/**
 * 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.hive.hcatalog.mapreduce;

import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableComparable;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.OutputFormat;
import org.apache.hadoop.mapreduce.OutputCommitter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;

import java.io.IOException;

/**
 * Thin extention to return an {@link OutputCommitter} that carries out crunch
 * specific logic
 */
class CrunchFileOutputFormatContainer extends FileOutputFormatContainer {

  /**
   * @param of
   *          base OutputFormat to contain
   */
  public CrunchFileOutputFormatContainer(OutputFormat<? super WritableComparable<?>, ? super Writable> of) {
    super(of);
  }

  @Override
  public OutputCommitter getOutputCommitter(TaskAttemptContext context) throws IOException, InterruptedException {
    // this needs to be manually set, under normal circumstances MR Task does
    // this
    setWorkOutputPath(context);
    return new CrunchFileOutputCommitterContainer(context,
        HCatBaseOutputFormat.getJobInfo(context.getConfiguration()).isDynamicPartitioningUsed() ? null
            : new JobConf(context.getConfiguration()).getOutputCommitter());
  }
}
