madoline", "Emmerson", "Lexie", "Mickey", "Stephen",
+            "Dane", "Stacee", "Elwin", "Tracey", "Alexandra", "Ricky", "Ian", "Kasey", "Rita", "Alanna", "Georgene",
+            "Deon", "Zavier", "Ophelia", "Deforest", "Lowell", "Zubin", "Hardy", "Osmund", "Tabatha", "Debby",
+            "Katlyn", "Tallulah", "Priscilla", "Braden", "Wil", "Keziah", "Jen", "Aggie", "Korbin", "Lemoine",
+            "Barnaby", "Tranter", "Goldie", "Roderick", "Trina", "Emery", "Pris", "Sidony", "Adelle", "Tate", "Wilf",
+            "Zola", "Brande", "Chris", "Calanthia", "Lilly", "Kaycee", "Lashonda", "Jasmin", "Elijah", "Shantel",
+            "Simon", "Rosalind", "Jarod", "Kaylie", "Corrine", "Joselyn", "Archibald", "Mariabella", "Winton",
+            "Merlin", "Chad", "Ursula", "Kristopher", "Hewie", "Adrianna", "Lyndsay", "Jasmyn", "Tim", "Evette",
+            "Margaret", "Samson", "Bronte", "Terence", "Leila", "Candice", "Tori", "Jamey", "Coriander", "Conrad",
+            "Floyd", "Karen", "Lorin", "Maximilian", "Cairo", "Emily", "Yasmin", "Karolyn", "Bryan", "Lanny",
+            "Kimberly", "Rick", "Chaz", "Krystle", "Lyric", "Laura", "Garrick", "Flip", "Monty", "Brendan",
+            "Ermintrude", "Rayner", "Merla", "Titus", "Marva", "Patricia", "Leone", "Tracy", "Jaqueline", "Hallam",
+            "Delores", "Cressida", "Carlyle", "Leann", "Kelcey", "Laurence", "Ryan", "Reynold", "Mark", "Collyn",
+            "Audie", "Sammy", "Ellery", "Sallie", "Pamelia", "Adolph", "Lydia", "Titania", "Ron", "Bridger", "Aline",
+            "Read", "Kelleigh", "Weldon", "Irving", "Garey", "Diggory", "Evander", "Kylee", "Deidre", "Ormond",
+            "Laurine", "Reannon", "Arline", "Pat"
+
+    };
+
+    public static String[] jargon = { "wireless", "signal", "network", "3G", "plan", "touch-screen",
+            "customer-service", "reachability", "voice-command", "shortcut-menu", "customization", "platform", "speed",
+            "voice-clarity", "voicemail-service" };
+
+    public static String[] vendors = { "at&t", "verizon", "t-mobile", "sprint", "motorola", "samsung", "iphone" };
+
+    public static String[] org_list = { "Latsonity", "ganjalax", "Zuncan", "Lexitechno", "Hot-tech", "subtam",
+            "Coneflex", "Ganjatax", "physcane", "Tranzap", "Qvohouse", "Zununoing", "jaydax", "Keytech", "goldendexon",
+            "Villa-tech", "Trustbam", "Newcom", "Voltlane", "Ontohothex", "Ranhotfan", "Alphadax", "Transhigh",
+            "kin-ron", "Doublezone", "Solophase", "Vivaace", "silfind", "Basecone", "sonstreet", "Freshfix",
+            "Techitechi", "Kanelectrics", "linedexon", "Goldcity", "Newfase", "Technohow", "Zimcone", "Salthex",
+            "U-ron", "Solfix", "whitestreet", "Xx-technology", "Hexviafind", "over-it", "Strongtone", "Tripplelane",
+            "geomedia", "Scotcity", "Inchex", "Vaiatech", "Striptaxon", "Hatcom", "tresline", "Sanjodax", "freshdox",
+            "Sumlane", "Quadlane", "Newphase", "overtech", "Voltbam", "Icerunin", "Fixdintex", "Hexsanhex", "Statcode",
+            "Greencare", "U-electrics", "Zamcorporation", "Ontotanin", "Tanzimcare", "Groovetex", "Ganjastrip",
+            "Redelectronics", "Dandamace", "Whitemedia", "strongex", "Streettax", "highfax", "Mathtech", "Xx-drill",
+            "Sublamdox", "Unijobam", "Rungozoom", "Fixelectrics", "Villa-dox", "Ransaofan", "Plexlane", "itlab",
+            "Lexicone", "Fax-fax", "Viatechi", "Inchdox", "Kongreen", "Doncare", "Y-geohex", "Opeelectronics",
+            "Medflex", "Dancode", "Roundhex", "Labzatron", "Newhotplus", "Sancone", "Ronholdings", "Quoline",
+            "zoomplus", "Fix-touch", "Codetechno", "Tanzumbam", "Indiex", "Canline" };
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGeneratorDriver.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGeneratorDriver.java
new file mode 100644
index 0000000..b2ba88e
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/DataGeneratorDriver.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.Iterator;
+
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.InitializationInfo;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.TweetMessage;
+
+public class DataGeneratorDriver {
+
+    public static void main(String[] args) {
+
+        DataGenerator.initialize(new InitializationInfo());
+        Iterator<TweetMessage> tweetIterator = DataGenerator.getTwitterMessageIterator();
+        while (tweetIterator.hasNext()) {
+            System.out.println(tweetIterator.next().toString());
+        }
+    }
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java
new file mode 100644
index 0000000..bd456a2
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java
@@ -0,0 +1,97 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.dataset.adapter.StreamBasedAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+public class GenericSocketFeedAdapter extends StreamBasedAdapter implements IFeedAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final String KEY_PORT = "port";
+
+    private static final Logger LOGGER = Logger.getLogger(GenericSocketFeedAdapter.class.getName());
+
+    private Map<String, String> configuration;
+
+    private SocketFeedServer socketFeedServer;
+
+    private static final int DEFAULT_PORT = 2909;
+
+    public GenericSocketFeedAdapter(Map<String, String> configuration, ITupleParserFactory parserFactory,
+            ARecordType outputtype, IHyracksTaskContext ctx) throws AsterixException, IOException {
+        super(parserFactory, outputtype, ctx);
+        this.configuration = configuration;
+        String portValue = (String) this.configuration.get(KEY_PORT);
+        int port = portValue != null ? Integer.parseInt(portValue) : DEFAULT_PORT;
+        this.socketFeedServer = new SocketFeedServer(configuration, outputtype, port);
+    }
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        super.start(partition, writer);
+    }
+
+    @Override
+    public InputStream getInputStream(int partition) throws IOException {
+        return socketFeedServer.getInputStream();
+    }
+
+    private static class SocketFeedServer {
+        private ServerSocket serverSocket;
+        private InputStream inputStream;
+
+        public SocketFeedServer(Map<String, String> configuration, ARecordType outputtype, int port)
+                throws IOException, AsterixException {
+            try {
+                serverSocket = new ServerSocket(port);
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("port: " + port + " unusable ");
+                }
+            }
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Feed server configured to use port: " + port);
+            }
+        }
+
+        public InputStream getInputStream() {
+            Socket socket;
+            try {
+                socket = serverSocket.accept();
+                inputStream = socket.getInputStream();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return inputStream;
+        }
+
+        public void stop() throws IOException {
+            serverSocket.close();
+        }
+
+    }
+
+    @Override
+    public void stop() throws Exception {
+        socketFeedServer.stop();
+    }
+
+    @Override
+    public void alter(Map<String, String> properties) {
+        // TODO Auto-generated method stub
+
+    }
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapterFactory.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapterFactory.java
new file mode 100644
index 0000000..788bb4f
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapterFactory.java
@@ -0,0 +1,74 @@
+/*
+x * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.adapter.factory.StreamBasedAdapterFactory;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * Factory class for creating @see{GenericSocketFeedAdapter} The
+ * adapter listens at a port for receiving data (from external world).
