Spring 集成，基于时间戳从 Kafka 主题读取消息

Question

在使用 Spring kafka时，我能够使用以下代码根据时间戳读取主题中的消息 -

                ConsumerRecords<String, String> records = consumer.poll(100);
                if (flag) {
                    Map<TopicPartition, Long> query = new HashMap<>();
                    query.put(new TopicPartition(kafkaTopic, 0), millisecondsFromEpochToReplay);
                    Map<TopicPartition, OffsetAndTimestamp> result = consumer.offsetsForTimes(query);
                    if(result != null)
                    {
                        records = ConsumerRecords.empty();
                    }
                    result.entrySet().stream()
                            .forEach(entry -> consumer.seek(entry.getKey(), entry.getValue().offset()));
                    flag = false;
                }

如何使用弹簧集成DSL - 与KafkaMessageDrivenChannelAdapter实现相同的功能？我们如何根据时间戳设置集成流并从主题读取消息？

Answer 1

使用ConsumerAwareRebalanceListener配置适配器的侦听器容器，并在分配分区时执行查找/查找。

编辑

使用 Spring 引导(但您可以通过创建容器的方式配置容器(...

spring.kafka.consumer.enable-auto-commit=false
spring.kafka.consumer.auto-offset-reset=earliest
spring.kafka.consumer.group-id=so54664761

和

@SpringBootApplication
public class So54664761Application {
    public static void main(String[] args) {
        SpringApplication.run(So54664761Application.class, args);
    }
    @Bean
    public ApplicationRunner runner(KafkaTemplate<String, String> template) {
        return args -> template.send("so54664761", "foo");
    }
    @Bean
    public NewTopic topic() {
        return new NewTopic("so54664761", 1, (short) 1);
    }
    @Bean
    public IntegrationFlow flow(ConcurrentKafkaListenerContainerFactory<String, String> containerFactory) {
        ConcurrentMessageListenerContainer<String, String> container = container(containerFactory);
        return IntegrationFlows.from(new KafkaMessageDrivenChannelAdapter<>(container))
                .handle(System.out::println)
                .get();
    }
    @Bean
    public ConcurrentMessageListenerContainer<String, String> container(
            ConcurrentKafkaListenerContainerFactory<String, String> containerFactory) {
        ConcurrentMessageListenerContainer<String, String> container = containerFactory.createContainer("so54664761");
        container.getContainerProperties().setConsumerRebalanceListener(new ConsumerAwareRebalanceListener() {
            @Override
            public void onPartitionsAssigned(Consumer<?, ?> consumer, Collection<TopicPartition> partitions) {
                System.out.println("Partitions assigned - do the lookup/seeks here");
            }
        });
        return container;
    }
}

和

Partitions assigned - do the lookup/seeks here
GenericMessage [payload=foo, headers={kafka_offset=0, kafka_consumer=org.apache.kafka.clients.consumer.KafkaConsumer@2f5b2297, kafka_timestampType=CREATE_TIME, kafka_receivedMessageKey=null, kafka_receivedPartitionId=0, kafka_receivedTopic=so54664761, kafka_receivedTimestamp=1550241100112}]