import akka.actor.ActorRef;
import akka.actor.ActorSelection;
-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.actors.DataTreeNotificationListenerRegistrationActor;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
-import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
-import org.opendaylight.controller.md.sal.dom.store.impl.DataChangeListenerRegistration;
-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.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
final class DataChangeListenerSupport extends AbstractDataListenerSupport<
- AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>, RegisterChangeListener,
- DelayedDataChangeListenerRegistration, DataChangeListenerRegistration<
- AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>> {
+ AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>, RegisterChangeListener> {
DataChangeListenerSupport(final Shard shard) {
super(shard);
}
@Override
- Entry<DataChangeListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>,
- Optional<DataTreeCandidate>> createDelegate(final RegisterChangeListener message) {
- ActorSelection dataChangeListenerPath = selectActor(message.getDataChangeListenerPath());
-
- // Notify the listener if notifications should be enabled or not
- // If this shard is the leader then it will enable notifications else
- // it will not
- dataChangeListenerPath.tell(new EnableNotification(true), getSelf());
-
- // 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
- if(!message.isRegisterOnAllInstances()) {
- addListenerActor(dataChangeListenerPath);
- }
+ void doRegistration(final RegisterChangeListener message, final ActorRef registrationActor) {
+ final ActorSelection listenerActor = processListenerRegistrationMessage(message);
AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener =
- new DataChangeListenerProxy(dataChangeListenerPath);
+ new DataChangeListenerProxy(listenerActor);
log().debug("{}: Registering for path {}", persistenceId(), message.getPath());
- Entry<DataChangeListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>,
- Optional<DataTreeCandidate>> regEntry = getShard().getDataStore().registerChangeListener(
- message.getPath(), listener, message.getScope());
-
- getShard().getDataStore().notifyOfInitialData(regEntry.getKey(), regEntry.getValue());
-
- return regEntry;
- }
-
- @Override
- protected DelayedDataChangeListenerRegistration newDelayedListenerRegistration(RegisterChangeListener message) {
- return new DelayedDataChangeListenerRegistration(message);
- }
-
- @Override
- protected ActorRef newRegistrationActor(
- ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> registration) {
- return createActor(DataChangeListenerRegistrationActor.props(registration));
- }
-
- @Override
- protected Object newRegistrationReplyMessage(ActorRef registrationActor) {
- return new RegisterChangeListenerReply(registrationActor);
+ final ShardDataTree shardDataTree = getShard().getDataStore();
+ shardDataTree.registerDataChangeListener(message.getPath(), listener, message.getScope(),
+ shardDataTree.readCurrentData(), registration -> registrationActor.tell(
+ new DataTreeNotificationListenerRegistrationActor.SetRegistration(registration, () ->
+ removeListenerActor(listenerActor)), ActorRef.noSender()));
}
@Override