package org.opendaylight.controller.cluster.datastore;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
import akka.actor.ActorRef;
-import akka.actor.ActorSystem;
import akka.actor.Props;
+import akka.japi.Creator;
+import akka.pattern.Patterns;
+import akka.persistence.RecoveryCompleted;
import akka.testkit.JavaTestKit;
import akka.testkit.TestActorRef;
-import junit.framework.Assert;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
+import akka.util.Timeout;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.Uninterruptibles;
+import java.net.URI;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import org.junit.After;
+import org.junit.Before;
import org.junit.Test;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
+import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
+import org.opendaylight.controller.cluster.datastore.messages.ActorNotInitialized;
import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryFound;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryNotFound;
+import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
+import org.opendaylight.controller.cluster.datastore.utils.DoNothingActor;
+import org.opendaylight.controller.cluster.datastore.utils.InMemoryJournal;
import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper;
import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration;
-import scala.concurrent.duration.Duration;
+import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
+import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import scala.concurrent.Await;
+import scala.concurrent.Future;
-import static junit.framework.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+public class ShardManagerTest extends AbstractActorTest {
+ private static int ID_COUNTER = 1;
+
+ private final String shardMrgIDSuffix = "config" + ID_COUNTER++;
+ private final String shardMgrID = "shard-manager-" + shardMrgIDSuffix;
+
+ private static ActorRef mockShardActor;
-public class ShardManagerTest {
- private static ActorSystem system;
+ @Before
+ public void setUp() {
+ InMemoryJournal.clear();
- @BeforeClass
- public static void setUp() {
- system = ActorSystem.create("test");
+ if(mockShardActor == null) {
+ String name = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1","config").toString();
+ mockShardActor = getSystem().actorOf(Props.create(DoNothingActor.class), name);
+ }
}
- @AfterClass
- public static void tearDown() {
- JavaTestKit.shutdownActorSystem(system);
- system = null;
+ @After
+ public void tearDown() {
+ InMemoryJournal.clear();
}
- @Test
- public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception {
+ private Props newShardMgrProps() {
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", new MockClusterWrapper(),
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ DatastoreContext.Builder builder = DatastoreContext.newBuilder();
+ builder.dataStoreType(shardMrgIDSuffix);
+ return ShardManager.props(new MockClusterWrapper(), new MockConfiguration(), builder.build());
+ }
- new Within(duration("1 seconds")) {
- protected void run() {
+ @Test
+ public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- subject.tell(new FindPrimary("inventory").toSerializable(), getRef());
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
- expectMsgEquals(Duration.Zero(),
- new PrimaryNotFound("inventory").toSerializable());
+ shardManager.tell(new FindPrimary("non-existent", false).toSerializable(), getRef());
- expectNoMsg();
- }
- };
+ expectMsgEquals(duration("5 seconds"),
+ new PrimaryNotFound("non-existent").toSerializable());
}};
}
@Test
public void testOnReceiveFindPrimaryForExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", new MockClusterWrapper(),
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
- new Within(duration("1 seconds")) {
- protected void run() {
+ shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false).toSerializable(), getRef());
+
+ expectMsgClass(duration("5 seconds"), PrimaryFound.SERIALIZABLE_CLASS);
+ }};
+ }
- subject.tell(new FindPrimary(Shard.DEFAULT_NAME).toSerializable(), getRef());
+ @Test
+ public void testOnReceiveFindPrimaryForNotInitializedShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- expectMsgClass(duration("1 seconds"), PrimaryFound.SERIALIZABLE_CLASS);
+ shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false).toSerializable(), getRef());
- expectNoMsg();
- }
- };
+ expectMsgClass(duration("5 seconds"), ActorNotInitialized.class);
}};
}
@Test
- public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception {
+ public void testOnReceiveFindPrimaryWaitForShardInitialized() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", new MockClusterWrapper(),
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
- new Within(duration("1 seconds")) {
- protected void run() {
+ // We're passing waitUntilInitialized = true to FindPrimary so the response should be
+ // delayed until we send ActorInitialized.
