Package org.osgi.service.coordinator

Class CoordinationPermission

java.lang.Object
java.security.Permission
java.security.BasicPermission
org.osgi.service.coordinator.CoordinationPermission
All Implemented Interfaces:
Serializable, Guard
public final class CoordinationPermission extends BasicPermission
A bundle's authority to create or use a Coordination.

CoordinationPermission has three actions: initiate, participate and admin.

See Also:
"ThreadSafe"

  • Field Details

  • Constructor Details

    • CoordinationPermission

      public CoordinationPermission(String filter, String actions)
      Creates a new granted CoordinationPermission object. This constructor must only be used to create a permission that is going to be checked.

      Examples: 

       (coordination.name=com.acme.*)
 (&(signer=\*,o=ACME,c=US)(coordination.name=com.acme.*))
 (signer=\*,o=ACME,c=US)

      When a signer key is used within the filter expression the signer value must escape the special filter chars ('*', '(', ')').

      The name is specified as a filter expression. The filter gives access to the following attributes:

      • signer - A Distinguished Name chain used to sign the exporting bundle. Wildcards in a DN are not matched according to the filter string rules, but according to the rules defined for a DN chain.
      • location - The location of the exporting bundle.
      • id - The bundle ID of the exporting bundle.
      • name - The symbolic name of the exporting bundle.
      • coordination.name - The name of the requested coordination.
      Filter attribute names are processed in a case sensitive manner.
      Parameters:
      filter - A filter expression. Filter attribute names are processed in a case sensitive manner. A special value of "*" can be used to match all coordinations.
      actions - admin, initiate or participate (canonical order).
      Throws:
      IllegalArgumentException - If the filter has an invalid syntax.

    • CoordinationPermission

      public CoordinationPermission(String coordinationName, Bundle coordinationBundle, String actions)
      Creates a new requested CoordinationPermission object to be used by the code that must perform checkPermission. CoordinationPermission objects created with this constructor cannot be added to an CoordinationPermission permission collection.
      Parameters:
      coordinationName - The name of the requested Coordination.
      coordinationBundle - The bundle which created the requested Coordination.
      actions - admin, initiate or participate (canonical order).

  • Method Details

    • implies

      public boolean implies(Permission p)
      Determines if the specified permission is implied by this object.

      This method checks that the filter of the target is implied by the coordination name of this object. The list of CoordinationPermission actions must either match or allow for the list of the target object to imply the target CoordinationPermission action.

      Overrides:
      implies in class BasicPermission
      Parameters:
      p - The requested permission.
      Returns:
      true if the specified permission is implied by this object; false otherwise.

    • getActions

      public String getActions()
      Returns the canonical string representation of the CoordinationPermission actions.

      Always returns present CoordinationPermission actions in the following order: admin, initiate, participate.

      Overrides:
      getActions in class BasicPermission
      Returns:
      Canonical string representation of the CoordinationPermission actions.

    • newPermissionCollection

      public PermissionCollection newPermissionCollection()
      Returns a new PermissionCollection object suitable for storing CoordinationPermission objects.
      Overrides:
      newPermissionCollection in class BasicPermission
      Returns:
      A new PermissionCollection object.

    • equals

      public boolean equals(Object obj)
      Determines the equality of two CoordinationPermission objects. This method checks that specified permission has the same name and CoordinationPermission actions as this CoordinationPermission object.
      Overrides:
      equals in class BasicPermission
      Parameters:
      obj - The object to test for equality with this CoordinationPermission object.
      Returns:
      true if obj is a CoordinationPermission, and has the same name and actions as this CoordinationPermission object; false otherwise.

    • hashCode

      public int hashCode()
      Returns the hash code value for this object.
      Overrides:
      hashCode in class BasicPermission
      Returns:
      A hash code value for this object.