package org.opendaylight.controller.cluster.datastore;
import akka.actor.Props;
-import akka.actor.UntypedActor;
import akka.japi.Creator;
+import com.google.common.base.Preconditions;
+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.common.api.data.AsyncDataChangeEvent;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-public class DataChangeListener extends UntypedActor {
- @Override public void onReceive(Object message) throws Exception {
- throw new UnsupportedOperationException("onReceive");
+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());
+ }
}
- public static Props props() {
+ public static Props props(final SchemaContext schemaContext, final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> listener, final YangInstanceIdentifier pathId) {
return Props.create(new Creator<DataChangeListener>() {
@Override
public DataChangeListener create() throws Exception {
- return new DataChangeListener();
+ return new DataChangeListener(schemaContext,listener,pathId );
}
});