Find Usages Diff Raw Download HTML Widget
Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions 
1
 /*
2
  * Copyright 1998-2006 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
 */
26
package sun.security.action;

A convenience class for retrieving the string value of a system property as a privileged action.

An instance of this class can be used as the argument of AccessController.doPrivileged.

The following code retrieves the value of the system property named "prop" as a privileged action: 

 String s = java.security.AccessController.doPrivileged
                      (new GetPropertyAction("prop"));

Author(s):
Roland Schemers
Since:
1.2
See also:
java.security.PrivilegedAction
java.security.AccessController
49
public class GetPropertyAction
50
        implements java.security.PrivilegedAction<String> {
51
    private String theProp;
52
    private String defaultVal;

    
Constructor that takes the name of the system property whose string value needs to be determined.

Parameters:
theProp the name of the system property.
60
    public GetPropertyAction(String theProp) {
61
        this. = theProp;
62
    }

    
Constructor that takes the name of the system property and the default value of that property.

Parameters:
theProp the name of the system property.
defaulVal the default value.
71
    public GetPropertyAction(String theProp, String defaultVal) {
72
        this. = theProp;
73
        this. = defaultVal;
74
    }

    
Determines the string value of the system property whose name was specified in the constructor.

Returns:
the string value of the system property, or the default value if there is no property with that key.
83
    public String run() {
84
        String value = System.getProperty();
85
        return (value == null) ?  : value;
86
    }
New to GrepCode? Check out our FAQ X