cosmos.mapred.MediawikiIngestJob.java Source code

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Here is the source code for cosmos.mapred.MediawikiIngestJob.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to you 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.
 *
 *  Copyright 2013 Josh Elser
 *
 */
package cosmos.mapred;

import org.apache.accumulo.core.client.BatchWriterConfig;
import org.apache.accumulo.core.client.mapreduce.AccumuloOutputFormat;
import org.apache.accumulo.core.client.security.tokens.PasswordToken;
import org.apache.accumulo.core.data.Mutation;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

/**
 * 
 */
public class MediawikiIngestJob extends Configured implements Tool {

    @Override
    public int run(String[] args) throws Exception {
        if (1 != args.length) {
            System.err.println("Usage: input.xml,input.xml,input.xml...");
            return 1;
        }

        String inputFiles = args[0];

        Configuration conf = getConf();
        System.out.println("path " + conf.get("fs.default.name"));
        conf.addResource(new Path("/opt/hadoop/conf/hdfs-site.xml"));
        conf.addResource(new Path("/opt/hadoop/conf/core-site.xml"));

        conf.addResource(new Path("/opt/hadoop/conf/mapred-site.xml"));

        System.out.println("path " + conf.get("fs.default.name"));
        //System.exit(1);
        Job job = new Job(conf, "Mediawiki Ingest");

        job.setJarByClass(MediawikiIngestJob.class);

        String tablename = "sortswiki";
        String zookeepers = "localhost:2181";
        String instanceName = "accumulo";
        String user = "root";
        PasswordToken passwd = new PasswordToken("secret");

        FileInputFormat.setInputPaths(job, inputFiles);

        job.setMapperClass(MediawikiMapper.class);
        job.setNumReduceTasks(0);
        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(Mutation.class);
        job.setOutputFormatClass(AccumuloOutputFormat.class);

        BatchWriterConfig bwConfig = new BatchWriterConfig();

        job.setInputFormatClass(MediawikiInputFormat.class);
        AccumuloOutputFormat.setZooKeeperInstance(job, instanceName, zookeepers);
        AccumuloOutputFormat.setConnectorInfo(job, user, passwd);
        AccumuloOutputFormat.setBatchWriterOptions(job, bwConfig);
        AccumuloOutputFormat.setCreateTables(job, true);
        AccumuloOutputFormat.setDefaultTableName(job, tablename);

        return job.waitForCompletion(true) ? 0 : 1;
    }

    public static void main(String[] args) throws Exception {
        int res = ToolRunner.run(new Configuration(), new MediawikiIngestJob(), args);
        System.exit(res);
    }

}