mx.iteso.msc.asn.mrwordcount.MyMapper.java Source code

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Here is the source code for mx.iteso.msc.asn.mrwordcount.MyMapper.java

Source

/*
 * Copyright 2017 Mario Contreras <marioc@nazul.net>.
 *
 * 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.
 */
package mx.iteso.msc.asn.mrwordcount;

import java.io.IOException;
import java.util.StringTokenizer;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

/**
 *
 * @author Mario Contreras <marioc@nazul.net>
 */
public class MyMapper extends Mapper<Object, Text, Text, IntWritable> {

    protected void map(Object key, Text value, Context context) throws IOException, InterruptedException {
        Text word = new Text();

        StringTokenizer itr = new StringTokenizer(value.toString());
        while (itr.hasMoreTokens()) {
            word.set(itr.nextToken());
            context.write(word, new IntWritable(1));
        }
    }
}

// EOF