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player_select_test.java
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player_select_test.java
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package playercount;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Mapper.Context;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.fs.Path;
public class player_select_test {
public static void main(String[] args) throws Exception {
/*
* Validate that two arguments were passed from the command line.
*/
Configuration conf = new Configuration();
//String[] otherArgs = {"/home/cloudera/workspace/playercount/player.txt", "/home/cloudera/workspace/playercount/output2"};
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 = Job.getInstance(conf, "player_select_test");
/*
* 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(player_select_test.class);
job.setMapperClass(player_select_mapper.class);
job.setCombinerClass(player_select_reducer.class);
job.setReducerClass(player_select_reducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(playerbean.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
/*
for (int i = 0; i < otherArgs.length - 1; ++i) {
FileInputFormat.addInputPath(job, new Path(otherArgs[i]));
}
FileOutputFormat.setOutputPath(job, new Path(otherArgs[otherArgs.length - 1]));
*/
/*
* Specify an easily-decipherable name for the job.
* This job name will appear in reports and logs.
*/
/*
* TODO implement
*/
/*
* Start the MapReduce job and wait for it to finish.
* If it finishes successfully, return 0. If not, return 1.
*/
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}