Examples with ConsumerMetadata org.apache.kafka.clients.consumer.internals.ConsumerMetadata used on opensource projects

Example 6 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testRegexSubscription.

@Test
public void testRegexSubscription() {
    String unmatchedTopic = "unmatched";
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    Map<String, Integer> partitionCounts = new HashMap<>();
    partitionCounts.put(topic, 1);
    partitionCounts.put(unmatchedTopic, 1);
    topicIds.put(unmatchedTopic, Uuid.randomUuid());
    initMetadata(client, partitionCounts);
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupInstanceId);
    prepareRebalance(client, node, singleton(topic), assignor, singletonList(tp0), null);
    consumer.subscribe(Pattern.compile(topic), getConsumerRebalanceListener(consumer));
    client.prepareMetadataUpdate(RequestTestUtils.metadataUpdateWithIds(1, partitionCounts, topicIds));
    consumer.updateAssignmentMetadataIfNeeded(time.timer(Long.MAX_VALUE));
    assertEquals(singleton(topic), consumer.subscription());
    assertEquals(singleton(tp0), consumer.assignment());
    consumer.close(Duration.ofMillis(0));
}

Example 7 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testClosingConsumerUnregistersConsumerMetrics.

@Test
public void testClosingConsumerUnregistersConsumerMetrics() {
    Time time = new MockTime(1L);
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, new RoundRobinAssignor(), true, groupInstanceId);
    consumer.subscribe(singletonList(topic));
    assertTrue(consumerMetricPresent(consumer, "last-poll-seconds-ago"));
    assertTrue(consumerMetricPresent(consumer, "time-between-poll-avg"));
    assertTrue(consumerMetricPresent(consumer, "time-between-poll-max"));
    consumer.close();
    assertFalse(consumerMetricPresent(consumer, "last-poll-seconds-ago"));
    assertFalse(consumerMetricPresent(consumer, "time-between-poll-avg"));
    assertFalse(consumerMetricPresent(consumer, "time-between-poll-max"));
}

Example 8 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testResetUsingAutoResetPolicy.

@Test
public void testResetUsingAutoResetPolicy() {
    SubscriptionState subscription = new SubscriptionState(new LogContext(), OffsetResetStrategy.LATEST);
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupId, groupInstanceId, false);
    consumer.assign(singletonList(tp0));
    client.prepareResponseFrom(FindCoordinatorResponse.prepareResponse(Errors.NONE, groupId, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, -1L), Errors.NONE), coordinator);
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp0, 50L)));
    consumer.poll(Duration.ZERO);
    assertEquals(50L, consumer.position(tp0));
}

Example 9 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testManualAssignmentChangeWithAutoCommitDisabled.

@Test
public void testManualAssignmentChangeWithAutoCommitDisabled() {
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    Map<String, Integer> tpCounts = new HashMap<>();
    tpCounts.put(topic, 1);
    tpCounts.put(topic2, 1);
    initMetadata(client, tpCounts);
    Node node = metadata.fetch().nodes().get(0);
    ConsumerPartitionAssignor assignor = new RangeAssignor();
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, false, groupInstanceId);
    // lookup coordinator
    client.prepareResponseFrom(FindCoordinatorResponse.prepareResponse(Errors.NONE, groupId, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // manual assignment
    consumer.assign(singleton(tp0));
    consumer.seekToBeginning(singleton(tp0));
    // fetch offset for one topic
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, 0L), Errors.NONE), coordinator);
    assertEquals(0, consumer.committed(Collections.singleton(tp0)).get(tp0).offset());
    // verify that assignment immediately changes
    assertEquals(consumer.assignment(), singleton(tp0));
    // there shouldn't be any need to lookup the coordinator or fetch committed offsets.
    // we just lookup the starting position and send the record fetch.
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp0, 10L)));
    client.prepareResponse(fetchResponse(tp0, 10L, 1));
    ConsumerRecords<String, String> records = consumer.poll(Duration.ofMillis(1));
    assertEquals(1, records.count());
    assertEquals(11L, consumer.position(tp0));
    // new manual assignment
    consumer.assign(singleton(t2p0));
    // verify that assignment immediately changes
    assertEquals(consumer.assignment(), singleton(t2p0));
    // the auto commit is disabled, so no offset commit request should be sent
    for (ClientRequest req : client.requests()) assertNotSame(req.requestBuilder().apiKey(), ApiKeys.OFFSET_COMMIT);
    client.requests().clear();
    consumer.close();
}

Example 10 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testSubscriptionOnInvalidTopic.

@Test
public void testSubscriptionOnInvalidTopic() {
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Cluster cluster = metadata.fetch();
    // Invalid topic name due to space
    String invalidTopicName = "topic abc";
    List<MetadataResponse.TopicMetadata> topicMetadata = new ArrayList<>();
    topicMetadata.add(new MetadataResponse.TopicMetadata(Errors.INVALID_TOPIC_EXCEPTION, invalidTopicName, false, Collections.emptyList()));
    MetadataResponse updateResponse = RequestTestUtils.metadataResponse(cluster.nodes(), cluster.clusterResource().clusterId(), cluster.controller().id(), topicMetadata);
    client.prepareMetadataUpdate(updateResponse);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupInstanceId);
    consumer.subscribe(singleton(invalidTopicName), getConsumerRebalanceListener(consumer));
    assertThrows(InvalidTopicException.class, () -> consumer.poll(Duration.ZERO));
}