diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java
deleted file mode 100644
index cad8760..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.om.base.ABinary;
-import edu.uci.ics.asterix.om.base.ABitArray;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ACircle;
-import edu.uci.ics.asterix.om.base.ADate;
-import edu.uci.ics.asterix.om.base.ADateTime;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.ADuration;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.ALine;
-import edu.uci.ics.asterix.om.base.APoint;
-import edu.uci.ics.asterix.om.base.APoint3D;
-import edu.uci.ics.asterix.om.base.APolygon;
-import edu.uci.ics.asterix.om.base.ARecord;
-import edu.uci.ics.asterix.om.base.ARectangle;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.base.ATime;
-import edu.uci.ics.asterix.om.base.IACollection;
-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.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * This class is the implementation of IADMCursor. This class supports iterating
- * over all objects in ASTERIX. All ASTERIX objects can be iterated over and
- * returned via the associated get<Type>() call.
- * 
- * @author zheilbron
- */
-public class ADMCursor implements IADMCursor {
-    protected IAObject currentObject;
-    protected IACursor collectionCursor;
-    private boolean readOnce;
-
-    public ADMCursor(IAObject currentObject) {
-        setCurrentObject(currentObject);
-    }
-
-    public boolean next() throws AQLJException {
-        if (collectionCursor != null) {
-            boolean next = collectionCursor.next();
-            if (next) {
-                currentObject = collectionCursor.get();
-            }
-            return next;
-        } else if (currentObject == null) {
-            return false;
-        } else {
-            if (!readOnce) {
-                readOnce = true;
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public void position(IADMCursor c) throws AQLJException {
-        ((ADMCursor) c).setCurrentObject(currentObject);
-    }
-
-    @Override
-    public void position(IADMCursor c, String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        ((ADMCursor) c).setCurrentObject(o);
-    }
-
-    private IAObject getObjectByField(String field) throws AQLJException {
-        ATypeTag tag = currentObject.getType().getTypeTag();
-        if (tag != ATypeTag.RECORD) {
-            throw new AQLJException("object of type " + tag + " has no fields");
-        }
-        ARecord curRecord = (ARecord) currentObject;
-        ARecordType t = curRecord.getType();
-        int idx = t.findFieldPosition(field);
-        if (idx == -1) {
-            return null;
-        }
-        IAObject o = curRecord.getValueByPos(idx);
-        return o;
-    }
-
-    public void setCurrentObject(IAObject o) {
-        readOnce = false;
-        currentObject = o;
-        if (currentObject != null) {
-            if (currentObject.getType() instanceof AbstractCollectionType) {
-                collectionCursor = ((IACollection) currentObject).getCursor();
-            }
-        }
-    }
-
-    private void checkTypeTag(IAObject o, ATypeTag expectedTag) throws AQLJException {
-        ATypeTag actualTag;
-        actualTag = o.getType().getTypeTag();
-
-        if (actualTag != expectedTag) {
-            throw new AQLJException("cannot get " + expectedTag + " when type is " + actualTag);
-        }
-    }
-
-    @Override
-    public ABinary getBinary() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BINARY);
-        return ((ABinary) currentObject);
-    }
-
-    @Override
-    public ABinary getBinary(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BINARY);
-        return (ABinary) o;
-    }
-
-    @Override
-    public ABitArray getBitArray() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BITARRAY);
-        return ((ABitArray) currentObject);
-    }
-
-    @Override
-    public ABitArray getBitArray(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BITARRAY);
-        return (ABitArray) o;
-    }
-
-    @Override
-    public ABoolean getBoolean() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BOOLEAN);
-        return ((ABoolean) currentObject);
-    }
-
-    @Override
-    public ABoolean getBoolean(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BOOLEAN);
-        return (ABoolean) o;
-    }
-
-    @Override
-    public ACircle getCircle() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.CIRCLE);
-        return ((ACircle) currentObject);
-    }
-
-    @Override
-    public ACircle getCircle(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.CIRCLE);
-        return (ACircle) o;
-    }
-
-    @Override
-    public ADate getDate() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DATE);
-        return ((ADate) currentObject);
-    }
-
-    @Override
-    public ADate getDate(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DATE);
-        return (ADate) o;
-    }
-
-    @Override
-    public ADateTime getDateTime() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DATETIME);
-        return ((ADateTime) currentObject);
-    }
-
-    @Override
-    public ADateTime getDateTime(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DATETIME);
-        return (ADateTime) o;
-    }
-
-    @Override
-    public ADouble getDouble() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DOUBLE);
-        return ((ADouble) currentObject);
-    }
-
-    @Override
-    public ADouble getDouble(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DOUBLE);
-        return (ADouble) o;
-    }
-
-    @Override
-    public ADuration getDuration() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DURATION);
-        return ((ADuration) currentObject);
-    }
-
-    @Override
-    public ADuration getDuration(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DURATION);
-        return (ADuration) o;
-    }
-
-    @Override
-    public AFloat getFloat() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.FLOAT);
-        return ((AFloat) currentObject);
-    }
-
-    @Override
-    public AFloat getFloat(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.FLOAT);
-        return (AFloat) o;
-    }
-
-    @Override
-    public AInt8 getInt8() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT8);
-        return ((AInt8) currentObject);
-    }
-
-    @Override
-    public AInt8 getInt8(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT8);
-        return (AInt8) o;
-    }
-
-    @Override
-    public AInt16 getInt16() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT16);
-        return ((AInt16) currentObject);
-    }
-
-    @Override
-    public AInt16 getInt16(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT16);
-        return (AInt16) o;
-    }
-
-    @Override
-    public AInt32 getInt32() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT32);
-        return ((AInt32) currentObject);
-    }
-
-    @Override
-    public AInt32 getInt32(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT32);
-        return (AInt32) o;
-    }
-
-    @Override
-    public AInt64 getInt64() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT64);
-        return ((AInt64) currentObject);
-    }
-
-    @Override
-    public AInt64 getInt64(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT64);
-        return (AInt64) o;
-    }
-
-    @Override
-    public ALine getLine() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.LINE);
-        return ((ALine) currentObject);
-    }
-
-    @Override
-    public ALine getLine(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.LINE);
-        return (ALine) o;
-    }
-
-    @Override
-    public APoint getPoint() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POINT);
-        return ((APoint) currentObject);
-    }
-
-    @Override
-    public APoint getPoint(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POINT);
-        return (APoint) o;
-    }
-
-    @Override
-    public APoint3D getPoint3D() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POINT3D);
-        return ((APoint3D) currentObject);
-    }
-
-    @Override
-    public APoint3D getPoint3D(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POINT3D);
-        return (APoint3D) o;
-    }
-
-    @Override
-    public APolygon getPolygon() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POLYGON);
-        return ((APolygon) currentObject);
-    }
-
-    @Override
-    public APolygon getPolygon(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POLYGON);
-        return (APolygon) o;
-    }
-
-    @Override
-    public ARectangle getRectangle() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.RECTANGLE);
-        return ((ARectangle) currentObject);
-    }
-
-    @Override
-    public ARectangle getRectangle(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.RECTANGLE);
-        return (ARectangle) o;
-    }
-
-    @Override
-    public AString getString() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.STRING);
-        return ((AString) currentObject);
-    }
-
-    @Override
-    public AString getString(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.STRING);
-        return (AString) o;
-    }
-
-    @Override
-    public ATime getTime() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.TIME);
-        return ((ATime) currentObject);
-    }
-
-    @Override
-    public ATime getTime(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.TIME);
-        return (ATime) o;
-    }
-
-    public IAType getType() {
-        if (currentObject != null) {
-            return currentObject.getType();
-        }
-        return null;
-    }
-
-    @Override
-    public IAObject get() {
-        return currentObject;
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java
deleted file mode 100644
index a1a077b..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * This class encapsulates the mechanism for creating a connection to an ASTERIX
- * server.
- * 
- * @author zheilbron
- */
-public class AQLJClientDriver {
-    /**
-     * Get a connection to the ASTERIX server.
-     * 
-     * @param host
-     *            the ip or hostname of the ASTERIX server
-     * @param port
-     *            the port of the ASTERIX server (default: 14600)
-     * @param dataverse
-     *            the name of the dataverse to use for any AQL statements
-     * @return an IAQLJConnection object representing the connection to ASTERIX
-     * @throws AQLJException
-     */
-    public static IAQLJConnection getConnection(String host, int port, String dataverse) throws AQLJException {
-        return new AQLJConnection(host, port, dataverse);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java
deleted file mode 100644
index c597450..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-
-/**
- * This class is the implementation of IAQLJConnection and is the means for
- * communication between a client and an ASTERIX server. The messages passed
- * through this connection conform to the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public class AQLJConnection implements IAQLJConnection {
-    private final String dataverse;
-    private final AQLJStream aqljStream;
-
-    public AQLJConnection(String host, int port, String dataverse) throws AQLJException {
-        this.dataverse = dataverse;
-
-        try {
-            aqljStream = new AQLJStream(host, port);
-        } catch (IOException e) {
-            throw new AQLJException("Could not connect to " + host + ":" + port);
-        }
-
-        startup();
-    }
-
-    private void startup() throws AQLJException {
-        sendStartupMessage(dataverse);
-        getStartupResponse();
-    }
-
-    private void sendStartupMessage(String dataverse) throws AQLJException {
-        try {
-            byte[] dvBytes = dataverse.getBytes("UTF-8");
-            // 4 for the message length, 1 for the message type, 2 for the
-            // string length
-            aqljStream.sendUnsignedInt32(4 + 1 + 2 + dvBytes.length);
-            aqljStream.sendChar(AQLJProtocol.STARTUP_MESSAGE);
-            aqljStream.sendInt16(dvBytes.length);
-            aqljStream.send(dvBytes);
-            aqljStream.flush();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    private void getStartupResponse() throws AQLJException {
-        try {
-            aqljStream.receiveUnsignedInt32();
-            int messageType = aqljStream.receiveChar();
-            switch (messageType) {
-                case AQLJProtocol.READY_MESSAGE:
-                    break;
-                case AQLJProtocol.ERROR_MESSAGE:
-                    String err = aqljStream.receiveString();
-                    throw new AQLJException(err);
-                default:
-                    throw new AQLJException("Error: unable to parse message from server");
-            }
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    @Override
-    public IAQLJResult execute(String stmt) throws AQLJException {
-        sendExecute(stmt);
-        return fetchResults();
-    }
-
-    private AQLJResult fetchResults() throws AQLJException {
-        long len;
-        int messageType;
-
-        ResultBuffer rb = null;
-        while (true) {
-            try {
-                len = aqljStream.receiveUnsignedInt32();
-                messageType = aqljStream.receiveChar();
-                switch (messageType) {
-                    case AQLJProtocol.DATA_MESSAGE:
-                        // DataRecord
-                        if (rb == null) {
-                            rb = new ResultBuffer();
-                        }
-                        rb.appendMessage(aqljStream, (int) (len - 5));
-                        break;
-                    case AQLJProtocol.EXECUTE_COMPLETE_MESSAGE:
-                        // ExecuteComplete
-                        return new AQLJResult(rb);
-                    case AQLJProtocol.ERROR_MESSAGE:
-                        // Error
-                        throw new AQLJException(aqljStream.receiveString());
-                    default:
-                        throw new AQLJException("Error: received unknown message type from server");
-                }
-            } catch (IOException e) {
-                throw new AQLJException(e);
-            }
-        }
-
-    }
-
-    private void sendExecute(String stmt) throws AQLJException {
-        try {
-            byte[] stmtBytes = stmt.getBytes("UTF-8");
-            // 4 for the message length, 1 for the message type, 2 for the
-            // string length
-            aqljStream.sendUnsignedInt32(4 + 1 + 2 + stmtBytes.length);
-            aqljStream.sendChar(AQLJProtocol.EXECUTE_MESSAGE);
-            aqljStream.sendInt16(stmtBytes.length);
-            aqljStream.send(stmtBytes);
-            aqljStream.flush();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        aqljStream.close();
-    }
-
-    @Override
-    public IADMCursor createADMCursor() {
-        return new ADMCursor(null);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java
deleted file mode 100644
index 63114ce..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * This class is special type of ADMCursor in that it has a result buffer
- * associated with it. It can be thought of as the "base" cursor for some ADM
- * results.
- * 
- * @author zheilbron
- */
-public class AQLJResult extends ADMCursor implements IAQLJResult {
-    private final ResultBuffer resultBuffer;
-
-    public AQLJResult(ResultBuffer buffer) {
-        super(null);
-        this.resultBuffer = buffer;
-    }
-
-    @Override
-    public boolean next() throws AQLJException {
-        currentObject = resultBuffer.get();
-        if (currentObject == null) {
-            return false;
-        }
-        return true;
-    }
-
-    public void close() throws IOException {
-        resultBuffer.close();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java
deleted file mode 100644
index a7500c9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.om.base.ABinary;
-import edu.uci.ics.asterix.om.base.ABitArray;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ACircle;
-import edu.uci.ics.asterix.om.base.ADate;
-import edu.uci.ics.asterix.om.base.ADateTime;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.ADuration;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.ALine;
-import edu.uci.ics.asterix.om.base.APoint;
-import edu.uci.ics.asterix.om.base.APoint3D;
-import edu.uci.ics.asterix.om.base.APolygon;
-import edu.uci.ics.asterix.om.base.ARectangle;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.base.ATime;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * The mechanism by which results are iterated over. Results from ASTERIX may
- * come in the form of a set of objects which may either be primitives (e.g.
- * int, string, ...), collections (e.g. ordered lists, unordered lists, ...),
- * records, or some combination thereof.
- * 
- * @author zheilbron
- */
-public interface IADMCursor {
-    public ABinary getBinary() throws AQLJException;
-
-    public ABinary getBinary(String field) throws AQLJException;
-
-    public ABitArray getBitArray() throws AQLJException;
-
-    public ABitArray getBitArray(String field) throws AQLJException;
-
-    public ABoolean getBoolean() throws AQLJException;
-
-    public ABoolean getBoolean(String field) throws AQLJException;
-
-    public ACircle getCircle() throws AQLJException;
-
-    public ACircle getCircle(String field) throws AQLJException;
-
-    public ADate getDate() throws AQLJException;
-
-    public ADate getDate(String field) throws AQLJException;
-
-    public ADateTime getDateTime() throws AQLJException;
-
-    public ADateTime getDateTime(String field) throws AQLJException;
-
-    public ADouble getDouble() throws AQLJException;
-
-    public ADouble getDouble(String field) throws AQLJException;
-
-    public ADuration getDuration() throws AQLJException;
-
-    public ADuration getDuration(String field) throws AQLJException;
-
-    public AFloat getFloat() throws AQLJException;
-
-    public AFloat getFloat(String field) throws AQLJException;
-
-    public AInt8 getInt8() throws AQLJException;
-
-    public AInt8 getInt8(String field) throws AQLJException;
-
-    public AInt16 getInt16() throws AQLJException;
-
-    public AInt16 getInt16(String field) throws AQLJException;
-
-    public AInt32 getInt32() throws AQLJException;
-
-    public AInt32 getInt32(String field) throws AQLJException;
-
-    public AInt64 getInt64() throws AQLJException;
-
-    public AInt64 getInt64(String field) throws AQLJException;
-
-    public ALine getLine() throws AQLJException;
-
-    public ALine getLine(String field) throws AQLJException;
-
-    public APoint getPoint() throws AQLJException;
-
-    public APoint getPoint(String field) throws AQLJException;
-
-    public APoint3D getPoint3D() throws AQLJException;
-
-    public APoint3D getPoint3D(String field) throws AQLJException;
-
-    public APolygon getPolygon() throws AQLJException;
-
-    public APolygon getPolygon(String field) throws AQLJException;
-
-    public ARectangle getRectangle() throws AQLJException;
-
-    public ARectangle getRectangle(String field) throws AQLJException;
-
-    public AString getString(String field) throws AQLJException;
-
-    public AString getString() throws AQLJException;
-
-    public ATime getTime() throws AQLJException;
-
-    public ATime getTime(String field) throws AQLJException;
-
-    /**
-     * Advances the cursor to the next object
-     * 
-     * @return true if the cursor points to a an object
-     * @throws AQLJException
-     */
-    public boolean next() throws AQLJException;
-
-    /**
-     * Positions the cursor c on the object pointed to by this
-     * 
-     * @param c
-     *            the cursor to position
-     * @throws AQLJException
-     */
-    public void position(IADMCursor c) throws AQLJException;
-
-    /**
-     * Positions the cursor c on the object associated with the given field
-     * 
-     * @param c
-     *            the cursor to position
-     * @param field
-     *            the field name
-     * @throws AQLJException
-     */
-    public void position(IADMCursor c, String field) throws AQLJException;
-
-    /**
-     * Returns the type of the current object being pointed at, which may be
-     * null.
-     * 
-     * @return the type of the current object
-     */
-    public IAType getType();
-
-    /**
-     * Returns the current object being pointed at, which may be null.
-     * 
-     * @return the current object
-     */
-    public IAObject get();
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java
deleted file mode 100644
index 8fdf59d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * The connection (session) that serves as the context for communicating with
- * ASTERIX.
- * 
- * @author zheilbron
- */
-public interface IAQLJConnection {
-    /**
-     * Execute an AQL statement that returns an IAQLJResult. The IAQLJResult
-     * will contain all associated results of the AQL statement.
-     * 
-     * @param stmt
-     *            the AQL statement
-     * @return the results of the AQL statement as an IAQLJResult
-     * @throws AQLJException
-     */
-    public IAQLJResult execute(String stmt) throws AQLJException;
-
-    /**
-     * Create a cursor to iterate over results
-     * 
-     * @return an unpositioned cursor
-     */
-    public IADMCursor createADMCursor();
-
-    /**
-     * Close the connection with the server.
-     */
-    public void close() throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java
deleted file mode 100644
index b28b3c6..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import java.io.IOException;
-
-/**
- * The results associated with an AQL statement.
- * 
- * @author zheilbron
- */
-public interface IAQLJResult extends IADMCursor {
-    /**
-     * Close the cursor and discard any associated results.
-     * It's important to ensure that this method is called in order to free up
-     * the associated result buffer.
-     */
-    public void close() throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java
deleted file mode 100644
index 9fddad5..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.client;
-
-import java.io.DataInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-
-/**
- * This class supports the buffering of results that are received from the
- * server. The results are buffered completely to a file on disk. The results
- * that are sent back should contain a serde in order to read the results back
- * in. To see the expected format refer to {@link edu.uci.ics.algebricks.runtime.hyracks.writers.SerializedDataWriterFactory} .
- * 
- * @author zheilbron
- */
-public class ResultBuffer {
-    private static final Logger LOGGER = Logger.getLogger(ResultBuffer.class.getName());
-
-    private static final int BUF_SIZE = 8192;
-
-    private final byte[] buffer;
-    private final File tmpFile;
-    private final FileOutputStream fos;
-    private final FileInputStream fis;
-    private final DataInputStream dis;
-
-    private ObjectInputStream ois;
-    private ISerializerDeserializer serde;
-
-    public ResultBuffer() throws IOException {
-        buffer = new byte[BUF_SIZE];
-        tmpFile = File.createTempFile("aqlj", null, new File(System.getProperty("java.io.tmpdir")));
-        fos = new FileOutputStream(tmpFile);
-        fis = new FileInputStream(tmpFile);
-        dis = new DataInputStream(fis);
-        serde = null;
-    }
-
-    private RecordDescriptor getRecordDescriptor() throws AQLJException {
-        RecordDescriptor rd;
-        try {
-            ois = new ObjectInputStream(fis);
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-        try {
-            rd = (RecordDescriptor) ois.readObject();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        } catch (ClassNotFoundException e) {
-            throw new AQLJException(e);
-        }
-        return rd;
-    }
-
-    public IAObject get() throws AQLJException {
-        Object o;
-
-        if (serde == null) {
-            serde = getRecordDescriptor().getFields()[0];
-        }
-
-        try {
-            o = serde.deserialize(dis);
-        } catch (HyracksDataException e) {
-            // this is expected behavior... we know when we've reached the end
-            // of the
-            // results when a EOFException (masked by the HyracksDataException)
-            // is thrown
-            o = null;
-        }
-
-        return (IAObject) o;
-    }
-
-    public void appendMessage(AQLJStream aqljStream, long len) throws IOException {
-        long pos = 0;
-        long read = 0;
-        long remaining = 0;
-
-        while (pos < len) {
-            remaining = len - pos;
-            read = remaining > BUF_SIZE ? BUF_SIZE : remaining;
-            aqljStream.receive(buffer, 0, (int) read);
-            pos += read;
-            fos.write(buffer, 0, (int) read);
-        }
-    }
-
-    public void close() throws IOException {
-        // remove the file!
-        if (tmpFile.exists()) {
-            tmpFile.delete();
-        }
-        fos.close();
-        fis.close();
-        dis.close();
-        if (ois != null) {
-            ois.close();
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java
deleted file mode 100644
index 7c19a56..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.common;
-
-/**
- * This is the base (and currently the only) exception class for AQLJ.
- * 
- * @author zheilbron
- */
-public class AQLJException extends Exception {
-    private static final long serialVersionUID = 1L;
-
-    public AQLJException(String message) {
-        super(message);
-    }
-
-    public AQLJException(String message, Throwable cause) {
-        super(message, cause);
-    }
-
-    public AQLJException(Throwable cause) {
-        super(cause);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java
deleted file mode 100644
index 83ef0e5..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.common;
-
-/**
- * This class provides constants for message types in the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public abstract class AQLJProtocol {
-    public static final char STARTUP_MESSAGE = 'S';
-    public static final char EXECUTE_MESSAGE = 'X';
-    public static final char READY_MESSAGE = 'R';
-    public static final char ERROR_MESSAGE = 'E';
-    public static final char EXECUTE_COMPLETE_MESSAGE = 'C';
-    public static final char DATA_MESSAGE = 'D';
-    public static final char GET_RESULTS_MESSAGE = 'G';
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java
deleted file mode 100644
index c595284..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.common;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.EOFException;
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * This class provides a clean mechanism for sending and receiving the data
- * types involved in the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public class AQLJStream {
-    private static final int BUF_SIZE = 8192;
-
-    private final String host;
-    private final int port;
-    private final Socket connection;
-    private final BufferedInputStream aqljInput;
-    private final BufferedOutputStream aqljOutput;
-
-    private final byte[] int16Buf;
-    private final byte[] int32Buf;
-
-    public AQLJStream(String host, int port) throws IOException {
-        this.host = host;
-        this.port = port;
-
-        connection = new Socket(host, port);
-
-        aqljInput = new BufferedInputStream(connection.getInputStream(), BUF_SIZE);
-        aqljOutput = new BufferedOutputStream(connection.getOutputStream(), BUF_SIZE);
-
-        int16Buf = new byte[2];
-        int32Buf = new byte[4];
-    }
-
-    public AQLJStream(Socket sock) throws IOException {
-        this.host = null;
-        this.port = 0;
-
-        this.connection = sock;
-        aqljInput = new BufferedInputStream(connection.getInputStream(), BUF_SIZE);
-        aqljOutput = new BufferedOutputStream(connection.getOutputStream(), BUF_SIZE);
-
-        int16Buf = new byte[2];
-        int32Buf = new byte[4];
-    }
-
-    public String getHost() {
-        return host;
-    }
-
-    public int getPort() {
-        return port;
-    }
-
-    public Socket getSocket() {
-        return connection;
-    }
-
-    public void receive(byte[] buf, int off, int len) throws IOException {
-        int read;
-        int count = 0;
-        while (count < len) {
-            read = aqljInput.read(buf, off + count, len - count);
-            if (read < 0) {
-                throw new EOFException();
-            }
-            count += read;
-        }
-    }
-
-    public byte[] receive(int len) throws IOException {
-        byte[] result = new byte[len];
-        receive(result, 0, len);
-        return result;
-    }
-
-    public int receiveInt16() throws IOException {
-        if (aqljInput.read(int16Buf) != 2) {
-            throw new EOFException();
-        }
-        return (int16Buf[0] & 0xff) << 8 | (int16Buf[1] & 0xff);
-    }
-
-    public long receiveUnsignedInt32() throws IOException {
-        if (aqljInput.read(int32Buf) != 4) {
-            throw new EOFException();
-        }
-        return ((int32Buf[0] & 0xff) << 24 | (int32Buf[1] & 0xff) << 16 | (int32Buf[2] & 0xff) << 8 | (int32Buf[3] & 0xff)) & 0x00000000ffffffffl;
-    }
-
-    public int receiveChar() throws IOException {
-        int c = aqljInput.read();
-        if (c < 0) {
-            throw new EOFException();
-        }
-        return c;
-    }
-
-    public String receiveString() throws IOException {
-        int strlen = receiveInt16();
-        return new String(receive(strlen), "UTF8");
-    }
-
-    public void send(byte[] buf) throws IOException {
-        aqljOutput.write(buf);
-    }
-
-    public void send(byte[] buf, int off, int len) throws IOException {
-        aqljOutput.write(buf, off, len);
-    }
-
-    public void sendInt16(int val) throws IOException {
-        int16Buf[0] = (byte) (val >>> 8);
-        int16Buf[1] = (byte) (val);
-        aqljOutput.write(int16Buf);
-    }
-
-    public void sendUnsignedInt32(long val) throws IOException {
-        int32Buf[0] = (byte) (val >>> 24);
-        int32Buf[1] = (byte) (val >>> 16);
-        int32Buf[2] = (byte) (val >>> 8);
-        int32Buf[3] = (byte) (val);
-        aqljOutput.write(int32Buf);
-    }
-
-    public void sendChar(int c) throws IOException {
-        aqljOutput.write(c);
-    }
-
-    public void sendString(byte[] strBytes) throws IOException {
-        sendInt16(strBytes.length);
-        send(strBytes);
-    }
-
-    public void sendString(String str) throws IOException {
-        byte[] strBytes = str.getBytes("UTF8");
-        sendInt16(strBytes.length);
-        send(strBytes);
-    }
-
-    public void flush() throws IOException {
-        aqljOutput.flush();
-    }
-
-    public void close() throws IOException {
-        aqljInput.close();
-        aqljOutput.close();
-        connection.close();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
deleted file mode 100644
index 87e899e..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringReader;
-import java.net.Socket;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Set;
-import java.util.logging.Logger;
-
-import org.json.JSONException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-import edu.uci.ics.asterix.api.common.APIFramework;
-import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.api.common.Job;
-import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
-import edu.uci.ics.asterix.aql.parser.AQLParser;
-import edu.uci.ics.asterix.aql.parser.ParseException;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.hyracks.bootstrap.AsterixNodeState;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-
-/**
- * This class is the client handler for the APIServer. The AQLJ protocol is used
- * for communicating with the client. The client, for example, may send a
- * message to execute an AQL statement. It is up to this class to process that
- * AQL statement and pass back the results, if any, to the client.
- * 
- * @author zheilbron
- */
-public class APIClientThread extends Thread {
-    private static final Logger LOGGER = Logger.getLogger(APIClientThread.class.getName());
-
-    private static final int RESULT_BUF_SIZE = 8192;
-
-    private final IHyracksClientConnection hcc;
-    private final ICCApplicationContext appContext;
-    private final AQLJStream clientStream;
-    private final String outputFilePath;
-    private final String outputNodeName;
-    private final String outputNodeIP;
-    private final String binaryOutputClause;
-
-    private AQLJStream nodeDataServerStream;
-    private int nodeDataServerPort;
-    private String dataverse;
-
-    public APIClientThread(IHyracksClientConnection hcc, Socket clientSocket, ICCApplicationContext appCtx)
-            throws IOException {
-        this.hcc = hcc;
-        clientStream = new AQLJStream(clientSocket);
-        this.appContext = appCtx;
-
-        // get the name of the first node controller that we find
-        // all query results will be written to this node
-        Map<String, Set<String>> nodeNameMap = new HashMap<String, Set<String>>();
-        try {
-            this.appContext.getCCContext().getIPAddressNodeMap(nodeNameMap);
-        } catch (Exception e) {
-            throw new IOException(" unable to obtain IP address node map", e);
-        }
-        outputNodeIP = (String) nodeNameMap.keySet().toArray()[0];
-        outputNodeName = (String) nodeNameMap.get(outputNodeIP).toArray()[0];
-
-        // get the port of the node data server that is running on the first nc
-        IAsterixStateProxy proxy = (IAsterixStateProxy) appCtx.getDistributedState();
-        nodeDataServerPort = ((AsterixNodeState) proxy.getAsterixNodeState(outputNodeName)).getAPINodeDataServerPort();
-        nodeDataServerStream = null;
-
-        // write the data into the output stores directory of the nc
-        // if output stores are unavailable (could they ever be?), then write to
-        // tmpdir which can be overridden
-        // Also, use milliseconds in path name of output file to differentiate
-        // queries
-        Map<String, String[]> storesMap = AsterixProperties.INSTANCE.getStores();
-        String[] outputStores = storesMap.get(outputNodeName);
-        if (outputStores.length > 0) {
-            outputFilePath = outputStores[0] + System.currentTimeMillis() + ".adm";
-        } else {
-            outputFilePath = System.getProperty("java.io.tmpdir") + File.pathSeparator + System.currentTimeMillis()
-                    + ".adm";
-        }
-
-        // the "write output..." clause is inserted into incoming AQL statements
-        binaryOutputClause = "write output to "
-                + outputNodeName
-                + ":\""
-                + outputFilePath
-                + "\" using \"edu.uci.ics.hyracks.algebricks.core.algebra.runtime.writers.SerializedDataWriterFactory\";";
-
-    }
-
-    private void startup() throws IOException {
-        int messageType;
-
-        clientStream.receiveUnsignedInt32();
-        messageType = clientStream.receiveChar();
-        dataverse = clientStream.receiveString();
-        if (messageType == AQLJProtocol.STARTUP_MESSAGE) {
-            // send Ready
-            sendReady();
-        } else {
-            // send Error
-            LOGGER.warning("Error: received message other than Startup. Exiting.");
-            String err = "startup failed: no Startup message received";
-            sendError(err);
-        }
-    }
-
-    public void run() {
-        String outputPath;
-        int messageType;
-
-        try {
-            // startup phase
-            startup();
-
-            // normal execution phase
-            while (true) {
-                // check if we should close
-                if (Thread.interrupted()) {
-                    close();
-                    return;
-                }
-
-                clientStream.receiveUnsignedInt32();
-                messageType = clientStream.receiveChar();
-                switch (messageType) {
-                    case AQLJProtocol.EXECUTE_MESSAGE:
-                        // Execute
-                        String query = clientStream.receiveString();
-                        String fullQuery = "use dataverse " + dataverse + ";\n" + binaryOutputClause + '\n' + query;
-
-                        try {
-                            outputPath = executeStatement(fullQuery);
-                        } catch (AQLJException e) {
-                            LOGGER.severe("Error occurred while executing query: " + fullQuery);
-                            LOGGER.severe(e.getMessage());
-                            sendError(e.getMessage());
-                            break;
-                        }
-
-                        if (outputPath == null) {
-                            // The query ran, but produced no results. This
-                            // means cardinality of the
-                            // result is 0 or "actions" were performed, where
-                            // actions are things like create
-                            // type, create dataset, etc.
-                            sendExecuteComplete();
-                        } else {
-                            // otherwise, there are some results, so send them
-                            // back to the client
-                            if (sendResults(outputPath)) {
-                                sendExecuteComplete();
-                            } else {
-                                String err = "Error: unable to retrieve results from " + outputNodeName;
-                                LOGGER.severe(err);
-                                sendError(err);
-                            }
-                        }
-                        break;
-                    default:
-                        String err = "Error: received unknown message of type " + (char) messageType;
-                        sendError(err);
-                        LOGGER.severe(err);
-                        close();
-                        return;
-                }
-            }
-        } catch (IOException e) {
-            // the normal path that is taken when exiting
-            close();
-            return;
-        }
-    }
-
-    private void close() {
-        try {
-            if (nodeDataServerStream != null) {
-                nodeDataServerStream.close();
-            }
-        } catch (IOException e) {
-            LOGGER.severe("Error closing NodeData AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-        try {
-            clientStream.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing client AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-
-    private String executeStatement(String stmt) throws IOException, AQLJException {
-        PrintWriter out = new PrintWriter(System.out);
-        AqlCompiledMetadataDeclarations metadata = null;
-        try {
-            AQLParser parser = new AQLParser(new StringReader(stmt));
-            Query q = (Query) parser.Statement();
-            SessionConfig pc = new SessionConfig(AsterixHyracksIntegrationUtil.DEFAULT_HYRACKS_CC_CLIENT_PORT, true,
-                    false, false, false, false, false, false);
-            pc.setGenerateJobSpec(true);
-
-            MetadataManager.INSTANCE.init();
-            if (q != null) {
-                String dataverse = APIFramework.compileDdlStatements(hcc, q, out, pc, DisplayFormat.TEXT);
-                Job[] dmlJobs = APIFramework.compileDmlStatements(dataverse, q, out, pc, DisplayFormat.TEXT);
-                APIFramework.executeJobArray(hcc, dmlJobs, out, DisplayFormat.TEXT);
-            }
-
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverse, q, parser.getVarCounter(), null, metadata, pc, out, DisplayFormat.TEXT, null);
-            JobSpecification spec = metadataAndSpec.second;
-            metadata = metadataAndSpec.first;
-            APIFramework.executeJobArray(hcc, new JobSpecification[] { spec }, out, DisplayFormat.TEXT);
-        } catch (ParseException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (AsterixException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (AlgebricksException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (JSONException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (Exception e) {
-            e.printStackTrace();
-            sendError(e.getMessage());
-        }
-
-        if (metadata == null) {
-            return null;
-        }
-
-        return metadata.getOutputFile().getLocalFile().getFile().getAbsolutePath();
-    }
-
-    private boolean sendResults(String path) throws IOException {
-        int messageType;
-        long len;
-        int sent;
-        int toSend;
-        byte[] buf = new byte[RESULT_BUF_SIZE];
-
-        if (nodeDataServerStream == null) {
-            nodeDataServerStream = new AQLJStream(outputNodeIP, nodeDataServerPort);
-        }
-        sendGetResults(nodeDataServerStream);
-
-        // forward data packets from the nodedataservers through this server to
-        // the client
-        while (true) {
-            len = nodeDataServerStream.receiveUnsignedInt32();
-            messageType = nodeDataServerStream.receiveChar();
-            switch ((char) messageType) {
-                case AQLJProtocol.DATA_MESSAGE:
-                    clientStream.sendUnsignedInt32(len);
-                    clientStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-                    len -= 5;
-                    sent = 0;
-                    while (sent < len) {
-                        len -= sent;
-                        toSend = (len > buf.length) ? buf.length : (int) len;
-                        nodeDataServerStream.receive(buf, 0, toSend);
-                        clientStream.send(buf, 0, toSend);
-                        sent += toSend;
-                    }
-                    clientStream.flush();
-                    break;
-                case AQLJProtocol.EXECUTE_COMPLETE_MESSAGE:
-                    nodeDataServerStream.close();
-                    nodeDataServerStream = null;
-                    return true;
-                default:
-                    nodeDataServerStream.close();
-                    nodeDataServerStream = null;
-                    return false;
-            }
-        }
-    }
-
-    private void sendGetResults(AQLJStream s) throws IOException {
-        byte[] pathBytes = outputFilePath.getBytes("UTF-8");
-        // 4 for the message length, 1 for the message type, 2 for the string
-        // length
-        s.sendUnsignedInt32(4 + 1 + 2 + pathBytes.length);
-        s.sendChar(AQLJProtocol.GET_RESULTS_MESSAGE);
-        s.sendString(outputFilePath);
-        s.flush();
-    }
-
-    private void sendReady() throws IOException {
-        // 4 for the message length and 1 for the message type (4 + 1 = 5)
-        clientStream.sendUnsignedInt32(5);
-        clientStream.sendChar(AQLJProtocol.READY_MESSAGE);
-        clientStream.flush();
-    }
-
-    private void sendError(String msg) throws IOException {
-        byte[] msgBytes = msg.getBytes("UTF-8");
-        // 4 for the message length, 1 for the message type, 2 for the string
-        // length
-        clientStream.sendUnsignedInt32(4 + 1 + 2 + msgBytes.length);
-        clientStream.sendChar(AQLJProtocol.ERROR_MESSAGE);
-        clientStream.sendInt16(msgBytes.length);
-        clientStream.send(msgBytes);
-        clientStream.flush();
-    }
-
-    private void sendExecuteComplete() throws IOException {
-        // 4 for the message length and 1 for the message type (4 + 1 = 5)
-        clientStream.sendUnsignedInt32(5);
-        clientStream.sendChar(AQLJProtocol.EXECUTE_COMPLETE_MESSAGE);
-        clientStream.flush();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java
deleted file mode 100644
index 682d774..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-
-/**
- * This class is a factory for client handler threads of type {@link APIClientThread} and is used in conjunction with {@link ThreadedServer}.
- * 
- * @author zheilbron
- */
-public class APIClientThreadFactory implements IClientThreadFactory {
-    private final ICCApplicationContext appContext;
-
-    private IHyracksClientConnection hcc;
-
-    public APIClientThreadFactory(ICCApplicationContext appContext) throws Exception {
-        this.appContext = appContext;
-        hcc = new HyracksConnection("localhost", appContext.getCCContext().getClusterControllerInfo()
-                .getClientNetPort());
-    }
-
-    @Override
-    public Thread createThread(Socket socket) throws IOException {
-        return new APIClientThread(hcc, socket, appContext);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java
deleted file mode 100644
index bca7f4d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * Implementing this interface allows a class such as {@link ThreadedServer} to
- * spawn a particular type of thread to handle some client connection.
- * 
- * @author zheilbron
- */
-public interface IClientThreadFactory {
-    public Thread createThread(Socket socket) throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java
deleted file mode 100644
index 0246fd9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.net.Socket;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-
-/**
- * This class handles data requests from the APIServer. When a query is executed
- * through the API, the output is written to the local disk of some NC. The
- * APIServer will contact that NC and ask for the results of the query to be
- * sent. This class handles such communication between the NC and APIServer.
- * 
- * @author zheilbron
- */
-public class NodeDataClientThread extends Thread {
-    private static final Logger LOGGER = Logger.getLogger(NodeDataClientThread.class.getName());
-
-    private static final int RESULT_BUFFER_SIZE = 8192;
-
-    private final AQLJStream aqljStream;
-
-    public NodeDataClientThread(Socket clientSocket) throws IOException {
-        aqljStream = new AQLJStream(clientSocket);
-    }
-
-    public void run() {
-        try {
-            getFile();
-        } catch (IOException e) {
-            LOGGER.severe("I/O error occurred over AQLJStream (socket)");
-            LOGGER.severe(e.getMessage());
-        } finally {
-            close();
-        }
-    }
-
-    private void getFile() throws IOException {
-        aqljStream.receiveUnsignedInt32();
-        int type = aqljStream.receiveChar();
-        if ((char) type != AQLJProtocol.GET_RESULTS_MESSAGE) {
-            return;
-        }
-
-        String path = aqljStream.receiveString();
-        File outputFile = new File(path);
-        FileInputStream fis = null;
-        try {
-            fis = new FileInputStream(outputFile);
-        } catch (FileNotFoundException e) {
-            LOGGER.warning("Error: requested file not found: " + path);
-            return;
-        }
-
-        byte[] buf = new byte[RESULT_BUFFER_SIZE];
-        long maxPayload = 0xffffffffL - 5; // 2^32 (max size of payload) - 5
-                                           // (header size)
-        long remainingTotal = outputFile.length();
-        long remainingInner = 0;
-        int sentTotal = 0;
-        int sentInner = 0;
-        int toSend = 0;
-
-        // the results may be large, so cram as much into a packet as possible
-        while (remainingTotal > maxPayload) {
-            aqljStream.sendUnsignedInt32(4 + 1 + maxPayload);
-            aqljStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-            sentInner = 0;
-            remainingInner = 0;
-            while (sentInner < maxPayload) {
-                remainingInner = maxPayload - sentInner;
-                toSend = fis.read(buf, 0, (remainingInner > buf.length) ? buf.length : (int) remainingInner);
-                sentInner += toSend;
-                aqljStream.send(buf, 0, toSend);
-            }
-            aqljStream.flush();
-            sentTotal += maxPayload;
-            remainingTotal -= sentTotal;
-        }
-
-        // send the remaining data
-        if (remainingTotal > 0) {
-            aqljStream.sendUnsignedInt32(4 + 1 + (int) remainingTotal);
-            aqljStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-            sentInner = 0;
-            remainingInner = 0;
-            while (sentInner < remainingTotal) {
-                remainingInner = remainingTotal - sentInner;
-                toSend = fis.read(buf, 0, (remainingInner > buf.length) ? buf.length : (int) remainingInner);
-                sentInner += toSend;
-                aqljStream.send(buf, 0, toSend);
-            }
-            aqljStream.flush();
-        }
-        outputFile.delete();
-        aqljStream.sendUnsignedInt32(5);
-        aqljStream.sendChar(AQLJProtocol.EXECUTE_COMPLETE_MESSAGE);
-        aqljStream.flush();
-    }
-
-    private void close() {
-        try {
-            aqljStream.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java
deleted file mode 100644
index 22efa89..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * This class is a factory for client handler threads of type {@link NodeDataClientThread} and is used in conjunction with {@link ThreadedServer}.
- * 
- * @author zheilbron
- */
-public class NodeDataClientThreadFactory implements IClientThreadFactory {
-    @Override
-    public Thread createThread(Socket socket) throws IOException {
-        return new NodeDataClientThread(socket);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java
deleted file mode 100644
index 573d6a3..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright 2009-2011 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.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.ServerSocket;
-import java.net.Socket;
-import java.net.SocketException;
-import java.util.logging.Logger;
-
-/**
- * This server is a multithreaded server that spawns one connection per client
- * up to MAX_CLIENTS total clients. The type of thread spawned to handle each
- * client request is delegated to a client thread factory that implements the
- * IClientThreadFactory interface.
- * NOTE: The "BE" in logging messages stands for "back-end". This is to
- * differentiate from the "FE" or "front-end" when reviewing log messages.
- * 
- * @author zheilbron
- */
-public class ThreadedServer extends Thread {
-    private static Logger LOGGER = Logger.getLogger(ThreadedServer.class.getName());
-
-    private static final int MAX_CLIENTS = 10;
-
-    private final int port;
-    private final IClientThreadFactory factory;
-
-    private ServerSocket serverSocket;
-    private Socket clientSocket;
-    private Socket[] clientSockets;
-    private Thread[] threads;
-
-    public ThreadedServer(int port, IClientThreadFactory factory) {
-        this.port = port;
-        this.factory = factory;
-        this.clientSockets = new Socket[MAX_CLIENTS];
-        this.threads = new Thread[MAX_CLIENTS];
-        this.clientSocket = null;
-    }
-
-    public void run() {
-        try {
-            serverSocket = new ServerSocket(port);
-        } catch (IOException e) {
-            LOGGER.severe("Error listening on port: " + port);
-            LOGGER.severe(e.getMessage());
-            return;
-        }
-        LOGGER.info("Server started. Listening on port: " + port);
-
-        while (true) {
-            try {
-                clientSocket = serverSocket.accept();
-            } catch (SocketException e) {
-                // This is the normal path the server will take when exiting.
-                //
-                // In order to close the server down properly, the
-                // serverSocket.accept() call must
-                // be interrupted. The only way to interrupt the
-                // serverSocket.accept() call in the loop
-                // above is by calling serverSocket.close() (as is done in the
-                // ThreadedServer.shutdown() method
-                // below). The serverSocket.accept() then throws a
-                // SocketException, so we catch it here
-                // and assume that ThreadedServer.shutdown() was called.
-
-                return;
-            } catch (IOException e) {
-                LOGGER.severe("Failed to accept() connection");
-                LOGGER.severe(e.getMessage());
-            }
-
-            for (int i = 0; i < threads.length; i++) {
-                if (threads[i] == null || !threads[i].isAlive()) {
-                    try {
-                        threads[i] = factory.createThread(clientSocket);
-                    } catch (IOException e) {
-                        LOGGER.severe("Failed to create client handler thread");
-                        LOGGER.severe(e.getMessage());
-                    }
-                    clientSockets[i] = clientSocket;
-                    threads[i].start();
-                    clientSocket = null;
-                    break;
-                }
-            }
-
-            // setting the clientSocket to null is an indicator the there was
-            // room for the
-            // connection (i.e. the number of clients < MAX_CLIENTS). If it is
-            // not set, then
-            // there was no room for the connection, so the client is dropped.
-            if (clientSocket != null) {
-                try {
-                    clientSocket.close();
-                } catch (IOException e) {
-                    LOGGER.severe("Error closing (dropped) client socket.");
-                    LOGGER.severe(e.getMessage());
-                }
-                LOGGER.warning("Client was dropped. Maximum number of connections reached!");
-            }
-        }
-    }
-
-    public void shutdown() {
-        try {
-            serverSocket.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing server socket.");
-            LOGGER.severe(e.getMessage());
-        }
-
-        try {
-            for (int i = 0; i < threads.length; i++) {
-                if (threads[i] != null && threads[i].isAlive()) {
-                    clientSockets[i].close();
-                    threads[i].interrupt();
-                }
-            }
-        } catch (IOException e) {
-            LOGGER.severe("Error closing client socket.");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
index 13c904e..862c701 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
@@ -1,3 +1,17 @@
+/*
+ * 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.api.common;
 
