Java tutorial
/* * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.controller.cluster.datastore.shardmanager; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertSame; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.never; import static org.mockito.Mockito.times; import static org.mockito.Mockito.verify; import akka.actor.ActorRef; import akka.actor.ActorSystem; import akka.actor.AddressFromURIString; import akka.actor.Props; import akka.actor.Status; import akka.actor.Status.Failure; import akka.actor.Status.Success; import akka.cluster.Cluster; import akka.cluster.ClusterEvent; import akka.cluster.Member; import akka.dispatch.Dispatchers; import akka.japi.Creator; import akka.pattern.Patterns; import akka.persistence.RecoveryCompleted; import akka.serialization.Serialization; import akka.testkit.JavaTestKit; import akka.testkit.TestActorRef; import akka.util.Timeout; import com.google.common.base.Function; import com.google.common.base.Stopwatch; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Lists; import com.google.common.collect.Sets; import com.google.common.util.concurrent.Uninterruptibles; import com.typesafe.config.ConfigFactory; import java.net.URI; import java.util.AbstractMap; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; import java.util.stream.Collectors; import org.apache.commons.lang3.SerializationUtils; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.mockito.Mock; import org.mockito.Mockito; import org.mockito.MockitoAnnotations; import org.opendaylight.controller.cluster.access.concepts.MemberName; import org.opendaylight.controller.cluster.datastore.AbstractActorTest; import org.opendaylight.controller.cluster.datastore.ClusterWrapperImpl; import org.opendaylight.controller.cluster.datastore.DataStoreVersions; import org.opendaylight.controller.cluster.datastore.DatastoreContext; import org.opendaylight.controller.cluster.datastore.DatastoreContextFactory; import org.opendaylight.controller.cluster.datastore.Shard; import org.opendaylight.controller.cluster.datastore.ShardManager.SchemaContextModules; import org.opendaylight.controller.cluster.datastore.config.Configuration; import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl; import org.opendaylight.controller.cluster.datastore.config.EmptyModuleShardConfigProvider; import org.opendaylight.controller.cluster.datastore.config.ModuleShardConfiguration; import org.opendaylight.controller.cluster.datastore.exceptions.AlreadyExistsException; import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException; import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException; import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException; import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier; import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier; import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized; import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica; import org.opendaylight.controller.cluster.datastore.messages.ChangeShardMembersVotingStatus; import org.opendaylight.controller.cluster.datastore.messages.CreateShard; import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot; import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot.ShardSnapshot; import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard; import org.opendaylight.controller.cluster.datastore.messages.FindPrimary; import org.opendaylight.controller.cluster.datastore.messages.LocalPrimaryShardFound; import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound; import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound; import org.opendaylight.controller.cluster.datastore.messages.PeerDown; import org.opendaylight.controller.cluster.datastore.messages.PeerUp; import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo; import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound; import org.opendaylight.controller.cluster.datastore.messages.RemoveShardReplica; import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged; import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext; import org.opendaylight.controller.cluster.datastore.utils.ForwardingActor; import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper; import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration; import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache; import org.opendaylight.controller.cluster.notifications.LeaderStateChanged; import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener; import org.opendaylight.controller.cluster.notifications.RoleChangeNotification; import org.opendaylight.controller.cluster.raft.RaftState; import org.opendaylight.controller.cluster.raft.TestActorFactory; import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus; import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior; import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshot; import org.opendaylight.controller.cluster.raft.client.messages.Shutdown; import org.opendaylight.controller.cluster.raft.messages.AddServer; import org.opendaylight.controller.cluster.raft.messages.AddServerReply; import org.opendaylight.controller.cluster.raft.messages.ChangeServersVotingStatus; import org.opendaylight.controller.cluster.raft.messages.RemoveServer; import org.opendaylight.controller.cluster.raft.messages.RemoveServerReply; import org.opendaylight.controller.cluster.raft.messages.ServerChangeReply; import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus; import org.opendaylight.controller.cluster.raft.messages.ServerRemoved; import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy; import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal; import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore; import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor; import org.opendaylight.controller.md.cluster.datastore.model.TestModel; import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; import org.opendaylight.yangtools.yang.model.api.SchemaContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import scala.concurrent.Await; import scala.concurrent.Future; import scala.concurrent.duration.FiniteDuration; public class ShardManagerTest extends AbstractActorTest { private static final Logger LOG = LoggerFactory.getLogger(ShardManagerTest.class); private static final MemberName MEMBER_1 = MemberName.forName("member-1"); private static final MemberName MEMBER_2 = MemberName.forName("member-2"); private static final MemberName MEMBER_3 = MemberName.forName("member-3"); private static int ID_COUNTER = 1; private final String shardMrgIDSuffix = "config" + ID_COUNTER++; private final String shardMgrID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); @Mock private static CountDownLatch ready; private static TestActorRef<MessageCollectorActor> mockShardActor; private static ShardIdentifier mockShardName; private final DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder() .dataStoreName(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS) .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(6); private final Collection<ActorSystem> actorSystems = new ArrayList<>(); private final TestActorFactory actorFactory = new TestActorFactory(getSystem()); @Before public void setUp() { MockitoAnnotations.initMocks(this); InMemoryJournal.clear(); InMemorySnapshotStore.clear(); if (mockShardActor == null) { mockShardName = ShardIdentifier.create(Shard.DEFAULT_NAME, MEMBER_1, "config"); mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), mockShardName.toString()); } mockShardActor.underlyingActor().clear(); } @After public void tearDown() { InMemoryJournal.clear(); InMemorySnapshotStore.clear(); for (ActorSystem system : actorSystems) { JavaTestKit.shutdownActorSystem(system, null, Boolean.TRUE); } actorFactory.close(); } private ActorSystem newActorSystem(String config) { ActorSystem system = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig(config)); actorSystems.add(system); return system; } private ActorRef newMockShardActor(ActorSystem system, String shardName, String memberName) { String name = ShardIdentifier.create(shardName, MemberName.forName(memberName), "config").toString(); if (system == getSystem()) { return actorFactory.createTestActor(Props.create(MessageCollectorActor.class), name); } return TestActorRef.create(system, Props.create(MessageCollectorActor.class), name); } private Props newShardMgrProps() { return newShardMgrProps(new MockConfiguration()); } private static DatastoreContextFactory newDatastoreContextFactory(DatastoreContext datastoreContext) { DatastoreContextFactory mockFactory = mock(DatastoreContextFactory.class); Mockito.doReturn(datastoreContext).when(mockFactory).getBaseDatastoreContext(); Mockito.doReturn(datastoreContext).when(mockFactory).getShardDatastoreContext(Mockito.anyString()); return mockFactory; } private TestShardManager.Builder newTestShardMgrBuilder() { return TestShardManager.builder(datastoreContextBuilder); } private TestShardManager.Builder newTestShardMgrBuilder(Configuration config) { return TestShardManager.builder(datastoreContextBuilder).configuration(config); } private Props newShardMgrProps(Configuration config) { return newTestShardMgrBuilder(config).props(); } private TestShardManager.Builder newTestShardMgrBuilderWithMockShardActor() { return newTestShardMgrBuilderWithMockShardActor(mockShardActor); } private TestShardManager.Builder newTestShardMgrBuilderWithMockShardActor(ActorRef shardActor) { return TestShardManager.builder(datastoreContextBuilder).shardActor(shardActor); } private Props newPropsShardMgrWithMockShardActor() { return newTestShardMgrBuilderWithMockShardActor().props().withDispatcher(Dispatchers.DefaultDispatcherId()); } private Props newPropsShardMgrWithMockShardActor(ActorRef shardActor) { return newTestShardMgrBuilderWithMockShardActor(shardActor).props(); } private TestShardManager newTestShardManager() { return newTestShardManager(newShardMgrProps()); } private TestShardManager newTestShardManager(Props props) { TestActorRef<TestShardManager> shardManagerActor = actorFactory.createTestActor(props); TestShardManager shardManager = shardManagerActor.underlyingActor(); shardManager.waitForRecoveryComplete(); return shardManager; } private static void waitForShardInitialized(ActorRef shardManager, String shardName, JavaTestKit kit) { AssertionError last = null; Stopwatch sw = Stopwatch.createStarted(); while (sw.elapsed(TimeUnit.SECONDS) <= 5) { try { shardManager.tell(new FindLocalShard(shardName, true), kit.getRef()); kit.expectMsgClass(LocalShardFound.class); return; } catch (AssertionError e) { last = e; } Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS); } throw last; } private static <T> T expectMsgClassOrFailure(Class<T> msgClass, JavaTestKit kit, String msg) { Object reply = kit.expectMsgAnyClassOf(JavaTestKit.duration("5 sec"), msgClass, Failure.class); if (reply instanceof Failure) { throw new AssertionError(msg + " failed", ((Failure) reply).cause()); } return (T) reply; } @Test public void testPerShardDatastoreContext() throws Exception { LOG.info("testPerShardDatastoreContext starting"); final DatastoreContextFactory mockFactory = newDatastoreContextFactory( datastoreContextBuilder.shardElectionTimeoutFactor(5).build()); Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()) .shardElectionTimeoutFactor(6).build()).when(mockFactory).getShardDatastoreContext("default"); Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()) .shardElectionTimeoutFactor(7).build()).when(mockFactory).getShardDatastoreContext("topology"); final MockConfiguration mockConfig = new MockConfiguration() { @Override public Collection<String> getMemberShardNames(MemberName memberName) { return Arrays.asList("default", "topology"); } @Override public Collection<MemberName> getMembersFromShardName(String shardName) { return members("member-1"); } }; final TestActorRef<MessageCollectorActor> defaultShardActor = actorFactory.createTestActor( Props.create(MessageCollectorActor.class), actorFactory.generateActorId("default")); final TestActorRef<MessageCollectorActor> topologyShardActor = actorFactory.createTestActor( Props.create(MessageCollectorActor.class), actorFactory.generateActorId("topology")); final Map<String, Entry<ActorRef, DatastoreContext>> shardInfoMap = Collections .synchronizedMap(new HashMap<String, Entry<ActorRef, DatastoreContext>>()); shardInfoMap.put("default", new AbstractMap.SimpleEntry<ActorRef, DatastoreContext>(defaultShardActor, null)); shardInfoMap.put("topology", new AbstractMap.SimpleEntry<ActorRef, DatastoreContext>(topologyShardActor, null)); final PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache(); final CountDownLatch newShardActorLatch = new CountDownLatch(2); class LocalShardManager extends ShardManager { public LocalShardManager(AbstractShardManagerCreator<?> creator) { super(creator); } @Override protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) { Entry<ActorRef, DatastoreContext> entry = shardInfoMap.get(info.getShardName()); ActorRef ref = null; if (entry != null) { ref = entry.getKey(); entry.setValue(info.getDatastoreContext()); } newShardActorLatch.countDown(); return ref; } } final Creator<ShardManager> creator = new Creator<ShardManager>() { private static final long serialVersionUID = 1L; @Override public ShardManager create() throws Exception { return new LocalShardManager(new GenericCreator<LocalShardManager>(LocalShardManager.class) .datastoreContextFactory(mockFactory).primaryShardInfoCache(primaryShardInfoCache) .configuration(mockConfig)); } }; JavaTestKit kit = new JavaTestKit(getSystem()); final ActorRef shardManager = actorFactory .createActor(Props.create(new DelegatingShardManagerCreator(creator)) .withDispatcher(Dispatchers.DefaultDispatcherId())); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), kit.getRef()); assertEquals("Shard actors created", true, newShardActorLatch.await(5, TimeUnit.SECONDS)); assertEquals("getShardElectionTimeoutFactor", 6, shardInfoMap.get("default").getValue().getShardElectionTimeoutFactor()); assertEquals("getShardElectionTimeoutFactor", 7, shardInfoMap.get("topology").getValue().getShardElectionTimeoutFactor()); DatastoreContextFactory newMockFactory = newDatastoreContextFactory( datastoreContextBuilder.shardElectionTimeoutFactor(5).build()); Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()) .shardElectionTimeoutFactor(66).build()).when(newMockFactory).getShardDatastoreContext("default"); Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()) .shardElectionTimeoutFactor(77).build()).when(newMockFactory).getShardDatastoreContext("topology"); shardManager.tell(newMockFactory, kit.getRef()); DatastoreContext newContext = MessageCollectorActor.expectFirstMatching(defaultShardActor, DatastoreContext.class); assertEquals("getShardElectionTimeoutFactor", 66, newContext.getShardElectionTimeoutFactor()); newContext = MessageCollectorActor.expectFirstMatching(topologyShardActor, DatastoreContext.class); assertEquals("getShardElectionTimeoutFactor", 77, newContext.getShardElectionTimeoutFactor()); LOG.info("testPerShardDatastoreContext ending"); } @Test public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new FindPrimary("non-existent", false), getRef()); expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class); } }; } @Test public void testOnReceiveFindPrimaryForLocalLeaderShard() throws Exception { LOG.info("testOnReceiveFindPrimaryForLocalLeaderShard starting"); new JavaTestKit(getSystem()) { { String memberId = "member-1-shard-default-" + shardMrgIDSuffix; final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); DataTree mockDataTree = mock(DataTree.class); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mockDataTree, DataStoreVersions.CURRENT_VERSION), getRef()); MessageCollectorActor.expectFirstMatching(mockShardActor, RegisterRoleChangeListener.class); shardManager.tell( (new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name())), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), primaryFound.getPrimaryPath().contains("member-1-shard-default")); assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree()); } }; LOG.info("testOnReceiveFindPrimaryForLocalLeaderShard ending"); } @Test public void testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp() throws Exception { LOG.info("testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.tell(new RoleChangeNotification(memberId1, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); shardManager.tell(new LeaderStateChanged(memberId1, memberId2, DataStoreVersions.CURRENT_VERSION), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); } }; LOG.info("testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp ending"); } @Test public void testOnReceiveFindPrimaryForNonLocalLeaderShard() throws Exception { LOG.info("testOnReceiveFindPrimaryForNonLocalLeaderShard starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString()); String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.tell(new RoleChangeNotification(memberId1, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; shardManager.tell(new ShardLeaderStateChanged(memberId1, memberId2, leaderVersion), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); RemotePrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), primaryFound.getPrimaryPath().contains("member-2-shard-default")); assertEquals("getPrimaryVersion", leaderVersion, primaryFound.getPrimaryVersion()); } }; LOG.info("testOnReceiveFindPrimaryForNonLocalLeaderShard ending"); } @Test public void testOnReceiveFindPrimaryForUninitializedShard() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); } }; } @Test public void testOnReceiveFindPrimaryForInitializedShardWithNoRole() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); } }; } @Test public void testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId() throws Exception { LOG.info("testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); String memberId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.tell( new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); DataTree mockDataTree = mock(DataTree.class); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mockDataTree, DataStoreVersions.CURRENT_VERSION), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), primaryFound.getPrimaryPath().contains("member-1-shard-default")); assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree()); } }; LOG.info("testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId starting"); } @Test public void testOnReceiveFindPrimaryWaitForShardLeader() throws Exception { LOG.info("testOnReceiveFindPrimaryWaitForShardLeader starting"); datastoreContextBuilder.shardInitializationTimeout(10, TimeUnit.SECONDS); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); // We're passing waitUntilInitialized = true to FindPrimary so the response should be // delayed until we send ActorInitialized and RoleChangeNotification. shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); shardManager.tell(new ActorInitialized(), mockShardActor); expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); String memberId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.tell( new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor); expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); DataTree mockDataTree = mock(DataTree.class); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mockDataTree, DataStoreVersions.CURRENT_VERSION), mockShardActor); LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), primaryFound.getPrimaryPath().contains("member-1-shard-default")); assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree()); expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS)); } }; LOG.info("testOnReceiveFindPrimaryWaitForShardLeader ending"); } @Test public void testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard() throws Exception { LOG.info("testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); expectMsgClass(duration("2 seconds"), NotInitializedException.class); shardManager.tell(new ActorInitialized(), mockShardActor); expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS)); } }; LOG.info("testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard