import akka.actor.ActorRef;
import akka.actor.ActorSelection;
import akka.actor.PoisonPill;
-import org.opendaylight.controller.cluster.datastore.messages.CloseDataChangeListenerRegistration;
+import akka.dispatch.OnComplete;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.cluster.datastore.exceptions.LocalShardNotFoundException;
+import org.opendaylight.controller.cluster.datastore.messages.CloseDataTreeNotificationListenerRegistration;
+import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
+import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply;
+import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
+import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataChangeListener;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import scala.concurrent.Future;
/**
* ListenerRegistrationProxy acts as a proxy for a ListenerRegistration that was done on a remote shard
* The ListenerRegistrationProxy talks to a remote ListenerRegistration actor.
* </p>
*/
+@SuppressWarnings("rawtypes")
public class DataChangeListenerRegistrationProxy implements ListenerRegistration {
+
+ private static final Logger LOG = LoggerFactory.getLogger(DataChangeListenerRegistrationProxy.class);
+
+ private final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener;
+ private final String shardName;
+ private final ActorContext actorContext;
+ private ActorRef dataChangeListenerActor;
private volatile ActorSelection listenerRegistrationActor;
- private final AsyncDataChangeListener listener;
- private final ActorRef dataChangeListenerActor;
private boolean closed = false;
public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- DataChangeListenerRegistrationProxy(
- ActorSelection listenerRegistrationActor,
- L listener, ActorRef dataChangeListenerActor) {
- this.listenerRegistrationActor = listenerRegistrationActor;
- this.listener = listener;
- this.dataChangeListenerActor = dataChangeListenerActor;
+ DataChangeListenerRegistrationProxy(String shardName, ActorContext actorContext, L listener) {
+ this.shardName = Preconditions.checkNotNull(shardName);
+ this.actorContext = Preconditions.checkNotNull(actorContext);
+ this.listener = Preconditions.checkNotNull(listener);
}
- public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- DataChangeListenerRegistrationProxy(
- L listener, ActorRef dataChangeListenerActor) {
- this(null, listener, dataChangeListenerActor);
+ @VisibleForTesting
+ ActorSelection getListenerRegistrationActor() {
+ return listenerRegistrationActor;
+ }
+
+ @VisibleForTesting
+ ActorRef getDataChangeListenerActor() {
+ return dataChangeListenerActor;
}
@Override
return listener;
}
- public void setListenerRegistrationActor(ActorSelection listenerRegistrationActor) {
+ private void setListenerRegistrationActor(ActorSelection listenerRegistrationActor) {
+ if (listenerRegistrationActor == null) {
+ return;
+ }
+
boolean sendCloseMessage = false;
- synchronized(this) {
- if(closed) {
+ synchronized (this) {
+ if (closed) {
sendCloseMessage = true;
} else {
this.listenerRegistrationActor = listenerRegistrationActor;
}
}
- if(sendCloseMessage) {
- listenerRegistrationActor.tell(new
- CloseDataChangeListenerRegistration().toSerializable(), null);
+
+ if (sendCloseMessage) {
+ listenerRegistrationActor.tell(CloseDataTreeNotificationListenerRegistration.getInstance(),
+ ActorRef.noSender());
}
+ }
- this.listenerRegistrationActor = listenerRegistrationActor;
+ public void init(final YangInstanceIdentifier path, final AsyncDataBroker.DataChangeScope scope) {
+
+ dataChangeListenerActor = actorContext.getActorSystem().actorOf(
+ DataChangeListener.props(listener, path).withDispatcher(actorContext.getNotificationDispatcherPath()));
+
+ Future<ActorRef> findFuture = actorContext.findLocalShardAsync(shardName);
+ findFuture.onComplete(new OnComplete<ActorRef>() {
+ @Override
+ public void onComplete(Throwable failure, ActorRef shard) {
+ if (failure instanceof LocalShardNotFoundException) {
+ LOG.debug("No local shard found for {} - DataChangeListener {} at path {} "
+ + "cannot be registered", shardName, listener, path);
+ } else if (failure != null) {
+ LOG.error("Failed to find local shard {} - DataChangeListener {} at path {} "
+ + "cannot be registered: {}", shardName, listener, path, failure);
+ } else {
+ doRegistration(shard, path, scope);
+ }
+ }
+ }, actorContext.getClientDispatcher());
}
- public ActorSelection getListenerRegistrationActor() {
- return listenerRegistrationActor;
+ private void doRegistration(ActorRef shard, final YangInstanceIdentifier path,
+ DataChangeScope scope) {
+
+ Future<Object> future = actorContext.executeOperationAsync(shard,
+ new RegisterChangeListener(path, dataChangeListenerActor, scope,
+ listener instanceof ClusteredDOMDataChangeListener),
+ actorContext.getDatastoreContext().getShardInitializationTimeout());
+
+ future.onComplete(new OnComplete<Object>() {
+ @Override
+ public void onComplete(Throwable failure, Object result) {
+ if (failure != null) {
+ LOG.error("Failed to register DataChangeListener {} at path {}",
+ listener, path.toString(), failure);
+ } else {
+ RegisterDataTreeNotificationListenerReply reply = (RegisterDataTreeNotificationListenerReply)result;
+ setListenerRegistrationActor(actorContext.actorSelection(
+ reply.getListenerRegistrationPath()));
+ }
+ }
+ }, actorContext.getClientDispatcher());
}
@Override
public void close() {
boolean sendCloseMessage;
- synchronized(this) {
+ synchronized (this) {
sendCloseMessage = !closed && listenerRegistrationActor != null;
closed = true;
}
- if(sendCloseMessage) {
- listenerRegistrationActor.tell(new
- CloseDataChangeListenerRegistration().toSerializable(), null);
+
+ if (sendCloseMessage) {
+ listenerRegistrationActor.tell(CloseDataTreeNotificationListenerRegistration.getInstance(),
+ ActorRef.noSender());
+ listenerRegistrationActor = null;
}
- dataChangeListenerActor.tell(PoisonPill.getInstance(), null);
+ if (dataChangeListenerActor != null) {
+ dataChangeListenerActor.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ dataChangeListenerActor = null;
+ }
}
}
Code Review / controller.git / blobdiff