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Glassfish example source code file (ConfigBeanRegistry.java)

This example Glassfish source code file (ConfigBeanRegistry.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

concurrenthashmap, concurrentmap, configbean, configbean, configbeanregistry, instance, management, mbeaninstance, mbeaninstance, object, object, objectname, objectname, taxonomy, threading, threads

The Glassfish ConfigBeanRegistry.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2010 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.
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 * 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:
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 * 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
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 * and therefore, elected the GPL Version 2 license, then the option applies
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/*
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 */

package org.glassfish.admin.amx.impl.config;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import javax.management.ObjectName;
import org.glassfish.external.arc.Stability;
import org.glassfish.external.arc.Taxonomy;
import org.jvnet.hk2.config.ConfigBean;

/**
 * Registry mapping ConfigBean to ObjectName and vice-versa.
 */
@Taxonomy( stability=Stability.NOT_AN_INTERFACE )
public final class ConfigBeanRegistry {
    private static void debug( final String s ) { System.out.println(s); }
    
    public static final class MBeanInstance
    {
        public final ConfigBean mConfigBean;
        public final ObjectName mObjectName;
        public final Object     mImpl;
        public MBeanInstance( final ConfigBean cb, final ObjectName on, final Object impl )
        {
            mConfigBean = cb;
            mObjectName = on;
            mImpl = impl;
        }
    }
    
    private final ConcurrentMap<ConfigBean,MBeanInstance> mFromConfigBean;
    private final ConcurrentMap<ObjectName, MBeanInstance> mFromObjectName;
    
    private ConfigBeanRegistry() {
        mFromConfigBean = new ConcurrentHashMap<ConfigBean,MBeanInstance>();
        mFromObjectName = new ConcurrentHashMap<ObjectName, MBeanInstance>();
    }
    
    private static final ConfigBeanRegistry INSTANCE = new ConfigBeanRegistry();
    public static ConfigBeanRegistry getInstance() {
        return INSTANCE;
    }

    private MBeanInstance getMBeanInstance(final ObjectName objectName)
    {
        return mFromObjectName.get(objectName);
    }

    private MBeanInstance getMBeanInstance(final ConfigBean cb)
    {
        return mFromConfigBean.get(cb);
    }

    public synchronized void  add(final ConfigBean cb, final ObjectName objectName, final Object impl)
    {
        final MBeanInstance mb = new MBeanInstance(cb, objectName, impl);
        mFromConfigBean.put(cb, mb );
        mFromObjectName.put(objectName, mb);
        //debug( "ConfigBeanRegistry.add(): " + objectName );
    }

    public synchronized void  remove(final ObjectName objectName)
    {
        final MBeanInstance mb = mFromObjectName.get(objectName);
        if ( mb != null )
        {
            mFromObjectName.remove(objectName);
            mFromConfigBean.remove(mb.mConfigBean);
        }
        //debug( "ConfigBeanRegistry.remove(): " + objectName );

    }

    public ConfigBean getConfigBean(final ObjectName objectName)
    {
        final MBeanInstance mb = getMBeanInstance(objectName);
        return mb == null ? null: mb.mConfigBean;
    }
    
    public ObjectName getObjectName(final ConfigBean cb)
    {
        final MBeanInstance mb = getMBeanInstance(cb);
        return mb == null ? null: mb.mObjectName;
    }
    
    public Object getImpl(final ObjectName objectName)
    {
        final MBeanInstance mb = getMBeanInstance(objectName);
        return mb == null ? null: mb.mImpl;
    }
    
    public Object getImpl(final ConfigBean cb)
    {
        final MBeanInstance mb = getMBeanInstance(cb);
        return cb == null ? null: mb.mImpl;
    }
}




Other Glassfish examples (source code examples)

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