ending"); } @Test public void testOnReceiveFindPrimaryWaitForReadyWithCandidateShard() throws Exception { LOG.info("testOnReceiveFindPrimaryWaitForReadyWithCandidateShard starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix, null, RaftState.Candidate.name()), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); } }; LOG.info("testOnReceiveFindPrimaryWaitForReadyWithCandidateShard ending"); } @Test public void testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard() throws Exception { LOG.info("testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix, null, RaftState.IsolatedLeader.name()), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); } }; LOG.info("testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard ending"); } @Test public void testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard() throws Exception { LOG.info("testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); } }; LOG.info("testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard ending"); } @Test public void testOnReceiveFindPrimaryForRemoteShard() throws Exception { LOG.info("testOnReceiveFindPrimaryForRemoteShard starting"); String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); // Create an ActorSystem ShardManager actor for member-1. final ActorSystem system1 = newActorSystem("Member1"); Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final TestActorRef<TestShardManager> shardManager1 = TestActorRef.create(system1, newTestShardMgrBuilderWithMockShardActor().cluster(new ClusterWrapperImpl(system1)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Create an ActorSystem ShardManager actor for member-2. final ActorSystem system2 = newActorSystem("Member2"); Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final ActorRef mockShardActor2 = newMockShardActor(system2, "astronauts", "member-2"); MockConfiguration mockConfig2 = new MockConfiguration( ImmutableMap.<String, List<String>>builder().put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-2")).build()); final TestActorRef<TestShardManager> shardManager2 = TestActorRef.create(system2, newTestShardMgrBuilder(mockConfig2).shardActor(mockShardActor2) .cluster(new ClusterWrapperImpl(system2)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); new JavaTestKit(system1) { { shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager2.tell(new ActorInitialized(), mockShardActor2); String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix; short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; shardManager2.tell( new ShardLeaderStateChanged(memberId2, memberId2, mock(DataTree.class), leaderVersion), mockShardActor2); shardManager2.tell( new RoleChangeNotification(memberId2, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2); shardManager1.underlyingActor().waitForMemberUp(); shardManager1.tell(new FindPrimary("astronauts", false), getRef()); RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); String path = found.getPrimaryPath(); assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-astronauts-config")); assertEquals("getPrimaryVersion", leaderVersion, found.getPrimaryVersion()); shardManager2.underlyingActor().verifyFindPrimary(); Cluster.get(system2).down(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); shardManager1.underlyingActor().waitForMemberRemoved(); shardManager1.tell(new FindPrimary("astronauts", false), getRef()); expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class); } }; LOG.info("testOnReceiveFindPrimaryForRemoteShard ending"); } @Test public void testShardAvailabilityOnChangeOfMemberReachability() throws Exception { LOG.info("testShardAvailabilityOnChangeOfMemberReachability starting"); String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); // Create an ActorSystem ShardManager actor for member-1. final ActorSystem system1 = newActorSystem("Member1"); Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); final TestActorRef<TestShardManager> shardManager1 = TestActorRef.create(system1, newTestShardMgrBuilder().shardActor(mockShardActor1).cluster(new ClusterWrapperImpl(system1)) .props().withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Create an ActorSystem ShardManager actor for member-2. final ActorSystem system2 = newActorSystem("Member2"); Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2"); MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("default", Arrays.asList("member-1", "member-2")).build()); final TestActorRef<TestShardManager> shardManager2 = TestActorRef.create(system2, newTestShardMgrBuilder(mockConfig2).shardActor(mockShardActor2) .cluster(new ClusterWrapperImpl(system2)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); new JavaTestKit(system1) { { shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager1.tell(new ActorInitialized(), mockShardActor1); shardManager2.tell(new ActorInitialized(), mockShardActor2); String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), mockShardActor1); shardManager1.tell(new RoleChangeNotification(memberId1, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1); shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), mockShardActor2); shardManager2.tell( new RoleChangeNotification(memberId2, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2); shardManager1.underlyingActor().waitForMemberUp(); shardManager1.tell(new FindPrimary("default", true), getRef()); RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); String path = found.getPrimaryPath(); assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config")); shardManager1.tell(MockClusterWrapper.createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); shardManager1.underlyingActor().waitForUnreachableMember(); PeerDown peerDown = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class); assertEquals("getMemberName", MEMBER_2, peerDown.getMemberName()); MessageCollectorActor.clearMessages(mockShardActor1); shardManager1.tell(MockClusterWrapper.createMemberRemoved("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class); shardManager1.tell(new FindPrimary("default", true), getRef()); expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); shardManager1.tell(MockClusterWrapper.createReachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); shardManager1.underlyingActor().waitForReachableMember(); PeerUp peerUp = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class); assertEquals("getMemberName", MEMBER_2, peerUp.getMemberName()); MessageCollectorActor.clearMessages(mockShardActor1); shardManager1.tell(new FindPrimary("default", true), getRef()); RemotePrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); String path1 = found1.getPrimaryPath(); assertTrue("Unexpected primary path " + path1, path1.contains("member-2-shard-default-config")); shardManager1.tell( MockClusterWrapper.createMemberUp("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class); // Test FindPrimary wait succeeds after reachable member event. shardManager1.tell(MockClusterWrapper.createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); shardManager1.underlyingActor().waitForUnreachableMember(); shardManager1.tell(new FindPrimary("default", true), getRef()); shardManager1.tell(MockClusterWrapper.createReachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); RemotePrimaryShardFound found2 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); String path2 = found2.getPrimaryPath(); assertTrue("Unexpected primary path " + path2, path2.contains("member-2-shard-default-config")); } }; LOG.info("testShardAvailabilityOnChangeOfMemberReachability ending"); } @Test public void testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange() throws Exception { LOG.info("testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange starting"); String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); // Create an ActorSystem ShardManager actor for member-1. final ActorSystem system1 = newActorSystem("Member1"); Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); final PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache(); final TestActorRef<TestShardManager> shardManager1 = TestActorRef.create(system1, newTestShardMgrBuilder().shardActor(mockShardActor1).cluster(new ClusterWrapperImpl(system1)) .primaryShardInfoCache(primaryShardInfoCache).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Create an ActorSystem ShardManager actor for member-2. final ActorSystem system2 = newActorSystem("Member2"); Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2"); MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("default", Arrays.asList("member-1", "member-2")).build()); final TestActorRef<TestShardManager> shardManager2 = TestActorRef.create(system2, newTestShardMgrBuilder(mockConfig2).shardActor(mockShardActor2) .cluster(new ClusterWrapperImpl(system2)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); new JavaTestKit(system1) { { shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager1.tell(new ActorInitialized(), mockShardActor1); shardManager2.tell(new ActorInitialized(), mockShardActor2); String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), mockShardActor1); shardManager1.tell(new RoleChangeNotification(memberId1, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1); shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), mockShardActor2); shardManager2.tell( new RoleChangeNotification(memberId2, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2); shardManager1.underlyingActor().waitForMemberUp(); shardManager1.tell(new FindPrimary("default", true), getRef()); RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); String path = found.getPrimaryPath(); assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config")); primaryShardInfoCache.putSuccessful("default", new PrimaryShardInfo( system1.actorSelection(mockShardActor1.path()), DataStoreVersions.CURRENT_VERSION)); shardManager1.tell(MockClusterWrapper.createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"), getRef()); shardManager1.underlyingActor().waitForUnreachableMember(); shardManager1.tell(new