Examples with AbstractRequest org.apache.kafka.common.requests.AbstractRequest used on opensource projects

Example 6 with AbstractRequest

use of org.apache.kafka.common.requests.AbstractRequest in project kafka by apache.

the class AbstractCoordinatorTest method prepareFirstHeartbeat.

private AtomicBoolean prepareFirstHeartbeat() {
    final AtomicBoolean heartbeatReceived = new AtomicBoolean(false);
    mockClient.prepareResponse(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            boolean isHeartbeatRequest = body instanceof HeartbeatRequest;
            if (isHeartbeatRequest)
                heartbeatReceived.set(true);
            return isHeartbeatRequest;
        }
    }, heartbeatResponse(Errors.UNKNOWN));
    return heartbeatReceived;
}

Example 7 with AbstractRequest

use of org.apache.kafka.common.requests.AbstractRequest in project kafka by apache.

the class AbstractCoordinatorTest method testWakeupAfterJoinGroupReceivedExternalCompletion.

@Test
public void testWakeupAfterJoinGroupReceivedExternalCompletion() throws Exception {
    mockClient.prepareResponse(groupCoordinatorResponse(node, Errors.NONE));
    mockClient.prepareResponse(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            boolean isJoinGroupRequest = body instanceof JoinGroupRequest;
            if (isJoinGroupRequest)
                // wakeup after the request returns
                consumerClient.wakeup();
            return isJoinGroupRequest;
        }
    }, joinGroupFollowerResponse(1, "memberId", "leaderId", Errors.NONE));
    mockClient.prepareResponse(syncGroupResponse(Errors.NONE));
    AtomicBoolean heartbeatReceived = prepareFirstHeartbeat();
    try {
        coordinator.ensureActiveGroup();
        fail("Should have woken up from ensureActiveGroup()");
    } catch (WakeupException e) {
    }
    assertEquals(1, coordinator.onJoinPrepareInvokes);
    assertEquals(0, coordinator.onJoinCompleteInvokes);
    assertFalse(heartbeatReceived.get());
    // the join group completes in this poll()
    consumerClient.poll(0);
    coordinator.ensureActiveGroup();
    assertEquals(1, coordinator.onJoinPrepareInvokes);
    assertEquals(1, coordinator.onJoinCompleteInvokes);
    awaitFirstHeartbeat(heartbeatReceived);
}

Example 8 with AbstractRequest

use of org.apache.kafka.common.requests.AbstractRequest in project kafka by apache.

the class ConsumerCoordinatorTest method testMaybeLeaveGroup.

@Test
public void testMaybeLeaveGroup() {
    final String consumerId = "consumer";
    subscriptions.subscribe(singleton(topic1), rebalanceListener);
    client.prepareResponse(groupCoordinatorResponse(node, Errors.NONE));
    coordinator.ensureCoordinatorReady();
    client.prepareResponse(joinGroupFollowerResponse(1, consumerId, "leader", Errors.NONE));
    client.prepareResponse(syncGroupResponse(singletonList(t1p), Errors.NONE));
    coordinator.joinGroupIfNeeded();
    final AtomicBoolean received = new AtomicBoolean(false);
    client.prepareResponse(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            received.set(true);
            LeaveGroupRequest leaveRequest = (LeaveGroupRequest) body;
            return leaveRequest.memberId().equals(consumerId) && leaveRequest.groupId().equals(groupId);
        }
    }, new LeaveGroupResponse(Errors.NONE));
    coordinator.maybeLeaveGroup();
    assertTrue(received.get());
    AbstractCoordinator.Generation generation = coordinator.generation();
    assertNull(generation);
}

Example 9 with AbstractRequest

use of org.apache.kafka.common.requests.AbstractRequest in project kafka by apache.

the class ConsumerCoordinatorTest method testUpdateMetadataDuringRebalance.

@Test
public void testUpdateMetadataDuringRebalance() {
    final String topic1 = "topic1";
    final String topic2 = "topic2";
    TopicPartition tp1 = new TopicPartition(topic1, 0);
    TopicPartition tp2 = new TopicPartition(topic2, 0);
    final String consumerId = "leader";
    List<String> topics = Arrays.asList(topic1, topic2);
    subscriptions.subscribe(new HashSet<>(topics), rebalanceListener);
    metadata.setTopics(topics);
    // we only have metadata for one topic initially
    metadata.update(TestUtils.singletonCluster(topic1, 1), Collections.<String>emptySet(), time.milliseconds());
    client.prepareResponse(groupCoordinatorResponse(node, Errors.NONE));
    coordinator.ensureCoordinatorReady();
    // prepare initial rebalance
    Map<String, List<String>> memberSubscriptions = Collections.singletonMap(consumerId, topics);
    partitionAssignor.prepare(Collections.singletonMap(consumerId, Collections.singletonList(tp1)));
    client.prepareResponse(joinGroupLeaderResponse(1, consumerId, memberSubscriptions, Errors.NONE));
    client.prepareResponse(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            SyncGroupRequest sync = (SyncGroupRequest) body;
            if (sync.memberId().equals(consumerId) && sync.generationId() == 1 && sync.groupAssignment().containsKey(consumerId)) {
                // trigger the metadata update including both topics after the sync group request has been sent
                Map<String, Integer> topicPartitionCounts = new HashMap<>();
                topicPartitionCounts.put(topic1, 1);
                topicPartitionCounts.put(topic2, 1);
                metadata.update(TestUtils.singletonCluster(topicPartitionCounts), Collections.<String>emptySet(), time.milliseconds());
                return true;
            }
            return false;
        }
    }, syncGroupResponse(Collections.singletonList(tp1), Errors.NONE));
    // the metadata update should trigger a second rebalance
    client.prepareResponse(joinGroupLeaderResponse(2, consumerId, memberSubscriptions, Errors.NONE));
    client.prepareResponse(syncGroupResponse(Arrays.asList(tp1, tp2), Errors.NONE));
    coordinator.poll(time.milliseconds());
    assertFalse(coordinator.needRejoin());
    assertEquals(new HashSet<>(Arrays.asList(tp1, tp2)), subscriptions.assignedPartitions());
}

Example 10 with AbstractRequest

use of org.apache.kafka.common.requests.AbstractRequest in project kafka by apache.

the class ConsumerCoordinatorTest method testLeaveGroupOnClose.

@Test
public void testLeaveGroupOnClose() {
    final String consumerId = "consumer";
    subscriptions.subscribe(singleton(topic1), rebalanceListener);
    client.prepareResponse(groupCoordinatorResponse(node, Errors.NONE));
    coordinator.ensureCoordinatorReady();
    client.prepareResponse(joinGroupFollowerResponse(1, consumerId, "leader", Errors.NONE));
    client.prepareResponse(syncGroupResponse(singletonList(t1p), Errors.NONE));
    coordinator.joinGroupIfNeeded();
    final AtomicBoolean received = new AtomicBoolean(false);
    client.prepareResponse(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            received.set(true);
            LeaveGroupRequest leaveRequest = (LeaveGroupRequest) body;
            return leaveRequest.memberId().equals(consumerId) && leaveRequest.groupId().equals(groupId);
        }
    }, new LeaveGroupResponse(Errors.NONE));
    coordinator.close(0);
    assertTrue(received.get());
}