001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.kernel.search.messaging;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.messaging.Message;
020    import com.liferay.portal.kernel.messaging.MessageBusUtil;
021    import com.liferay.portal.kernel.search.Hits;
022    
023    /**
024     * @author Bruno Farache
025     */
026    public class SearchReaderMessageListener
027            extends BaseSearchEngineMessageListener {
028    
029            public void receive(Message message) {
030                    try {
031                            doReceive(message);
032                    }
033                    catch (Exception e) {
034                            _log.error("Unable to process message " + message, e);
035                    }
036            }
037    
038            protected void doCommandSearch(Message message, SearchRequest searchRequest)
039                    throws Exception {
040    
041                    Hits hits = searchEngine.getSearcher().search(
042                            searchRequest.getCompanyId(), searchRequest.getQuery(),
043                            searchRequest.getSorts(), searchRequest.getStart(),
044                            searchRequest.getEnd());
045    
046                    Message responseMessage = MessageBusUtil.createResponseMessage(
047                            message, hits);
048    
049                    MessageBusUtil.sendMessage(
050                            responseMessage.getDestinationName(), responseMessage);
051            }
052    
053            protected void doReceive(Message message) throws Exception {
054                    Object payload = message.getPayload();
055    
056                    if (!(payload instanceof SearchRequest)) {
057                            return;
058                    }
059    
060                    SearchRequest searchRequest = (SearchRequest)payload;
061    
062                    SearchEngineCommand searchEnginecommand =
063                            searchRequest.getSearchEngineCommand();
064    
065                    if (searchEnginecommand.equals(SearchEngineCommand.SEARCH)) {
066                            doCommandSearch(message, searchRequest);
067                    }
068            }
069    
070            private static Log _log = LogFactoryUtil.getLog(
071                    SearchReaderMessageListener.class);
072    
073    }