+ * Data received is transformed into Asterix Data Format (ADM) and stored into
+ * a dataset a configured in the Adapter configuration.
+ */
+public class GenericSocketFeedAdapterFactory extends StreamBasedAdapterFactory implements IGenericAdapterFactory {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+
+    private ARecordType outputType;
+
+    @Override
+    public String getName() {
+        return "generic_socket_feed";
+    }
+
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.GENERIC;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration, ARecordType outputType) throws Exception {
+        this.configuration = configuration;
+        outputType = (ARecordType) outputType;
+        this.configureFormat(outputType);
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return new AlgebricksCountPartitionConstraint(1);
+    }
+
+    @Override
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        return new GenericSocketFeedAdapter(configuration, parserFactory, outputType, ctx);
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java
index e037ec6..80565b2 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java
@@ -18,43 +18,28 @@
 import java.io.InputStream;
 import java.util.Map;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.runtime.operators.file.ADMDataParser;
-import edu.uci.ics.asterix.runtime.operators.file.AbstractTupleParser;
-import edu.uci.ics.asterix.runtime.operators.file.DelimitedDataParser;
-import edu.uci.ics.asterix.runtime.operators.file.IDataParser;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
 /**
- * An adapter that simulates a feed from the contents of a source file. The file can be on the local file
- * system or on HDFS. The feed ends when the content of the source file has been ingested.
+ * An adapter that simulates a feed from the contents of a source file. The file
+ * can be on the local file system or on HDFS. The feed ends when the content of
+ * the source file has been ingested.
  */
-public class RateControlledFileSystemBasedAdapter extends FileSystemBasedAdapter implements ITypedDatasourceAdapter,
-        IManagedFeedAdapter {
+
+public class RateControlledFileSystemBasedAdapter extends FileSystemBasedAdapter implements IFeedAdapter {
 
     private static final long serialVersionUID = 1L;
     private FileSystemBasedAdapter coreAdapter;
-    private String format;
 
-    public RateControlledFileSystemBasedAdapter(ARecordType atype, Map<String, Object> configuration,
-            FileSystemBasedAdapter coreAdapter, String format) throws Exception {
-        super(atype);
-        this.configuration = configuration;
+    public RateControlledFileSystemBasedAdapter(ARecordType atype, Map<String, String> configuration,
+            FileSystemBasedAdapter coreAdapter, String format, ITupleParserFactory parserFactory,
+            IHyracksTaskContext ctx) throws Exception {
+        super(parserFactory, atype, ctx);
         this.coreAdapter = coreAdapter;
-        this.format = format;
     }
 
     @Override
@@ -63,184 +48,14 @@
     }
 
     @Override
-    public void initialize(IHyracksTaskContext ctx) throws Exception {
-        coreAdapter.initialize(ctx);
-        this.ctx = ctx;
-    }
-
-    @Override
-    public void configure(Map<String, Object> arguments) throws Exception {
-        coreAdapter.configure(arguments);
-    }
-
-    @Override
-    public AdapterType getAdapterType() {
-        return coreAdapter.getAdapterType();
-    }
-
-    @Override
-    protected ITupleParser getTupleParser() throws Exception {
-        ITupleParser parser = null;
-        if (format.equals(FORMAT_DELIMITED_TEXT)) {
-            parser = getRateControlledDelimitedDataTupleParser((ARecordType) atype);
-        } else if (format.equals(FORMAT_ADM)) {
-            parser = getRateControlledADMDataTupleParser((ARecordType) atype);
-        } else {
-            throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
-        }
-        return parser;
-
-    }
-
-    protected ITupleParser getRateControlledDelimitedDataTupleParser(ARecordType recordType) throws AsterixException,
-            HyracksDataException {
-        ITupleParser parser;
-        int n = recordType.getFieldTypes().length;
-        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
-        for (int i = 0; i < n; i++) {
-            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
-            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
-            if (vpf == null) {
-                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
-            }
-            fieldParserFactories[i] = vpf;
-
-        }
-        String delimiterValue = (String) configuration.get(KEY_DELIMITER);
-        if (delimiterValue != null && delimiterValue.length() > 1) {
-            throw new AsterixException("improper delimiter");
-        }
-
-        Character delimiter = delimiterValue.charAt(0);
-        parser = new RateControlledTupleParserFactory(recordType, fieldParserFactories, delimiter, configuration)
-                .createTupleParser(ctx);
-        return parser;
-    }
-
-    protected ITupleParser getRateControlledADMDataTupleParser(ARecordType recordType) throws AsterixException {
-        ITupleParser parser = null;
-        try {
-            parser = new RateControlledTupleParserFactory(recordType, configuration).createTupleParser(ctx);
-            return parser;
-        } catch (Exception e) {
-            throw new AsterixException(e);
-        }
-
-    }
-
-    @Override
-    public ARecordType getAdapterOutputType() {
-        return (ARecordType) atype;
-    }
-
-    @Override
     public void alter(Map<String, String> properties) {
-        ((RateControlledTupleParser) parser).setInterTupleInterval(Long.parseLong(properties
+        ((RateControlledTupleParser) tupleParser).setInterTupleInterval(Long.parseLong(properties
                 .get(RateControlledTupleParser.INTER_TUPLE_INTERVAL)));
     }
 
     @Override
     public void stop() {
-        ((RateControlledTupleParser) parser).stop();
+        ((RateControlledTupleParser) tupleParser).stop();
     }
 
-    @Override
-    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
-        return coreAdapter.getPartitionConstraint();
-    }
-}
-
-class RateControlledTupleParserFactory implements ITupleParserFactory {
-
-    private static final long serialVersionUID = 1L;
-
-    private final ARecordType recordType;
-    private final IDataParser dataParser;
-    private final Map<String, Object> configuration;
-
-    public RateControlledTupleParserFactory(ARecordType recordType, IValueParserFactory[] valueParserFactories,
-            char fieldDelimiter, Map<String, Object> configuration) {
-        this.recordType = recordType;
-        dataParser = new DelimitedDataParser(recordType, valueParserFactories, fieldDelimiter);
-        this.configuration = configuration;
-    }
-
-    public RateControlledTupleParserFactory(ARecordType recordType, Map<String, Object> configuration) {
-        this.recordType = recordType;
-        dataParser = new ADMDataParser();
-        this.configuration = configuration;
-    }
-
-    @Override
-    public ITupleParser createTupleParser(IHyracksTaskContext ctx) throws HyracksDataException {
-        return new RateControlledTupleParser(ctx, recordType, dataParser, configuration);
-    }
-
-}
-
-class RateControlledTupleParser extends AbstractTupleParser {
-
-    private final IDataParser dataParser;
-    private long interTupleInterval;
-    private boolean delayConfigured;
-    private boolean continueIngestion = true;
-
-    public static final String INTER_TUPLE_INTERVAL = "tuple-interval";
-
-    public RateControlledTupleParser(IHyracksTaskContext ctx, ARecordType recType, IDataParser dataParser,
-            Map<String, Object> configuration) throws HyracksDataException {
-        super(ctx, recType);
-        this.dataParser = dataParser;
-        String propValue = (String) configuration.get(INTER_TUPLE_INTERVAL);
-        if (propValue != null) {
-            interTupleInterval = Long.parseLong(propValue);
-        } else {
-            interTupleInterval = 0;
-        }
-        delayConfigured = interTupleInterval != 0;
-    }
-
-    public void setInterTupleInterval(long val) {
-        this.interTupleInterval = val;
-        this.delayConfigured = val > 0;
-    }
-
-    public void stop() {
-        continueIngestion = false;
-    }
-
-    @Override
-    public IDataParser getDataParser() {
-        return dataParser;
-    }
-
-    @Override
-    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
-
-        appender.reset(frame, true);
-        IDataParser parser = getDataParser();
-        try {
-            parser.initialize(in, recType, true);
-            while (continueIngestion) {
-                tb.reset();
-                if (!parser.parse(tb.getDataOutput())) {
-                    break;
-                }
-                tb.addFieldEndOffset();
-                if (delayConfigured) {
-                    Thread.sleep(interTupleInterval);
-                }
-                addTupleToFrame(writer);
-            }
-            if (appender.getTupleCount() > 0) {
-                FrameUtils.flushFrame(frame, writer);
-            }
-        } catch (AsterixException ae) {
-            throw new HyracksDataException(ae);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
-        } catch (InterruptedException ie) {
-            throw new HyracksDataException(ie);
-        }
-    }
 }
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java
index bf3c086..40bc814 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java
@@ -14,14 +14,32 @@
  */
 package edu.uci.ics.asterix.tools.external.data;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.Map;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.StreamBasedAdapterFactory;
 import edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter;
-import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IGenericAdapterFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.runtime.operators.file.ADMDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.AbstractTupleParser;
+import edu.uci.ics.asterix.runtime.operators.file.DelimitedDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.IDataParser;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
 /**
  * Factory class for creating @see{RateControllerFileSystemBasedAdapter} The
@@ -29,38 +47,25 @@
  * on the local file system or on HDFS. The feed ends when the content of the
  * source file has been ingested.
