/**
* 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.rcfile;
import java.io.IOException;
import java.util.List;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
public class RCFileMapReduceInputFormat<K extends LongWritable, V extends BytesRefArrayWritable>
extends FileInputFormat<LongWritable, BytesRefArrayWritable> {
@Override
public RecordReader<LongWritable, BytesRefArrayWritable> createRecordReader(InputSplit split,
TaskAttemptContext context) throws IOException, InterruptedException {
context.setStatus(split.toString());
return new RCFileMapReduceRecordReader<LongWritable, BytesRefArrayWritable>();
}
@Override
public List<InputSplit> getSplits(JobContext job) throws IOException {
HiveConf.setLongVar(job.getConfiguration(),
HiveConf.ConfVars.MAPREDMINSPLITSIZE, SequenceFile.SYNC_INTERVAL);
return super.getSplits(job);
}
}