Glassfish example source code file (RuntimeMBeanCageBuilder.java)

This example Glassfish source code file (RuntimeMBeanCageBuilder.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

addoncompanion, cagebuilder, inputstream, io, management, mbeanserver, modelmbeaninfo, modelmbeaninfo, objectinputstream, objectinputstream, objectname, objectname, requiredmodelmbean, requiredmodelmbean, service, string

The Glassfish RuntimeMBeanCageBuilder.java source code

/*
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 *
 * Copyright (c) 2008-2010 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:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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package net.munnangi.addon;

import org.jvnet.hk2.component.CageBuilder;
import org.jvnet.hk2.component.Inhabitant;
import org.jvnet.hk2.annotations.Service;
import javax.management.*;
import javax.management.modelmbean.*;
import java.lang.management.*;
import java.io.*;

@Service
public class RuntimeMBeanCageBuilder implements CageBuilder {

    public static int k = 0;

    public void onEntered(Inhabitant<?> i) {
        System.out.println("RuntimeMBeanCageBuilder: onEntered("+i.typeName()+"): time to create and register the mBean ...");

        Object o = i.get();
        if (o instanceof net.munnangi.addon.AddonCompanion) {
            System.out.println("instance of AddonCompanion ...");
            //System.out.println("classname = " + i.getClass().getName());
            System.out.println("getname = " + ((net.munnangi.addon.AddonCompanion)o).getName());
        } else if (o instanceof net.munnangi.addon.ConfigCompanion) {
            System.out.println("instance of ConfigCompanion ...");
            //System.out.println("classname = " + i.getClass().getName());
            System.out.println("getname = " + ((net.munnangi.addon.ConfigCompanion)o).getName());
        }

        if (k == 0) createMBean(o);
        k++;

    }



    private void createMBean(Object o) {
        System.out.println("creating mbean for o ..." + o);
        try {
            ObjectName mbon = new ObjectName("oem:name=companion");
            //Test1 t1 = new Test1();
            //System.out.println("ser res = " + t1.getClass().getResource("Test1.ser"));
            String className = o.getClass().getName();
            System.out.println("class name = " + className);
            System.out.println("ser res = " + o.getClass().getResource("AddonCompanion"+".ser"));
            InputStream fis = o.getClass().getResourceAsStream("AddonCompanion"+".ser");
            ObjectInputStream inStream = new ObjectInputStream( fis );
            ModelMBeanInfo mmbinfo1 = ( ModelMBeanInfo )inStream.readObject();
            RequiredModelMBean modelmbean = new RequiredModelMBean(mmbinfo1);
            modelmbean.setManagedResource(o, "objectReference");
            MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
            mbs.registerMBean(modelmbean,mbon);
            System.out.println("invoking value ..." + mbs.invoke(mbon, "getName", null, null));
            //System.out.println("getattr value ..." + mbs.getAttribute(mbon, "Name"));
            //System.out.println("Waiting forever..."); 
            //Thread.sleep(Long.MAX_VALUE); 
        } catch (Exception e) {
            System.out.println("MSR: exception while creating mBean ...");
            e.printStackTrace();
        }
    }

}