/* Copyright (C) 2012 Intel Corporation.
* All rights reserved.
*
* Licensed 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.
*
* For more about this software visit:
* http://www.01.org/GraphBuilder
*/
package com.intel.hadoop.graphbuilder.idnormalize.mapreduce;
import java.io.IOException;
import java.util.Iterator;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.MapReduceBase;
import org.apache.hadoop.mapred.OutputCollector;
import org.apache.hadoop.mapred.Reducer;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.lib.MultipleOutputs;
/**
* Reducer function for SortDictMR job
*
*/
public class SortDictReducer extends MapReduceBase implements
Reducer<IntWritable, Text, Text, Text> {
private MultipleOutputs mos;
private boolean hashRawVid;
@Override
public void configure(JobConf job) {
super.configure(job);
this.mos = new MultipleOutputs(job);
this.hashRawVid = job.getBoolean("hashRawVid", true);
}
@Override
public void reduce(IntWritable key, Iterator<Text> iter,
OutputCollector<Text, Text> out, Reporter reporter) throws IOException {
OutputCollector<Text, Text> mout = mos.getCollector(
"vidhashmap" + key.get(), reporter);
while (iter.hasNext()) {
Text line = iter.next();
mout.collect(null, line);
}
}
@Override
public void close() throws IOException {
mos.close();
}
}