Hi All,
Please forgive me if this question is uninformed.
I'm trying to create a custom MBean. I found the section in
the documentation on "Custom MBeans"
(http://www.jboss.org/manual/adv_config.html#custom).
Following the directions, I first implemented my service, sublassing
org.jboss.util.ServiceMBean and org.jboss.util.ServiceMBeanSupport.
I called this class TestService:
package com.experient.toolbox.chuchu;
import javax.management.MalformedObjectNameException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import org.jboss.logging.Log;
import org.jboss.util.ServiceMBeanSupport;
public class TestService extends ServiceMBeanSupport implements
org.jboss.util.ServiceMBean, TestServiceMBean {
private Log myLog = new Log("TestService");
public TestService () {
System.out.println("Constructing TestService");
}
public ObjectName getObjectName (MBeanServer server, ObjectName name)
throws MalformedObjectNameException {
return new ObjectName(OBJECT_NAME);
}
public String getName () {
return "TestService";
}
public void startService () {
System.out.println("Starting TestService");
}
public void stopService () {
myLog.log ("Stopping TestService");
}
}
Comparing my class to other services that come with jBoss, I realized I
needed to implement a TestServiceMBean interface:
package com.experient.toolbox.chuchu;
public interface TestServiceMBean {
public static final String OBJECT_NAME = ":service=TestService";
}
Next, I added the following line to jboss.conf so it would be recognized as
a service:
<MLET CODE = "com.experient.toolbox.chuchu.TestService"
ARCHIVE="experient.jar,jboss.jar" CODEBASE="../lib/ext/"></MLET>
Where experient.jar contains all of my company-proprietary class files,
including the TestService and TestServiceMBean classes
I just described.
Finally, I tried running jBoss with the run.sh command. It starts up fine,
and even "initializes" my TestService (calls the
constructor), but for the life of me, I cannot get it to call my
"startService" method. I've also tried adding this
to jboss.dependencies in the form of:
<service name="TestService"></service>
but this has not helped.
I'm running this on Sun 1.2.2/Redhat Linux/jBoss beta 3 (downloaded this
morning). I'm pretty sure my classpath is set up correctly, since jBoss
is successfully instantiating my TestService object.
I've delved into org.jboss.dependency.DependencyManager a bit, and my
TestService appears to not be starting as a result
of this block of code in DependencyManager.startMBean(ObjectName name):
try {
server.invoke(name, "start", new Object[0], new String[0]);
loaded = true;
} catch(ReflectionException e) {
if(e.getTargetException() instanceof NoSuchMethodException) {
loaded = true; // This bean doesn't have a start!
} else {
System.out.println("Error starting service
'"+name.getCanonicalName()+"': "+e.getTargetException());
}
} catch(Throwable t) {
System.out.println("Error starting service
'"+name.getCanonicalName()+"': "+t);
}
When jBoss tries to start TestService, the MBeanServer instance 'server'
throws a ReflectionException with a NoSuchMethodException inside. I've
tried looking at com.sun implementation of the MBeanServer and it's 'invoke'
method, but that's pretty nasty. Does it try to invoke a method named
"start"?
Can anyone help a newbie out? Any help would be greatly appreciated.
Thank you,
Adam Rabung
[EMAIL PROTECTED]
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