+
+ public static Props props(final String name) {
+ return Props.create(new Creator<Shard>() {
+
+ @Override
+ public Shard create() throws Exception {
+ return new Shard(name);
+ }
+
+ });
+ }
+
+
+ @Override
+ public void onReceive(Object message) throws Exception {
+ log.debug("Received message {}", message);
+
+ if (message instanceof CreateTransactionChain) {
+ createTransactionChain();
+ } else if (message instanceof RegisterChangeListener) {
+ registerChangeListener((RegisterChangeListener) message);
+ } else if (message instanceof UpdateSchemaContext) {
+ updateSchemaContext((UpdateSchemaContext) message);
+ } else if (message instanceof ForwardedCommitTransaction) {
+ handleForwardedCommit((ForwardedCommitTransaction) message);
+ } else if (message instanceof Persistent) {
+ commit((Modification) ((Persistent) message).payload());
+ } else if (message instanceof CreateTransaction) {
+ createTransaction((CreateTransaction) message);
+ } else if(message instanceof NonPersistent){
+ commit((Modification) ((NonPersistent) message).payload());
+ }
+ }
+
+ private void createTransaction(CreateTransaction createTransaction) {
+ DOMStoreReadWriteTransaction transaction =
+ store.newReadWriteTransaction();
+ ActorRef transactionActor = getContext().actorOf(
+ ShardTransaction.props(transaction, getSelf()), "shard-" + createTransaction.getTransactionId());
+ getSender()
+ .tell(new CreateTransactionReply(transactionActor.path().toString(), createTransaction.getTransactionId()).toSerializable(),
+ getSelf());
+ }
+
+ private void commit(Modification modification) {
+ DOMStoreThreePhaseCommitCohort cohort =
+ modificationToCohort.remove(modification);
+ if (cohort == null) {
+ log.error(
+ "Could not find cohort for modification : " + modification);
+ return;
+ }
+ final ListenableFuture<Void> future = cohort.commit();
+ final ActorRef sender = getSender();
+ final ActorRef self = getSelf();
+ future.addListener(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ future.get();
+ sender.tell(new CommitTransactionReply(), self);
+ } catch (InterruptedException | ExecutionException e) {
+ // FIXME : Handle this properly
+ log.error(e, "An exception happened when committing");
+ }
+ }
+ }, getContext().dispatcher());