import akka.actor.ActorRef;
import akka.actor.ActorSelection;
-import java.util.ArrayList;
-import java.util.Collection;
+import com.google.common.base.Optional;
+import java.util.Map.Entry;
import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListener;
import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListenerReply;
import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-final class DataTreeChangeListenerSupport extends LeaderLocalDelegateFactory<RegisterDataTreeChangeListener, ListenerRegistration<DOMDataTreeChangeListener>> {
- private static final Logger LOG = LoggerFactory.getLogger(DataTreeChangeListenerSupport.class);
- private final ArrayList<DelayedDataTreeListenerRegistration> delayedRegistrations = new ArrayList<>();
- private final Collection<ActorSelection> actors = new ArrayList<>();
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
+final class DataTreeChangeListenerSupport extends AbstractDataListenerSupport<DOMDataTreeChangeListener,
+ RegisterDataTreeChangeListener, DelayedDataTreeListenerRegistration, ListenerRegistration<DOMDataTreeChangeListener>> {
DataTreeChangeListenerSupport(final Shard shard) {
super(shard);
}
@Override
- void onLeadershipChange(final boolean isLeader) {
- 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) {
- LOG.debug("{}: registerTreeChangeListener for {}, leader: {}", persistenceId(), registerTreeChangeListener.getPath(), isLeader);
-
- final ListenerRegistration<DOMDataTreeChangeListener> registration;
- if (!isLeader) {
- LOG.debug("{}: Shard is not the leader - delaying registration", persistenceId());
-
- DelayedDataTreeListenerRegistration delayedReg =
- new DelayedDataTreeListenerRegistration(registerTreeChangeListener);
- delayedRegistrations.add(delayedReg);
- registration = delayedReg;
- } else {
- registration = createDelegate(registerTreeChangeListener);
- }
-
- ActorRef listenerRegistration = createActor(DataTreeChangeListenerRegistrationActor.props(registration));
-
- LOG.debug("{}: registerDataChangeListener sending reply, listenerRegistrationPath = {} ",
- persistenceId(), listenerRegistration.path());
-
- tellSender(new RegisterDataTreeChangeListenerReply(listenerRegistration));
- }
-
- @Override
- ListenerRegistration<DOMDataTreeChangeListener> 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
// Now store a reference to the data change listener so it can be notified
// at a later point if notifications should be enabled or disabled
- actors.add(dataChangeListenerPath);
+ if(!message.isRegisterOnAllInstances()) {
+ addListenerActor(dataChangeListenerPath);
+ }
DOMDataTreeChangeListener listener = new ForwardingDataTreeChangeListener(dataChangeListenerPath);
- LOG.debug("{}: Registering for path {}", persistenceId(), message.getPath());
+ log().debug("{}: Registering for path {}", persistenceId(), message.getPath());
+
+ Entry<ListenerRegistration<DOMDataTreeChangeListener>, Optional<DataTreeCandidate>> regEntry =
+ getShard().getDataStore().registerTreeChangeListener(message.getPath(), listener);
+
+ getShard().getDataStore().notifyOfInitialData(message.getPath(),
+ regEntry.getKey().getInstance(), regEntry.getValue());
+
+ return regEntry;
+ }
+
+ @Override
+ protected DelayedDataTreeListenerRegistration newDelayedListenerRegistration(RegisterDataTreeChangeListener message) {
+ return new DelayedDataTreeListenerRegistration(message);
+ }
- return getShard().getDataStore().registerTreeChangeListener(message.getPath(), listener);
+ @Override
+ protected ActorRef newRegistrationActor(ListenerRegistration<DOMDataTreeChangeListener> registration) {
+ return createActor(DataTreeChangeListenerRegistrationActor.props(registration));
+ }
+
+ @Override
+ protected Object newRegistrationReplyMessage(ActorRef registrationActor) {
+ return new RegisterDataTreeChangeListenerReply(registrationActor);
+ }
+
+ @Override
+ protected String logName() {
+ return "registerTreeChangeListener";
}
}