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Java > Open Source Codes > org > jboss > services > loggingmonitor > LoggingMonitorTimerTask


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.services.loggingmonitor;
23
24 import java.util.TimerTask JavaDoc;
25
26 import org.jboss.logging.Logger;
27
28
29 /**
30  * This class provides a repeatable task for monitoring to be
31  * executed by a timer.
32  *
33  * @author <a HREF="mailto:jimmy.wilson@acxiom.com">James Wilson</a>
34  * @author <a HREF="mailto:dimitris@jboss.org">Dimitris Andreadis</a>
35  * @version $Revision: 37459 $
36  */
37 class LoggingMonitorTimerTask extends TimerTask JavaDoc
38 {
39    private MonitoredMBean[] monitoredObjects;
40    private Logger logger;
41
42    /**
43     * Constructor.
44     *
45     * @param monitoredObjects the objects to be monitored.
46     * @param logger the logger to use for logging errors
47     */
48    public LoggingMonitorTimerTask(MonitoredMBean[] monitoredObjects, Logger logger)
49    {
50       this.monitoredObjects = monitoredObjects;
51       this.logger = logger;
52       
53       for (int i = 0; i < monitoredObjects.length; ++i)
54       {
55          // log the header message
56 monitoredObjects[i].logFormat();
57       }
58    }
59
60    /**
61     * TimerTask implementation.
62     */
63    public void run()
64    {
65       for (int i = 0; i < monitoredObjects.length; ++i)
66       {
67          try
68          {
69             monitoredObjects[i].logAttributes();
70          }
71          catch (Exception JavaDoc e)
72          {
73             logger.warn("Unable to log attributes for mbean: " + monitoredObjects[i].getObjectName(), e);
74          }
75       }
76    }
77 }
78
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