com.mycompany.maprpractice.runnerClass.WordCount.java Source code

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Here is the source code for com.mycompany.maprpractice.runnerClass.WordCount.java

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/*
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package com.mycompany.maprpractice.runnerClass;

/**
 *
 * @author QAI
 */
import com.mycompany.maprpractice.Mapper.WordCountMapper;
import com.mycompany.maprpractice.Reducer.WordCountReducer;
import java.io.IOException;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

public class WordCount extends Configured implements Tool {

    public static void main(String[] args) throws Exception {
        int exitCode = ToolRunner.run(new WordCount(), args);
        System.exit(exitCode);
    }

    public int run(String[] args) throws Exception {
        if (args.length != 2) {
            System.err.printf("Usage: %s [generic options] <input> <output>\n", getClass().getSimpleName());
            ToolRunner.printGenericCommandUsage(System.err);
            return -1;
        }

        Job job = new org.apache.hadoop.mapreduce.Job();
        job.setJarByClass(WordCount.class);
        job.setJobName("WordCounter");

        String inputPath = "C:\\Users\\priyamdixit\\Desktop\\TestData\\wordCount.txt";
        String outputPath = "C:\\Users\\priyamdixit\\Desktop\\TestData";

        FileInputFormat.addInputPath(job, new Path(inputPath));
        FileOutputFormat.setOutputPath(job, new Path(outputPath));

        //      FileInputFormat.addInputPath(job, new Path(args[0]));
        //      FileOutputFormat.setOutputPath(job, new Path(args[1]));
        //   
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(IntWritable.class);
        job.setOutputFormatClass(TextOutputFormat.class);
        job.setMapperClass(WordCountMapper.class);
        job.setReducerClass(WordCountReducer.class);

        int returnValue = job.waitForCompletion(true) ? 0 : 1;
        System.out.println("job.isSuccessful " + job.isSuccessful());
        return returnValue;
    }
}