import akka.actor.ActorRef;
import akka.actor.ActorSystem;
-
+import akka.dispatch.OnComplete;
+import akka.util.Timeout;
+import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
-
import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import scala.concurrent.Future;
/**
*
public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+ public static final int REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR = 24; // 24 times the usual operation timeout
private final ActorContext actorContext;
@Override
public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
ListenerRegistration<L> registerChangeListener(
- YangInstanceIdentifier path, L listener,
+ final YangInstanceIdentifier path, L listener,
AsyncDataBroker.DataChangeScope scope) {
Preconditions.checkNotNull(path, "path should not be null");
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);
- Object result = actorContext.executeLocalShardOperation(shardName,
- new RegisterChangeListener(path, dataChangeListenerActor.path(), scope));
+ Optional<ActorRef> shard = actorContext.findLocalShard(shardName);
- if (result != null) {
- RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
- return new DataChangeListenerRegistrationProxy(actorContext
- .actorSelection(reply.getListenerRegistrationPath()), listener,
- dataChangeListenerActor);
+ //if shard is NOT local
+ if (!shard.isPresent()) {
+ LOG.debug("No local shard for shardName {} was found so returning a noop registration", shardName);
+ return new NoOpDataChangeListenerRegistration(listener);
}
+ //if shard is local
+ ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(DataChangeListener.props(listener));
+ Future future = actorContext.executeOperationAsync(shard.get(),
+ new RegisterChangeListener(path, dataChangeListenerActor.path(), scope),
+ new Timeout(actorContext.getOperationDuration().$times(REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR)));
+
+ 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;
- LOG.debug(
- "No local shard for shardName {} was found so returning a noop registration",
- shardName);
-
- return new NoOpDataChangeListenerRegistration(listener);
}
@Override