 import java.io.PrintWriter;
@@ -8,11 +22,11 @@
 import org.json.JSONException;
 
 import edu.uci.ics.asterix.api.common.Job.SubmissionMode;
-import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.FunctionDecl;
 import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.visitor.AQLPrintVisitor;
 import edu.uci.ics.asterix.aql.rewrites.AqlRewriter;
-import edu.uci.ics.asterix.aql.translator.DdlTranslator;
+import edu.uci.ics.asterix.common.api.AsterixAppContextInfoImpl;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
@@ -20,55 +34,49 @@
 import edu.uci.ics.asterix.dataflow.data.common.AqlMergeAggregationExpressionFactory;
 import edu.uci.ics.asterix.dataflow.data.common.AqlNullableTypeComputer;
 import edu.uci.ics.asterix.dataflow.data.common.AqlPartialAggregationTypeComputer;
-import edu.uci.ics.asterix.file.DatasetOperations;
-import edu.uci.ics.asterix.file.FeedOperations;
-import edu.uci.ics.asterix.file.IndexOperations;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.jobgen.AqlLogicalExpressionJobGen;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.optimizer.base.RuleCollections;
 import edu.uci.ics.asterix.runtime.job.listener.JobEventListenerFactory;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.translator.AqlExpressionToPlanTranslator;
-import edu.uci.ics.asterix.translator.DmlTranslator;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledBeginFeedStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledControlFeedStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledCreateIndexStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledDeleteStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledInsertStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledLoadFromFileStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledWriteFromQueryResultStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.ICompiledDmlStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder;
 import edu.uci.ics.hyracks.algebricks.compiler.api.ICompiler;
 import edu.uci.ics.hyracks.algebricks.compiler.api.ICompilerFactory;
 import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController;
 import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionEvalSizeComputer;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionTypeComputer;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IMergeAggregationExpressionFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.INullableTypeComputer;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.LogicalOperatorPrettyPrintVisitor;
 import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.PlanPrettyPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AbstractRuleController;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AlgebricksOptimizationContext;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IOptimizationContextFactory;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.job.IJobletEventListenerFactory;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 
+/**
+ * Provides helper methods for compilation of a query into a JobSpec and submission
+ * to Hyracks through the Hyracks client interface.
+ */
 public class APIFramework {
 
     private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildDefaultLogicalRewrites() {
@@ -99,7 +107,11 @@
         defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
                 RuleCollections.buildConsolidationRuleCollection()));
         defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                RuleCollections.buildOpPushDownRuleCollection()));
+                RuleCollections.buildAccessMethodRuleCollection()));
+        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
+                RuleCollections.buildPlanCleanupRuleCollection()));
+
+        //put TXnRuleCollection!
         return defaultLogicalRewrites;
     }
 
@@ -138,209 +150,20 @@
 
     public enum DisplayFormat {
         TEXT,
-        HTML
+        HTML,
+        JSON
     }
 
-    public static String compileDdlStatements(IHyracksClientConnection hcc, Query query, PrintWriter out,
-            SessionConfig pc, DisplayFormat pdf) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
-        // Begin a transaction against the metadata.
-        // Lock the metadata in X mode to protect against other DDL and DML.
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.EXCLUSIVE);
-        try {
-            DdlTranslator ddlt = new DdlTranslator(mdTxnCtx, query.getPrologDeclList(), out, pc, pdf);
-            ddlt.translate(hcc, false);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return ddlt.getCompiledDeclarations().getDataverseName();
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            e.printStackTrace();
-            throw new AlgebricksException(e);
-        }
-    }
-
-    public static Job[] compileDmlStatements(String dataverseName, Query query, PrintWriter out, SessionConfig pc,
-            DisplayFormat pdf) throws AsterixException, AlgebricksException, JSONException, RemoteException,
-            ACIDException {
-
-        // Begin a transaction against the metadata.
-        // Lock the metadata in S mode to protect against other DDL
-        // modifications.
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.SHARED);
-        try {
-            DmlTranslator dmlt = new DmlTranslator(mdTxnCtx, query.getPrologDeclList());
-            dmlt.translate();
-
-            if (dmlt.getCompiledDmlStatements().size() == 0) {
-                // There is no DML to run. Consider the transaction against the
-                // metadata successful.
-                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-                return new Job[] {};
-            }
-
-            List<Job> dmlJobs = new ArrayList<Job>();
-            AqlCompiledMetadataDeclarations metadata = dmlt.getCompiledDeclarations();
-
-            if (!metadata.isConnectedToDataverse())
-                metadata.connectToDataverse(metadata.getDataverseName());
-
-            for (ICompiledDmlStatement stmt : dmlt.getCompiledDmlStatements()) {
-                switch (stmt.getKind()) {
-                    case LOAD_FROM_FILE: {
-                        CompiledLoadFromFileStatement stmtLoad = (CompiledLoadFromFileStatement) stmt;
-                        dmlJobs.addAll(DatasetOperations.createLoadDatasetJobSpec(stmtLoad, metadata));
-                        break;
-                    }
-                    case WRITE_FROM_QUERY_RESULT: {
-                        CompiledWriteFromQueryResultStatement stmtLoad = (CompiledWriteFromQueryResultStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf,
-                                Statement.Kind.WRITE_FROM_QUERY_RESULT);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case INSERT: {
-                        CompiledInsertStatement stmtLoad = (CompiledInsertStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.INSERT);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case DELETE: {
-                        CompiledDeleteStatement stmtLoad = (CompiledDeleteStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.DELETE);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case CREATE_INDEX: {
-                        CompiledCreateIndexStatement cis = (CompiledCreateIndexStatement) stmt;
-                        JobSpecification jobSpec = IndexOperations.buildCreateIndexJobSpec(cis, metadata);
-                        dmlJobs.add(new Job(jobSpec));
-                        break;
-                    }
-
-                    case BEGIN_FEED: {
-                        CompiledBeginFeedStatement cbfs = (CompiledBeginFeedStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, cbfs.getQuery(), cbfs.getVarCounter(), cbfs.getDatasetName().getValue(),
-                                metadata, sc2, out, pdf, Statement.Kind.BEGIN_FEED);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-
-                    }
-
-                    case CONTROL_FEED: {
-                        CompiledControlFeedStatement cfs = (CompiledControlFeedStatement) stmt;
-                        Job job = new Job(FeedOperations.buildControlFeedJobSpec(cfs, metadata),
-                                SubmissionMode.ASYNCHRONOUS);
-                        dmlJobs.add(job);
-                        break;
-                    }
-                    default: {
-                        throw new IllegalArgumentException();
-                    }
-                }
-            }
-            if (pc.isPrintJob()) {
-                int i = 0;
-                for (Job js : dmlJobs) {
-                    out.println("<H1>Hyracks job number " + i + ":</H1>");
-                    out.println("<PRE>");
-                    out.println(js.getJobSpec().toJSON().toString(1));
-                    out.println(js.getJobSpec().getUserConstraints());
-                    out.println(js.getSubmissionMode());
-                    out.println("</PRE>");
-                    i++;
-                }
-            }
-            // close connection to dataverse
-            if (metadata.isConnectedToDataverse())
-                metadata.disconnectFromDataverse();
-
-            Job[] jobs = dmlJobs.toArray(new Job[0]);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return jobs;
-        } catch (AsterixException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (AlgebricksException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (JSONException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw new AsterixException(e);
-        }
-    }
-
-    public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQuery(String dataverseName, Query q,
-            int varCounter, String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc,
-            PrintWriter out, DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException,
-            JSONException, RemoteException, ACIDException {
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        try {
-            MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.SHARED);
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> result = compileQueryInternal(mdTxnCtx,
-                    dataverseName, q, varCounter, outputDatasetName, metadataDecls, pc, out, pdf, dmlKind);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return result;
-        } catch (AsterixException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (AlgebricksException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (JSONException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (RemoteException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (ACIDException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw new AsterixException(e);
-        }
-    }
-
-    public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQueryInternal(
-            MetadataTransactionContext mdTxnCtx, String dataverseName, Query q, int varCounter,
-            String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc, PrintWriter out,
-            DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
+    public static Pair<Query, Integer> reWriteQuery(List<FunctionDecl> declaredFunctions,
+            AqlMetadataProvider metadataProvider, Query q, SessionConfig pc, PrintWriter out, DisplayFormat pdf)
+            throws AsterixException {
 
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintExprParam()) {
             out.println();
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Expression tree:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Expression tree:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -353,21 +176,29 @@
             }
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
-        AqlRewriter rw = new AqlRewriter(q, varCounter, mdTxnCtx, dataverseName);
+        AqlRewriter rw = new AqlRewriter(declaredFunctions, q, metadataProvider.getMetadataTxnContext());
         rw.rewrite();
         Query rwQ = rw.getExpr();
+        return new Pair(rwQ, rw.getVarCounter());
+    }
+
+    public static JobSpecification compileQuery(List<FunctionDecl> declaredFunctions,
+            AqlMetadataProvider queryMetadataProvider, Query rwQ, int varCounter, String outputDatasetName,
+            SessionConfig pc, PrintWriter out, DisplayFormat pdf, ICompiledDmlStatement statement)
+            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
+
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintRewrittenExprParam()) {
             out.println();
 
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Rewriten expression tree:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Rewriten expression tree:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -376,41 +207,35 @@
                 }
             }
 
-            if (q != null) {
+            if (rwQ != null) {
                 rwQ.accept(new AQLPrintVisitor(out), 0);
             }
 
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
 
         }
-        long txnId = TransactionIDFactory.generateTransactionId();
-        AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(txnId, mdTxnCtx, rw.getVarCounter(),
-                outputDatasetName, dmlKind);
 
-        ILogicalPlanAndMetadata planAndMetadata = t.translate(rwQ, metadataDecls);
-        boolean isWriteTransaction = false;
-        AqlMetadataProvider mp = (AqlMetadataProvider) planAndMetadata.getMetadataProvider();
-        if (metadataDecls == null) {
-            metadataDecls = mp.getMetadataDeclarations();
-        }
-        isWriteTransaction = mp.isWriteTransaction();
+        edu.uci.ics.asterix.transaction.management.service.transaction.JobId asterixJobId = JobIdFactory
+                .generateJobId();
+        queryMetadataProvider.setJobId(asterixJobId);
+        AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(queryMetadataProvider, varCounter,
+                outputDatasetName, statement);
 
-        if (outputDatasetName == null && metadataDecls.getOutputFile() == null) {
-            throw new AlgebricksException("Unknown output file: `write output to nc:\"file\"' statement missing.");
-        }
+        ILogicalPlan plan = t.translate(rwQ);
+        boolean isWriteTransaction = queryMetadataProvider.isWriteTransaction();
 
         LogicalOperatorPrettyPrintVisitor pvisitor = new LogicalOperatorPrettyPrintVisitor();
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintLogicalPlanParam()) {
 
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Logical plan:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Logical plan:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -419,41 +244,27 @@
                 }
             }
 
-            if (q != null) {
+            if (rwQ != null) {
                 StringBuilder buffer = new StringBuilder();
-                PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
+                PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
                 out.print(buffer);
             }
 
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
 
-        int frameSize = GlobalConfig.DEFAULT_FRAME_SIZE;
-        String frameSizeStr = System.getProperty(GlobalConfig.FRAME_SIZE_PROPERTY);
-        if (frameSizeStr != null) {
-            int fz = -1;
-            try {
-                fz = Integer.parseInt(frameSizeStr);
-            } catch (NumberFormatException nfe) {
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong frame size size argument. Picking default value ("
-                        + GlobalConfig.DEFAULT_FRAME_SIZE + ") instead.\n");
-                throw new AlgebricksException(nfe);
-            }
-            if (fz >= 0) {
-                frameSize = fz;
-            }
-        }
+        int frameSize = GlobalConfig.getFrameSize();
 
         HeuristicCompilerFactoryBuilder builder = new HeuristicCompilerFactoryBuilder(
                 AqlOptimizationContextFactory.INSTANCE);
         builder.setLogicalRewrites(buildDefaultLogicalRewrites());
         builder.setPhysicalRewrites(buildDefaultPhysicalRewrites());
-        IDataFormat format = metadataDecls.getFormat();
+        IDataFormat format = queryMetadataProvider.getFormat();
         ICompilerFactory compilerFactory = builder.create();
         builder.setFrameSize(frameSize);
         builder.setExpressionEvalSizeComputer(format.getExpressionEvalSizeComputer());
@@ -464,69 +275,80 @@
 
         OptimizationConfUtil.getPhysicalOptimizationConfig().setFrameSize(frameSize);
         builder.setPhysicalOptimizationConfig(OptimizationConfUtil.getPhysicalOptimizationConfig());
-        ICompiler compiler = compilerFactory.createCompiler(planAndMetadata.getPlan(),
-                planAndMetadata.getMetadataProvider(), t.getVarCounter());
+
+        ICompiler compiler = compilerFactory.createCompiler(plan, queryMetadataProvider, t.getVarCounter());
         if (pc.isOptimize()) {
             compiler.optimize();
-            if (true) {
-                StringBuilder buffer = new StringBuilder();
-                PlanPrettyPrinter.printPhysicalOps(planAndMetadata.getPlan(), buffer, 0);
-                out.print(buffer);
-            } else if (pc.isPrintOptimizedLogicalPlanParam()) {
-                switch (pdf) {
-                    case HTML: {
-                        out.println("<H1>Optimized logical plan:</H1>");
-                        out.println("<PRE>");
-                        break;
-                    }
-                    case TEXT: {
-                        out.println("----------Optimized plan ");
-                        break;
-                    }
-                }
-
-                if (q != null) {
+            if (pc.isPrintOptimizedLogicalPlanParam()) {
+                if (pc.isPrintPhysicalOpsOnly()) {
+                    // For Optimizer tests.
                     StringBuilder buffer = new StringBuilder();
-                    PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
+                    PlanPrettyPrinter.printPhysicalOps(plan, buffer, 0);
                     out.print(buffer);
-                }
-                switch (pdf) {
-                    case HTML: {
-                        out.println("</PRE>");
-                        break;
+                } else {
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("<h3>Optimized logical plan:</h3>");
+                            out.println("<pre>");
+                            break;
+                        }
+                        case TEXT: {
+                            out.println("----------Optimized plan ");
+                            break;
+                        }
+                    }
+                    if (rwQ != null) {
+                        StringBuilder buffer = new StringBuilder();
+                        PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
+                        out.print(buffer);
+                    }
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("</pre>");
+                            break;
+                        }
                     }
                 }
             }
         }
 
         if (!pc.isGenerateJobSpec()) {
-            // Job spec not requested. Consider transaction against metadata
-            // committed.
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
             return null;
         }
 
-        AlgebricksPartitionConstraint clusterLocs = planAndMetadata.getClusterLocations();
-        builder.setBinaryBooleanInspector(format.getBinaryBooleanInspector());
-        builder.setBinaryIntegerInspector(format.getBinaryIntegerInspector());
+        AlgebricksPartitionConstraint clusterLocs = queryMetadataProvider.getClusterLocations();
+        builder.setBinaryBooleanInspectorFactory(format.getBinaryBooleanInspectorFactory());
+        builder.setBinaryIntegerInspectorFactory(format.getBinaryIntegerInspectorFactory());
         builder.setClusterLocations(clusterLocs);
         builder.setComparatorFactoryProvider(format.getBinaryComparatorFactoryProvider());
-        builder.setExprJobGen(AqlLogicalExpressionJobGen.INSTANCE);
+        builder.setExpressionRuntimeProvider(new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter(
+                AqlLogicalExpressionJobGen.INSTANCE));
         builder.setHashFunctionFactoryProvider(format.getBinaryHashFunctionFactoryProvider());
+        builder.setHashFunctionFamilyProvider(format.getBinaryHashFunctionFamilyProvider());
         builder.setNullWriterFactory(format.getNullWriterFactory());
-        builder.setPrinterProvider(format.getPrinterFactoryProvider());
+
+        switch (pdf) {
+            case JSON:
+                builder.setPrinterProvider(format.getJSONPrinterFactoryProvider());
+                break;
+            default:
+                builder.setPrinterProvider(format.getPrinterFactoryProvider());
+                break;
+        }
+
         builder.setSerializerDeserializerProvider(format.getSerdeProvider());
         builder.setTypeTraitProvider(format.getTypeTraitProvider());
         builder.setNormalizedKeyComputerFactoryProvider(format.getNormalizedKeyComputerFactoryProvider());
 
-        JobSpecification spec = compiler.createJob(AsterixAppContextInfoImpl.INSTANCE);
-        // set the job event listener
-        spec.setJobletEventListenerFactory(new JobEventListenerFactory(txnId, isWriteTransaction));
+        IJobletEventListenerFactory jobEventListenerFactory = new JobEventListenerFactory(asterixJobId,
+                isWriteTransaction);
+        JobSpecification spec = compiler.createJob(AsterixAppContextInfoImpl.getInstance(), jobEventListenerFactory);
+
         if (pc.isPrintJob()) {
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Hyracks job:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Hyracks job:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -534,31 +356,30 @@
                     break;
                 }
             }
-            if (q != null) {
+            if (rwQ != null) {
                 out.println(spec.toJSON().toString(1));
                 out.println(spec.getUserConstraints());
             }
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
-        return new Pair<AqlCompiledMetadataDeclarations, JobSpecification>(metadataDecls, spec);
+        return spec;
     }
 
     public static void executeJobArray(IHyracksClientConnection hcc, JobSpecification[] specs, PrintWriter out,
             DisplayFormat pdf) throws Exception {
         for (int i = 0; i < specs.length; i++) {
             specs[i].setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
+            JobId jobId = hcc.startJob(specs[i]);
             long startTime = System.currentTimeMillis();
-            hcc.start(jobId);
             hcc.waitForCompletion(jobId);
             long endTime = System.currentTimeMillis();
             double duration = (endTime - startTime) / 1000.00;
-            out.println("<PRE>Duration: " + duration + "</PRE>");
+            out.println("<pre>Duration: " + duration + "</pre>");
         }
 
     }
@@ -567,10 +388,9 @@
             throws Exception {
         for (int i = 0; i < jobs.length; i++) {
             jobs[i].getJobSpec().setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, jobs[i].getJobSpec());
             long startTime = System.currentTimeMillis();
             try {
-                hcc.start(jobId);
+                JobId jobId = hcc.startJob(jobs[i].getJobSpec());
                 if (jobs[i].getSubmissionMode() == SubmissionMode.ASYNCHRONOUS) {
                     continue;
                 }
@@ -581,9 +401,21 @@
             }
             long endTime = System.currentTimeMillis();
             double duration = (endTime - startTime) / 1000.00;
-            out.println("<PRE>Duration: " + duration + "</PRE>");
+            out.println("<pre>Duration: " + duration + "</pre>");
         }
 
     }
 
+    private static IDataFormat getDataFormat(MetadataTransactionContext mdTxnCtx, String dataverseName)
+            throws AsterixException {
+        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return format;
+    }
+
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java
deleted file mode 100644
index 5432fb9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package edu.uci.ics.asterix.api.common;
-
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.base.IAsterixApplicationContextInfo;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class AsterixAppContextInfoImpl implements IAsterixApplicationContextInfo {
-
-    public static final AsterixAppContextInfoImpl INSTANCE = new AsterixAppContextInfoImpl();
-
-    private AsterixAppContextInfoImpl() {
-    }
-
-    @Override
-    public IIndexRegistryProvider<IIndex> getTreeRegisterProvider() {
-        return AsterixTreeRegistryProvider.INSTANCE;
-    }
-
-    @Override
-    public IStorageManagerInterface getStorageManagerInterface() {
-        return AsterixStorageManagerInterface.INSTANCE;
-    }
-
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
index 5f4c189..d207acb 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
@@ -3,6 +3,8 @@
 import java.util.EnumSet;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.hyracks.bootstrap.CCApplicationEntryPoint;
+import edu.uci.ics.asterix.hyracks.bootstrap.NCApplicationEntryPoint;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobFlag;
@@ -17,13 +19,12 @@
 
     public static final String NC1_ID = "nc1";
     public static final String NC2_ID = "nc2";
+    public static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
 
     public static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
 
     public static final int DEFAULT_HYRACKS_CC_CLUSTER_PORT = 1099;
 
-    public static final int FRAME_SIZE = 32768;
-
     private static ClusterControllerService cc;
     private static NodeControllerService nc1;
     private static NodeControllerService nc2;
@@ -36,6 +37,7 @@
         ccConfig.clientNetPort = DEFAULT_HYRACKS_CC_CLIENT_PORT;
         ccConfig.clusterNetPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ccConfig.defaultMaxJobAttempts = 0;
+        ccConfig.appCCMainClass = CCApplicationEntryPoint.class.getName();
         // ccConfig.useJOL = true;
         cc = new ClusterControllerService(ccConfig);
         cc.start();
@@ -45,8 +47,9 @@
         ncConfig1.ccPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ncConfig1.clusterNetIPAddress = "127.0.0.1";
         ncConfig1.dataIPAddress = "127.0.0.1";
+        ncConfig1.datasetIPAddress = "127.0.0.1";
         ncConfig1.nodeId = NC1_ID;
-        ncConfig1.frameSize = FRAME_SIZE;
+        ncConfig1.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc1 = new NodeControllerService(ncConfig1);
         nc1.start();
 
@@ -55,28 +58,19 @@
         ncConfig2.ccPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ncConfig2.clusterNetIPAddress = "127.0.0.1";
         ncConfig2.dataIPAddress = "127.0.0.1";
+        ncConfig2.datasetIPAddress = "127.0.0.1";
         ncConfig2.nodeId = NC2_ID;
-        ncConfig2.frameSize = FRAME_SIZE;
+        ncConfig2.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc2 = new NodeControllerService(ncConfig2);
         nc2.start();
 
         hcc = new HyracksConnection(cc.getConfig().clientNetIpAddress, cc.getConfig().clientNetPort);
-        hcc.createApplication(GlobalConfig.HYRACKS_APP_NAME, null);
-
     }
 
     public static IHyracksClientConnection getHyracksClientConnection() {
         return hcc;
     }
 
