01: // THIS SOFTWARE IS PROVIDED BY SOFTARIS PTY.LTD. AND OTHER METABOSS
02: // CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
03: // BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
04: // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOFTARIS PTY.LTD.
05: // OR OTHER METABOSS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
06: // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
07: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
08: // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
09: // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
10: // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
11: // EVEN IF SOFTARIS PTY.LTD. OR OTHER METABOSS CONTRIBUTORS ARE ADVISED OF THE
12: // POSSIBILITY OF SUCH DAMAGE.
13: //
14: // Copyright 2000-2005 © Softaris Pty.Ltd. All Rights Reserved.
15: package com.jamonapi.management;
16:
17: import java.util.List;
18:
19: import javax.management.MBeanServer;
20: import javax.management.MBeanServerFactory;
21:
22: import org.apache.commons.logging.Log;
23: import org.apache.commons.logging.LogFactory;
24:
25: /** Set of useful utility methods. */
26: public class JMXUtils {
27: private static Log sLogger = LogFactory.getLog(JMXUtils.class);
28:
29: /** This helper method obtains the instance of the MBeanServer */
30: public static MBeanServer getMBeanServer() {
31: // The simplest implementation. It is documented to work for Tomcat
32: List servers = MBeanServerFactory.findMBeanServer(null);
33: if (servers != null && servers.size() > 0)
34: return (MBeanServer) servers.get(0);
35: sLogger
36: .warn("Unable to find any MBeanServers in the MBeanServerFactory. JMX Agent does not appear to be initialised properly. This may well be expected behaviour for simple deployments.");
37: return null;
38: }
39: }
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