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.monitoring.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.MessageListener;
21  import com.liferay.portal.monitoring.statistics.DataSample;
22  import com.liferay.portal.monitoring.statistics.DataSampleProcessor;
23  
24  /**
25   * <a href="MonitoringMessageListener.java.html"><b><i>View Source</i></b></a>
26   *
27   * @author Michael C. Han
28   * @author Brian Wing Shun Chan
29   */
30  public class MonitoringMessageListener implements MessageListener {
31  
32      public void receive(Message message) {
33          try {
34              doReceive(message);
35          }
36          catch (Exception e) {
37              _log.error("Unable to process message " + message, e);
38          }
39      }
40  
41      public void setDataSampleProcessor(
42          DataSampleProcessor<DataSample> dataSampleProcessor) {
43  
44          _dataSampleProcessor = dataSampleProcessor;
45      }
46  
47      protected void doReceive(Message message) throws Exception {
48          DataSample dataSample = (DataSample)message.getPayload();
49  
50          if (dataSample != null) {
51              _dataSampleProcessor.processDataSample(dataSample);
52          }
53      }
54  
55      private static Log _log = LogFactoryUtil.getLog(
56          MonitoringMessageListener.class);
57  
58      private DataSampleProcessor<DataSample> _dataSampleProcessor;
59  
60  }