/**
* Copyright (c) 2000-2005 Liferay, LLC. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.liferay.portal.util;
import java.io.File;
import java.io.IOException;
import com.dotcms.repackage.org.apache.lucene.analysis.core.SimpleAnalyzer;
import com.dotcms.repackage.org.apache.lucene.index.*;
import com.dotcms.repackage.org.apache.lucene.queryparser.classic.ParseException;
import com.dotcms.repackage.org.apache.lucene.queryparser.classic.QueryParser;
import com.dotcms.repackage.org.apache.lucene.search.BooleanClause;
import com.dotcms.repackage.org.apache.lucene.search.BooleanQuery;
import com.dotcms.repackage.org.apache.lucene.search.IndexSearcher;
import com.dotcms.repackage.org.apache.lucene.search.Query;
import com.dotcms.repackage.org.apache.lucene.search.TermQuery;
import com.dotcms.repackage.org.apache.lucene.store.Directory;
import com.dotcms.repackage.org.apache.lucene.store.FSDirectory;
import com.dotcms.repackage.org.apache.lucene.util.Version;
import com.liferay.util.StringPool;
import com.liferay.util.Validator;
import com.liferay.util.lucene.KeywordsUtil;
/**
* <a href="LuceneUtil.java.html"><b><i>View Source</i></b></a>
*
* @author Brian Wing Shun Chan
* @version $Revision: 1.6 $
*
*/
public class LuceneUtil {
public static void addTerm( BooleanQuery booleanQuery, String field, String text) throws ParseException {
if (Validator.isNotNull(text)) {
if (text.indexOf(StringPool.SPACE) == -1) {
text = KeywordsUtil.toWildcard(text);
}
QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, field, new SimpleAnalyzer(Version.LUCENE_CURRENT));
Query query = parser.parse(text);
booleanQuery.add(query, BooleanClause.Occur.SHOULD);
}
}
public static void addRequiredTerm(
BooleanQuery booleanQuery, String field, String text) {
text = KeywordsUtil.escape(text);
Term term = new Term(field, text);
TermQuery termQuery = new TermQuery(term);
booleanQuery.add(termQuery, BooleanClause.Occur.MUST);
}
public static String getLuceneDir(String companyId) {
return PropsUtil.get(PropsUtil.LUCENE_DIR) + companyId +
StringPool.SLASH;
}
public static IndexReader getReader(String companyId) throws IOException {
return IndexReader.open(FSDirectory.open(new File(getLuceneDir(companyId))));
}
public static IndexSearcher getSearcher ( String companyId ) throws IOException {
Directory directory = FSDirectory.open( new File( getLuceneDir( companyId ) ) );
DirectoryReader ireader = DirectoryReader.open( directory );
return new IndexSearcher( ireader );
}
public static IndexWriter getWriter(String companyId) throws IOException {
return getWriter(companyId, false);
}
public static IndexWriter getWriter ( String companyId, boolean create ) throws IOException {
Directory directory = FSDirectory.open( new File( getLuceneDir( companyId ) ) );
IndexWriterConfig config = new IndexWriterConfig( Version.LUCENE_CURRENT, new SimpleAnalyzer( Version.LUCENE_CURRENT ) );
return new IndexWriter( directory, config );
}
}