/*
 * @(#)ForwardException.java	1.27 03/12/19
 *
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.corba.se.spi.protocol;

import org.omg.CORBA.BAD_PARAM ;

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

import com.sun.corba.se.spi.ior.IOR ;

import com.sun.corba.se.spi.orb.ORB ;

/**
 * Thrown to signal an OBJECT_FORWARD or LOCATION_FORWARD
 */
public class ForwardException extends RuntimeException {
    private ORB orb ;
    private org.omg.CORBA.Object obj;
    private IOR ior ;

    public ForwardException( ORB orb, IOR ior ) {
        super();

	this.orb = orb ;
	this.obj = null ;
	this.ior = ior ;
    }

    public ForwardException( ORB orb, org.omg.CORBA.Object obj) {
        super();

	// This check is done early so that no attempt
	// may be made to do a location forward to a local
	// object.  Doing this lazily would allow 
	// forwarding to locals in some restricted cases.
	if (obj instanceof org.omg.CORBA.LocalObject)
	    throw new BAD_PARAM() ;

	this.orb = orb ;
	this.obj = obj ;
	this.ior = null ;
    }

    public synchronized org.omg.CORBA.Object getObject()
    {
	if (obj == null) {
	    obj = ORBUtility.makeObjectReference( ior ) ;
	}

	return obj ;
    }

    public synchronized IOR getIOR() 
    {
	if (ior == null) {
	    ior = ORBUtility.getIOR( obj ) ;
	}

	return ior ;
    }
}