-    public static void destroyApp() throws Exception {
-        hcc.destroyApplication(GlobalConfig.HYRACKS_APP_NAME);
-    }
-
-    public static void createApp() throws Exception {
-        hcc.createApplication(GlobalConfig.HYRACKS_APP_NAME, null);
-    }
-
     public static void deinit() throws Exception {
         nc2.stop();
         nc1.stop();
@@ -84,9 +78,8 @@
     }
 
     public static void runJob(JobSpecification spec) throws Exception {
-        JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, spec, EnumSet.of(JobFlag.PROFILE_RUNTIME));
         GlobalConfig.ASTERIX_LOGGER.info(spec.toJSON().toString());
-        hcc.start(jobId);
+        JobId jobId = hcc.startJob(spec, EnumSet.of(JobFlag.PROFILE_RUNTIME));
         GlobalConfig.ASTERIX_LOGGER.info(jobId.toString());
         hcc.waitForCompletion(jobId);
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
index 8050a3f..af0b4b4 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
@@ -1,100 +1,56 @@
-/**
- * 
- */
 package edu.uci.ics.asterix.api.common;
 
 public class SessionConfig {
-    private int port;
-    private boolean printExprParam;
-    private boolean printRewrittenExprParam;
-    private boolean printLogicalPlanParam;
-    private boolean printOptimizedLogicalPlanParam;
-    private boolean printPhysicalOpsOnly;
-    private boolean printJob;
-    private boolean optimize;
-    private boolean generateJobSpec = true;
+    private final boolean optimize;
+    private final boolean printExprParam;
+    private final boolean printRewrittenExprParam;
+    private final boolean printLogicalPlanParam;
+    private final boolean printOptimizedLogicalPlanParam;
+    private final boolean printPhysicalOpsOnly;
+    private final boolean generateJobSpec;
+    private final boolean printJob;
 
-    public SessionConfig(int port, boolean optimize, boolean printExprParam, boolean printRewrittenExprParam,
+    public SessionConfig(boolean optimize, boolean printExprParam, boolean printRewrittenExprParam,
             boolean printLogicalPlanParam, boolean printOptimizedLogicalPlanParam, boolean printPhysicalOpsOnly,
-            boolean printJob) {
-        this.setPort(port);
-        this.setOptimize(optimize);
-        this.setPrintExprParam(printExprParam);
-        this.setPrintRewrittenExprParam(printRewrittenExprParam);
-        this.setPrintLogicalPlanParam(printLogicalPlanParam);
-        this.setPrintOptimizedLogicalPlanParam(printOptimizedLogicalPlanParam);
-        this.setPrintPhysicalOpsOnly(printPhysicalOpsOnly);
-        this.setPrintJob(printJob);
-    }
-
-    public void setPort(int port) {
-        this.port = port;
-    }
-
-    public int getPort() {
-        return port;
-    }
-
-    public void setPrintExprParam(boolean printExprParam) {
+            boolean generateJobSpec, boolean printJob) {
+        this.optimize = optimize;
         this.printExprParam = printExprParam;
+        this.printRewrittenExprParam = printRewrittenExprParam;
+        this.printLogicalPlanParam = printLogicalPlanParam;
+        this.printOptimizedLogicalPlanParam = printOptimizedLogicalPlanParam;
+        this.printPhysicalOpsOnly = printPhysicalOpsOnly;
+        this.generateJobSpec = generateJobSpec;
+        this.printJob = printJob;
     }
 
     public boolean isPrintExprParam() {
         return printExprParam;
     }
 
-    public void setPrintRewrittenExprParam(boolean printRewrittenExprParam) {
-        this.printRewrittenExprParam = printRewrittenExprParam;
-    }
-
     public boolean isPrintRewrittenExprParam() {
         return printRewrittenExprParam;
     }
 
-    public void setPrintLogicalPlanParam(boolean printLogicalPlanParam) {
-        this.printLogicalPlanParam = printLogicalPlanParam;
-    }
-
     public boolean isPrintLogicalPlanParam() {
         return printLogicalPlanParam;
     }
 
-    public void setPrintOptimizedLogicalPlanParam(boolean printOptimizedLogicalPlanParam) {
-        this.printOptimizedLogicalPlanParam = printOptimizedLogicalPlanParam;
-    }
-
     public boolean isPrintOptimizedLogicalPlanParam() {
         return printOptimizedLogicalPlanParam;
     }
 
-    public void setPrintJob(boolean printJob) {
-        this.printJob = printJob;
-    }
-
     public boolean isPrintJob() {
         return printJob;
     }
 
-    public void setPrintPhysicalOpsOnly(boolean prinPhysicalOpsOnly) {
-        this.printPhysicalOpsOnly = prinPhysicalOpsOnly;
-    }
-
     public boolean isPrintPhysicalOpsOnly() {
         return printPhysicalOpsOnly;
     }
 
-    public void setOptimize(boolean optimize) {
-        this.optimize = optimize;
-    }
-
     public boolean isOptimize() {
         return optimize;
     }
 
-    public void setGenerateJobSpec(boolean generateJobSpec) {
-        this.generateJobSpec = generateJobSpec;
-    }
-
     public boolean isGenerateJobSpec() {
         return generateJobSpec;
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
index 7bc454a..12fa51a 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
@@ -1,176 +1,143 @@
 package edu.uci.ics.asterix.api.http.servlet;
 
 import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileReader;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.io.PrintWriter;
-import java.io.StringReader;
+import java.util.List;
+import java.util.logging.Level;
 
 import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import edu.uci.ics.asterix.api.common.APIFramework;
 import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.Job;
 import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.parser.TokenMgrError;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
 
 public class APIServlet extends HttpServlet {
     private static final long serialVersionUID = 1L;
 
     private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
 
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
     @Override
     public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        DisplayFormat format = DisplayFormat.HTML;
+        if (request.getContentType().equals("application/json")) {
+            format = DisplayFormat.JSON;
+        } else if (request.getContentType().equals("text/plain")) {
+            format = DisplayFormat.TEXT;
+        }
+
         String query = request.getParameter("query");
         String printExprParam = request.getParameter("print-expr-tree");
         String printRewrittenExprParam = request.getParameter("print-rewritten-expr-tree");
         String printLogicalPlanParam = request.getParameter("print-logical-plan");
         String printOptimizedLogicalPlanParam = request.getParameter("print-optimized-logical-plan");
         String printJob = request.getParameter("print-job");
-        String strPort = request.getParameter("hyracks-port");
-        String strDisplayResult = request.getParameter("display-result");
-        int port = Integer.parseInt(strPort);
-        PrintWriter out = response.getWriter();
+        response.setCharacterEncoding("utf-8");
         response.setContentType("text/html");
-        out.println("<H1>Input statements:</H1>");
-        printInHtml(out, query);
+        PrintWriter out = response.getWriter();
         ServletContext context = getServletContext();
         IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
         try {
             synchronized (context) {
                 hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
-                if (hcc == null) {
-                    hcc = new HyracksConnection("localhost", port);
-                    context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
                 }
             }
-            AQLParser parser = new AQLParser(new StringReader(query));
-            Query q = (Query) parser.Statement();
-            SessionConfig pc = new SessionConfig(port, true, isSet(printExprParam), isSet(printRewrittenExprParam),
-                    isSet(printLogicalPlanParam), isSet(printOptimizedLogicalPlanParam), false, isSet(printJob));
-            pc.setGenerateJobSpec(true);
-
+            AQLParser parser = new AQLParser(query);
+            List<Statement> aqlStatements = parser.Statement();
+            SessionConfig sessionConfig = new SessionConfig(true, isSet(printExprParam),
+                    isSet(printRewrittenExprParam), isSet(printLogicalPlanParam),
+                    isSet(printOptimizedLogicalPlanParam), false, true, isSet(printJob));
             MetadataManager.INSTANCE.init();
-            String dataverseName = null;
-
-            if (q != null) {
-                dataverseName = postDmlStatement(hcc, q, out, pc);
-            }
-
-            if (q.isDummyQuery()) {
-                return;
-            }
-
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverseName, q, parser.getVarCounter(), null, null, pc, out, DisplayFormat.HTML, null);
-            JobSpecification spec = metadataAndSpec.second;
-            GlobalConfig.ASTERIX_LOGGER.info(spec.toJSON().toString(1));
-            AqlCompiledMetadataDeclarations metadata = metadataAndSpec.first;
+            AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, out, sessionConfig, format);
+            double duration = 0;
             long startTime = System.currentTimeMillis();
-            APIFramework.executeJobArray(hcc, new JobSpecification[] { spec }, out, DisplayFormat.HTML);
+            aqlTranslator.compileAndExecute(hcc, hds, false);
             long endTime = System.currentTimeMillis();
-            double duration = (endTime - startTime) / 1000.00;
-            out.println("<H1>Result:</H1>");
-
-            out.println("<PRE>");
-            out.println(metadata.getOutputFile().getNodeName() + ":"
-                    + metadata.getOutputFile().getLocalFile().getFile().getPath());
-            out.println("Duration: " + duration);
-            out.println("</PRE>");
-
-            if (isSet(strDisplayResult)) {
-                out.println("<PRE>");
-                displayFile(metadata.getOutputFile().getLocalFile().getFile(), out);
-                out.println("</PRE>");
-            }
-        } catch (ParseException pe) {
+            duration = (endTime - startTime) / 1000.00;
+            out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
+        } catch (ParseException | TokenMgrError | edu.uci.ics.asterix.aqlplus.parser.TokenMgrError pe) {
+            out.println("<pre class=\"error\">");
             String message = pe.getMessage();
             message = message.replace("<", "&lt");
             message = message.replace(">", "&gt");
-            int pos = message.indexOf("line");
-            int columnPos = message.indexOf(",", pos + 1 + "line".length());
-            int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
-            String line = query.split("\n")[lineNo - 1];
             out.println("SyntaxError:" + message);
-            out.println("==> " + line);
-
+            int pos = message.indexOf("line");
+            if (pos > 0) {
+                int columnPos = message.indexOf(",", pos + 1 + "line".length());
+                int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
+                String[] lines = query.split("\n");
+                if (lineNo >= lines.length) {
+                    out.println("===> &ltBLANK LINE&gt");
+                } else {
+                    String line = lines[lineNo - 1];
+                    out.println("==> " + line);
+                }
+            }
+            out.println("</pre>");
         } catch (Exception e) {
+            GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
+            out.println("<pre class=\"error\">");
             out.println(e.getMessage());
+            out.println("</pre>");
         }
     }
 
     @Override
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        String resourcePath = null;
+        response.setCharacterEncoding("utf-8");
         PrintWriter out = response.getWriter();
-        response.setContentType("text/html");
-        final String form = "<form method=\"post\">"
-                + "<center><textarea cols=\"80\" rows=\"25\" name=\"query\" ></textarea><br/>"
-                + "Port: <input type = \"text\" name = \"hyracks-port\" size=\"5\" maxlength=\"5\" value=\"1098\" /><br/>"
-                + "<input type = \"checkbox\" name = \"print-expr-tree\" value=\"true\" />print parsed expressions<P>"
-                + "<input type = \"checkbox\" name = \"print-rewritten-expr-tree\" value=\"true\" />print rewritten expressions<P>"
-                + "<input type = \"checkbox\" name = \"print-logical-plan\" value=\"true\" checked/>print logical plan<P>"
-                + "<input type = \"checkbox\" name = \"print-optimized-logical-plan\" value=\"true\" checked/>print optimized logical plan<P>"
-                + "<input type = \"checkbox\" name = \"print-job\" value=\"true\" checked/>print Hyracks job<P>"
-                + "<input type = \"checkbox\" name = \"display-result\" value=\"true\" checked/>display NFS file<P>"
-                // +
-                // "<input type = \"checkbox\" name = \"serialize-as-xml\" value=\"true\">serialize as XML<P>"
-                // +
-                // "<input type = \"checkbox\" name = \"show-tuples\" value=\"true\">show the entire tuples<P>"
-                + "<input type=\"submit\"/>" + "</center>" + "</form>";
-        out.println(form);
-    }
+        String requestURI = request.getRequestURI();
+        if (requestURI.equals("/")) {
+            response.setContentType("text/html");
+            resourcePath = "/webui/querytemplate.html";
+        } else {
+            resourcePath = requestURI;
+        }
 
-    private String postDmlStatement(IHyracksClientConnection hcc, Query dummyQ, PrintWriter out, SessionConfig pc)
-            throws Exception {
+        InputStream is = APIServlet.class.getResourceAsStream(resourcePath);
+        if (is == null) {
+            response.sendError(HttpServletResponse.SC_NOT_FOUND);
+            return;
+        }
+        InputStreamReader isr = new InputStreamReader(is);
+        StringBuilder sb = new StringBuilder();
+        BufferedReader br = new BufferedReader(isr);
+        String line = br.readLine();
 
-        String dataverseName = APIFramework.compileDdlStatements(hcc, dummyQ, out, pc, DisplayFormat.TEXT);
-        Job[] dmlJobSpecs = APIFramework.compileDmlStatements(dataverseName, dummyQ, out, pc, DisplayFormat.HTML);
+        while (line != null) {
+            sb.append(line);
+            line = br.readLine();
+        }
 
-        long startTime = System.currentTimeMillis();
-        APIFramework.executeJobArray(hcc, dmlJobSpecs, out, DisplayFormat.HTML);
-        long endTime = System.currentTimeMillis();
-        double duration = (endTime - startTime) / 1000.00;
-        out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
-        return dataverseName;
+        out.println(sb.toString());
     }
 
     private static boolean isSet(String requestParameter) {
         return (requestParameter != null && requestParameter.equals("true"));
     }
-
-    private static void printInHtml(PrintWriter out, String s) {
-        out.println("<PRE>");
-        out.println(s);
-        out.println("</PRE>");
-    }
-
-    private void displayFile(File localFile, PrintWriter out) throws IOException {
-        BufferedReader reader = new BufferedReader(new FileReader(localFile));
-        String inputLine = reader.readLine();
-        int i = 0;
-        while (inputLine != null) {
-            out.println(inputLine);
-            inputLine = reader.readLine();
-            i++;
-            if (i > 500) {
-                out.println("...");
-                out.println("SKIPPING THE REST OF THE RESULTS");
-                break;
-            }
-        }
-        reader.close();
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java
new file mode 100644
index 0000000..61e54d4
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class DDLAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("ddl");
+    }
+
+    protected List<Statement.Kind> getAllowedStatements() {
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.DATAVERSE_DROP, Kind.DATASET_DECL, Kind.NODEGROUP_DECL,
+                Kind.NODEGROUP_DROP, Kind.TYPE_DECL, Kind.TYPE_DROP, Kind.CREATE_INDEX, Kind.INDEX_DECL,
+                Kind.CREATE_DATAVERSE, Kind.DATASET_DROP, Kind.INDEX_DROP, Kind.CREATE_FUNCTION, Kind.FUNCTION_DROP };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-DDL statement %s to the DDL API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java
new file mode 100644
index 0000000..c5b532a
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class HyracksProperties {
+    private final InputStream is;
+
+    private final Properties properties;
+
+    private static String HYRACKS_IP = "127.0.0.1";
+
+    private static int HYRACKS_PORT = 1098;
+
+    public HyracksProperties() throws IOException {
+        is = HyracksProperties.class.getClassLoader().getResourceAsStream("hyracks-deployment.properties");
+        properties = new Properties();
+        properties.load(is);
+    }
+
+    public String getHyracksIPAddress() {
+        String strIP = properties.getProperty("cc.ip");
+        if (strIP == null) {
+            strIP = HYRACKS_IP;
+        }
+        return strIP;
+    }
+
+    public int getHyracksPort() {
+        String strPort = properties.getProperty("cc.port");
+        int port = HYRACKS_PORT;
+        if (strPort != null) {
+            port = Integer.parseInt(strPort);
+        }
+        return port;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java
new file mode 100644
index 0000000..79eb035
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class QueryAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("query");
+    }
+
+    protected List<Statement.Kind> getAllowedStatements() {
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.FUNCTION_DECL, Kind.QUERY, Kind.SET, Kind.WRITE };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-query statement %s to the query API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
new file mode 100644
index 0000000..c6708b3
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+public class QueryResultAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("text/html");
+        response.setCharacterEncoding("utf-8");
+        String strHandle = request.getParameter("handle");
+        PrintWriter out = response.getWriter();
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            HyracksProperties hp = new HyracksProperties();
+            String strIP = hp.getHyracksIPAddress();
+            int port = hp.getHyracksPort();
+
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+                if (hcc == null) {
+                    hcc = new HyracksConnection(strIP, port);
+                    context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+                }
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+            JSONObject handleObj = new JSONObject(strHandle);
+            JSONArray handle = handleObj.getJSONArray("handle");
+            JobId jobId = new JobId(handle.getLong(0));
+            ResultSetId rsId = new ResultSetId(handle.getLong(1));
+            ByteBuffer buffer = ByteBuffer.allocate(ResultReader.FRAME_SIZE);
+            ResultReader resultReader = new ResultReader(hcc, hds);
+            resultReader.open(jobId, rsId);
+            buffer.clear();
+            JSONObject jsonResponse = new JSONObject();
+            JSONArray results = new JSONArray();
+            while (resultReader.read(buffer) > 0) {
+                results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor()));
+            }
+            jsonResponse.put("results", results);
+            out.write(jsonResponse.toString());
+
+        } catch (Exception e) {
+            out.println(e.getMessage());
+            e.printStackTrace(out);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java
new file mode 100644
index 0000000..b1c1335
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+public class QueryStatusAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("text/html");
+        response.setCharacterEncoding("utf-8");
+        String strHandle = request.getParameter("handle");
+        PrintWriter out = response.getWriter();
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+            JSONObject handleObj = new JSONObject(strHandle);
+            JSONArray handle = handleObj.getJSONArray("handle");
+            JobId jobId = new JobId(handle.getLong(0));
+            ResultSetId rsId = new ResultSetId(handle.getLong(1));
+
+            /* TODO(madhusudancs): We need to find a way to JSON serialize default format obtained from
+             * metadataProvider in the AQLTranslator and store it as part of the result handle.
+             */
+            ResultReader resultReader = new ResultReader(hcc, hds);
+            resultReader.open(jobId, rsId);
+
+            JSONObject jsonResponse = new JSONObject();
+            String status;
+            switch (resultReader.getStatus()) {
+                case RUNNING:
+                    status = "RUNNING";
+                    break;
+                case FAILED:
+                    status = "ERROR";
+                    break;
+                case SUCCESS:
+                    status = "SUCCESS";
+                    break;
+                default:
+                    status = "ERROR";
+                    break;
+            }
+            jsonResponse.put("status", status);
+            out.write(jsonResponse.toString());
+
+        } catch (Exception e) {
+            out.println(e.getMessage());
+            e.printStackTrace(out);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
new file mode 100644
index 0000000..29feb5e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.List;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONObject;
+
+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.base.Statement.Kind;
+import edu.uci.ics.asterix.aql.parser.AQLParser;
+import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+abstract class RESTAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("application/json");
+        response.setCharacterEncoding("utf-8");
+
+        PrintWriter out = response.getWriter();
+
+        DisplayFormat format = DisplayFormat.HTML;
+
+        String contentType = request.getContentType();
+
+        if ((contentType == null) || (contentType.equals("text/plain"))) {
+            format = DisplayFormat.TEXT;
+        } else if (contentType.equals("application/json")) {
+            format = DisplayFormat.JSON;
+        }
+
+        String query = getQueryParameter(request);
+        boolean asyncResults = isAsync(request);
+
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+
+            AQLParser parser = new AQLParser(query);
+            List<Statement> aqlStatements = parser.Statement();
+            if (checkForbiddenStatements(aqlStatements, out)) {
+                return;
+            }
+            SessionConfig sessionConfig = new SessionConfig(true, false, false, false, false, false, true, false);
+
+            MetadataManager.INSTANCE.init();
+
+            AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, out, sessionConfig, format);
+
+            aqlTranslator.compileAndExecute(hcc, hds, asyncResults);
+
+        } catch (ParseException pe) {
+            StringBuilder errorMessage = new StringBuilder();
+            String message = pe.getMessage();
+            message = message.replace("<", "&lt");
+            message = message.replace(">", "&gt");
+            errorMessage.append("SyntaxError:" + message + "\n");
+            int pos = message.indexOf("line");
+            if (pos > 0) {
+                int columnPos = message.indexOf(",", pos + 1 + "line".length());
+                int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
+                String line = query.split("\n")[lineNo - 1];
+                errorMessage.append("==> " + line + "\n");
+            }
+            JSONObject errorResp = ResultUtils.getErrorResponse(2, errorMessage.toString());
+            out.write(errorResp.toString());
+        } catch (Exception e) {
+            StringBuilder errorMessage = new StringBuilder();
+            errorMessage.append(e.getMessage());
+            JSONObject errorResp = ResultUtils.getErrorResponse(99, errorMessage.toString());
+            out.write(errorResp.toString());
+        }
+    }
+
+    private boolean checkForbiddenStatements(List<Statement> aqlStatements, PrintWriter out) {
+        for (Statement st : aqlStatements) {
+            if (!getAllowedStatements().contains(st.getKind())) {
+                JSONObject errorResp = ResultUtils.getErrorResponse(1, String.format(getErrorMessage(), st.getKind()));
+                out.write(errorResp.toString());
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected boolean isAsync(HttpServletRequest request) {
+        String mode = request.getParameter("mode");
+        boolean asyncResults = false;
+        if (mode != null && mode.equals("asynchronous")) {
+            asyncResults = true;
+        }
+        return asyncResults;
+    }
+
+    protected abstract String getQueryParameter(HttpServletRequest request);
+
+    protected abstract List<Kind> getAllowedStatements();
+
+    protected abstract String getErrorMessage();
+}
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
new file mode 100644
index 0000000..43767a0
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2011 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.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class UpdateAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("statements");
+    }
+
+    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.WRITE_FROM_QUERY_RESULT, Kind.BEGIN_FEED,
+                Kind.CONTROL_FEED };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-Update statement %s to the Update API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
index 870df8d..cb786d7 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
@@ -2,24 +2,18 @@
 
 import java.io.PrintWriter;
 import java.io.Reader;
-import java.rmi.RemoteException;
-
-import org.json.JSONException;
+import java.util.List;
 
 import edu.uci.ics.asterix.api.common.APIFramework;
 import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
 import edu.uci.ics.asterix.api.common.Job;
 import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 
@@ -47,41 +41,32 @@
 
     public void compile(boolean optimize, boolean printRewrittenExpressions, boolean printLogicalPlan,
             boolean printOptimizedPlan, boolean printPhysicalOpsOnly, boolean generateBinaryRuntime, boolean printJob)
-            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
+            throws Exception {
         queryJobSpec = null;
         dmlJobs = null;
 
         if (queryText == null) {
             return;
         }
-        AQLParser parser = new AQLParser(queryText);
-        Query q;
+        int ch;
+        StringBuilder builder = new StringBuilder();
+        while ((ch = queryText.read()) != -1) {
+            builder.append((char) ch);
+        }
+        AQLParser parser = new AQLParser(builder.toString());
+        List<Statement> aqlStatements;
         try {
-            q = (Query) parser.Statement();
+            aqlStatements = parser.Statement();
         } catch (ParseException pe) {
             throw new AsterixException(pe);
         }
         MetadataManager.INSTANCE.init();
 
-        SessionConfig pc = new SessionConfig(AsterixHyracksIntegrationUtil.DEFAULT_HYRACKS_CC_CLIENT_PORT, optimize,
-                false, printRewrittenExpressions, printLogicalPlan, printOptimizedPlan, printPhysicalOpsOnly, printJob);
-        pc.setGenerateJobSpec(generateBinaryRuntime);
+        SessionConfig pc = new SessionConfig(optimize, false, printRewrittenExpressions, printLogicalPlan,
+                printOptimizedPlan, printPhysicalOpsOnly, generateBinaryRuntime, printJob);
 
-        String dataverseName = null;
-        if (q != null) {
-            dataverseName = APIFramework.compileDdlStatements(hcc, q, writer, pc, DisplayFormat.TEXT);
-            dmlJobs = APIFramework.compileDmlStatements(dataverseName, q, writer, pc, DisplayFormat.TEXT);
-        }
-
-        if (q.isDummyQuery()) {
-            return;
-        }
-
-        Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                dataverseName, q, parser.getVarCounter(), null, null, pc, writer, DisplayFormat.TEXT, null);
-        if (metadataAndSpec != null) {
-            queryJobSpec = metadataAndSpec.second;
-        }
+        AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, writer, pc, DisplayFormat.TEXT);
+        aqlTranslator.compileAndExecute(hcc, null, false);
         writer.flush();
     }
 