  */
-public class RateControlledFileSystemBasedAdapterFactory implements IGenericDatasetAdapterFactory {
+public class RateControlledFileSystemBasedAdapterFactory extends StreamBasedAdapterFactory implements
+        IGenericAdapterFactory {
     private static final long serialVersionUID = 1L;
-    
+
     public static final String KEY_FILE_SYSTEM = "fs";
     public static final String LOCAL_FS = "localfs";
     public static final String HDFS = "hdfs";
     public static final String KEY_PATH = "path";
     public static final String KEY_FORMAT = "format";
 
-    private IGenericDatasetAdapterFactory adapterFactory;
+    private IGenericAdapterFactory adapterFactory;
     private String format;
-    private boolean setup = false;
+    private Map<String, String> configuration;
+    private ARecordType atype;
 
     @Override
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType type) throws Exception {
-        if (!setup) {
-            checkRequiredArgs(configuration);
-            String fileSystem = (String) configuration.get(KEY_FILE_SYSTEM);
-            String adapterFactoryClass = null;
-            if (fileSystem.equalsIgnoreCase(LOCAL_FS)) {
-                adapterFactoryClass = "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory";
-            } else if (fileSystem.equals(HDFS)) {
-                adapterFactoryClass = "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory";
-            } else {
-                throw new AsterixException("Unsupported file system type " + fileSystem);
-            }
-            format = (String) configuration.get(KEY_FORMAT);
-            adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactoryClass).newInstance();
-            setup = true;
-        }
-        return new RateControlledFileSystemBasedAdapter((ARecordType) type, configuration,
-                (FileSystemBasedAdapter) adapterFactory.createAdapter(configuration, type), format);
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        FileSystemBasedAdapter coreAdapter = (FileSystemBasedAdapter) adapterFactory.createAdapter(ctx);
+        return new RateControlledFileSystemBasedAdapter(atype, configuration, coreAdapter, format, parserFactory, ctx);
     }
 
     @Override
@@ -68,11 +73,11 @@
         return "file_feed";
     }
 
-    private void checkRequiredArgs(Map<String, Object> configuration) throws Exception {
+    private void checkRequiredArgs(Map<String, String> configuration) throws Exception {
         if (configuration.get(KEY_FILE_SYSTEM) == null) {
             throw new Exception("File system type not specified. (fs=?) File system could be 'localfs' or 'hdfs'");
         }
-        if (configuration.get(IGenericDatasetAdapterFactory.KEY_TYPE_NAME) == null) {
+        if (configuration.get(KEY_SOURCE_DATATYPE) == null) {
             throw new Exception("Record type not specified (output-type-name=?)");
         }
         if (configuration.get(KEY_PATH) == null) {
@@ -83,4 +88,186 @@
         }
     }
 
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.GENERIC;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration, ARecordType recordType) throws Exception {
+        this.configuration = configuration;
+        checkRequiredArgs(configuration);
+        String fileSystem = (String) configuration.get(KEY_FILE_SYSTEM);
+        String adapterFactoryClass = null;
+        if (fileSystem.equalsIgnoreCase(LOCAL_FS)) {
+            adapterFactoryClass = NCFileSystemAdapterFactory.class.getName();
+        } else if (fileSystem.equals(HDFS)) {
+            adapterFactoryClass = HDFSAdapterFactory.class.getName();
+        } else {
+            throw new AsterixException("Unsupported file system type " + fileSystem);
+        }
+        format = configuration.get(KEY_FORMAT);
+        adapterFactory = (IGenericAdapterFactory) Class.forName(adapterFactoryClass).newInstance();
+        adapterFactory.configure(configuration, recordType);
+
+        atype = (ARecordType) recordType;
+        configureFormat();
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return adapterFactory.getPartitionConstraint();
+    }
+
+    private void configureFormat() throws AsterixException {
+        switch (format) {
+            case FORMAT_ADM:
+                parserFactory = new RateControlledTupleParserFactory(atype, configuration);
+                break;
+
+            case FORMAT_DELIMITED_TEXT:
+                String delimiterValue = (String) configuration.get(KEY_DELIMITER);
+                if (delimiterValue != null && delimiterValue.length() > 1) {
+                    throw new AsterixException("improper delimiter");
+                }
+                IValueParserFactory[] valueParserFactories = getValueParserFactories(atype);
+                parserFactory = new RateControlledTupleParserFactory(atype, valueParserFactories,
+                        delimiterValue.charAt(0), configuration);
+                break;
+        }
+    }
+
+    protected IValueParserFactory[] getValueParserFactories(ARecordType recordType) throws AsterixException {
+        int n = recordType.getFieldTypes().length;
+        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
+        for (int i = 0; i < n; i++) {
+            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
+            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
+            if (vpf == null) {
+                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
+            }
+            fieldParserFactories[i] = vpf;
+
+        }
+        return fieldParserFactories;
+    }
+
+}
+
+class RateControlledTupleParserFactory implements ITupleParserFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ARecordType recordType;
+    private final Map<String, String> configuration;
+    private IValueParserFactory[] valueParserFactories;
+    private char delimiter;
+    private final ParserType parserType;
+
+    public enum ParserType {
+        ADM,
+        DELIMITED_DATA
+    }
+
+    public RateControlledTupleParserFactory(ARecordType recordType, IValueParserFactory[] valueParserFactories,
+            char fieldDelimiter, Map<String, String> configuration) {
+        this.recordType = recordType;
+        this.valueParserFactories = valueParserFactories;
+        this.delimiter = fieldDelimiter;
+        this.configuration = configuration;
+        this.parserType = ParserType.DELIMITED_DATA;
+    }
+
+    public RateControlledTupleParserFactory(ARecordType recordType, Map<String, String> configuration) {
+        this.recordType = recordType;
+        this.configuration = configuration;
+        this.parserType = ParserType.ADM;
+    }
+
+    @Override
+    public ITupleParser createTupleParser(IHyracksTaskContext ctx) throws HyracksDataException {
+        IDataParser dataParser = null;
+        switch (parserType) {
+            case ADM:
+                dataParser = new ADMDataParser();
+                break;
+            case DELIMITED_DATA:
+                dataParser = new DelimitedDataParser(recordType, valueParserFactories, delimiter);
+                break;
+        }
+        return new RateControlledTupleParser(ctx, recordType, dataParser, configuration);
+    }
+
+}
+
+class RateControlledTupleParser extends AbstractTupleParser {
+
+    private final IDataParser dataParser;
+    private long interTupleInterval;
+    private boolean delayConfigured;
+    private boolean continueIngestion = true;
+
+    public static final String INTER_TUPLE_INTERVAL = "tuple-interval";
+
+    public RateControlledTupleParser(IHyracksTaskContext ctx, ARecordType recType, IDataParser dataParser,
+            Map<String, String> configuration) throws HyracksDataException {
+        super(ctx, recType);
+        this.dataParser = dataParser;
+        String propValue = configuration.get(INTER_TUPLE_INTERVAL);
+        if (propValue != null) {
+            interTupleInterval = Long.parseLong(propValue);
+        } else {
+            interTupleInterval = 0;
+        }
+        delayConfigured = interTupleInterval != 0;
+    }
+
+    public void setInterTupleInterval(long val) {
+        this.interTupleInterval = val;
+        this.delayConfigured = val > 0;
+    }
+
+    public void stop() {
+        continueIngestion = false;
+    }
+
+    @Override
+    public IDataParser getDataParser() {
+        return dataParser;
+    }
+
+    @Override
+    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
+
+        appender.reset(frame, true);
+        IDataParser parser = getDataParser();
+        try {
