Examples with LATEST_SUPPORTED_VERSION org.apache.kafka.streams.processor.internals.assignment.StreamsAssignmentProtocolVersions.LATEST_SUPPORTED_VERSION used on opensource projects

Example 1 with LATEST_SUPPORTED_VERSION

use of org.apache.kafka.streams.processor.internals.assignment.StreamsAssignmentProtocolVersions.LATEST_SUPPORTED_VERSION in project kafka by apache.

the class StreamsPartitionAssignor method subscriptionUserData.

@Override
public ByteBuffer subscriptionUserData(final Set<String> topics) {
    // Adds the following information to subscription
    // 1. Client UUID (a unique id assigned to an instance of KafkaStreams)
    // 2. Map from task id to its overall lag
    // 3. Unique Field to ensure a rebalance when a thread rejoins by forcing the user data to be different
    handleRebalanceStart(topics);
    uniqueField++;
    final Set<String> currentNamedTopologies = taskManager.topologyMetadata().namedTopologiesView();
    // If using NamedTopologies, filter out any that are no longer recognized/have been removed
    final Map<TaskId, Long> taskOffsetSums = taskManager.topologyMetadata().hasNamedTopologies() ? filterMap(taskManager.getTaskOffsetSums(), t -> currentNamedTopologies.contains(t.getKey().topologyName())) : taskManager.getTaskOffsetSums();
    return new SubscriptionInfo(usedSubscriptionMetadataVersion, LATEST_SUPPORTED_VERSION, taskManager.processId(), userEndPoint, taskOffsetSums, uniqueField, assignmentErrorCode.get()).encode();
}