| /* |
| * 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.giraph.utils; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.mapreduce.JobContext; |
| import org.apache.hadoop.mapreduce.OutputCommitter; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| |
| /** |
| * Output committer which has abstract commit method |
| */ |
| public abstract class DefaultOutputCommitter extends OutputCommitter { |
| /** |
| * For cleaning up the job's output after job completion. Note that this |
| * is invoked for jobs with final run state as |
| * {@link org.apache.hadoop.mapreduce.JobStatus.State#SUCCEEDED} |
| * |
| * @param jobContext Context of the job whose output is being written. |
| */ |
| public abstract void commit(JobContext jobContext) throws IOException; |
| |
| @Override |
| public final void setupJob(JobContext jobContext) throws IOException { |
| } |
| |
| @Override |
| public final void setupTask(TaskAttemptContext taskContext) |
| throws IOException { |
| } |
| |
| @Override |
| public final void commitJob(JobContext jobContext) |
| throws IOException { |
| super.commitJob(jobContext); |
| commit(jobContext); |
| } |
| |
| @Override |
| public final boolean needsTaskCommit(TaskAttemptContext taskContext) |
| throws IOException { |
| // Digraph does not require a task commit and there is a bug in Corona |
| // which triggers t5688706 |
| // Avoiding the task commit should work around this. |
| return false; |
| } |
| |
| @Override |
| public final void commitTask(TaskAttemptContext context) throws IOException { |
| } |
| |
| @Override |
| public final void abortTask(TaskAttemptContext taskContext) |
| throws IOException { |
| } |
| } |