Package org.nanocontainer.aop.dynaop

Source Code of org.nanocontainer.aop.dynaop.PicoContainerProxy

/*****************************************************************************
* Copyright (c) PicoContainer 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.                                                     *
*                                                                           *
* Idea by Rachel Davies, Original code by various                           *
*****************************************************************************/
package org.nanocontainer.aop.dynaop;

import dynaop.Aspects;
import dynaop.Interceptor;
import dynaop.Invocation;
import dynaop.Pointcuts;
import dynaop.ProxyFactory;
import org.picocontainer.PicoContainer;

/**
* Creates dynamically generated <code>PicoContainer</code> proxy objects that
* delegate to a <code>PicoContainer</code> supplied by a
* <code>ContainerLoader</code>.
*
* @author Stephen Molitor
* @version $Revision: 1631 $
*/
class PicoContainerProxy implements Interceptor {

    private final ContainerLoader containerLoader;

    /**
     * Creates a <code>PicoContainer</code> proxy that delegates to a
     * <code>PicoContainer</code> provided by <code>containerLoader</code>.
     *
     * @param containerLoader the container loader.
     * @return the dynamically generated proxy.
     */
    static PicoContainer create(ContainerLoader containerLoader) {
        Aspects aspects = new Aspects();
        aspects.interceptor(Pointcuts.ALL_CLASSES, Pointcuts.ALL_METHODS, new PicoContainerProxy(containerLoader));
        aspects.interfaces(Pointcuts.ALL_CLASSES, new Class[]{PicoContainer.class});
        return (PicoContainer) ProxyFactory.getInstance(aspects).wrap(new Object());
    }

    public Object intercept(Invocation invocation) throws Throwable {
        return invocation.getMethod().invoke(containerLoader.getContainer(), invocation.getArguments());
    }

    private PicoContainerProxy(ContainerLoader containerLoader) {
        this.containerLoader = containerLoader;
    }

}
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