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Adding Message Filter for Listeners

Pragya Keshap answered on February 11, 2023 Popularity 1/10 Helpfulness 1/10

answer Adding Message Filter for Listeners

Adding Message Filter for Listeners

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We can configure listeners to consume specific message content by adding a custom filter. This can be done by setting a RecordFilterStrategy to the KafkaListenerContainerFactory:

We can then configure a listener to use this container factory:

@Bean
public ConcurrentKafkaListenerContainerFactory<String, String>
  filterKafkaListenerContainerFactory() {

    ConcurrentKafkaListenerContainerFactory<String, String> factory =
      new ConcurrentKafkaListenerContainerFactory<>();
    factory.setConsumerFactory(consumerFactory());
    factory.setRecordFilterStrategy(
      record -> record.value().contains("World"));
    return factory;
}
@KafkaListener(
  topics = "topicName", 
  containerFactory = "filterKafkaListenerContainerFactory")
public void listenWithFilter(String message) {
    System.out.println("Received Message in filtered listener: " + message);
}

https://www.baeldung.com/spring-kafka#4-adding-message-filter-for-listeners

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: filter java listeners message

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Contributed on Feb 11 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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