/** * 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.streaming; import java.io.IOException; /** * An application that outputs a specified number of lines * without consuming any input. */ public class OutputOnlyApp { public static void main(String[] args) throws IOException { if (args.length < 1) { System.err.println("Usage: OutputOnlyApp NUMRECORDS"); return; } int numRecords = Integer.parseInt(args[0]); while (numRecords-- > 0) { System.out.println("key\tvalue"); } } }