Why CounterService fails to count the times a method was invoked? - spring-boot

Question

I am using spring AOP and spring boot CounterService to record the times of invocation for a specific method. Each time I visit the target url, the countServiceInvoke would be executed, but the output metrics value will always be 1. "gauge.servo.string_com.yirendai.oss.environment.admin.controller.restcontrollertest.test()": 1.
I want to know why this counter failed? Thanks. The util class is like bellow:
#Aspect
#Component
public class ServiceMonitor {
#Autowired
private CounterService counterService;
#Before("execution(* com.yirendai.oss.environment.admin.controller.*.*(..))")
public void countServiceInvoke(JoinPoint joinPoint) {
System.out.println("##################" + joinPoint.getSignature());
counterService.increment(joinPoint.getSignature() + "");
}
}

Answer 1

I have read the source code of the implemented class of CounterService, key should be started with "meter." in order to correctly counted.
private void incrementInternal(String name, long value) {
String strippedName = stripMetricName(name);
if (name.startsWith("status.")) {
// drop this metric since we are capturing it already with
// ServoHandlerInterceptor,
// and we are able to glean more information like exceptionType from that
// mechanism than what
// boot provides us
}
else if (name.startsWith("meter.")) {
BasicCounter counter = counters.get(strippedName);
if (counter == null) {
counter = new BasicCounter(MonitorConfig.builder(strippedName).build());
counters.put(strippedName, counter);
registry.register(counter);
}
counter.increment(value);
}
else {
LongGauge gauge = longGauges.get(strippedName);
if (gauge == null) {
gauge = new LongGauge(MonitorConfig.builder(strippedName).build());
longGauges.put(strippedName, gauge);
registry.register(gauge);
}
gauge.set(value);
}
}