import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.actor.AddressFromURIString;
+import akka.actor.PoisonPill;
import akka.actor.Props;
import akka.actor.Status;
+import akka.actor.Status.Failure;
import akka.cluster.Cluster;
import akka.cluster.ClusterEvent;
import akka.dispatch.Dispatchers;
import com.google.common.util.concurrent.Uninterruptibles;
import com.typesafe.config.ConfigFactory;
import java.net.URI;
+import java.util.AbstractMap;
import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
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 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.datastore.config.Configuration;
import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl;
import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
import org.opendaylight.controller.cluster.datastore.messages.CreateShardReply;
+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.raft.RaftState;
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.messages.AddServer;
+import org.opendaylight.controller.cluster.raft.messages.AddServerReply;
+import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus;
import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
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 Props newShardMgrProps(Configuration config) {
- return ShardManager.props(new MockClusterWrapper(), config, datastoreContextBuilder.build(), ready,
- primaryShardInfoCache);
+ return ShardManager.props(new MockClusterWrapper(), config,
+ newDatastoreContextFactory(datastoreContextBuilder.build()), ready, primaryShardInfoCache);
}
private Props newPropsShardMgrWithMockShardActor() {
private static final long serialVersionUID = 1L;
@Override
public ShardManager create() throws Exception {
- return new ForwardingShardManager(clusterWrapper, config, datastoreContextBuilder.build(),
- ready, name, shardActor, primaryShardInfoCache);
+ return new ForwardingShardManager(clusterWrapper, config, newDatastoreContextFactory(
+ datastoreContextBuilder.build()), ready, name, shardActor, primaryShardInfoCache);
}
};
return Props.create(new DelegatingShardManagerCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId());
}
+ @Test
+ public void testPerShardDatastoreContext() throws Exception {
+ 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(String memberName) {
+ return Arrays.asList("default", "topology");
+ }
+
+ @Override
+ public Collection<String> getMembersFromShardName(String shardName) {
+ return Arrays.asList("member-1");
+ }
+ };
+
+ final TestActorRef<MessageCollectorActor> defaultShardActor = TestActorRef.create(getSystem(),
+ Props.create(MessageCollectorActor.class), "default");
+ final TestActorRef<MessageCollectorActor> topologyShardActor = TestActorRef.create(getSystem(),
+ Props.create(MessageCollectorActor.class), "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 CountDownLatch newShardActorLatch = new CountDownLatch(2);
+ final Creator<ShardManager> creator = new Creator<ShardManager>() {
+ private static final long serialVersionUID = 1L;
+ @Override
+ public ShardManager create() throws Exception {
+ return new ShardManager(new MockClusterWrapper(), mockConfig, mockFactory, ready, primaryShardInfoCache) {
+ @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;
+ }
+ };
+ }
+ };
+
+ JavaTestKit kit = new JavaTestKit(getSystem());
+
+ final ActorRef shardManager = getSystem().actorOf(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());
+
+ defaultShardActor.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ topologyShardActor.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ }
+
@Test
public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception {
new JavaTestKit(getSystem()) {{
@Test
public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception{
- final Props persistentProps = ShardManager.props(
- new MockClusterWrapper(),
- new MockConfiguration(),
- DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
+ final Props persistentProps = ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
+ newDatastoreContextFactory(DatastoreContext.newBuilder().persistent(true).build()), ready,
+ primaryShardInfoCache);
final TestActorRef<ShardManager> shardManager =
TestActorRef.create(getSystem(), persistentProps);
@Test
public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception{
- final Props persistentProps = ShardManager.props(
- new MockClusterWrapper(),
- new MockConfiguration(),
- DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
+ final Props persistentProps = ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
+ newDatastoreContextFactory(DatastoreContext.newBuilder().persistent(true).build()), ready,
+ primaryShardInfoCache);
final TestActorRef<ShardManager> shardManager =
TestActorRef.create(getSystem(), persistentProps);
@Test
public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{
- final Props persistentProps = ShardManager.props(
- new MockClusterWrapper(),
+ final Props persistentProps = ShardManager.props(new MockClusterWrapper(),
new MockConfiguration() {
@Override
public List<String> getMemberShardNames(String memberName) {
return Arrays.asList("default", "astronauts");
}
},
- DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
+ newDatastoreContextFactory(DatastoreContext.newBuilder().persistent(true).build()), ready,
+ primaryShardInfoCache);
final TestActorRef<ShardManager> shardManager =
TestActorRef.create(getSystem(), persistentProps);
DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100).
