Class DmtPrincipalPermission

All Implemented Interfaces:
Serializable, Guard

public class DmtPrincipalPermission extends Permission
Indicates the callers authority to create DMT sessions on behalf of a remote management server. Only protocol adapters communicating with management servers should be granted this permission.

DmtPrincipalPermission has a target string which controls the name of the principal on whose behalf the protocol adapter can act. A wildcard is allowed at the end of the target string, to allow using any principal name with the given prefix. The "*" target means the adapter can create a session in the name of any principal.

See Also:
  • Constructor Details

    • DmtPrincipalPermission

      public DmtPrincipalPermission(String target)
      Creates a new DmtPrincipalPermission object with its name set to the target string. Name must be non-null and non-empty.
      target - the name of the principal, can end with * to match any principal with the given prefix
      NullPointerException - if name is null
      IllegalArgumentException - if name is empty
    • DmtPrincipalPermission

      public DmtPrincipalPermission(String target, String actions)
      Creates a new DmtPrincipalPermission 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.
      target - the name of the principal, can end with * to match any principal with the given prefix
      actions - no actions defined, must be "*" for forward compatibility
      NullPointerException - if name or actions is null
      IllegalArgumentException - if name is empty or actions is not "*"
  • Method Details

    • equals

      public boolean equals(Object obj)
      Checks whether the given object is equal to this DmtPrincipalPermission instance. Two DmtPrincipalPermission instances are equal if they have the same target string.
      Specified by:
      equals in class Permission
      obj - the object to compare to this DmtPrincipalPermission instance
      true if the parameter represents the same permissions as this instance
    • getActions

      public String getActions()
      Returns the action list (always * in the current version).
      Specified by:
      getActions in class Permission
      the action string "*"
    • hashCode

      public int hashCode()
      Returns the hash code for this permission object. If two DmtPrincipalPermission objects are equal according to the equals(Object) method, then calling this method on each of the two DmtPrincipalPermission objects must produce the same integer result.
      Specified by:
      hashCode in class Permission
      hash code for this permission object
    • implies

      public boolean implies(Permission p)
      Checks if this DmtPrincipalPermission object implies the specified permission. Another DmtPrincipalPermission 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 Permission
      p - the permission to check for implication
      true if this DmtPrincipalPermission instance implies the specified permission
    • newPermissionCollection

      public PermissionCollection newPermissionCollection()
      Returns a new PermissionCollection object for storing DmtPrincipalPermission objects.
      newPermissionCollection in class Permission
      the new PermissionCollection