001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
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    }