edu.umd.cloud9.collection.wikipedia
Class BuildWikipediaDocnoMapping

java.lang.Object
  org.apache.hadoop.conf.Configured
      edu.umd.cloud9.collection.wikipedia.BuildWikipediaDocnoMapping

All Implemented Interfaces:

Configurable, Tool

public class BuildWikipediaDocnoMapping
extends Configured
implements Tool

Tool for building the mapping between Wikipedia internal ids (docids) and sequentially-numbered ints (docnos). The program takes four command-line arguments:

• [input] path to the Wikipedia XML dump file
• [output-dir] path to temporary MapReduce output directory
• [output-file] path to location of mappings file
• [num-mappers] number of mappers to run

Here's a sample invocation:

 hadoop jar cloud9.jar edu.umd.cloud9.collection.wikipedia.BuildWikipediaDocnoMapping \
   -libjars bliki-core-3.0.15.jar,commons-lang-2.5.jar \
   /user/jimmy/Wikipedia/raw/enwiki-20101011-pages-articles.xml tmp \
   /user/jimmy/Wikipedia/docno-en-20101011.dat 100
 

Author:

Jimmy Lin

Constructor Summary

BuildWikipediaDocnoMapping()

Method Summary

static void	main(String[] args)
int	run(String[] args)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

BuildWikipediaDocnoMapping

public BuildWikipediaDocnoMapping()

Method Detail

run

public int run(String[] args)
        throws Exception

Specified by:

run in interface Tool

Throws:

Exception

main

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

Throws:

Exception