edu.umd.cloud9.collection.trec
Class NumberTrecDocuments

java.lang.Object
  org.apache.hadoop.conf.Configured
      edu.umd.cloud9.collection.trec.NumberTrecDocuments

All Implemented Interfaces:

Configurable, Tool

public class NumberTrecDocuments
extends Configured
implements Tool

Program that builds the mapping from TREC docids (String identifiers) to docnos (sequentially-numbered ints). The program takes four command-line arguments:

• [input] path to the document collection
• [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.trec.NumberTrecDocuments \
 /umd/collections/trec/trec4-5_noCRFR.xml \
 /user/jimmylin/trec-docid-tmp \
 /user/jimmylin/docno.mapping 100
 

Author:

Jimmy Lin

Constructor Summary

NumberTrecDocuments()
Creates an instance of this tool.

Method Summary

static void	main(String[] args) Dispatches command-line arguments to the tool via the ToolRunner.
int	run(String[] args) Runs this tool.

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

NumberTrecDocuments

public NumberTrecDocuments()

Creates an instance of this tool.

Method Detail

run

public int run(String[] args)
        throws Exception

Runs this tool.

Specified by:

run in interface Tool

Throws:

Exception

main

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

Dispatches command-line arguments to the tool via the ToolRunner.

Throws:

Exception