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  }