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/**************************************************************************
OmegaT - Computer Assisted Translation (CAT) tool
with fuzzy matching, translation memory, keyword search,
glossaries, and translation leveraging into updated projects.
Copyright (C) 2014 Aaron Madlon-Kay
Home page: http://www.omegat.org/
Support center: http://groups.yahoo.com/group/OmegaT/
This file is part of OmegaT.
OmegaT is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OmegaT 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**************************************************************************/
package org.omegat.tokenizer;
import java.io.StringReader;
import java.util.Collections;
import java.util.Set;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.kr.KoreanAnalyzer;
import org.apache.lucene.analysis.kr.KoreanTokenizer;
/**
* This uses the Korean tokenizer currently under development for inclusion in
* Lucene (but not yet incorporated).
* <p>
* The code quality appears to be poor at the moment (see LUCENE-4956 thread;
* spurious ArrayIndexOutOfBoundsException errors observable in normal usage
* within OmegaT) so {@link Tokenizer#isDefault()} is currently
* <code>false</code>.
*
* @see <a href="http://sourceforge.net/projects/lucenekorean/">SourceForge
* project</a>
* @see <a href="http://cafe.naver.com/korlucene">Korean site</a>
* @see <a href="https://issues.apache.org/jira/browse/LUCENE-4956">Lucene
* issue</a>
*
* @author Aaron Madlon-Kay
*/
@Tokenizer(languages = { "ko" })
public class LuceneKoreanTokenizer extends BaseTokenizer {
@SuppressWarnings("resource")
@Override
protected TokenStream getTokenStream(final String strOrig,
final boolean stemsAllowed, final boolean stopWordsAllowed) {
if (stemsAllowed) {
Set<?> stopWords = stopWordsAllowed ? KoreanAnalyzer.STOP_WORDS_SET
: Collections.emptySet();
return new KoreanAnalyzer(getBehavior(), stopWords).tokenStream("",
new StringReader(strOrig));
} else {
return new KoreanTokenizer(getBehavior(), new StringReader(strOrig));
}
}
}
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