StubDriver.java

import org.apache.hadoop.mapreduce.Job;

public class StubDriver {

  public static void main(String[] args) throws Exception {

    /*
     * Validate that two arguments were passed from the command line.
     */
    if (args.length != 2) {
      System.out.printf("Usage: StubDriver <input dir> <output dir>\n");
      System.exit(-1);
    }

    /*
     * Instantiate a Job object for your job's configuration. 
     */
    Job job = new Job();
    
    /*
     * Specify the jar file that contains your driver, mapper, and reducer.
     * Hadoop will transfer this jar file to nodes in your cluster running 
     * mapper and reducer tasks.
     */
    job.setJarByClass(StubDriver.class);
    
    /*
     * Specify an easily-decipherable name for the job.
     * This job name will appear in reports and logs.
     */
    job.setJobName("Stub Driver");

    /*
     * TODO implement
     */
    
    /*
     * Start the MapReduce job and wait for it to finish.
     * If it finishes successfully, return 0. If not, return 1.
     */
    boolean success = job.waitForCompletion(true);
    System.exit(success ? 0 : 1);
  }
}