SpringのProxy周りの実装を追いかける

memo.md

• AopAutoConfiguration

• EnableAspectJAutoProxy

• AspectJAutoProxyRegistrar

• AopConfigUtils#registerAspectJAnnotationAutoProxyCreatorIfNecessary

• AopConfigUtils#registerOrEscalateApcAsRequired

• AnnotationAwareAspectJAutoProxyCreator.class <--> AspectJAwareAdvisorAutoProxyCreator.class

• static { APC_PRIORITY_LIST.add(InfrastructureAdvisorAutoProxyCreator.class); APC_PRIORITY_LIST.add(AspectJAwareAdvisorAutoProxyCreator.class); APC_PRIORITY_LIST.add(AnnotationAwareAspectJAutoProxyCreator.class); }

	@Override
	protected boolean isInfrastructureClass(Class<?> beanClass) {
		// Previously we setProxyTargetClass(true) in the constructor, but that has too
		// broad an impact. Instead we now override isInfrastructureClass to avoid proxying
		// aspects. I'm not entirely happy with that as there is no good reason not
		// to advise aspects, except that it causes advice invocation to go through a
		// proxy, and if the aspect implements e.g the Ordered interface it will be
		// proxied by that interface and fail at runtime as the advice method is not
		// defined on the interface. We could potentially relax the restriction about
		// not advising aspects in the future.
		return (super.isInfrastructureClass(beanClass) || this.aspectJAdvisorFactory.isAspect(beanClass));
	}

• BeanFactoryAdvisorRetrievalHelper

• ProxyCreationContext

• AbstractAutoProxyCreator

  • SmartInstantiationAwareBeanPostProcessor
    • InstantiationAwareBeanPostProcessor
      • BeanPostProcessor

• AbstractAutoProxyCreator

• AbstractAutoProxyCreator#wrapIfNecessary

• AbstractAutoProxyCreator#createProxy

• ProxyConfig <-- AdvisedSupport <-- ProxyCreatorSupport <-- ProxyFactory

  • ProxyFactory#getProxy
  • ProxyCreatorSupport#createAopProxy
  • ProxyCreatorSupport#getAopProxyFactory
  • ProxyCreatorSupport#getAopProxyFactory
  • AopProxyFactory#createAopProxy
  • AopProxy#getProxy
  • DefaultAopProxyFactory#createAopProxy
    • JdkDynamicAopProxy(config);
    • ObjenesisCglibAopProxy(config);
    • JdkDynamicAopProxy(config);
  • ObjenesisCglibAopProxy#createProxyClassAndInstance
  • org.springframework.cglib.proxy.Enhancer#createClass
  • objenesis.newInstance(proxyClass, enhancer.getUseCache())
    • SpringObjenesis objenesis = new SpringObjenesis();
  • StdInstantiatorStrategy

    public <T> ObjectInstantiator<T> newInstantiatorOf(Class<T> type) {
        if (!PlatformDescription.isThisJVM("Java HotSpot") && !PlatformDescription.isThisJVM("OpenJDK")) {
            if (PlatformDescription.isThisJVM("Dalvik")) {
                if (PlatformDescription.isAndroidOpenJDK()) {
                    return new UnsafeFactoryInstantiator(type);
                } else if (PlatformDescription.ANDROID_VERSION <= 10) {
                    return new Android10Instantiator(type);
                } else {
                    return (ObjectInstantiator)(PlatformDescription.ANDROID_VERSION <= 17 ? new Android17Instantiator(type) : new Android18Instantiator(type));
                }
            } else if (PlatformDescription.isThisJVM("BEA")) {
                return new SunReflectionFactoryInstantiator(type);
            } else if (PlatformDescription.isThisJVM("GNU libgcj")) {
                return new GCJInstantiator(type);
            } else {
                return (ObjectInstantiator)(PlatformDescription.isThisJVM("PERC") ? new PercInstantiator(type) : new UnsafeFactoryInstantiator(type));
            }
        } else if (PlatformDescription.isGoogleAppEngine() && PlatformDescription.SPECIFICATION_VERSION.equals("1.7")) {
            return (ObjectInstantiator)(Serializable.class.isAssignableFrom(type) ? new ObjectInputStreamInstantiator(type) : new AccessibleInstantiator(type));
        } else {
            return new SunReflectionFactoryInstantiator(type);
        }

• TargetClassAware <-- Advised <--implements-- AdvisedSupport

• DefaultAopProxyFactory