+ assertEquals("getKnownModules", persistedModules, Sets.newHashSet(knownModules));
+ }};
+ }
+
+ @Test
+ public void testOnUpdateSchemaContextUpdateKnownModulesIfTheyContainASuperSetOfTheKnownModules()
+ throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), newShardMgrProps());
+
+ assertEquals("getKnownModules size", 0, shardManager.underlyingActor().getKnownModules().size());
+
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
+
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+ moduleIdentifierSet.add(foo);
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ ModuleIdentifier bar = mock(ModuleIdentifier.class);
+ when(bar.getNamespace()).thenReturn(new URI("bar"));
+
+ moduleIdentifierSet.add(bar);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo", "bar"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+ }};
+ }
+
+ @Test
+ public void testOnUpdateSchemaContextDoNotUpdateKnownModulesIfTheyDoNotContainASuperSetOfKnownModules()
+ throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), newShardMgrProps());
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
+
+ moduleIdentifierSet.add(foo);
+
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ //Create a completely different SchemaContext with only the bar module in it
+ //schemaContext = mock(SchemaContext.class);
+ moduleIdentifierSet.clear();
+ ModuleIdentifier bar = mock(ModuleIdentifier.class);
+ when(bar.getNamespace()).thenReturn(new URI("bar"));
+
+ moduleIdentifierSet.add(bar);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ }};
+ }
+
+ @Test
+ public void testRecoveryApplicable(){
+ new JavaTestKit(getSystem()) {
+ {
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> persistentShardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ DataPersistenceProvider dataPersistenceProvider1 = persistentShardManager.underlyingActor().getDataPersistenceProvider();
+
+ assertTrue("Recovery Applicable", dataPersistenceProvider1.isRecoveryApplicable());
+
+ final Props nonPersistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(false).build(), ready);
+ final TestActorRef<ShardManager> nonPersistentShardManager =
+ TestActorRef.create(getSystem(), nonPersistentProps);
+
+ DataPersistenceProvider dataPersistenceProvider2 = nonPersistentShardManager.underlyingActor().getDataPersistenceProvider();
+
+ assertFalse("Recovery Not Applicable", dataPersistenceProvider2.isRecoveryApplicable());
+
+
+ }};
+
+ }
+
+ @Test
+ public void testOnUpdateSchemaContextUpdateKnownModulesCallsDataPersistenceProvider()
+ throws Exception {
+ final CountDownLatch persistLatch = new CountDownLatch(1);
+ final Creator<ShardManager> creator = new Creator<ShardManager>() {
+ private static final long serialVersionUID = 1L;
+ @Override
+ public ShardManager create() throws Exception {
+ return new ShardManager(new MockClusterWrapper(), new MockConfiguration(), DatastoreContext.newBuilder().build(), ready) {
+ @Override
+ protected DataPersistenceProvider createDataPersistenceProvider(boolean persistent) {
+ DataPersistenceProviderMonitor dataPersistenceProviderMonitor
+ = new DataPersistenceProviderMonitor();
+ dataPersistenceProviderMonitor.setPersistLatch(persistLatch);
+ return dataPersistenceProviderMonitor;
+ }
+ };
+ }
+ };
+
+ new JavaTestKit(getSystem()) {{
+
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), Props.create(new DelegatingShardManagerCreator(creator)));
+
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
+
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+ moduleIdentifierSet.add(foo);
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("Persisted", true,
+ Uninterruptibles.awaitUninterruptibly(persistLatch, 5, TimeUnit.SECONDS));
+
+ }};
+ }
+
+ @Test
+ public void testRoleChangeNotificationAndLeaderStateChangedReleaseReady() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
+ memberId, RaftState.Candidate.name(), RaftState.Leader.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.underlyingActor().onReceiveCommand(new LeaderStateChanged(memberId, memberId));
+
+ verify(ready, times(1)).countDown();
+
+ }};
+ }
+
+ @Test
+ public void testRoleChangeNotificationToFollowerWithLeaderStateChangedReleaseReady() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
+ memberId, null, RaftState.Follower.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
+
+ shardManager.underlyingActor().onReceiveCommand(new LeaderStateChanged(memberId, "member-2-shard-default-" + shardMrgIDSuffix));
+
+ verify(ready, times(1)).countDown();
+
+ }};
+ }
+
+ @Test
+ public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
+ memberId, null, RaftState.Follower.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.underlyingActor().onReceiveCommand(new LeaderStateChanged(memberId, "member-2-shard-default-" + shardMrgIDSuffix));
