com.tencent.kona.sun.security.action

Class GetBooleanAction

java.lang.Object

com.tencent.kona.sun.security.action.GetBooleanAction

All Implemented Interfaces:

java.security.PrivilegedAction<java.lang.Boolean>

public class GetBooleanAction
extends java.lang.Object
implements java.security.PrivilegedAction<java.lang.Boolean>

A convenience class for retrieving the boolean 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 boolean value of the system property named "prop" as a privileged action:

 boolean b = java.security.AccessController.doPrivileged
              (new GetBooleanAction("prop")).booleanValue();
 

Since:

1.2

See Also:

PrivilegedAction, AccessController

Constructor Summary

Constructors

Constructor and Description
GetBooleanAction(java.lang.String theProp) Constructor that takes the name of the system property whose boolean value needs to be determined.

Method Summary

Modifier and Type	Method and Description
static boolean	privilegedGetProperty(java.lang.String theProp) Convenience method to get a property without going through doPrivileged if no security manager is present.
java.lang.Boolean	run() Determines the boolean value of the system property whose name was specified in the constructor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GetBooleanAction

public GetBooleanAction(java.lang.String theProp)

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

Parameters:

theProp - the name of the system property.

Method Detail

run

public java.lang.Boolean run()

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

Specified by:

run in interface java.security.PrivilegedAction<java.lang.Boolean>

Returns:

the Boolean value of the system property.

privilegedGetProperty

public static boolean privilegedGetProperty(java.lang.String theProp)

Convenience method to get a property without going through doPrivileged if no security manager is present. This is unsafe for inclusion in a public API but allowable here since this class is now encapsulated. Note that this method performs a privileged action using caller-provided inputs. The caller of this method should take care to ensure that the inputs are not tainted and the returned property is not made accessible to untrusted code if it contains sensitive information.

Parameters:

theProp - the name of the system property.