+ Future<Object> future = Patterns.ask(shardManager, new FindPrimary(Shard.DEFAULT_NAME, true),
+ new Timeout(5, TimeUnit.SECONDS));
- subject.tell(new FindLocalShard("inventory"), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
- final String out = new ExpectMsg<String>(duration("1 seconds"), "find local") {
- protected String match(Object in) {
- if (in instanceof LocalShardNotFound) {
- return ((LocalShardNotFound) in).getShardName();
- } else {
- throw noMatch();
- }
- }
- }.get(); // this extracts the received message
+ Object resp = Await.result(future, duration("5 seconds"));
+ assertTrue("Expected: PrimaryFound, Actual: " + resp, resp instanceof PrimaryFound);
+ }};
+ }
- assertEquals("inventory", out);
+ @Test
+ public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- expectNoMsg();
- }
- };
+ 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 = getSystem().actorOf(newShardMgrProps());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
- final MockClusterWrapper mockClusterWrapper = new MockClusterWrapper();
+ LocalShardFound found = expectMsgClass(duration("5 seconds"), LocalShardFound.class);
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", mockClusterWrapper,
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ assertTrue("Found path contains " + found.getPath().path().toString(),
+ found.getPath().path().toString().contains("member-1-shard-default-config"));
+ }};
+ }
- new Within(duration("1 seconds")) {
- protected void run() {
+ @Test
+ public void testOnReceiveFindLocalShardForNotInitializedShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- subject.tell(new FindLocalShard(Shard.DEFAULT_NAME), getRef());
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
- final ActorRef out = new ExpectMsg<ActorRef>(duration("1 seconds"), "find local") {
- protected ActorRef match(Object in) {
- if (in instanceof LocalShardFound) {
- return ((LocalShardFound) in).getPath();
- } else {
- throw noMatch();
- }
- }
- }.get(); // this extracts the received message
+ expectMsgClass(duration("5 seconds"), ActorNotInitialized.class);
+ }};
+ }
- assertTrue(out.path().toString(), out.path().toString().contains("member-1-shard-default-config"));
+ @Test
+ public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
- expectNoMsg();
- }
- };
+ // 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);
}};
}
@Test
public void testOnReceiveMemberUp() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
+
+ MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString());
+
+ shardManager.tell(new FindPrimary("astronauts", false).toSerializable(), getRef());
+
+ PrimaryFound found = PrimaryFound.fromSerializable(expectMsgClass(duration("5 seconds"),
+ PrimaryFound.SERIALIZABLE_CLASS));
+ String path = found.getPrimaryPath();
+ assertTrue("Found path contains " + path, path.contains("member-2-shard-astronauts-config"));
+ }};
+ }
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", new MockClusterWrapper(),
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ @Test
+ public void testOnReceiveMemberDown() throws Exception {
- // the run() method needs to finish within 3 seconds
- new Within(duration("1 seconds")) {
- protected void run() {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
- MockClusterWrapper.sendMemberUp(subject, "member-2", getRef().path().toString());
+ MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString());
- subject.tell(new FindPrimary("astronauts").toSerializable(), getRef());
+ shardManager.tell(new FindPrimary("astronauts", false).toSerializable(), getRef());
- final String out = new ExpectMsg<String>(duration("1 seconds"), "primary found") {
- // do not put code outside this method, will run afterwards
- protected String match(Object in) {
- if (in.getClass().equals(PrimaryFound.SERIALIZABLE_CLASS)) {
- PrimaryFound f = PrimaryFound.fromSerializable(in);
- return f.getPrimaryPath();
- } else {
- throw noMatch();
- }
- }
- }.get(); // this extracts the received message
+ expectMsgClass(duration("5 seconds"), PrimaryFound.SERIALIZABLE_CLASS);
- Assert.assertTrue(out, out.contains("member-2-shard-astronauts-config"));
