| QueryTranslator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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 public class QueryTranslator {
38
39 public static org.apache.lucene.search.Query translate(Query query)
40 throws ParseException {
41
42 if (query instanceof BooleanQueryImpl) {
43 return ((BooleanQueryImpl)query).getBooleanQuery();
44 }
45 else if (query instanceof LuceneQueryImpl) {
46 return ((LuceneQueryImpl)query).getQuery();
47 }
48 else if (query instanceof StringQueryImpl) {
49 QueryParser parser = new QueryParser(
50 StringPool.BLANK, LuceneUtil.getAnalyzer());
51
52 return parser.parse(query.toString());
53 }
54 else if (query instanceof TermQueryImpl) {
55 return ((TermQueryImpl)query).getTermQuery();
56 }
57 else {
58 return null;
59 }
60 }
61
62 }