FindPrimary("default", true), getRef()); expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); assertNull("Expected primaryShardInfoCache entry removed", primaryShardInfoCache.getIfPresent("default")); shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId1, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), mockShardActor1); shardManager1.tell( new RoleChangeNotification(memberId1, RaftState.Follower.name(), RaftState.Leader.name()), mockShardActor1); shardManager1.tell(new FindPrimary("default", true), getRef()); LocalPrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); String path1 = found1.getPrimaryPath(); assertTrue("Unexpected primary path " + path1, path1.contains("member-1-shard-default-config")); } }; LOG.info("testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange ending"); } @Test public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new FindLocalShard("non-existent", false), getRef()); LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class); assertEquals("getShardName", "non-existent", notFound.getShardName()); } }; } @Test public void testOnReceiveFindLocalShardForExistentShard() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); LocalShardFound found = expectMsgClass(duration("5 seconds"), LocalShardFound.class); assertTrue("Found path contains " + found.getPath().path().toString(), found.getPath().path().toString().contains("member-1-shard-default-config")); } }; } @Test public void testOnReceiveFindLocalShardForNotInitializedShard() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); } }; } @Test public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception { LOG.info("testOnReceiveFindLocalShardWaitForShardInitialized starting"); new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); // We're passing waitUntilInitialized = true to FindLocalShard so the response should be // delayed until we send ActorInitialized. Future<Object> future = Patterns.ask(shardManager, new FindLocalShard(Shard.DEFAULT_NAME, true), new Timeout(5, TimeUnit.SECONDS)); shardManager.tell(new ActorInitialized(), mockShardActor); Object resp = Await.result(future, duration("5 seconds")); assertTrue("Expected: LocalShardFound, Actual: " + resp, resp instanceof LocalShardFound); } }; LOG.info("testOnReceiveFindLocalShardWaitForShardInitialized starting"); } @Test public void testOnRecoveryJournalIsCleaned() { String persistenceID = "shard-manager-" + shardMrgIDSuffix; InMemoryJournal.addEntry(persistenceID, 1L, new SchemaContextModules(ImmutableSet.of("foo"))); InMemoryJournal.addEntry(persistenceID, 2L, new SchemaContextModules(ImmutableSet.of("bar"))); InMemoryJournal.addDeleteMessagesCompleteLatch(persistenceID); newTestShardManager(); InMemoryJournal.waitForDeleteMessagesComplete(persistenceID); // Journal entries up to the last one should've been deleted Map<Long, Object> journal = InMemoryJournal.get(persistenceID); synchronized (journal) { assertEquals("Journal size", 0, journal.size()); } } @Test public void testRoleChangeNotificationAndShardLeaderStateChangedReleaseReady() throws Exception { TestShardManager shardManager = newTestShardManager(); String memberId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.onReceiveCommand( new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name())); verify(ready, never()).countDown(); shardManager.onReceiveCommand(new ShardLeaderStateChanged(memberId, memberId, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION)); verify(ready, times(1)).countDown(); } @Test public void testRoleChangeNotificationToFollowerWithShardLeaderStateChangedReleaseReady() throws Exception { new JavaTestKit(getSystem()) { { TestShardManager shardManager = newTestShardManager(); String memberId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager .onReceiveCommand(new RoleChangeNotification(memberId, null, RaftState.Follower.name())); verify(ready, never()).countDown(); shardManager.onReceiveCommand( MockClusterWrapper.createMemberUp("member-2", getRef().path().toString())); shardManager.onReceiveCommand( new ShardLeaderStateChanged(memberId, "member-2-shard-default-" + shardMrgIDSuffix, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION)); verify(ready, times(1)).countDown(); } }; } @Test public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception { new JavaTestKit(getSystem()) { { TestShardManager shardManager = newTestShardManager(); String memberId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager .onReceiveCommand(new RoleChangeNotification(memberId, null, RaftState.Follower.name())); verify(ready, never()).countDown(); shardManager.onReceiveCommand( new ShardLeaderStateChanged(memberId, "member-2-shard-default-" + shardMrgIDSuffix, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION)); shardManager.onReceiveCommand( MockClusterWrapper.createMemberUp("member-2", getRef().path().toString())); verify(ready, times(1)).countDown(); } }; } @Test public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception { TestShardManager shardManager = newTestShardManager(); shardManager.onReceiveCommand( new RoleChangeNotification("unknown", RaftState.Candidate.name(), RaftState.Leader.name())); verify(ready, never()).countDown(); } @Test public void testByDefaultSyncStatusIsFalse() throws Exception { TestShardManager shardManager = newTestShardManager(); assertEquals(false, shardManager.getMBean().getSyncStatus()); } @Test public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception { TestShardManager shardManager = newTestShardManager(); shardManager.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix, RaftState.Follower.name(), RaftState.Leader.name())); assertEquals(true, shardManager.getMBean().getSyncStatus()); } @Test public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception { TestShardManager shardManager = newTestShardManager(); String shardId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.onReceiveCommand( new RoleChangeNotification(shardId, RaftState.Follower.name(), RaftState.Candidate.name())); assertEquals(false, shardManager.getMBean().getSyncStatus()); // Send a FollowerInitialSyncStatus with status = true for the replica whose current state is candidate shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(true, shardId)); assertEquals(false, shardManager.getMBean().getSyncStatus()); } @Test public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception { TestShardManager shardManager = newTestShardManager(); String shardId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.onReceiveCommand( new RoleChangeNotification(shardId, RaftState.Candidate.name(), RaftState.Follower.name())); // Initially will be false assertEquals(false, shardManager.getMBean().getSyncStatus()); // Send status true will make sync status true shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(true, shardId)); assertEquals(true, shardManager.getMBean().getSyncStatus()); // Send status false will make sync status false shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(false, shardId)); assertEquals(false, shardManager.getMBean().getSyncStatus()); } @Test public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception { LOG.info("testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards starting"); TestShardManager shardManager = newTestShardManager(newShardMgrProps(new MockConfiguration() { @Override public List<String> getMemberShardNames(MemberName memberName) { return Arrays.asList("default", "astronauts"); } })); // Initially will be false assertEquals(false, shardManager.getMBean().getSyncStatus()); // Make default shard leader String defaultShardId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.onReceiveCommand( new RoleChangeNotification(defaultShardId, RaftState.Follower.name(), RaftState.Leader.name())); // default = Leader, astronauts is unknown so sync status remains false assertEquals(false, shardManager.getMBean().getSyncStatus()); // Make astronauts shard leader as well String astronautsShardId = "member-1-shard-astronauts-" + shardMrgIDSuffix; shardManager.onReceiveCommand( new RoleChangeNotification(astronautsShardId, RaftState.Follower.name(), RaftState.Leader.name())); // Now sync status should be true assertEquals(true, shardManager.getMBean().getSyncStatus()); // Make astronauts a Follower shardManager.onReceiveCommand( new RoleChangeNotification(astronautsShardId, RaftState.Leader.name(), RaftState.Follower.name())); // Sync status is not true assertEquals(false, shardManager.getMBean().getSyncStatus()); // Make the astronauts follower sync status true shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(true, astronautsShardId)); // Sync status is now true assertEquals(true, shardManager.getMBean().getSyncStatus()); LOG.info("testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards ending"); } @Test public void testOnReceiveSwitchShardBehavior() throws Exception { new JavaTestKit(getSystem()) { { final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new SwitchShardBehavior(mockShardName, RaftState.Leader, 1000), getRef()); SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class); assertEquals(RaftState.Leader, switchBehavior.getNewState()); assertEquals(1000, switchBehavior.getNewTerm()); } }; } private static List<MemberName> members(String... names) { return Arrays.asList(names).stream().map(MemberName::forName).collect(Collectors.toList()); } @Test public void testOnCreateShard() { LOG.info("testOnCreateShard starting"); new JavaTestKit(getSystem()) { { datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true); ActorRef shardManager = actorFactory .createActor(newShardMgrProps(new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); SchemaContext schemaContext = TestModel.createTestContext(); shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender()); DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100) .persistent(false).build(); Shard.Builder shardBuilder = Shard.builder(); ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module", "foo", null, members("member-1", "member-5", "member-6")); shardManager.tell(new