[JBoss-user] [Management, JMX/JBoss] - Re: JMX RMI Connector from JDK1.5

[PeterJ]

Will this approach work with other app servers?  Probably.  I am in the middle 
of preparing a presentation for a conference in December (paper deadline is 
June 16th!) and I cover JMX (which is why I had a small example app already 
prepared).  I was going to try it with other app servers so I could give the 
audience some ideas on accessing other app servers, though that won't make the 
deadline cuz the week of June 12 I will be partying in Vegas (I mean, 
"attending JBossWorld and learning about all the latest JBoss-related 
technologies"; hope my boss doesn't read this forum!)

Not sure on registering for notifications, though.

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[JBoss-user] [Management, JMX/JBoss] - Re: JMX RMI Connector from JDK1.5

[wengong]

Hi Peter,

Thanks for the suggestion.  Do you by any chance know if this approach is 
applicable across different JMX containers, for example, WebLogic Server?  
Anther issue might be the registration of notifications remotely -- can I 
register for notifications remotely with the MBeanServerConnection obtained in 
this manner? 

The other reason I'd like to use native JMX RMI connector is that I can access 
other JMX container as well.

It appears remoting service from JBOSS 5 might be the answer to this.  see 
http://wiki.jboss.org/wiki/Wiki.jsp?page=JMX_Remoting_service_configuration

I'm not sure when this feature will be backported into JBOSS4.x though.

Thanks.

Wen 

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[JBoss-user] [Management, JMX/JBoss] - Re: JMX RMI Connector from JDK1.5

[PeterJ]

Yes, you can easily write a Java app to access MBeans within JBoss, and you 
don't need JDK 5 to do it.  Here is some simple code that prints out the 
attribute value of a particular mbean:

package foo.bar;
  | import java.util.Hashtable;
  | import javax.management.MBeanServerConnection;
  | import javax.management.ObjectName;
  | import javax.naming.Context;
  | import javax.naming.InitialContext;
  | public class MBean {
  | public static void main(String[] args) throws Exception {
  | Hashtable env = new Hashtable();
  | String factory = "org.jnp.interfaces.NamingContextFactory";
  | env.put(Context.INITIAL_CONTEXT_FACTORY, factory);
  | String url1 = "jnp://localhost:1099";
  | env.put(Context.PROVIDER_URL, url1);
  | Context ctx = new InitialContext(env);
  | MBeanServerConnection mconn = 
(MBeanServerConnection)ctx.lookup("jmx/invoker/RMIAdaptor");
  | ObjectName name = new 
ObjectName("jboss.jca:name=ds/ProductDS,service=ManagedConnectionPool");
  | Object val = mconn.getAttribute(name, "InUseConnectionCount");
  | System.out.println(name + "\n\tInUseConnectionCount=" + val);
  | }
  | }

Note that the MBeanServerConnection is accessed via JNDI, and not via a 
JMXServiceURL.  (My search for a way to use a JMXServiceURL never turned up any 
schemes that worked.)

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