cat.lump.ir.lucene.index

Class LuceneIndexer

java.lang.Object

cat.lump.ir.lucene.LuceneInterface

cat.lump.ir.lucene.index.LuceneIndexer

public class LuceneIndexer
extends LuceneInterface

An indexer based on Lucene in Action 2nd edition. A few adaptations were necessary to make it work with Lucene 3.5.0.
Note that in order to add a new document to an already existing index it is only necessary to run the code again considering the same path to the already existing index.
Special attention has to be paid respect to the rest of libraries because it seems like JWPL's Lucene modules included (which are older) are sometimes considered.

Author:

albarron

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LuceneIndexer.TextFilesFilter

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	verbose Directory where the Lucene index has to be stored

Fields inherited from class cat.lump.ir.lucene.LuceneInterface

indexDir, lan, logger, PROCESS_START

Constructor Summary

Constructors

Constructor and Description
LuceneIndexer(java.util.Locale language, java.lang.String dataDir, java.lang.String indexDir)
LuceneIndexer(java.lang.String dataDir, java.lang.String indexDir) Default invocation for English

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes the Lucene index
protected Document	getDocument(java.io.File f)
void	index()
void	index(java.lang.String dataDir, java.io.FileFilter filter) Open an index and start file directory traversal
static void	main(java.lang.String[] args)
void	setAnalyzer()
void	setDataDir(java.lang.String data)

Methods inherited from class cat.lump.ir.lucene.LuceneInterface

setIndexDir, setLanguage, setLanguage, setVerbose

Methods inherited from class java.lang.Object

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

Field Detail

verbose

protected boolean verbose

Directory where the Lucene index has to be stored

Constructor Detail

LuceneIndexer

public LuceneIndexer(java.lang.String dataDir,
             java.lang.String indexDir)

Default invocation for English

LuceneIndexer

public LuceneIndexer(java.util.Locale language,
             java.lang.String dataDir,
             java.lang.String indexDir)

Method Detail

index

public void index()
           throws java.io.IOException

Throws:

java.io.IOException

index

public void index(java.lang.String dataDir,
         java.io.FileFilter filter)
           throws java.io.IOException

Open an index and start file directory traversal

Parameters:

dataDir -

filter -

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Closes the Lucene index

Throws:

java.io.IOException

setAnalyzer

public void setAnalyzer()

Parameters:

language -

indexDir -

setDataDir

public void setDataDir(java.lang.String data)

getDocument

protected Document getDocument(java.io.File f)
                        throws java.io.IOException

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Throws:

java.io.IOException