//
// SwitchRMI  Framework
// Copyright (c) 2000-2002 by Michael J. Henderson & Associates.
//
// Michael Henderson
// http://switchrmi.sf.net
// mailto:mikehenderson@dunelm.org.uk
//
// This library is free software.
//
// You may redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License as published by the Free Software Foundation.
//
// Version 2.1 of the license should be included with this distribution in
// the file LICENSE, as well as License.html. If the license is not
// included with this distribution, you may find a copy at the FSF web
// site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
// Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied waranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// $Id: RmiProxyObjectFactory.java,v 1.1 2002/11/11 22:19:48 mikehenderson Exp $
//
package com.mjh.switchrmi.jndi;

import com.mjh.switchrmi.*;

import java.lang.reflect.*;

import java.net.*;

import java.util.*;

import javax.naming.*;
import javax.naming.spi.*;

import org.apache.log4j.Logger;

public class RmiProxyObjectFactory
    extends RmiObjectFactoryBase
    implements ObjectFactory
{
    private static final Logger log = 
            Logger.getLogger(RmiProxyObjectFactory.class.getName());
    private String url;
    private String protocol;

    public RmiProxyObjectFactory()
    {
    }

    public Object getObjectInstance(Object obj, Name name, Context ctx, 
                                    Hashtable env)
                             throws Exception
    {
        Reference ref = (Reference) obj;

        ctx = ((JndiContextImpl) ctx).getRootContext();

        URL[] codebase = getCodebase(name, env);

        if (log.isDebugEnabled())
        {
            log.debug("codebase = " + codebase);
        }

        ClassLoader loader = getClass().getClassLoader();

        if (codebase != null)
        {
            loader = new URLClassLoader(codebase, loader);
        }

        //load interfaces rom loader
        Class[] interfaces = getInterfaces(name, env, loader);
        Class clazz = loader.loadClass(getClassName(name, env));
        Object target = clazz.newInstance();
        RmiClientInvocationHandler handler = 
                new RmiClientInvocationHandler(
                        (String) getTypeInfoValue("url", name, env), interfaces, 
                        (String) getTypeInfoValue("protocol", name, env), ctx);

        return Proxy.newProxyInstance(getClass().getClassLoader(), interfaces, 
                                      handler);
    }
}