Untitled

import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.Job;

public class WordDirver {
    public static void main(String[] args) throws Exception {
       if (args.length != 2) {
          System.out.printf("Usage: WordCount <input dir> <output dir>\n");
          System.exit(-1);
		}
		Job job = new Job();

		job.setJarByClass(WordDirver.class);
		job.setJobName("Word Count");

		FileInputFormat.setInputPaths(job, new Path(args[0]));
		FileOutputFormat.setOutputPath(job, new Path(args[1]));

		job.setMapperClass(WordMapper.class);
		job.setReducerClass(SumReducer.class);

job.setMapOutputKeyClass(Text.class);
		job.setMapOutputValueClass(IntWritable.class);

job.setOutputKeyClass(Text.class);
		job.setOutputValueClass(IntWritable.class);

				
		boolean success = job.waitForCompletion(true);
		System.exit(success ? 0 : 1);
		
	} 
}