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  }