2
|
1 |
/*
|
|
2 |
* Copyright 2002-2007 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 sun.misc;
|
|
27 |
|
|
28 |
import java.util.jar.JarFile;
|
|
29 |
import java.io.Console;
|
|
30 |
import java.io.File;
|
|
31 |
import java.io.FileDescriptor;
|
|
32 |
|
|
33 |
/** A repository of "shared secrets", which are a mechanism for
|
|
34 |
calling implementation-private methods in another package without
|
|
35 |
using reflection. A package-private class implements a public
|
|
36 |
interface and provides the ability to call package-private methods
|
|
37 |
within that package; the object implementing that interface is
|
|
38 |
provided through a third package to which access is restricted.
|
|
39 |
This framework avoids the primary disadvantage of using reflection
|
|
40 |
for this purpose, namely the loss of compile-time checking. */
|
|
41 |
|
|
42 |
public class SharedSecrets {
|
|
43 |
private static final Unsafe unsafe = Unsafe.getUnsafe();
|
|
44 |
private static JavaUtilJarAccess javaUtilJarAccess;
|
|
45 |
private static JavaLangAccess javaLangAccess;
|
|
46 |
private static JavaIOAccess javaIOAccess;
|
|
47 |
private static JavaIODeleteOnExitAccess javaIODeleteOnExitAccess;
|
|
48 |
private static JavaNetAccess javaNetAccess;
|
|
49 |
private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
|
|
50 |
|
|
51 |
public static JavaUtilJarAccess javaUtilJarAccess() {
|
|
52 |
if (javaUtilJarAccess == null) {
|
|
53 |
// Ensure JarFile is initialized; we know that that class
|
|
54 |
// provides the shared secret
|
|
55 |
unsafe.ensureClassInitialized(JarFile.class);
|
|
56 |
}
|
|
57 |
return javaUtilJarAccess;
|
|
58 |
}
|
|
59 |
|
|
60 |
public static void setJavaUtilJarAccess(JavaUtilJarAccess access) {
|
|
61 |
javaUtilJarAccess = access;
|
|
62 |
}
|
|
63 |
|
|
64 |
public static void setJavaLangAccess(JavaLangAccess jla) {
|
|
65 |
javaLangAccess = jla;
|
|
66 |
}
|
|
67 |
|
|
68 |
public static JavaLangAccess getJavaLangAccess() {
|
|
69 |
return javaLangAccess;
|
|
70 |
}
|
|
71 |
|
|
72 |
public static void setJavaNetAccess(JavaNetAccess jna) {
|
|
73 |
javaNetAccess = jna;
|
|
74 |
}
|
|
75 |
|
|
76 |
public static JavaNetAccess getJavaNetAccess() {
|
|
77 |
return javaNetAccess;
|
|
78 |
}
|
|
79 |
|
|
80 |
public static void setJavaIOAccess(JavaIOAccess jia) {
|
|
81 |
javaIOAccess = jia;
|
|
82 |
}
|
|
83 |
|
|
84 |
public static JavaIOAccess getJavaIOAccess() {
|
|
85 |
if (javaIOAccess == null) {
|
|
86 |
unsafe.ensureClassInitialized(Console.class);
|
|
87 |
}
|
|
88 |
return javaIOAccess;
|
|
89 |
}
|
|
90 |
|
|
91 |
public static void setJavaIODeleteOnExitAccess(JavaIODeleteOnExitAccess jida) {
|
|
92 |
javaIODeleteOnExitAccess = jida;
|
|
93 |
}
|
|
94 |
|
|
95 |
public static JavaIODeleteOnExitAccess getJavaIODeleteOnExitAccess() {
|
|
96 |
if (javaIODeleteOnExitAccess == null) {
|
|
97 |
unsafe.ensureClassInitialized(File.class);
|
|
98 |
}
|
|
99 |
return javaIODeleteOnExitAccess;
|
|
100 |
}
|
|
101 |
|
|
102 |
public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) {
|
|
103 |
javaIOFileDescriptorAccess = jiofda;
|
|
104 |
}
|
|
105 |
|
|
106 |
public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() {
|
|
107 |
if (javaIOFileDescriptorAccess == null)
|
|
108 |
unsafe.ensureClassInitialized(FileDescriptor.class);
|
|
109 |
|
|
110 |
return javaIOFileDescriptorAccess;
|
|
111 |
}
|
|
112 |
|
|
113 |
}
|