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1
7
8 package javax.xml.validation;
9
10 import java.io.IOException  ;
11 import java.net.URL ;
12 import java.security.*;
13 import java.net.*;
14 import java.io.*;
15 import java.util.*;
16
17
24 class SecuritySupport {
25
26
27 ClassLoader getContextClassLoader() {
28 return (ClassLoader )
29 AccessController.doPrivileged(new PrivilegedAction() {
30 public Object run() {
31 ClassLoader cl = null;
32 try {
33 cl = Thread.currentThread().getContextClassLoader();
34 } catch (SecurityException ex) { }
35 return cl;
36 }
37 });
38 }
39
40 String getSystemProperty(final String propName) {
41 return (String )
42 AccessController.doPrivileged(new PrivilegedAction() {
43 public Object run() {
44 return System.getProperty(propName);
45 }
46 });
47 }
48
49 FileInputStream getFileInputStream(final File file)
50 throws FileNotFoundException
51 {
52 try {
53 return (FileInputStream)
54 AccessController.doPrivileged(new PrivilegedExceptionAction() {
55 public Object run() throws FileNotFoundException {
56 return new FileInputStream(file);
57 }
58 });
59 } catch (PrivilegedActionException e) {
60 throw (FileNotFoundException)e.getException();
61 }
62 }
63
64 InputStream getURLInputStream(final URL url)
65 throws IOException
66 {
67 try {
68 return (InputStream)
69 AccessController.doPrivileged(new PrivilegedExceptionAction() {
70 public Object run() throws IOException {
71 return url.openStream();
72 }
73 });
74 } catch (PrivilegedActionException e) {
75 throw (IOException )e.getException();
76 }
77 }
78
79 URL getResourceAsURL(final ClassLoader cl,
80 final String name)
81 {
82 return (URL )
83 AccessController.doPrivileged(new PrivilegedAction() {
84 public Object run() {
85 URL url;
86 if (cl == null) {
87 url = ClassLoader.getSystemResource(name);
88 } else {
89 url = cl.getResource(name);
90 }
91 return url;
92 }
93 });
94 }
95
96 Enumeration getResources(final ClassLoader cl,
97 final String name) throws IOException
98 {
99 try{
100 return (Enumeration)
101 AccessController.doPrivileged(new PrivilegedExceptionAction() {
102 public Object run() throws IOException {
103 Enumeration enumeration;
104 if (cl == null) {
105 enumeration = ClassLoader.getSystemResources(name);
106 } else {
107 enumeration = cl.getResources(name);
108 }
109 return enumeration;
110 }
111 });
112 }catch(PrivilegedActionException e){
113 throw (IOException )e.getException();
114 }
115 }
116
117 InputStream getResourceAsStream(final ClassLoader cl,
118 final String name)
119 {
120 return (InputStream)
121 AccessController.doPrivileged(new PrivilegedAction() {
122 public Object run() {
123 InputStream ris;
124 if (cl == null) {
125 ris = ClassLoader.getSystemResourceAsStream(name);
126 } else {
127 ris = cl.getResourceAsStream(name);
128 }
129 return ris;
130 }
131 });
132 }
133
134 boolean doesFileExist(final File f) {
135 return ((Boolean )
136 AccessController.doPrivileged(new PrivilegedAction() {
137 public Object run() {
138 return new Boolean (f.exists());
139 }
140 })).booleanValue();
141 }
142
143 }
144 |
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