com.baidu.cloud.bmr.mapreduce.AccessLogAnalyzer.java Source code

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Here is the source code for com.baidu.cloud.bmr.mapreduce.AccessLogAnalyzer.java

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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 BeiJing Baidu Netcom Science Technology Co., Ltd
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 * associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
 * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package com.baidu.cloud.bmr.mapreduce;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
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.output.FileOutputFormat;

/**
 * Analyze HTTP logs and count the request number of each day.
 *
 */
public class AccessLogAnalyzer {

    public static void main(String[] args) {
        Configuration conf = new Configuration();
        if (args.length != 2) {
            System.err.println("Usage: AccessLogAnalyzer <input path> <output path>");
            System.exit(-1);
        }
        String inputPath = args[0];
        String outputPath = args[1];
        try {
            Job job = new Job(conf, "AccessLogAnalyzer");
            job.setJarByClass(AccessLogAnalyzer.class);
            job.setMapperClass(AccessLogAnalyzerMapper.class);
            job.setReducerClass(AccessLogAnalyzerReducer.class);
            job.setOutputKeyClass(Text.class);
            job.setOutputValueClass(IntWritable.class);
            FileInputFormat.setInputPaths(job, inputPath);
            FileOutputFormat.setOutputPath(job, new Path(outputPath));
            System.exit(job.waitForCompletion(true) ? 0 : 1);
        } catch (IOException | ClassNotFoundException | InterruptedException e) {
        }
    }
}