Package org.apache.kafka.coordinator.group.api.assignor

Interface SubscribedTopicDescriber

public interface SubscribedTopicDescriber
The subscribed topic describer is used by the PartitionAssignor to obtain topic and partition metadata of the subscribed topics.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    numPartitions(org.apache.kafka.common.Uuid topicId)
    The number of partitions for the given topic Id.
    Set<String>
    racksForPartition(org.apache.kafka.common.Uuid topicId, int partition)
    Returns all the available racks associated with the replicas of the given partition.

  • Method Details

    • numPartitions

      int numPartitions(org.apache.kafka.common.Uuid topicId)
      The number of partitions for the given topic Id.
      Parameters:
      topicId - Uuid corresponding to the topic.
      Returns:
      The number of partitions corresponding to the given topic Id, or -1 if the topic id does not exist.

    • racksForPartition

      Set<String> racksForPartition(org.apache.kafka.common.Uuid topicId, int partition)
      Returns all the available racks associated with the replicas of the given partition.
      Parameters:
      topicId - Uuid corresponding to the partition's topic.
      partition - Partition Id within topic.
      Returns:
      The set of racks corresponding to the replicas of the topic's partition. If the topic Id does not exist, an empty set is returned.