#

Junjie

9 天以前 8280c9eee52dd9fa3501305dfd4d1cab1564a73b

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
package com.zy.common.config;
 
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
 
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
 
@Component
@Aspect
@Slf4j
@Order(Ordered.LOWEST_PRECEDENCE)
@ConditionalOnProperty(prefix = "perf.methodTiming", name = "enabled", havingValue = "true")
public class MethodTimingAspect {
 
    @Value("${perf.methodTiming.thresholdMs:50}")
    private long thresholdMs;
 
    @Value("${perf.methodTiming.sampleRate:1.0}")
    private double sampleRate;
 
    @Around("execution(public * com.zy.core..*(..))")
    public Object timeCorePublicMethods(ProceedingJoinPoint joinPoint) throws Throwable {
        if (sampleRate < 1.0d && ThreadLocalRandom.current().nextDouble() > sampleRate) {
            return joinPoint.proceed();
        }
 
        long startNs = System.nanoTime();
        try {
            return joinPoint.proceed();
        } finally {
            long costMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);
            if (costMs >= thresholdMs) {
                log.warn("SLOW {} took {} ms (thread={})", joinPoint.getSignature().toShortString(), costMs, Thread.currentThread().getName());
            }
        }
    }
}