+
+ shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
+
+ verify(ready, times(1)).countDown();
+
+ }};
+ }
+
+ @Test
+ public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
+
+ shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
+ "unknown", RaftState.Candidate.name(), RaftState.Leader.name()));
+
+ verify(ready, never()).countDown();
+
+ }};
+ }
+
+
+ @Test
+ public void testByDefaultSyncStatusIsFalse() throws Exception{
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ ShardManager shardManagerActor = shardManager.underlyingActor();
+
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception{
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ ShardManager shardManagerActor = shardManager.underlyingActor();
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception{
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ ShardManager shardManagerActor = shardManager.underlyingActor();
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
+ RaftState.Follower.name(), RaftState.Candidate.name()));
+
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ // Send a FollowerInitialSyncStatus with status = true for the replica whose current state is candidate
+ shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
+
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception{
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ ShardManager shardManagerActor = shardManager.underlyingActor();
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
+ RaftState.Candidate.name(), RaftState.Follower.name()));
+
+ // Initially will be false
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ // Send status true will make sync status true
+ shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
+
+ assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
+
+ // Send status false will make sync status false
+ shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(false, "member-1-shard-default-unknown"));
+
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ }
+
+ @Test
+ public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{
+ final Props persistentProps = ShardManager.props(
+ new MockClusterWrapper(),
+ new MockConfiguration() {
+ @Override
+ public List<String> getMemberShardNames(String memberName) {
+ return Arrays.asList("default", "astronauts");
+ }
+ },
+ DatastoreContext.newBuilder().persistent(true).build(), ready);
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ ShardManager shardManagerActor = shardManager.underlyingActor();
+
+ // Initially will be false
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ // Make default shard leader
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ // default = Leader, astronauts is unknown so sync status remains false
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ // Make astronauts shard leader as well
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ // Now sync status should be true
+ assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
+
+ // Make astronauts a Follower
+ shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
+ RaftState.Leader.name(), RaftState.Follower.name()));
+
+ // Sync status is not true
+ assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
+
+ // Make the astronauts follower sync status true
+ shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-astronauts-unknown"));
+
+ // Sync status is now true
+ assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
+
+ }
+
+ private static class TestShardManager extends ShardManager {
+ private final CountDownLatch recoveryComplete = new CountDownLatch(1);
+
+ TestShardManager(String shardMrgIDSuffix) {
+ super(new MockClusterWrapper(), new MockConfiguration(),
+ DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build(), ready);
+ }
+
+ @Override
+ public void handleRecover(Object message) throws Exception {
+ try {
+ super.handleRecover(message);
+ } finally {
+ if(message instanceof RecoveryCompleted) {
+ recoveryComplete.countDown();
+ }
+ }
+ }
+
+ void waitForRecoveryComplete() {
+ assertEquals("Recovery complete", true,
+ Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS));
+ }
+ }
+
+ @SuppressWarnings("serial")
+ static class TestShardManagerCreator implements Creator<TestShardManager> {
+ String shardMrgIDSuffix;
+
+ TestShardManagerCreator(String shardMrgIDSuffix) {
+ this.shardMrgIDSuffix = shardMrgIDSuffix;
+ }
+
+ @Override
+ public TestShardManager create() throws Exception {
+ return new TestShardManager(shardMrgIDSuffix);
+ }
+
+ }
+
+ private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
+ private static final long serialVersionUID = 1L;
+ private final Creator<ShardManager> delegate;
+
+ public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
+ this.delegate = delegate;