+            parser.initialize(in, recType, true);
+            while (continueIngestion) {
+                tb.reset();
+                if (!parser.parse(tb.getDataOutput())) {
+                    break;
+                }
+                tb.addFieldEndOffset();
+                if (delayConfigured) {
+                    Thread.sleep(interTupleInterval);
+                }
+                addTupleToFrame(writer);
+            }
+            if (appender.getTupleCount() > 0) {
+                FrameUtils.flushFrame(frame, writer);
+            }
+        } catch (AsterixException ae) {
+            throw new HyracksDataException(ae);
+        } catch (IOException ioe) {
+            throw new HyracksDataException(ioe);
+        } catch (InterruptedException ie) {
+            throw new HyracksDataException(ie);
+        }
+    }
 }
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapter.java
new file mode 100644
index 0000000..d26e764
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapter.java
@@ -0,0 +1,214 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.external.dataset.adapter.IPullBasedFeedClient;
+import edu.uci.ics.asterix.external.dataset.adapter.PullBasedAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.PullBasedFeedClient;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.AMutableUnorderedList;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.InitializationInfo;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.Message;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.TweetMessage;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.TweetMessageIterator;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * TPS can be configured between 1 and 20,000
+ * 
+ * @author ramang
+ */
+public class SyntheticTwitterFeedAdapter extends PullBasedAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger LOGGER = Logger.getLogger(SyntheticTwitterFeedAdapter.class.getName());
+
+    private Map<String, String> configuration;
+
+    public SyntheticTwitterFeedAdapter(Map<String, String> configuration, ARecordType outputType,
+            IHyracksTaskContext ctx) throws AsterixException {
+        super(configuration, ctx);
+        this.configuration = configuration;
+        this.adapterOutputType = outputType;
+    }
+
+    @Override
+    public IPullBasedFeedClient getFeedClient(int partition) throws Exception {
+        return new SyntheticTwitterFeedClient(configuration, adapterOutputType, partition);
+    }
+
+    private static class SyntheticTwitterFeedClient extends PullBasedFeedClient implements IPullBasedFeedClient {
+
+        private static final Logger LOGGER = Logger.getLogger(SyntheticTwitterFeedClient.class.getName());
+
+        public static final String KEY_DURATION = "duration";
+        public static final String KEY_TPS = "tps";
+        public static final String KEY_EXCEPTION_PERIOD = "exception-period";
+
+        private int duration;
+        private long tweetInterval;
+        private int numTweetsBeforeDelay;
+        private TweetMessageIterator tweetIterator = null;
+        private long exeptionInterval;
+
+        private IAObject[] mutableFields;
+        private ARecordType outputRecordType;
+        private int partition;
+        private int tweetCount = 0;
+        private int tweetCountBeforeException = 0;
+        private int exceptionPeriod = -1;
+
+        public SyntheticTwitterFeedClient(Map<String, String> configuration, ARecordType outputRecordType, int partition)
+                throws AsterixException {
+            this.outputRecordType = outputRecordType;
+            String value = (String) configuration.get(KEY_DURATION);
+            duration = value != null ? Integer.parseInt(value) : 60;
+            initializeTweetRate((String) configuration.get(KEY_TPS));
+            value = (String) configuration.get(KEY_EXCEPTION_PERIOD);
+            if (value != null) {
+                exceptionPeriod = Integer.parseInt(value);
+            }
+
+            InitializationInfo info = new InitializationInfo();
+            info.timeDurationInSecs = duration;
+            DataGenerator.initialize(info);
+            tweetIterator = new TweetMessageIterator(duration);
+            initialize();
+        }
+
+        private void initializeTweetRate(String tps) {
+            numTweetsBeforeDelay = 0;
+            if (tps == null) {
+                tweetInterval = 0;
+            } else {
+                int val = Integer.parseInt(tps);
+                double interval = new Double(((double) 1000 / val));
+                if (interval > 1) {
+                    tweetInterval = (long) interval;
+                    numTweetsBeforeDelay = 1;
+                } else {
+                    tweetInterval = 1;
+                    Double numTweets = new Double(1 / interval);
+                    if (numTweets.intValue() != numTweets) {
+                        tweetInterval = 10;
+                        numTweetsBeforeDelay = (new Double(10 * numTweets * 1.4)).intValue();
+                    } else {
+                        numTweetsBeforeDelay = new Double((numTweets * 1.4)).intValue();
+                    }
+                }
+            }
+
+        }
+
+        private void writeTweet(TweetMessage next) {
+
+            // tweet id
+            LOGGER.info("Generating next tweet");
+            ((AMutableString) mutableFields[0]).setValue(next.getTweetid());
+            mutableRecord.setValueAtPos(0, mutableFields[0]);
+
+            // user
+            AMutableRecord userRecord = ((AMutableRecord) mutableFields[1]);
+            ((AMutableString) userRecord.getValueByPos(0)).setValue(next.getUser().getScreenName());
+            ((AMutableString) userRecord.getValueByPos(1)).setValue("en");
+            ((AMutableInt32) userRecord.getValueByPos(2)).setValue(next.getUser().getFriendsCount());
+            ((AMutableInt32) userRecord.getValueByPos(3)).setValue(next.getUser().getStatusesCount());
+            ((AMutableString) userRecord.getValueByPos(4)).setValue(next.getUser().getName());
+            ((AMutableInt32) userRecord.getValueByPos(5)).setValue(next.getUser().getFollowersCount());
+            mutableRecord.setValueAtPos(1, userRecord);
+
+            // location
+            ((AMutablePoint) mutableFields[2]).setValue(next.getSenderLocation().getLatitude(), next
+                    .getSenderLocation().getLongitude());
+            mutableRecord.setValueAtPos(2, mutableFields[2]);
+
+            // time
+            ((AMutableDateTime) mutableFields[3]).setValue(next.getSendTime().getChrononTime());
+            mutableRecord.setValueAtPos(3, mutableFields[3]);
+
+            // referred topics
+            ((AMutableUnorderedList) mutableFields[4]).clear();
+            List<String> referredTopics = next.getReferredTopics();
+            for (String topic : referredTopics) {
+                ((AMutableUnorderedList) mutableFields[4]).add(new AMutableString(topic));
+            }
+            mutableRecord.setValueAtPos(4, mutableFields[4]);
+
+            // text
+            Message m = next.getMessageText();
+            char[] content = m.getMessage();
+            String tweetText = new String(content, 0, m.getLength());
+            ((AMutableString) mutableFields[5]).setValue(tweetText);
+            mutableRecord.setValueAtPos(5, mutableFields[5]);
+            LOGGER.info(tweetText);
+
+        }
+
+        @Override
+        public void resetOnFailure(Exception e) throws AsterixException {
+            // TODO Auto-generated method stub
+
+        }
+
+        @Override
+        public boolean alter(Map<String, String> configuration) {
+            // TODO Auto-generated method stub
+            return false;
+        }
+
+        @Override
+        public InflowState setNextRecord() throws Exception {
+            boolean moreData = tweetIterator.hasNext();
+            if (!moreData) {
+                return InflowState.NO_MORE_DATA;
+            }
+            writeTweet(tweetIterator.next());
+            if (tweetInterval != 0) {
+                tweetCount++;
+                if (tweetCount == numTweetsBeforeDelay) {
+                    Thread.sleep(tweetInterval);
+                    tweetCount = 0;
+                }
+            }
+            tweetCountBeforeException++;
+
+            if (tweetCountBeforeException == exceptionPeriod) {
+                tweetCountBeforeException = 0;
+                throw new AsterixException("Delibrate exception");
+            }
+            return InflowState.DATA_AVAILABLE;
