Examples with RegisterDataTreeNotificationListenerReply org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply used on opensource projects

Example 11 with RegisterDataTreeNotificationListenerReply

use of org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply in project controller by opendaylight.

the class ShardTest method testChangeListenerNotifiedWhenNotTheLeaderOnRegistration.

@SuppressWarnings("serial")
@Test
public void testChangeListenerNotifiedWhenNotTheLeaderOnRegistration() throws Exception {
    // This test tests the timing window in which a change listener is registered before the
    // shard becomes the leader. We verify that the listener is registered and notified of the
    // existing data when the shard becomes the leader.
    // For this test, we want to send the RegisterChangeListener message after the shard
    // has recovered from persistence and before it becomes the leader. So we subclass
    // Shard to override onReceiveCommand and, when the first ElectionTimeout is received,
    // we know that the shard has been initialized to a follower and has started the
    // election process. The following 2 CountDownLatches are used to coordinate the
    // ElectionTimeout with the sending of the RegisterChangeListener message.
    final CountDownLatch onFirstElectionTimeout = new CountDownLatch(1);
    final CountDownLatch onChangeListenerRegistered = new CountDownLatch(1);
    final Creator<Shard> creator = new Creator<Shard>() {

        boolean firstElectionTimeout = true;

        @Override
        public Shard create() throws Exception {
            // it does do a persist)
            return new Shard(newShardBuilder()) {

                @Override
                public void handleCommand(final Object message) {
                    if (message instanceof ElectionTimeout && firstElectionTimeout) {
                        // Got the first ElectionTimeout. We don't forward it to the
                        // base Shard yet until we've sent the RegisterChangeListener
                        // message. So we signal the onFirstElectionTimeout latch to tell
                        // the main thread to send the RegisterChangeListener message and
                        // start a thread to wait on the onChangeListenerRegistered latch,
                        // which the main thread signals after it has sent the message.
                        // After the onChangeListenerRegistered is triggered, we send the
                        // original ElectionTimeout message to proceed with the election.
                        firstElectionTimeout = false;
                        final ActorRef self = getSelf();
                        new Thread(() -> {
                            Uninterruptibles.awaitUninterruptibly(onChangeListenerRegistered, 5, TimeUnit.SECONDS);
                            self.tell(message, self);
                        }).start();
                        onFirstElectionTimeout.countDown();
                    } else {
                        super.handleCommand(message);
                    }
                }
            };
        }
    };
    setupInMemorySnapshotStore();
    final YangInstanceIdentifier path = TestModel.TEST_PATH;
    final MockDataChangeListener listener = new MockDataChangeListener(1);
    final ActorRef dclActor = actorFactory.createActor(DataChangeListener.props(listener, path), "testRegisterChangeListenerWhenNotLeaderInitially-DataChangeListener");
    final TestActorRef<Shard> shard = actorFactory.createTestActor(Props.create(new DelegatingShardCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId()), "testRegisterChangeListenerWhenNotLeaderInitially");
    new ShardTestKit(getSystem()) {

        {
            // Wait until the shard receives the first ElectionTimeout
            // message.
            assertEquals("Got first ElectionTimeout", true, onFirstElectionTimeout.await(5, TimeUnit.SECONDS));
            // Now send the RegisterChangeListener and wait for the reply.
            shard.tell(new RegisterChangeListener(path, dclActor, AsyncDataBroker.DataChangeScope.SUBTREE, false), getRef());
            final RegisterDataTreeNotificationListenerReply reply = expectMsgClass(duration("5 seconds"), RegisterDataTreeNotificationListenerReply.class);
            assertNotNull("getListenerRegistrationPath", reply.getListenerRegistrationPath());
            // Sanity check - verify the shard is not the leader yet.
            shard.tell(FindLeader.INSTANCE, getRef());
            final FindLeaderReply findLeadeReply = expectMsgClass(duration("5 seconds"), FindLeaderReply.class);
            assertFalse("Expected the shard not to be the leader", findLeadeReply.getLeaderActor().isPresent());
            // Signal the onChangeListenerRegistered latch to tell the
            // thread above to proceed
            // with the election process.
            onChangeListenerRegistered.countDown();
            // Wait for the shard to become the leader and notify our
            // listener with the existing
            // data in the store.
            listener.waitForChangeEvents(path);
        }
    };
}

Example 12 with RegisterDataTreeNotificationListenerReply

use of org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply in project controller by opendaylight.

the class ShardTest method testDataTreeChangeListenerNotifiedWhenNotTheLeaderOnRegistration.

