alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Glassfish example source code file (MBeanServerConnectionMethods.java)

This example Glassfish source code file (MBeanServerConnectionMethods.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

class, class, exception, management, mbeanserverconnectionmethods, method, method, notificationlistener, objectname, objectname, reflection, runtimeexception, string, string

The Glassfish MBeanServerConnectionMethods.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2006-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * 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:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * 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
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * MBeanServerConnectionMethods.java
 * $Id: MBeanServerConnectionMethods.java,v 1.3 2005/12/25 04:26:34 tcfujii Exp $
 * $Revision: 1.3 $
 * $Date: 2005/12/25 04:26:34 $
 * Indentation Information:
 * 0. Please (try to) preserve these settings.
 * 1. Tabs are preferred over spaces.
 * 2. In vi/vim -
 *		:set tabstop=4 :set shiftwidth=4 :set softtabstop=4
 * 3. In S1 Studio -
 *		1. Tools->Options->Editor Settings->Java Editor->Tab Size = 4
 *		2. Tools->Options->Indentation Engines->Java Indentation Engine->Expand Tabs to Spaces = False.
 *		3. Tools->Options->Indentation Engines->Java Indentation Engine->Number of Spaces per Tab = 4.
 * Unit Testing Information:
 * 0. Is Standard Unit Test Written (y/n):
 * 1. Unit Test Location: (The instructions should be in the Unit Test Class itself).
 */

package com.sun.enterprise.admin.jmx.remote.internal;
import java.lang.reflect.Method;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.NotificationFilter;
import javax.management.NotificationListener;
import javax.management.remote.message.MBeanServerRequestMessage;

/** A class that links the class {@link MBeanServerRequestMessage} and interface {@link MBeanServerConnection}.
 * The former of the two contains integers that has ids of the methods in the latter.
 * Instead of designing an enum kind of construct I chose to take the reflection-oriented
 * path because I did not want to worry about the internationalization etc. The cost
 * is one-time and is bourne at the time of loading this class. The class is loaded
 * as late as possible. Note that this class depends on the constant value fields from
 * {@link MBeanServerRequestMessage}
 * @author  mailto:Kedar.Mhaswade@Sun.Com
 * @since Sun Java System Application Server 8
 */
class MBeanServerConnectionMethods {

    private static String[] names = new String[0];
    static {
        initializeMethods();
    }
    
    private MBeanServerConnectionMethods() {
        //disallow
    }
    
    private static void initializeMethods() {
        try {
            final Method[] methods = javax.management.MBeanServerConnection.class.getDeclaredMethods();
            names = new String[methods.length];
            for (int i = 0 ; i < methods.length ; i++) {
                indexMethod(methods[i]);
            }    
        }
        catch(final Exception e) {
            throw new RuntimeException (e);
        }
    }
    
    private static void indexMethod(final Method am) {
        final String m = am.getName();
        if ("getAttribute".equals(m))
            names[MBeanServerRequestMessage.GET_ATTRIBUTE] = am.toString();
        else if ("getAttributes".equals(m))
            names[MBeanServerRequestMessage.GET_ATTRIBUTES] = am.toString();
        else if ("getDefaultDomain".equals(m))
            names[MBeanServerRequestMessage.GET_DEFAULT_DOMAIN] = am.toString();
        else if ("getDomains".equals(m))
            names[MBeanServerRequestMessage.GET_DOMAINS] = am.toString();
        else if ("getMBeanCount".equals(m))
            names[MBeanServerRequestMessage.GET_MBEAN_COUNT] = am.toString();
        else if ("getMBeanInfo".equals(m))
            names[MBeanServerRequestMessage.GET_MBEAN_INFO] = am.toString();
        else if ("getObjectInstance".equals(m))
            names[MBeanServerRequestMessage.GET_OBJECT_INSTANCE] = am.toString();
        else if ("invoke".equals(m))
            names[MBeanServerRequestMessage.INVOKE] = am.toString();
        else if ("isInstanceOf".equals(m))
            names[MBeanServerRequestMessage.IS_INSTANCE_OF] = am.toString();
        else if ("isRegistered".equals(m))
            names[MBeanServerRequestMessage.IS_REGISTERED] = am.toString();
        else if ("queryMBeans".equals(m))
            names[MBeanServerRequestMessage.QUERY_MBEANS] = am.toString();
        else if ("queryNames".equals(m))
            names[MBeanServerRequestMessage.QUERY_NAMES] = am.toString();
        else if ("setAttribute".equals(m))
            names[MBeanServerRequestMessage.SET_ATTRIBUTE] = am.toString();
        else if ("setAttributes".equals(m))
            names[MBeanServerRequestMessage.SET_ATTRIBUTES] = am.toString();
        else if ("unregisterMBean".equals(m))
            names[MBeanServerRequestMessage.UNREGISTER_MBEAN] = am.toString();
        else if ("addNotificationListener".equals(m))
            indexAddNotificationListenerMethod(am);
        else if ("createMBean".equals(m))
            indexCreateMBeanMethod(am);
        else if ("removeNotificationListener".equals(m))
            indexRemoveNotificationListenerMethod(am);
    }
    
    private static void indexAddNotificationListenerMethod(final Method m) {
        final Class[] params = m.getParameterTypes(); //this is ordered list, has to have 4 elements.
        //indexing on the second parameter - it can either be ObjectName or NotificationListener
        if (params[1].getName().indexOf("ObjectName") != -1)
            names[MBeanServerRequestMessage.ADD_NOTIFICATION_LISTENER_OBJECTNAME] = m.toString();
        else {
            assert (params[1].getName().indexOf("NotificationListener")) != -1;
            names[MBeanServerRequestMessage.ADD_NOTIFICATION_LISTENERS] = m.toString();
        }
    }
    private static void indexCreateMBeanMethod(final Method m) {
        final Class[] params = m.getParameterTypes(); //this is ordered list, has to have 2, 3, 4 or 5 elements.
        final int n = params.length;
        if (n == 2)
            names[MBeanServerRequestMessage.CREATE_MBEAN] = m.toString();
        else if (n == 3)
            names[MBeanServerRequestMessage.CREATE_MBEAN_LOADER] = m.toString();
        else if (n == 4)
            names[MBeanServerRequestMessage.CREATE_MBEAN_PARAMS] = m.toString();
        else //has to be 5
            names[MBeanServerRequestMessage.CREATE_MBEAN_LOADER_PARAMS] = m.toString();
    }
    private static void indexRemoveNotificationListenerMethod(final Method m) {
        final Class[] params = m.getParameterTypes(); //this is ordered list, has to have 2, or 4 elements.
        final int n = params.length;
        if (n == 2) {
            if (params[1].getName().indexOf("ObjectName") != -1)
                names[MBeanServerRequestMessage.REMOVE_NOTIFICATION_LISTENER_OBJECTNAME] = m.toString();
            else
                names[MBeanServerRequestMessage.REMOVE_NOTIFICATION_LISTENER] = m.toString();
        }
        else {// has to be 4
            if (params[1].getName().indexOf("ObjectName") != -1)
                names[MBeanServerRequestMessage.REMOVE_NOTIFICATION_LISTENER_OBJECTNAME_FILTER_HANDBACK] = m.toString();
            else
                names[MBeanServerRequestMessage.REMOVE_NOTIFICATION_LISTENER_FILTER_HANDBACK] = m.toString();            
        }
    }
    String getName(final int id) {
        return ( names[id] );
    }
}

Other Glassfish examples (source code examples)

Here is a short list of links related to this Glassfish MBeanServerConnectionMethods.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.