1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portal.search.lucene;
16  
17  import com.liferay.portal.kernel.search.Query;
18  import com.liferay.portal.kernel.search.StringQueryImpl;
19  import com.liferay.portal.kernel.util.StringPool;
20  
21  import org.apache.lucene.queryParser.ParseException;
22  import org.apache.lucene.queryParser.QueryParser;
23  
24  /**
25   * <a href="QueryTranslator.java.html"><b><i>View Source</i></b></a>
26   *
27   * @author Brian Wing Shun Chan
28   */
29  public class QueryTranslator {
30  
31      public static org.apache.lucene.search.Query translate(Query query)
32          throws ParseException {
33  
34          if (query instanceof BooleanQueryImpl) {
35              return ((BooleanQueryImpl)query).getBooleanQuery();
36          }
37          else if (query instanceof LuceneQueryImpl) {
38              return ((LuceneQueryImpl)query).getQuery();
39          }
40          else if (query instanceof StringQueryImpl) {
41              QueryParser parser = new QueryParser(
42                  LuceneHelperUtil.getVersion(), StringPool.BLANK,
43                  LuceneHelperUtil.getAnalyzer());
44  
45              return parser.parse(query.toString());
46          }
47          else if (query instanceof TermQueryImpl) {
48              return ((TermQueryImpl)query).getTermQuery();
49          }
50          else {
51              return null;
52          }
53      }
54  
55  }