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.monitoring.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.MessageListener;
021    import com.liferay.portal.monitoring.statistics.DataSample;
022    import com.liferay.portal.monitoring.statistics.DataSampleProcessor;
023    
024    /**
025     * @author Michael C. Han
026     * @author Brian Wing Shun Chan
027     */
028    public class MonitoringMessageListener implements MessageListener {
029    
030            public void receive(Message message) {
031                    try {
032                            doReceive(message);
033                    }
034                    catch (Exception e) {
035                            _log.error("Unable to process message " + message, e);
036                    }
037            }
038    
039            public void setDataSampleProcessor(
040                    DataSampleProcessor<DataSample> dataSampleProcessor) {
041    
042                    _dataSampleProcessor = dataSampleProcessor;
043            }
044    
045            protected void doReceive(Message message) throws Exception {
046                    DataSample dataSample = (DataSample)message.getPayload();
047    
048                    if (dataSample != null) {
049                            _dataSampleProcessor.processDataSample(dataSample);
050                    }
051            }
052    
053            private static Log _log = LogFactoryUtil.getLog(
054                    MonitoringMessageListener.class);
055    
056            private DataSampleProcessor<DataSample> _dataSampleProcessor;
057    
058    }