/**
* Copyright 2011 Nube Technologies
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and limitations under the License.
*/
package co.nubetech.hiho.similarity.ngram;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
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.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.log4j.Logger;
public class ScoreJob extends Configured implements Tool {
final static Logger logger = Logger
.getLogger(co.nubetech.hiho.similarity.ngram.ScoreJob.class);
@Override
public int run(String[] arg0) throws Exception {
Configuration conf = getConf();
Job job = new Job(conf);
job.setJobName("Score job");
job.setJarByClass(ScoreJob.class);
Class inputFormatClass = Class
.forName("org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat");
Class outputFormatClass = Class
.forName("org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat");
// org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat
// org.apache.hadoop.mapreduce.lib.output.TextOutputFormat
Class inputKeyClass = Class
.forName("co.nubetech.hiho.similarity.ngram.ValuePair");
Class inputValueClass = Class
.forName("org.apache.hadoop.io.IntWritable");
Class outputKeyClass = Class
.forName("co.nubetech.hiho.similarity.ngram.ValuePair");
Class outputValueClass = Class
.forName("org.apache.hadoop.io.LongWritable");
job.setMapperClass(ScoreMapper.class);
job.setReducerClass(ScoreReducer.class);
job.setInputFormatClass(inputFormatClass);
job.setMapOutputKeyClass(inputKeyClass);
job.setMapOutputValueClass(inputValueClass);
job.setOutputKeyClass(outputKeyClass);
job.setOutputValueClass(outputValueClass);
job.setOutputFormatClass(outputFormatClass);
FileInputFormat.setInputPaths(job, "outputOfNGramJob");
FileOutputFormat.setOutputPath(job, new Path("outputOfScoreJob"));
int ret = 0;
try {
ret = job.waitForCompletion(true) ? 0 : 1;
} catch (Exception e) {
e.printStackTrace();
}
return ret;
}
public static void main(String[] args) throws Exception {
ScoreJob job = new ScoreJob();
int res = ToolRunner.run(new Configuration(), job, args);
System.exit(res);
}
}