import akka.actor.ActorRef;
import akka.actor.ActorSelection;
+import com.google.common.base.Optional;
import java.util.ArrayList;
import java.util.Collection;
-import java.util.Collections;
import java.util.Map.Entry;
import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-final class DataTreeChangeListenerSupport extends LeaderLocalDelegateFactory<RegisterDataTreeChangeListener, ListenerRegistration<DOMDataTreeChangeListener>, DataTreeCandidate> {
+final class DataTreeChangeListenerSupport extends LeaderLocalDelegateFactory<RegisterDataTreeChangeListener,
+ ListenerRegistration<DOMDataTreeChangeListener>, Optional<DataTreeCandidate>> {
private static final Logger LOG = LoggerFactory.getLogger(DataTreeChangeListenerSupport.class);
private final ArrayList<DelayedDataTreeListenerRegistration> delayedRegistrations = new ArrayList<>();
private final Collection<ActorSelection> actors = new ArrayList<>();
}
@Override
- void onLeadershipChange(final boolean isLeader) {
+ void onLeadershipChange(final boolean isLeader, boolean hasLeader) {
+ final EnableNotification msg = new EnableNotification(isLeader);
+ for (ActorSelection dataChangeListener : actors) {
+ dataChangeListener.tell(msg, getSelf());
+ }
+
if (isLeader) {
for (DelayedDataTreeListenerRegistration reg : delayedRegistrations) {
reg.createDelegate(this);
delayedRegistrations.clear();
delayedRegistrations.trimToSize();
}
-
- final EnableNotification msg = new EnableNotification(isLeader);
- for (ActorSelection dataChangeListener : actors) {
- dataChangeListener.tell(msg, getSelf());
- }
}
@Override
- void onMessage(final RegisterDataTreeChangeListener registerTreeChangeListener, final boolean isLeader) {
+ void onMessage(final RegisterDataTreeChangeListener registerTreeChangeListener, final boolean isLeader, boolean hasLeader) {
LOG.debug("{}: registerTreeChangeListener for {}, leader: {}", persistenceId(), registerTreeChangeListener.getPath(), isLeader);
final ListenerRegistration<DOMDataTreeChangeListener> registration;
- final DataTreeCandidate event;
if (!isLeader) {
LOG.debug("{}: Shard is not the leader - delaying registration", persistenceId());
new DelayedDataTreeListenerRegistration(registerTreeChangeListener);
delayedRegistrations.add(delayedReg);
registration = delayedReg;
- event = null;
} else {
- final Entry<ListenerRegistration<DOMDataTreeChangeListener>, DataTreeCandidate> res = createDelegate(registerTreeChangeListener);
+ final Entry<ListenerRegistration<DOMDataTreeChangeListener>, Optional<DataTreeCandidate>> res =
+ createDelegate(registerTreeChangeListener);
registration = res.getKey();
- event = res.getValue();
+ getShard().getDataStore().notifyOfInitialData(registerTreeChangeListener.getPath(),
+ registration.getInstance(), res.getValue());
}
ActorRef listenerRegistration = createActor(DataTreeChangeListenerRegistrationActor.props(registration));
persistenceId(), listenerRegistration.path());
tellSender(new RegisterDataTreeChangeListenerReply(listenerRegistration));
- if (event != null) {
- registration.getInstance().onDataTreeChanged(Collections.singletonList(event));
- }
}
@Override
- Entry<ListenerRegistration<DOMDataTreeChangeListener>, DataTreeCandidate> createDelegate(final RegisterDataTreeChangeListener message) {
+ Entry<ListenerRegistration<DOMDataTreeChangeListener>, Optional<DataTreeCandidate>> createDelegate(final RegisterDataTreeChangeListener message) {
ActorSelection dataChangeListenerPath = selectActor(message.getDataTreeChangeListenerPath());
// Notify the listener if notifications should be enabled or not