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
new file mode 100644
index 0000000..976ec7c
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -0,0 +1,1475 @@
+/*
+ * 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.aql.translator;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+import java.rmi.RemoteException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.api.common.APIFramework;
+import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
+import edu.uci.ics.asterix.api.common.Job;
+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.CreateDataverseStatement;
+import edu.uci.ics.asterix.aql.expression.CreateFunctionStatement;
+import edu.uci.ics.asterix.aql.expression.CreateIndexStatement;
+import edu.uci.ics.asterix.aql.expression.DatasetDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
+import edu.uci.ics.asterix.aql.expression.DeleteStatement;
+import edu.uci.ics.asterix.aql.expression.DropStatement;
+import edu.uci.ics.asterix.aql.expression.ExternalDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.FeedDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.FunctionDecl;
+import edu.uci.ics.asterix.aql.expression.FunctionDropStatement;
+import edu.uci.ics.asterix.aql.expression.Identifier;
+import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
+import edu.uci.ics.asterix.aql.expression.InsertStatement;
+import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.LoadFromFileStatement;
+import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
+import edu.uci.ics.asterix.aql.expression.NodegroupDecl;
+import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.expression.SetStatement;
+import edu.uci.ics.asterix.aql.expression.TypeDecl;
+import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
+import edu.uci.ics.asterix.aql.expression.WriteFromQueryResultStatement;
+import edu.uci.ics.asterix.aql.expression.WriteStatement;
+import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.file.DatasetOperations;
+import edu.uci.ics.asterix.file.FeedOperations;
+import edu.uci.ics.asterix.file.IndexOperations;
+import edu.uci.ics.asterix.formats.base.IDataFormat;
+import edu.uci.ics.asterix.metadata.IDatasetDetails;
+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.IMetadataEntity;
+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.FeedDatasetDetails;
+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.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeSignature;
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
+import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledBeginFeedStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledControlFeedStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDatasetDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDeleteStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledIndexDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledInsertStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledWriteFromQueryResultStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.asterix.translator.TypeTranslator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IResultSerializerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.serializer.ResultSerializerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
+
+/*
+ * Provides functionality for executing a batch of AQL statements (queries included)
+ * sequentially.
+ */
+public class AqlTranslator extends AbstractAqlTranslator {
+
+    private final List<Statement> aqlStatements;
+    private final PrintWriter out;
+    private final SessionConfig sessionConfig;
+    private final DisplayFormat pdf;
+    private Dataverse activeDefaultDataverse;
+    private List<FunctionDecl> declaredFunctions;
+
+    public AqlTranslator(List<Statement> aqlStatements, PrintWriter out, SessionConfig pc, DisplayFormat pdf)
+            throws MetadataException, AsterixException {
+        this.aqlStatements = aqlStatements;
+        this.out = out;
+        this.sessionConfig = pc;
+        this.pdf = pdf;
+        declaredFunctions = getDeclaredFunctions(aqlStatements);
+    }
+
+    private List<FunctionDecl> getDeclaredFunctions(List<Statement> statements) {
+        List<FunctionDecl> functionDecls = new ArrayList<FunctionDecl>();
+        for (Statement st : statements) {
+            if (st.getKind().equals(Statement.Kind.FUNCTION_DECL)) {
+                functionDecls.add((FunctionDecl) st);
+            }
+        }
+        return functionDecls;
+    }
+
+    /**
+     * Compiles and submits for execution a list of AQL statements.
+     * 
+     * @param hcc
+     *            A Hyracks client connection that is used to submit a jobspec to Hyracks.
+     * @param hdc
+     *            A Hyracks dataset client object that is used to read the results.
+     * @param asyncResults
+     *            True if the results should be read asynchronously or false if we should wait for results to be read.
+     * @return A List<QueryResult> containing a QueryResult instance corresponding to each submitted query.
+     * @throws Exception
+     */
+    public List<QueryResult> compileAndExecute(IHyracksClientConnection hcc, IHyracksDataset hdc, boolean asyncResults)
+            throws Exception {
+        int resultSetIdCounter = 0;
+        List<QueryResult> executionResult = new ArrayList<QueryResult>();
+        FileSplit outputFile = null;
+        IAWriterFactory writerFactory = PrinterBasedWriterFactory.INSTANCE;
+        IResultSerializerFactoryProvider resultSerializerFactoryProvider = ResultSerializerFactoryProvider.INSTANCE;
+        Map<String, String> config = new HashMap<String, String>();
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+
+        for (Statement stmt : aqlStatements) {
+            validateOperation(activeDefaultDataverse, stmt);
+            AqlMetadataProvider metadataProvider = new AqlMetadataProvider(activeDefaultDataverse);
+            metadataProvider.setWriterFactory(writerFactory);
+            metadataProvider.setResultSerializerFactoryProvider(resultSerializerFactoryProvider);
+            metadataProvider.setOutputFile(outputFile);
+            metadataProvider.setConfig(config);
+            jobsToExecute.clear();
+            try {
+                switch (stmt.getKind()) {
+                    case SET: {
+                        handleSetStatement(metadataProvider, stmt, config);
+                        break;
+                    }
+                    case DATAVERSE_DECL: {
+                        activeDefaultDataverse = handleUseDataverseStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case CREATE_DATAVERSE: {
+                        handleCreateDataverseStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case DATASET_DECL: {
+                        handleCreateDatasetStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case CREATE_INDEX: {
+                        handleCreateIndexStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case TYPE_DECL: {
+                        handleCreateTypeStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case NODEGROUP_DECL: {
+                        handleCreateNodeGroupStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case DATAVERSE_DROP: {
+                        handleDataverseDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case DATASET_DROP: {
+                        handleDatasetDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case INDEX_DROP: {
+                        handleIndexDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case TYPE_DROP: {
+                        handleTypeDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case NODEGROUP_DROP: {
+                        handleNodegroupDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case CREATE_FUNCTION: {
+                        handleCreateFunctionStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case FUNCTION_DROP: {
+                        handleFunctionDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case LOAD_FROM_FILE: {
+                        handleLoadFromFileStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case WRITE_FROM_QUERY_RESULT: {
+                        handleWriteFromQueryResultStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case INSERT: {
+                        handleInsertStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case DELETE: {
+                        handleDeleteStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case BEGIN_FEED: {
+                        handleBeginFeedStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case CONTROL_FEED: {
+                        handleControlFeedStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case QUERY: {
+                        metadataProvider.setResultSetId(new ResultSetId(resultSetIdCounter++));
+                        executionResult.add(handleQuery(metadataProvider, (Query) stmt, hcc, hdc, asyncResults));
+                        break;
+                    }
+
+                    case WRITE: {
+                        Pair<IAWriterFactory, FileSplit> result = handleWriteStatement(metadataProvider, stmt);
+                        if (result.first != null) {
+                            writerFactory = result.first;
+                        }
+                        outputFile = result.second;
+                        break;
+                    }
+
+                }
+            } catch (Exception e) {
+                throw new AlgebricksException(e);
+            }
+        }
+        return executionResult;
+    }
+
+    private void handleSetStatement(AqlMetadataProvider metadataProvider, Statement stmt, Map<String, String> config)
+            throws RemoteException, ACIDException {
+        SetStatement ss = (SetStatement) stmt;
+        String pname = ss.getPropName();
+        String pvalue = ss.getPropValue();
+        config.put(pname, pvalue);
+    }
+
+    private Pair<IAWriterFactory, FileSplit> handleWriteStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws InstantiationException, IllegalAccessException, ClassNotFoundException {
+        WriteStatement ws = (WriteStatement) stmt;
+        File f = new File(ws.getFileName());
+        FileSplit outputFile = new FileSplit(ws.getNcName().getValue(), new FileReference(f));
+        IAWriterFactory writerFactory = null;
+        if (ws.getWriterClassName() != null) {
+            writerFactory = (IAWriterFactory) Class.forName(ws.getWriterClassName()).newInstance();
+        }
+        return new Pair<IAWriterFactory, FileSplit>(writerFactory, outputFile);
+    }
+
+    private Dataverse handleUseDataverseStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            DataverseDecl dvd = (DataverseDecl) stmt;
+            String dvName = dvd.getDataverseName().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+            if (dv == null) {
+                throw new MetadataException("Unknown dataverse " + dvName);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            return dv;
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new MetadataException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleCreateDataverseStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
+            String dvName = stmtCreateDataverse.getDataverseName().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+            if (dv != null && !stmtCreateDataverse.getIfNotExists()) {
+                throw new AlgebricksException("A dataverse with this name " + dvName + " already exists.");
+            }
+            MetadataManager.INSTANCE.addDataverse(metadataProvider.getMetadataTxnContext(), new Dataverse(dvName,
+                    stmtCreateDataverse.getFormat(), IMetadataEntity.PENDING_NO_OP));
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateDatasetStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws AsterixException, Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        try {
+            DatasetDecl dd = (DatasetDecl) stmt;
+            dataverseName = dd.getDataverse() != null ? dd.getDataverse().getValue()
+                    : activeDefaultDataverse != null ? activeDefaultDataverse.getDataverseName() : null;
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = dd.getName().getValue();
+
+            DatasetType dsType = dd.getDatasetType();
+            String itemTypeName = dd.getItemTypeName().getValue();
+
+            IDatasetDetails datasetDetails = null;
+            Dataset ds = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName);
+            if (ds != null) {
+                if (dd.getIfNotExists()) {
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    return;
+                } else {
+                    throw new AlgebricksException("A dataset with this name " + datasetName + " already exists.");
+                }
+            }
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    itemTypeName);
+            if (dt == null) {
+                throw new AlgebricksException(": type " + itemTypeName + " could not be found.");
+            }
+            switch (dd.getDatasetType()) {
+                case INTERNAL: {
+                    IAType itemType = dt.getDatatype();
+                    if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                        throw new AlgebricksException("Can only partition ARecord's.");
+                    }
+                    List<String> partitioningExprs = ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
+                            .getPartitioningExprs();
+                    String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
+                            InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
+                            ngName);
+                    break;
+                }
+                case EXTERNAL: {
+                    String adapter = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getAdapter();
+                    Map<String, String> properties = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getProperties();
+                    datasetDetails = new ExternalDatasetDetails(adapter, properties);
+                    break;
+                }
+                case FEED: {
+                    IAType itemType = dt.getDatatype();
+                    if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                        throw new AlgebricksException("Can only partition ARecord's.");
+                    }
+                    List<String> partitioningExprs = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                            .getPartitioningExprs();
+                    String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    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());
+                    break;
+                }
+            }
+
+            //#. add a new dataset with PendingAddOp
+            Dataset dataset = new Dataset(dataverseName, datasetName, itemTypeName, datasetDetails, dd.getHints(),
+                    dsType, DatasetIdFactory.generateDatasetId(), IMetadataEntity.PENDING_ADD_OP);
+            MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), dataset);
+
+            if (dd.getDatasetType() == DatasetType.INTERNAL || dd.getDatasetType() == DatasetType.FEED) {
+                Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(),
+                        dataverseName);
+                JobSpecification jobSpec = DatasetOperations.createDatasetJobSpec(dataverse, datasetName,
+                        metadataProvider);
+
+                //#. make metadataTxn commit before calling runJob.
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                //#. runJob
+                runJob(hcc, jobSpec, true);
+
+                //#. begin new metadataTxn
+                mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                bActiveTxn = true;
+                metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            }
+
+            //#. add a new dataset with PendingNoOp after deleting the dataset with PendingAddOp
+            MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName, datasetName);
+            MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), new Dataset(dataverseName,
+                    datasetName, itemTypeName, datasetDetails, dd.getHints(), dsType, dataset.getDatasetId(),
+                    IMetadataEntity.PENDING_NO_OP));
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the index in NC
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dataverseName, datasetName);
+            try {
+                JobSpecification jobSpec = DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                runJob(hcc, jobSpec, true);
+            } catch (Exception e3) {
+                if (bActiveTxn) {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                }
+                //do no throw exception since still the metadata needs to be compensated. 
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateIndexStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        String indexName = null;
+        try {
+            CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
+            dataverseName = stmtCreateIndex.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtCreateIndex.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = stmtCreateIndex.getDatasetName().getValue();
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName);
+            if (ds == null) {
+                throw new AlgebricksException("There is no dataset with this name " + datasetName + " in dataverse "
+                        + dataverseName);
+            }
+
+            indexName = stmtCreateIndex.getIndexName().getValue();
+            Index idx = MetadataManager.INSTANCE.getIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName, indexName);
+
+            if (idx != null) {
+                if (!stmtCreateIndex.getIfNotExists()) {
+                    throw new AlgebricksException("An index with this name " + indexName + " already exists.");
+                } else {
+                    stmtCreateIndex.setNeedToCreate(false);
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    return;
+                }
+            }
+
+            //#. add a new index with PendingAddOp
+            Index index = new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
+                    stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false,
+                    IMetadataEntity.PENDING_ADD_OP);
+            MetadataManager.INSTANCE.addIndex(metadataProvider.getMetadataTxnContext(), index);
+
+            //#. create the index artifact in NC.
+            CompiledCreateIndexStatement cis = new CompiledCreateIndexStatement(index.getIndexName(), dataverseName,
+                    index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(), index.getIndexType());
+            JobSpecification spec = IndexOperations.buildSecondaryIndexCreationJobSpec(cis, metadataProvider);
+            if (spec == null) {
+                throw new AsterixException("Failed to create job spec for creating index '"
+                        + stmtCreateIndex.getDatasetName() + "." + stmtCreateIndex.getIndexName() + "'");
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, spec, true);
+
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. load data into the index in NC.
+            cis = new CompiledCreateIndexStatement(index.getIndexName(), dataverseName, index.getDatasetName(),
+                    index.getKeyFieldNames(), index.getGramLength(), index.getIndexType());
+            spec = IndexOperations.buildSecondaryIndexLoadingJobSpec(cis, metadataProvider);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, spec, true);
+
+            //#. begin new metadataTxn
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. add another new index with PendingNoOp after deleting the index with PendingAddOp
+            MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName, datasetName,
+                    indexName);
+            index = new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
+                    stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false,
+                    IMetadataEntity.PENDING_NO_OP);
+            MetadataManager.INSTANCE.addIndex(metadataProvider.getMetadataTxnContext(), index);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the index in NC
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName, indexName);
+            try {
+                JobSpecification jobSpec = IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                runJob(hcc, jobSpec, true);
+            } catch (Exception e3) {
+                if (bActiveTxn) {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                }
+                //do no throw exception since still the metadata needs to be compensated. 
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName, indexName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateTypeStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, RemoteException, ACIDException, MetadataException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            TypeDecl stmtCreateType = (TypeDecl) stmt;
+            String dataverseName = stmtCreateType.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtCreateType.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            String typeName = stmtCreateType.getIdent().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+            if (dv == null) {
+                throw new AlgebricksException("Unknonw dataverse " + dataverseName);
+            }
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
+            if (dt != null) {
+                if (!stmtCreateType.getIfNotExists()) {
+                    throw new AlgebricksException("A datatype with this name " + typeName + " already exists.");
+                }
+            } else {
+                if (builtinTypeMap.get(typeName) != null) {
+                    throw new AlgebricksException("Cannot redefine builtin type " + typeName + ".");
+                } else {
+                    Map<TypeSignature, IAType> typeMap = TypeTranslator.computeTypes(mdTxnCtx, (TypeDecl) stmt,
+                            dataverseName);
+                    TypeSignature typeSignature = new TypeSignature(dataverseName, typeName);
+                    IAType type = typeMap.get(typeSignature);
+                    MetadataManager.INSTANCE.addDatatype(mdTxnCtx, new Datatype(dataverseName, typeName, type, false));
+                }
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleDataverseDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dvName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
+            dvName = stmtDelete.getDataverseName().getValue();
+
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
+            if (dv == null) {
+                if (!stmtDelete.getIfExists()) {
+                    throw new AlgebricksException("There is no dataverse with this name " + dvName + ".");
+                }
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                return;
+            }
+
+            //#. prepare jobs which will drop corresponding datasets with indexes. 
+            List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dvName);
+            for (int j = 0; j < datasets.size(); j++) {
+                String datasetName = datasets.get(j).getDatasetName();
+                DatasetType dsType = datasets.get(j).getDatasetType();
+                if (dsType == DatasetType.INTERNAL || dsType == DatasetType.FEED) {
+
+                    List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dvName, datasetName);
+                    for (int k = 0; k < indexes.size(); k++) {
+                        if (indexes.get(k).isSecondaryIndex()) {
+                            CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dvName, datasetName,
+                                    indexes.get(k).getIndexName());
+                            jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+                        }
+                    }
+
+                    CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dvName, datasetName);
+                    jobsToExecute.add(DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider));
+                }
+            }
+
+            //#. mark PendingDropOp on the dataverse record by 
+            //   first, deleting the dataverse record from the DATAVERSE_DATASET
+            //   second, inserting the dataverse record with the PendingDropOp value into the DATAVERSE_DATASET
+            MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
+            MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dvName, dv.getDataFormat(),
+                    IMetadataEntity.PENDING_DROP_OP));
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. finally, delete the dataverse.
+            MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
+            if (activeDefaultDataverse != null && activeDefaultDataverse.getDataverseName() == dvName) {
+                activeDefaultDataverse = null;
+            }
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleDatasetDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            DropStatement stmtDelete = (DropStatement) stmt;
+            dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = stmtDelete.getDatasetName().getValue();
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            if (ds == null) {
+                if (!stmtDelete.getIfExists()) {
+                    throw new AlgebricksException("There is no dataset with this name " + datasetName
+                            + " in dataverse " + dataverseName + ".");
+                }
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                return;
+            }
+
+            if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+
+                //#. prepare jobs to drop the datatset and the indexes in NC
+                List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
+                for (int j = 0; j < indexes.size(); j++) {
+                    if (indexes.get(j).isSecondaryIndex()) {
+                        CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName,
+                                indexes.get(j).getIndexName());
+                        jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+                    }
+                }
+                CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dataverseName, datasetName);
+                jobsToExecute.add(DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider));
+
+                //#. mark the existing dataset as PendingDropOp
+                MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+                MetadataManager.INSTANCE.addDataset(
+                        mdTxnCtx,
+                        new Dataset(dataverseName, datasetName, ds.getItemTypeName(), ds.getDatasetDetails(), ds
+                                .getHints(), ds.getDatasetType(), ds.getDatasetId(), IMetadataEntity.PENDING_DROP_OP));
+
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                //#. run the jobs
+                for (JobSpecification jobSpec : jobsToExecute) {
+                    runJob(hcc, jobSpec, true);
+                }
+
+                mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                bActiveTxn = true;
+                metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            }
+
+            //#. finally, delete the dataset.
+            MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleIndexDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        String indexName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            IndexDropStatement stmtIndexDrop = (IndexDropStatement) stmt;
+            datasetName = stmtIndexDrop.getDatasetName().getValue();
+            dataverseName = stmtIndexDrop.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtIndexDrop.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            if (ds == null) {
+                throw new AlgebricksException("There is no dataset with this name " + datasetName + " in dataverse "
+                        + dataverseName);
+            }
+
+            if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+                indexName = stmtIndexDrop.getIndexName().getValue();
+                Index index = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                if (index == null) {
+                    if (!stmtIndexDrop.getIfExists()) {
+                        throw new AlgebricksException("There is no index with this name " + indexName + ".");
+                    }
+                } else {
+                    //#. prepare a job to drop the index in NC.
+                    CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName,
+                            indexName);
+                    jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+
+                    //#. mark PendingDropOp on the existing index
+                    MetadataManager.INSTANCE.dropIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                    MetadataManager.INSTANCE.addIndex(
+                            mdTxnCtx,
+                            new Index(dataverseName, datasetName, indexName, index.getIndexType(), index
+                                    .getKeyFieldNames(), index.isPrimaryIndex(), IMetadataEntity.PENDING_DROP_OP));
+
+                    //#. commit the existing transaction before calling runJob. 
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    bActiveTxn = false;
+
+                    for (JobSpecification jobSpec : jobsToExecute) {
+                        runJob(hcc, jobSpec, true);
+                    }
+
+                    //#. begin a new transaction
+                    mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                    bActiveTxn = true;
+                    metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+                    //#. finally, delete the existing index
+                    MetadataManager.INSTANCE.dropIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                }
+            } else {
+                throw new AlgebricksException(datasetName
+                        + " is an external dataset. Indexes are not maintained for external datasets.");
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName, indexName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleTypeDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, MetadataException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            TypeDropStatement stmtTypeDrop = (TypeDropStatement) stmt;
+            String dataverseName = stmtTypeDrop.getDataverseName() == null ? (activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName()) : stmtTypeDrop.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            String typeName = stmtTypeDrop.getTypeName().getValue();
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
+            if (dt == null) {
+                if (!stmtTypeDrop.getIfExists())
+                    throw new AlgebricksException("There is no datatype with this name " + typeName + ".");
+            } else {
+                MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, dataverseName, typeName);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleNodegroupDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
+            String nodegroupName = stmtDelete.getNodeGroupName().getValue();
+            NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodegroupName);
+            if (ng == null) {
+                if (!stmtDelete.getIfExists())
+                    throw new AlgebricksException("There is no nodegroup with this name " + nodegroupName + ".");
+            } else {
+                MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, nodegroupName);
+            }
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateFunctionStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, MetadataException, RemoteException, ACIDException {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
+            String dataverse = cfs.getSignature().getNamespace() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : cfs.getSignature().getNamespace();
+            if (dataverse == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverse);
+            if (dv == null) {
+                throw new AlgebricksException("There is no dataverse with this name " + dataverse + ".");
+            }
+            Function function = new Function(dataverse, cfs.getaAterixFunction().getName(), cfs.getaAterixFunction()
+                    .getArity(), cfs.getParamList(), Function.RETURNTYPE_VOID, cfs.getFunctionBody(),
+                    Function.LANGUAGE_AQL, FunctionKind.SCALAR.toString());
+            MetadataManager.INSTANCE.addFunction(mdTxnCtx, function);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleFunctionDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, RemoteException, ACIDException, AlgebricksException {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
+            FunctionSignature signature = stmtDropFunction.getFunctionSignature();
+            Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
+            if (function == null) {
+                if (!stmtDropFunction.getIfExists())
+                    throw new AlgebricksException("Unknonw function " + signature);
+            } else {
+                MetadataManager.INSTANCE.dropFunction(mdTxnCtx, signature);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleLoadFromFileStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            LoadFromFileStatement loadStmt = (LoadFromFileStatement) stmt;
+            String dataverseName = loadStmt.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : loadStmt.getDataverseName().getValue();
+            CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(dataverseName, loadStmt
+                    .getDatasetName().getValue(), loadStmt.getAdapter(), loadStmt.getProperties(),
+                    loadStmt.dataIsAlreadySorted());
+
+            IDataFormat format = getDataFormat(metadataProvider.getMetadataTxnContext(), dataverseName);
+            Job job = DatasetOperations.createLoadDatasetJobSpec(metadataProvider, cls, format);
+            jobsToExecute.add(job.getJobSpec());
+            // Also load the dataset's secondary indexes.
+            List<Index> datasetIndexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, loadStmt
+                    .getDatasetName().getValue());
+            for (Index index : datasetIndexes) {
+                if (!index.isSecondaryIndex()) {
+                    continue;
+                }
+                // Create CompiledCreateIndexStatement from metadata entity 'index'.
+                CompiledCreateIndexStatement cis = new CompiledCreateIndexStatement(index.getIndexName(),
+                        dataverseName, index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(),
+                        index.getIndexType());
+                jobsToExecute.add(IndexOperations.buildSecondaryIndexLoadingJobSpec(cis, metadataProvider));
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            for (JobSpecification jobspec : jobsToExecute) {
+                runJob(hcc, jobspec, true);
+            }
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleWriteFromQueryResultStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            WriteFromQueryResultStatement st1 = (WriteFromQueryResultStatement) stmt;
+            String dataverseName = st1.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : st1.getDataverseName().getValue();
+            CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(dataverseName, st1
+                    .getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
+
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleInsertStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            InsertStatement stmtInsert = (InsertStatement) stmt;
+            String dataverseName = stmtInsert.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtInsert.getDataverseName().getValue();
+            CompiledInsertStatement clfrqs = new CompiledInsertStatement(dataverseName, stmtInsert.getDatasetName()
+                    .getValue(), stmtInsert.getQuery(), stmtInsert.getVarCounter());
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleDeleteStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            DeleteStatement stmtDelete = (DeleteStatement) stmt;
+            String dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
+            CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(stmtDelete.getVariableExpr(), dataverseName,
+                    stmtDelete.getDatasetName().getValue(), stmtDelete.getCondition(), stmtDelete.getDieClause(),
+                    stmtDelete.getVarCounter(), metadataProvider);
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private JobSpecification rewriteCompileQuery(AqlMetadataProvider metadataProvider, Query query,
+            ICompiledDmlStatement stmt) throws AsterixException, RemoteException, AlgebricksException, JSONException,
+            ACIDException {
+
+        // Query Rewriting (happens under the same ongoing metadata transaction)
+        Pair<Query, Integer> reWrittenQuery = APIFramework.reWriteQuery(declaredFunctions, metadataProvider, query,
+                sessionConfig, out, pdf);
+
+        // Query Compilation (happens under the same ongoing metadata
+        // transaction)
+        JobSpecification spec = APIFramework.compileQuery(declaredFunctions, metadataProvider, query,
+                reWrittenQuery.second, stmt == null ? null : stmt.getDatasetName(), sessionConfig, out, pdf, stmt);
+
+        return spec;
+
+    }
+
+    private void handleBeginFeedStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            BeginFeedStatement bfs = (BeginFeedStatement) stmt;
+            String dataverseName = bfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : bfs.getDataverseName().getValue();
+
+            CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(dataverseName, bfs.getDatasetName()
+                    .getValue(), bfs.getQuery(), bfs.getVarCounter());
+
+            Dataset dataset;
+            dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName, bfs
+                    .getDatasetName().getValue());
+            if (dataset == null) {
+                throw new AsterixException("Unknown dataset :" + bfs.getDatasetName().getValue());
+            }
+            IDatasetDetails datasetDetails = dataset.getDatasetDetails();
+            if (datasetDetails.getDatasetType() != DatasetType.FEED) {
+                throw new IllegalArgumentException("Dataset " + bfs.getDatasetName().getValue()
+                        + " is not a feed dataset");
+            }
+            bfs.initialize(metadataProvider.getMetadataTxnContext(), dataset);
+            cbfs.setQuery(bfs.getQuery());
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, bfs.getQuery(), cbfs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleControlFeedStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            ControlFeedStatement cfs = (ControlFeedStatement) stmt;
+            String dataverseName = cfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : cfs.getDatasetName().getValue();
+            CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(),
+                    dataverseName, cfs.getDatasetName().getValue(), cfs.getAlterAdapterConfParams());
+            JobSpecification jobSpec = FeedOperations.buildControlFeedJobSpec(clcfs, metadataProvider);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, jobSpec, true);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private QueryResult handleQuery(AqlMetadataProvider metadataProvider, Query query, IHyracksClientConnection hcc,
+            IHyracksDataset hdc, boolean asyncResults) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, query, null);
+
+            QueryResult queryResult = new QueryResult(query, metadataProvider.getResultSetId());
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                GlobalConfig.ASTERIX_LOGGER.info(compiled.toJSON().toString(1));
+                JobId jobId = runJob(hcc, compiled, false);
+
+                JSONObject response = new JSONObject();
+                if (asyncResults) {
+                    JSONArray handle = new JSONArray();
+                    handle.put(jobId.getId());
+                    handle.put(metadataProvider.getResultSetId().getId());
+                    response.put("handle", handle);
+                } else {
+                    ByteBuffer buffer = ByteBuffer.allocate(ResultReader.FRAME_SIZE);
+                    ResultReader resultReader = new ResultReader(hcc, hdc);
+                    resultReader.open(jobId, metadataProvider.getResultSetId());
+                    buffer.clear();
+                    JSONArray results = new JSONArray();
+                    while (resultReader.read(buffer) > 0) {
+                        results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor()));
+                        buffer.clear();
+                    }
+                    response.put("results", results);
+                }
+                switch (pdf) {
+                    case HTML:
+                        out.println("<pre>");
+                        ResultUtils.prettyPrintHTML(out, response);
+                        out.println("</pre>");
+                        break;
+                    case TEXT:
+                    case JSON:
+                        out.print(response);
+                        break;
+                }
+                hcc.waitForCompletion(jobId);
+            }
+
+            return queryResult;
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleCreateNodeGroupStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
+            String ngName = stmtCreateNodegroup.getNodegroupName().getValue();
+            NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, ngName);
+            if (ng != null) {
+                if (!stmtCreateNodegroup.getIfNotExists())
+                    throw new AlgebricksException("A nodegroup with this name " + ngName + " already exists.");
+            } else {
+                List<Identifier> ncIdentifiers = stmtCreateNodegroup.getNodeControllerNames();
+                List<String> ncNames = new ArrayList<String>(ncIdentifiers.size());
+                for (Identifier id : ncIdentifiers) {
+                    ncNames.add(id.getValue());
+                }
+                MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(ngName, ncNames));
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private JobId runJob(IHyracksClientConnection hcc, JobSpecification spec, boolean waitForCompletion)
+            throws Exception {
+        JobId[] jobIds = executeJobArray(hcc, new Job[] { new Job(spec) }, out, pdf, waitForCompletion);
+        return jobIds[0];
+    }
+
+    public JobId[] executeJobArray(IHyracksClientConnection hcc, Job[] jobs, PrintWriter out, DisplayFormat pdf,
+            boolean waitForCompletion) throws Exception {
+        JobId[] startedJobIds = new JobId[jobs.length];
+        for (int i = 0; i < jobs.length; i++) {
+            JobSpecification spec = jobs[i].getJobSpec();
+            spec.setMaxReattempts(0);
+            JobId jobId = hcc.startJob(spec);
+            startedJobIds[i] = jobId;
+            if (waitForCompletion) {
+                hcc.waitForCompletion(jobId);
+            }
+        }
+        return startedJobIds;
+    }
+
+    private static IDataFormat getDataFormat(MetadataTransactionContext mdTxnCtx, String dataverseName)
+            throws AsterixException {
+        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return format;
+    }
+
+    private void acquireWriteLatch() {
+        MetadataManager.INSTANCE.acquireWriteLatch();
+    }
+
+    private void releaseWriteLatch() {
+        MetadataManager.INSTANCE.releaseWriteLatch();
+    }
+
+    private void acquireReadLatch() {
+        MetadataManager.INSTANCE.acquireReadLatch();
+    }
+
+    private void releaseReadLatch() {
+        MetadataManager.INSTANCE.releaseReadLatch();
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
deleted file mode 100644
index 9565dde..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
+++ /dev/null
@@ -1,1012 +0,0 @@
-/*
- * Copyright 2009-2011 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.aql.translator;
-
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.aql.base.Statement;
-import edu.uci.ics.asterix.aql.base.Statement.Kind;
-import edu.uci.ics.asterix.aql.expression.CreateDataverseStatement;
-import edu.uci.ics.asterix.aql.expression.CreateFunctionStatement;
-import edu.uci.ics.asterix.aql.expression.CreateIndexStatement;
-import edu.uci.ics.asterix.aql.expression.DatasetDecl;
-import edu.uci.ics.asterix.aql.expression.DataverseDecl;
-import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
-import edu.uci.ics.asterix.aql.expression.DropStatement;
-import edu.uci.ics.asterix.aql.expression.ExternalDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.FeedDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.FunctionDropStatement;
-import edu.uci.ics.asterix.aql.expression.Identifier;
-import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
-import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
-import edu.uci.ics.asterix.aql.expression.NodegroupDecl;
-import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.Query;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.TypeDecl;
-import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
-import edu.uci.ics.asterix.aql.expression.TypeExpression;
-import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
-import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition.RecordKind;
-import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.common.parse.IParseFileSplitsDecl;
-import edu.uci.ics.asterix.file.DatasetOperations;
-import edu.uci.ics.asterix.file.IndexOperations;
-import edu.uci.ics.asterix.metadata.IDatasetDetails;
-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.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
-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.FeedDatasetDetails;
-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.entities.AsterixBuiltinArtifactMap.ARTIFACT_KIND;
-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.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-
-public class DdlTranslator extends AbstractAqlTranslator {
-
-    private final MetadataTransactionContext mdTxnCtx;
-    private final List<Statement> aqlStatements;
-    private final PrintWriter out;
-    private final SessionConfig pc;
-    private final DisplayFormat pdf;
-    private AqlCompiledMetadataDeclarations compiledDeclarations;
-
-    private static Map<String, BuiltinType> builtinTypeMap;
-
-    public DdlTranslator(MetadataTransactionContext mdTxnCtx, List<Statement> aqlStatements, PrintWriter out,
-            SessionConfig pc, DisplayFormat pdf) {
-        this.mdTxnCtx = mdTxnCtx;
-        this.aqlStatements = aqlStatements;
-        this.out = out;
-        this.pc = pc;
-        this.pdf = pdf;
-        builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
-    }
-
-    public void translate(IHyracksClientConnection hcc, boolean disconnectFromDataverse) throws AlgebricksException {
-        try {
-            compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, true);
-            compileAndExecuteDDLstatements(hcc, mdTxnCtx, disconnectFromDataverse);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-    }
-
-    private void compileAndExecuteDDLstatements(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            boolean disconnectFromDataverse) throws Exception {
-        for (Statement stmt : aqlStatements) {
-            validateOperation(compiledDeclarations, stmt);
-            switch (stmt.getKind()) {
-            // connect statement
-                case DATAVERSE_DECL: {
-                    checkForDataverseConnection(false);
-                    DataverseDecl dvd = (DataverseDecl) stmt;
-                    String dataverseName = dvd.getDataverseName().getValue();
-                    compiledDeclarations.connectToDataverse(dataverseName);
-                    break;
-                }
-                // create statements
-                case CREATE_DATAVERSE: {
-                    checkForDataverseConnection(false);
-                    CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
-                    String dvName = stmtCreateDataverse.getDataverseName().getValue();
-                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
-                    if (dv != null) {
-                        if (!stmtCreateDataverse.getIfNotExists())
-                            throw new AlgebricksException("\nA dataverse with this name " + dvName + " already exists.");
-                    } else {
-                        MetadataManager.INSTANCE.addDataverse(mdTxnCtx,
-                                new Dataverse(dvName, stmtCreateDataverse.getFormat()));
-                    }
-                    break;
-                }
-                case DATASET_DECL: {
-                    checkForDataverseConnection(true);
-                    DatasetDecl dd = (DatasetDecl) stmt;
-                    String datasetName = dd.getName().getValue();
-                    DatasetType dsType = dd.getDatasetType();
-                    String itemTypeName = null;
-                    IDatasetDetails datasetDetails = null;
-
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds != null) {
-                        if (!dd.getIfNotExists())
-                            throw new AlgebricksException("\nA dataset with this name " + datasetName
-                                    + " already exists.");
-                    } else {
-                        itemTypeName = dd.getItemTypeName().getValue();
-                        Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), itemTypeName);
-                        if (dt == null)
-                            throw new AlgebricksException(": type " + itemTypeName + " could not be found.");
-
-                        switch (dd.getDatasetType()) {
-                            case INTERNAL: {
-                                IAType itemType = dt.getDatatype();
-                                if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                                    throw new AlgebricksException("Can only partition ARecord's.");
-                                }
-                                List<String> partitioningExprs = ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getPartitioningExprs();
-                                String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
-                                        .getValue();
-                                datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
-                                        InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
-                                        partitioningExprs, ngName);
-                            }
-                                break;
-                            case EXTERNAL: {
-                                String adapter = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getAdapter();
-                                Map<String, String> properties = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getProperties();
-                                datasetDetails = new ExternalDatasetDetails(adapter, properties);
-                            }
-                                break;
-                            case FEED: {
-                                IAType itemType = dt.getDatatype();
-                                if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                                    throw new AlgebricksException("Can only partition ARecord's.");
-                                }
-                                List<String> partitioningExprs = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getPartitioningExprs();
-                                String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
-                                        .getValue();
-                                String adapter = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getAdapterClassname();
-                                Map<String, String> properties = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getProperties();
-                                String functionIdentifier = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getFunctionIdentifier();
-                                datasetDetails = new FeedDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
-                                        InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
-                                        partitioningExprs, ngName, adapter, properties, functionIdentifier,
-                                        FeedDatasetDetails.FeedState.INACTIVE.toString());
-
-                            }
-                                break;
-                        }
-                        MetadataManager.INSTANCE.addDataset(mdTxnCtx,
-                                new Dataset(compiledDeclarations.getDataverseName(), datasetName, itemTypeName,
-                                        datasetDetails, dsType));
-
-                        // If the dataset is of type INTERNAL or FEED, Asterix
-                        // needs to create Tree indexes at all nodes
-                        // corresponding to the associated node group. This is
-                        // not required for external datasets as
-                        // the data for such a dataset is never persisted in
-                        // Asterix storage.
-                        if (dd.getDatasetType() == DatasetType.INTERNAL || dd.getDatasetType() == DatasetType.FEED) {
-                            compileDatasetInitializeStatement(hcc, mdTxnCtx.getTxnId(), datasetName);
-                        }
-                    }
-                    break;
-                }
-
-                case CREATE_INDEX: {
-                    checkForDataverseConnection(true);
-                    CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
-                    String datasetName = stmtCreateIndex.getDatasetName().getValue();
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null)
-                        throw new AlgebricksException("\nThere is no dataset with this name " + datasetName);
-                    String indexName = stmtCreateIndex.getIndexName().getValue();
-                    Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName, indexName);
-                    if (idx != null) {
-                        if (!stmtCreateIndex.getIfNotExists())
-                            throw new AlgebricksException("\nAn index with this name " + indexName + " already exists.");
-                        else
-                            stmtCreateIndex.setNeedToCreate(false);
-                    } else {
-                        MetadataManager.INSTANCE.addIndex(mdTxnCtx, new Index(compiledDeclarations.getDataverseName(),
-                                datasetName, indexName, stmtCreateIndex.getIndexType(),
-                                stmtCreateIndex.getFieldExprs(), false));
-                    }
-                    break;
-                }
-                case TYPE_DECL: {
-                    checkForDataverseConnection(true);
-                    TypeDecl stmtCreateType = (TypeDecl) stmt;
-                    String typeName = stmtCreateType.getIdent().getValue();
-                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), typeName);
-                    if (dt != null) {
-                        if (!stmtCreateType.getIfNotExists())
-                            throw new AlgebricksException("\nA datatype with this name " + typeName
-                                    + " already exists.");
-                    } else {
-                        if (builtinTypeMap.get(typeName) != null) {
-                            throw new AlgebricksException("Cannot redefine builtin type " + typeName + ".");
-                        } else {
-                            Map<String, IAType> typeMap = computeTypes(mdTxnCtx, (TypeDecl) stmt);
-                            IAType type = typeMap.get(typeName);
-                            MetadataManager.INSTANCE.addDatatype(mdTxnCtx,
-                                    new Datatype(compiledDeclarations.getDataverseName(), typeName, type, false));
-                        }
-                    }
-                    break;
-                }
-                case NODEGROUP_DECL: {
-                    NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
-                    String ngName = stmtCreateNodegroup.getNodegroupName().getValue();
-                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, ngName);
-                    if (ng != null) {
-                        if (!stmtCreateNodegroup.getIfNotExists())
-                            throw new AlgebricksException("\nA nodegroup with this name " + ngName + " already exists.");
-                    } else {
-                        List<Identifier> ncIdentifiers = stmtCreateNodegroup.getNodeControllerNames();
-                        List<String> ncNames = new ArrayList<String>(ncIdentifiers.size());
-                        for (Identifier id : ncIdentifiers) {
-                            ncNames.add(id.getValue());
-                        }
-                        MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(ngName, ncNames));
-                    }
-                    break;
-                }
-                // drop statements
-                case DATAVERSE_DROP: {
-                    DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
-                    String dvName = stmtDelete.getDataverseName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.DATAVERSE, dvName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop dataverse " + dvName
-                                + " (protected by system)");
-                    }
-
-                    if (compiledDeclarations.isConnectedToDataverse())
-                        compiledDeclarations.disconnectFromDataverse();
-                    checkForDataverseConnection(false);
-
-                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
-                    if (dv == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no dataverse with this name " + dvName + ".");
-                    } else {
-                        compiledDeclarations.connectToDataverse(dvName);
-                        List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dvName);
-                        for (int j = 0; j < datasets.size(); j++) {
-                            String datasetName = datasets.get(j).getDatasetName();
-                            DatasetType dsType = datasets.get(j).getType();
-                            if (dsType == DatasetType.INTERNAL || dsType == DatasetType.FEED) {
-                                List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dvName,
-                                        datasetName);
-                                for (int k = 0; k < indexes.size(); k++) {
-                                    if (indexes.get(k).isSecondaryIndex()) {
-                                        compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexes.get(k)
-                                                .getIndexName());
-                                    }
-                                }
-                            }
-                            compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-                        }
-                        MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
-                        if (compiledDeclarations.isConnectedToDataverse())
-                            compiledDeclarations.disconnectFromDataverse();
-                    }
-                    break;
-                }
-                case DATASET_DROP: {
-                    checkForDataverseConnection(true);
-                    DropStatement stmtDelete = (DropStatement) stmt;
-                    String datasetName = stmtDelete.getDatasetName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.DATASET, datasetName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop dataset " + datasetName
-                                + " (protected by system)");
-                    }
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no dataset with this name " + datasetName + ".");
-                    } else {
-                        if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-                            List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx,
-                                    compiledDeclarations.getDataverseName(), datasetName);
-                            for (int j = 0; j < indexes.size(); j++) {
-                                if (indexes.get(j).isPrimaryIndex()) {
-                                    compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexes.get(j).getIndexName());
-                                }
-                            }
-                        }
-                        compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-                    }
-                    break;
-                }
-                case INDEX_DROP: {
-                    checkForDataverseConnection(true);
-                    IndexDropStatement stmtDelete = (IndexDropStatement) stmt;
-                    String datasetName = stmtDelete.getDatasetName().getValue();
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null)
-                        throw new AlgebricksException("\nThere is no dataset with this name " + datasetName + ".");
-                    if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-                        String indexName = stmtDelete.getIndexName().getValue();
-                        Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), datasetName, indexName);
-                        if (idx == null) {
-                            if (!stmtDelete.getIfExists())
-                                throw new AlgebricksException("\nThere is no index with this name " + indexName + ".");
-                        } else
-                            compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexName);
-                    } else {
-                        throw new AlgebricksException(datasetName
-                                + " is an external dataset. Indexes are not maintained for external datasets.");
-                    }
-                    break;
-                }
-                case TYPE_DROP: {
-                    checkForDataverseConnection(true);
-                    TypeDropStatement stmtDelete = (TypeDropStatement) stmt;
-                    String typeName = stmtDelete.getTypeName().getValue();
-                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), typeName);
-                    if (dt == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no datatype with this name " + typeName + ".");
-                    } else
-                        MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                                typeName);
-                    break;
-                }
-                case NODEGROUP_DROP: {
-                    NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
-                    String nodegroupName = stmtDelete.getNodeGroupName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.NODEGROUP, nodegroupName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop nodegroup " + nodegroupName
-                                + " (protected by system)");
-                    }
-                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodegroupName);
-                    if (ng == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no nodegroup with this name " + nodegroupName
-                                    + ".");
-                    } else
-                        MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, nodegroupName);
-                    break;
-                }
-
-                case CREATE_FUNCTION: {
-                    CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
-                    Function function = new Function(compiledDeclarations.getDataverseName(), cfs.getFunctionIdentifier().getFunctionName(),
-                            cfs.getFunctionIdentifier().getArity(), cfs.getParamList(), cfs.getFunctionBody());
-                    
-                    
-                    try {
-                        FunctionUtils.getFunctionDecl(function);
-                    } catch (Exception e) {
-                        throw new AsterixException("unable to compile function definition", e);
-                    }
-                    MetadataManager.INSTANCE.addFunction(mdTxnCtx, new Function(
-                            compiledDeclarations.getDataverseName(), cfs.getFunctionIdentifier().getFunctionName(), cfs
-                                    .getFunctionIdentifier().getArity(), cfs.getParamList(), cfs.getFunctionBody()));
-                    break;
-                }
-
-                case FUNCTION_DROP: {
-                    checkForDataverseConnection(true);
-                    FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
-                    String functionName = stmtDropFunction.getFunctionName().getValue();
-                    FunctionIdentifier fId = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, functionName,
-                            stmtDropFunction.getArity(), false);
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.FUNCTION, fId)) {
-                        throw new AsterixException(" Invalid Operation cannot drop function " + functionName
-                                + " (protected by system)");
-                    }
-                    Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), functionName, stmtDropFunction.getArity());
-                    if (function == null) {
-                        if (!stmtDropFunction.getIfExists())
-                            throw new AlgebricksException("\nThere is no function with this name " + functionName + ".");
-                    } else {
-                        MetadataManager.INSTANCE.dropFunction(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                                functionName, stmtDropFunction.getArity());
-                    }
-                    break;
-                }
-            }
-        }
-
-        if (disconnectFromDataverse) {
-            // disconnect the dataverse
-            if (compiledDeclarations.isConnectedToDataverse())
-                compiledDeclarations.disconnectFromDataverse();
-        }
-    }
-
-    private void checkForDataverseConnection(boolean needConnection) throws AlgebricksException {
-        if (compiledDeclarations.isConnectedToDataverse() != needConnection) {
-            if (needConnection)
-                throw new AlgebricksException("You need first to connect to a dataverse.");
-            else
-                throw new AlgebricksException("You need first to disconnect from the dataverse.");
-        }
-    }
-
-    private void runJob(IHyracksClientConnection hcc, JobSpecification jobSpec) throws Exception {
-        System.out.println(jobSpec.toString());
-        executeJobArray(hcc, new JobSpecification[] { jobSpec }, out, pdf);
-    }
-
-    public void executeJobArray(IHyracksClientConnection hcc, JobSpecification[] specs, PrintWriter out,
-            DisplayFormat pdf) throws Exception {
-        for (int i = 0; i < specs.length; i++) {
-            specs[i].setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
-            hcc.start(jobId);
-            hcc.waitForCompletion(jobId);
-        }
-    }
-
-    private void compileDatasetDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            String datasetName) throws Exception {
-        CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(datasetName);
-        Dataset ds = MetadataManager.INSTANCE
-                .getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName);
-        if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-            JobSpecification[] jobs = DatasetOperations.createDropDatasetJobSpec(cds, compiledDeclarations);
-            for (JobSpecification job : jobs)
-                runJob(hcc, job);
-        }
-        MetadataManager.INSTANCE.dropDataset(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName);
-    }
-
-    private void compileDatasetInitializeStatement(IHyracksClientConnection hcc, long txnId, String datasetName)
-            throws Exception {
-        JobSpecification[] jobs = DatasetOperations.createInitializeDatasetJobSpec(txnId, datasetName,
-                compiledDeclarations);
-        for (JobSpecification job : jobs) {
-            runJob(hcc, job);
-        }
-    }
-
-    public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
-        return compiledDeclarations;
-    }
-
-    private void compileIndexDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            String datasetName, String indexName) throws Exception {
-        CompiledIndexDropStatement cds = new CompiledIndexDropStatement(datasetName, indexName);
-        runJob(hcc, IndexOperations.createSecondaryIndexDropJobSpec(cds, compiledDeclarations));
-        MetadataManager.INSTANCE.dropIndex(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName, indexName);
-    }
-
-    private Map<String, IAType> computeTypes(MetadataTransactionContext mdTxnCtx, TypeDecl tDec)
-            throws AlgebricksException, MetadataException {
-        Map<String, IAType> typeMap = new HashMap<String, IAType>();
-        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
-        Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
-        Map<String, List<String>> incompleteTopLevelTypeReferences = new HashMap<String, List<String>>();
-
-        firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-        secondPass(mdTxnCtx, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-
-        return typeMap;
-    }
-
-    private void secondPass(MetadataTransactionContext mdTxnCtx, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException, MetadataException {
-        // solve remaining top level references
-        for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
-                typeMap.put(tname, t);
-            }
-        }
-        // solve remaining field type references
-        for (String trefName : incompleteFieldTypes.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes.get(trefName);
-            for (ARecordType recType : fieldsToFix.keySet()) {
-                List<Integer> positions = fieldsToFix.get(recType);
-                IAType[] fldTypes = recType.getFieldTypes();
-                for (Integer pos : positions) {
-                    if (fldTypes[pos] == null) {
-                        fldTypes[pos] = t;
-                    } else { // nullable
-                        AUnionType nullableUnion = (AUnionType) fldTypes[pos];
-                        nullableUnion.setTypeAtIndex(t, 1);
-                    }
-                }
-            }
-        }
-        // solve remaining item type references
-        for (String trefName : incompleteItemTypes.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
-                act.setItemType(t);
-            }
-        }
-    }
-
-    private void firstPass(TypeDecl td, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException {
-
-        TypeExpression texpr = td.getTypeDef();
-        String tdname = td.getIdent().getValue();
-        if (builtinTypeMap.get(tdname) != null) {
-            throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
-        }
-        switch (texpr.getTypeKind()) {
-            case TYPEREFERENCE: {
-                TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                IAType t = solveTypeReference(tre, typeMap);
-                if (t != null) {
-                    typeMap.put(tdname, t);
-                } else {
-                    addIncompleteTopLevelTypeReference(tdname, tre, incompleteTopLevelTypeReferences);
-                }
-                break;
-            }
-            case RECORD: {
-                RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
-                ARecordType recType = computeRecordType(tdname, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                typeMap.put(tdname, recType);
-                break;
-            }
-            case ORDEREDLIST: {
-                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                AOrderedListType olType = computeOrderedListType(tdname, oltd, typeMap, incompleteItemTypes,
-                        incompleteFieldTypes);
-                typeMap.put(tdname, olType);
-                break;
-            }
-            case UNORDEREDLIST: {
-                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                AUnorderedListType ulType = computeUnorderedListType(tdname, ultd, typeMap, incompleteItemTypes,
-                        incompleteFieldTypes);
-                typeMap.put(tdname, ulType);
-                break;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-    }
-
-    private AOrderedListType computeOrderedListType(String typeName, OrderedListTypeDefinition oltd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = oltd.getItemTypeExpression();
-        AOrderedListType aolt = new AOrderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, aolt);
-        return aolt;
-    }
-
-    private AUnorderedListType computeUnorderedListType(String typeName, UnorderedListTypeDefinition ultd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = ultd.getItemTypeExpression();
-        AUnorderedListType ault = new AUnorderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, ault);
-        return ault;
-    }
-
-    private void setCollectionItemType(TypeExpression tExpr, Map<String, IAType> typeMap,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, AbstractCollectionType act) {
-        switch (tExpr.getTypeKind()) {
-            case ORDEREDLIST: {
-                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
-                IAType t = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case UNORDEREDLIST: {
-                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
-                IAType t = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case RECORD: {
-                RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
-                IAType t = computeRecordType(null, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                act.setItemType(t);
-                break;
-            }
-            case TYPEREFERENCE: {
-                TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
-                IAType tref = solveTypeReference(tre, typeMap);
-                if (tref != null) {
-                    act.setItemType(tref);
-                } else {
-                    addIncompleteCollectionTypeReference(act, tre, incompleteItemTypes);
-                }
-                break;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-    }
-
-    private ARecordType computeRecordType(String typeName, RecordTypeDefinition rtd, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        List<String> names = rtd.getFieldNames();
-        int n = names.size();
-        String[] fldNames = new String[n];
-        IAType[] fldTypes = new IAType[n];
-        int i = 0;
-        for (String s : names) {
-            fldNames[i++] = s;
-        }
-        boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
-        ARecordType recType = new ARecordType(typeName, fldNames, fldTypes, isOpen);
-        for (int j = 0; j < n; j++) {
-            TypeExpression texpr = rtd.getFieldTypes().get(j);
-            switch (texpr.getTypeKind()) {
-                case TYPEREFERENCE: {
-                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                    IAType tref = solveTypeReference(tre, typeMap);
-                    if (tref != null) {
-                        if (!rtd.getNullableFields().get(j)) { // not nullable
-                            fldTypes[j] = tref;
-                        } else { // nullable
-                            fldTypes[j] = makeUnionWithNull(null, tref);
-                        }
-                    } else {
-                        addIncompleteFieldTypeReference(recType, j, tre, incompleteFieldTypes);
-                        if (rtd.getNullableFields().get(j)) {
-                            fldTypes[j] = makeUnionWithNull(null, null);
-                        }
-                    }
-                    break;
-                }
-                case RECORD: {
-                    RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
-                    IAType t2 = computeRecordType(null, recTypeDef2, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                    if (!rtd.getNullableFields().get(j)) { // not nullable
-                        fldTypes[j] = t2;
-                    } else { // nullable
-                        fldTypes[j] = makeUnionWithNull(null, t2);
-                    }
-                    break;
-                }
-                case ORDEREDLIST: {
-                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                    IAType t2 = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                case UNORDEREDLIST: {
-                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                    IAType t2 = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                default: {
-                    throw new IllegalStateException();
-                }
-            }
-
-        }
-
-        return recType;
-    }
-
-    private AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
-        ArrayList<IAType> unionList = new ArrayList<IAType>(2);
-        unionList.add(BuiltinType.ANULL);
-        unionList.add(type);
-        return new AUnionType(unionList, unionTypeName);
-    }
-
-    private void addIncompleteCollectionTypeReference(AbstractCollectionType collType, TypeReferenceExpression tre,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        String typeName = tre.getIdent().getValue();
-        List<AbstractCollectionType> typeList = incompleteItemTypes.get(typeName);
-        if (typeList == null) {
-            typeList = new LinkedList<AbstractCollectionType>();
-            incompleteItemTypes.put(typeName, typeList);
-        }
-        typeList.add(collType);
-    }
-
-    private void addIncompleteFieldTypeReference(ARecordType recType, int fldPosition, TypeReferenceExpression tre,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        String typeName = tre.getIdent().getValue();
-        Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes.get(typeName);
-        if (refMap == null) {
-            refMap = new HashMap<ARecordType, List<Integer>>();
-            incompleteFieldTypes.put(typeName, refMap);
-        }
-        List<Integer> typeList = refMap.get(recType);
-        if (typeList == null) {
-            typeList = new ArrayList<Integer>();
-            refMap.put(recType, typeList);
-        }
-        typeList.add(fldPosition);
-    }
-
-    private void addIncompleteTopLevelTypeReference(String tdeclName, TypeReferenceExpression tre,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) {
-        String name = tre.getIdent().getValue();
-        List<String> refList = incompleteTopLevelTypeReferences.get(name);
-        if (refList == null) {
-            refList = new LinkedList<String>();
-            incompleteTopLevelTypeReferences.put(name, refList);
-        }
-        refList.add(tdeclName);
-    }
-
-    private IAType solveTypeReference(TypeReferenceExpression tre, Map<String, IAType> typeMap) {
-        String name = tre.getIdent().getValue();
-        IAType builtin = builtinTypeMap.get(name);
-        if (builtin != null) {
-            return builtin;
-        } else {
-            return typeMap.get(name);
-        }
-    }
-
-    public static interface ICompiledStatement {
-
-        public abstract Kind getKind();
-    }
-
-    public static class CompiledLoadFromFileStatement implements ICompiledStatement, IParseFileSplitsDecl {
-        private String datasetName;
-        private FileSplit[] splits;
-        private boolean alreadySorted;
-        private Character delimChar;
-
-        public CompiledLoadFromFileStatement(String datasetName, FileSplit[] splits, Character delimChar,
-                boolean alreadySorted) {
-            this.datasetName = datasetName;
-            this.splits = splits;
-            this.delimChar = delimChar;
-            this.alreadySorted = alreadySorted;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        @Override
-        public FileSplit[] getSplits() {
-            return splits;
-        }
-
-        @Override
-        public Character getDelimChar() {
-            return delimChar;
-        }
-
-        public boolean alreadySorted() {
-            return alreadySorted;
-        }
-
-        @Override
-        public boolean isDelimitedFileFormat() {
-            return delimChar != null;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.LOAD_FROM_FILE;
-        }
-    }
-
-    public static class CompiledWriteFromQueryResultStatement implements ICompiledStatement {
-
-        private String datasetName;
-        private Query query;
-        private int varCounter;
-
-        public CompiledWriteFromQueryResultStatement(String datasetName, Query query, int varCounter) {
-            this.datasetName = datasetName;
-            this.query = query;
-            this.varCounter = varCounter;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.WRITE_FROM_QUERY_RESULT;
-        }
-
-    }
-
-    public static class CompiledDatasetDropStatement implements ICompiledStatement {
-        private String datasetName;
-
-        public CompiledDatasetDropStatement(String datasetName) {
-            this.datasetName = datasetName;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.DATASET_DROP;
-        }
-    }
-
-    // added by yasser
-    public static class CompiledCreateDataverseStatement implements ICompiledStatement {
-        private String dataverseName;
-        private String format;
-
-        public CompiledCreateDataverseStatement(String dataverseName, String format) {
-            this.dataverseName = dataverseName;
-            this.format = format;
-        }
-
-        public String getDataverseName() {
-            return dataverseName;
-        }
-
-        public String getFormat() {
-            return format;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.CREATE_DATAVERSE;
-        }
-    }
-
-    public static class CompiledNodeGroupDropStatement implements ICompiledStatement {
-        private String nodeGroupName;
-
-        public CompiledNodeGroupDropStatement(String nodeGroupName) {
-            this.nodeGroupName = nodeGroupName;
-        }
-
-        public String getNodeGroupName() {
-            return nodeGroupName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.NODEGROUP_DROP;
-        }
-    }
-
-    public static class CompiledIndexDropStatement implements ICompiledStatement {
-        private String datasetName;
-        private String indexName;
-
-        public CompiledIndexDropStatement(String datasetName, String indexName) {
-            this.datasetName = datasetName;
-            this.indexName = indexName;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public String getIndexName() {
-            return indexName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.INDEX_DROP;
-        }
-    }
-
-    public static class CompiledDataverseDropStatement implements ICompiledStatement {
-        private String dataverseName;
-        private boolean ifExists;
-
-        public CompiledDataverseDropStatement(String dataverseName, boolean ifExists) {
-            this.dataverseName = dataverseName;
-            this.ifExists = ifExists;
-        }
-
-        public String getDataverseName() {
-            return dataverseName;
-        }
-
-        public boolean getIfExists() {
-            return ifExists;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.DATAVERSE_DROP;
-        }
-    }
-
-    public static class CompiledTypeDropStatement implements ICompiledStatement {
-        private String typeName;
-
-        public CompiledTypeDropStatement(String nodeGroupName) {
-            this.typeName = nodeGroupName;
-        }
-
-        public String getTypeName() {
-            return typeName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.TYPE_DROP;
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java
new file mode 100644
index 0000000..8d6b35e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java
@@ -0,0 +1,50 @@
+/*
+ * 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.aql.translator;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+
+public class QueryResult {
+
+    private final Query query;
+
+    private final ResultSetId resultSetId;
+
+    private JobId jobId;
+
+    public QueryResult(Query statement, ResultSetId resultSetId) {
+        this.query = statement;
+        this.resultSetId = resultSetId;
+    }
+
+    public void setJobId(JobId jobId) {
+        this.jobId = jobId;
+    }
+
+    public JobId getJobId() {
+        return jobId;
+    }
+
+    public Statement getStatement() {
+        return query;
+    }
+
+    public ResultSetId getResultSetId() {
+        return resultSetId;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java
deleted file mode 100644
index 6320737..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java
+++ /dev/null
@@ -1,122 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.exceptions.AsterixRuntimeException;
-import edu.uci.ics.hyracks.api.application.INCApplicationContext;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexRegistry;
-import edu.uci.ics.hyracks.storage.common.buffercache.BufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ClockPageReplacementStrategy;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-
-public class AsterixAppRuntimeContext {
-    private static AsterixAppRuntimeContext INSTANCE;
-
-    private IndexRegistry<IIndex> treeRegistry;
-    private IBufferCache bufferCache;
-    private IFileMapManager fileMapManager;
-    private INCApplicationContext ncAppContext;
-
-    private static Logger LOGGER = Logger.getLogger(AsterixAppRuntimeContext.class.getName());
-
-    private AsterixAppRuntimeContext() {
-    }
-
-    public static void initialize(INCApplicationContext ncAppContext) throws IOException {
-        if (INSTANCE != null) {
-            LOGGER.info("Asterix instance already initialized");
-            return;
-        }
-
-        INSTANCE = new AsterixAppRuntimeContext();
-        INSTANCE.ncAppContext = ncAppContext;
-        INSTANCE.start();
-    }
-
-    public static void deinitialize() {
-        if (INSTANCE != null) {
-            INSTANCE.stop();
-            INSTANCE = null;
-        }
-    }
-
-    private void stop() {
-        bufferCache.close();
-    }
-
-    private void start() throws IOException {
-        fileMapManager = new AsterixFileMapManager();
-        ICacheMemoryAllocator allocator = new HeapBufferAllocator();
-        IPageReplacementStrategy prs = new ClockPageReplacementStrategy();
-        if (ncAppContext == null) {
-            throw new AsterixRuntimeException("NC Application Context has not been set.");
-        }
-        IIOManager ioMgr = ncAppContext.getRootContext().getIOManager();
-        String pgsizeStr = System.getProperty(GlobalConfig.BUFFER_CACHE_PAGE_SIZE_PROPERTY);
-        int pgSize = -1;
-        if (pgsizeStr != null) {
-            try {
-                pgSize = Integer.parseInt(pgsizeStr);
-            } catch (NumberFormatException nfe) {
-                StringWriter sw = new StringWriter();
-                nfe.printStackTrace(new PrintWriter(sw, true));
-                sw.close();
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache page size argument. Picking frame size ("
-                        + ncAppContext.getRootContext().getFrameSize() + ") instead. \n" + sw.toString() + "\n");
-            }
-        }
-        if (pgSize < 0) {
-            // by default, pick the frame size
-            pgSize = ncAppContext.getRootContext().getFrameSize();
-        }
-
-        int cacheSize = GlobalConfig.DEFAULT_BUFFER_CACHE_SIZE;
-        String cacheSizeStr = System.getProperty(GlobalConfig.BUFFER_CACHE_SIZE_PROPERTY);
-        if (cacheSizeStr != null) {
-            int cs = -1;
-            try {
-                cs = Integer.parseInt(cacheSizeStr);
-            } catch (NumberFormatException nfe) {
-                StringWriter sw = new StringWriter();
-                nfe.printStackTrace(new PrintWriter(sw, true));
-                sw.close();
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache size argument. Picking default value ("
-                        + GlobalConfig.DEFAULT_BUFFER_CACHE_SIZE + ") instead.\n");
-            }
-            if (cs >= 0) {
-                cacheSize = cs;
-            }
-        }
-        System.out.println("BC :" + pgSize + " cache " + cacheSize);
-        bufferCache = new BufferCache(ioMgr, allocator, prs, fileMapManager, pgSize, cacheSize, Integer.MAX_VALUE);
-        treeRegistry = new IndexRegistry<IIndex>();
-    }
-
-    public static AsterixAppRuntimeContext getInstance() {
-        return INSTANCE;
-    }
-
-    public IBufferCache getBufferCache() {
-        return bufferCache;
-    }
-
-    public IFileMapProvider getFileMapManager() {
-        return fileMapManager;
-    }
-
-    public IndexRegistry<IIndex> getTreeRegistry() {
-        return treeRegistry;
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java
deleted file mode 100644
index 0aacc3d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java
+++ /dev/null
@@ -1,61 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import java.io.File;
-import java.util.HashMap;
-import java.util.Map;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
-
-public class AsterixFileMapManager implements IFileMapManager {
-
-    private static final long serialVersionUID = 1L;
-    private Map<Integer, String> id2nameMap = new HashMap<Integer, String>();
-    private Map<String, Integer> name2IdMap = new HashMap<String, Integer>();
-    private int idCounter = 0;
-
-    @Override
-    public FileReference lookupFileName(int fileId) throws HyracksDataException {
-        String fName = id2nameMap.get(fileId);
-        if (fName == null) {
-            throw new HyracksDataException("No mapping found for id: " + fileId);
-        }
-        return new FileReference(new File(fName));
-    }
-
-    @Override
-    public int lookupFileId(FileReference fileRef) throws HyracksDataException {
-        String fileName = fileRef.getFile().getAbsolutePath();
-        Integer fileId = name2IdMap.get(fileName);
-        if (fileId == null) {
-            throw new HyracksDataException("No mapping found for name: " + fileName);
-        }
-        return fileId;
-    }
-
-    @Override
-    public boolean isMapped(FileReference fileRef) {
-        String fileName = fileRef.getFile().getAbsolutePath();
-        return name2IdMap.containsKey(fileName);
-    }
-
-    @Override
-    public boolean isMapped(int fileId) {
-        return id2nameMap.containsKey(fileId);
-    }
-
-    @Override
-    public void unregisterFile(int fileId) throws HyracksDataException {
-        String fileName = id2nameMap.remove(fileId);
-        name2IdMap.remove(fileName);
-    }
-
-    @Override
-    public void registerFile(FileReference fileRef) throws HyracksDataException {
-        Integer fileId = idCounter++;
-        String fileName = fileRef.getFile().getAbsolutePath();
-        id2nameMap.put(fileId, fileName);
-        name2IdMap.put(fileName, fileId);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java
deleted file mode 100644
index 12d715d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-
-public class AsterixStorageManagerInterface implements IStorageManagerInterface {
-    private static final long serialVersionUID = 1L;
-
-    public static AsterixStorageManagerInterface INSTANCE = new AsterixStorageManagerInterface();
-
-    @Override
-    public IBufferCache getBufferCache(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getBufferCache();
-    }
-
-    @Override
-    public IFileMapProvider getFileMapProvider(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getFileMapManager();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java
deleted file mode 100644
index 80fd64a..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexRegistry;
-
-public class AsterixTreeRegistryProvider implements IIndexRegistryProvider<IIndex> {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AsterixTreeRegistryProvider INSTANCE = new AsterixTreeRegistryProvider();
-
-    private AsterixTreeRegistryProvider() {
-    }
-
-    @Override
-    public IndexRegistry<IIndex> getRegistry(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getTreeRegistry();
-    }
-
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
index d179eb6..d4c8c34 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * 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
@@ -12,46 +12,52 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package edu.uci.ics.asterix.file;
 