CreateShard(config, shardBuilder, datastoreContext), getRef()); expectMsgClass(duration("5 seconds"), Success.class); shardManager.tell(new FindLocalShard("foo", true), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); assertEquals("isRecoveryApplicable", false, shardBuilder.getDatastoreContext().isPersistent()); assertTrue("Epxected ShardPeerAddressResolver", shardBuilder.getDatastoreContext() .getShardRaftConfig().getPeerAddressResolver() instanceof ShardPeerAddressResolver); assertEquals("peerMembers", Sets.newHashSet( ShardIdentifier.create("foo", MemberName.forName("member-5"), shardMrgIDSuffix).toString(), ShardIdentifier.create("foo", MemberName.forName("member-6"), shardMrgIDSuffix).toString()), shardBuilder.getPeerAddresses().keySet()); assertEquals("ShardIdentifier", ShardIdentifier.create("foo", MEMBER_1, shardMrgIDSuffix), shardBuilder.getId()); assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext()); // Send CreateShard with same name - should return Success with a message. shardManager.tell(new CreateShard(config, shardBuilder, null), getRef()); Success success = expectMsgClass(duration("5 seconds"), Success.class); assertNotNull("Success status is null", success.status()); } }; LOG.info("testOnCreateShard ending"); } @Test public void testOnCreateShardWithLocalMemberNotInShardConfig() { LOG.info("testOnCreateShardWithLocalMemberNotInShardConfig starting"); new JavaTestKit(getSystem()) { { datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true); ActorRef shardManager = actorFactory .createActor(newShardMgrProps(new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender()); Shard.Builder shardBuilder = Shard.builder(); ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module", "foo", null, members("member-5", "member-6")); shardManager.tell(new CreateShard(config, shardBuilder, null), getRef()); expectMsgClass(duration("5 seconds"), Success.class); shardManager.tell(new FindLocalShard("foo", true), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); assertEquals("peerMembers size", 0, shardBuilder.getPeerAddresses().size()); assertEquals("schemaContext", DisableElectionsRaftPolicy.class.getName(), shardBuilder .getDatastoreContext().getShardRaftConfig().getCustomRaftPolicyImplementationClass()); } }; LOG.info("testOnCreateShardWithLocalMemberNotInShardConfig ending"); } @Test public void testOnCreateShardWithNoInitialSchemaContext() { LOG.info("testOnCreateShardWithNoInitialSchemaContext starting"); new JavaTestKit(getSystem()) { { ActorRef shardManager = actorFactory .createActor(newShardMgrProps(new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); Shard.Builder shardBuilder = Shard.builder(); ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module", "foo", null, members("member-1")); shardManager.tell(new CreateShard(config, shardBuilder, null), getRef()); expectMsgClass(duration("5 seconds"), Success.class); SchemaContext schemaContext = TestModel.createTestContext(); shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender()); shardManager.tell(new FindLocalShard("foo", true), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext()); assertNotNull("schemaContext is null", shardBuilder.getDatastoreContext()); } }; LOG.info("testOnCreateShardWithNoInitialSchemaContext ending"); } @Test public void testGetSnapshot() throws Throwable { LOG.info("testGetSnapshot starting"); JavaTestKit kit = new JavaTestKit(getSystem()); MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("shard1", Arrays.asList("member-1")).put("shard2", Arrays.asList("member-1")) .put("astronauts", Collections.<String>emptyList()).build()); TestActorRef<TestShardManager> shardManager = actorFactory .createTestActor(newShardMgrProps(mockConfig).withDispatcher(Dispatchers.DefaultDispatcherId())); shardManager.tell(GetSnapshot.INSTANCE, kit.getRef()); Failure failure = kit.expectMsgClass(Failure.class); assertEquals("Failure cause type", IllegalStateException.class, failure.cause().getClass()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender()); waitForShardInitialized(shardManager, "shard1", kit); waitForShardInitialized(shardManager, "shard2", kit); shardManager.tell(GetSnapshot.INSTANCE, kit.getRef()); DatastoreSnapshot datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot"); assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType()); assertNull("Expected null ShardManagerSnapshot", datastoreSnapshot.getShardManagerSnapshot()); Function<ShardSnapshot, String> shardNameTransformer = s -> s.getName(); assertEquals("Shard names", Sets.newHashSet("shard1", "shard2"), Sets.newHashSet(Lists.transform(datastoreSnapshot.getShardSnapshots(), shardNameTransformer))); // Add a new replica JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem()); TestShardManager shardManagerInstance = shardManager.underlyingActor(); shardManagerInstance.setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef())); shardManager.tell(new AddShardReplica("astronauts"), kit.getRef()); mockShardLeaderKit.expectMsgClass(AddServer.class); mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.OK, "")); kit.expectMsgClass(Status.Success.class); waitForShardInitialized(shardManager, "astronauts", kit); // Send another GetSnapshot and verify shardManager.tell(GetSnapshot.INSTANCE, kit.getRef()); datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot"); assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"), Sets.newHashSet(Lists.transform(datastoreSnapshot.getShardSnapshots(), shardNameTransformer))); byte[] snapshotBytes = datastoreSnapshot.getShardManagerSnapshot(); assertNotNull("Expected ShardManagerSnapshot", snapshotBytes); ShardManagerSnapshot snapshot = SerializationUtils.deserialize(snapshotBytes); assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"), Sets.newHashSet(snapshot.getShardList())); LOG.info("testGetSnapshot ending"); } @Test public void testRestoreFromSnapshot() throws Throwable { LOG.info("testRestoreFromSnapshot starting"); datastoreContextBuilder.shardInitializationTimeout(3, TimeUnit.SECONDS); JavaTestKit kit = new JavaTestKit(getSystem()); MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("shard1", Collections.<String>emptyList()).put("shard2", Collections.<String>emptyList()) .put("astronauts", Collections.<String>emptyList()).build()); ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList("shard1", "shard2", "astronauts")); DatastoreSnapshot restoreFromSnapshot = new DatastoreSnapshot(shardMrgIDSuffix, SerializationUtils.serialize(snapshot), Collections.<ShardSnapshot>emptyList()); TestActorRef<TestShardManager> shardManager = actorFactory .createTestActor(newTestShardMgrBuilder(mockConfig).restoreFromSnapshot(restoreFromSnapshot).props() .withDispatcher(Dispatchers.DefaultDispatcherId())); shardManager.underlyingActor().waitForRecoveryComplete(); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender()); waitForShardInitialized(shardManager, "shard1", kit); waitForShardInitialized(shardManager, "shard2", kit); waitForShardInitialized(shardManager, "astronauts", kit); shardManager.tell(GetSnapshot.INSTANCE, kit.getRef()); DatastoreSnapshot datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot"); assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType()); byte[] snapshotBytes = datastoreSnapshot.getShardManagerSnapshot(); assertNotNull("Expected ShardManagerSnapshot", snapshotBytes); snapshot = SerializationUtils.deserialize(snapshotBytes); assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"), Sets.newHashSet(snapshot.getShardList())); LOG.info("testRestoreFromSnapshot ending"); } @Test public void testAddShardReplicaForNonExistentShardConfig() throws Exception { new JavaTestKit(getSystem()) { { ActorRef shardManager = actorFactory .createActor(newShardMgrProps(new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); shardManager.tell(new AddShardReplica("model-inventory"), getRef()); Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class); assertEquals("Failure obtained", true, (resp.cause() instanceof IllegalArgumentException)); } }; } @Test public void testAddShardReplica() throws Exception { LOG.info("testAddShardReplica starting"); MockConfiguration mockConfig = new MockConfiguration( ImmutableMap.<String, List<String>>builder().put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-2")).build()); final String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); datastoreContextBuilder.shardManagerPersistenceId(shardManagerID); // Create an ActorSystem ShardManager actor for member-1. final ActorSystem system1 = newActorSystem("Member1"); Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); final TestActorRef<TestShardManager> newReplicaShardManager = TestActorRef.create(system1, newTestShardMgrBuilder(mockConfig).shardActor(mockDefaultShardActor) .cluster(new ClusterWrapperImpl(system1)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Create an ActorSystem ShardManager actor for member-2. final ActorSystem system2 = newActorSystem("Member2"); Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix; String name = ShardIdentifier.create("astronauts", MEMBER_2, "config").toString(); final TestActorRef<MockRespondActor> mockShardLeaderActor = TestActorRef.create(system2, Props.create(MockRespondActor.class, AddServer.class, new AddServerReply(ServerChangeStatus.OK, memberId2)) .withDispatcher(Dispatchers.DefaultDispatcherId()), name); final TestActorRef<TestShardManager> leaderShardManager = TestActorRef.create(system2, newTestShardMgrBuilder(mockConfig).shardActor(mockShardLeaderActor) .cluster(new ClusterWrapperImpl(system2)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); new JavaTestKit(system1) { { newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor); short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; leaderShardManager.tell( new ShardLeaderStateChanged(memberId2, memberId2, mock(DataTree.class), leaderVersion), mockShardLeaderActor); leaderShardManager.tell( new RoleChangeNotification(memberId2, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor); newReplicaShardManager.underlyingActor().waitForMemberUp(); leaderShardManager.underlyingActor().waitForMemberUp(); //Have