- @SuppressWarnings("unchecked")
- @Override
- public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- ListenerRegistration<L> registerChangeListener(
- final YangInstanceIdentifier path, L listener,
- AsyncDataBroker.DataChangeScope scope) {
-
- Preconditions.checkNotNull(path, "path should not be null");
- Preconditions.checkNotNull(listener, "listener should not be null");
- if(LOG.isDebugEnabled()) {
- LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
- }
- ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
- DataChangeListener.props(listener ));
-
- String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
-
- Future future = actorContext.executeLocalShardOperationAsync(shardName,
- new RegisterChangeListener(path, dataChangeListenerActor.path(), scope),
- new Timeout(actorContext.getOperationDuration().$times(
- REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR)));
-
- if (future != null) {
- final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
- new DataChangeListenerRegistrationProxy(listener, dataChangeListenerActor);
-
- future.onComplete(new OnComplete(){
-
- @Override public void onComplete(Throwable failure, Object result)
- throws Throwable {
- if(failure != null){
- LOG.error("Failed to register listener at path " + path.toString(), failure);
- return;
- }
- RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
- listenerRegistrationProxy.setListenerRegistrationActor(actorContext
- .actorSelection(reply.getListenerRegistrationPath()));
- }
- }, actorContext.getActorSystem().dispatcher());
- return listenerRegistrationProxy;
- }
- if(LOG.isDebugEnabled()) {
- LOG.debug(
- "No local shard for shardName {} was found so returning a noop registration",
- shardName);
- }
- return new NoOpDataChangeListenerRegistration(listener);
- }