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/*****************************************************************************
 * Copyright (C) NanoContainer Organization. All rights reserved.            *
 * ------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the BSD      *
 * style license a copy of which has been included with this distribution in *
 * the LICENSE.txt file.                                                     *
 *                                                                           *
 * Original code by Joerg Schaible                                           *
 *****************************************************************************/

package org.picocontainer.gems.jmx;

import javax.management.MBeanInfo;

import org.picocontainer.ComponentAdapter;
import org.picocontainer.PicoContainer;


/**
 * A MBeanInfoProvider that searches for a MBeanInfo instance in the PicoContainer. Keys of both components follow
 * naming conventions.
 * @author Jörg Schaible
 */
public class ComponentKeyConventionMBeanInfoProvider extends AbstractNamingConventionMBeanInfoProvider {

    /**
     * Use the key of the component to search for a MBeanInfo in the PicoContainer. The matching MBeanInfo must be
     * stored in the PicoContainer. The key of the MBeanInfo follows the naming scheme
     * "<ComponentKey>MBeanInfo". The the component's key is a type, the class name is used as prefix
     * otherwise the string representation of the key. The key part may already end with "MBean" as it would
     * for components registered with the management interface as key, that follow the JMX naming conventions. As last
     * resort the calculated key of the MBeanInfo is turned into a type that is used again as lookup key.
     * @see org.picocontainer.gems.jmx.MBeanInfoProvider#provide(org.picocontainer.PicoContainer,
     *      org.picocontainer.ComponentAdapter)
     */
    public MBeanInfo provide(final PicoContainer picoContainer, final ComponentAdapter componentAdapter) {
        final Object key = componentAdapter.getComponentKey();
        final String prefix = key instanceof Class ? ((Class)key).getName() : key.toString();
        final String mBeanInfoName = prefix + (prefix.endsWith("MBean") ? "Info" : "MBeanInfo");
        return instantiateMBeanInfo(mBeanInfoName, picoContainer, componentAdapter.getComponentImplementation()
                .getClassLoader());
    }

}