org.aopalliance.aop.Advice Java Examples

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 在请求前判断是否存在正在执行的请求
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @throws Throwable
	 * @date 2018-12-21
	 */
	return (MethodInterceptor) invocation -> {
		HttpServletRequest request = MVCUtil.request();
		String key = KeyGenerator.servletKey(ReflectUtil.fullName(invocation.getMethod()), request);
		try {
			if (checker.check(key)) {
				log.info("重复请求:IP地址{}", ServletUtil.getAddr(request));
				return Result.repeatRequest();
			}
			checker.lock(key);
			return invocation.proceed();
		} finally {
			checker.free(key);
		}
	};
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 检测出耗时过高的方法调用并在日志中告警
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @throws Throwable
	 * @date 2018-12-21
	 */
	return (MethodInterceptor) invocation -> {
		String name = ReflectUtil.fullName(invocation.getMethod());
		long threshold = thresholdCache.get(name);
		long count = System.nanoTime();
		Object result = invocation.proceed();
		count = System.nanoTime() - count;
		if (count > threshold) {
			log.warn("{}方法耗时{}毫秒,触发超时警告!", name, count / times);
		}
		return result;
	};
}
 

@Override
public MethodInterceptor[] getInterceptors(Advisor advisor) throws UnknownAdviceTypeException {
	List<MethodInterceptor> interceptors = new ArrayList<>(3);
	Advice advice = advisor.getAdvice();
	if (advice instanceof MethodInterceptor) {
		interceptors.add((MethodInterceptor) advice);
	}
	for (AdvisorAdapter adapter : this.adapters) {
		if (adapter.supportsAdvice(advice)) {
			interceptors.add(adapter.getInterceptor(advisor));
		}
	}
	if (interceptors.isEmpty()) {
		throw new UnknownAdviceTypeException(advisor.getAdvice());
	}
	return interceptors.toArray(new MethodInterceptor[0]);
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 在一定时间段内拦截重复请求
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @date 2018-12-21
	 */
	return (MethodInterceptor) invocation -> {
		HttpServletRequest request = MVCUtil.request();
		String name = ReflectUtil.fullName(invocation.getMethod());
		String key = KeyGenerator.servletKey(name, request);
		if (checker.check(key)) {
			log.info("重复请求:IP地址{}", ServletUtil.getAddr(request));
			return Result.repeatRequest().async();
		}
		checker.lock(key, timeoutCache.get(name));
		return invocation.proceed();
	};
}
 

private static boolean hasAdvice(Object proxy, Class<? extends Advice> adviceClass) {
    if(!AopUtils.isAopProxy(proxy)) {
        return false;
    }
    ProxyFactory proxyFactory = null;
    if(AopUtils.isJdkDynamicProxy(proxy)) {
        proxyFactory = findJdkDynamicProxyFactory(proxy);
    }
    if(AopUtils.isCglibProxy(proxy)) {
        proxyFactory = findCglibProxyFactory(proxy);
    }

    Advisor[] advisors = proxyFactory.getAdvisors();

    if(advisors == null || advisors.length == 0) {
        return false;
    }

    for(Advisor advisor : advisors) {
        if(adviceClass.isAssignableFrom(advisor.getAdvice().getClass())) {
            return true;
        }
    }
    return false;
}
 

private Advice[] getAdviceChainOrAddInterceptorToChain(Advice... existingAdviceChain) {
  if (existingAdviceChain == null) {
    return new Advice[] {rabbitMqReceiveTracingInterceptor};
  }

  for (Advice advice : existingAdviceChain) {
    if (advice instanceof RabbitMqReceiveTracingInterceptor) {
      return existingAdviceChain;
    }
  }

  Advice[] newChain = new Advice[existingAdviceChain.length + 1];
  System.arraycopy(existingAdviceChain, 0, newChain, 0, existingAdviceChain.length);
  newChain[existingAdviceChain.length] = rabbitMqReceiveTracingInterceptor;

  return newChain;
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 打印参数到日志
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @date 2019-01-12
	 */
	return (MethodBeforeAdvice) (method, args, target) -> {
		Parameter[] parameters = method.getParameters();
		Map<String, Object> paramMap = new HashMap<>(parameters.length);
		for (int i = 0; i < parameters.length; ++i) {
			paramMap.put(parameters[i].getName(), args[i]);
		}
		log.info("{} 请求参数:{}", ReflectUtil.fullName(method), JSONUtil.string(paramMap));
	};
}
 

