001    /**
002     * Copyright (c) 2000-2011 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.bi.reporting.messaging;
016    
017    import com.liferay.portal.kernel.bi.reporting.ReportDesignRetriever;
018    import com.liferay.portal.kernel.bi.reporting.ReportEngine;
019    import com.liferay.portal.kernel.bi.reporting.ReportGenerationException;
020    import com.liferay.portal.kernel.bi.reporting.ReportRequest;
021    import com.liferay.portal.kernel.bi.reporting.ReportResultContainer;
022    import com.liferay.portal.kernel.log.Log;
023    import com.liferay.portal.kernel.log.LogFactoryUtil;
024    import com.liferay.portal.kernel.messaging.Message;
025    import com.liferay.portal.kernel.messaging.MessageBusUtil;
026    import com.liferay.portal.kernel.messaging.MessageListener;
027    
028    /**
029     * @author Michael C. Han
030     */
031    public class ReportCompilerRequestMessageListener implements MessageListener {
032    
033            public ReportCompilerRequestMessageListener(
034                    ReportEngine reportEngine,
035                    ReportResultContainer reportResultContainer) {
036    
037                    _reportEngine = reportEngine;
038                    _reportResultContainer = reportResultContainer;
039            }
040    
041            public void receive(Message message) {
042                    ReportRequest reportRequest = (ReportRequest)message.getPayload();
043    
044                    ReportDesignRetriever reportDesignRetriever =
045                            reportRequest.getReportDesignRetriever();
046    
047                    ReportResultContainer reportResultContainer =
048                            _reportResultContainer.clone(reportDesignRetriever.getReportName());
049    
050                    try {
051                            _reportEngine.compile(reportRequest);
052                    }
053                    catch (ReportGenerationException rge) {
054                            _log.error("Unable to compile report", rge);
055    
056                            reportResultContainer.setReportGenerationException(rge);
057                    }
058                    finally {
059                            Message responseMessage = MessageBusUtil.createResponseMessage(
060                                    message, reportResultContainer);
061    
062                            responseMessage.setPayload(reportResultContainer);
063    
064                            MessageBusUtil.sendMessage(
065                                    responseMessage.getDestinationName(), responseMessage);
066                    }
067            }
068    
069            private static Log _log = LogFactoryUtil.getLog(
070                    ReportCompilerRequestMessageListener.class);
071    
072            private ReportEngine _reportEngine;
073            private ReportResultContainer _reportResultContainer;
074    
075    }