+        }
+
+        private void initialize() throws AsterixException {
+            ARecordType userRecordType = (ARecordType) outputRecordType.getFieldTypes()[1];
+            IAObject[] userMutableFields = new IAObject[] { new AMutableString(""), new AMutableString(""),
+                    new AMutableInt32(0), new AMutableInt32(0), new AMutableString(""), new AMutableInt32(0) };
+            AUnorderedListType unorderedListType = new AUnorderedListType(BuiltinType.ASTRING, "referred-topics");
+            mutableFields = new IAObject[] { new AMutableString(""),
+                    new AMutableRecord(userRecordType, userMutableFields), new AMutablePoint(0, 0),
+                    new AMutableDateTime(0), new AMutableUnorderedList(unorderedListType), new AMutableString("") };
+            recordSerDe = new ARecordSerializerDeserializer(outputRecordType);
+            mutableRecord = new AMutableRecord(outputRecordType, mutableFields);
+
+        }
+
+        @Override
+        public void stop() {
+            // TODO Auto-generated method stub
+
+        }
+    }
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapterFactory.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapterFactory.java
new file mode 100644
index 0000000..408d648
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/SyntheticTwitterFeedAdapterFactory.java
@@ -0,0 +1,141 @@
+/*
+x * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.Set;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * Factory class for creating @see{RateControllerFileSystemBasedAdapter} The
+ * adapter simulates a feed from the contents of a source file. The file can be
+ * on the local file system or on HDFS. The feed ends when the content of the
+ * source file has been ingested.
+ */
+public class SyntheticTwitterFeedAdapterFactory implements ITypedAdapterFactory {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+
+    private Map<String, String> configuration;
+
+    private static final String KEY_DATAVERSE_DATASET = "dataverse-dataset";
+
+    private static final ARecordType outputType = initOutputType();
+
+    @Override
+    public String getName() {
+        return "pull_twitter_feed";
+    }
+
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.TYPED;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) throws Exception {
+        this.configuration = configuration;
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        String dvds = (String) configuration.get(KEY_DATAVERSE_DATASET);
+        String[] components = dvds.split(":");
+        String dataverse = components[0];
+        String dataset = components[1];
+        MetadataTransactionContext ctx = null;
+        NodeGroup ng = null;
+        try {
+            ctx = MetadataManager.INSTANCE.beginTransaction();
+            Dataset ds = MetadataManager.INSTANCE.getDataset(ctx, dataverse, dataset);
+            String nodegroupName = ((FeedDatasetDetails) ds.getDatasetDetails()).getNodeGroupName();
+            ng = MetadataManager.INSTANCE.getNodegroup(ctx, nodegroupName);
+            MetadataManager.INSTANCE.commitTransaction(ctx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(ctx);
+            throw e;
+        }
+        List<String> storageNodes = ng.getNodeNames();
+        Set<String> nodes = AsterixAppContextInfo.getInstance().getMetadataProperties().getNodeNames();
+        String ingestionLocation = null;
+        if (nodes.size() > storageNodes.size()) {
+            nodes.removeAll(storageNodes);
+        }
+        String[] nodesArray = nodes.toArray(new String[] {});
+        Random r = new Random();
+        ingestionLocation = nodesArray[r.nextInt(nodes.size())];
+        return new AlgebricksAbsolutePartitionConstraint(new String[] { ingestionLocation });
+    }
+
+    @Override
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        return new SyntheticTwitterFeedAdapter(configuration, outputType, ctx);
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return outputType;
+    }
+
+    private static ARecordType initOutputType() {
+        ARecordType outputType = null;
+        try {
+            String[] userFieldNames = new String[] { "screen-name", "lang", "friends_count", "statuses_count", "name",
+                    "followers_count" };
+
+            IAType[] userFieldTypes = new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.AINT32,
+                    BuiltinType.AINT32, BuiltinType.ASTRING, BuiltinType.AINT32 };
+            ARecordType userRecordType = new ARecordType("TwitterUserType", userFieldNames, userFieldTypes, false);
+
+            String[] fieldNames = new String[] { "tweetid", "user", "sender-location", "send-time", "referred-topics",
+                    "message-text" };
+
+            AUnorderedListType unorderedListType = new AUnorderedListType(BuiltinType.ASTRING, "referred-topics");
+            IAType[] fieldTypes = new IAType[] { BuiltinType.ASTRING, userRecordType, BuiltinType.APOINT,
+                    BuiltinType.ADATETIME, unorderedListType, BuiltinType.ASTRING };
+            outputType = new ARecordType("TweetMessageType", fieldNames, fieldTypes, false);
+
+        } catch (AsterixException e) {
+            throw new IllegalStateException("Unable to initialize output type");
+        }
+        return outputType;
+    }
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TweetGenerator.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TweetGenerator.java
new file mode 100644
index 0000000..9d47de2
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TweetGenerator.java
@@ -0,0 +1,213 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.external.dataset.adapter.IPullBasedFeedClient;
+import edu.uci.ics.asterix.external.dataset.adapter.PullBasedFeedClient;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.AMutableUnorderedList;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.InitializationInfo;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.Message;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.TweetMessage;
+import edu.uci.ics.asterix.tools.external.data.DataGenerator.TweetMessageIterator;
+
+public class TweetGenerator extends PullBasedFeedClient implements IPullBasedFeedClient {
+
+    private static final Logger LOGGER = Logger.getLogger(TweetGenerator.class.getName());
+
+    public static final String KEY_DURATION = "duration";
+    public static final String KEY_TPS = "tps";
+    public static final String KEY_EXCEPTION_PERIOD = "exception-period";
+    public static final String OUTPUT_FORMAT = "output-format";
+
+    public static final String OUTPUT_FORMAT_ARECORD = "arecord";
+    public static final String OUTPUT_FORMAT_ADM_STRING = "adm-string";
+
+    private int duration;
+    private long tweetInterval;
+    private int numTweetsBeforeDelay;
+    private TweetMessageIterator tweetIterator = null;
+    private long exeptionInterval;
+
+    private IAObject[] mutableFields;
+    private ARecordType outputRecordType;
+    private int partition;
+    private int tweetCount = 0;
+    private int tweetCountBeforeException = 0;
+    private int exceptionPeriod = -1;
+    private boolean isOutputFormatRecord = false;
+    private byte[] EOL = "\n".getBytes();
+    private OutputStream os;
+
+    public TweetGenerator(Map<String, String> configuration, ARecordType outputRecordType, int partition, String format)
+            throws AsterixException {
+        this.outputRecordType = outputRecordType;
+        String value = configuration.get(KEY_DURATION);
+        duration = value != null ? Integer.parseInt(value) : 60;
+        initializeTweetRate(configuration.get(KEY_TPS));
+        value = configuration.get(KEY_EXCEPTION_PERIOD);
+        if (value != null) {
+            exceptionPeriod = Integer.parseInt(value);
+        }
+        isOutputFormatRecord = format.equalsIgnoreCase(OUTPUT_FORMAT_ARECORD);
+        InitializationInfo info = new InitializationInfo();
+        info.timeDurationInSecs = duration;
+        DataGenerator.initialize(info);
+        tweetIterator = new TweetMessageIterator(duration);
+        initialize();
+    }
+
+    private void initializeTweetRate(String tps) {
+        numTweetsBeforeDelay = 0;
+        if (tps == null) {
+            tweetInterval = 0;
+        } else {
+            int val = Integer.parseInt(tps);
+            double interval = new Double(((double) 1000 / val));
+            if (interval > 1) {
+                tweetInterval = (long) interval;
+                numTweetsBeforeDelay = 1;
+            } else {
