Java ProxyFactory.setExposeProxy方法代码示例

import org.springframework.aop.framework.ProxyFactory; //导入方法依赖的package包/类
protected Object createProxy(Object target, List<Advisor> advisors, Class<?>... interfaces) {
	ProxyFactory pf = new ProxyFactory(target);
	if (interfaces.length > 1 || interfaces[0].isInterface()) {
		pf.setInterfaces(interfaces);
	}
	else {
		pf.setProxyTargetClass(true);
	}

	// Required everywhere we use AspectJ proxies
	pf.addAdvice(ExposeInvocationInterceptor.INSTANCE);

	for (Object a : advisors) {
		pf.addAdvisor((Advisor) a);
	}

	pf.setExposeProxy(true);
	return pf.getProxy();
}
 

import org.springframework.aop.framework.ProxyFactory; //导入方法依赖的package包/类
@Test
public void testCanGetMethodSignatureFromJoinPoint() {
	final Object raw = new TestBean();
	// Will be set by advice during a method call
	final int newAge = 23;

	ProxyFactory pf = new ProxyFactory(raw);
	pf.setExposeProxy(true);
	pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
	pf.addAdvice(new MethodBeforeAdvice() {
		private int depth;

		@Override
		public void before(Method method, Object[] args, Object target) throws Throwable {
			JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();
			assertTrue("Method named in toString", jp.toString().contains(method.getName()));
			// Ensure that these don't cause problems
			jp.toShortString();
			jp.toLongString();

			assertSame(target, AbstractAspectJAdvice.currentJoinPoint().getTarget());
			assertFalse(AopUtils.isAopProxy(AbstractAspectJAdvice.currentJoinPoint().getTarget()));

			ITestBean thisProxy = (ITestBean) AbstractAspectJAdvice.currentJoinPoint().getThis();
			assertTrue(AopUtils.isAopProxy(AbstractAspectJAdvice.currentJoinPoint().getThis()));

			assertNotSame(target, thisProxy);

			// Check getting again doesn't cause a problem
			assertSame(thisProxy, AbstractAspectJAdvice.currentJoinPoint().getThis());

			// Try reentrant call--will go through this advice.
			// Be sure to increment depth to avoid infinite recursion
			if (depth++ == 0) {
				// Check that toString doesn't cause a problem
				thisProxy.toString();
				// Change age, so this will be returned by invocation
				thisProxy.setAge(newAge);
				assertEquals(newAge, thisProxy.getAge());
			}

			assertSame(AopContext.currentProxy(), thisProxy);
			assertSame(target, raw);

			assertSame(method.getName(), AbstractAspectJAdvice.currentJoinPoint().getSignature().getName());
			assertEquals(method.getModifiers(), AbstractAspectJAdvice.currentJoinPoint().getSignature().getModifiers());

			MethodSignature msig = (MethodSignature) AbstractAspectJAdvice.currentJoinPoint().getSignature();
			assertSame("Return same MethodSignature repeatedly", msig, AbstractAspectJAdvice.currentJoinPoint().getSignature());
			assertSame("Return same JoinPoint repeatedly", AbstractAspectJAdvice.currentJoinPoint(), AbstractAspectJAdvice.currentJoinPoint());
			assertEquals(method.getDeclaringClass(), msig.getDeclaringType());
			assertTrue(Arrays.equals(method.getParameterTypes(), msig.getParameterTypes()));
			assertEquals(method.getReturnType(), msig.getReturnType());
			assertTrue(Arrays.equals(method.getExceptionTypes(), msig.getExceptionTypes()));
			msig.toLongString();
			msig.toShortString();
		}
	});
	ITestBean itb = (ITestBean) pf.getProxy();
	// Any call will do
	assertEquals("Advice reentrantly set age", newAge, itb.getAge());
}