+ shard.underlyingActor().onReceiveCommand(applySnapshot);
+
+ NormalizedNode<?,?> actual = readStore(shard, root);
+
+ assertEquals("Root node", expected, actual);
+
+ shard.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ }
+
+ @Test
+ public void testApplyState() throws Exception {
+
+ TestActorRef<Shard> shard = TestActorRef.create(getSystem(), newShardProps(), "testApplyState");
+
+ NormalizedNode<?, ?> node = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ ApplyState applyState = new ApplyState(null, "test", new ReplicatedLogImplEntry(1, 2,
+ newModificationPayload(new WriteModification(TestModel.TEST_PATH, node))));
+
+ shard.underlyingActor().onReceiveCommand(applyState);
+
+ NormalizedNode<?,?> actual = readStore(shard, TestModel.TEST_PATH);
+ assertEquals("Applied state", node, actual);
+
+ shard.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ }
+
+ @Test
+ public void testRecovery() throws Exception {
+
+ // Set up the InMemorySnapshotStore.
+
+ InMemoryDOMDataStore testStore = InMemoryDOMDataStoreFactory.create("Test", null, null);
+ testStore.onGlobalContextUpdated(SCHEMA_CONTEXT);
+
+ writeToStore(testStore, TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
+
+ NormalizedNode<?, ?> root = readStore(testStore, YangInstanceIdentifier.builder().build());
+
+ InMemorySnapshotStore.addSnapshot(shardID.toString(), Snapshot.create(
+ SerializationUtils.serializeNormalizedNode(root),
+ Collections.<ReplicatedLogEntry>emptyList(), 0, 1, -1, -1));
+
+ // Set up the InMemoryJournal.
+
+ InMemoryJournal.addEntry(shardID.toString(), 0, new ReplicatedLogImplEntry(0, 1, newModificationPayload(
+ new WriteModification(TestModel.OUTER_LIST_PATH,
+ ImmutableNodes.mapNodeBuilder(TestModel.OUTER_LIST_QNAME).build()))));
+
+ int nListEntries = 16;
+ Set<Integer> listEntryKeys = new HashSet<>();
+
+ // Add some ModificationPayload entries
+ for(int i = 1; i <= nListEntries; i++) {
+ listEntryKeys.add(Integer.valueOf(i));
+ YangInstanceIdentifier path = YangInstanceIdentifier.builder(TestModel.OUTER_LIST_PATH)
+ .nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, i).build();
+ Modification mod = new MergeModification(path,
+ ImmutableNodes.mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, i));
+ InMemoryJournal.addEntry(shardID.toString(), i, new ReplicatedLogImplEntry(i, 1,
+ newModificationPayload(mod)));
+ }
+
+ InMemoryJournal.addEntry(shardID.toString(), nListEntries + 1,
+ new ApplyJournalEntries(nListEntries));
+
+ testRecovery(listEntryKeys);
+ }
+
+ private ModificationPayload newModificationPayload(final Modification... mods) throws IOException {
+ MutableCompositeModification compMod = new MutableCompositeModification();
+ for(Modification mod: mods) {
+ compMod.addModification(mod);
+ }
+
+ return new ModificationPayload(compMod);
+ }
+
+ @SuppressWarnings({ "unchecked" })
+ @Test
+ public void testConcurrentThreePhaseCommits() throws Throwable {
+ new ShardTestKit(getSystem()) {{
+ final TestActorRef<Shard> shard = TestActorRef.create(getSystem(),
+ newShardProps().withDispatcher(Dispatchers.DefaultDispatcherId()),
+ "testConcurrentThreePhaseCommits");
+
+ waitUntilLeader(shard);
+
+ // Setup 3 simulated transactions with mock cohorts backed by real cohorts.
