Knopflerfish OSGi 5.2.0

org.osgi.service.dmt.security
Class AlertPermission

java.lang.Object
  extended by java.security.Permission
      extended by org.osgi.service.dmt.security.AlertPermission
All Implemented Interfaces:
java.io.Serializable, java.security.Guard

public class AlertPermission
extends java.security.Permission

Indicates the callers authority to send alerts to management servers, identified by their principal names.

AlertPermission has a target string which controls the principal names where alerts can be sent. A wildcard is allowed at the end of the target string, to allow sending alerts to any principal with a name matching the given prefix. The "*" target means that alerts can be sent to any destination.

Author:
$Id: c6a01d2c5e33287b1fd6bf40fedca908e9ddd072 $
See Also:
Serialized Form

Constructor Summary
AlertPermission(java.lang.String target)
          Creates a new AlertPermission object with its name set to the target string.
AlertPermission(java.lang.String target, java.lang.String actions)
          Creates a new AlertPermission object using the 'canonical' two argument constructor.
 
Method Summary
 boolean equals(java.lang.Object obj)
          Checks whether the given object is equal to this AlertPermission instance.
 java.lang.String getActions()
          Returns the action list (always * in the current version).
 int hashCode()
          Returns the hash code for this permission object.
 boolean implies(java.security.Permission p)
          Checks if this AlertPermission object implies the specified permission.
 java.security.PermissionCollection newPermissionCollection()
          Returns a new PermissionCollection object for storing AlertPermission objects.
 
Methods inherited from class java.security.Permission
checkGuard, getName, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

AlertPermission

public AlertPermission(java.lang.String target)
Creates a new AlertPermission object with its name set to the target string. Name must be non-null and non-empty.

Parameters:
target - the name of a principal, can end with * to match any principal identifier with the given prefix
Throws:
java.lang.NullPointerException - if name is null
java.lang.IllegalArgumentException - if name is empty

AlertPermission

public AlertPermission(java.lang.String target,
                       java.lang.String actions)
Creates a new AlertPermission object using the 'canonical' two argument constructor. In this version this class does not define any actions, the second argument of this constructor must be "*" so that this class can later be extended in a backward compatible way.

Parameters:
target - the name of the server, can end with * to match any server identifier with the given prefix
actions - no actions defined, must be "*" for forward compatibility
Throws:
java.lang.NullPointerException - if name or actions is null
java.lang.IllegalArgumentException - if name is empty or actions is not "*"
Method Detail

equals

public boolean equals(java.lang.Object obj)
Checks whether the given object is equal to this AlertPermission instance. Two AlertPermission instances are equal if they have the same target string.

Specified by:
equals in class java.security.Permission
Parameters:
obj - the object to compare to this AlertPermission instance
Returns:
true if the parameter represents the same permissions as this instance

getActions

public java.lang.String getActions()
Returns the action list (always * in the current version).

Specified by:
getActions in class java.security.Permission
Returns:
the action string "*"

hashCode

public int hashCode()
Returns the hash code for this permission object. If two AlertPermission objects are equal according to the equals(Object) method, then calling this method on each of the two AlertPermission objects must produce the same integer result.

Specified by:
hashCode in class java.security.Permission
Returns:
hash code for this permission object

implies

public boolean implies(java.security.Permission p)
Checks if this AlertPermission object implies the specified permission. Another AlertPermission instance is implied by this permission either if the target strings are identical, or if this target can be made identical to the other target by replacing a trailing "*" with any string.

Specified by:
implies in class java.security.Permission
Parameters:
p - the permission to check for implication
Returns:
true if this AlertPermission instance implies the specified permission

newPermissionCollection

public java.security.PermissionCollection newPermissionCollection()
Returns a new PermissionCollection object for storing AlertPermission objects.

Overrides:
newPermissionCollection in class java.security.Permission
Returns:
the new PermissionCollection

Knopflerfish OSGi 5.2.0