+public class DataChangeListener extends AbstractUntypedActor {
+ private final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener;
+ private final SchemaContext schemaContext;
+ private final YangInstanceIdentifier pathId;
+ private boolean notificationsEnabled = false;
+
+ public DataChangeListener(SchemaContext schemaContext,
+ AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener, YangInstanceIdentifier pathId) {
+
+ this.schemaContext = Preconditions.checkNotNull(schemaContext, "schemaContext should not be null");
+ this.listener = Preconditions.checkNotNull(listener, "listener should not be null");
+ this.pathId = Preconditions.checkNotNull(pathId, "pathId should not be null");
+ }
+
+ @Override public void handleReceive(Object message) throws Exception {
+ if(message instanceof DataChanged){
+ dataChanged(message);
+ } else if(message instanceof EnableNotification){
+ enableNotification((EnableNotification) message);
+ }
+ }
+
+ private void enableNotification(EnableNotification message) {
+ notificationsEnabled = message.isEnabled();
+ }
+
+ private void dataChanged(Object message) {
+
+ // Do nothing if notifications are not enabled
+ if(!notificationsEnabled){
+ return;
+ }
+
+ DataChanged reply = (DataChanged) message;
+ AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>>
+ change = reply.getChange();
+ this.listener.onDataChanged(change);
+
+ if(getSender() != null){
+ getSender().tell(new DataChangedReply(), getSelf());
+ }