1 /*
2 * Copyright 2004-2006 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.xml.transform;
27
28 import java.security;
29 import java.net;
30 import java.io;
31 import java.util;
32
33 /**
34 * This class is duplicated for each JAXP subpackage so keep it in sync.
35 * It is package private and therefore is not exposed as part of the JAXP
36 * API.
37 *
38 * Security related methods that only work on J2SE 1.2 and newer.
39 */
40 class SecuritySupport {
41
42
43 ClassLoader getContextClassLoader() throws SecurityException{
44 return (ClassLoader)
45 AccessController.doPrivileged(new PrivilegedAction() {
46 public Object run() {
47 ClassLoader cl = null;
48 //try {
49 cl = Thread.currentThread().getContextClassLoader();
50 //} catch (SecurityException ex) { }
51 if (cl == null)
52 cl = ClassLoader.getSystemClassLoader();
53 return cl;
54 }
55 });
56 }
57
58 String getSystemProperty(final String propName) {
59 return (String)
60 AccessController.doPrivileged(new PrivilegedAction() {
61 public Object run() {
62 return System.getProperty(propName);
63 }
64 });
65 }
66
67 FileInputStream getFileInputStream(final File file)
68 throws FileNotFoundException
69 {
70 try {
71 return (FileInputStream)
72 AccessController.doPrivileged(new PrivilegedExceptionAction() {
73 public Object run() throws FileNotFoundException {
74 return new FileInputStream(file);
75 }
76 });
77 } catch (PrivilegedActionException e) {
78 throw (FileNotFoundException)e.getException();
79 }
80 }
81
82 InputStream getResourceAsStream(final ClassLoader cl,
83 final String name)
84 {
85 return (InputStream)
86 AccessController.doPrivileged(new PrivilegedAction() {
87 public Object run() {
88 InputStream ris;
89 if (cl == null) {
90 ris = ClassLoader.getSystemResourceAsStream(name);
91 } else {
92 ris = cl.getResourceAsStream(name);
93 }
94 return ris;
95 }
96 });
97 }
98
99 boolean doesFileExist(final File f) {
100 return ((Boolean)
101 AccessController.doPrivileged(new PrivilegedAction() {
102 public Object run() {
103 return new Boolean(f.exists());
104 }
105 })).booleanValue();
106 }
107
108 }
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