persistent(false).build();
- TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
+ Shard.Builder shardBuilder = Shard.builder();
ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
"foo", null, Arrays.asList("member-1", "member-5", "member-6"));
- shardManager.tell(new CreateShard(config, shardPropsCreator, datastoreContext), getRef());
+ shardManager.tell(new CreateShard(config, shardBuilder, datastoreContext), getRef());
expectMsgClass(duration("5 seconds"), CreateShardReply.class);
expectMsgClass(duration("5 seconds"), LocalShardFound.class);
- assertEquals("isRecoveryApplicable", false, shardPropsCreator.datastoreContext.isPersistent());
- assertTrue("Epxected ShardPeerAddressResolver", shardPropsCreator.datastoreContext.getShardRaftConfig().
+ assertEquals("isRecoveryApplicable", false, shardBuilder.getDatastoreContext().isPersistent());
+ assertTrue("Epxected ShardPeerAddressResolver", shardBuilder.getDatastoreContext().getShardRaftConfig().
getPeerAddressResolver() instanceof ShardPeerAddressResolver);
assertEquals("peerMembers", Sets.newHashSet(new ShardIdentifier("foo", "member-5", shardMrgIDSuffix).toString(),
new ShardIdentifier("foo", "member-6", shardMrgIDSuffix).toString()),
- shardPropsCreator.peerAddresses.keySet());
+ shardBuilder.getPeerAddresses().keySet());
assertEquals("ShardIdentifier", new ShardIdentifier("foo", "member-1", shardMrgIDSuffix),
- shardPropsCreator.shardId);
- assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
+ shardBuilder.getId());
+ assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext());
// Send CreateShard with same name - should fail.
- shardManager.tell(new CreateShard(config, shardPropsCreator, null), getRef());
+ shardManager.tell(new CreateShard(config, shardBuilder, null), getRef());
expectMsgClass(duration("5 seconds"), akka.actor.Status.Failure.class);
}};
ActorRef shardManager = getSystem().actorOf(newShardMgrProps(
new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
- TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
+ Shard.Builder shardBuilder = Shard.builder();
ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
"foo", null, Arrays.asList("member-1"));
- shardManager.tell(new CreateShard(config, shardPropsCreator, null), getRef());
+ shardManager.tell(new CreateShard(config, shardBuilder, null), getRef());
expectMsgClass(duration("5 seconds"), CreateShardReply.class);
expectMsgClass(duration("5 seconds"), LocalShardFound.class);
- assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
- assertNotNull("schemaContext is null", shardPropsCreator.datastoreContext);
+ assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext());
+ assertNotNull("schemaContext is null", shardBuilder.getDatastoreContext());
}};
}
+ @Test
+ public void testGetSnapshot() throws Throwable {
+ 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")).build());
+
+ ActorRef shardManager = getSystem().actorOf(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());
+
+ kit = new JavaTestKit(getSystem());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender());
+
+ shardManager.tell(new FindLocalShard("shard1", true), kit.getRef());
+ kit.expectMsgClass(LocalShardFound.class);
+ shardManager.tell(new FindLocalShard("shard2", true), kit.getRef());
+ kit.expectMsgClass(LocalShardFound.class);
+
+ shardManager.tell(GetSnapshot.INSTANCE, kit.getRef());
+
+ DatastoreSnapshot datastoreSnapshot = kit.expectMsgClass(DatastoreSnapshot.class);
+
+ assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType());
+ List<ShardSnapshot> shardSnapshots = datastoreSnapshot.getShardSnapshots();
+ Set<String> actualShardNames = new HashSet<>();
+ for(ShardSnapshot s: shardSnapshots) {
+ actualShardNames.add(s.getName());
+ }
+
+ assertEquals("Shard names", Sets.newHashSet("shard1", "shard2"), actualShardNames);
+
+ shardManager.tell(PoisonPill.getInstance(), ActorRef.noSender());
+ }
+
@Test
public void testAddShardReplicaForNonExistentShard() throws Exception {
new JavaTestKit(getSystem()) {{
@Test
public void testAddShardReplica() throws Exception {
- 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")).build());
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("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<ForwardingShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newPropsShardMgrWithMockShardActor("shardManager1", mockDefaultShardActor,
+ new ClusterWrapperImpl(system1), mockConfig), shardManagerID);
+
+ // Create an ActorSystem ShardManager actor for member-2.
