| QueryTranslator.java |
1 /**
2 * Copyright (c) 2000-2009 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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portal.search.lucene;
21
22 import com.liferay.portal.kernel.search.Query;
23 import com.liferay.portal.kernel.search.StringQueryImpl;
24 import com.liferay.portal.kernel.util.StringPool;
25
26 import org.apache.lucene.queryParser.ParseException;
27 import org.apache.lucene.queryParser.QueryParser;
28
29 /**
30 * <a href="QueryTranslator.java.html"><b><i>View Source</i></b></a>
31 *
32 * @author Brian Wing Shun Chan
33 *
34 */
35 public class QueryTranslator {
36
37 public static org.apache.lucene.search.Query translate(Query query)
38 throws ParseException {
39
40 if (query instanceof BooleanQueryImpl) {
41 return ((BooleanQueryImpl)query).getBooleanQuery();
42 }
43 else if (query instanceof LuceneQueryImpl) {
44 return ((LuceneQueryImpl)query).getQuery();
45 }
46 else if (query instanceof StringQueryImpl) {
47 QueryParser parser = new QueryParser(
48 StringPool.BLANK, LuceneUtil.getAnalyzer());
49
50 return parser.parse(query.toString());
51 }
52 else if (query instanceof TermQueryImpl) {
53 return ((TermQueryImpl)query).getTermQuery();
54 }
55 else {
56 return null;
57 }
58 }
59
60 }