@Override
public MethodInterceptor[] getInterceptors(Advisor advisor) throws UnknownAdviceTypeException {
	List<MethodInterceptor> interceptors = new ArrayList<MethodInterceptor>(3);
	Advice advice = advisor.getAdvice();
	if (advice instanceof MethodInterceptor) {
		interceptors.add((MethodInterceptor) advice);
	}
	for (AdvisorAdapter adapter : this.adapters) {
		if (adapter.supportsAdvice(advice)) {
			interceptors.add(adapter.getInterceptor(advisor));
		}
	}
	if (interceptors.isEmpty()) {
		throw new UnknownAdviceTypeException(advisor.getAdvice());
	}
	return interceptors.toArray(new MethodInterceptor[interceptors.size()]);
}
 

@Override
public String toString() {
	StringBuilder sb = new StringBuilder();
	Advice advice = this.advisor.getAdvice();
	sb.append(ClassUtils.getShortName(advice.getClass()));
	sb.append(": ");
	if (this.advisor instanceof Ordered) {
		sb.append("order ").append(((Ordered) this.advisor).getOrder()).append(", ");
	}
	if (advice instanceof AbstractAspectJAdvice) {
		AbstractAspectJAdvice ajAdvice = (AbstractAspectJAdvice) advice;
		sb.append(ajAdvice.getAspectName());
		sb.append(", declaration order ");
		sb.append(ajAdvice.getDeclarationOrder());
	}
	return sb.toString();
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 请求限流
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @date 2018-12-21
	 */
	return (MethodInterceptor) invocation -> {
		Pair<RateLimiter, Long> pair = limitCache.get(ReflectUtil.fullName(invocation.getMethod()));
		if (!pair.getKey().tryAcquire(pair.getValue(), DefTime.UNIT)) {
			return Result.busy();
		}
		return invocation.proceed();
	};
}
 

@Override
public int indexOf(Advice advice) {
	Assert.notNull(advice, "Advice must not be null");
	for (int i = 0; i < this.advisors.size(); i++) {
		Advisor advisor = this.advisors.get(i);
		if (advisor.getAdvice() == advice) {
			return i;
		}
	}
	return -1;
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 对参数进行验证
	 * @author Frodez
	 * @date 2019-05-10
	 */
	return (MethodInterceptor) invocation -> {
		String msg = ValidationUtil.validateParam(invocation.getThis(), invocation.getMethod(), invocation.getArguments());
		return msg == null ? invocation.proceed() : Result.errorRequest(msg).async();
	};
}
 

@Override
public int getOrder() {
	if (this.order != null) {
		return this.order;
	}
	Advice advice = getAdvice();
	if (advice instanceof Ordered) {
		return ((Ordered) advice).getOrder();
	}
	return Ordered.LOWEST_PRECEDENCE;
}
 

@SuppressWarnings("unchecked")
Object createProxy(Object bean, boolean cglibProxy, Advice advice) {
    ProxyFactoryBean factory = new ProxyFactoryBean();
    factory.setProxyTargetClass(cglibProxy);
    factory.addAdvice(advice);
    factory.setTarget(bean);
    return getObject(factory);
}
 

@Override
public int indexOf(Advice advice) {
	Assert.notNull(advice, "Advice must not be null");
	for (int i = 0; i < this.advisors.size(); i++) {
		Advisor advisor = this.advisors.get(i);
		if (advisor.getAdvice() == advice) {
			return i;
		}
	}
	return -1;
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 对参数进行验证
	 * @author Frodez
	 * @date 2019-05-10
	 */
	return (MethodInterceptor) invocation -> {
		String msg = ValidationUtil.validateParam(invocation.getThis(), invocation.getMethod(), invocation.getArguments());
		return msg == null ? invocation.proceed() : Result.errorRequest(msg);
	};
}
 

@Override
public boolean removeAdvice(Advice advice) throws AopConfigException {
	int index = indexOf(advice);
	if (index == -1) {
		return false;
	}
	else {
		removeAdvisor(index);
		return true;
	}
}
 

/**
 * Is the given advice included in any advisor within this proxy configuration?
 * @param advice the advice to check inclusion of
 * @return whether this advice instance is included
 */
public boolean adviceIncluded(Advice advice) {
	if (advice != null) {
		for (Advisor advisor : this.advisors) {
			if (advisor.getAdvice() == advice) {
				return true;
			}
		}
	}
	return false;
}
 

/**
 * AOP切点
 * @author Frodez
 * @date 2019-05-10
 */
@Override
public Advice getAdvice() {
	/**
	 * 打印返回值到日志
	 * @param JoinPoint AOP切点
	 * @author Frodez
	 * @date 2019-01-12
	 */
	return (AfterReturningAdvice) (returnValue, method, args, target) -> log.info("{} 返回值:{}", ReflectUtil.fullName(method), JSONUtil
		.string(returnValue));
}
 

