/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 at * * 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 org.apache.hadoop.mapred.pipes; import org.apache.hadoop.io.BooleanWritable; import org.apache.hadoop.io.Text; import org.apache.hadoop.io.WritableUtils; /* Stub for TestPipeApplication test. This stub produced test data for main test. Main test checks data */ public class PipeReducerStub extends CommonStub { public static void main(String[] args) { PipeReducerStub client = new PipeReducerStub(); client.binaryProtocolStub(); } public void binaryProtocolStub() { try { initSoket(); //should be 5 //RUN_REDUCE boolean WritableUtils.readVInt(dataInput); WritableUtils.readVInt(dataInput); int intValue = WritableUtils.readVInt(dataInput); System.out.println("getIsJavaRecordWriter:" + intValue); // reduce key WritableUtils.readVInt(dataInput); // value of reduce key BooleanWritable value = new BooleanWritable(); readObject(value, dataInput); System.out.println("reducer key :" + value); // reduce value code: // reduce values while ((intValue = WritableUtils.readVInt(dataInput)) == 7) { Text txt = new Text(); // value readObject(txt, dataInput); System.out.println("reduce value :" + txt); } // done WritableUtils.writeVInt(dataOut, 54); dataOut.flush(); dataOut.close(); } catch (Exception x) { x.printStackTrace(); } finally { closeSoket(); } } }