Glassfish example source code file (MEJBTest.java)

This example Glassfish source code file (MEJBTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

exception, exception, management, management, managementhome, managementhome, mejb, mejbtest, naming, object, objectname, objectname, programmaticlogin, rmi, string, string, stringbuffer, util

The Glassfish MEJBTest.java source code

/*
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 *
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 *
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

/**
 *
 */
package org.glassfish.admin.mejb.test;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.Properties;
import javax.rmi.PortableRemoteObject;
import javax.management.AttributeList;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanInfo;
import javax.management.Notification;
import javax.management.NotificationFilter;
import javax.management.NotificationListener;
import javax.management.ObjectName;
import javax.management.j2ee.ListenerRegistration;
import javax.naming.Context;
import javax.naming.InitialContext;

import javax.management.j2ee.ManagementHome;
import org.glassfish.external.amx.AMXGlassfish;

import javax.management.j2ee.Management;

import com.sun.appserv.security.ProgrammaticLogin;


import org.junit.Ignore;

/**
    Standalone MEJB test -- requires running server and disabling security on MEJB.
    
export V3M=/v3/glassfish/modules
export MAIN=org.glassfish.admin.mejb.test.MEJBTest
java -cp $V3M/gf-client.jar:$V3M/javax.management.j2ee.jar:target/MEJB.jar $MAIN

 */
@Ignore
public class MEJBTest {    
    private final Management mMEJB;
    
    public MEJBTest( final Management mejb )
    {
        mMEJB = mejb;
    }
    
    private void test() {
        try
        {
            _test();
        }
        catch( final Exception e)
        {
            e.printStackTrace();
        }
        println( "DONE with MEJB test." );
    }
    
    
    private void testMBean( final ObjectName objectName)
        throws Exception
    {
        println( "" );
        println( "" + objectName );
        
        final Management mejb = mMEJB;
        final MBeanInfo info = mejb.getMBeanInfo(objectName);
        final String[] attrNames = getAttributeNames( info.getAttributes() );
        
        println( "attributes: " + toString( newListFromArray(attrNames), ", " ) );
        
        final AttributeList list = mejb.getAttributes( objectName, attrNames );
        
        for( final String attrName : attrNames)
        {
            try
            {
                final Object value = mejb.getAttribute( objectName, attrName );
            }
            catch( Exception e )
            {
                println( "Attribute failed: " + attrName );
            }
        }
    }
    
    private void _test()
        throws Exception
    {
        final Management mejb = mMEJB;
        
        final String defaultDomain = mejb.getDefaultDomain();
        println("MEJB default domain = " + defaultDomain + ", MBeanCount = " + mejb.getMBeanCount() );
        
        final String domain = AMXGlassfish.DEFAULT.amxJMXDomain();
        final ObjectName pattern = newObjectName( domain + ":*" );
        final Set<ObjectName> items = mejb.queryNames( pattern, null);
        println("Queried " + pattern + ", got mbeans: " + items.size() );
        for( final ObjectName objectName : items )
        {
            if ( mejb.isRegistered(objectName) )
            {
                testMBean(objectName);
            }
        }
        
        // add listeners to all
        println( "Listener are not supported, skipping." );
        /*
        println( "Adding listeners to every MBean..." );
        
        final ListenerRegistration reg = mejb.getListenerRegistry();
        println( "Got ListenerRegistration: " + reg );
        final NotificationListener listener = new NotifListener();
        for( final ObjectName objectName : items )
        {
            if ( mejb.isRegistered(objectName) )
            {
                final NotificationFilter filter = null;
                final Object handback = null;
                try {
                    reg.addNotificationListener( objectName, listener, filter, handback );
                }
                catch( final Exception e )
                {
                    e.printStackTrace();
                }
            }
        }
        */
    }
    
    
    private static final class NotifListener implements NotificationListener
    {
        public NotifListener()
        {
        }
        
        public void handleNotification( final Notification notif, final Object handback )
        {
            System.out.println( "NotifListener: " + notif);
        }
    }

		public static String
	toString(
		final Collection<?> c,
		final String	 delim )
	{
        final StringBuffer buf = new StringBuffer();
        
        for( final Object item : c )
        {
            buf.append( "" + item );
            buf.append( delim );
        }
        if( c.size() != 0)
        {
            buf.setLength( buf.length() - delim.length() );
        }
        
        return buf.toString();
    }
            
		public static <T> List
	newListFromArray( final T []  items )
	{
		final List<T>	list	= new ArrayList();
		
		for( int i = 0; i < items.length; ++i )
		{
			list.add( items[ i ] );
		}

		return( list );
	}


	public static String []
	getAttributeNames( final MBeanAttributeInfo[]	infos  )
	{
		final String[]	names	= new String[ infos.length ];
		
		for( int i = 0; i < infos.length; ++i )
		{
			names[ i ]	= infos[ i ].getName();
		}
		
		return( names );
	}

    static ObjectName
	newObjectName( final String name )
	{
		try
		{
			return( new ObjectName( name ) ); 
		}
		catch( Exception e )
		{
			throw new RuntimeException( e.getMessage(), e );
		}
	}



public static void main(String[] args) {
    try {
        final String mejbName = "java:global/mejb/MEJBBean";
        final String username = "admin";
        final String password = "";
        final String realm = "admin-realm";
        System.out.println( "Authenticating with \"" + username + "\", \"" + password + "\"");
        
        final ProgrammaticLogin pm = new ProgrammaticLogin();
        pm.login( username, password, realm, true);

        println("Looking up: " + mejbName);
        final InitialContext initial = new InitialContext();
        final Object objref = initial.lookup(mejbName);

        final ManagementHome home = (ManagementHome) PortableRemoteObject.narrow(objref, ManagementHome.class);
        try
        {
            final ManagementHome home2 = (ManagementHome)objref;
        }
        catch( final Exception e )
        {
            println("WARNING: (ManagementHome)PortableRemoteObject.narrow(objref, ManagementHome.class) works, but (ManagementHome)objref does not!" );
        }
        
        //println("ManagementHome: " + home + " for " + mejbName);
        final Management mejb = (Management)home.create();
        println("Got the MEJB");

        new MEJBTest( mejb ).test();

        println( "Calling mejb.remove()" );
        mejb.remove();

    } catch (Exception ex) {
        System.err.println("Caught an unexpected exception!");
        ex.printStackTrace();
    }
    println( "Exiting main() forcibly" );
    System.exit( -1 );
}

    private static final void println(final Object o) {
        System.out.println("" + o);
    }
}