org/objectweb/proactive/core/classloader/ProActiveRMIClassLoaderSpi.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.org
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *  
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.core.classloader;

import java.net.MalformedURLException;
import java.rmi.server.RMIClassLoader;
import java.rmi.server.RMIClassLoaderSpi;


public class ProActiveRMIClassLoaderSpi extends RMIClassLoaderSpi {
    private ClassLoader proActiveClassLoader = null;
    RMIClassLoaderSpi rmiClassLoaderSpi = RMIClassLoader.getDefaultProviderInstance();
    private boolean useProActiveClassLoader = ClassLoader.getSystemClassLoader()
                                                         .toString().startsWith("org.objectweb.proactive.core.classloader.ProActiveClassLoader");

    public ProActiveRMIClassLoaderSpi() {
        if (useProActiveClassLoader) {
            // enforce defaultLoader
            proActiveClassLoader = ClassLoader.getSystemClassLoader();
        }
    }

    public Class<?> loadClass(String codebase, String name,
        ClassLoader defaultLoader)
        throws MalformedURLException, ClassNotFoundException {
        return rmiClassLoaderSpi.loadClass(codebase, name,
            ((proActiveClassLoader != null) ? proActiveClassLoader : defaultLoader));
    }

    public Class<?> loadProxyClass(String codebase, String[] interfaces,
        ClassLoader defaultLoader)
        throws MalformedURLException, ClassNotFoundException {
        return rmiClassLoaderSpi.loadProxyClass(codebase, interfaces,
            ((proActiveClassLoader != null) ? proActiveClassLoader : defaultLoader));
    }

    /*
     * @see RMIClassLoaderSpi#getClassLoader(java.lang.String)
     */
    public ClassLoader getClassLoader(String codebase)
        throws MalformedURLException {
        if (proActiveClassLoader != null) {
            return proActiveClassLoader;
        } else {
            return rmiClassLoaderSpi.getClassLoader(codebase);
        }
    }

    /*
     * @see RMIClassLoaderSpi#getClassAnnotation(java.lang.Class)
     */
    public String getClassAnnotation(Class arg0) {
        return rmiClassLoaderSpi.getClassAnnotation(arg0);
    }
}

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