com.hortonworks.mapreduce.URLCount.java Source code

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Here is the source code for com.hortonworks.mapreduce.URLCount.java

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/*
 * Copyright 2016 aervits.
 *
 * 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 com.hortonworks.mapreduce;

/**
 *
 * @author aervits
 */
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
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.input.KeyValueTextInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

public class URLCount extends Configured implements Tool {

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

        int res = ToolRunner.run(new Configuration(), new URLCount(), args);
        System.exit(res);

    }

    @Override
    public int run(String[] args) throws Exception {
        Configuration conf = this.getConf();
        conf.set("mapreduce.input.keyvaluelinerecordreader.key.value.separator", " ");
        Job job = Job.getInstance(conf, "URLCount");
        job.setJarByClass(getClass());
        job.setInputFormatClass(KeyValueTextInputFormat.class);
        job.setOutputFormatClass(TextOutputFormat.class);
        job.setMapperClass(URLCountM.class);
        job.setReducerClass(URLCountR.class);
        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(IntWritable.class);
        job.setOutputKeyClass(IntWritable.class);
        job.setOutputValueClass(Text.class);
        FileInputFormat.addInputPath(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));
        return (job.waitForCompletion(true) == true ? 0 : -1);
    }

}