J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998 Sun Microsystems, Inc. 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. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | package extension; |
| 25 | |
| 26 | import java.util.Hashtable; |
| 27 | import java.io.*; |
| 28 | |
| 29 | public class ExtendedObjectInputStream extends ObjectInputStream { |
| 30 | |
| 31 | static private Hashtable renamedClassMap; |
| 32 | |
| 33 | public ExtendedObjectInputStream(InputStream si) |
| 34 | throws IOException, StreamCorruptedException |
| 35 | { |
| 36 | super(si); |
| 37 | } |
| 38 | |
| 39 | protected Class resolveClass(ObjectStreamClass v) |
| 40 | throws IOException, ClassNotFoundException |
| 41 | { |
| 42 | if (renamedClassMap != null) { |
| 43 | // System.out.println("resolveClass(" + v.getName() + ")"); |
| 44 | Class newClass = (Class)renamedClassMap.get(v.getName()); |
| 45 | if (newClass != null) { |
| 46 | v = ObjectStreamClass.lookup(newClass); |
| 47 | } |
| 48 | } |
| 49 | return super.resolveClass(v); |
| 50 | } |
| 51 | |
| 52 | static public void addRenamedClassName(String oldName, String newName) |
| 53 | throws ClassNotFoundException |
| 54 | { |
| 55 | Class cl = null; |
| 56 | |
| 57 | if (renamedClassMap == null) |
| 58 | renamedClassMap = new Hashtable(10); |
| 59 | if (newName.startsWith("[L")) { |
| 60 | // System.out.println("Array processing"); |
| 61 | Class componentType = |
| 62 | Class.forName(newName.substring(2)); |
| 63 | //System.out.println("ComponentType=" + componentType.getName()); |
| 64 | Object dummy = |
| 65 | java.lang.reflect.Array.newInstance(componentType, 3); |
| 66 | |
| 67 | cl = dummy.getClass(); |
| 68 | // System.out.println("Class=" + cl.getName()); |
| 69 | } |
| 70 | else |
| 71 | cl = Class.forName(newName); |
| 72 | //System.out.println("oldName=" + oldName + |
| 73 | // " newName=" + cl.getName()); |
| 74 | renamedClassMap.put(oldName, cl); |
| 75 | } |
| 76 | |
| 77 | } |