+ if(message instanceof ReadData){
+ readData((ReadData) message);
+ } else if(message instanceof WriteData){
+ writeData((WriteData) message);
+ } else if(message instanceof MergeData){
+ mergeData((MergeData) message);
+ } else if(message instanceof DeleteData){
+ deleteData((DeleteData) message);
+ } else if(message instanceof ReadyTransaction){
+ readyTransaction((ReadyTransaction) message);
+ } else if(message instanceof CloseTransaction){
+ closeTransaction((CloseTransaction) message);
+ } else if(message instanceof GetCompositedModification){
+ // This is here for testing only
+ getSender().tell(new GetCompositeModificationReply(new ImmutableCompositeModification(modification)), getSelf());
+ }
+ }
+
+ private void readData(ReadData message) {
+ final ActorRef sender = getSender();
+ final ActorRef self = getSelf();
+ final InstanceIdentifier path = message.getPath();
+ final ListenableFuture<Optional<NormalizedNode<?, ?>>> future = transaction.read(path);
+
+ future.addListener(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ Optional<NormalizedNode<?, ?>> optional = future.get();
+ if(optional.isPresent()){
+ sender.tell(new ReadDataReply(optional.get()), self);
+ } else {
+ //TODO : Need to decide what to do here
+ }
+ } catch (InterruptedException | ExecutionException e) {
+ log.error(e, "An exception happened when reading data from path : " + path.toString());
+ }
+
+ }
+ }, getContext().dispatcher());
+ }
+
+
+ private void writeData(WriteData message){
+ modification.addModification(new WriteModification(message.getPath(), message.getData()));
+ transaction.write(message.getPath(), message.getData());
+ getSender().tell(new WriteDataReply(), getSelf());
+ }
+
+ private void mergeData(MergeData message){
+ modification.addModification(new MergeModification(message.getPath(), message.getData()));
+ transaction.merge(message.getPath(), message.getData());
+ getSender().tell(new MergeDataReply(), getSelf());
+ }
+
+ private void deleteData(DeleteData message){
+ modification.addModification(new DeleteModification(message.getPath()));
+ transaction.delete(message.getPath());
+ getSender().tell(new DeleteDataReply(), getSelf());
+ }
+
+ private void readyTransaction(ReadyTransaction message){
+ DOMStoreThreePhaseCommitCohort cohort = transaction.ready();
+ ActorRef cohortActor = getContext().actorOf(ThreePhaseCommitCohort.props(cohort, shardActor, modification));
+ getSender().tell(new ReadyTransactionReply(cohortActor.path()), getSelf());
+
+ }
+
+ private void closeTransaction(CloseTransaction message){
+ transaction.close();
+ getSender().tell(new CloseTransactionReply(), getSelf());
+ }
+
+
+ // These classes are in here for test purposes only
+
+ static class GetCompositedModification {
+
+ }
+
+ static class GetCompositeModificationReply {
+ private final CompositeModification modification;
+
+
+ GetCompositeModificationReply(CompositeModification modification) {
+ this.modification = modification;
+ }
+
+
+ public CompositeModification getModification() {
+ return modification;
+ }