+import java.io.File;
+import java.io.IOException;
 import java.rmi.RemoteException;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.api.common.Job;
-import edu.uci.ics.asterix.aql.translator.DdlTranslator.CompiledDatasetDropStatement;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledExternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetCardinalityHint;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.operators.std.NoTupleSourceRuntimeFactory;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledLoadFromFileStatement;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDatasetDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+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.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.AssignRuntimeFactory;
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
@@ -68,13 +74,13 @@
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDropOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
 
 public class DatasetOperations {
 
@@ -83,243 +89,170 @@
 
     private static Logger LOGGER = Logger.getLogger(DatasetOperations.class.getName());
 
-    public static JobSpecification[] createDropDatasetJobSpec(CompiledDatasetDropStatement deleteStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AlgebricksException, HyracksDataException,
-            RemoteException, ACIDException, AsterixException {
+    public static JobSpecification createDropDatasetJobSpec(CompiledDatasetDropStatement datasetDropStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, HyracksDataException, RemoteException,
+            ACIDException, AsterixException {
 
-        String datasetName = deleteStmt.getDatasetName();
-        String datasetPath = metadata.getRelativePath(datasetName);
+        String dataverseName = null;
+        if (datasetDropStmt.getDataverseName() != null) {
+            dataverseName = datasetDropStmt.getDataverseName();
+        } else if (metadataProvider.getDefaultDataverse() != null) {
+            dataverseName = metadataProvider.getDefaultDataverse().getDataverseName();
+        }
+
+        String datasetName = datasetDropStmt.getDatasetName();
+        String datasetPath = dataverseName + File.separator + datasetName;
 
         LOGGER.info("DROP DATASETPATH: " + datasetPath);
 
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
+        Dataset dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
             throw new AlgebricksException("DROP DATASET: No metadata for dataset " + datasetName);
         }
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
-            return new JobSpecification[0];
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            return new JobSpecification();
         }
 
-        List<AqlCompiledIndexDecl> secondaryIndexes = DatasetUtils.getSecondaryIndexes(adecl);
-
-        JobSpecification[] specs;
-
-        if (secondaryIndexes != null && !secondaryIndexes.isEmpty()) {
-            int n = secondaryIndexes.size();
-            specs = new JobSpecification[n + 1];
-            int i = 0;
-            // first, drop indexes
-            for (AqlCompiledIndexDecl acid : secondaryIndexes) {
-                specs[i] = new JobSpecification();
-                Pair<IFileSplitProvider, AlgebricksPartitionConstraint> idxSplitsAndConstraint = metadata
-                        .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, acid.getIndexName());
-                TreeIndexDropOperatorDescriptor secondaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specs[i],
-                        storageManager, btreeRegistryProvider, idxSplitsAndConstraint.first);
-                AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specs[i], secondaryBtreeDrop,
-                        idxSplitsAndConstraint.second);
-                i++;
-            }
-        } else {
-            specs = new JobSpecification[1];
-        }
         JobSpecification specPrimary = new JobSpecification();
-        specs[specs.length - 1] = specPrimary;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-        TreeIndexDropOperatorDescriptor primaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specPrimary,
-                storageManager, btreeRegistryProvider, splitsAndConstraint.first);
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(), datasetName,
+                        datasetName);
+        IndexDropOperatorDescriptor primaryBtreeDrop = new IndexDropOperatorDescriptor(specPrimary,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES));
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specPrimary, primaryBtreeDrop,
                 splitsAndConstraint.second);
 
         specPrimary.addRoot(primaryBtreeDrop);
 
-        return specs;
+        return specPrimary;
     }
 
-    public static JobSpecification[] createInitializeDatasetJobSpec(long txnId, String datasetName,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
-        }
-        if (compiledDatasetDecl.getDatasetType() != DatasetType.INTERNAL
-                && compiledDatasetDecl.getDatasetType() != DatasetType.FEED) {
-            throw new AsterixException("Cannot initialize  dataset  (" + datasetName + ")" + "of type "
-                    + compiledDatasetDecl.getDatasetType());
-        }
-
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
+    public static JobSpecification createDatasetJobSpec(Dataverse dataverse, String datasetName,
+            AqlMetadataProvider metadata) throws AsterixException, AlgebricksException {
+        String dataverseName = dataverse.getDataverseName();
         IDataFormat format;
-        ISerializerDeserializer payloadSerde;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-
         try {
-            format = metadata.getFormat();
-            payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
-            comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(compiledDatasetDecl, metadata
-                    .getFormat().getBinaryComparatorFactoryProvider());
-            typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    datasetName);
-
-        } catch (AlgebricksException e1) {
-            throw new AsterixException(e1);
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
         }
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider.createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(typeTraits);
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        JobSpecification spec = new JobSpecification();
-        RecordDescriptor recDesc;
-        try {
-            recDesc = computePayloadKeyRecordDescriptor(compiledDatasetDecl, payloadSerde, metadata.getFormat());
-            NoTupleSourceRuntimeFactory factory = new NoTupleSourceRuntimeFactory();
-            AlgebricksMetaOperatorDescriptor asterixOp = new AlgebricksMetaOperatorDescriptor(spec, 0, 1,
-                    new IPushRuntimeFactory[] { factory }, new RecordDescriptor[] { recDesc });
-
-            // move key fieldsx to front
-            List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                    .getPartitioningFunctions(compiledDatasetDecl);
-            int numKeys = partitioningFunctions.size();
-            int[] keys = new int[numKeys];
-            for (int i = 0; i < numKeys; i++) {
-                keys[i] = i + 1;
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Could not find dataset " + datasetName + " in datavetse " + dataverseName);
+        }
+        ARecordType itemType = (ARecordType) metadata.findType(dataverseName, dataset.getItemTypeName());
+        for (String keyField : DatasetUtils.getPartitioningKeys(dataset)) {
+            try {
+                if (!itemType.isClosedField(keyField)) {
+                    throw new AsterixException("Cannot partition dataset \"" + dataset.getDatasetName()
+                            + "\" by key \"" + keyField + "\" since it is not a valid field of \""
+                            + itemType.getTypeName() + "\"");
+                }
+            } catch (IOException e) {
+                throw new AsterixException(e);
             }
-
-            int[] fieldPermutation = new int[numKeys + 1];
-            System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
-            fieldPermutation[numKeys] = 0;
-
-            TreeIndexBulkLoadOperatorDescriptor bulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                    storageManager, btreeRegistryProvider, splitsAndConstraint.first, interiorFrameFactory,
-                    leafFrameFactory, typeTraits, comparatorFactories, fieldPermutation,
-                    GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
-
-            AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixOp,
-                    splitsAndConstraint.second);
-            AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, bulkLoad,
-                    splitsAndConstraint.second);
-
-            spec.connect(new OneToOneConnectorDescriptor(spec), asterixOp, 0, bulkLoad, 0);
-
-            spec.addRoot(bulkLoad);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
         }
+        JobSpecification spec = new JobSpecification();
+        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                itemType, format.getBinaryComparatorFactoryProvider());
+        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+        int[] blooFilterKeyFields = DatasetUtils.createBloomFilterKeyFields(dataset);
 
-        return new JobSpecification[] { spec };
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
+        FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < fs.length; i++) {
+            sb.append(stringOf(fs[i]) + " ");
+        }
+        LOGGER.info("CREATING File Splits: " + sb.toString());
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
+                comparatorFactories, blooFilterKeyFields, true, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMBTreeResource);
+
+        TreeIndexCreateOperatorDescriptor indexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, typeTraits, comparatorFactories, blooFilterKeyFields,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), localResourceFactoryProvider,
+                NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, indexCreateOp,
+                splitsAndConstraint.second);
+        spec.addRoot(indexCreateOp);
+        return spec;
     }
 
