class OpsListener implements DOMRpcAvailabilityListener, DOMActionAvailabilityExtension.AvailabilityListener {

    @Override
    public void onRpcUnavailable(final Collection<DOMRpcIdentifier> rpcs) {
        checkArgument(rpcs != null, "Input Collection of DOMRpcIdentifier can not be null.");

        LOG.debug("Removing registration for [{}]", rpcs);
        rpcRegistry.tell(new RemoveRoutes(rpcs), ActorRef.noSender());
    }

      OpsListener(final ActorRef rpcRegistry, final ActorRef actionRegistry);

}