de.digitalcollections.solrocr.formats.alto

Class AltoCharFilterFactory

java.lang.Object

org.apache.lucene.analysis.util.AbstractAnalysisFactory

org.apache.lucene.analysis.util.CharFilterFactory

de.digitalcollections.solrocr.formats.alto.AltoCharFilterFactory

public class AltoCharFilterFactory
extends org.apache.lucene.analysis.util.CharFilterFactory

CharFilter to convert ALTO to plaintext while keeping track of the token offsets. This filter will:

• Strip out the <Description>...</Description> element
• Extract the OCRed text out of the CONTENT attribute into a text node so it's not removed by the HTMLStripCharFilter
• Strip out all XML-Tags, leaving only text nodes

Field Summary

Fields inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

Constructor Summary

Constructors

Constructor and Description
AltoCharFilterFactory(Map<String,String> args)

Method Summary

Modifier and Type	Method and Description
Reader	create(Reader input)

Methods inherited from class org.apache.lucene.analysis.util.CharFilterFactory

availableCharFilters, forName, lookupClass, normalize, reloadCharFilters

Methods inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

get, get, get, get, get, getBoolean, getChar, getClassArg, getFloat, getInt, getLines, getLuceneMatchVersion, getOriginalArgs, getPattern, getSet, getSnowballWordSet, getWordSet, isExplicitLuceneMatchVersion, require, require, require, requireBoolean, requireChar, requireFloat, requireInt, setExplicitLuceneMatchVersion, splitAt, splitFileNames

Methods inherited from class java.lang.Object

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

Constructor Detail

AltoCharFilterFactory

public AltoCharFilterFactory(Map<String,String> args)

Method Detail

create

public Reader create(Reader input)

Specified by:

create in class org.apache.lucene.analysis.util.CharFilterFactory