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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.search;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.LowerCaseFilter;
import org.apache.lucene.analysis.core.WhitespaceTokenizer;
import org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter;
/**
* @author Narcis Marcu ([email protected])
*/
public class LuceneSimpleAnalyzer extends Analyzer {
private boolean isCaseSensitive;
private boolean removeAccents;
public LuceneSimpleAnalyzer(boolean isCaseSensitive, boolean removeAccents) {
this.isCaseSensitive = isCaseSensitive;
// this.removeAccents = removeAccents;
this.removeAccents = true;
}
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer source = new WhitespaceTokenizer();
TokenStream result = source;
if (!isCaseSensitive) {
// lowercase tokens
result = new LowerCaseFilter(source);
}
if (removeAccents) {
// normalize characters
result = new ASCIIFoldingFilter(result);
}
// exclude words with length < 3
// result = new LengthFilter(result, 3, Integer.MAX_VALUE);
return new TokenStreamComponents(source, result);
}
}