J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2003 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.management.loading; |
| 27 | |
| 28 | |
| 29 | // java import |
| 30 | |
| 31 | import java.io.*; |
| 32 | import java.lang.reflect.Array; |
| 33 | |
| 34 | |
| 35 | /** |
| 36 | * This subclass of ObjectInputStream delegates loading of classes to |
| 37 | * an existing MLetClassLoader. |
| 38 | * |
| 39 | * @since 1.5 |
| 40 | */ |
| 41 | class MLetObjectInputStream extends ObjectInputStream { |
| 42 | |
| 43 | private MLet loader; |
| 44 | |
| 45 | /** |
| 46 | * Loader must be non-null; |
| 47 | */ |
| 48 | public MLetObjectInputStream(InputStream in, MLet loader) |
| 49 | throws IOException, StreamCorruptedException { |
| 50 | |
| 51 | super(in); |
| 52 | if (loader == null) { |
| 53 | throw new IllegalArgumentException("Illegal null argument to MLetObjectInputStream"); |
| 54 | } |
| 55 | this.loader = loader; |
| 56 | } |
| 57 | |
| 58 | private Class primitiveType(char c) { |
| 59 | switch(c) { |
| 60 | case 66: /* 'B' */ |
| 61 | return Byte.TYPE; |
| 62 | |
| 63 | case 67: /* 'C' */ |
| 64 | return Character.TYPE; |
| 65 | |
| 66 | case 68: /* 'D' */ |
| 67 | return Double.TYPE; |
| 68 | |
| 69 | case 70: /* 'F' */ |
| 70 | return Float.TYPE; |
| 71 | |
| 72 | case 73: /* 'I' */ |
| 73 | return Integer.TYPE; |
| 74 | |
| 75 | case 74: /* 'J' */ |
| 76 | return Long.TYPE; |
| 77 | |
| 78 | case 83: /* 'S' */ |
| 79 | return Short.TYPE; |
| 80 | |
| 81 | case 90: /* 'Z' */ |
| 82 | return Boolean.TYPE; |
| 83 | } |
| 84 | return null; |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Use the given ClassLoader rather than using the system class |
| 89 | */ |
| 90 | protected Class resolveClass(ObjectStreamClass objectstreamclass) |
| 91 | throws IOException, ClassNotFoundException { |
| 92 | |
| 93 | String s = objectstreamclass.getName(); |
| 94 | if (s.startsWith("[")) { |
| 95 | int i; |
| 96 | for (i = 1; s.charAt(i) == '['; i++); |
| 97 | Class class1; |
| 98 | if (s.charAt(i) == 'L') { |
| 99 | class1 = loader.loadClass(s.substring(i + 1, s.length() - 1)); |
| 100 | } else { |
| 101 | if (s.length() != i + 1) |
| 102 | throw new ClassNotFoundException(s); |
| 103 | class1 = primitiveType(s.charAt(i)); |
| 104 | } |
| 105 | int ai[] = new int[i]; |
| 106 | for (int j = 0; j < i; j++) |
| 107 | ai[j] = 0; |
| 108 | |
| 109 | return Array.newInstance(class1, ai).getClass(); |
| 110 | } else { |
| 111 | return loader.loadClass(s); |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Returns the ClassLoader being used |
| 117 | */ |
| 118 | public ClassLoader getClassLoader() { |
| 119 | return loader; |
| 120 | } |
| 121 | } |