+
+ InMemoryDOMDataStore dataStore = shard.underlyingActor().getDataStore();
+
+ String transactionID1 = "tx1";
+ MutableCompositeModification modification1 = new MutableCompositeModification();
+ DOMStoreThreePhaseCommitCohort cohort1 = setupMockWriteTransaction("cohort1", dataStore,
+ TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME), modification1);
+
+ String transactionID2 = "tx2";
+ MutableCompositeModification modification2 = new MutableCompositeModification();
+ DOMStoreThreePhaseCommitCohort cohort2 = setupMockWriteTransaction("cohort2", dataStore,
+ TestModel.OUTER_LIST_PATH,
+ ImmutableNodes.mapNodeBuilder(TestModel.OUTER_LIST_QNAME).build(),
+ modification2);
+
+ String transactionID3 = "tx3";
+ MutableCompositeModification modification3 = new MutableCompositeModification();
+ DOMStoreThreePhaseCommitCohort cohort3 = setupMockWriteTransaction("cohort3", dataStore,
+ YangInstanceIdentifier.builder(TestModel.OUTER_LIST_PATH)
+ .nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).build(),
+ ImmutableNodes.mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1),
+ modification3);
+
+ long timeoutSec = 5;
+ final FiniteDuration duration = FiniteDuration.create(timeoutSec, TimeUnit.SECONDS);
+ final Timeout timeout = new Timeout(duration);
+
+ // Simulate the ForwardedReadyTransaction message for the first Tx that would be sent
+ // by the ShardTransaction.
+
+ shard.tell(new ForwardedReadyTransaction(transactionID1, CURRENT_VERSION,
+ cohort1, modification1, true), getRef());
+ ReadyTransactionReply readyReply = ReadyTransactionReply.fromSerializable(
+ expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS));
+ assertEquals("Cohort path", shard.path().toString(), readyReply.getCohortPath());
+
+ // Send the CanCommitTransaction message for the first Tx.
+
+ shard.tell(new CanCommitTransaction(transactionID1).toSerializable(), getRef());
+ CanCommitTransactionReply canCommitReply = CanCommitTransactionReply.fromSerializable(
+ expectMsgClass(duration, CanCommitTransactionReply.SERIALIZABLE_CLASS));
+ assertEquals("Can commit", true, canCommitReply.getCanCommit());
+
+ // Send the ForwardedReadyTransaction for the next 2 Tx's.
+
+ shard.tell(new ForwardedReadyTransaction(transactionID2, CURRENT_VERSION,
+ cohort2, modification2, true), getRef());
+ expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
+
+ shard.tell(new ForwardedReadyTransaction(transactionID3, CURRENT_VERSION,
+ cohort3, modification3, true), getRef());
+ expectMsgClass(duration, ReadyTransactionReply.SERIALIZABLE_CLASS);
+
+ // Send the CanCommitTransaction message for the next 2 Tx's. These should get queued and
+ // processed after the first Tx completes.
+
+ Future<Object> canCommitFuture1 = Patterns.ask(shard,
+ new CanCommitTransaction(transactionID2).toSerializable(), timeout);
+
+ Future<Object> canCommitFuture2 = Patterns.ask(shard,
+ new CanCommitTransaction(transactionID3).toSerializable(), timeout);
+
+ // Send the CommitTransaction message for the first Tx. After it completes, it should
+ // trigger the 2nd Tx to proceed which should in turn then trigger the 3rd.
+
+ shard.tell(new CommitTransaction(transactionID1).toSerializable(), getRef());
+ expectMsgClass(duration, CommitTransactionReply.SERIALIZABLE_CLASS);
+
+ // Wait for the next 2 Tx's to complete.
+
+ final AtomicReference<Throwable> caughtEx = new AtomicReference<>();
+ final CountDownLatch commitLatch = new CountDownLatch(2);
+
+ class OnFutureComplete extends OnComplete<Object> {
+ private final Class<?> expRespType;
+
+ OnFutureComplete(final Class<?> expRespType) {
+ this.expRespType = expRespType;
+ }
+
+ @Override
+ public void onComplete(final Throwable error, final Object resp) {
+ if(error != null) {
+ caughtEx.set(new AssertionError(getClass().getSimpleName() + " failure", error));
+ } else {
+ try {
+ assertEquals("Commit response type", expRespType, resp.getClass());
+ onSuccess(resp);
+ } catch (Exception e) {
+ caughtEx.set(e);