/*
    * 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.bsp;
  
  import java.io.IOException;
  
  import org.apache.hadoop.mapreduce.JobContext;
  import org.apache.hadoop.mapreduce.OutputCommitter;
  import org.apache.hadoop.mapreduce.TaskAttemptContext;
  
  /**
   * This output committer doesn't do anything, meant for the case
   * where output isn't desired, or as a base for not using
   * FileOutputCommitter.
   */
  public class ImmutableOutputCommitter extends OutputCommitter {
    @Override
    public void abortTask(TaskAttemptContext context) throws IOException {
    }
  
    @Override
    public void commitTask(TaskAttemptContext context) throws IOException {
    }
  
    @Override
    public boolean needsTaskCommit(TaskAttemptContext context)
      throws IOException {
      return false;
    }
  
    @Override
    public void setupJob(JobContext context) throws IOException {
    }
  
    @Override
    public void setupTask(TaskAttemptContext context) throws IOException {
    }
  
  /*if[HADOOP_NON_SECURE]
    @Override
    public void cleanupJob(JobContext jobContext) throws IOException {
    }
  
  else[HADOOP_NON_SECURE]*/
  /*end[HADOOP_NON_SECURE]*/
    @Override
    public void commitJob(JobContext jobContext) throws IOException {
    }
  }