+ MockClusterWrapper.sendMemberRemoved(shardManager, "member-2", getRef().path().toString());
- expectNoMsg();
- }
- };
+ shardManager.tell(new FindPrimary("astronauts", false).toSerializable(), getRef());
+
+ expectMsgClass(duration("5 seconds"), PrimaryNotFound.SERIALIZABLE_CLASS);
}};
}
@Test
- public void testOnReceiveMemberDown() throws Exception {
+ public void testOnRecoveryJournalIsCleaned() {
+ InMemoryJournal.addEntry(shardMgrID, 1L, new ShardManager.SchemaContextModules(
+ ImmutableSet.of("foo")));
+ InMemoryJournal.addEntry(shardMgrID, 2L, new ShardManager.SchemaContextModules(
+ ImmutableSet.of("bar")));
+ InMemoryJournal.addDeleteMessagesCompleteLatch(shardMgrID);
+
+ new JavaTestKit(getSystem()) {{
+ TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(),
+ Props.create(new TestShardManagerCreator(shardMrgIDSuffix)));
+
+ shardManager.underlyingActor().waitForRecoveryComplete();
+ InMemoryJournal.waitForDeleteMessagesComplete(shardMgrID);
+
+ // Journal entries up to the last one should've been deleted
+ Map<Long, Object> journal = InMemoryJournal.get(shardMgrID);
+ synchronized (journal) {
+ assertEquals("Journal size", 1, journal.size());
+ assertEquals("Journal entry seq #", Long.valueOf(2), journal.keySet().iterator().next());
+ }
+ }};
+ }
- new JavaTestKit(system) {{
- final Props props = ShardManager
- .props("config", new MockClusterWrapper(),
- new MockConfiguration(), null);
- final TestActorRef<ShardManager> subject =
- TestActorRef.create(system, props);
+ @Test
+ public void testOnRecoveryPreviouslyKnownModulesAreDiscovered() throws Exception {
+ final ImmutableSet<String> persistedModules = ImmutableSet.of("foo", "bar");
+ InMemoryJournal.addEntry(shardMgrID, 1L, new ShardManager.SchemaContextModules(
+ persistedModules));
+ new JavaTestKit(getSystem()) {{
+ TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(),
+ Props.create(new TestShardManagerCreator(shardMrgIDSuffix)));
- // the run() method needs to finish within 3 seconds
- new Within(duration("1 seconds")) {
- protected void run() {
+ shardManager.underlyingActor().waitForRecoveryComplete();
- MockClusterWrapper.sendMemberUp(subject, "member-2", getRef().path().toString());
+ Collection<String> knownModules = shardManager.underlyingActor().getKnownModules();
- subject.tell(new FindPrimary("astronauts").toSerializable(), getRef());
+ assertEquals("getKnownModules", persistedModules, Sets.newHashSet(knownModules));
+ }};
+ }
- expectMsgClass(duration("1 seconds"), PrimaryFound.SERIALIZABLE_CLASS);
+ @Test
+ public void testOnUpdateSchemaContextUpdateKnownModulesIfTheyContainASuperSetOfTheKnownModules()
+ throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), newShardMgrProps());
- MockClusterWrapper.sendMemberRemoved(subject, "member-2", getRef().path().toString());
+ assertEquals("getKnownModules size", 0, shardManager.underlyingActor().getKnownModules().size());
- subject.tell(new FindPrimary("astronauts").toSerializable(), getRef());
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
- expectMsgClass(duration("1 seconds"), PrimaryNotFound.SERIALIZABLE_CLASS);
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+ moduleIdentifierSet.add(foo);
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ ModuleIdentifier bar = mock(ModuleIdentifier.class);
+ when(bar.getNamespace()).thenReturn(new URI("bar"));
+
+ moduleIdentifierSet.add(bar);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo", "bar"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+ }};
+ }
+
+ @Test
+ public void testOnUpdateSchemaContextDoNotUpdateKnownModulesIfTheyDoNotContainASuperSetOfKnownModules()
+ throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), newShardMgrProps());
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
+
+ moduleIdentifierSet.add(foo);
+
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ //Create a completely different SchemaContext with only the bar module in it
+ //schemaContext = mock(SchemaContext.class);
+ moduleIdentifierSet.clear();
+ ModuleIdentifier bar = mock(ModuleIdentifier.class);
+ when(bar.getNamespace()).thenReturn(new URI("bar"));
+
+ moduleIdentifierSet.add(bar);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("getKnownModules", Sets.newHashSet("foo"),
