Assignment4_P4_MemoryConscious.MovieRatingMemConsciousDriver.java Source code

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Here is the source code for Assignment4_P4_MemoryConscious.MovieRatingMemConsciousDriver.java

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package Assignment4_P4_MemoryConscious;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.SortedMapWritable;
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 java.io.IOException;

/**
 *
 * @author Chintan
 */
public class MovieRatingMemConsciousDriver {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException, InterruptedException, ClassNotFoundException {
        Configuration conf = new Configuration();
        Job job = Job.getInstance(conf, "Movie Rating Mem Conscious Standard Deviation");
        job.setJarByClass(MovieRatingMemConsciousDriver.class);

        job.setMapperClass(MovieRatingMemConscious_Mapper.class);
        job.setCombinerClass(MovingRatingMemConscious_Combiner.class);
        job.setMapOutputKeyClass(IntWritable.class);
        job.setMapOutputValueClass(SortedMapWritable.class);

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

        FileInputFormat.addInputPath(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));
        System.exit(job.waitForCompletion(true) ? 0 : 1);
    }
}