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1
22 package org.jboss.mx.util;
23
24 import java.security.AccessController  ;
25 import java.security.PrivilegedAction ;
26
27
35 public class PropertyAccess
36 {
37 static class PropertyReadAction implements PrivilegedAction
38 {
39 private String name;
40 private String defaultValue;
41 PropertyReadAction(String name, String defaultValue)
42 {
43 this.name = name;
44 this.defaultValue = defaultValue;
45 }
46 public Object run()
47 {
48 return System.getProperty(name, defaultValue);
49 }
50 }
51 static class PropertyWriteAction implements PrivilegedAction
52 {
53 private String name;
54 private String value;
55 PropertyWriteAction(String name, String value)
56 {
57 this.name = name;
58 this.value = value;
59 }
60 public Object run()
61 {
62 return System.setProperty(name, value);
63 }
64 }
65
66 public static String getProperty(String name)
67 {
68 return getProperty(name, null);
69 }
70
71 public static String getProperty(String name, String defaultValue)
72 {
73 PrivilegedAction action = new PropertyReadAction(name, defaultValue);
74 String property = (String ) AccessController.doPrivileged(action);
75 return property;
76 }
77
78 public static String setProperty(String name, String value)
79 {
80 PrivilegedAction action = new PropertyWriteAction(name, value);
81 String property = (String ) AccessController.doPrivileged(action);
82 return property;
83 }
84
85 }
86 |
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