[test] 메서드 실행 시간 측정 AOP 구현

src/main/java/gdsc/cau/puangbe/common/annotation/ExeTimer.java

@@ -0,0 +1,11 @@
+package gdsc.cau.puangbe.common.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target({ElementType.METHOD, ElementType.ANNOTATION_TYPE})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface ExeTimer {
+}

src/main/java/gdsc/cau/puangbe/common/util/ExecutionTimer.java

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+package gdsc.cau.puangbe.common.util;
+
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Pointcut;
+import org.aspectj.lang.reflect.MethodSignature;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StopWatch;
+
+@Slf4j
+@Aspect
+@Component
+public class ExecutionTimer {
+    // 조인포인트를 어노테이션으로 설정
+    @Pointcut("@annotation(gdsc.cau.puangbe.common.annotation.ExeTimer)")
+    private void timer(){};
+
+    // 메서드 실행 전,후로 시간을 공유해야 하기 때문
+    @Around("timer()")
+    public void AssumeExecutionTime(ProceedingJoinPoint joinPoint) throws Throwable {
+
+        StopWatch stopWatch = new StopWatch();
+
+        stopWatch.start();
+        joinPoint.proceed(); // 조인포인트의 메서드 실행
+        stopWatch.stop();
+
+        long totalTimeMillis = stopWatch.getTotalTimeMillis();
+
+        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
+        String methodName = signature.getMethod().getName();
+
+        log.info("실행 메서드: {}, 실행시간 = {}ms", methodName, totalTimeMillis);
+    }
+}