Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.j.distributed.sorter; import java.io.IOException; import org.apache.hadoop.io.LongWritable; import org.apache.hadoop.io.Text; import org.apache.hadoop.mapreduce.Mapper; /** * * @author jonatan */ public class SorterMapper extends Mapper<Object, Text, LongWritable, Text> { @Override public void map(Object key, Text value, Context context) throws IOException, InterruptedException { String[] data = value.toString().split("\t"); context.write(new LongWritable(Long.parseLong(data[1])), new Text(data[0])); } }