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/* *##% 
 * ToPIA :: SOA
 * Copyright (C) 2004 - 2009 CodeLutin
 *
 * This program 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 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * ##%*/

package org.nuiton.topia.service.clients;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URI;
import java.rmi.Remote;
import java.rmi.registry.LocateRegistry;
import java.util.Arrays;

import org.apache.commons.beanutils.MethodUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuiton.topia.TopiaContext;
import org.nuiton.topia.TopiaException;
import org.nuiton.topia.service.TopiaApplicationService;
import org.nuiton.topia.service.TopiaProxy;

/**
 * RMIProxy.java
 * 
 * @author chatellier
 * @version $Revision: 1715 $
 * 
 * Last update : $Date: 2009-12-15 01:26:16 +0100 (mar. 15 déc. 2009) $ By : $Author: tchemit $
 */
public class RMIProxy implements TopiaProxy {

    /** Logger (common logging) */
    private static final Log logger = LogFactory.getLog(RMIProxy.class);

    /** location du service */
    protected String serviceLocation = null;

    /** La classe geree par le proxy */
    protected Class clazz;

    /**
     * Constructeur
     * 
     */
    public RMIProxy() {

    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.reflect.InvocationHandler#invoke(java.lang.Object,
     *      java.lang.reflect.Method, java.lang.Object[])
     */
    public Object invoke(Object proxy, Method method, Object[] args)
            throws Throwable {

        Object result = null;

        logger.debug("Invoke : " + clazz.getName() + "." + method.getName()
                + "(" + Arrays.toString(args) + ")");

        Remote rObject = LocateRegistry.getRegistry().lookup(clazz.getName());

        logger.debug("Interfaces : "
                + Arrays.toString(rObject.getClass().getInterfaces()));
        logger.debug("Lookup for rmi service : rmi://" + this.serviceLocation
                + "/" + clazz.getName() + " is " + rObject);

        logger.warn(Arrays.toString(rObject.getClass().getInterfaces()));

        try {
            // l'objet Remote est en fait du type de la classe
            // Remote generee sur le serveur
            // on ne l'a pas ici
            // invocation via MethodUtils de commons beanutils
            result = MethodUtils.invokeMethod(rObject, method.getName(), args);
        } catch (IllegalAccessException e) {
            new TopiaException("Illegal Access to method (" + method.getName()
                    + ") in interface " + clazz.getName());
        } catch (InvocationTargetException e) {
            new TopiaException("Can't call method (" + method.getName()
                    + ") in interface " + clazz.getName());
        }

        return result;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.nuiton.topia.service.clients.TopiaProxy#setURI(java.net.URI)
     */
    public void setURI(URI uri) {
        // serviceLocation = uri.getRawSchemeSpecificPart();
        serviceLocation = uri.getAuthority(); // = host + port si specifie
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.nuiton.topia.service.clients.TopiaProxy#setClass(java.lang.Class)
     */
    public void setClass(Class clazz) {
        this.clazz = clazz;
    }

    public void destroy() {
    }

    public void init(TopiaContext context) {
    }

}