Java tutorial
/* * Copyright (c) 2017. The Hyve and respective contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * * See the file LICENSE in the root of this repository. * */ package nl.thehyve.podium.common.aop.logging; import nl.thehyve.podium.common.config.PodiumConstants; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.AfterThrowing; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Pointcut; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.core.env.Environment; import java.util.Arrays; /** * Aspect for logging execution of service and repository Spring components. * * By default, it only runs with the "dev" profile. */ @Aspect public class LoggingAspect { private final Logger log = LoggerFactory.getLogger(this.getClass()); @Autowired private Environment env; /** * Pointcut that matches all repositories, services and Web REST endpoints. */ @Pointcut("within(nl.thehyve.podium.repository..*) || within(nl.thehyve.podium.service..*) || within(nl.thehyve.podium.web.rest..*)") public void loggingPointcut() { // Method is empty as this is just a Poincut, the implementations are in the advices. } /** * Advice that logs methods throwing exceptions. * @param joinPoint The binding joinpoint * @param e The thrown exception */ @AfterThrowing(pointcut = "loggingPointcut()", throwing = "e") public void logAfterThrowing(JoinPoint joinPoint, Throwable e) { if (env.acceptsProfiles(PodiumConstants.SPRING_PROFILE_DEVELOPMENT)) { log.error("Exception in {}.{}() with cause = \'{}\' and exception = \'{}\'", joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName(), e.getCause() != null ? e.getCause() : "NULL", e.getMessage(), e); } else { log.error("Exception in {}.{}() with cause = {}", joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName(), e.getCause() != null ? e.getCause() : "NULL"); } } /** * Advice that logs when a method is entered and exited. * * @param joinPoint The binding joinpoint * @throws Throwable Throws IllegalArgumentException * @return Object The result object */ @Around("loggingPointcut()") public Object logAround(ProceedingJoinPoint joinPoint) throws Throwable { if (log.isDebugEnabled()) { log.debug("Enter: {}.{}() with argument[s] = {}", joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName(), Arrays.toString(joinPoint.getArgs())); } try { Object result = joinPoint.proceed(); if (log.isDebugEnabled()) { log.debug("Exit: {}.{}() with result = {}", joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName(), result); } return result; } catch (IllegalArgumentException e) { log.error("Illegal argument: {} in {}.{}()", Arrays.toString(joinPoint.getArgs()), joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName()); throw e; } } }