+ Sets.newHashSet(shardManager.underlyingActor().getKnownModules()));
+
+ }};
+ }
+
+ @Test
+ public void testRecoveryApplicable(){
+ new JavaTestKit(getSystem()) {
+ {
+ final Props persistentProps = ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(true).dataStoreType(shardMrgIDSuffix).build());
+ final TestActorRef<ShardManager> persistentShardManager =
+ TestActorRef.create(getSystem(), persistentProps);
+
+ DataPersistenceProvider dataPersistenceProvider1 = persistentShardManager.underlyingActor().getDataPersistenceProvider();
+
+ assertTrue("Recovery Applicable", dataPersistenceProvider1.isRecoveryApplicable());
+
+ final Props nonPersistentProps = ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
+ DatastoreContext.newBuilder().persistent(false).dataStoreType(shardMrgIDSuffix).build());
+ final TestActorRef<ShardManager> nonPersistentShardManager =
+ TestActorRef.create(getSystem(), nonPersistentProps);
+
+ DataPersistenceProvider dataPersistenceProvider2 = nonPersistentShardManager.underlyingActor().getDataPersistenceProvider();
+
+ assertFalse("Recovery Not Applicable", dataPersistenceProvider2.isRecoveryApplicable());
+
+
+ }};
+
+ }
+
+ @Test
+ public void testOnUpdateSchemaContextUpdateKnownModulesCallsDataPersistenceProvider()
+ throws Exception {
+ final CountDownLatch persistLatch = new CountDownLatch(1);
+ final Creator<ShardManager> creator = new Creator<ShardManager>() {
+ private static final long serialVersionUID = 1L;
+ @Override
+ public ShardManager create() throws Exception {
+ return new ShardManager(new MockClusterWrapper(), new MockConfiguration(),
+ DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build()) {
+ @Override
+ protected DataPersistenceProvider createDataPersistenceProvider(boolean persistent) {
+ DataPersistenceProviderMonitor dataPersistenceProviderMonitor
+ = new DataPersistenceProviderMonitor();
+ dataPersistenceProviderMonitor.setPersistLatch(persistLatch);
+ return dataPersistenceProviderMonitor;
+ }
+ };
+ }
+ };
+
+ new JavaTestKit(getSystem()) {{
+
+ final TestActorRef<ShardManager> shardManager =
+ TestActorRef.create(getSystem(), Props.create(new DelegatingShardManagerCreator(creator)));
+
+ ModuleIdentifier foo = mock(ModuleIdentifier.class);
+ when(foo.getNamespace()).thenReturn(new URI("foo"));
+
+ Set<ModuleIdentifier> moduleIdentifierSet = new HashSet<>();
+ moduleIdentifierSet.add(foo);
+
+ SchemaContext schemaContext = mock(SchemaContext.class);
+ when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet);
+
+ shardManager.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext));
+
+ assertEquals("Persisted", true,
+ Uninterruptibles.awaitUninterruptibly(persistLatch, 5, TimeUnit.SECONDS));
- expectNoMsg();
- }
- };
}};
}
+
+ private static class TestShardManager extends ShardManager {
+ private final CountDownLatch recoveryComplete = new CountDownLatch(1);
+
+ TestShardManager(String shardMrgIDSuffix) {
+ super(new MockClusterWrapper(), new MockConfiguration(),
+ DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build());
+ }
+
+ @Override
+ public void handleRecover(Object message) throws Exception {
+ try {
+ super.handleRecover(message);
+ } finally {
+ if(message instanceof RecoveryCompleted) {
+ recoveryComplete.countDown();
+ }
+ }
+ }
+
+ void waitForRecoveryComplete() {
+ assertEquals("Recovery complete", true,
+ Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS));
+ }
+ }
+
+ @SuppressWarnings("serial")
+ static class TestShardManagerCreator implements Creator<TestShardManager> {
+ String shardMrgIDSuffix;
+
+ TestShardManagerCreator(String shardMrgIDSuffix) {
+ this.shardMrgIDSuffix = shardMrgIDSuffix;
+ }
+
+ @Override
+ public TestShardManager create() throws Exception {
+ return new TestShardManager(shardMrgIDSuffix);
+ }
+
+ }
+
+ private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
+ private static final long serialVersionUID = 1L;
+ private Creator<ShardManager> delegate;
+
+ public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
+ this.delegate = delegate;
+ }
+
+ @Override
+ public ShardManager create() throws Exception {
+ return delegate.create();
+ }
+ }
}