a dummy snapshot to be overwritten by the new data persisted. String[] restoredShards = { "default", "people" }; ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList(restoredShards)); InMemorySnapshotStore.addSnapshot(shardManagerID, snapshot); Uninterruptibles.sleepUninterruptibly(2, TimeUnit.MILLISECONDS); InMemorySnapshotStore.addSnapshotSavedLatch(shardManagerID); InMemorySnapshotStore.addSnapshotDeletedLatch(shardManagerID); //construct a mock response message newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef()); AddServer addServerMsg = MessageCollectorActor.expectFirstMatching(mockShardLeaderActor, AddServer.class); String addServerId = "member-1-shard-astronauts-" + shardMrgIDSuffix; assertEquals("AddServer serverId", addServerId, addServerMsg.getNewServerId()); expectMsgClass(duration("5 seconds"), Status.Success.class); InMemorySnapshotStore.waitForSavedSnapshot(shardManagerID, ShardManagerSnapshot.class); InMemorySnapshotStore.waitForDeletedSnapshot(shardManagerID); List<ShardManagerSnapshot> persistedSnapshots = InMemorySnapshotStore.getSnapshots(shardManagerID, ShardManagerSnapshot.class); assertEquals("Number of snapshots persisted", 1, persistedSnapshots.size()); ShardManagerSnapshot shardManagerSnapshot = persistedSnapshots.get(0); assertEquals("Persisted local shards", Sets.newHashSet("default", "astronauts"), Sets.newHashSet(shardManagerSnapshot.getShardList())); } }; LOG.info("testAddShardReplica ending"); } @Test public void testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader() throws Exception { LOG.info("testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader starting"); new JavaTestKit(getSystem()) { { TestActorRef<TestShardManager> shardManager = actorFactory .createTestActor(newPropsShardMgrWithMockShardActor(), shardMgrID); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); String leaderId = "leader-member-shard-default-" + shardMrgIDSuffix; AddServerReply addServerReply = new AddServerReply(ServerChangeStatus.ALREADY_EXISTS, null); ActorRef leaderShardActor = shardManager.underlyingActor().getContext() .actorOf(Props.create(MockRespondActor.class, AddServer.class, addServerReply), leaderId); MockClusterWrapper.sendMemberUp(shardManager, "leader-member", leaderShardActor.path().toString()); String newReplicaId = "member-1-shard-default-" + shardMrgIDSuffix; shardManager.tell(new RoleChangeNotification(newReplicaId, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); shardManager.tell( new ShardLeaderStateChanged(newReplicaId, leaderId, DataStoreVersions.CURRENT_VERSION), mockShardActor); shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); MessageCollectorActor.expectFirstMatching(leaderShardActor, AddServer.class); Failure resp = expectMsgClass(duration("5 seconds"), Failure.class); assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass()); shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); // Send message again to verify previous in progress state is cleared shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); resp = expectMsgClass(duration("5 seconds"), Failure.class); assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass()); // Send message again with an AddServer timeout to verify the pre-existing shard actor isn't terminated. shardManager.tell(newDatastoreContextFactory( datastoreContextBuilder.shardLeaderElectionTimeout(100, TimeUnit.MILLISECONDS).build()), getRef()); leaderShardActor.tell(MockRespondActor.CLEAR_RESPONSE, ActorRef.noSender()); shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); expectMsgClass(duration("5 seconds"), Failure.class); shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); } }; LOG.info("testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader ending"); } @Test public void testAddShardReplicaWithPreExistingLocalReplicaLeader() throws Exception { LOG.info("testAddShardReplicaWithPreExistingLocalReplicaLeader starting"); new JavaTestKit(getSystem()) { { String memberId = "member-1-shard-default-" + shardMrgIDSuffix; ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor()); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), mockShardActor); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), getRef()); shardManager.tell( (new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name())), mockShardActor); shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); Failure resp = expectMsgClass(duration("5 seconds"), Failure.class); assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass()); shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); expectMsgClass(duration("5 seconds"), LocalShardFound.class); } }; LOG.info("testAddShardReplicaWithPreExistingLocalReplicaLeader ending"); } @Test public void testAddShardReplicaWithAddServerReplyFailure() throws Exception { LOG.info("testAddShardReplicaWithAddServerReplyFailure starting"); new JavaTestKit(getSystem()) { { JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem()); MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("astronauts", Arrays.asList("member-2")).build()); ActorRef mockNewReplicaShardActor = newMockShardActor(getSystem(), "astronauts", "member-1"); final TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor( newTestShardMgrBuilder(mockConfig).shardActor(mockNewReplicaShardActor).props(), shardMgrID); shardManager.underlyingActor() .setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef())); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); JavaTestKit terminateWatcher = new JavaTestKit(getSystem()); terminateWatcher.watch(mockNewReplicaShardActor); shardManager.tell(new AddShardReplica("astronauts"), getRef()); AddServer addServerMsg = mockShardLeaderKit.expectMsgClass(AddServer.class); assertEquals("AddServer serverId", "member-1-shard-astronauts-" + shardMrgIDSuffix, addServerMsg.getNewServerId()); mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.TIMEOUT, null)); Failure failure = expectMsgClass(duration("5 seconds"), Failure.class); assertEquals("Failure cause", TimeoutException.class, failure.cause().getClass()); shardManager.tell(new FindLocalShard("astronauts", false), getRef()); expectMsgClass(duration("5 seconds"), LocalShardNotFound.class); terminateWatcher.expectTerminated(mockNewReplicaShardActor); shardManager.tell(new AddShardReplica("astronauts"), getRef()); mockShardLeaderKit.expectMsgClass(AddServer.class); mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.NO_LEADER, null)); failure = expectMsgClass(duration("5 seconds"), Failure.class); assertEquals("Failure cause", NoShardLeaderException.class, failure.cause().getClass()); } }; LOG.info("testAddShardReplicaWithAddServerReplyFailure ending"); } @Test public void testAddShardReplicaWithAlreadyInProgress() throws Exception { testServerChangeWhenAlreadyInProgress("astronauts", new AddShardReplica("astronauts"), AddServer.class, new AddShardReplica("astronauts")); } @Test public void testAddShardReplicaWithFindPrimaryTimeout() throws Exception { LOG.info("testAddShardReplicaWithFindPrimaryTimeout starting"); datastoreContextBuilder.shardInitializationTimeout(100, TimeUnit.MILLISECONDS); new JavaTestKit(getSystem()) { { MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("astronauts", Arrays.asList("member-2")).build()); final ActorRef newReplicaShardManager = actorFactory.createActor( newTestShardMgrBuilder(mockConfig).shardActor(mockShardActor).props(), shardMgrID); newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); MockClusterWrapper.sendMemberUp(newReplicaShardManager, "member-2", AddressFromURIString.parse("akka.tcp://non-existent@127.0.0.1:5").toString()); newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef()); Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class); assertEquals("Failure obtained", true, (resp.cause() instanceof RuntimeException)); } }; LOG.info("testAddShardReplicaWithFindPrimaryTimeout ending"); } @Test public void testRemoveShardReplicaForNonExistentShard() throws Exception { new JavaTestKit(getSystem()) { { ActorRef shardManager = actorFactory .createActor(newShardMgrProps(new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); shardManager.tell(new RemoveShardReplica("model-inventory", MEMBER_1), getRef()); Status.Failure resp = expectMsgClass(duration("10 seconds"), Status.Failure.class); assertEquals("Failure obtained", true, (resp.cause() instanceof PrimaryNotFoundException)); } }; } @Test /** * Primary is Local */ public void testRemoveShardReplicaLocal() throws Exception { new JavaTestKit(getSystem()) { { String memberId = "member-1-shard-default-" + shardMrgIDSuffix; final TestActorRef<MockRespondActor> respondActor = actorFactory .createTestActor(Props.create(MockRespondActor.class, RemoveServer.class, new RemoveServerReply(ServerChangeStatus.OK, null)), memberId); ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor(respondActor)); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), respondActor); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), getRef()); shardManager.tell( (new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name())), respondActor); shardManager.tell(new RemoveShardReplica(Shard.DEFAULT_NAME, MEMBER_1), getRef()); final RemoveServer removeServer = MessageCollectorActor.expectFirstMatching(respondActor, RemoveServer.class); assertEquals(ShardIdentifier.create("default", MEMBER_1, shardMrgIDSuffix).toString(), removeServer.getServerId()); expectMsgClass(duration("5 seconds"), Success.class); } }; } @Test public void testRemoveShardReplicaRemote() throws Exception { MockConfiguration mockConfig = new MockConfiguration( ImmutableMap.