content: /*
   * 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.chukwa.extraction.archive;
  
  
  import java.text.SimpleDateFormat;
  import org.apache.hadoop.chukwa.ChukwaArchiveKey;
  import org.apache.hadoop.chukwa.ChunkImpl;
  import org.apache.hadoop.chukwa.extraction.engine.RecordUtil;
  import org.apache.hadoop.mapred.lib.MultipleSequenceFileOutputFormat;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.mapred.JobConf;
  import org.apache.hadoop.mapred.RecordWriter;
  import org.apache.hadoop.util.Progressable;
  import org.apache.log4j.Logger;
  
  public class ChukwaArchiveDataTypeOutputFormat extends
      MultipleSequenceFileOutputFormat<ChukwaArchiveKey, ChunkImpl> {
    
    static final String GROUP_BY_CLUSTER_OPTION_NAME = "archive.groupByClusterName";
    static Logger log = Logger.getLogger(ChukwaArchiveDataTypeOutputFormat.class);
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy_MM_dd");
    boolean useClusterID;
    
    public RecordWriter<ChukwaArchiveKey,ChunkImpl>  getRecordWriter(FileSystem fs,
        JobConf job, String name, Progressable arg3) 
    throws java.io.IOException{
  
      log.info(GROUP_BY_CLUSTER_OPTION_NAME + " is " + job.get(GROUP_BY_CLUSTER_OPTION_NAME));
      useClusterID = "true".equals(job.get(GROUP_BY_CLUSTER_OPTION_NAME));
  
      return super.getRecordWriter(fs, job, name, arg3);
    }
    
    @Override
    protected String generateFileNameForKeyValue(ChukwaArchiveKey key,
        ChunkImpl chunk, String name) {
  
      if (log.isDebugEnabled()) {
        log.debug("ChukwaArchiveOutputFormat.fileName: "
            + sdf.format(key.getTimePartition()));
      }
  
      if(useClusterID) {
        String clusterID = RecordUtil.getClusterName(chunk);
        return clusterID + "/" + chunk.getDataType() + "_" + sdf.format(key.getTimePartition())
        + ".arc";
      } else
        return chunk.getDataType() + "_" + sdf.format(key.getTimePartition())
          + ".arc";
    }
  }
  