1 /*
   2  * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.corba.se.spi.copyobject ;
  27 
  28 import com.sun.corba.se.spi.orb.ORB ;
  29 
  30 import com.sun.corba.se.impl.copyobject.ReferenceObjectCopierImpl ;
  31 import com.sun.corba.se.impl.copyobject.FallbackObjectCopierImpl ;
  32 import com.sun.corba.se.impl.copyobject.ORBStreamObjectCopierImpl ;
  33 import com.sun.corba.se.impl.copyobject.JavaStreamObjectCopierImpl ;
  34 
  35 public abstract class CopyobjectDefaults
  36 {
  37     private CopyobjectDefaults() { }
  38 
  39     /** Obtain the ORB stream copier factory.  Note that this version behaves differently
  40      * than the others: each ObjectCopier produced by the factory only preserves aliasing
  41      * within a single call to copy.  The others copiers all preserve aliasing across
  42      * all calls to copy (on the same ObjectCopier instance).
  43      */
  44     public static ObjectCopierFactory makeORBStreamObjectCopierFactory( final ORB orb )
  45     {
  46         return new ObjectCopierFactory() {
  47             public ObjectCopier make( )
  48             {
  49                 return new ORBStreamObjectCopierImpl( orb ) ;
  50             }
  51         } ;
  52     }
  53 
  54     public static ObjectCopierFactory makeJavaStreamObjectCopierFactory( final ORB orb )
  55     {
  56         return new ObjectCopierFactory() {
  57             public ObjectCopier make( )
  58             {
  59                 return new JavaStreamObjectCopierImpl( orb ) ;
  60             }
  61         } ;
  62     }
  63 
  64     private static final ObjectCopier referenceObjectCopier = new ReferenceObjectCopierImpl() ;
  65 
  66     private static ObjectCopierFactory referenceObjectCopierFactory =
  67         new ObjectCopierFactory() {
  68             public ObjectCopier make()
  69             {
  70                 return referenceObjectCopier ;
  71             }
  72         } ;
  73 
  74     /** Obtain the reference object "copier".  This does no copies: it just
  75      * returns whatever is passed to it.
  76      */
  77     public static ObjectCopierFactory getReferenceObjectCopierFactory()
  78     {
  79         return referenceObjectCopierFactory ;
  80     }
  81 
  82     /** Create a fallback copier factory from the two ObjectCopierFactory
  83      * arguments.  This copier makes an ObjectCopierFactory that creates
  84      * instances of a fallback copier that first tries an ObjectCopier
  85      * created from f1, then tries one created from f2, if the first
  86      * throws a ReflectiveCopyException.
  87      */
  88     public static ObjectCopierFactory makeFallbackObjectCopierFactory(
  89         final ObjectCopierFactory f1, final ObjectCopierFactory f2 )
  90     {
  91         return new ObjectCopierFactory() {
  92             public ObjectCopier make()
  93             {
  94                 ObjectCopier c1 = f1.make() ;
  95                 ObjectCopier c2 = f2.make() ;
  96                 return new FallbackObjectCopierImpl( c1, c2 ) ;
  97             }
  98         } ;
  99     }
 100 }