<String, List<String>>builder().put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-1")).build()); String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); // Create an ActorSystem ShardManager actor for member-1. final ActorSystem system1 = newActorSystem("Member1"); Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); final TestActorRef<TestShardManager> newReplicaShardManager = TestActorRef.create(system1, newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockDefaultShardActor) .cluster(new ClusterWrapperImpl(system1)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Create an ActorSystem ShardManager actor for member-2. final ActorSystem system2 = newActorSystem("Member2"); Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); String name = ShardIdentifier.create("default", MEMBER_2, shardMrgIDSuffix).toString(); String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; final TestActorRef<MockRespondActor> mockShardLeaderActor = TestActorRef.create(system2, Props.create(MockRespondActor.class, RemoveServer.class, new RemoveServerReply(ServerChangeStatus.OK, memberId2)), name); LOG.error("Mock Shard Leader Actor : {}", mockShardLeaderActor); final TestActorRef<TestShardManager> leaderShardManager = TestActorRef.create(system2, newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockShardLeaderActor) .cluster(new ClusterWrapperImpl(system2)).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardManagerID); // Because mockShardLeaderActor is created at the top level of the actor system it has an address like so, // akka.tcp://cluster-test@127.0.0.1:2559/user/member-2-shard-default-config1 // However when a shard manager has a local shard which is a follower and a leader that is remote it will // try to compute an address for the remote shard leader using the ShardPeerAddressResolver. This address will // look like so, // akka.tcp://cluster-test@127.0.0.1:2559/user/shardmanager-config1/member-2-shard-default-config1 // In this specific case if we did a FindPrimary for shard default from member-1 we would come up // with the address of an actor which does not exist, therefore any message sent to that actor would go to // dead letters. // To work around this problem we create a ForwardingActor with the right address and pass to it the // mockShardLeaderActor. The ForwardingActor simply forwards all messages to the mockShardLeaderActor and every // thing works as expected final ActorRef actorRef = leaderShardManager.underlyingActor().context().actorOf( Props.create(ForwardingActor.class, mockShardLeaderActor), "member-2-shard-default-" + shardMrgIDSuffix); LOG.error("Forwarding actor : {}", actorRef); new JavaTestKit(system1) { { newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor); newReplicaShardManager.tell(new ActorInitialized(), mockShardLeaderActor); short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; leaderShardManager.tell( new ShardLeaderStateChanged(memberId2, memberId2, mock(DataTree.class), leaderVersion), mockShardLeaderActor); leaderShardManager.tell( new RoleChangeNotification(memberId2, RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor); String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; newReplicaShardManager.tell( new ShardLeaderStateChanged(memberId1, memberId2, mock(DataTree.class), leaderVersion), mockShardActor); newReplicaShardManager.tell(new RoleChangeNotification(memberId1, RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); newReplicaShardManager.underlyingActor().waitForMemberUp(); leaderShardManager.underlyingActor().waitForMemberUp(); //construct a mock response message newReplicaShardManager.tell(new RemoveShardReplica("default", MEMBER_1), getRef()); RemoveServer removeServer = MessageCollectorActor.expectFirstMatching(mockShardLeaderActor, RemoveServer.class); String removeServerId = ShardIdentifier.create("default", MEMBER_1, shardMrgIDSuffix).toString(); assertEquals("RemoveServer serverId", removeServerId, removeServer.getServerId()); expectMsgClass(duration("5 seconds"), Status.Success.class); } }; } @Test public void testRemoveShardReplicaWhenAnotherRemoveShardReplicaAlreadyInProgress() throws Exception { testServerChangeWhenAlreadyInProgress("astronauts", new RemoveShardReplica("astronauts", MEMBER_2), RemoveServer.class, new RemoveShardReplica("astronauts", MEMBER_3)); } @Test public void testRemoveShardReplicaWhenAddShardReplicaAlreadyInProgress() throws Exception { testServerChangeWhenAlreadyInProgress("astronauts", new AddShardReplica("astronauts"), AddServer.class, new RemoveShardReplica("astronauts", MEMBER_2)); } public void testServerChangeWhenAlreadyInProgress(final String shardName, final Object firstServerChange, final Class<?> firstForwardedServerChangeClass, final Object secondServerChange) throws Exception { new JavaTestKit(getSystem()) { { JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem()); JavaTestKit secondRequestKit = new JavaTestKit(getSystem()); MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put(shardName, Arrays.asList("member-2")).build()); final TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(), newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockShardActor) .cluster(new MockClusterWrapper()).props() .withDispatcher(Dispatchers.DefaultDispatcherId()), shardMgrID); shardManager.underlyingActor() .setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef())); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(firstServerChange, getRef()); mockShardLeaderKit.expectMsgClass(firstForwardedServerChangeClass); shardManager.tell(secondServerChange, secondRequestKit.getRef()); secondRequestKit.expectMsgClass(duration("5 seconds"), Failure.class); } }; } @Test public void testServerRemovedShardActorNotRunning() throws Exception { LOG.info("testServerRemovedShardActorNotRunning starting"); new JavaTestKit(getSystem()) { { MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-2")) .put("people", Arrays.asList("member-1", "member-2")).build()); TestActorRef<TestShardManager> shardManager = actorFactory .createTestActor(newShardMgrProps(mockConfig)); shardManager.underlyingActor().waitForRecoveryComplete(); shardManager.tell(new FindLocalShard("people", false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); shardManager.tell(new FindLocalShard("default", false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); // Removed the default shard replica from member-1 ShardIdentifier.Builder builder = new ShardIdentifier.Builder(); ShardIdentifier shardId = builder.shardName("default").memberName(MEMBER_1).type(shardMrgIDSuffix) .build(); shardManager.tell(new ServerRemoved(shardId.toString()), getRef()); shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people")); } }; LOG.info("testServerRemovedShardActorNotRunning ending"); } @Test public void testServerRemovedShardActorRunning() throws Exception { LOG.info("testServerRemovedShardActorRunning starting"); new JavaTestKit(getSystem()) { { MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-2")) .put("people", Arrays.asList("member-1", "member-2")).build()); String shardId = ShardIdentifier.create("default", MEMBER_1, shardMrgIDSuffix).toString(); TestActorRef<MessageCollectorActor> shard = actorFactory .createTestActor(MessageCollectorActor.props(), shardId); TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor( newTestShardMgrBuilder(mockConfig).addShardActor("default", shard).props()); shardManager.underlyingActor().waitForRecoveryComplete(); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), shard); waitForShardInitialized(shardManager, "people", this); waitForShardInitialized(shardManager, "default", this); // Removed the default shard replica from member-1 shardManager.tell(new ServerRemoved(shardId), getRef()); shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people")); MessageCollectorActor.expectFirstMatching(shard, Shutdown.class); } }; LOG.info("testServerRemovedShardActorRunning ending"); } @Test public void testShardPersistenceWithRestoredData() throws Exception { LOG.info("testShardPersistenceWithRestoredData starting"); new JavaTestKit(getSystem()) { { MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("default", Arrays.asList("member-1", "member-2")) .put("astronauts", Arrays.asList("member-2")) .put("people", Arrays.asList("member-1", "member-2")).build()); String[] restoredShards = { "default", "astronauts" }; ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList(restoredShards)); InMemorySnapshotStore.addSnapshot("shard-manager-" + shardMrgIDSuffix, snapshot); //create shardManager to come up with restored data TestActorRef<TestShardManager> newRestoredShardManager = actorFactory .createTestActor(newShardMgrProps(mockConfig)); newRestoredShardManager.underlyingActor().waitForRecoveryComplete(); newRestoredShardManager.tell(new FindLocalShard("people", false), getRef()); LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class); assertEquals("for uninitialized shard", "people", notFound.getShardName()); //Verify a local shard is created for the restored shards, //although we expect a NotInitializedException for the shards as the actor initialization //message is not sent for them newRestoredShardManager.tell(new FindLocalShard("default", false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); newRestoredShardManager.tell(new FindLocalShard("astronauts", false), getRef()); expectMsgClass(duration("5 seconds"), NotInitializedException.class); } }; LOG.info("testShardPersistenceWithRestoredData ending"); } @Test public void testShutDown() throws Exception { LOG.info("testShutDown starting"); new JavaTestKit(getSystem()) { { MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder() .put("shard1", Arrays.asList("member-1")).put("shard2", Arrays.asList("member-1")).build()); String shardId1 = ShardIdentifier.create("shard1", MEMBER_1, shardMrgIDSuffix).toString(); TestActorRef<MessageCollectorActor> shard1 = actorFactory.createTestActor( MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()), shardId1); String shardId2 = ShardIdentifier.create("shard2", MEMBER_1, shardMrgIDSuffix).toString(); TestActorRef<MessageCollectorActor> shard2 = actorFactory.createTestActor( MessageCollectorActor.props().withDispatcher(Dispatchers.DefaultDispatcherId()), shardId2); TestActorRef<TestShardManager> shardManager = actorFactory .createTestActor(newTestShardMgrBuilder(mockConfig).addShardActor("shard1", shard1) .addShardActor("shard2", shard2).props() .withDispatcher(Dispatchers.DefaultDispatcherId())); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), shard1); shardManager.tell(new