Timed Annotation for measuring Java method execution time

build.gradle

    compile 'org.springframework:spring-aspects:4.1.8.RELEASE'
    compile 'org.springframework.boot:spring-boot-starter-aop:1.2.7.RELEASE'

Logger.java

package research.nomad;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class Logger {
    private static org.slf4j.Logger logger = LoggerFactory.getLogger(Logger.class);
    @Around("execution(* *(..)) && @annotation(research.nomad.MethodStats)")
    public Object log(ProceedingJoinPoint point) throws Throwable
    {
        long start = System.currentTimeMillis();
        Object result = point.proceed();
        logger.info("className={}, methodName={}, timeMs={},threadId={}",
                (point.getSignature()).getDeclaringTypeName(),
                ((MethodSignature) point.getSignature()).getMethod().getName(),
                System.currentTimeMillis() - start,
                Thread.currentThread().getId());
        return result;
    }
}

Timed.java

package research.nomad;/* Created at 2/22/20 by zhen */

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Timed {
}