+                tweetInterval = 1;
+                Double numTweets = new Double(1 / interval);
+                if (numTweets.intValue() != numTweets) {
+                    tweetInterval = 10;
+                    numTweetsBeforeDelay = (new Double(10 * numTweets * 1.4)).intValue();
+                } else {
+                    numTweetsBeforeDelay = new Double((numTweets * 1.4)).intValue();
+                }
+            }
+        }
+
+    }
+
+    private void writeTweetString(TweetMessage next) throws IOException {
+        String tweet = next.toString();
+        os.write(tweet.getBytes());
+        os.write(EOL);
+        /*
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(tweet);
+        }*/
+    }
+
+    private void writeTweetRecord(TweetMessage next) {
+
+        //tweet id
+        ((AMutableString) mutableFields[0]).setValue(next.getTweetid());
+        mutableRecord.setValueAtPos(0, mutableFields[0]);
+
+        // user 
+        AMutableRecord userRecord = ((AMutableRecord) mutableFields[1]);
+        ((AMutableString) userRecord.getValueByPos(0)).setValue(next.getUser().getScreenName());
+        ((AMutableString) userRecord.getValueByPos(1)).setValue("en");
+        ((AMutableInt32) userRecord.getValueByPos(2)).setValue(next.getUser().getFriendsCount());
+        ((AMutableInt32) userRecord.getValueByPos(3)).setValue(next.getUser().getStatusesCount());
+        ((AMutableString) userRecord.getValueByPos(4)).setValue(next.getUser().getName());
+        ((AMutableInt32) userRecord.getValueByPos(5)).setValue(next.getUser().getFollowersCount());
+        mutableRecord.setValueAtPos(1, userRecord);
+
+        // location
+        ((AMutablePoint) mutableFields[2]).setValue(next.getSenderLocation().getLatitude(), next.getSenderLocation()
+                .getLongitude());
+        mutableRecord.setValueAtPos(2, mutableFields[2]);
+
+        // time
+        ((AMutableDateTime) mutableFields[3]).setValue(next.getSendTime().getChrononTime());
+        mutableRecord.setValueAtPos(3, mutableFields[3]);
+
+        // referred topics
+        ((AMutableUnorderedList) mutableFields[4]).clear();
+        List<String> referredTopics = next.getReferredTopics();
+        for (String topic : referredTopics) {
+            ((AMutableUnorderedList) mutableFields[4]).add(new AMutableString(topic));
+        }
+        mutableRecord.setValueAtPos(4, mutableFields[4]);
+
+        // text
+        Message m = next.getMessageText();
+        char[] content = m.getMessage();
+        String tweetText = new String(content, 0, m.getLength());
+        ((AMutableString) mutableFields[5]).setValue(tweetText);
+        mutableRecord.setValueAtPos(5, mutableFields[5]);
+        LOGGER.info(tweetText);
+
+    }
+
+    @Override
+    public void resetOnFailure(Exception e) throws AsterixException {
+        // TODO Auto-generated method stub
+
+    }
+
+    @Override
+    public boolean alter(Map<String, String> configuration) {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public InflowState setNextRecord() throws Exception {
+        boolean moreData = tweetIterator.hasNext();
+        if (!moreData) {
+            return InflowState.NO_MORE_DATA;
+        }
+        TweetMessage msg = tweetIterator.next();
+        if (isOutputFormatRecord) {
+            writeTweetRecord(msg);
+        } else {
+            writeTweetString(msg);
+        }
+        if (tweetInterval != 0) {
+            tweetCount++;
+            if (tweetCount == numTweetsBeforeDelay) {
+                Thread.sleep(tweetInterval);
+                tweetCount = 0;
+            }
+        }
+        tweetCountBeforeException++;
+
+        if (tweetCountBeforeException == exceptionPeriod) {
+            tweetCountBeforeException = 0;
+            throw new AsterixException("Delibrate exception");
+        }
+        return InflowState.DATA_AVAILABLE;
+    }
+
+    private void initialize() throws AsterixException {
+        ARecordType userRecordType = (ARecordType) outputRecordType.getFieldTypes()[1];
+        IAObject[] userMutableFields = new IAObject[] { new AMutableString(""), new AMutableString(""),
+                new AMutableInt32(0), new AMutableInt32(0), new AMutableString(""), new AMutableInt32(0) };
+        AUnorderedListType unorderedListType = new AUnorderedListType(BuiltinType.ASTRING, "referred-topics");
+        mutableFields = new IAObject[] { new AMutableString(""), new AMutableRecord(userRecordType, userMutableFields),
+                new AMutablePoint(0, 0), new AMutableDateTime(0), new AMutableUnorderedList(unorderedListType),
+                new AMutableString("") };
+        recordSerDe = new ARecordSerializerDeserializer(outputRecordType);
+        mutableRecord = new AMutableRecord(outputRecordType, mutableFields);
+
+    }
+
+    @Override
+    public void stop() {
+        // TODO Auto-generated method stub
+
+    }
+
+    public void setOutputStream(OutputStream os) {
+        this.os = os;
+    }
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapter.java
new file mode 100644
index 0000000..a0d13ed
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapter.java
@@ -0,0 +1,182 @@
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.dataset.adapter.IPullBasedFeedClient.InflowState;
+import edu.uci.ics.asterix.external.dataset.adapter.StreamBasedAdapter;
+import edu.uci.ics.asterix.metadata.feeds.IFeedAdapter;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+/**
+ * TPS can be configured between 1 and 20,000
+ * 
+ * @author ramang
+ */
+public class TwitterFirehoseFeedAdapter extends StreamBasedAdapter implements IFeedAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger LOGGER = Logger.getLogger(TwitterFirehoseFeedAdapter.class.getName());
+
+    private Map<String, String> configuration;
+
+    private TweetGenerator twitterFeedClient;
+
+    private final TwitterServer twitterServer;
+
+    private TwitterClient twitterClient;
+
+    private static final String LOCALHOST = "127.0.0.1";
+    private static final int PORT = 2909;
+
+    public static final String SIMULATE_UNREACHABLE_SERVER = "simulate-unreachable-server";
+
+    public TwitterFirehoseFeedAdapter(Map<String, String> configuration, ITupleParserFactory parserFactory,
+            ARecordType outputtype, IHyracksTaskContext ctx) throws AsterixException, IOException {
+        super(parserFactory, outputtype, ctx);
+        this.configuration = configuration;
+        this.twitterFeedClient = new TweetGenerator(configuration, outputtype, 0,
+                TweetGenerator.OUTPUT_FORMAT_ADM_STRING);
+        this.twitterServer = new TwitterServer(configuration, outputtype);
+        this.twitterClient = new TwitterClient(twitterServer.getPort());
+    }
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        twitterServer.start();
+        twitterClient.start();
+        super.start(partition, writer);
+    }
+
+    @Override
+    public InputStream getInputStream(int partition) throws IOException {
+        return twitterClient.getInputStream();
+    }
+
+    private static class TwitterServer {
+        private ServerSocket serverSocket;
+        private final Listener listener;
+        private int port = -1;
+
+        public TwitterServer(Map<String, String> configuration, ARecordType outputtype) throws IOException,
+                AsterixException {
+            int numAttempts = 0;
+            while (port < 0) {
+                try {
+                    serverSocket = new ServerSocket(PORT + numAttempts);
+                    port = PORT + numAttempts;
+                } catch (Exception e) {
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("port: " + (PORT + numAttempts) + " unusable ");
+                    }
+                    numAttempts++;
+                }
+            }
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("Twitter server configured to use port: " + port);
+            }
+            listener = new Listener(serverSocket, configuration, outputtype);
+        }
+
+        public void start() {
+            Thread t = new Thread(listener);
+            t.start();
+        }
+
+        public void stop() {
+            listener.stop();
+        }
+
+        public int getPort() {
+            return port;
+        }
+
+    }
+
+    private static class TwitterClient {
+
+        private Socket socket;
+        private int port;
+
+        public TwitterClient(int port) throws UnknownHostException, IOException {
+            this.port = port;
+        }
+
+        public InputStream getInputStream() throws IOException {