@SuppressWarnings("serial")
@Test
public void testDataTreeChangeListenerNotifiedWhenNotTheLeaderOnRegistration() throws Exception {
    final CountDownLatch onFirstElectionTimeout = new CountDownLatch(1);
    final CountDownLatch onChangeListenerRegistered = new CountDownLatch(1);
    final Creator<Shard> creator = new Creator<Shard>() {

        boolean firstElectionTimeout = true;

        @Override
        public Shard create() throws Exception {
            return new Shard(newShardBuilder()) {

                @Override
                public void handleCommand(final Object message) {
                    if (message instanceof ElectionTimeout && firstElectionTimeout) {
                        firstElectionTimeout = false;
                        final ActorRef self = getSelf();
                        new Thread(() -> {
                            Uninterruptibles.awaitUninterruptibly(onChangeListenerRegistered, 5, TimeUnit.SECONDS);
                            self.tell(message, self);
                        }).start();
                        onFirstElectionTimeout.countDown();
                    } else {
                        super.handleCommand(message);
                    }
                }
            };
        }
    };
    setupInMemorySnapshotStore();
    final YangInstanceIdentifier path = TestModel.TEST_PATH;
    final MockDataTreeChangeListener listener = new MockDataTreeChangeListener(1);
    final ActorRef dclActor = actorFactory.createActor(DataTreeChangeListenerActor.props(listener, path), "testDataTreeChangeListenerNotifiedWhenNotTheLeaderOnRegistration-DataChangeListener");
    final TestActorRef<Shard> shard = actorFactory.createTestActor(Props.create(new DelegatingShardCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId()), "testDataTreeChangeListenerNotifiedWhenNotTheLeaderOnRegistration");
    new ShardTestKit(getSystem()) {

        {
            assertEquals("Got first ElectionTimeout", true, onFirstElectionTimeout.await(5, TimeUnit.SECONDS));
            shard.tell(new RegisterDataTreeChangeListener(path, dclActor, false), getRef());
            final RegisterDataTreeNotificationListenerReply reply = expectMsgClass(duration("5 seconds"), RegisterDataTreeNotificationListenerReply.class);
            assertNotNull("getListenerRegistratioznPath", reply.getListenerRegistrationPath());
            shard.tell(FindLeader.INSTANCE, getRef());
            final FindLeaderReply findLeadeReply = expectMsgClass(duration("5 seconds"), FindLeaderReply.class);
            assertFalse("Expected the shard not to be the leader", findLeadeReply.getLeaderActor().isPresent());
            onChangeListenerRegistered.countDown();
            // TODO: investigate why we do not receive data chage events
            listener.waitForChangeEvents();
        }
    };
}

Example 13 with RegisterDataTreeNotificationListenerReply

use of org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply in project controller by opendaylight.

the class ShardTest method testClusteredDataTreeChangeListenerWithDelayedRegistrationClosed.

@Test
public void testClusteredDataTreeChangeListenerWithDelayedRegistrationClosed() throws Exception {
    new ShardTestKit(getSystem()) {

        {
            final String testName = "testClusteredDataTreeChangeListenerWithDelayedRegistrationClosed";
            dataStoreContextBuilder.shardElectionTimeoutFactor(1000).customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
            final MockDataTreeChangeListener listener = new MockDataTreeChangeListener(0);
            final ActorRef dclActor = actorFactory.createActor(DataTreeChangeListenerActor.props(listener, TestModel.TEST_PATH), actorFactory.generateActorId(testName + "-DataTreeChangeListener"));
            setupInMemorySnapshotStore();
            final TestActorRef<Shard> shard = actorFactory.createTestActor(newShardBuilder().props().withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId(testName + "-shard"));
            waitUntilNoLeader(shard);
            shard.tell(new RegisterDataTreeChangeListener(TestModel.TEST_PATH, dclActor, true), getRef());
            final RegisterDataTreeNotificationListenerReply reply = expectMsgClass(duration("5 seconds"), RegisterDataTreeNotificationListenerReply.class);
            assertNotNull("getListenerRegistrationPath", reply.getListenerRegistrationPath());
            final ActorSelection regActor = getSystem().actorSelection(reply.getListenerRegistrationPath());
            regActor.tell(CloseDataTreeNotificationListenerRegistration.getInstance(), getRef());
            expectMsgClass(CloseDataTreeNotificationListenerRegistrationReply.class);
            shard.tell(DatastoreContext.newBuilderFrom(dataStoreContextBuilder.build()).customRaftPolicyImplementation(null).build(), ActorRef.noSender());
            listener.expectNoMoreChanges("Received unexpected change after close");
        }
    };
}

Example 14 with RegisterDataTreeNotificationListenerReply

use of org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply in project controller by opendaylight.

the class ShardTest method testRegisterDataTreeChangeListener.

