Implement a result serializer, its factories and providers for test to serialize the results based on record descriptor instead of printer factory in test framework.
git-svn-id: https://hyracks.googlecode.com/svn/branches/fullstack_hyracks_result_distribution@3058 123451ca-8445-de46-9d55-352943316053
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java
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+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java
@@ -0,0 +1,76 @@
+/*
+ * 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.hyracks.tests.util;
+
+import java.io.DataInputStream;
+import java.io.PrintStream;
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataflow.value.IResultSerializer;
+import edu.uci.ics.hyracks.api.dataflow.value.IResultSerializerFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+
+public class ResultSerializerFactoryProvider implements Serializable {
+ private static final long serialVersionUID = 1L;
+
+ public static final ResultSerializerFactoryProvider INSTANCE = new ResultSerializerFactoryProvider();
+
+ private ResultSerializerFactoryProvider() {
+ }
+
+ public IResultSerializerFactory getResultSerializerFactoryProvider() {
+ return new IResultSerializerFactory() {
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public IResultSerializer createResultSerializer(final RecordDescriptor recordDesc,
+ final PrintStream printStream) {
+ return new IResultSerializer() {
+ private static final long serialVersionUID = 1L;
+
+ ByteBufferInputStream bbis = new ByteBufferInputStream();
+ DataInputStream di = new DataInputStream(bbis);
+
+ @Override
+ public void init() throws HyracksDataException {
+
+ }
+
+ @Override
+ public boolean appendTuple(IFrameTupleAccessor tAccess, int tIdx) throws HyracksDataException {
+ int start = tAccess.getTupleStartOffset(tIdx) + tAccess.getFieldSlotsLength();
+
+ bbis.setByteBuffer(tAccess.getBuffer(), start);
+
+ Object[] record = new Object[recordDesc.getFieldCount()];
+ for (int i = 0; i < record.length; ++i) {
+ Object instance = recordDesc.getFields()[i].deserialize(di);
+ if (i == 0) {
+ printStream.print(String.valueOf(instance));
+ } else {
+ printStream.print(", " + String.valueOf(instance));
+ }
+ }
+ printStream.println();
+ return true;
+ }
+ };
+ }
+ };
+ }
+}