Hi,
I'm trying to create an XMBean that listens for notifications from a Timer
XMBean. It should simply log the notification and handback when it receives
one. However, I never see the logging statement indicating my MBean has started
up (or shut down for that matter), and when I look at the logs, I see these
entries around my code:
| 2007-06-04 15:11:23,960 DEBUG [org.jboss.system.ServiceCreator] About to
create xmbean object: domain.com:service=OmsService with code:
com.domain.oms.xmbeans.impl.OmsService with descriptor: META-INF/oms-xmbean.xml
| 2007-06-04 15:11:23,991 DEBUG [org.jboss.system.ServiceCreator] Created
bean: domain.com:service=OmsService
| 2007-06-04 15:11:23,991 DEBUG [org.jboss.system.ServiceConfigurator]
SubscriptionList set to [subscription-list: null] in
domain.com:service=OmsService
|
I'm putting all of my class files, the jboss-service.xml, and the
oms-xmbean.xml file in a .sar file (oms.sar) and deploying to a JBoss 4.2.0 GA
server. Here are the two source code files:
OmsService.java:
| package com.domain.oms.xmbeans.impl;
|
| import org.jboss.system.ListenerServiceMBeanSupport;
| import org.jboss.logging.Logger;
|
| import javax.management.Notification;
|
| import com.domain.oms.xmbeans.OmsServiceMBean;
|
| public class OmsService extends ListenerServiceMBeanSupport implements
OmsServiceMBean {
| private static final Logger LOG =
Logger.getLogger(OmsService.class.getName());
|
| public OmsService() {
| super();
| }
| /*
| public String getName() {
| return "OmsService";
| }
| */
| public void startService() throws Exception {
| LOG.info("oms service starting up");
| super.subscribe(true);
| }
|
| public void stopService() throws Exception {
| LOG.info("stopping oms service");
| super.unsubscribe();
| }
|
| public void handleNotification2(Notification notification, Object
handback) {
| LOG.info("got " + notification + ", " + handback);
| }
| }
|
OmsServiceMBean.java:
| package com.domain.oms.xmbeans;
|
| import org.jboss.system.ListenerServiceMBean;
|
| public interface OmsServiceMBean extends ListenerServiceMBean {
| }
|
And the .xml files:
jboss-service.xml:
| <?xml version="1.0" encoding="UTF-8"?>
| <!DOCTYPE server PUBLIC "-//JBoss//DTD MBean Service 4.2//EN"
"http://www.jboss.org/j2ee/dtd/jboss-service_4_2.dtd";>
| <server>
| <mbean code="com.domain.oms.xmbeans.impl.OmsService"
name="domain.com:service=OmsService" xmbean-dd="META-INF/oms-xmbean.xml">
| <attribute name="SubscriptionList">
| <subscription-list>
| <mbean
name="jboss.monitor:name=Heartbeat,type=Timer">
| <notification
type="jboss.monitor.heartbeat"/>
| </mbean>
| </subscription-list>
| </attribute>
| </mbean>
| </server>
|
oms-xmbean.xml:
| <?xml version="1.0" encoding="UTF-8"?>
| <!DOCTYPE mbean PUBLIC "-//JBoss//DTD JBOSS XMBEAN 1.2//EN"
"http://www.jboss.org/j2ee/dtd/jboss_xmbean_1_2.dtd";>
| <mbean>
| <description>oms service</description>
| <class>com.domain.oms.xmbeans.impl.OmsService</class>
| <constructor>
| <description>the default constructor</description>
| <name>OmsService</name>
| </constructor>
| <attribute access="write-only" setMethod="setSubscriptionList">
| <name>SubscriptionList</name>
| <type>org.w3c.dom.Element</type>
| </attribute>
| <operation>
| <name>startService</name>
| <return-type>void</return-type>
| </operation>
| <operation>
| <name>stopService</name>
| <return-type>void</return-type>
| </operation>
| <operation>
| <name>handleNotification2</name>
| <parameter>
| <name>notification</name>
| <type>javax.management.Notification</type>
| </parameter>
| <parameter>
| <name>handback</name>
| <type>java.lang.Object</type>
| </parameter>
| <return-type>void</return-type>
| </operation>
| </mbean>
|
Can someone tell me what I'm doing wrong? I've been debugging this for the last
4 days and getting nowhere. I can't determine why the subscription-list element
is coming back null, or why the service start method is never invoked.
By the way, I did enable the Timer (heartbeat) service in jboss-monitoring.xml.
Any help would be SO greatly appreciated,
Thanks,
Gabe
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