+ final ActorSystem system2 = ActorSystem.create("cluster-test",
+ ConfigFactory.load().getConfig("Member2"));
+ Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ String name = new ShardIdentifier("astronauts", "member-2", "config").toString();
+ final TestActorRef<MockRespondActor> mockShardLeaderActor =
+ TestActorRef.create(system2, Props.create(MockRespondActor.class), name);
+ final TestActorRef<ForwardingShardManager> leaderShardManager = TestActorRef.create(system2,
+ newPropsShardMgrWithMockShardActor("shardManager2", mockShardLeaderActor,
+ new ClusterWrapperImpl(system2), mockConfig), shardManagerID);
+
+ new JavaTestKit(system1) {{
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor);
+
+ String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix;
+ short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
+ leaderShardManager.tell(new ShardLeaderStateChanged(memberId2, memberId2,
+ Optional.of(mock(DataTree.class)), leaderVersion), mockShardLeaderActor);
+ leaderShardManager.tell(new RoleChangeNotification(memberId2,
+ RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor);
+
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
+ leaderShardManager.underlyingActor().waitForMemberUp();
+
+ //construct a mock response message
+ AddServerReply response = new AddServerReply(ServerChangeStatus.OK, memberId2);
+ mockShardLeaderActor.underlyingActor().updateResponse(response);
+ 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);
+ }};
+
+ JavaTestKit.shutdownActorSystem(system1);
+ JavaTestKit.shutdownActorSystem(system2);
+ }
+
+ @Test
+ public void testAddShardReplicaWithFindPrimaryTimeout() throws Exception {
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("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<ForwardingShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newPropsShardMgrWithMockShardActor("shardManager1", mockDefaultShardActor,
+ new ClusterWrapperImpl(system1), mockConfig), shardManagerID);
+
+ new JavaTestKit(system1) {{
- ActorRef shardManager = getSystem().actorOf(newShardMgrProps(mockConfig));
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ MockClusterWrapper.sendMemberUp(newReplicaShardManager, "member-2", getRef().path().toString());
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
- shardManager.tell(new AddShardReplica("astronauts"), getRef());
- expectMsgClass(duration("2 seconds"), Status.Success.class);
- }};
+ newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef());
+ Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof RuntimeException));
+ }};
+
+ JavaTestKit.shutdownActorSystem(system1);
}
@Test
}
- private static class TestShardPropsCreator implements ShardPropsCreator {
- ShardIdentifier shardId;
- Map<String, String> peerAddresses;
- SchemaContext schemaContext;
- DatastoreContext datastoreContext;
-
- @Override
- public Props newProps(ShardIdentifier shardId, Map<String, String> peerAddresses,
- DatastoreContext datastoreContext, SchemaContext schemaContext) {
- this.shardId = shardId;
- this.peerAddresses = peerAddresses;
- this.schemaContext = schemaContext;
- this.datastoreContext = datastoreContext;
- return Shard.props(shardId, peerAddresses, datastoreContext, schemaContext);
- }
-
- }
-
private static class TestShardManager extends ShardManager {
private final CountDownLatch recoveryComplete = new CountDownLatch(1);
TestShardManager(String shardMrgIDSuffix) {
super(new MockClusterWrapper(), new MockConfiguration(),
- DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build(), ready,
- new PrimaryShardInfoFutureCache());
+ newDatastoreContextFactory(DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build()),
+ ready, new PrimaryShardInfoFutureCache());
}
@Override
private final String name;
protected ForwardingShardManager(ClusterWrapper cluster, Configuration configuration,
- DatastoreContext datastoreContext, CountDownLatch waitTillReadyCountdownLatch, String name,
+ DatastoreContextFactory factory, CountDownLatch waitTillReadyCountdownLatch, String name,
ActorRef shardActor, PrimaryShardInfoFutureCache primaryShardInfoCache) {
- super(cluster, configuration, datastoreContext, waitTillReadyCountdownLatch, primaryShardInfoCache);
+ super(cluster, configuration, factory, waitTillReadyCountdownLatch, primaryShardInfoCache);
this.shardActor = shardActor;
this.name = name;
}
findPrimaryMessageReceived = new CountDownLatch(1);
}
}
+
+ private static class MockRespondActor extends MessageCollectorActor {
+
+ private volatile Object responseMsg;
+
+ public void updateResponse(Object response) {
+ responseMsg = response;
+ }
+
+ @Override
+ public void onReceive(Object message) throws Exception {
+ super.onReceive(message);
+ if (message instanceof AddServer) {
+ if (responseMsg != null) {
+ getSender().tell(responseMsg, getSelf());
+ responseMsg = null;
+ }
+ }
+ }
+ }
}