/*

 * Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.jmx.mbeanserver;

import java.lang.reflect.Method;

import javax.management.MBeanInfo;

import javax.management.MBeanServer;

import javax.management.NotCompliantMBeanException;

import javax.management.ObjectName;

/**

 * Base class for Standard MBeans.

 *

 * @since 1.6

 */

public class StandardMBeanSupport extends MBeanSupport<Method> {

    /**

     * <p>Construct a Standard MBean that wraps the given resource using the

     * given Standard MBean interface.</p>

     *

     * @param resource the underlying resource for the new MBean.

     * @param mbeanInterfaceType the class or interface to be used to determine

     *       the MBean's management interface.  An interface if this is a

     *       classic Standard MBean; a class if this is a {@code @ManagedResource}.

     * @param <T> a type parameter that allows the compiler to check

     *       that {@code resource} implements {@code mbeanInterfaceType},

     *       provided that {@code mbeanInterfaceType} is a class constant like

     *       {@code SomeMBean.class}.

     * @throws IllegalArgumentException if {@code resource} is null or

     *       if it does not implement the class {@code mbeanInterfaceType} or if

     *       that class is not a valid Standard MBean interface.

     */

    public <T> StandardMBeanSupport(T resource, Class<T> mbeanInterfaceType)

            throws NotCompliantMBeanException {

        super(resource, mbeanInterfaceType);

    }

    @Override

    MBeanIntrospector<Method> getMBeanIntrospector() {

        return StandardMBeanIntrospector.getInstance();

    }

    @Override

    Object getCookie() {

        return null;

    }

    @Override

    public void register(MBeanServer mbs, ObjectName name) {}

    @Override

    public void unregister() {}

    /* Standard MBeans that are NotificationBroadcasters can return a different

     * MBeanNotificationInfo[] every time getMBeanInfo() is called, so we have

     * to reconstruct this MBeanInfo if necessary.

     */

    @Override

    public MBeanInfo getMBeanInfo() {

        MBeanInfo mbi = super.getMBeanInfo();

        Class<?> resourceClass = getResource().getClass();

        if (StandardMBeanIntrospector.isDefinitelyImmutableInfo(resourceClass))

            return mbi;

        return new MBeanInfo(mbi.getClassName(), mbi.getDescription(),

                mbi.getAttributes(), mbi.getConstructors(),

                mbi.getOperations(),

                MBeanIntrospector.findNotifications(getResource()),

                mbi.getDescriptor());

    }

}