com.mapred.EmployeeMap.java Source code

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Here is the source code for com.mapred.EmployeeMap.java

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package com.mapred;

import java.io.IOException;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.MapWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

public class EmployeeMap extends Mapper<LongWritable, Text, DepDatePair, MapWritable> {

    MapWritable outputMap = new MapWritable();
    DepDatePair depKey = new DepDatePair();

    @Override
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        MRUtils.prepareEmployeeMap(value, outputMap);
        if (outputMap == null) {
            System.out.println("EmployeeMap >> bad row with value = " + value.toString());
            return;
        }

        IntWritable department = new IntWritable(Integer.parseInt(outputMap.get(MRUtils.DEPARTMENT_ID).toString()));
        depKey.setDepartment(department);
        depKey.setHireDate(new Text(outputMap.get(MRUtils.WORK_START).toString()));
        context.write(depKey, outputMap);
    }

}