import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
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.springframework.stereotype.Component;
import org.springframework.util.StopWatch;

@Aspect
@Component
public class LoggingAspect {

	private static final Logger LOGGER = LogManager.getLogger(LoggingAspect.class);

	@Around("execution(* com.demo.services..*(..)))")
	public Object profileAllMethods(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
		MethodSignature methodSignature = (MethodSignature) proceedingJoinPoint.getSignature();
		String className = methodSignature.getDeclaringType().getSimpleName();
		String methodName = methodSignature.getName();
		String[] parameterNames = methodSignature.getParameterNames();
		Object[] args = proceedingJoinPoint.getArgs();
		StringBuilder parameterInfo = new StringBuilder();
		for (int i = 0; i < parameterNames.length; i++) {
			parameterInfo.append("\n").append(parameterNames[i]).append(':').append(args[i]);
		}
		// beginning of the method
		LOGGER.info("beginning of the method - " + className + "." + methodName + " - parameters:" + parameterInfo);

		final StopWatch stopWatch = new StopWatch();

		// for calculating execution time
		stopWatch.start();
		Object result = proceedingJoinPoint.proceed();
		stopWatch.stop();

		// end of method
		LOGGER.info(
				"end of method - " + className + "." + methodName + " :: " + stopWatch.getTotalTimeMillis() + " ms");

		return result;
	}
}