/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ejb3.stateless;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import javassist.util.proxy.MethodHandler;
import javassist.util.proxy.ProxyFactory;
import javassist.util.proxy.ProxyObject;
/**
* Comment
*
* @author <a href="mailto:carlo@nerdnet.nl">Carlo de Wolf</a>
* @version $Revision: 60233 $
*/
public class JavassistProxy implements Serializable
{
private static final long serialVersionUID = 1L;
private MethodHandler handler;
private Class interfaces[];
// /**
// * Public because of classloading?
// */
// public static class JavassistProxyReplacement extends JavassistProxy
// {
// public void setHandler(MethodHandler handler)
// {
// throw new RuntimeException("should never happen");
// }
// }
//
/**
* With this method you can directly poke interfaces into the
* proxy without setting of the method handler.
*
* @param proxy
* @param interfaces
*/
protected static void pokeInterfaces(JavassistProxy proxy, Class interfaces[]) {
proxy.interfaces = interfaces;
}
private Object readResolve() throws ObjectStreamException
{
System.err.println("JavassistProxy.readResolve");
try {
ProxyFactory proxyFactory = new ProxyFactory() {
protected ClassLoader getClassLoader()
{
return Thread.currentThread().getContextClassLoader();
}
};
proxyFactory.setInterfaces(interfaces);
proxyFactory.setSuperclass(JavassistProxy.class);
Class proxyClass = proxyFactory.createClass();
Constructor proxyConstructor = proxyClass.getConstructor((Class[]) null);
JavassistProxy proxy = (JavassistProxy) proxyConstructor.newInstance((Object[]) null);
proxy.setMethodHandler(this.handler);
proxy.interfaces = this.interfaces;
return proxy;
}
catch (NoSuchMethodException e)
{
throw new RuntimeException(e);
}
catch (InstantiationException e)
{
throw new RuntimeException(e);
}
catch (IllegalAccessException e)
{
throw new RuntimeException(e);
}
catch (InvocationTargetException e)
{
throw new RuntimeException(e.getTargetException());
}
}
protected void setInterfaces(Class interfaces[])
{
// TODO: check whether I get true interfaces
this.interfaces = interfaces;
}
protected void setMethodHandler(MethodHandler handler)
{
// LOL
((ProxyObject) this).setHandler(handler);
this.handler = handler;
}
private Object writeReplace() throws ObjectStreamException
{
System.err.println("JavassistProxy.writeReplace");
JavassistProxy replacement = new JavassistProxyReplacement();
replacement.handler = this.handler;
replacement.interfaces = this.interfaces;
return replacement;
}
}
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