+            return socket.getInputStream();
+        }
+
+        public void start() throws UnknownHostException, IOException {
+            socket = new Socket(LOCALHOST, port);
+        }
+    }
+
+    private static class Listener implements Runnable {
+
+        private final ServerSocket serverSocket;
+        private Socket socket;
+        private TweetGenerator tweetGenerator;
+        private boolean continuePush = true;
+
+        public Listener(ServerSocket serverSocket, Map<String, String> configuration, ARecordType outputtype)
+                throws IOException, AsterixException {
+            this.serverSocket = serverSocket;
+            this.tweetGenerator = new TweetGenerator(configuration, outputtype, 0,
+                    TweetGenerator.OUTPUT_FORMAT_ADM_STRING);
+        }
+
+        @Override
+        public void run() {
+            while (true) {
+                InflowState state = InflowState.DATA_AVAILABLE;
+                try {
+                    socket = serverSocket.accept();
+                    OutputStream os = socket.getOutputStream();
+                    tweetGenerator.setOutputStream(os);
+                    while (state.equals(InflowState.DATA_AVAILABLE) && continuePush) {
+                        state = tweetGenerator.setNextRecord();
+                    }
+                    os.close();
+                    break;
+                } catch (Exception e) {
+
+                } finally {
+                    try {
+                        socket.close();
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+
+                }
+            }
+        }
+
+        public void stop() {
+            continuePush = false;
+        }
+
+    }
+
+    @Override
+    public void stop() throws Exception {
+        twitterServer.stop();
+    }
+
+    @Override
+    public void alter(Map<String, String> properties) {
+        // TODO Auto-generated method stub
+
+    }
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapterFactory.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapterFactory.java
new file mode 100644
index 0000000..ca16dd3
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/TwitterFirehoseFeedAdapterFactory.java
@@ -0,0 +1,160 @@
+/*
+x * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.Set;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.adapter.factory.StreamBasedAdapterFactory;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
+import edu.uci.ics.asterix.metadata.feeds.ITypedAdapterFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * Factory class for creating @see{RateControllerFileSystemBasedAdapter} The
+ * adapter simulates a feed from the contents of a source file. The file can be
+ * on the local file system or on HDFS. The feed ends when the content of the
+ * source file has been ingested.
+ */
+public class TwitterFirehoseFeedAdapterFactory extends StreamBasedAdapterFactory implements ITypedAdapterFactory {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+
+    private static final String KEY_DATAVERSE_DATASET = "dataverse-dataset";
+    private static final String KEY_INGESTION_CARDINALITY = "ingestion-cardinality";
+
+    private static final ARecordType outputType = initOutputType();
+
+    @Override
+    public String getName() {
+        return "twitter_firehose";
+    }
+
+    @Override
+    public AdapterType getAdapterType() {
+        return AdapterType.TYPED;
+    }
+
+    @Override
+    public SupportedOperation getSupportedOperations() {
+        return SupportedOperation.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) throws Exception {
+        this.configuration = configuration;
+        configuration.put(KEY_FORMAT, FORMAT_ADM);
+        this.configureFormat(initOutputType());
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        String dvds = (String) configuration.get(KEY_DATAVERSE_DATASET);
+        String[] components = dvds.split(":");
+        String dataverse = components[0];
+        String dataset = components[1];
+        MetadataTransactionContext ctx = null;
+        NodeGroup ng = null;
+        try {
+            ctx = MetadataManager.INSTANCE.beginTransaction();
+            Dataset ds = MetadataManager.INSTANCE.getDataset(ctx, dataverse, dataset);
+            String nodegroupName = ((FeedDatasetDetails) ds.getDatasetDetails()).getNodeGroupName();
+            ng = MetadataManager.INSTANCE.getNodegroup(ctx, nodegroupName);
+            MetadataManager.INSTANCE.commitTransaction(ctx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(ctx);
+            throw e;
+        }
+        List<String> storageNodes = ng.getNodeNames();
+        Set<String> nodes = AsterixAppContextInfo.getInstance().getMetadataProperties().getNodeNames();
+        if (nodes.size() > storageNodes.size()) {
+            nodes.removeAll(storageNodes);
+        }
+
+        String iCardinalityParam = (String) configuration.get(KEY_INGESTION_CARDINALITY);
+        int iCardinality = iCardinalityParam != null ? Integer.parseInt(iCardinalityParam) : 1;
+        String[] ingestionLocations = new String[iCardinality];
+        String[] nodesArray = nodes.toArray(new String[] {});
+        if (iCardinality > nodes.size()) {
+            for (int i = 0; i < nodesArray.length; i++) {
+                ingestionLocations[i] = nodesArray[i];
+            }
+
+            for (int j = nodesArray.length, k = 0; j < iCardinality; j++, k++) {
+                ingestionLocations[j] = storageNodes.get(k);
+            }
+        } else {
+            Random r = new Random();
+            int ingestLocIndex = r.nextInt(nodes.size());
+            ingestionLocations[0] = nodesArray[ingestLocIndex];
+            for (int i = 1; i < iCardinality; i++) {
+                ingestionLocations[i] = nodesArray[(ingestLocIndex + i) % nodesArray.length];
+            }
+        }
+        return new AlgebricksAbsolutePartitionConstraint(ingestionLocations);
+    }
+
+    @Override
+    public IDatasourceAdapter createAdapter(IHyracksTaskContext ctx) throws Exception {
+        return new TwitterFirehoseFeedAdapter(configuration, parserFactory, outputType, ctx);
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return outputType;
+    }
+
+    private static ARecordType initOutputType() {
+        ARecordType outputType = null;
+        try {
+            String[] userFieldNames = new String[] { "screen-name", "lang", "friends_count", "statuses_count", "name",
+                    "followers_count" };
+
+            IAType[] userFieldTypes = new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.AINT32,
+                    BuiltinType.AINT32, BuiltinType.ASTRING, BuiltinType.AINT32 };
+            ARecordType userRecordType = new ARecordType("TwitterUserType", userFieldNames, userFieldTypes, false);
+
+            String[] fieldNames = new String[] { "tweetid", "user", "sender-location", "send-time", "referred-topics",
+                    "message-text" };
+
+            AUnorderedListType unorderedListType = new AUnorderedListType(BuiltinType.ASTRING, "referred-topics");
+            IAType[] fieldTypes = new IAType[] { BuiltinType.ASTRING, userRecordType, BuiltinType.APOINT,
+                    BuiltinType.ADATETIME, unorderedListType, BuiltinType.ASTRING };
+            outputType = new ARecordType("TweetMessageType", fieldNames, fieldTypes, false);
+
+        } catch (AsterixException e) {
+            throw new IllegalStateException("Unable to initialize output type");
+        }
+        return outputType;
+    }
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/resources/test.properties b/asterix-tools/src/main/resources/test.properties
old mode 100755
new mode 100644
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
index a18b3d3..b09cd52 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
@@ -32,9 +32,9 @@
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
 import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.lifecycle.ILifeCycleComponent;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
index 9c9439c..755e85b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
@@ -24,6 +24,7 @@
 import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
index 645b613..5e380ff 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
@@ -24,6 +24,7 @@
 import edu.uci.ics.asterix.common.transactions.ILogCursor;
 import edu.uci.ics.asterix.common.transactions.ILogFilter;
 import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 
@@ -120,7 +121,8 @@
                 // indicates an absence of logs any further.