-    @SuppressWarnings("unchecked")
-    public static List<Job> createLoadDatasetJobSpec(CompiledLoadFromFileStatement loadStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-
+    @SuppressWarnings("rawtypes")
+    public static Job createLoadDatasetJobSpec(AqlMetadataProvider metadataProvider,
+            CompiledLoadFromFileStatement loadStmt, IDataFormat format) throws AsterixException, AlgebricksException {
+        MetadataTransactionContext mdTxnCtx = metadataProvider.getMetadataTxnContext();
+        String dataverseName = loadStmt.getDataverseName();
         String datasetName = loadStmt.getDatasetName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
+        Dataset dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Could not find dataset " + datasetName + " in dataverse " + dataverseName);
         }
-        if (compiledDatasetDecl.getDatasetType() != DatasetType.INTERNAL
-                && compiledDatasetDecl.getDatasetType() != DatasetType.FEED) {
+        if (dataset.getDatasetType() != DatasetType.INTERNAL && dataset.getDatasetType() != DatasetType.FEED) {
             throw new AsterixException("Cannot load data into dataset  (" + datasetName + ")" + "of type "
-                    + compiledDatasetDecl.getDatasetType());
+                    + dataset.getDatasetType());
         }
-
-        List<Job> jobSpecs = new ArrayList<Job>();
-        try {
-            jobSpecs.addAll(dropDatasetIndexes(datasetName, metadata));
-        } catch (AlgebricksException ae) {
-            throw new AsterixException(ae);
-        }
-
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        IDataFormat format;
-        try {
-            format = metadata.getFormat();
-        } catch (AlgebricksException e1) {
-            throw new AsterixException(e1);
-        }
-        ISerializerDeserializer payloadSerde;
-        try {
-            payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
-
-        IBinaryHashFunctionFactory[] hashFactories;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        try {
-            hashFactories = DatasetUtils.computeKeysBinaryHashFunFactories(compiledDatasetDecl, metadata.getFormat()
-                    .getBinaryHashFunctionFactoryProvider());
-            comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(compiledDatasetDecl, metadata
-                    .getFormat().getBinaryComparatorFactoryProvider());
-            typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
-
         JobSpecification spec = new JobSpecification();
-        IOperatorDescriptor scanner;
-        AlgebricksPartitionConstraint scannerPc;
-        RecordDescriptor recDesc;
-        try {
-            AqlCompiledExternalDatasetDetails add = new AqlCompiledExternalDatasetDetails(loadStmt.getAdapter(),
-                    loadStmt.getProperties());
-            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = AqlMetadataProvider
-                    .buildExternalDataScannerRuntime(spec, itemType, add, format);
-            scanner = p.first;
-            scannerPc = p.second;
-            recDesc = computePayloadKeyRecordDescriptor(compiledDatasetDecl, payloadSerde, metadata.getFormat());
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
+
+        ARecordType itemType = (ARecordType) MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName,
+                dataset.getItemTypeName()).getDatatype();
+        ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
+
+        IBinaryHashFunctionFactory[] hashFactories = DatasetUtils.computeKeysBinaryHashFunFactories(dataset, itemType,
+                format.getBinaryHashFunctionFactoryProvider());
+        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                itemType, format.getBinaryComparatorFactoryProvider());
+        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+        int[] blooFilterKeyFields = DatasetUtils.createBloomFilterKeyFields(dataset);
+
+        ExternalDatasetDetails externalDatasetDetails = new ExternalDatasetDetails(loadStmt.getAdapter(),
+                loadStmt.getProperties());
+
+        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = metadataProvider.buildExternalDataScannerRuntime(
+                spec, itemType, externalDatasetDetails, format);
+        IOperatorDescriptor scanner = p.first;
+        AlgebricksPartitionConstraint scannerPc = p.second;
+        RecordDescriptor recDesc = computePayloadKeyRecordDescriptor(dataset, itemType, payloadSerde, format);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, scanner, scannerPc);
 
-        AssignRuntimeFactory assign = makeAssignRuntimeFactory(compiledDatasetDecl);
+        AssignRuntimeFactory assign = makeAssignRuntimeFactory(dataset, itemType, format);
         AlgebricksMetaOperatorDescriptor asterixOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
                 new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { recDesc });
 
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixOp, scannerPc);
 
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
+        int numKeys = DatasetUtils.getPartitioningKeys(dataset).size();
         int[] keys = new int[numKeys];
         for (int i = 0; i < numKeys; i++) {
             keys[i] = i + 1;
         }
-        int framesLimit = physicalOptimizationConfig.getMaxFramesExternalSort();
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider.createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(typeTraits);
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // move key fields to front
+        // Move key fields to front.
         int[] fieldPermutation = new int[numKeys + 1];
-        System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
+        for (int i = 0; i < numKeys; i++) {
+            fieldPermutation[i] = i + 1;
+        }
         fieldPermutation[numKeys] = 0;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-        try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    datasetName);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
 
         FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
         StringBuilder sb = new StringBuilder();
@@ -328,24 +261,36 @@
         }
         LOGGER.info("LOAD into File Splits: " + sb.toString());
 
+        String numElementsHintString = dataset.getHints().get("CARDINALITY");
+        long numElementsHint;
+        if (numElementsHintString == null) {
+            numElementsHint = DatasetCardinalityHint.DEFAULT;
+        } else {
+            numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
+        }
+
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, btreeRegistryProvider, splitsAndConstraint.first, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, fieldPermutation,
-                GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, typeTraits, comparatorFactories, blooFilterKeyFields, fieldPermutation,
+                GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, false, numElementsHint, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, btreeBulkLoad,
                 splitsAndConstraint.second);
 
         spec.connect(new OneToOneConnectorDescriptor(spec), scanner, 0, asterixOp, 0);
 
         if (!loadStmt.alreadySorted()) {
+            int framesLimit = physicalOptimizationConfig.getMaxFramesExternalSort();
             ExternalSortOperatorDescriptor sorter = new ExternalSortOperatorDescriptor(spec, framesLimit, keys,
                     comparatorFactories, recDesc);
             AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sorter,
                     splitsAndConstraint.second);
-
             IConnectorDescriptor hashConn = new MToNPartitioningConnectorDescriptor(spec,
                     new FieldHashPartitionComputerFactory(keys, hashFactories));
-
             spec.connect(hashConn, asterixOp, 0, sorter, 0);
             spec.connect(new OneToOneConnectorDescriptor(spec), sorter, 0, btreeBulkLoad, 0);
         } else {
@@ -353,56 +298,24 @@
                     new FieldHashPartitionComputerFactory(keys, hashFactories), keys, comparatorFactories);
             spec.connect(sortMergeConn, asterixOp, 0, btreeBulkLoad, 0);
         }
-
         spec.addRoot(btreeBulkLoad);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
 
-        jobSpecs.add(new Job(spec));
-        return jobSpecs;
-    }
-
-    private static List<Job> dropDatasetIndexes(String datasetName, AqlCompiledMetadataDeclarations metadata)
-            throws AlgebricksException, MetadataException {
-
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("DROP DATASET INDEXES: No metadata for dataset " + datasetName);
-        }
-
-        List<AqlCompiledIndexDecl> indexes = DatasetUtils.getSecondaryIndexes(adecl);
-        indexes.add(DatasetUtils.getPrimaryIndex(adecl));
-
-        List<Job> specs = new ArrayList<Job>();
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        if (indexes != null && !indexes.isEmpty()) {
-            // first, drop indexes
-            for (AqlCompiledIndexDecl acid : indexes) {
-                JobSpecification spec = new JobSpecification();
-                Pair<IFileSplitProvider, AlgebricksPartitionConstraint> idxSplitsAndConstraint = metadata
-                        .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, acid.getIndexName());
-                TreeIndexDropOperatorDescriptor secondaryBtreeDrop = new TreeIndexDropOperatorDescriptor(spec,
-                        storageManager, btreeRegistryProvider, idxSplitsAndConstraint.first);
-                AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBtreeDrop,
-                        idxSplitsAndConstraint.second);
-                specs.add(new Job(spec));
-            }
-        }
-        return specs;
+        return new Job(spec);
     }
 
     private static String stringOf(FileSplit fs) {
         return fs.getNodeName() + ":" + fs.getLocalFile().toString();
     }
 
-    private static AssignRuntimeFactory makeAssignRuntimeFactory(AqlCompiledDatasetDecl compiledDatasetDecl) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numKeys];
+    private static AssignRuntimeFactory makeAssignRuntimeFactory(Dataset dataset, ARecordType itemType,
+            IDataFormat format) throws AlgebricksException {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numKeys = partitioningKeys.size();
+        ICopyEvaluatorFactory[] evalFactories = new ICopyEvaluatorFactory[numKeys];
         for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
+            Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = format
+                    .partitioningEvaluatorFactory(itemType, partitioningKeys.get(i));
             evalFactories[i] = evalFactoryAndType.first;
         }
         int[] outColumns = new int[numKeys];
@@ -413,25 +326,31 @@
             outColumns[i] = i + 1;
             projectionList[i + 1] = i + 1;
         }
-        return new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
+        IScalarEvaluatorFactory[] sefs = new IScalarEvaluatorFactory[evalFactories.length];
+        for (int i = 0; i < evalFactories.length; ++i) {
+            sefs[i] = new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(
+                    evalFactories[i]);
+        }
+        return new AssignRuntimeFactory(outColumns, sefs, projectionList);
     }
 
-    @SuppressWarnings("unchecked")
-    private static RecordDescriptor computePayloadKeyRecordDescriptor(AqlCompiledDatasetDecl compiledDatasetDecl,
+    @SuppressWarnings("rawtypes")
+    private static RecordDescriptor computePayloadKeyRecordDescriptor(Dataset dataset, ARecordType itemType,
             ISerializerDeserializer payloadSerde, IDataFormat dataFormat) throws AlgebricksException {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numKeys = partitioningKeys.size();
         ISerializerDeserializer[] recordFields = new ISerializerDeserializer[1 + numKeys];
         recordFields[0] = payloadSerde;
         for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
-            IAType keyType = evalFactoryAndType.third;
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
             ISerializerDeserializer keySerde = dataFormat.getSerdeProvider().getSerializerDeserializer(keyType);
             recordFields[i + 1] = keySerde;
         }
         return new RecordDescriptor(recordFields);
     }
-
 }
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 ef2425d..f9bd2d5 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
@@ -14,52 +14,55 @@
  */
 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.feed.comm.AlterFeedMessage;
-import edu.uci.ics.asterix.feed.comm.FeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage.MessageType;
-import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledFeedDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+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.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledControlFeedStatement;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+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;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.dataflow.std.misc.NullSinkOperatorDescriptor;
 
+/**
+ * Provides helper method(s) for creating JobSpec for operations on a feed.
+ */
 public class FeedOperations {
 
     private static final Logger LOGGER = Logger.getLogger(IndexOperations.class.getName());
 
+    /**
+     * @param controlFeedStatement
+     *            The statement representing the action that describes the
+     *            action that needs to be taken on the feed. E.g. of actions are
+     *            stop feed or alter feed.
+     * @param metadataProvider
+     *            An instance of the MetadataProvider
+     * @return An instance of JobSpec for the job that would send an appropriate
+     *         control message to the running feed.
+     * @throws AsterixException
+     * @throws AlgebricksException
+     */
     public static JobSpecification buildControlFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
         switch (controlFeedStatement.getOperationType()) {
             case ALTER:
-            case SUSPEND:
-            case RESUME:
             case END: {
-                return createSendMessageToFeedJobSpec(controlFeedStatement, datasetDecls);
+                return createSendMessageToFeedJobSpec(controlFeedStatement, metadataProvider);
             }
             default: {
                 throw new AsterixException("Unknown Operation Type: " + controlFeedStatement.getOperationType());
@@ -69,18 +72,25 @@
     }
 
     private static JobSpecification createSendMessageToFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-        String datasetName = controlFeedStatement.getDatasetName().getValue();
-        String datasetPath = metadata.getRelativePath(datasetName);
+            AqlMetadataProvider metadataProvider) 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);
 
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
+        Dataset dataset;
+        try {
+            dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        } catch (AlgebricksException e) {
+            throw new AsterixException(e);
+        }
+        if (dataset == null) {
             throw new AsterixException("FEED DATASET: No metadata for dataset " + datasetName);
         }
-        if (adecl.getDatasetType() != DatasetType.FEED) {
-            throw new AsterixException("Operation not support for dataset type  " + adecl.getDatasetType());
+        if (dataset.getDatasetType() != DatasetType.FEED) {
+            throw new AsterixException("Operation not support for dataset type  " + dataset.getDatasetType());
         }
 
         JobSpecification spec = new JobSpecification();
@@ -89,24 +99,18 @@
 
         List<IFeedMessage> feedMessages = new ArrayList<IFeedMessage>();
         switch (controlFeedStatement.getOperationType()) {
-            case SUSPEND:
-                feedMessages.add(new FeedMessage(MessageType.SUSPEND));
-                break;
             case END:
                 feedMessages.add(new FeedMessage(MessageType.STOP));
                 break;
-            case RESUME:
-                feedMessages.add(new FeedMessage(MessageType.RESUME));
-                break;
             case ALTER:
                 feedMessages.add(new AlterFeedMessage(controlFeedStatement.getProperties()));
                 break;
         }
 
         try {
-            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = AqlMetadataProvider.buildFeedMessengerRuntime(
-                    spec, metadata, (AqlCompiledFeedDatasetDetails) adecl.getAqlCompiledDatasetDetails(),
-                    metadata.getDataverseName(), datasetName, feedMessages);
+            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = metadataProvider.buildFeedMessengerRuntime(
+                    metadataProvider, spec, (FeedDatasetDetails) dataset.getDatasetDetails(), dataverseName,
+                    datasetName, feedMessages);
             feedMessenger = p.first;
             messengerPc = p.second;
         } catch (AlgebricksException e) {
@@ -124,49 +128,4 @@
         return spec;
 
     }
-
-    private static AssignRuntimeFactory makeAssignRuntimeFactory(AqlCompiledDatasetDecl compiledDatasetDecl) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numKeys];
-
-        int index = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            evalFactories[index++] = evalFactoryAndType.first;
-        }
-
-        int[] outColumns = new int[numKeys];
-        int[] projectionList = new int[numKeys + 1];
-        projectionList[0] = 0;
-
-        for (int i = 0; i < numKeys; i++) {
-            outColumns[i] = i + 1;
-            projectionList[i + 1] = i + 1;
-        }
-        return new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-    }
-
-    @SuppressWarnings("unchecked")
-    private static RecordDescriptor computePayloadKeyRecordDescriptor(AqlCompiledDatasetDecl compiledDatasetDecl,
-            ISerializerDeserializer payloadSerde, IDataFormat dataFormat) throws AlgebricksException {
-
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        ISerializerDeserializer[] recordFields = new ISerializerDeserializer[1 + numKeys];
-        recordFields[0] = payloadSerde;
-        int index = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = dataFormat.getSerdeProvider().getSerializerDeserializer(keyType);
-            recordFields[index + 1] = keySerde;
-            index++;
-        }
-        return new RecordDescriptor(recordFields);
-    }
-
-    private static String stringOf(FileSplit fs) {
-        return fs.getNodeName() + ":" + fs.getLocalFile().toString();
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
index f9ac244..dbbbe44 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
@@ -1,860 +1,65 @@
 package edu.uci.ics.asterix.file;
 
-import java.io.DataOutput;
-import java.util.List;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.aql.translator.DdlTranslator.CompiledIndexDropStatement;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryTokenizerFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
 import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledCreateIndexStatement;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ISerializerDeserializerProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledIndexDropStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-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.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDropOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.invertedindex.dataflow.BinaryTokenizerOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.IBinaryTokenizerFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.dataflow.RTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.tuples.RTreeTypeAwareTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
 
 public class IndexOperations {
 
     private static final PhysicalOptimizationConfig physicalOptimizationConfig = OptimizationConfUtil
             .getPhysicalOptimizationConfig();
 
-    private static final Logger LOGGER = Logger.getLogger(IndexOperations.class.getName());
-
-    public static JobSpecification buildCreateIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
-
-        switch (createIndexStmt.getIndexType()) {
-            case BTREE: {
-                return createBtreeIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case RTREE: {
-                return createRtreeIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case KEYWORD: {
-                return createKeywordIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case QGRAM: {
-                // return createQgramIndexJobSpec(createIndexStmt,
-                // datasetDecls);
-            }
-
-            default: {
-                throw new AsterixException("Unknown Index Type: " + createIndexStmt.getIndexType());
-            }
-
-        }
+    public static JobSpecification buildSecondaryIndexCreationJobSpec(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
+        SecondaryIndexCreator secondaryIndexCreator = SecondaryIndexCreator.createIndexCreator(createIndexStmt,
+                metadataProvider, physicalOptimizationConfig);
+        return secondaryIndexCreator.buildCreationJobSpec();
     }
 
-    public static JobSpecification createSecondaryIndexDropJobSpec(CompiledIndexDropStatement deleteStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AlgebricksException, MetadataException {
-        String datasetName = deleteStmt.getDatasetName();
-        String indexName = deleteStmt.getIndexName();
+    public static JobSpecification buildSecondaryIndexLoadingJobSpec(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
+        SecondaryIndexCreator secondaryIndexCreator = SecondaryIndexCreator.createIndexCreator(createIndexStmt,
+                metadataProvider, physicalOptimizationConfig);
+        return secondaryIndexCreator.buildLoadingJobSpec();
+    }
+
+    public static JobSpecification buildDropSecondaryIndexJobSpec(CompiledIndexDropStatement indexDropStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, MetadataException {
+        String dataverseName = indexDropStmt.getDataverseName() == null ? metadataProvider.getDefaultDataverseName()
+                : indexDropStmt.getDataverseName();
+        String datasetName = indexDropStmt.getDatasetName();
+        String indexName = indexDropStmt.getIndexName();
 
         JobSpecification spec = new JobSpecification();
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
-        TreeIndexDropOperatorDescriptor btreeDrop = new TreeIndexDropOperatorDescriptor(spec, storageManager,
-                btreeRegistryProvider, splitsAndConstraint.first);
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, indexName);
+        IndexDropOperatorDescriptor btreeDrop = new IndexDropOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES));
         AlgebricksPartitionConstraintHelper
                 .setPartitionConstraintInJobSpec(spec, btreeDrop, splitsAndConstraint.second);
         spec.addRoot(btreeDrop);
 
