FallbackObjectCopierImpl.java

/*
 * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code 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 Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.corba.se.impl.copyobject ;

import com.sun.corba.se.spi.copyobject.ObjectCopier ;
import com.sun.corba.se.spi.copyobject.ReflectiveCopyException ;

/** Trys a first ObjectCopier.  If the first throws a ReflectiveCopyException,
 * falls back and tries a second ObjectCopier.
 */
public class FallbackObjectCopierImpl implements ObjectCopier
{
    private ObjectCopier first ;
    private ObjectCopier second ;

    public FallbackObjectCopierImpl( ObjectCopier first,
        ObjectCopier second )
    {
        this.first = first ;
        this.second = second ;
    }

    public Object copy( Object src ) throws ReflectiveCopyException
    {
        try {
            return first.copy( src ) ;
        } catch (ReflectiveCopyException rce ) {
            // XXX log this fallback at a low level
            return second.copy( src ) ;
        }
    }
}