/*
 * @(#)Util.java	1.47 06/08/25
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 * US Government Users Restricted Rights - Use, duplication or
 * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

package javax.rmi.CORBA;

import java.rmi.RemoteException;

import org.omg.CORBA.ORB;
import org.omg.CORBA.INITIALIZE;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.Any;
import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.OutputStream;
import org.omg.CORBA.portable.ObjectImpl;

import javax.rmi.CORBA.Tie;
import java.rmi.Remote;
import java.io.File;
import java.io.FileInputStream;
import java.net.MalformedURLException ;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Properties;
import java.rmi.server.RMIClassLoader;

import com.sun.corba.se.impl.orbutil.GetPropertyAction;

/**
 * Provides utility methods that can be used by stubs and ties to
 * perform common operations.
 */
public class Util {

    // This can only be set at static initialization time (no sync necessary).
    private static javax.rmi.CORBA.UtilDelegate utilDelegate = null;
    private static final String UtilClassKey = "javax.rmi.CORBA.UtilClass";
    private static final String defaultUtilImplName = 
"com.sun.corba.se.impl.javax.rmi.CORBA.Util";

    static {
	utilDelegate = (javax.rmi.CORBA.UtilDelegate)
	    createDelegateIfSpecified(UtilClassKey, defaultUtilImplName);
    }

    private Util(){}

    /**
     * Maps a SystemException to a RemoteException.
     * @param ex the SystemException to map.
     * @return the mapped exception.
     */
    public static RemoteException mapSystemException(SystemException ex) {
	
	if (utilDelegate != null) {
	    return utilDelegate.mapSystemException(ex);
	}
	return null;
    }

    /**
     * Writes any java.lang.Object as a CORBA any.
     * @param out the stream in which to write the any.
     * @param obj the object to write as an any.
     */
    public static void writeAny(OutputStream out, Object obj) {

	if (utilDelegate != null) {
	    utilDelegate.writeAny(out, obj);
	}
    }

    /**
     * Reads a java.lang.Object as a CORBA any.
     * @param in the stream from which to read the any.
     * @return the object read from the stream.
     */
    public static Object readAny(InputStream in) {

	if (utilDelegate != null) {
	    return utilDelegate.readAny(in);
	}
	return null;
    }

    /**
     * Writes a java.lang.Object as a CORBA Object. If <code>obj</code> is
     * an exported RMI-IIOP server object, the tie is found
     * and wired to <code>obj</code>, then written to