         return spec;
     }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createBtreeIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String datasetName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
-        }
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializer payloadSerde = AqlSerializerDeserializerProvider.INSTANCE
-                .getSerializerDeserializer(itemType);
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + datasetName + ").");
-        }
-
-        AqlCompiledDatasetDecl srcCompiledDatasetDecl = compiledDatasetDecl;
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // ---------- START GENERAL BTREE STUFF
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        try {
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        } // dummy field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        ISerializerDeserializerProvider serdeProvider = metadata.getFormat().getSerdeProvider();
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(srcCompiledDatasetDecl);
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numSecondaryKeys];
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[numSecondaryKeys
-                + numPrimaryKeys];
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            evalFactories[i] = metadata.getFormat().getFieldAccessEvaluatorFactory(itemType, secondaryKeyFields.get(i),
-                    numPrimaryKeys);
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(i), itemType);
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            secondaryRecFields[i] = keySerde;
-            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-        }
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numSecondaryKeys + i] = primaryRecFields[i];
-            secondaryComparatorFactories[numSecondaryKeys + i] = primaryComparatorFactories[i];
-            secondaryTypeTraits[numSecondaryKeys + i] = primaryTypeTraits[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numSecondaryKeys];
-        int[] projectionList = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numSecondaryKeys; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START EXTERNAL SORT OP
-
-        int[] sortFields = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys + numPrimaryKeys; i++)
-            sortFields[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> sorterSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
-                physicalOptimizationConfig.getMaxFramesExternalSort(), sortFields, secondaryComparatorFactories,
-                secondaryRecDesc);
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp,
-                sorterSplitsAndConstraint.second);
-
-        // ---------- END EXTERNAL SORT OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        int[] fieldPermutation = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys + numPrimaryKeys; i++)
-            fieldPermutation[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, secondaryIndexName);
-
-        // GlobalConfig.DEFAULT_BTREE_FILL_FACTOR
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                secondaryComparatorFactories, fieldPermutation, 0.7f, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, sortOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-
-    }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createRtreeIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String primaryIndexName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(primaryIndexName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + primaryIndexName);
-        }
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializerProvider serdeProvider = metadata.getFormat().getSerdeProvider();
-        ISerializerDeserializer payloadSerde = serdeProvider.getSerializerDeserializer(itemType);
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + primaryIndexName + ").");
-        }
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        try {
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        } // dummy field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        serdeProvider = metadata.getFormat().getSerdeProvider();
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-
-        if (numSecondaryKeys != 1) {
-            throw new AsterixException(
-                    "Cannot use "
-                            + numSecondaryKeys
-                            + " fields as a key for the R-tree index. There can be only one field as a key for the R-tree index.");
-        }
-
-        IAType spatialType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(0), itemType);
-        if (spatialType == null) {
-            throw new AsterixException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
-        }
-
-        int dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
-        int numNestedSecondaryKeyFields = dimension * 2;
-
-        IEvaluatorFactory[] evalFactories = metadata.getFormat().createMBRFactory(itemType, secondaryKeyFields.get(0),
-                numPrimaryKeys, dimension);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys
-                + numNestedSecondaryKeyFields];
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[numNestedSecondaryKeyFields];
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numNestedSecondaryKeyFields + numPrimaryKeys];
-        IPrimitiveValueProviderFactory[] valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
-
-        IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(0), itemType);
-        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(nestedKeyType);
-            secondaryRecFields[i] = keySerde;
-            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    nestedKeyType, OrderKind.ASC);
-            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
-            valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
-        }
-
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numNestedSecondaryKeyFields + i] = primaryRecFields[i];
-            secondaryTypeTraits[numNestedSecondaryKeyFields + i] = primaryTypeTraits[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numNestedSecondaryKeyFields];
-        int[] projectionList = new int[numNestedSecondaryKeyFields + numPrimaryKeys];
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        /*
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = JobGenHelper.createRTreeNSMInteriorFrameFactory(
-                secondaryTypeTraits, numNestedSecondaryKeyFields);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = JobGenHelper.createRTreeNSMLeafFrameFactory(
-                secondaryTypeTraits, numNestedSecondaryKeyFields);
-        */
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = new RTreeNSMInteriorFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(secondaryTypeTraits), valueProviderFactories);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = new RTreeNSMLeafFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(secondaryTypeTraits), valueProviderFactories);
-
-        int[] fieldPermutation = new int[numNestedSecondaryKeyFields + numPrimaryKeys];
-        for (i = 0; i < numNestedSecondaryKeyFields + numPrimaryKeys; i++)
-            fieldPermutation[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, secondaryIndexName);
-
-        // GlobalConfig.DEFAULT_BTREE_FILL_FACTOR
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                secondaryComparatorFactories, fieldPermutation, 0.7f, new RTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-
-    }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createKeywordIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String primaryIndexName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = datasetDecls.findDataset(primaryIndexName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + primaryIndexName);
-        }
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + primaryIndexName + ").");
-        }
-        ARecordType itemType = (ARecordType) datasetDecls.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializerProvider serdeProvider = datasetDecls.getFormat().getSerdeProvider();
-        ISerializerDeserializer payloadSerde = serdeProvider.getSerializerDeserializer(itemType);
-
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // sanity
-        if (numPrimaryKeys > 1)
-            throw new AsterixException("Cannot create inverted keyword index on dataset with composite primary key.");
-
-        // sanity
-        IAType fieldsToTokenizeType = AqlCompiledIndexDecl
-                .keyFieldType(createIndexStmt.getKeyFields().get(0), itemType);
-        for (String fieldName : createIndexStmt.getKeyFields()) {
-            IAType nextFieldToTokenizeType = AqlCompiledIndexDecl.keyFieldType(fieldName, itemType);
-            if (nextFieldToTokenizeType.getTypeTag() != fieldsToTokenizeType.getTypeTag()) {
-                throw new AsterixException(
-                        "Cannot create inverted keyword index. Fields to tokenize must be of the same type.");
-            }
-        }
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        try {
-            tb.reset();
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos); // dummy
-            // field
-            tb.addFieldEndOffset();
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        }
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numSecondaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            evalFactories[i] = datasetDecls.getFormat().getFieldAccessEvaluatorFactory(itemType,
-                    secondaryKeyFields.get(i), numPrimaryKeys);
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(i), itemType);
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            secondaryRecFields[i] = keySerde;
-        }
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numSecondaryKeys + i] = primaryRecFields[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numSecondaryKeys];
-        int[] projectionList = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numSecondaryKeys; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START TOKENIZER OP
-
-        int numTokenKeyPairFields = numPrimaryKeys + 1;
-
-        ISerializerDeserializer[] tokenKeyPairFields = new ISerializerDeserializer[numTokenKeyPairFields];
-        tokenKeyPairFields[0] = serdeProvider.getSerializerDeserializer(fieldsToTokenizeType);
-        for (i = 0; i < numPrimaryKeys; i++)
-            tokenKeyPairFields[i + 1] = secondaryRecFields[numSecondaryKeys + i];
-        RecordDescriptor tokenKeyPairRecDesc = new RecordDescriptor(tokenKeyPairFields);
-
-        int[] fieldsToTokenize = new int[numSecondaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++)
-            fieldsToTokenize[i] = i;
-
-        int[] primaryKeyFields = new int[numPrimaryKeys];
-        for (i = 0; i < numPrimaryKeys; i++)
-            primaryKeyFields[i] = numSecondaryKeys + i;
-
-        IBinaryTokenizerFactory tokenizerFactory = AqlBinaryTokenizerFactoryProvider.INSTANCE
-                .getTokenizerFactory(fieldsToTokenizeType);
-        BinaryTokenizerOperatorDescriptor tokenizerOp = new BinaryTokenizerOperatorDescriptor(spec,
-                tokenKeyPairRecDesc, tokenizerFactory, fieldsToTokenize, primaryKeyFields);
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, secondaryIndexName);
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, tokenizerOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END TOKENIZER OP
-
-        // ---------- START EXTERNAL SORT OP
-
-        IBinaryComparatorFactory[] tokenKeyPairComparatorFactories = new IBinaryComparatorFactory[numTokenKeyPairFields];
-        tokenKeyPairComparatorFactories[0] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                fieldsToTokenizeType, OrderKind.ASC);
-        for (i = 0; i < numPrimaryKeys; i++)
-            tokenKeyPairComparatorFactories[i + 1] = primaryComparatorFactories[i];
-
-        int[] sortFields = new int[numTokenKeyPairFields]; // <token, primary
-        // key a, primary
-        // key b, etc.>
-        for (i = 0; i < numTokenKeyPairFields; i++)
-            sortFields[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> sorterSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
-                physicalOptimizationConfig.getMaxFramesExternalSort(), sortFields, tokenKeyPairComparatorFactories,
-                secondaryRecDesc);
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp,
-                sorterSplitsAndConstraint.second);
-
-        // ---------- END EXTERNAL SORT OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numTokenKeyPairFields];
-        secondaryTypeTraits[0] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(fieldsToTokenizeType);
-        for (i = 0; i < numPrimaryKeys; i++)
-            secondaryTypeTraits[i + 1] = primaryTypeTraits[i];
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        int[] fieldPermutation = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numTokenKeyPairFields; i++)
-            fieldPermutation[i] = i;
-
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                tokenKeyPairComparatorFactories, fieldPermutation, 0.7f, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, tokenizerOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), tokenizerOp, 0, sortOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/abehm/workspace/asterix/asterix-app/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-
-        }
-
-        // int port = HyracksIntegrationUtil.DEFAULT_HYRACKS_CC_PORT;
-
-        // AsterixJavaClient q = compileQuery(ddlFile, true, false, true);
-
-        // long start = System.currentTimeMillis();
-        // q.execute(port);
-        // long end = System.currentTimeMillis();
-        // System.err.println(start + " " + end + " " + (end - start));
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
new file mode 100644
index 0000000..2a1349b
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
@@ -0,0 +1,105 @@
+package edu.uci.ics.asterix.file;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+public class SecondaryBTreeCreator extends SecondaryIndexCreator {
+
+    protected SecondaryBTreeCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(
+                secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, secondaryBloomFilterKeyFields, false,
+                GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMBTreeResource);
+
+        TreeIndexCreateOperatorDescriptor secondaryIndexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
+                secondaryBloomFilterKeyFields, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), localResourceFactoryProvider,
+                NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(secondaryIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan. 
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp, numSecondaryKeys);
+
+        // If any of the secondary fields are nullable, then add a select op that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numSecondaryKeys);
+        }
+
+        // Sort by secondary keys.
+        ExternalSortOperatorDescriptor sortOp = createSortOp(spec, secondaryComparatorFactories, secondaryRecDesc);
+
+        // Create secondary BTree bulk load op.
+        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = createTreeIndexBulkLoadOp(spec, numSecondaryKeys,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), BTree.DEFAULT_FILL_FACTOR);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, sortOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, sortOp, 0);
+        }
+        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
+        spec.addRoot(secondaryBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
new file mode 100644
index 0000000..e7c2e3e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
@@ -0,0 +1,373 @@
+/*
+ * 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.file;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryBooleanInspectorImpl;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetCardinalityHint;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.evaluators.functions.AndDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.IsNullDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NotDescriptor;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+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.evaluators.ColumnAccessEvalFactory;
+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.StreamSelectRuntimeFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+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.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
+import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+
+@SuppressWarnings("rawtypes")
+// TODO: We should eventually have a hierarchy of classes that can create all possible index job specs, 
+// not just for creation.
+public abstract class SecondaryIndexCreator {
+    protected final PhysicalOptimizationConfig physOptConf;
+
+    protected int numPrimaryKeys;
+    protected int numSecondaryKeys;
+    protected AqlMetadataProvider metadataProvider;
+    protected String dataverseName;
+    protected String datasetName;
+    protected Dataset dataset;
+    protected ARecordType itemType;
+    protected ISerializerDeserializer payloadSerde;
+    protected IFileSplitProvider primaryFileSplitProvider;
+    protected AlgebricksPartitionConstraint primaryPartitionConstraint;
+    protected IFileSplitProvider secondaryFileSplitProvider;
+    protected AlgebricksPartitionConstraint secondaryPartitionConstraint;
+    protected String secondaryIndexName;
+    protected boolean anySecondaryKeyIsNullable = false;
+
+    protected long numElementsHint;
+    protected IBinaryComparatorFactory[] primaryComparatorFactories;
+    protected int[] primaryBloomFilterKeyFields;
+    protected RecordDescriptor primaryRecDesc;
+    protected IBinaryComparatorFactory[] secondaryComparatorFactories;
+    protected int[] secondaryBloomFilterKeyFields;
+    protected RecordDescriptor secondaryRecDesc;
+    protected ICopyEvaluatorFactory[] secondaryFieldAccessEvalFactories;
+
+    // Prevent public construction. Should be created via createIndexCreator().
+    protected SecondaryIndexCreator(PhysicalOptimizationConfig physOptConf) {
+        this.physOptConf = physOptConf;
+    }
+
+    public static SecondaryIndexCreator createIndexCreator(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider, PhysicalOptimizationConfig physOptConf) throws AsterixException,
+            AlgebricksException {
+        SecondaryIndexCreator indexCreator = null;
+        switch (createIndexStmt.getIndexType()) {
+            case BTREE: {
+                indexCreator = new SecondaryBTreeCreator(physOptConf);
+                break;
+            }
+            case RTREE: {
+                indexCreator = new SecondaryRTreeCreator(physOptConf);
+                break;
+            }
+            case WORD_INVIX:
+            case NGRAM_INVIX:
+            case FUZZY_WORD_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                indexCreator = new SecondaryInvertedIndexCreator(physOptConf);
+                break;
+            }
+            default: {
+                throw new AsterixException("Unknown Index Type: " + createIndexStmt.getIndexType());
+            }
+        }
+        indexCreator.init(createIndexStmt, metadataProvider);
+        return indexCreator;
+    }
+
+    public abstract JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException;
+
+    public abstract JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException;
+
+    protected void init(CompiledCreateIndexStatement createIndexStmt, AqlMetadataProvider metadataProvider)
+            throws AsterixException, AlgebricksException {
+        this.metadataProvider = metadataProvider;
+        dataverseName = createIndexStmt.getDataverseName() == null ? metadataProvider.getDefaultDataverseName()
+                : createIndexStmt.getDataverseName();
+        datasetName = createIndexStmt.getDatasetName();
+        secondaryIndexName = createIndexStmt.getIndexName();
+        dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Unknown dataset " + datasetName);
+        }
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            throw new AsterixException("Cannot index an external dataset (" + datasetName + ").");
+        }
+        itemType = (ARecordType) metadataProvider.findType(dataset.getDataverseName(), dataset.getItemTypeName());
+        payloadSerde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(itemType);
+        numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+        numSecondaryKeys = createIndexStmt.getKeyFields().size();
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
+        primaryFileSplitProvider = primarySplitsAndConstraint.first;
+        primaryPartitionConstraint = primarySplitsAndConstraint.second;
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName,
+                        secondaryIndexName);
+        secondaryFileSplitProvider = secondarySplitsAndConstraint.first;
+        secondaryPartitionConstraint = secondarySplitsAndConstraint.second;
+        // Must be called in this order.
+        setPrimaryRecDescAndComparators();
+        setSecondaryRecDescAndComparators(createIndexStmt, metadataProvider);
+
+        String numElementsHintString = dataset.getHints().get("CARDINALITY");
+        if (numElementsHintString == null) {
+            numElementsHint = DatasetCardinalityHint.DEFAULT;
+        } else {
+            numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
+        }
+    }
+
+    protected void setPrimaryRecDescAndComparators() throws AlgebricksException {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numPrimaryKeys = partitioningKeys.size();
+        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
+        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
+        primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
+        primaryBloomFilterKeyFields = new int[numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = metadataProvider.getFormat().getSerdeProvider();
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+            primaryRecFields[i] = serdeProvider.getSerializerDeserializer(keyType);
+            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                    keyType, true);
+            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+            primaryBloomFilterKeyFields[i] = i;
+        }
+        primaryRecFields[numPrimaryKeys] = payloadSerde;
+        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
+        primaryRecDesc = new RecordDescriptor(primaryRecFields, primaryTypeTraits);
+    }
+
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, AsterixException {
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        secondaryFieldAccessEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeys];
+        secondaryComparatorFactories = new IBinaryComparatorFactory[numSecondaryKeys + numPrimaryKeys];
+        secondaryBloomFilterKeyFields = new int[numSecondaryKeys];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = metadataProvider.getFormat().getSerdeProvider();
+        ITypeTraitProvider typeTraitProvider = metadataProvider.getFormat().getTypeTraitProvider();
+        IBinaryComparatorFactoryProvider comparatorFactoryProvider = metadataProvider.getFormat()
+                .getBinaryComparatorFactoryProvider();
+        for (int i = 0; i < numSecondaryKeys; i++) {
+            secondaryFieldAccessEvalFactories[i] = metadataProvider.getFormat().getFieldAccessEvaluatorFactory(
+                    itemType, secondaryKeyFields.get(i), numPrimaryKeys);
+            Pair<IAType, Boolean> keyTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(i), itemType);
+            IAType keyType = keyTypePair.first;
+            anySecondaryKeyIsNullable = anySecondaryKeyIsNullable || keyTypePair.second;
+            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryComparatorFactories[i] = comparatorFactoryProvider.getBinaryComparatorFactory(keyType, true);
+            secondaryTypeTraits[i] = typeTraitProvider.getTypeTrait(keyType);
+            secondaryBloomFilterKeyFields[i] = i;
+        }
+        // Add serializers and comparators for primary index fields.
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            secondaryRecFields[numSecondaryKeys + i] = primaryRecDesc.getFields()[i];
+            secondaryTypeTraits[numSecondaryKeys + i] = primaryRecDesc.getTypeTraits()[i];
+            secondaryComparatorFactories[numSecondaryKeys + i] = primaryComparatorFactories[i];
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+    }
+
+    protected AbstractOperatorDescriptor createDummyKeyProviderOp(JobSpecification spec) throws AsterixException,
+            AlgebricksException {
+        // Build dummy tuple containing one field with a dummy value inside.
+        ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
+        DataOutput dos = tb.getDataOutput();
+        tb.reset();
+        try {
+            // Serialize dummy value into a field.
+            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+        // Add dummy field.
+        tb.addFieldEndOffset();
+        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
+        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
+        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
+                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
+                primaryPartitionConstraint);
+        return keyProviderOp;
+    }
+
+    protected BTreeSearchOperatorDescriptor createPrimaryIndexScanOp(JobSpecification spec) throws AlgebricksException {
+        // -Infinity
+        int[] lowKeyFields = null;
+        // +Infinity
+        int[] highKeyFields = null;
+        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                primaryFileSplitProvider, primaryRecDesc.getTypeTraits(), primaryComparatorFactories,
+                primaryBloomFilterKeyFields, lowKeyFields, highKeyFields, true, true,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), false, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
+                primaryPartitionConstraint);
+        return primarySearchOp;
+    }
+
+    protected AlgebricksMetaOperatorDescriptor createAssignOp(JobSpecification spec,
+            BTreeSearchOperatorDescriptor primaryScanOp, int numSecondaryKeyFields) throws AlgebricksException {
+        int[] outColumns = new int[numSecondaryKeyFields];
+        int[] projectionList = new int[numSecondaryKeyFields + numPrimaryKeys];
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            outColumns[i] = numPrimaryKeys + i + 1;
+        }
+        int projCount = 0;
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            projectionList[projCount++] = numPrimaryKeys + i + 1;
+        }
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            projectionList[projCount++] = i;
+        }
+        IScalarEvaluatorFactory[] sefs = new IScalarEvaluatorFactory[secondaryFieldAccessEvalFactories.length];
+        for (int i = 0; i < secondaryFieldAccessEvalFactories.length; ++i) {
+            sefs[i] = new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(
+                    secondaryFieldAccessEvalFactories[i]);
+        }
+        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, sefs, projectionList);
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
+                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
+                primaryPartitionConstraint);
+        return asterixAssignOp;
+    }
+
+    protected ExternalSortOperatorDescriptor createSortOp(JobSpecification spec,
+            IBinaryComparatorFactory[] secondaryComparatorFactories, RecordDescriptor secondaryRecDesc) {
+        int[] sortFields = new int[secondaryComparatorFactories.length];
+        for (int i = 0; i < secondaryComparatorFactories.length; i++) {
+            sortFields[i] = i;
+        }
+        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
+                physOptConf.getMaxFramesExternalSort(), sortFields, secondaryComparatorFactories, secondaryRecDesc);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp, primaryPartitionConstraint);
+        return sortOp;
+    }
+
+    protected TreeIndexBulkLoadOperatorDescriptor createTreeIndexBulkLoadOp(JobSpecification spec,
+            int numSecondaryKeyFields, IIndexDataflowHelperFactory dataflowHelperFactory, float fillFactor)
+            throws MetadataException, AlgebricksException {
+        int[] fieldPermutation = new int[numSecondaryKeyFields + numPrimaryKeys];
+        for (int i = 0; i < numSecondaryKeyFields + numPrimaryKeys; i++) {
+            fieldPermutation[i] = i;
+        }
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName,
+                        secondaryIndexName);
+        TreeIndexBulkLoadOperatorDescriptor treeIndexBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                secondarySplitsAndConstraint.first, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
+                secondaryBloomFilterKeyFields, fieldPermutation, fillFactor, false, numElementsHint,
+                dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, treeIndexBulkLoadOp,
+                secondarySplitsAndConstraint.second);
+        return treeIndexBulkLoadOp;
+    }
+
+    public AlgebricksMetaOperatorDescriptor createFilterNullsSelectOp(JobSpecification spec, int numSecondaryKeyFields)
+            throws AlgebricksException {
+        ICopyEvaluatorFactory[] andArgsEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeyFields];
+        NotDescriptor notDesc = new NotDescriptor();
+        IsNullDescriptor isNullDesc = new IsNullDescriptor();
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            // Access column i, and apply 'is not null'.
+            ColumnAccessEvalFactory columnAccessEvalFactory = new ColumnAccessEvalFactory(i);
+            ICopyEvaluatorFactory isNullEvalFactory = isNullDesc
+                    .createEvaluatorFactory(new ICopyEvaluatorFactory[] { columnAccessEvalFactory });
+            ICopyEvaluatorFactory notEvalFactory = notDesc
+                    .createEvaluatorFactory(new ICopyEvaluatorFactory[] { isNullEvalFactory });
+            andArgsEvalFactories[i] = notEvalFactory;
+        }
+        ICopyEvaluatorFactory selectCond = null;
+        if (numSecondaryKeyFields > 1) {
+            // Create conjunctive condition where all secondary index keys must satisfy 'is not null'.
+            AndDescriptor andDesc = new AndDescriptor();
+            selectCond = andDesc.createEvaluatorFactory(andArgsEvalFactories);
+        } else {
+            selectCond = andArgsEvalFactories[0];
+        }
+        StreamSelectRuntimeFactory select = new StreamSelectRuntimeFactory(
+                new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(selectCond),
+                null, AqlBinaryBooleanInspectorImpl.FACTORY);
+        AlgebricksMetaOperatorDescriptor asterixSelectOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
+                new IPushRuntimeFactory[] { select }, new RecordDescriptor[] { secondaryRecDesc });
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixSelectOp,
+                primaryPartitionConstraint);
+        return asterixSelectOp;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
new file mode 100644
index 0000000..0bf379d
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
@@ -0,0 +1,278 @@
+package edu.uci.ics.asterix.file;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.runtime.formats.FormatUtils;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMInvertedIndexLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.ShortPointable;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.ShortSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.BinaryTokenizerOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.PartitionedLSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+public class SecondaryInvertedIndexCreator extends SecondaryIndexCreator {
+
+    private IAType secondaryKeyType;
+    private ITypeTraits[] invListsTypeTraits;
+    private IBinaryComparatorFactory[] tokenComparatorFactories;
+    private ITypeTraits[] tokenTypeTraits;
+    private IBinaryTokenizerFactory tokenizerFactory;
+    // For tokenization, sorting and loading. Represents <token, primary keys>.
+    private int numTokenKeyPairFields;
+    private IBinaryComparatorFactory[] tokenKeyPairComparatorFactories;
+    private RecordDescriptor tokenKeyPairRecDesc;
+    private boolean isPartitioned;
+
+    protected SecondaryInvertedIndexCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    @SuppressWarnings("rawtypes")
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadata) throws AlgebricksException, AsterixException {
+        // Sanity checks.
+        if (numPrimaryKeys > 1) {
+            throw new AsterixException("Cannot create inverted index on dataset with composite primary key.");
+        }
+        if (numSecondaryKeys > 1) {
+            throw new AsterixException("Cannot create composite inverted index on multiple fields.");
+        }
+        if (createIndexStmt.getIndexType() == IndexType.FUZZY_WORD_INVIX
+                || createIndexStmt.getIndexType() == IndexType.FUZZY_NGRAM_INVIX) {
+            isPartitioned = true;
+        } else {
+            isPartitioned = false;
+        }
+        // Prepare record descriptor used in the assign op, and the optional
+        // select op.
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        secondaryFieldAccessEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeys];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = FormatUtils.getDefaultFormat().getSerdeProvider();
+        ITypeTraitProvider typeTraitProvider = FormatUtils.getDefaultFormat().getTypeTraitProvider();
+        for (int i = 0; i < numSecondaryKeys; i++) {
+            secondaryFieldAccessEvalFactories[i] = FormatUtils.getDefaultFormat().getFieldAccessEvaluatorFactory(
+                    itemType, secondaryKeyFields.get(i), numPrimaryKeys);
+            Pair<IAType, Boolean> keyTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(i), itemType);
+            secondaryKeyType = keyTypePair.first;
+            anySecondaryKeyIsNullable = anySecondaryKeyIsNullable || keyTypePair.second;
+            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(secondaryKeyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryTypeTraits[i] = typeTraitProvider.getTypeTrait(secondaryKeyType);
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+        // Comparators and type traits for tokens.
+        int numTokenFields = (!isPartitioned) ? numSecondaryKeys : numSecondaryKeys + 1;
+        tokenComparatorFactories = new IBinaryComparatorFactory[numTokenFields];
+        tokenTypeTraits = new ITypeTraits[numTokenFields];
+        tokenComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+        tokenTypeTraits[0] = NonTaggedFormatUtil.getTokenTypeTrait(secondaryKeyType);
+        if (isPartitioned) {
+            // The partitioning field is hardcoded to be a short *without* an Asterix type tag.
+            tokenComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
+            tokenTypeTraits[1] = ShortPointable.TYPE_TRAITS;
+        }
+        // Set tokenizer factory.
+        // TODO: We might want to expose the hashing option at the AQL level,
+        // and add the choice to the index metadata.
+        tokenizerFactory = NonTaggedFormatUtil.getBinaryTokenizerFactory(secondaryKeyType.getTypeTag(),
+                createIndexStmt.getIndexType(), createIndexStmt.getGramLength());
+        // Type traits for inverted-list elements. Inverted lists contain
+        // primary keys.
+        invListsTypeTraits = new ITypeTraits[numPrimaryKeys];
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            invListsTypeTraits[i] = primaryRecDesc.getTypeTraits()[i];
+        }
+        // For tokenization, sorting and loading.
+        // One token (+ optional partitioning field) + primary keys.
+        numTokenKeyPairFields = (!isPartitioned) ? 1 + numPrimaryKeys : 2 + numPrimaryKeys;
+        ISerializerDeserializer[] tokenKeyPairFields = new ISerializerDeserializer[numTokenKeyPairFields];
+        ITypeTraits[] tokenKeyPairTypeTraits = new ITypeTraits[numTokenKeyPairFields];
+        tokenKeyPairComparatorFactories = new IBinaryComparatorFactory[numTokenKeyPairFields];
+        tokenKeyPairFields[0] = serdeProvider.getSerializerDeserializer(secondaryKeyType);
+        tokenKeyPairTypeTraits[0] = tokenTypeTraits[0];
+        tokenKeyPairComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+        int pkOff = 1;
+        if (isPartitioned) {
+            tokenKeyPairFields[1] = ShortSerializerDeserializer.INSTANCE;
+            tokenKeyPairTypeTraits[1] = tokenTypeTraits[1];
+            tokenKeyPairComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
+            pkOff = 2;
+        }
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            tokenKeyPairFields[i + pkOff] = primaryRecDesc.getFields()[i];
+            tokenKeyPairTypeTraits[i + pkOff] = primaryRecDesc.getTypeTraits()[i];
+            tokenKeyPairComparatorFactories[i + pkOff] = primaryComparatorFactories[i];
+        }
+        tokenKeyPairRecDesc = new RecordDescriptor(tokenKeyPairFields, tokenKeyPairTypeTraits);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMInvertedIndexLocalResourceMetadata(invListsTypeTraits,
+                primaryComparatorFactories, tokenTypeTraits, tokenComparatorFactories, tokenizerFactory,
+                GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES, isPartitioned);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMInvertedIndexResource);
+
+        IIndexDataflowHelperFactory dataflowHelperFactory = createDataflowHelperFactory();
+        LSMInvertedIndexCreateOperatorDescriptor invIndexCreateOp = new LSMInvertedIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, secondaryFileSplitProvider,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, tokenTypeTraits, tokenComparatorFactories,
+                invListsTypeTraits, primaryComparatorFactories, tokenizerFactory, dataflowHelperFactory,
+                localResourceFactoryProvider, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, invIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(invIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan.
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp, numSecondaryKeys);
+
+        // If any of the secondary fields are nullable, then add a select op
+        // that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numSecondaryKeys);
+        }
+
+        // Create a tokenizer op.
+        AbstractOperatorDescriptor tokenizerOp = createTokenizerOp(spec);
+
+        // Sort by token + primary keys.
+        ExternalSortOperatorDescriptor sortOp = createSortOp(spec, tokenKeyPairComparatorFactories, tokenKeyPairRecDesc);
+
+        // Create secondary inverted index bulk load op.
+        LSMInvertedIndexBulkLoadOperatorDescriptor invIndexBulkLoadOp = createInvertedIndexBulkLoadOp(spec);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, tokenizerOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, tokenizerOp, 0);
+        }
+        spec.connect(new OneToOneConnectorDescriptor(spec), tokenizerOp, 0, sortOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, invIndexBulkLoadOp, 0);
+        spec.addRoot(invIndexBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    private AbstractOperatorDescriptor createTokenizerOp(JobSpecification spec) throws AlgebricksException {
+        int docField = 0;
+        int[] primaryKeyFields = new int[numPrimaryKeys];
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            primaryKeyFields[i] = numSecondaryKeys + i;
+        }
+        BinaryTokenizerOperatorDescriptor tokenizerOp = new BinaryTokenizerOperatorDescriptor(spec,
+                tokenKeyPairRecDesc, tokenizerFactory, docField, primaryKeyFields, isPartitioned);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, tokenizerOp,
+                primaryPartitionConstraint);
+        return tokenizerOp;
+    }
+
+    @Override
+    protected ExternalSortOperatorDescriptor createSortOp(JobSpecification spec,
+            IBinaryComparatorFactory[] secondaryComparatorFactories, RecordDescriptor secondaryRecDesc) {
+        // Sort on token and primary keys.
+        int[] sortFields = new int[numTokenKeyPairFields];
+        for (int i = 0; i < numTokenKeyPairFields; i++) {
+            sortFields[i] = i;
+        }
+        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
+                physOptConf.getMaxFramesExternalSort(), sortFields, tokenKeyPairComparatorFactories, secondaryRecDesc);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp, primaryPartitionConstraint);
+        return sortOp;
+    }
+
+    private LSMInvertedIndexBulkLoadOperatorDescriptor createInvertedIndexBulkLoadOp(JobSpecification spec) {
+        int[] fieldPermutation = new int[numTokenKeyPairFields];
+        for (int i = 0; i < numTokenKeyPairFields; i++) {
+            fieldPermutation[i] = i;
+        }
+        IIndexDataflowHelperFactory dataflowHelperFactory = createDataflowHelperFactory();
+        LSMInvertedIndexBulkLoadOperatorDescriptor invIndexBulkLoadOp = new LSMInvertedIndexBulkLoadOperatorDescriptor(
+                spec, fieldPermutation, false, numElementsHint, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, tokenTypeTraits,
+                tokenComparatorFactories, invListsTypeTraits, primaryComparatorFactories, tokenizerFactory,
+                dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, invIndexBulkLoadOp,
+                secondaryPartitionConstraint);
+        return invIndexBulkLoadOp;
+    }
+
+    private IIndexDataflowHelperFactory createDataflowHelperFactory() {
+        if (!isPartitioned) {
+            return new LSMInvertedIndexDataflowHelperFactory(
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        } else {
+            return new PartitionedLSMInvertedIndexDataflowHelperFactory(
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
new file mode 100644
index 0000000..6f400f9
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
@@ -0,0 +1,178 @@
+package edu.uci.ics.asterix.file;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMRTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.dataflow.LSMRTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+@SuppressWarnings("rawtypes")
+public class SecondaryRTreeCreator extends SecondaryIndexCreator {
+
+    protected IPrimitiveValueProviderFactory[] valueProviderFactories;
+    protected int numNestedSecondaryKeyFields;
+    protected ATypeTag keyType;
+
+    protected SecondaryRTreeCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMRTreeLocalResourceMetadata(
+                secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, primaryComparatorFactories,
+                valueProviderFactories, RTreePolicyType.RTREE, AqlMetadataProvider.proposeLinearizer(keyType,
+                        secondaryComparatorFactories.length), GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMRTreeResource);
+
+        TreeIndexCreateOperatorDescriptor secondaryIndexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, null,
+                new LSMRTreeDataflowHelperFactory(valueProviderFactories, RTreePolicyType.RTREE,
+                        primaryComparatorFactories, AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, AqlMetadataProvider.proposeLinearizer(
+                                keyType, secondaryComparatorFactories.length),
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                localResourceFactoryProvider, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(secondaryIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadata) throws AlgebricksException, AsterixException {
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        int numSecondaryKeys = secondaryKeyFields.size();
+        if (numSecondaryKeys != 1) {
+            throw new AsterixException(
+                    "Cannot use "
+                            + numSecondaryKeys
+                            + " fields as a key for the R-tree index. There can be only one field as a key for the R-tree index.");
+        }
+        Pair<IAType, Boolean> spatialTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(0), itemType);
+        IAType spatialType = spatialTypePair.first;
+        anySecondaryKeyIsNullable = spatialTypePair.second;
+        if (spatialType == null) {
+            throw new AsterixException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
+        }
+        int numDimensions = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
+        numNestedSecondaryKeyFields = numDimensions * 2;
+        secondaryFieldAccessEvalFactories = metadata.getFormat().createMBRFactory(itemType, secondaryKeyFields.get(0),
+                numPrimaryKeys, numDimensions);
+        secondaryComparatorFactories = new IBinaryComparatorFactory[numNestedSecondaryKeyFields];
+        valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys
+                + numNestedSecondaryKeyFields];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numNestedSecondaryKeyFields + numPrimaryKeys];
+        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(spatialType.getTypeTag());
+        keyType = nestedKeyType.getTypeTag();
+        for (int i = 0; i < numNestedSecondaryKeyFields; i++) {
+            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
+                    .getSerializerDeserializer(nestedKeyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                    nestedKeyType, true);
+            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
+            valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
+        }
+        // Add serializers and comparators for primary index fields.
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            secondaryRecFields[numNestedSecondaryKeyFields + i] = primaryRecDesc.getFields()[i];
+            secondaryTypeTraits[numNestedSecondaryKeyFields + i] = primaryRecDesc.getTypeTraits()[i];
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan. 
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp,
+                numNestedSecondaryKeyFields);
+
+        // If any of the secondary fields are nullable, then add a select op that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numNestedSecondaryKeyFields);
+        }
+
+        // Create secondary RTree bulk load op.
+        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = createTreeIndexBulkLoadOp(
+                spec,
+                numNestedSecondaryKeyFields,
+                new LSMRTreeDataflowHelperFactory(valueProviderFactories, RTreePolicyType.RTREE,
+                        primaryComparatorFactories, AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, AqlMetadataProvider.proposeLinearizer(
+                                keyType, secondaryComparatorFactories.length),
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                BTree.DEFAULT_FILL_FACTOR);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, secondaryBulkLoadOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, secondaryBulkLoadOp, 0);
+        }
+        spec.addRoot(secondaryBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java
deleted file mode 100644
index 91af8de..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java
+++ /dev/null
@@ -1,235 +0,0 @@
-package edu.uci.ics.asterix.file;
-
-import java.io.DataOutput;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectAscBinaryComparatorFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-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.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.misc.PrinterOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class TestKeywordIndexJob {
-
-    private 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);
-    }
-
-    public static int DEFAULT_INPUT_DATA_COLUMN = 0;
-    public static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
-
-    @SuppressWarnings("unchecked")
-    public JobSpecification createJobSpec() throws AsterixException, HyracksDataException {
-
-        JobSpecification spec = new JobSpecification();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        List<String> nodeGroup = new ArrayList<String>();
-        nodeGroup.add("nc1");
-        nodeGroup.add("nc2");
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        AObjectSerializerDeserializer.INSTANCE.serialize(new AString("Jodi Rotruck"), dos); // dummy
-        // field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { AObjectSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        String[] keyProviderOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            keyProviderOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, keyProviderOp, keyProviderOpLocationConstraint);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START SECONRARY INDEX SCAN
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[2];
-        secondaryTypeTraits[0] = new ITypeTraits() {
-            
-            @Override
-            public boolean isFixedLength() {
-                return false;
-            }
-            
-            @Override
-            public int getFixedLength() {
-                return -1;
-            }
-        };
-        
-        secondaryTypeTraits[1] = new ITypeTraits() {
-            
-            @Override
-            public boolean isFixedLength() {
-                return true;
-            }
-            
-            @Override
-            public int getFixedLength() {
-                return 5;
-            }
-        };
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[2];
-        secondaryRecFields[0] = AObjectSerializerDeserializer.INSTANCE;
-        secondaryRecFields[1] = AObjectSerializerDeserializer.INSTANCE;
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[2];
-        secondaryComparatorFactories[0] = AObjectAscBinaryComparatorFactory.INSTANCE;
-        secondaryComparatorFactories[1] = AObjectAscBinaryComparatorFactory.INSTANCE;
-
-        int[] lowKeyFields = null;
-        int[] highKeyFields = null;
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-        // TODO: change file splits according to mount points in cluster config
-        IFileSplitProvider secondarySplitProvider = new ConstantFileSplitProvider(new FileSplit[] {