ActorInitialized(), shard2); FiniteDuration duration = FiniteDuration.create(5, TimeUnit.SECONDS); Future<Boolean> stopFuture = Patterns.gracefulStop(shardManager, duration, Shutdown.INSTANCE); MessageCollectorActor.expectFirstMatching(shard1, Shutdown.class); MessageCollectorActor.expectFirstMatching(shard2, Shutdown.class); try { Await.ready(stopFuture, FiniteDuration.create(500, TimeUnit.MILLISECONDS)); fail("ShardManager actor stopped without waiting for the Shards to be stopped"); } catch (TimeoutException e) { // expected } actorFactory.killActor(shard1, this); actorFactory.killActor(shard2, this); Boolean stopped = Await.result(stopFuture, duration); assertEquals("Stopped", Boolean.TRUE, stopped); } }; LOG.info("testShutDown ending"); } @Test public void testChangeServersVotingStatus() throws Exception { new JavaTestKit(getSystem()) { { String memberId = "member-1-shard-default-" + shardMrgIDSuffix; TestActorRef<MockRespondActor> respondActor = actorFactory .createTestActor(Props.create(MockRespondActor.class, ChangeServersVotingStatus.class, new ServerChangeReply(ServerChangeStatus.OK, null)), memberId); ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor(respondActor)); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), respondActor); shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, mock(DataTree.class), DataStoreVersions.CURRENT_VERSION), getRef()); shardManager.tell( (new RoleChangeNotification(memberId, RaftState.Candidate.name(), RaftState.Leader.name())), respondActor); shardManager.tell( new ChangeShardMembersVotingStatus("default", ImmutableMap.of("member-2", Boolean.TRUE)), getRef()); ChangeServersVotingStatus actualChangeStatusMsg = MessageCollectorActor .expectFirstMatching(respondActor, ChangeServersVotingStatus.class); assertEquals("ChangeServersVotingStatus map", actualChangeStatusMsg.getServerVotingStatusMap(), ImmutableMap.of(ShardIdentifier .create("default", MemberName.forName("member-2"), shardMrgIDSuffix).toString(), Boolean.TRUE)); expectMsgClass(duration("5 seconds"), Success.class); } }; } @Test public void testChangeServersVotingStatusWithNoLeader() throws Exception { new JavaTestKit(getSystem()) { { String memberId = "member-1-shard-default-" + shardMrgIDSuffix; TestActorRef<MockRespondActor> respondActor = actorFactory .createTestActor(Props.create(MockRespondActor.class, ChangeServersVotingStatus.class, new ServerChangeReply(ServerChangeStatus.NO_LEADER, null)), memberId); ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor(respondActor)); shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); shardManager.tell(new ActorInitialized(), respondActor); shardManager.tell((new RoleChangeNotification(memberId, null, RaftState.Follower.name())), respondActor); shardManager.tell( new ChangeShardMembersVotingStatus("default", ImmutableMap.of("member-2", Boolean.TRUE)), getRef()); MessageCollectorActor.expectFirstMatching(respondActor, ChangeServersVotingStatus.class); Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class); assertEquals("Failure resposnse", true, (resp.cause() instanceof NoShardLeaderException)); } }; } private static class TestShardManager extends ShardManager { private final CountDownLatch recoveryComplete = new CountDownLatch(1); private final CountDownLatch snapshotPersist = new CountDownLatch(1); private ShardManagerSnapshot snapshot; private final Map<String, ActorRef> shardActors; private final ActorRef shardActor; private CountDownLatch findPrimaryMessageReceived = new CountDownLatch(1); private CountDownLatch memberUpReceived = new CountDownLatch(1); private CountDownLatch memberRemovedReceived = new CountDownLatch(1); private CountDownLatch memberUnreachableReceived = new CountDownLatch(1); private CountDownLatch memberReachableReceived = new CountDownLatch(1); private volatile MessageInterceptor messageInterceptor; private TestShardManager(Builder builder) { super(builder); shardActor = builder.shardActor; shardActors = builder.shardActors; } @Override protected void handleRecover(Object message) throws Exception { try { super.handleRecover(message); } finally { if (message instanceof RecoveryCompleted) { recoveryComplete.countDown(); } } } private void countDownIfOther(final Member member, CountDownLatch latch) { if (!getCluster().getCurrentMemberName().equals(memberToName(member))) { latch.countDown(); } } @Override public void handleCommand(Object message) throws Exception { try { if (messageInterceptor != null && messageInterceptor.canIntercept(message)) { getSender().tell(messageInterceptor.apply(message), getSelf()); } else { super.handleCommand(message); } } finally { if (message instanceof FindPrimary) { findPrimaryMessageReceived.countDown(); } else if (message instanceof ClusterEvent.MemberUp) { countDownIfOther(((ClusterEvent.MemberUp) message).member(), memberUpReceived); } else if (message instanceof ClusterEvent.MemberRemoved) { countDownIfOther(((ClusterEvent.MemberRemoved) message).member(), memberRemovedReceived); } else if (message instanceof ClusterEvent.UnreachableMember) { countDownIfOther(((ClusterEvent.UnreachableMember) message).member(), memberUnreachableReceived); } else if (message instanceof ClusterEvent.ReachableMember) { countDownIfOther(((ClusterEvent.ReachableMember) message).member(), memberReachableReceived); } } } void setMessageInterceptor(MessageInterceptor messageInterceptor) { this.messageInterceptor = messageInterceptor; } void waitForRecoveryComplete() { assertEquals("Recovery complete", true, Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS)); } void waitForMemberUp() { assertEquals("MemberUp received", true, Uninterruptibles.awaitUninterruptibly(memberUpReceived, 5, TimeUnit.SECONDS)); memberUpReceived = new CountDownLatch(1); } void waitForMemberRemoved() { assertEquals("MemberRemoved received", true, Uninterruptibles.awaitUninterruptibly(memberRemovedReceived, 5, TimeUnit.SECONDS)); memberRemovedReceived = new CountDownLatch(1); } void waitForUnreachableMember() { assertEquals("UnreachableMember received", true, Uninterruptibles.awaitUninterruptibly(memberUnreachableReceived, 5, TimeUnit.SECONDS)); memberUnreachableReceived = new CountDownLatch(1); } void waitForReachableMember() { assertEquals("ReachableMember received", true, Uninterruptibles.awaitUninterruptibly(memberReachableReceived, 5, TimeUnit.SECONDS)); memberReachableReceived = new CountDownLatch(1); } void verifyFindPrimary() { assertEquals("FindPrimary received", true, Uninterruptibles.awaitUninterruptibly(findPrimaryMessageReceived, 5, TimeUnit.SECONDS)); findPrimaryMessageReceived = new CountDownLatch(1); } public static Builder builder(DatastoreContext.Builder datastoreContextBuilder) { return new Builder(datastoreContextBuilder); } private static class Builder extends AbstractGenericCreator<Builder, TestShardManager> { private ActorRef shardActor; private final Map<String, ActorRef> shardActors = new HashMap<>(); Builder(DatastoreContext.Builder datastoreContextBuilder) { super(TestShardManager.class); datastoreContextFactory(newDatastoreContextFactory(datastoreContextBuilder.build())); } Builder shardActor(ActorRef shardActor) { this.shardActor = shardActor; return this; } Builder addShardActor(String shardName, ActorRef actorRef) { shardActors.put(shardName, actorRef); return this; } } @Override public void saveSnapshot(Object obj) { snapshot = (ShardManagerSnapshot) obj; snapshotPersist.countDown(); super.saveSnapshot(obj); } void verifySnapshotPersisted(Set<String> shardList) { assertEquals("saveSnapshot invoked", true, Uninterruptibles.awaitUninterruptibly(snapshotPersist, 5, TimeUnit.SECONDS)); assertEquals("Shard Persisted", shardList, Sets.newHashSet(snapshot.getShardList())); } @Override protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) { if (shardActors.get(info.getShardName()) != null) { return shardActors.get(info.getShardName()); } if (shardActor != null) { return shardActor; } return super.newShardActor(schemaContext, info); } } private static abstract class AbstractGenericCreator<T extends AbstractGenericCreator<T, ?>, C extends ShardManager> extends AbstractShardManagerCreator<T> { private final Class<C> shardManagerClass; AbstractGenericCreator(Class<C> shardManagerClass) { this.shardManagerClass = shardManagerClass; cluster(new MockClusterWrapper()).configuration(new MockConfiguration()) .waitTillReadyCountdownLatch(ready).primaryShardInfoCache(new PrimaryShardInfoFutureCache()); } @Override public Props props() { verify(); return Props.create(shardManagerClass, this); } } private static class GenericCreator<C extends ShardManager> extends AbstractGenericCreator<GenericCreator<C>, C> { GenericCreator(Class<C> shardManagerClass) { super(shardManagerClass); } } 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; } @Override public ShardManager create() throws Exception { return delegate.create(); } } interface MessageInterceptor extends Function<Object, Object> { boolean canIntercept(Object message); } private static MessageInterceptor newFindPrimaryInterceptor(final ActorRef primaryActor) { return new MessageInterceptor() { @Override public Object apply(Object message) { return new RemotePrimaryShardFound(Serialization.serializedActorPath(primaryActor), (short) 1); } @Override public boolean canIntercept(Object message) { return message instanceof FindPrimary; } }; } private static class MockRespondActor extends MessageCollectorActor { static final String CLEAR_RESPONSE = "clear-response"; private Object responseMsg; private final Class<?> requestClass; @SuppressWarnings("unused") public MockRespondActor(Class<?> requestClass, Object responseMsg) { this.requestClass = requestClass; this.responseMsg = responseMsg; } @Override public void onReceive(Object message) throws Exception { if (message.equals(CLEAR_RESPONSE)) { responseMsg = null; } else { super.onReceive(message); if (message.getClass().equals(requestClass) && responseMsg != null) { getSender().tell(responseMsg, getSelf()); } } } } }