com.intel.hadoop.graphbuilder.idnormalize.mapreduce.SortDictReducer.java Source code

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Here is the source code for com.intel.hadoop.graphbuilder.idnormalize.mapreduce.SortDictReducer.java

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/* 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();
    }

}