             }
 
-            if (logicalLogLocator.getLsn() > logManager.getLastFlushedLsn().get()) {
+            //if (logicalLogLocator.getLsn() > logManager.getLastFlushedLsn().get()) {
+            if (logManager.isMemoryRead(logicalLogLocator.getLsn())) {
                 return next(currentLogLocator); //should read from memory if there is any further log
             }
         }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
index d4eb8a4..b8d5312 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
@@ -16,7 +16,6 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
@@ -25,7 +24,6 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Properties;
 import java.util.Set;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.atomic.AtomicInteger;
@@ -45,10 +43,10 @@
 import edu.uci.ics.asterix.common.transactions.ILogger;
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.lifecycle.ILifeCycleComponent;
@@ -593,7 +591,7 @@
 
     public boolean isMemoryRead(long currentLSN) {
         long flushLSN = lastFlushedLSN.get();
-        if ((flushLSN + 1) % logPageSize == 0) {
+        if ((flushLSN + 1) == currentLSN) {
             return false;
         }
         long logPageBeginOffset = flushLSN - (flushLSN % logPageSize);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java
deleted file mode 100644
index 035a319..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.transaction.management.service.logging;
-
-import java.io.File;
-import java.io.FilenameFilter;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.common.exceptions.ACIDException;
-import edu.uci.ics.asterix.common.transactions.FileUtil;
-import edu.uci.ics.asterix.common.transactions.ILogManager;
-import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
-import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
-import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
-
-
-/**
- * A utility class providing helper methods for the {@link ILogManager}
- */
-public class LogUtil {
-
-    private static final Logger LOGGER = Logger.getLogger(LogUtil.class.getName());
-
-    // read the log directory and initialize log anchor to point to the
-    // current log partition file and the offset where the log manager shall
-    // continue to insert log records.
-
-    public static PhysicalLogLocator initializeLogAnchor(ILogManager logManager) throws ACIDException {
-        int fileId = 0;
-        long offset = 0;
-        LogManagerProperties logManagerProperties = logManager.getLogManagerProperties();
-        File logDir = new File(logManagerProperties.getLogDir());
-        try {
-            if (logDir.exists()) {
-                List<String> logFiles = getLogFiles(logManagerProperties);
-                if (logFiles == null || logFiles.size() == 0) {
-                    FileUtil.createFileIfNotExists(getLogFilePath(logManagerProperties, 0));
-                    if (LOGGER.isLoggable(Level.INFO)) {
-                        LOGGER.info("created a log file: " + getLogFilePath(logManagerProperties, 0));
-                    }
-                } else {
-                    File logFile = new File(LogUtil.getLogFilePath(logManagerProperties,
-                            Long.parseLong(logFiles.get(logFiles.size() - 1))));
-                    fileId = logFiles.size() - 1;
-                    offset = logFile.length();
-                }
-            } else {
-                FileUtil.createNewDirectory(logManagerProperties.getLogDir());
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("created the log directory: " + logManagerProperties.getLogDir());
-                }
-                FileUtil.createFileIfNotExists(getLogFilePath(logManagerProperties, 0));
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("created a log file: " + getLogFilePath(logManagerProperties, 0));
-                }
-            }
-        } catch (IOException ioe) {
-            throw new ACIDException("Unable to initialize log anchor", ioe);
-        }
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info(" file id :" + fileId + " offset " + offset);
-        }
-        return new PhysicalLogLocator(fileId, offset, logManager);
-    }
-
-    public static List<String> getLogFiles(final LogManagerProperties logManagerProperties) {
-        File logDir = new File(logManagerProperties.getLogDir());
-        String[] logFiles = new String[0];
-        List<String> logFileCollection = new ArrayList<String>();
-        if (logDir.exists()) {
-            logFiles = logDir.list(new FilenameFilter() {
-                public boolean accept(File dir, String name) {
-                    if (name.startsWith(logManagerProperties.getLogFilePrefix())) {
-                        return true;
-                    }
-                    return false;
-                }
-            });
-        }
-        for (String logFile : logFiles) {
-            logFileCollection.add(logFile.substring(logManagerProperties.getLogFilePrefix().length() + 1));
-        }
-        Collections.sort(logFileCollection, new Comparator<String>() {
-            @Override
-            public int compare(String arg0, String arg1) {
-                return Integer.parseInt(arg0) - Integer.parseInt(arg1);
-            }
-        });
-        return logFileCollection;
-    }
-
-    public static long getFileId(String logFilePath, LogManagerProperties logManagerProperties) {
-        String logFileName = logFilePath;
-        if (logFilePath.contains(File.separator)) {
-            logFileName = logFilePath.substring(logFilePath.lastIndexOf(File.separator));
-        }
-        return Long.parseLong(logFileName.substring(logFileName.indexOf(logManagerProperties.getLogFilePrefix())));
-    }
-
-    public static String getLogFilePath(LogManagerProperties logManagerProperties, long fileId) {
-        return logManagerProperties.getLogDir() + File.separator + logManagerProperties.getLogFilePrefix() + "_"
-                + fileId;
-    }
-
-    public static LogicalLogLocator getDummyLogicalLogLocator(ILogManager logManager) {
-        LogicalLogLocator logicalLogLocator = new LogicalLogLocator(-1, null, -1, logManager);
-        return logicalLogLocator;
-    }
-
-    /*
-     * given a lsn, get the offset within the log file where the corresponding
-     * log record is (to be) placed.
-     */
-    public static long getFileOffset(ILogManager logManager, long lsn) {
-        return lsn % logManager.getLogManagerProperties().getLogPartitionSize();
-    }
-
-    /*
-     * given a lsn, get the file id that contains the log record.
-     */
-    public static long getFileId(ILogManager logManager, long lsn) {
-        return lsn / logManager.getLogManagerProperties().getLogPartitionSize();
-    }
-}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
index 5b946bc..ad1db1f 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
@@ -49,12 +49,12 @@
 import edu.uci.ics.asterix.common.transactions.IResourceManager;
 import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexResourceManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManager;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
index 06a5fbf..33522e3 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
@@ -26,8 +26,8 @@
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
 import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
index 1298791..a74b079 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
@@ -28,11 +28,11 @@
 import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
 import edu.uci.ics.asterix.common.transactions.IResourceManager;
 import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.logging.BasicLogger;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
index 9aed571..8e13356 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
@@ -22,10 +22,10 @@
 import edu.uci.ics.asterix.common.transactions.ILogFilter;
 import edu.uci.ics.asterix.common.transactions.ILogManager;
 import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class LogRecordReader {
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
index b683a93..4bebbc4 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
@@ -31,10 +31,10 @@
 import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.common.transactions.ITransactionManager;
 import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogUtil;
 import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;