import akka.actor.Props;
import akka.japi.Creator;
-
import com.google.common.base.Preconditions;
import org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor;
-
import org.opendaylight.controller.cluster.datastore.messages.DataChanged;
import org.opendaylight.controller.cluster.datastore.messages.DataChangedReply;
import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
public class DataChangeListener extends AbstractUntypedActor {
private final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener;
- private volatile boolean notificationsEnabled = false;
+ private boolean notificationsEnabled = false;
public DataChangeListener(AsyncDataChangeListener<YangInstanceIdentifier,
NormalizedNode<?, ?>> listener) {
change = reply.getChange();
this.listener.onDataChanged(change);
- if(getSender() != null){
+ // It seems the sender is never null but it doesn't hurt to check. If the caller passes in
+ // a null sender (ActorRef.noSender()), akka translates that to the deadLetters actor.
+ if(getSender() != null && !getContext().system().deadLetters().equals(getSender())) {
getSender().tell(new DataChangedReply(), getSelf());
}
}