the refresh method called when on demand refresh service receive a message. then call the parent actor sniff
        method if message is compliant on what is attended
        :param props: the message properties
        :param body: the message body
        :return:

def refresh(self, props, body):
        """
        the refresh method called when on demand refresh service receive a message. then call the parent actor sniff
        method if message is compliant on what is attended
        :param props: the message properties
        :param body: the message body
        :return:
        """
        LOGGER.debug("InjectorCachedComponent.refresh")
        operation = props['OPERATION']
        if operation == "REFRESH":
            if self.parent_actor_ref is not None:
                parent_actor = self.parent_actor_ref.proxy()
                parent_actor.sniff().get()
        else:
            LOGGER.error("InjectorCachedComponent.refresh - Unsupported operation " + str(operation))