@Service

public class PurchaseEventConsumer implements StreamListener<String, ObjectRecord<String, Product>> {

​

    private AtomicInteger atomicInteger = new AtomicInteger(0);

​

    @Autowired

    private ReactiveRedisTemplate<String, String> redisTemplate;

​

    @Override

    @SneakyThrows

    public void onMessage(ObjectRecord<String, Product> record) {

        System.out.println(

                InetAddress.getLocalHost().getHostName() + " - consumed :" +

                record.getValue()

        );

        this.redisTemplate

                .opsForZSet()

                .incrementScore("revenue", record.getValue().getCategory().toString(), record.getValue().getPrice())

                .subscribe();

        atomicInteger.incrementAndGet();

    }

​

    @Scheduled(fixedRate = 10000)

    public void showPublishedEventsSoFar(){

        System.out.println(

                "Total Consumed :: " + atomicInteger.get()

        );

    }

​

}