edu.umd.cloud9.collection.trec

Class CountTrecDocuments

java.lang.Object

org.apache.hadoop.conf.Configured

edu.umd.cloud9.collection.trec.CountTrecDocuments

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public class CountTrecDocuments
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Simple demo program that counts all the documents in the TREC collection. Run without any arguments for help. Sample invocation:

 hadoop jar dist/cloud9-X.X.X.jar edu.umd.cloud9.collection.trec.CountTrecDocuments \
  -libjars lib/guava-X.X.X.jar \
  -collection /shared/collections/trec/trec4-5_noCRFR.xml -output tmp \
  -docnoMapping trec-docno-mapping.dat -countOutput records.txt
 

Author:

Jimmy Lin

Field Summary

Fields

Modifier and Type	Field and Description
static String	COLLECTION_OPTION
static String	COUNT_OPTION
static String	MAPPING_OPTION
static String	OUTPUT_OPTION

Constructor Summary

Constructors

Constructor and Description
CountTrecDocuments() Creates an instance of this tool.

Method Summary

Methods

Modifier and Type	Method and Description
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

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

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

getConf, setConf

Field Detail

COLLECTION_OPTION

public static final String COLLECTION_OPTION

See Also:

Constant Field Values

OUTPUT_OPTION

public static final String OUTPUT_OPTION

See Also:

Constant Field Values

MAPPING_OPTION

public static final String MAPPING_OPTION

See Also:

Constant Field Values

COUNT_OPTION

public static final String COUNT_OPTION

See Also:

Constant Field Values

Constructor Detail

CountTrecDocuments

public CountTrecDocuments()

Creates an instance of this tool.

Method Detail

run

public int run(String[] args)
        throws Exception

Runs this tool.

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

Exception

main

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

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

Throws:

Exception