How @Counted works in spring boot?

Question

How @Counted works? I have added @Counted annotation on my method in Controller and expecting to see how many hits are coming to the controller. But i cannot see metrics added onto the url http://localhost:8080/actuator/prometheus.

 @Counted(value = "counted.success.test",description = "testCounter")

Can you please provide what all configuration you did for prometheus to divert all the stats to the actuator? Are you getting the key in actuator or not? — Yogesh Prajapati, Feb 18 '21 at 08:19

score 9 · Accepted Answer · answered Feb 18 '21 at 15:16

9

You need to add a CountedAspect as a bean, then the metrics are created when you call the method:

@Configuration
@EnableAspectJAutoProxy(proxyTargetClass = true)
public class Config {

    @Bean
    CountedAspect countedAspect(MeterRegistry registry) {
        return new CountedAspect(registry);
    }

(Can't remember why we added the @EnableAspectJAutoProxy(proxyTargetClass = true))

Though that that kind of instumentation is not prefect, the labels class and method will change as soon as you refactor your code and your Grafana dashboard might not work any longer.

answered Feb 18 '21 at 15:16

Jens Baitinger

449
2
8

Added bean of CountedAspect and it worked. @Bean public CountedAspect countedAspect(MeterRegistry meterRegistry) { return new CountedAspect(meterRegistry); } – Reema Joshi Feb 19 '21 at 11:28
I also had to add this dependeny spring-boot-starter-aop – Gabriel Aramburu Aug 08 '22 at 14:04

How @Counted works in spring boot?

1 Answers1