Package io.smallrye.reactive.messaging.kafka

Interface KafkaClientService

All Known Implementing Classes:
KafkaClientServiceImpl
@Experimental("experimental api") public interface KafkaClientService

  • Method Details

    • getConsumer

      default <K, V> KafkaConsumer<K,V> getConsumer(String channel)
      Gets the managed Kafka Consumer for the given channel. This method returns the reactive consumer.

      Be aware that most actions requires to be run on the Kafka polling thread. You can schedule actions using:

      getConsumer(channel).runOnPollingThread(c -> { ... })

      You can retrieve the low-level client using the KafkaConsumer.unwrap() method.

      Type Parameters:
      K - the type of the key
      V - the type of the value
      Parameters:
      channel - the channel, must not be null
      Returns:
      the consumer, null if not found

    • getConsumers

      <K, V> List<KafkaConsumer<K,V>> getConsumers(String channel)
      Gets the list of managed Kafka Consumer for the given channel. This method returns a reactive consumers, in the order of creation for multi-consumer channels.

      Type Parameters:
      K - the type of the key
      V - the type of the value
      Parameters:
      channel - the channel, must not be null
      Returns:
      the list of consumers, empty list if not found

    • getProducer

      <K, V> KafkaProducer<K,V> getProducer(String channel)
      Gets the managed Kafka Producer for the given channel. This method returns the reactive producer.

      Be aware that most actions require to be run on the Kafka sending thread. You can schedule actions using:

      getProducer(channel).runOnSendingThread(c -> { ... })

      You can retrieve the low-level client using the KafkaProducer.unwrap() method.

      Type Parameters:
      K - the type of the key
      V - the type of the value
      Parameters:
      channel - the channel, must not be null
      Returns:
      the producer, null if not found

    • getConsumerChannels

      Set<String> getConsumerChannels()
      Get the names of all the Kafka incoming channels managed by this connector.
      Returns:
      the names of the Kafka consumer incoming channels.

    • getProducerChannels

      Set<String> getProducerChannels()
      Get the names of all the Kafka outgoing channels managed by this connector.
      Returns:
      the names of the Kafka producer outgoing channels.