org/objectweb/proactive/ext/security/SecurityOutputStream.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.ext.security;

import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.rmi.Remote;
import java.rmi.server.RemoteObject;
import java.rmi.server.RemoteStub;


public class SecurityOutputStream extends ObjectOutputStream {

    public SecurityOutputStream(OutputStream out) throws IOException {
        super(out);
        System.out.println(
            "-*-**-*--*-*-*-**--**-*--*-**- instanciating securtityoutpoutstream");
        java.security.AccessController.doPrivileged(new java.security.PrivilegedAction<Object>() {
                public Object run() {
                    enableReplaceObject(true);
                    return null;
                }
            });
    }

    public SecurityOutputStream() throws IOException, SecurityException {
        super();
    }

    protected Object replaceObject(Object obj) throws IOException {
        System.out.println(
            " */*/*/*/*/*/*/* /*/*/**//**/ Inside replaceObject /*/**/*//*/**//*/*/**//*/*");
        if ((obj instanceof Remote) && !(obj instanceof RemoteStub)) {
            System.out.println(
                " */*/*/*/*/*/*/* /*/*/**//**/ found a Remote object " + obj +
                " /*/**/*//*/**//*/*/**//*/*");
            Remote target = RemoteObject.toStub((Remote) obj);
            if (target != null) {
                return target;
            }
        }
        System.out.println(" */*/*/*/*/*/*/* /*/*/**//**/ Normal obj : " + obj +
            "/*/**/*//*/**//*/*/**//*/*");
        return obj;
    }
}

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