1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.giraph.bsp; 20 21 import java.io.IOException; 22 23 import org.apache.hadoop.mapreduce.JobContext; 24 import org.apache.hadoop.mapreduce.OutputCommitter; 25 import org.apache.hadoop.mapreduce.TaskAttemptContext; 26 27 /** 28 * This output committer doesn't do anything, meant for the case 29 * where output isn't desired, or as a base for not using 30 * FileOutputCommitter. 31 */ 32 public class ImmutableOutputCommitter extends OutputCommitter { 33 @Override 34 public void abortTask(TaskAttemptContext context) throws IOException { 35 } 36 37 @Override 38 public void commitTask(TaskAttemptContext context) throws IOException { 39 } 40 41 @Override 42 public boolean needsTaskCommit(TaskAttemptContext context) 43 throws IOException { 44 return false; 45 } 46 47 @Override 48 public void setupJob(JobContext context) throws IOException { 49 } 50 51 @Override 52 public void setupTask(TaskAttemptContext context) throws IOException { 53 } 54 55 /*if[HADOOP_NON_SECURE] 56 @Override 57 public void cleanupJob(JobContext jobContext) throws IOException { 58 } 59 60 else[HADOOP_NON_SECURE]*/ 61 /*end[HADOOP_NON_SECURE]*/ 62 @Override 63 public void commitJob(JobContext jobContext) throws IOException { 64 } 65 }