| /* |
| * 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; |
| } |
| }; |
| } |
| }; |
| } |
| } |