@SuppressWarnings("unchecked")
Object createProxy(Object bean, boolean cglibProxy, Advice advice) {
	ProxyFactoryBean factory = new ProxyFactoryBean();
	factory.setProxyTargetClass(cglibProxy);
	factory.addAdvice(advice);
	factory.setTarget(bean);
	return getObject(factory);
}
 

@Override
public Advice getAdvice() {
	return (MethodInterceptor) invocation -> {
		try {
			return invocation.proceed();
		} catch (Exception e) {
			log.error(StrUtil.concat("[", ReflectUtil.fullName(invocation.getMethod()), "]"), e);
			return Result.errorService();
		}
	};
}
 

/**
 * リトライインタセプタ実行のアドバイスを指定し、DIコンテナに登録します。
 * @return {@link #statefulRetryOperationsInterceptor()}
 */
@Bean
public Advice[] advice() {
    return new Advice[] {
        statefulRetryOperationsInterceptor()
    };
}
 

/**
 * Look at bean factory metadata to work out whether this bean name,
 * which concludes the interceptorNames list, is an Advisor or Advice,
 * or may be a target.
 * @param beanName bean name to check
 * @return {@code true} if it's an Advisor or Advice
 */
private boolean isNamedBeanAnAdvisorOrAdvice(String beanName) {
	Class<?> namedBeanClass = this.beanFactory.getType(beanName);
	if (namedBeanClass != null) {
		return (Advisor.class.isAssignableFrom(namedBeanClass) || Advice.class.isAssignableFrom(namedBeanClass));
	}
	// Treat it as an target bean if we can't tell.
	if (logger.isDebugEnabled()) {
		logger.debug("Could not determine type of bean with name '" + beanName +
				"' - assuming it is neither an Advisor nor an Advice");
	}
	return false;
}
 

/**
 * Return the AspectJPrecedenceInformation provided by this advisor or its advice.
 * If neither the advisor nor the advice have precedence information, this method
 * will return {@code null}.
 */
public static AspectJPrecedenceInformation getAspectJPrecedenceInformationFor(Advisor anAdvisor) {
	if (anAdvisor instanceof AspectJPrecedenceInformation) {
		return (AspectJPrecedenceInformation) anAdvisor;
	}
	Advice advice = anAdvisor.getAdvice();
	if (advice instanceof AspectJPrecedenceInformation) {
		return (AspectJPrecedenceInformation) advice;
	}
	return null;
}
 

@Override
public int indexOf(Advice advice) {
	Assert.notNull(advice, "Advice must not be null");
	for (int i = 0; i < this.advisors.size(); i++) {
		Advisor advisor = this.advisors.get(i);
		if (advisor.getAdvice() == advice) {
			return i;
		}
	}
	return -1;
}
 

/** Instruments an existing {@linkplain SimpleRabbitListenerContainerFactory} */
public SimpleRabbitListenerContainerFactory decorateSimpleRabbitListenerContainerFactory(
  SimpleRabbitListenerContainerFactory factory
) {
  Advice[] chain = factory.getAdviceChain();

  TracingRabbitListenerAdvice tracingAdvice = new TracingRabbitListenerAdvice(this);
  // If there are no existing advice, return only the tracing one
  if (chain == null) {
    factory.setAdviceChain(tracingAdvice);
    return factory;
  }

  // If there is an existing tracing advice return
  for (Advice advice : chain) {
    if (advice instanceof TracingRabbitListenerAdvice) {
      return factory;
    }
  }

  // Otherwise, add ours and return
  Advice[] newChain = new Advice[chain.length + 1];
  newChain[0] = tracingAdvice;
  System.arraycopy(chain, 0, newChain, 1, chain.length);
  factory.setAdviceChain(newChain);
  return factory;
}
 

private Advice instantiateAdvice(AspectJExpressionPointcut pointcut) {
	Advice advice = this.aspectJAdvisorFactory.getAdvice(this.aspectJAdviceMethod, pointcut,
			this.aspectInstanceFactory, this.declarationOrder, this.aspectName);
	return (advice != null ? advice : EMPTY_ADVICE);
}
 

@Override
public boolean supportsAdvice(Advice advice) {
	return (advice instanceof SimpleBeforeAdvice);
}
 

@Override
public Advice getAdvice() {
	Assert.state(this.transactionInterceptor != null, "No TransactionInterceptor set");
	return this.transactionInterceptor;
}
 

@Override
public Advice getAdvice() {
	return this.advice;
}