package org.opendaylight.controller.cluster.datastore;
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;
+import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+/**
+ * Actor for a DataChangeListener.
+ *
+ * @deprecated Replaced by {@link DataTreeChangeListener}
+ */
+@Deprecated
public class DataChangeListener extends AbstractUntypedActor {
- private final AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>> listener;
+ private final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener;
+ private final YangInstanceIdentifier registeredPath;
+ private boolean notificationsEnabled = false;
- public DataChangeListener(
- AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>> listener) {
- this.listener = listener;
+ public DataChangeListener(AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener,
+ final YangInstanceIdentifier registeredPath) {
+ this.listener = Preconditions.checkNotNull(listener, "listener should not be null");
+ this.registeredPath = Preconditions.checkNotNull(registeredPath);
}
- @Override public void handleReceive(Object message) throws Exception {
- if(message instanceof DataChanged){
- DataChanged reply = (DataChanged) message;
- AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>>
- change = reply.getChange();
- this.listener.onDataChanged(change);
+ @Override
+ public void handleReceive(Object message) {
+ if (message instanceof DataChanged) {
+ dataChanged(message);
+ } else if (message instanceof EnableNotification) {
+ enableNotification((EnableNotification) message);
+ } else {
+ unknownMessage(message);
+ }
+ }
+
+ private void enableNotification(EnableNotification message) {
+ notificationsEnabled = message.isEnabled();
+ LOG.debug("{} notifications for listener {}", notificationsEnabled ? "Enabled" : "Disabled",
+ listener);
+ }
- if(getSender() != null){
- getSender().tell(new DataChangedReply(), getSelf());
- }
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ private void dataChanged(Object message) {
+ // Do nothing if notifications are not enabled
+ if (!notificationsEnabled) {
+ LOG.debug("Notifications not enabled for listener {} - dropping change notification", listener);
+ return;
}
- }
- public static Props props(final AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>> listener) {
- return Props.create(new Creator<DataChangeListener>() {
- @Override
- public DataChangeListener create() throws Exception {
- return new DataChangeListener(listener);
- }
+ DataChanged reply = (DataChanged) message;
+ AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change = reply.getChange();
+
+ LOG.debug("Sending change notification {} to listener {}", change, listener);
- });
+ try {
+ this.listener.onDataChanged(change);
+ } catch (RuntimeException e) {
+ LOG.error(String.format("Error notifying listener %s", this.listener), e);
+ }
+
+ if (isValidSender(getSender())) {
+ getSender().tell(DataChangedReply.INSTANCE, getSelf());
+ }
+ }
+ public static Props props(final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener,
+ final YangInstanceIdentifier registeredPath) {
+ return Props.create(DataChangeListener.class, listener, registeredPath);
}
}