| QueryTranslator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.search.lucene;
24
25 import com.liferay.portal.kernel.search.Query;
26 import com.liferay.portal.kernel.search.StringQueryImpl;
27 import com.liferay.portal.kernel.util.StringPool;
28
29 import org.apache.lucene.queryParser.ParseException;
30 import org.apache.lucene.queryParser.QueryParser;
31
32 /**
33 * <a href="QueryTranslator.java.html"><b><i>View Source</i></b></a>
34 *
35 * @author Brian Wing Shun Chan
36 *
37 */
38 public class QueryTranslator {
39
40 public static org.apache.lucene.search.Query translate(Query query)
41 throws ParseException {
42
43 if (query instanceof BooleanQueryImpl) {
44 return ((BooleanQueryImpl)query).getBooleanQuery();
45 }
46 else if (query instanceof LuceneQueryImpl) {
47 return ((LuceneQueryImpl)query).getQuery();
48 }
49 else if (query instanceof StringQueryImpl) {
50 QueryParser parser = new QueryParser(
51 StringPool.BLANK, LuceneUtil.getAnalyzer());
52
53 return parser.parse(query.toString());
54 }
55 else if (query instanceof TermQueryImpl) {
56 return ((TermQueryImpl)query).getTermQuery();
57 }
58 else {
59 return null;
60 }
61 }
62
63 }