-                new FileSplit("nc1", new FileReference(new File("/tmp/nc1/demo1112/Customers_idx_NameInvIndex"))),
-                new FileSplit("nc2", new FileReference(new File("/tmp/nc2/demo1112/Customers_idx_NameInvIndex"))) });
-        BTreeSearchOperatorDescriptor secondarySearchOp = new BTreeSearchOperatorDescriptor(spec, secondaryRecDesc,
-                storageManager, btreeRegistryProvider, secondarySplitProvider, interiorFrameFactory, leafFrameFactory,
-                secondaryTypeTraits, secondaryComparatorFactories, true, lowKeyFields, highKeyFields, true, true,
-                new BTreeDataflowHelperFactory());
-        String[] secondarySearchOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            secondarySearchOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondarySearchOp,
-                secondarySearchOpLocationConstraint);
-
-        // ---------- END SECONDARY INDEX SCAN
-
-        PrinterOperatorDescriptor printer = new PrinterOperatorDescriptor(spec);
-        String[] printerLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            printerLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, printerLocationConstraint);
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, secondarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), secondarySearchOp, 0, printer, 0);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        spec.addRoot(printer);
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/abehm/workspace/asterix/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-        }
-
-        int port = 1098;
-        IHyracksClientConnection hcc = new HyracksConnection(host, port);
-
-        TestKeywordIndexJob tij = new TestKeywordIndexJob();
-        JobSpecification jobSpec = tij.createJobSpec();
-        JobId jobId = hcc.createJob("asterix", jobSpec);
-
-        long start = System.currentTimeMillis();
-        hcc.start(jobId);
-        hcc.waitForCompletion(jobId);
-        long end = System.currentTimeMillis();
-        System.err.println(start + " " + end + " " + (end - start));
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java
deleted file mode 100644
index 025fa16..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java
+++ /dev/null
@@ -1,237 +0,0 @@
-package edu.uci.ics.asterix.file;
-
-import java.io.DataOutput;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.UUID;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectAscBinaryComparatorFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-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.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.misc.PrinterOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class TestSecondaryIndexJob {
-
-    private 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);
-    }
-
-    public static int DEFAULT_INPUT_DATA_COLUMN = 0;
-    public static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
-
-    @SuppressWarnings("unchecked")
-    public JobSpecification createJobSpec() throws AsterixException, HyracksDataException {
-
-        JobSpecification spec = new JobSpecification();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        List<String> nodeGroup = new ArrayList<String>();
-        nodeGroup.add("nc1");
-        nodeGroup.add("nc2");
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        AObjectSerializerDeserializer.INSTANCE.serialize(new AString("Jodi Rotruck"), dos); // dummy
-        // field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { AObjectSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        String[] keyProviderOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            keyProviderOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, keyProviderOp, keyProviderOpLocationConstraint);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START SECONRARY INDEX SCAN
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[2];
-        secondaryTypeTraits[0] = new ITypeTraits() {
-
-            @Override
-            public boolean isFixedLength() {
-                return false;
-            }
-
-            @Override
-            public int getFixedLength() {
-                return -1;
-            }
-        };
-
-        secondaryTypeTraits[1] = new ITypeTraits() {
-
-            @Override
-            public boolean isFixedLength() {
-                return true;
-            }
-
-            @Override
-            public int getFixedLength() {
-                return 5;
-            }
-        };
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[2];
-        secondaryRecFields[0] = AObjectSerializerDeserializer.INSTANCE;
-        secondaryRecFields[1] = AObjectSerializerDeserializer.INSTANCE;
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[2];
-        secondaryComparatorFactories[0] = AObjectAscBinaryComparatorFactory.INSTANCE;
-        secondaryComparatorFactories[1] = AObjectAscBinaryComparatorFactory.INSTANCE;
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-        // TODO: change file splits according to mount points in cluster config
-        IFileSplitProvider secondarySplitProvider = new ConstantFileSplitProvider(new FileSplit[] {
-                new FileSplit("nc1", new FileReference(new File("/tmp/nc1/demo1112/Customers_idx_NameBtreeIndex"))),
-                new FileSplit("nc2", new FileReference(new File("/tmp/nc2/demo1112/Customers_idx_NameBtreeIndex"))) });
-        BTreeSearchOperatorDescriptor secondarySearchOp = new BTreeSearchOperatorDescriptor(spec, secondaryRecDesc,
-                storageManager, btreeRegistryProvider, secondarySplitProvider, interiorFrameFactory, leafFrameFactory,
-                secondaryTypeTraits, secondaryComparatorFactories, true, lowKeyFields, highKeyFields, true, true,
-                new BTreeDataflowHelperFactory());
-        String[] secondarySearchOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            secondarySearchOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondarySearchOp,
-                secondarySearchOpLocationConstraint);
-
-        // ---------- END SECONDARY INDEX SCAN
-
-        PrinterOperatorDescriptor printer = new PrinterOperatorDescriptor(spec);
-        String[] printerLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            printerLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, printerLocationConstraint);
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, secondarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), secondarySearchOp, 0, printer, 0);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        spec.addRoot(printer);
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/nicnic/workspace/asterix/trunk/asterix/asterix-app/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-        }
-
-        int port = 1098;
-        IHyracksClientConnection hcc = new HyracksConnection(host, port);
-
-        TestSecondaryIndexJob tij = new TestSecondaryIndexJob();
-        JobSpecification jobSpec = tij.createJobSpec();
-        JobId jobId = hcc.createJob("asterix", jobSpec);
-
-        long start = System.currentTimeMillis();
-        hcc.start(jobId);
-        hcc.waitForCompletion(jobId);
-        long end = System.currentTimeMillis();
-        System.err.println(start + " " + end + " " + (end - start));
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java
deleted file mode 100644
index dbf1625..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2009-2011 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.Serializable;
-
-public class AsterixNodeState implements Serializable {
-
-    private static final long serialVersionUID = 1L;
-
-    private int apiNodeDataServerPort;
-
-    public int getAPINodeDataServerPort() {
-        return apiNodeDataServerPort;
-    }
-
-    public void setAPINodeDataServerPort(int port) {
-        this.apiNodeDataServerPort = port;
-    }
-
-}
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
new file mode 100644
index 0000000..5ab94f3
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
@@ -0,0 +1,120 @@
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.servlet.ServletContextHandler;
+import org.eclipse.jetty.servlet.ServletHolder;
+
+import edu.uci.ics.asterix.api.http.servlet.APIServlet;
+import edu.uci.ics.asterix.api.http.servlet.DDLAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryResultAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryStatusAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.UpdateAPIServlet;
+import edu.uci.ics.asterix.common.api.AsterixAppContextInfoImpl;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
+import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
+import edu.uci.ics.asterix.metadata.bootstrap.AsterixStateProxy;
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+import edu.uci.ics.hyracks.api.application.ICCApplicationEntryPoint;
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+
+public class CCApplicationEntryPoint implements ICCApplicationEntryPoint {
+    private static final Logger LOGGER = Logger.getLogger(CCApplicationEntryPoint.class.getName());
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final int DEFAULT_WEB_SERVER_PORT = 19001;
+
+    private static final int DEFAULT_JSON_API_SERVER_PORT = 19101;
+
+    private Server webServer;
+    private Server jsonAPIServer;
+    private static IAsterixStateProxy proxy;
+    private ICCApplicationContext appCtx;
+
+    @Override
+    public void start(ICCApplicationContext ccAppCtx, String[] args) throws Exception {
+        this.appCtx = ccAppCtx;
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Starting Asterix cluster controller");
+        }
+
+        proxy = AsterixStateProxy.registerRemoteObject();
+        proxy.setAsterixProperties(AsterixProperties.INSTANCE);
+        appCtx.setDistributedState(proxy);
+
+        MetadataManager.INSTANCE = new MetadataManager(proxy);
+
+        setupWebServer();
+        webServer.start();
+
+        // Setup and start the web interface
+        setupJSONAPIServer();
+        jsonAPIServer.start();
+
+        AsterixAppContextInfoImpl.initialize(appCtx);
+    }
+
+    @Override
+    public void stop() throws Exception {
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Stopping Asterix cluster controller");
+        }
+        AsterixStateProxy.unregisterRemoteObject();
+
+        webServer.stop();
+        jsonAPIServer.stop();
+    }
+
+    private IHyracksClientConnection getNewHyracksClientConnection() throws Exception {
+        String strIP = appCtx.getCCContext().getClusterControllerInfo().getClientNetAddress();
+        int port = appCtx.getCCContext().getClusterControllerInfo().getClientNetPort();
+        return new HyracksConnection(strIP, port);
+    }
+
+    private void setupWebServer() throws Exception {
+        String portStr = System.getProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY);
+        int port = DEFAULT_WEB_SERVER_PORT;
+        if (portStr != null) {
+            port = Integer.parseInt(portStr);
+        }
+        webServer = new Server(port);
+
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/");
+
+        IHyracksClientConnection hcc = getNewHyracksClientConnection();
+        context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+        webServer.setHandler(context);
+        context.addServlet(new ServletHolder(new APIServlet()), "/*");
+    }
+
+    private void setupJSONAPIServer() throws Exception {
+        String portStr = System.getProperty(GlobalConfig.JSON_API_SERVER_PORT_PROPERTY);
+        int port = DEFAULT_JSON_API_SERVER_PORT;
+        if (portStr != null) {
+            port = Integer.parseInt(portStr);
+        }
+        jsonAPIServer = new Server(port);
+
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/");
+
+        IHyracksClientConnection hcc = getNewHyracksClientConnection();
+        context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+        jsonAPIServer.setHandler(context);
+        context.addServlet(new ServletHolder(new QueryAPIServlet()), "/query");
+        context.addServlet(new ServletHolder(new QueryStatusAPIServlet()), "/query/status");
+        context.addServlet(new ServletHolder(new QueryResultAPIServlet()), "/query/result");
+        context.addServlet(new ServletHolder(new UpdateAPIServlet()), "/update");
+        context.addServlet(new ServletHolder(new DDLAPIServlet()), "/ddl");
+    }
+}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java
deleted file mode 100644
index bcbfb8c..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright 2009-2011 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.IOException;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Set;
-import java.util.logging.Logger;
-
-import org.eclipse.jetty.server.Server;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
-
-import edu.uci.ics.asterix.api.aqlj.server.APIClientThreadFactory;
-import edu.uci.ics.asterix.api.aqlj.server.ThreadedServer;
-import edu.uci.ics.asterix.api.http.servlet.APIServlet;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixStateProxy;
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.application.ICCBootstrap;
-
-public class CCBootstrapImpl implements ICCBootstrap {
-    private static final Logger LOGGER = Logger.getLogger(CCBootstrapImpl.class.getName());
-
-    private static final int DEFAULT_WEB_SERVER_PORT = 19001;
-    public static final int DEFAULT_API_SERVER_PORT = 14600;
-    private static final int DEFAULT_API_NODEDATA_SERVER_PORT = 14601;
-
-    private Server server;
-    private static IAsterixStateProxy proxy;
-    private ICCApplicationContext appCtx;
-    private ThreadedServer apiServer;
-
-    @Override
-    public void start() throws Exception {
-        LOGGER.info("Starting Asterix CC Bootstrap");
-        String portStr = System.getProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY);
-        int port = DEFAULT_WEB_SERVER_PORT;
-        if (portStr != null) {
-            port = Integer.parseInt(portStr);
-        }
-        server = new Server(port);
-        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
-        context.setContextPath("/");
-        server.setHandler(context);
-
-        context.addServlet(new ServletHolder(new APIServlet()), "/*");
-        server.start();
-        proxy = AsterixStateProxy.registerRemoteObject();
-        proxy.setAsterixProperties(AsterixProperties.INSTANCE);
-
-        // set the APINodeDataServer ports
-        int startPort = DEFAULT_API_NODEDATA_SERVER_PORT;
-        Map<String, Set<String>> nodeNameMap = new HashMap<String, Set<String>>();
-        try {
-            appCtx.getCCContext().getIPAddressNodeMap(nodeNameMap);
-        } catch (Exception e) {
-            throw new IOException(" unable to obtain IP address node map", e);
-        }
-        for (Map.Entry<String, Set<String>> entry : nodeNameMap.entrySet()) {
-            Set<String> nodeNames = entry.getValue();
-            Iterator<String> it = nodeNames.iterator();
-            while (it.hasNext()) {
-                AsterixNodeState ns = new AsterixNodeState();
-                ns.setAPINodeDataServerPort(startPort);
-                proxy.setAsterixNodeState(it.next(), ns);
-                startPort++;
-            }
-        }
-
-        appCtx.setDistributedState(proxy);
-        MetadataManager.INSTANCE = new MetadataManager(proxy);
-        apiServer = new ThreadedServer(DEFAULT_API_SERVER_PORT, new APIClientThreadFactory(appCtx));
-        apiServer.start();
-    }
-
-    @Override
-    public void stop() throws Exception {
-        LOGGER.info("Stopping Asterix CC Bootstrap");
-        AsterixStateProxy.deRegisterRemoteObject();
-        server.stop();
-        apiServer.shutdown();
-    }
-
-    @Override
-    public void setApplicationContext(ICCApplicationContext appCtx) {
-        this.appCtx = appCtx;
-    }
-
-}
\ No newline at end of file
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
new file mode 100644
index 0000000..f332155
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
@@ -0,0 +1,170 @@
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.rmi.RemoteException;
+import java.rmi.server.UnicastRemoteObject;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+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.transaction.management.resource.PersistentLocalResourceRepository;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager.SystemState;
+import edu.uci.ics.hyracks.api.application.INCApplicationContext;
+import edu.uci.ics.hyracks.api.application.INCApplicationEntryPoint;
+
+public class NCApplicationEntryPoint implements INCApplicationEntryPoint {
+	private static final Logger LOGGER = Logger
+			.getLogger(NCApplicationEntryPoint.class.getName());
+
+	private INCApplicationContext ncApplicationContext = null;
+	private AsterixAppRuntimeContext runtimeContext;
+	private String nodeId;
+	private boolean isMetadataNode = false;
+	private boolean stopInitiated = false;
+	private SystemState systemState = SystemState.NEW_UNIVERSE;
+
+	@Override
+	public void start(INCApplicationContext ncAppCtx, String[] args)
+			throws Exception {
+		ncApplicationContext = ncAppCtx;
+		nodeId = ncApplicationContext.getNodeId();
+		if (LOGGER.isLoggable(Level.INFO)) {
+			LOGGER.info("Starting Asterix node controller: " + nodeId);
+		}
+
+		runtimeContext = new AsterixAppRuntimeContext(ncApplicationContext);
+		runtimeContext.initialize();
+		ncApplicationContext.setApplicationObject(runtimeContext);
+		JVMShutdownHook sHook = new JVMShutdownHook(this);
+		Runtime.getRuntime().addShutdownHook(sHook);
+
+		// #. recover if the system is corrupted by checking system state.
+		IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem()
+				.getRecoveryManager();
+		systemState = recoveryMgr.getSystemState();
+		if (systemState != SystemState.NEW_UNIVERSE) {
+			PersistentLocalResourceRepository localResourceRepository = (PersistentLocalResourceRepository) runtimeContext
+					.getLocalResourceRepository();
+			localResourceRepository.initialize(nodeId, null, false,
+					runtimeContext.getResourceIdFactory());
+		}
+		if (systemState == SystemState.CORRUPTED) {
+			recoveryMgr.startRecovery(true);
+		} else if (systemState == SystemState.NEW_UNIVERSE) {
+			recoveryMgr.checkpoint(true);
+		}
+	}
+
+	@Override
+	public void stop() throws Exception {
+		if (!stopInitiated) {
+		    runtimeContext.setShuttingdown(true);
+			stopInitiated = true;
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Stopping Asterix node controller: " + nodeId);
+			}
+
+			IRecoveryManager recoveryMgr = runtimeContext
+					.getTransactionSubsystem().getRecoveryManager();
+			recoveryMgr.checkpoint(true);
+
+			if (isMetadataNode) {
+				MetadataBootstrap.stopUniverse();
+			}
+			runtimeContext.deinitialize();
+		} else {
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Duplicate attempt to stop ignored: " + nodeId);
+			}
+		}
+	}
+
+	@Override
+	public void notifyStartupComplete() throws Exception {
+		IAsterixStateProxy proxy = (IAsterixStateProxy) ncApplicationContext
+				.getDistributedState();
+
+		if (systemState == SystemState.NEW_UNIVERSE) {
+			PersistentLocalResourceRepository localResourceRepository = (PersistentLocalResourceRepository) runtimeContext
+					.getLocalResourceRepository();
+			System.out.println("nodeid" + nodeId);
+			System.out.println("proxy" + proxy);
+			System.out.println("stores"
+					+ proxy.getAsterixProperties().getStores());
+			System.out.println("store"
+					+ proxy.getAsterixProperties().getStores().get(nodeId)[0]);
+
+			localResourceRepository.initialize(nodeId, proxy
+					.getAsterixProperties().getStores().get(nodeId)[0], true,
+					null);
+		}
+
+		isMetadataNode = nodeId.equals(proxy.getAsterixProperties()
+				.getMetadataNodeName());
+		if (isMetadataNode) {
+			registerRemoteMetadataNode(proxy);
+
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Bootstrapping metadata");
+			}
+			MetadataManager.INSTANCE = new MetadataManager(proxy);
+			MetadataManager.INSTANCE.init();
+			MetadataBootstrap.startUniverse(proxy.getAsterixProperties(),
+					ncApplicationContext,
+					systemState == SystemState.NEW_UNIVERSE);
+			MetadataBootstrap.startDDLRecovery();
+		}
+
+		IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem()
+				.getRecoveryManager();
+		recoveryMgr.checkpoint(true);
+
+		// TODO
+		// reclaim storage for orphaned index artifacts in NCs.
+	}
+
+	public void registerRemoteMetadataNode(IAsterixStateProxy proxy)
+			throws RemoteException {
+		IMetadataNode stub = null;
+		MetadataNode.INSTANCE.initialize(runtimeContext);
+		stub = (IMetadataNode) UnicastRemoteObject.exportObject(
+				MetadataNode.INSTANCE, 0);
+		proxy.setMetadataNode(stub);
+
+		if (LOGGER.isLoggable(Level.INFO)) {
+			LOGGER.info("Metadata node bound");
+		}
+	}
+
+	/**
+	 * Shutdown hook that invokes {@link NCApplicationEntryPoint#stop() stop}
+	 * method.
+	 */
+	private static class JVMShutdownHook extends Thread {
+
+		private final NCApplicationEntryPoint ncAppEntryPoint;
+
+		public JVMShutdownHook(NCApplicationEntryPoint ncAppEntryPoint) {
+			this.ncAppEntryPoint = ncAppEntryPoint;
+		}
+
+		public void run() {
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Shutdown hook in progress");
+			}
+			try {
+				ncAppEntryPoint.stop();
+			} catch (Exception e) {
+				if (LOGGER.isLoggable(Level.WARNING)) {
+					LOGGER.warning("Exception in executing shutdown hook" + e);
+				}
+			}
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java
deleted file mode 100644
index 63fb497..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright 2009-2011 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.rmi.server.UnicastRemoteObject;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.server.NodeDataClientThreadFactory;
-import edu.uci.ics.asterix.api.aqlj.server.ThreadedServer;
-import edu.uci.ics.asterix.api.common.AsterixAppContextInfoImpl;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixAppRuntimeContext;
-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.AsterixProperties;
-import edu.uci.ics.asterix.metadata.bootstrap.MetadataBootstrap;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
-import edu.uci.ics.hyracks.api.application.INCApplicationContext;
-import edu.uci.ics.hyracks.api.application.INCBootstrap;
-
-public class NCBootstrapImpl implements INCBootstrap {
-    private static final Logger LOGGER = Logger.getLogger(NCBootstrapImpl.class.getName());
-
-    public static final int DEFAULT_AQLJ_NODE_DATA_SERVER_PORT = 6061;
-
-    private INCApplicationContext ncAppContext = null;
-
-    private static IMetadataNode metadataNode;
-    private String nodeId;
-
-    private ThreadedServer apiNodeDataServer;
-
-    @Override
-    public void start() throws Exception {
-
-        LOGGER.info("Starting Asterix NC " + nodeId + " Bootstrap");
-        IAsterixStateProxy p = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        LOGGER.info("\nMetadata node " + p.getAsterixProperties().getMetadataNodeName());
-        initializeTransactionSupport(ncAppContext, nodeId);
-        if (nodeId.equals(p.getAsterixProperties().getMetadataNodeName())) {
-            AsterixAppRuntimeContext.initialize(ncAppContext);
-            LOGGER.info("Initialized AsterixRuntimeContext: " + AsterixAppRuntimeContext.getInstance());
-            metadataNode = registerRemoteObject(ncAppContext, p.getAsterixProperties());
-            p.setMetadataNode(metadataNode);
-            MetadataManager.INSTANCE = new MetadataManager(p);
-            LOGGER.info("Bootstrapping Metadata");
-            MetadataManager.INSTANCE.init();
-            MetadataBootstrap.startUniverse(p.getAsterixProperties(), AsterixAppContextInfoImpl.INSTANCE);
-        } else {
-            Thread.sleep(5000);
-            AsterixAppRuntimeContext.initialize(ncAppContext);
-            LOGGER.info("Initialized AsterixRuntimeContext: " + AsterixAppRuntimeContext.getInstance());
-        }
-
-        IAsterixStateProxy proxy = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        AsterixNodeState ns = (AsterixNodeState) proxy.getAsterixNodeState(ncAppContext.getNodeId());
-        apiNodeDataServer = new ThreadedServer(ns.getAPINodeDataServerPort(), new NodeDataClientThreadFactory());
-        apiNodeDataServer.start();
-    }
-
-    public static IMetadataNode registerRemoteObject(INCApplicationContext ncAppContext,
-            AsterixProperties asterixProperties) throws AsterixException {
-        try {
-            TransactionProvider factory = (TransactionProvider) ncAppContext.getApplicationObject();
-            MetadataNode.INSTANCE = new MetadataNode(asterixProperties, AsterixAppContextInfoImpl.INSTANCE, factory);
-            IMetadataNode stub = (IMetadataNode) UnicastRemoteObject.exportObject(MetadataNode.INSTANCE, 0);
-            LOGGER.info("MetadataNode bound.");
-            return stub;
-        } catch (Exception e) {
-            LOGGER.info("MetadataNode exception.");
-            throw new AsterixException(e);
-        }
-    }
-
-    @Override
-    public void stop() throws Exception {
-        LOGGER.info("Stopping Asterix NC Bootstrap");
-        IAsterixStateProxy p = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        if (nodeId.equals(p.getAsterixProperties().getMetadataNodeName())) {
-            MetadataBootstrap.stopUniverse();
-        }
-        AsterixAppRuntimeContext.deinitialize();
-        apiNodeDataServer.shutdown();
-    }
-
-    @Override
-    public void setApplicationContext(INCApplicationContext appCtx) {
-        this.ncAppContext = appCtx;
-        this.nodeId = ncAppContext.getNodeId();
-    }
-
-    private void initializeTransactionSupport(INCApplicationContext ncAppContext, String nodeId) {
-        try {
-            TransactionProvider factory = new TransactionProvider(nodeId);
-            ncAppContext.setApplicationObject(factory);
-        } catch (ACIDException e) {
-            e.printStackTrace();
-            LOGGER.severe(" Could not initialize transaction support ");
-        }
-    }
-}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java
new file mode 100644
index 0000000..48bde1c
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java
@@ -0,0 +1,63 @@
+/*
+ * 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.result;
+
+import java.nio.ByteBuffer;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord.Status;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDatasetReader;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ResultFrameTupleAccessor;
+
+public class ResultReader {
+    private final IHyracksDataset hyracksDataset;
+
+    private IHyracksDatasetReader reader;
+
+    private IFrameTupleAccessor frameTupleAccessor;
+
+    // Number of parallel result reader buffers
+    public static final int NUM_READERS = 1;
+
+    public static final int FRAME_SIZE = GlobalConfig.getFrameSize();
+
+    public ResultReader(IHyracksClientConnection hcc, IHyracksDataset hdc) throws Exception {
+        hyracksDataset = hdc;
+    }
+
+    public void open(JobId jobId, ResultSetId resultSetId) throws HyracksDataException {
+        reader = hyracksDataset.createReader(jobId, resultSetId);
+
+        frameTupleAccessor = new ResultFrameTupleAccessor(FRAME_SIZE);
+    }
+
+    public Status getStatus() {
+        return reader.getResultStatus();
+    }
+
+    public int read(ByteBuffer buffer) throws HyracksDataException {
+        return reader.read(buffer);
+    }
+
+    public IFrameTupleAccessor getFrameTupleAccessor() {
+        return frameTupleAccessor;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
new file mode 100644
index 0000000..dec3128
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
@@ -0,0 +1,82 @@
+/*
+ * 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.result;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+
+public class ResultUtils {
+    public static JSONArray getJSONFromBuffer(ByteBuffer buffer, IFrameTupleAccessor fta) throws HyracksDataException {
+        JSONArray resultRecords = new JSONArray();
+        ByteBufferInputStream bbis = new ByteBufferInputStream();
+
+        try {
+            fta.reset(buffer);
+            for (int tIndex = 0; tIndex < fta.getTupleCount(); tIndex++) {
+                int start = fta.getTupleStartOffset(tIndex);
+                int length = fta.getTupleEndOffset(tIndex) - start;
+                bbis.setByteBuffer(buffer, start);
+                byte[] recordBytes = new byte[length];
+                bbis.read(recordBytes, 0, length);
+                resultRecords.put(new String(recordBytes, 0, length));
+            }
+        } finally {
+            try {
+                bbis.close();
+            } catch (IOException e) {
+                throw new HyracksDataException(e);
+            }
+        }
+        return resultRecords;
+    }
+
+    public static JSONObject getErrorResponse(int errorCode, String errorMessage) {
+        JSONObject errorResp = new JSONObject();
+        JSONArray errorArray = new JSONArray();
+        errorArray.put(errorCode);
+        errorArray.put(errorMessage);
+        try {
+            errorResp.put("error-code", errorArray);
+        } catch (JSONException e) {
+            // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
+        }
+        return errorResp;
+    }
+
+    public static void prettyPrintHTML(PrintWriter out, JSONObject jsonResultObj) {
+        JSONArray resultsWrapper;
+        JSONArray resultsArray;
+        try {
+            resultsWrapper = jsonResultObj.getJSONArray("results");
+            for (int i = 0; i < resultsWrapper.length(); i++) {
+                resultsArray = resultsWrapper.getJSONArray(i);
+                for (int j = 0; j < resultsArray.length(); j++) {
+                    out.print(resultsArray.getString(j));
+                }
+            }
+        } catch (JSONException e) {
+            // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
+        }
+    }
+}
diff --git a/asterix-app/src/main/resources/asterix-idefix.properties b/asterix-app/src/main/resources/asterix-idefix.properties
deleted file mode 100755
index 278bcb4..0000000
--- a/asterix-app/src/main/resources/asterix-idefix.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-nc1.stores=/home/nicnic/Work/Asterix/tests/tpch/nc1data
-nc2.stores=/home/nicnic/Work/Asterix/tests/tpch/nc2data
diff --git a/asterix-app/src/main/resources/asterix-peach.properties b/asterix-app/src/main/resources/asterix-peach.properties
deleted file mode 100644
index 20a6eeb..0000000
--- a/asterix-app/src/main/resources/asterix-peach.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-nc1.stores=/tmp/nc1/
-nc2.stores=/tmp/nc2/
diff --git a/asterix-app/src/main/resources/asterix-rainbow.properties b/asterix-app/src/main/resources/asterix-rainbow.properties
deleted file mode 100644
index d5febe4..0000000
--- a/asterix-app/src/main/resources/asterix-rainbow.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-rainbow-01.stores=/data/onose/rainbow-01/
-rainbow-02.stores=/data/onose/rainbow-02/
-rainbow-03.stores=/data/onose/rainbow-03/
-rainbow-04.stores=/data/onose/rainbow-04/
-rainbow-05.stores=/data/onose/rainbow-05/
\ No newline at end of file
diff --git a/asterix-app/src/main/resources/asterix.properties b/asterix-app/src/main/resources/asterix.properties
deleted file mode 100755
index 78cd2b9..0000000
--- a/asterix-app/src/main/resources/asterix.properties
+++ /dev/null
@@ -1,10 +0,0 @@
-asterix-001.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-002.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-003.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-004.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-005.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-006.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-007.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-008.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-009.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-010.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
diff --git a/asterix-app/src/main/resources/hyracks-deployment.properties b/asterix-app/src/main/resources/hyracks-deployment.properties
index a8a943e..a333d38 100644
--- a/asterix-app/src/main/resources/hyracks-deployment.properties
+++ b/asterix-app/src/main/resources/hyracks-deployment.properties
@@ -1,2 +1,4 @@
 cc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.CCBootstrapImpl
-nc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.NCBootstrapImpl
\ No newline at end of file
+nc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.NCBootstrapImpl
+cc.ip=127.0.0.1
+cc.port=1098
diff --git a/asterix-app/src/main/resources/hyracks-initdb-deployment.properties b/asterix-app/src/main/resources/hyracks-initdb-deployment.properties
deleted file mode 100644
index e40db59..0000000
--- a/asterix-app/src/main/resources/hyracks-initdb-deployment.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-cc.bootstrap.class=edu.uci.ics.initdb.hyracks.bootstrap.CCBootstrapImpl
-nc.bootstrap.class=edu.uci.ics.initdb.hyracks.bootstrap.NCBootstrapImpl
\ No newline at end of file
diff --git a/asterix-app/src/main/resources/idefix-4nc.properties b/asterix-app/src/main/resources/idefix-4nc.properties
deleted file mode 100755
index 747eb41..0000000
--- a/asterix-app/src/main/resources/idefix-4nc.properties
+++ /dev/null
@@ -1,4 +0,0 @@
-nc1.stores=/home/nicnic/Work/Asterix/tests/tpch/nc1data
-nc2.stores=/home/nicnic/Work/Asterix/tests/tpch/nc2data
-nc3.stores=/home/nicnic/Work/Asterix/tests/tpch/nc3data
-nc4.stores=/home/nicnic/Work/Asterix/tests/tpch/nc4data
diff --git a/asterix-app/src/main/resources/test.properties b/asterix-app/src/main/resources/test.properties
index 01a593b..4947dbf 100755
--- a/asterix-app/src/main/resources/test.properties
+++ b/asterix-app/src/main/resources/test.properties
@@ -1,5 +1,5 @@
 MetadataNode=nc1
 NewUniverse=true
-nc1.stores=/tmp/nc1data/
-nc2.stores=/tmp/nc2data/
+nc1.stores=nc1data
+nc2.stores=nc2data
 OutputDir=/tmp/asterix_output/
diff --git a/asterix-app/src/main/resources/testnc1.properties b/asterix-app/src/main/resources/testnc1.properties
deleted file mode 100755
index c0ad3de..0000000
--- a/asterix-app/src/main/resources/testnc1.properties
+++ /dev/null
@@ -1 +0,0 @@
-nc1.stores=nc1data
diff --git a/asterix-app/src/main/resources/webui/querytemplate.html b/asterix-app/src/main/resources/webui/querytemplate.html
new file mode 100644
index 0000000..95323bb
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/querytemplate.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta name="description" content="ASTERIX WEB PAGE" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<link href='http://fonts.googleapis.com/css?family=Bitter|PT+Sans+Caption|Open+Sans' rel='stylesheet' type='text/css'>
+<script src="/webui/static/js/jquery.min.js"></script>
+
+<link href="/webui/static/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
+<link href="/webui/static/css/bootstrap-responsive.min.css" rel="stylesheet" type="text/css" />
+
+<script src="/webui/static/js/bootstrap.min.js"></script>
+
+<link href="/webui/static/css/style.css" rel="stylesheet" type="text/css" />
+
+<script type="text/javascript">
+$(document).ready(function(){
+   $("form#queryform").submit(function() {
+     $('#output-message').html("");
+     $.post("/", $("form#queryform").serialize(), function(data) {
+       $('#output-message').html(data);
+     });
+     return false;
+   });
+});
+</script>
+
+<meta charset=utf-8 />
+<title>ASTERIX Demo</title>
+</head>
+
+<body>
+  <div class="navbar navbar-inverse navbar-fixed-top">
+    <div class="navbar-inner">
+      <div class="container">
+        <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
+          <span class="icon-bar"></span>
+          <span class="icon-bar"></span>
+          <span class="icon-bar"></span>
+        </a>
+        <a class="brand" href="#">ASTERIX</a>
+        <div class="nav-collapse collapse">
+          <ul class="nav">
+            <li><a href="http://code.google.com/p/asterixdb/source/browse/">Open source</a></li>
+            <li><a href="http://code.google.com/p/asterixdb/issues/list">File issues</a></li>
+            <li><a href="https://groups.google.com/forum/?fromgroups#!forum/asterixdb-userst">Contact</a></li>
+          </ul>
+        </div><!--/.nav-collapse -->
+      </div>
+    </div>
+  </div>
+
+  <div class="content">
+    <div class="container">
+      <div class="row-fluid">
+        <div class="span6">
+          <form id="queryform" class="form-horizontal" method="post">
+            <div>
+              <label class="query">Query</label>
+              <textarea rows="10" name="query" class="query" value="%s" placeholder="Type your AQL query ..."></textarea>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-expr-tree" value="true" /> Print parsed expressions</label>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-rewritten-expr-tree" value="true" /> Print rewritten expressions</label>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-logical-plan" value="true" /> Print logical plan</label>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-optimized-logical-plan" value="true" /> Print optimized logical plan</label>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-job" value="true" /> Print hyracks job</label>
+            </div>
+            <button type="submit" class="btn btn-danger">Execute</button>
+          </form>
+        </div>
+
+        <div class="span6">
+         <div class="output">
+           <label class="heading">Output</label>
+           <div id="output-message" class="message">
+           </div>
+         </div>
+       </div>
+      </div>
+    </div>
+  </div>
+  <div class="footer">
+    <section class="line"><hr></section>
+    <section class="content">
+      <section class="left">
+        Developed by ASTERIX group
+      </section>
+      <section class="right">
+        &copy; Copyright 2013 University of California, Irvine
+      </section>
+    </section>
+  </div>
+</body>
+</html>
+
diff --git a/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css b/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css
new file mode 100644
index 0000000..d1b7f4b
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css
@@ -0,0 +1,9 @@
+/*!
+ * Bootstrap Responsive v2.3.1
+ *
+ * Copyright 2012 Twitter, Inc
+ * Licensed under the Apache License v2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Designed and built with all the love in the world @twitter by @mdo and @fat.
+ */.clearfix{*zoom:1}.clearfix:before,.clearfix:after{display:table;line-height:0;content:""}.clearfix:after{clear:both}.hide-text{font:0/0 a;color:transparent;text-shadow:none;background-color:transparent;border:0}.input-block-level{display:block;width:100%;min-height:30px;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}@-ms-viewport{width:device-width}.hidden{display:none;visibility:hidden}.visible-phone{display:none!important}.visible-tablet{display:none!important}.hidden-desktop{display:none!important}.visible-desktop{display:inherit!important}@media(min-width:768px) and (max-width:979px){.hidden-desktop{display:inherit!important}.visible-desktop{display:none!important}.visible-tablet{display:inherit!important}.hidden-tablet{display:none!important}}@media(max-width:767px){.hidden-desktop{display:inherit!important}.visible-desktop{display:none!important}.visible-phone{display:inherit!important}.hidden-phone{display:none!important}}.visible-print{display:none!important}@media print{.visible-print{display:inherit!important}.hidden-print{display:none!important}}@media(min-width:1200px){.row{margin-left:-30px;*zoom:1}.row:before,.row:after{display:table;line-height:0;content:""}.row:after{clear:both}[class*="span"]{float:left;min-height:1px;margin-left:30px}.container,.navbar-static-top .container,.navbar-fixed-top .container,.navbar-fixed-bottom 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[class*="span"]:first-child{margin-left:0}.row-fluid .controls-row [class*="span"]+[class*="span"]{margin-left:2.564102564102564%}.row-fluid .span12{width:100%;*width:99.94680851063829%}.row-fluid .span11{width:91.45299145299145%;*width:91.39979996362975%}.row-fluid .span10{width:82.90598290598291%;*width:82.8527914166212%}.row-fluid .span9{width:74.35897435897436%;*width:74.30578286961266%}.row-fluid .span8{width:65.81196581196582%;*width:65.75877432260411%}.row-fluid .span7{width:57.26495726495726%;*width:57.21176577559556%}.row-fluid .span6{width:48.717948717948715%;*width:48.664757228587014%}.row-fluid .span5{width:40.17094017094017%;*width:40.11774868157847%}.row-fluid .span4{width:31.623931623931625%;*width:31.570740134569924%}.row-fluid .span3{width:23.076923076923077%;*width:23.023731587561375%}.row-fluid .span2{width:14.52991452991453%;*width:14.476723040552828%}.row-fluid .span1{width:5.982905982905983%;*width:5.929714493544281%}.row-fluid 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[class*="span"]+[class*="span"]{margin-left:30px}input.span12,textarea.span12,.uneditable-input.span12{width:1156px}input.span11,textarea.span11,.uneditable-input.span11{width:1056px}input.span10,textarea.span10,.uneditable-input.span10{width:956px}input.span9,textarea.span9,.uneditable-input.span9{width:856px}input.span8,textarea.span8,.uneditable-input.span8{width:756px}input.span7,textarea.span7,.uneditable-input.span7{width:656px}input.span6,textarea.span6,.uneditable-input.span6{width:556px}input.span5,textarea.span5,.uneditable-input.span5{width:456px}input.span4,textarea.span4,.uneditable-input.span4{width:356px}input.span3,textarea.span3,.uneditable-input.span3{width:256px}input.span2,textarea.span2,.uneditable-input.span2{width:156px}input.span1,textarea.span1,.uneditable-input.span1{width:56px}.thumbnails{margin-left:-30px}.thumbnails>li{margin-left:30px}.row-fluid .thumbnails{margin-left:0}}@media(min-width:768px) and (max-width:979px){.row{margin-left:-20px;*zoom:1}.row:before,.row:after{display:table;line-height:0;content:""}.row:after{clear:both}[class*="span"]{float:left;min-height:1px;margin-left:20px}.container,.navbar-static-top .container,.navbar-fixed-top .container,.navbar-fixed-bottom 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diff --git a/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css b/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css
new file mode 100644
index 0000000..c10c7f4
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css
@@ -0,0 +1,9 @@
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.label,.btn .badge{position:relative;top:-1px}.btn-mini .label,.btn-mini .badge{top:0}@-webkit-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-moz-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-ms-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-o-keyframes progress-bar-stripes{from{background-position:0 0}to{background-position:40px 0}}@keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}.progress{height:20px;margin-bottom:20px;overflow:hidden;background-color:#f7f7f7;background-image:-moz-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:-webkit-gradient(linear,0 0,0 100%,from(#f5f5f5),to(#f9f9f9));background-image:-webkit-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:-o-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:linear-gradient(to 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0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);-webkit-background-size:40px 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0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.progress-info .bar,.progress 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50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.progress-warning .bar,.progress .bar-warning{background-color:#faa732;background-image:-moz-linear-gradient(top,#fbb450,#f89406);background-image:-webkit-gradient(linear,0 0,0 100%,from(#fbb450),to(#f89406));background-image:-webkit-linear-gradient(top,#fbb450,#f89406);background-image:-o-linear-gradient(top,#fbb450,#f89406);background-image:linear-gradient(to bottom,#fbb450,#f89406);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffbb450',endColorstr='#fff89406',GradientType=0)}.progress-warning.progress-striped .bar,.progress-striped .bar-warning{background-color:#fbb450;background-image:-webkit-gradient(linear,0 100%,100% 0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.accordion{margin-bottom:20px}.accordion-group{margin-bottom:2px;border:1px solid #e5e5e5;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px}.accordion-heading{border-bottom:0}.accordion-heading .accordion-toggle{display:block;padding:8px 15px}.accordion-toggle{cursor:pointer}.accordion-inner{padding:9px 15px;border-top:1px solid #e5e5e5}.carousel{position:relative;margin-bottom:20px;line-height:1}.carousel-inner{position:relative;width:100%;overflow:hidden}.carousel-inner>.item{position:relative;display:none;-webkit-transition:.6s ease-in-out left;-moz-transition:.6s ease-in-out left;-o-transition:.6s ease-in-out left;transition:.6s ease-in-out left}.carousel-inner>.item>img,.carousel-inner>.item>a>img{display:block;line-height:1}.carousel-inner>.active,.carousel-inner>.next,.carousel-inner>.prev{display:block}.carousel-inner>.active{left:0}.carousel-inner>.next,.carousel-inner>.prev{position:absolute;top:0;width:100%}.carousel-inner>.next{left:100%}.carousel-inner>.prev{left:-100%}.carousel-inner>.next.left,.carousel-inner>.prev.right{left:0}.carousel-inner>.active.left{left:-100%}.carousel-inner>.active.right{left:100%}.carousel-control{position:absolute;top:40%;left:15px;width:40px;height:40px;margin-top:-20px;font-size:60px;font-weight:100;line-height:30px;color:#fff;text-align:center;background:#222;border:3px solid #fff;-webkit-border-radius:23px;-moz-border-radius:23px;border-radius:23px;opacity:.5;filter:alpha(opacity=50)}.carousel-control.right{right:15px;left:auto}.carousel-control:hover,.carousel-control:focus{color:#fff;text-decoration:none;opacity:.9;filter:alpha(opacity=90)}.carousel-indicators{position:absolute;top:15px;right:15px;z-index:5;margin:0;list-style:none}.carousel-indicators li{display:block;float:left;width:10px;height:10px;margin-left:5px;text-indent:-999px;background-color:#ccc;background-color:rgba(255,255,255,0.25);border-radius:5px}.carousel-indicators .active{background-color:#fff}.carousel-caption{position:absolute;right:0;bottom:0;left:0;padding:15px;background:#333;background:rgba(0,0,0,0.75)}.carousel-caption h4,.carousel-caption p{line-height:20px;color:#fff}.carousel-caption h4{margin:0 0 5px}.carousel-caption p{margin-bottom:0}.hero-unit{padding:60px;margin-bottom:30px;font-size:18px;font-weight:200;line-height:30px;color:inherit;background-color:#eee;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px}.hero-unit h1{margin-bottom:0;font-size:60px;line-height:1;letter-spacing:-1px;color:inherit}.hero-unit li{line-height:30px}.pull-right{float:right}.pull-left{float:left}.hide{display:none}.show{display:block}.invisible{visibility:hidden}.affix{position:fixed}
diff --git a/asterix-app/src/main/resources/webui/static/css/style.css b/asterix-app/src/main/resources/webui/static/css/style.css
new file mode 100644
index 0000000..b8688db
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/style.css
@@ -0,0 +1,139 @@
+body {
+    background: none repeat scroll 0 0 white;
+    color: #222222;
+    font-family: 'Bitter';
+    font-size: 14px;
+    line-height: 17px;
+    width: 100%;
+}
+
+.content {
+    margin-top: 70px;
+}
+
+label.query, label.result {
+    font-size: 24px;
+    padding-bottom: 10px;
+    font-weight: bold;
+}
+
+div.host {
+    float: left;
+    margin: 0 100px 0 10px;
+}
+
+div.port {
+}
+
+div.left {
+    float: left;
+    width: 320px;
+    padding: 0 20px 0 10px;
+}
+
+div.right {
+}
+
+button.btn {
+    clear: both;
+    float: left;
+    margin: 20px 0 0 10px;;
+}
+
+textarea.query {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    font-size: 16px;
+    line-height: 20px;
+    font-family: bitter, helvetica;
+    width: 100%;
+    padding: 10px;
+    color: #333;
+    resize: none;
+    border: 10px solid #eee;
+}
+
+label {
+    padding-top: 10px;
+}
+
+input[type=text] {
+    height: 20px;
+}
+
+pre {
+    overflow: auto;
+    white-space: pre;
+}
+
+div.output label.heading {
+    font-size: 24px;
+    margin-top: 2px;
+    padding-bottom: 10px;
+    font-weight: bold;
+}
+
+div.output .message {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    color: #000;
+    resize: none;
+}
+
+div.output .message pre.error {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    border-color: rgba(82, 168, 236, 0.8);
+    outline: 0;
+    outline: thin dotted 9;
+
+    -webkit-box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 0.8);
+    -moz-box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 1.0);
+    box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 1.0);
+    color: #000;
+    resize: none;
+    border: 1px solid #eee;
+    margin-top: 7px;
+    padding: 20px 20px 20px 20px;
+}
+
+.footer {
+   margin-top: 40px;
+}
+
+.footer .line {
+    border-top: 1px solid #EEEEEE;
+    bottom: 20px;
+    height: 10px;
+    left: 0;
+    position: fixed;
+    width: 100%;
+}
+
+.footer .content {
+    background: none repeat scroll 0 0 #FFFFFF;
+    bottom: 0;
+    color: #666666;
+    font-size: 12px;
+    height: 25px;
+    left: 0;
+    padding-top: 5px;
+    position: fixed;
+    width: 100%;
+}
+
+.footer .content .left {
+    padding-left: 20px;
+    float: left;
+}
+
+.footer .content .right {
+    padding-right: 20px;
+    float: right;
+}
diff --git a/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png
new file mode 100644
index 0000000..3bf6484
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png
Binary files differ
diff --git a/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png
new file mode 100644
index 0000000..a996999
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png
Binary files differ
diff --git a/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js b/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js
new file mode 100644
index 0000000..95c5ac5
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js
@@ -0,0 +1,6 @@
+/*!
+* Bootstrap.js by @fat & @mdo
+* Copyright 2012 Twitter, Inc.
+* http://www.apache.org/licenses/LICENSE-2.0.txt
+*/
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diff --git a/asterix-app/src/main/resources/webui/static/js/jquery.min.js b/asterix-app/src/main/resources/webui/static/js/jquery.min.js
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