STATE_WAITING(0) : The action is waiting to be processed.STATE_PROCESSING(1) : The action is being processed.STATE_PROCESSED(2) : The action is processed.STATE_ERROR(3) : An error occured during the process or during the check of the action.STATE_UNKNOWN_HANDLER(4) : The handler is not registered or not found.STATE_HANDLER_ERROR(5) : The handler does not implements theHandlerInterface.