Would you hook into the Kafka Listener lifecycle via KafkaListenerEndpointRegistry or explicit polling through KafkaConsumer?

To manage the lifecycle of Kafka Listeners in Spring Kafka, KafkaListenerEndpointRegistry is most commonly used. It allows programmatically starting, stopping, and restarting listeners, managing their state without the need to work directly with low-level APIs.

Using KafkaListenerEndpointRegistry is convenient when you need to dynamically control listeners, for example, enabling or disabling them based on an event or configuration.

Explicit polling via KafkaConsumer provides full control over the message reading process but requires manual management of threads, commits, and error handling, which complicates the code and reduces convenience.

If the goal is to integrate into a Spring application and leverage the framework's advantages, it is better to choose KafkaListenerEndpointRegistry. However, if fine control or custom processing logic is needed, you can use explicit KafkaConsumer with polling.

Example of using KafkaListenerEndpointRegistry:

@Autowired
private KafkaListenerEndpointRegistry registry;

// Stop the listener
registry.getListenerContainer("myListenerId").stop();

// Start the listener
registry.getListenerContainer("myListenerId").start();

Thus, for most cases, it is better to control the Kafka Listener lifecycle through KafkaListenerEndpointRegistry.