Connecting to MBean from a Client

[marco.rovati]

Hi, I have deployed a simple MBean from "JBoss Administration and Development" and it is correctly running under JBoss (I can see under jmx-console).
I'm trying to connect from a java client. This is the code of the client:

package it.opentur.clients;

import javax.naming.InitialContext;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;
import java.rmi.RemoteException;

public class Client_1 {
public static void main(String [] args) {
try {
Context jndiContext = getInitialContext();
Object ref = jndiContext.lookup("inmemory/map/ServiceDistributor");
}
catch (javax.naming.NamingException ne){ne.printStackTrace();}
}

public static Context getInitialContext() throws javax.naming.NamingException {
return new InitialContext();
}
}

But I have this error:

java it.opentur.clients.Client_1
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:640)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:280)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at it.opentur.clients.Client_1.main(Client_1.java:13)

Anyone have an idea?

Thank you in advance.

Regards,
Marco

[adrian.brock]

http://www.jboss.org/modules/bb/index.html?module=bb&op=viewtopic&t=forums/

[sgturner]

Here is my source code I have used to connect to an MBean from a client:

package com.tes.rmiconnector;

import java.util.*;
import javax.management.*;
import javax.naming.*;
import org.jboss.jmx.adaptor.rmi.*;
import org.jboss.jmx.connector.*;
import org.jboss.jmx.connector.rmi.RMIConnectorImpl;


public class Client {

public static void main (String[] args) throws Exception {
try {
// Set up jndi properties
Properties props = new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
props.put(Context.PROVIDER_URL, "jnp://localhost:1099");
InitialContext ctx = new InitialContext(props);
System.out.println ("Got context");

// Retrieve the RMI adaptor
Object obj = ctx.lookup("jmx:my_machine_name:rmi");
System.out.println ("Got RMI Adapter");
ctx.close();

// Wrap it in a connector
RemoteMBeanServer server = new RMIConnectorImpl((RMIAdaptor)obj);

// Print the EJB count
System.out.println(server.queryMBeans(new ObjectName("jboss.j2ee:service=EJB,*"), null).size());
}
catch (Exception ex) {
ex.printStackTrace();
}
}
}

[marco.rovati]

Ok, I run this code and I have this error:

javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory. Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory

I need to do some CLASSPATH configuration?

Bye,
Marco

[marco.rovati]

Ok, thank you.
Your sample run correctly.
Now I need to connect to my MBEAN (the jndiName is ServiceDistributor) and run a method and get a property.
How can I do this?

Thank you in advance

Regards,
Marco