You can put an atomic incrementor in your EJB:
int count = 0;
private incremenetCallCount() {
count++;
}
public getCallCount() {
return count;
}
public resetCount() {
count = 0;
}
These are not synchronized, but they you shouldn't access threading
in your EJB. Anyway, the count will be really dyanmic, so you might lose one
here and there on a call to reset.
But then you could deploy a Model MBean for this in Jboss to read
the getCallCount() method.
If you look at
http://sourceforge.net/project/showfiles.php?group_id=53232&release_id=92640
the dynamicManagement package contains a few classes that dynamicall
create model mbeans. The package has an example server that will start a
local JMX agent, then scan a JNDI tree, and then use introspection to create
a model mbean for each object or EJB listed in your JNDI tree.
You could then look at all the MBeans in that JMX agent to monitor
how many times your EJB's are called. Or you could use the source to see how
to deploy it right into JBoss.
hope that helps,
lucas mcgregor
-----Original Message-----
From: Michael Klem [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 21, 2002 12:50 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [JBoss-user] JMX & JBoss question
I am using JMX with JBoss 2.4.4 and came across a confusing
situation. I want to use JMX to monitor how many times each ejb is
called and how long each ejb takes to process a specific command.
It seems that to make this work easily I would have to create one
mbean for each ejb. For example, EJB1MBean, EJB2MBean, EJB3MBean.
This is not good since the code in each MBean would be identical.
This will, however, allow me to view the data in my browser.
I would prefer to have an MBean that uses a hashmap to contain an
MBean for each ejb. If I do this, I cannot view the MBeans contained
in the hashmap.
I am currently reading about dynamic MBeans. Any ideas?
--
"If something is too hard, give up. The moral my boy is to never try
anything." - Homer
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