@Test
public void testRegisterDataTreeChangeListener() throws Exception {
    new ShardTestKit(getSystem()) {

        {
            final TestActorRef<Shard> shard = actorFactory.createTestActor(newShardProps().withDispatcher(Dispatchers.DefaultDispatcherId()), "testRegisterDataTreeChangeListener");
            waitUntilLeader(shard);
            shard.tell(new UpdateSchemaContext(SchemaContextHelper.full()), ActorRef.noSender());
            final MockDataTreeChangeListener listener = new MockDataTreeChangeListener(1);
            final ActorRef dclActor = actorFactory.createActor(DataTreeChangeListenerActor.props(listener, TestModel.TEST_PATH), "testRegisterDataTreeChangeListener-DataTreeChangeListener");
            shard.tell(new RegisterDataTreeChangeListener(TestModel.TEST_PATH, dclActor, false), getRef());
            final RegisterDataTreeNotificationListenerReply reply = expectMsgClass(duration("3 seconds"), RegisterDataTreeNotificationListenerReply.class);
            final String replyPath = reply.getListenerRegistrationPath().toString();
            assertTrue("Incorrect reply path: " + replyPath, replyPath.matches("akka:\\/\\/test\\/user\\/testRegisterDataTreeChangeListener\\/\\$.*"));
            final YangInstanceIdentifier path = TestModel.TEST_PATH;
            writeToStore(shard, path, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
            listener.waitForChangeEvents();
        }
    };
}

Example 15 with RegisterDataTreeNotificationListenerReply

use of org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeNotificationListenerReply in project controller by opendaylight.

the class ShardTest method testClusteredDataChangeListenerRegistration.

@Test
public void testClusteredDataChangeListenerRegistration() throws Exception {
    new ShardTestKit(getSystem()) {

        {
            final String testName = "testClusteredDataChangeListenerRegistration";
            final ShardIdentifier followerShardID = ShardIdentifier.create("inventory", MemberName.forName(actorFactory.generateActorId(testName + "-follower")), "config");
            final ShardIdentifier leaderShardID = ShardIdentifier.create("inventory", MemberName.forName(actorFactory.generateActorId(testName + "-leader")), "config");
            final TestActorRef<Shard> followerShard = actorFactory.createTestActor(Shard.builder().id(followerShardID).datastoreContext(dataStoreContextBuilder.shardElectionTimeoutFactor(1000).build()).peerAddresses(Collections.singletonMap(leaderShardID.toString(), "akka://test/user/" + leaderShardID.toString())).schemaContextProvider(() -> SCHEMA_CONTEXT).props().withDispatcher(Dispatchers.DefaultDispatcherId()), followerShardID.toString());
            final TestActorRef<Shard> leaderShard = actorFactory.createTestActor(Shard.builder().id(leaderShardID).datastoreContext(newDatastoreContext()).peerAddresses(Collections.singletonMap(followerShardID.toString(), "akka://test/user/" + followerShardID.toString())).schemaContextProvider(() -> SCHEMA_CONTEXT).props().withDispatcher(Dispatchers.DefaultDispatcherId()), leaderShardID.toString());
            leaderShard.tell(TimeoutNow.INSTANCE, ActorRef.noSender());
            final String leaderPath = waitUntilLeader(followerShard);
            assertEquals("Shard leader path", leaderShard.path().toString(), leaderPath);
            final YangInstanceIdentifier path = TestModel.TEST_PATH;
            final MockDataChangeListener listener = new MockDataChangeListener(1);
            final ActorRef dclActor = actorFactory.createActor(DataChangeListener.props(listener, path), actorFactory.generateActorId(testName + "-DataChangeListener"));
            followerShard.tell(new RegisterChangeListener(path, dclActor, AsyncDataBroker.DataChangeScope.BASE, true), getRef());
            final RegisterDataTreeNotificationListenerReply reply = expectMsgClass(duration("5 seconds"), RegisterDataTreeNotificationListenerReply.class);
            assertNotNull("getListenerRegistrationPath", reply.getListenerRegistrationPath());
            writeToStore(followerShard, path, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
            listener.waitForChangeEvents();
        }
    };
}