1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.kernel.search.messaging;
16  
17  import com.liferay.portal.kernel.log.Log;
18  import com.liferay.portal.kernel.log.LogFactoryUtil;
19  import com.liferay.portal.kernel.messaging.Message;
20  import com.liferay.portal.kernel.messaging.MessageBusUtil;
21  import com.liferay.portal.kernel.search.Hits;
22  
23  /**
24   * <a href="SearchReaderMessageListener.java.html"><b><i>View Source</i></b></a>
25   *
26   * @author Bruno Farache
27   */
28  public class SearchReaderMessageListener
29      extends BaseSearchEngineMessageListener {
30  
31      public void receive(Message message) {
32          try {
33              doReceive(message);
34          }
35          catch (Exception e) {
36              _log.error("Unable to process message " + message, e);
37          }
38      }
39  
40      protected void doCommandSearch(Message message, SearchRequest searchRequest)
41          throws Exception {
42  
43          Hits hits = searchEngine.getSearcher().search(
44              searchRequest.getCompanyId(), searchRequest.getQuery(),
45              searchRequest.getSorts(), searchRequest.getStart(),
46              searchRequest.getEnd());
47  
48          Message responseMessage = MessageBusUtil.createResponseMessage(
49              message, hits);
50  
51          MessageBusUtil.sendMessage(
52              responseMessage.getDestinationName(), responseMessage);
53      }
54  
55      protected void doReceive(Message message) throws Exception {
56          Object payload = message.getPayload();
57  
58          if (!(payload instanceof SearchRequest)) {
59              return;
60          }
61  
62          SearchRequest searchRequest = (SearchRequest)payload;
63  
64          SearchEngineCommand searchEnginecommand =
65              searchRequest.getSearchEngineCommand();
66  
67          if (searchEnginecommand.equals(SearchEngineCommand.SEARCH)) {
68              doCommandSearch(message, searchRequest);
69          }
70      }
71  
72      private static Log _log = LogFactoryUtil.getLog(
73          SearchReaderMessageListener.class);
74  
75  }