@Override public boolean matches(Method method, Class<?> targetClass, Object... args) { // Because a dynamic intersection may be composed of a static and dynamic part, // we must avoid calling the 3-arg matches method on a dynamic matcher, as // it will probably be an unsupported operation. boolean aMatches = (this.mm1.isRuntime() ? this.mm1.matches(method, targetClass, args) : this.mm1.matches(method, targetClass)); boolean bMatches = (this.mm2.isRuntime() ? this.mm2.matches(method, targetClass, args) : this.mm2.matches(method, targetClass)); return aMatches && bMatches; }
/** * Perform the least expensive check for a pointcut match. * @param pointcut the pointcut to match * @param method the candidate method * @param targetClass the target class * @param args arguments to the method * @return whether there's a runtime match */ public static boolean matches(Pointcut pointcut, Method method, Class<?> targetClass, Object... args) { Assert.notNull(pointcut, "Pointcut must not be null"); if (pointcut == Pointcut.TRUE) { return true; } if (pointcut.getClassFilter().matches(targetClass)) { // Only check if it gets past first hurdle. MethodMatcher mm = pointcut.getMethodMatcher(); if (mm.matches(method, targetClass)) { // We may need additional runtime (argument) check. return (!mm.isRuntime() || mm.matches(method, targetClass, args)); } } return false; }
@Test public void testStaticMethodMatcherUnion() throws Exception { MethodMatcher getterMatcher = new StartsWithMatcher("get"); MethodMatcher setterMatcher = new StartsWithMatcher("set"); MethodMatcher union = MethodMatchers.union(getterMatcher, setterMatcher); assertFalse("Union is a static matcher", union.isRuntime()); assertTrue("Matched setAge method", union.matches(ITESTBEAN_SETAGE, TestBean.class)); assertTrue("Matched getAge method", union.matches(ITESTBEAN_GETAGE, TestBean.class)); assertFalse("Didn't matched absquatulate method", union.matches(IOTHER_ABSQUATULATE, TestBean.class)); }
/** * Apply the given MethodMatcher to the given Method, supporting an * {@link org.springframework.aop.IntroductionAwareMethodMatcher} * (if applicable). * @param mm the MethodMatcher to apply (may be an IntroductionAwareMethodMatcher) * @param method the candidate method * @param targetClass the target class * @param hasIntroductions {@code true} if the object on whose behalf we are * asking is the subject on one or more introductions; {@code false} otherwise * @return whether or not this method matches statically */ public static boolean matches(MethodMatcher mm, Method method, Class<?> targetClass, boolean hasIntroductions) { Assert.notNull(mm, "MethodMatcher must not be null"); return (mm instanceof IntroductionAwareMethodMatcher ? ((IntroductionAwareMethodMatcher) mm).matches(method, targetClass, hasIntroductions) : mm.matches(method, targetClass)); }
@Test public void testDynamicAndStaticMethodMatcherIntersection() throws Exception { MethodMatcher mm1 = MethodMatcher.TRUE; MethodMatcher mm2 = new TestDynamicMethodMatcherWhichMatches(); MethodMatcher intersection = MethodMatchers.intersection(mm1, mm2); assertTrue("Intersection is a dynamic matcher", intersection.isRuntime()); assertTrue("2Matched setAge method", intersection.matches(ITESTBEAN_SETAGE, TestBean.class)); assertTrue("3Matched setAge method", intersection.matches(ITESTBEAN_SETAGE, TestBean.class, new Integer(5))); // Knock out dynamic part intersection = MethodMatchers.intersection(intersection, new TestDynamicMethodMatcherWhichDoesNotMatch()); assertTrue("Intersection is a dynamic matcher", intersection.isRuntime()); assertTrue("2Matched setAge method", intersection.matches(ITESTBEAN_SETAGE, TestBean.class)); assertFalse("3 - not Matched setAge method", intersection.matches(ITESTBEAN_SETAGE, TestBean.class, new Integer(5))); }
@Override public boolean matches(Method method, Class<?> targetClass) { // We're either instantiated and matching on declared pointcut, // or uninstantiated matching on either pointcut... return (isAspectMaterialized() && this.declaredPointcut.matches(method, targetClass)) || this.preInstantiationPointcut.getMethodMatcher().matches(method, targetClass); }
@Test public void testMatchWithArgs() throws Exception { String expression = "execution(void org.springframework.tests.sample.beans.TestBean.setSomeNumber(Number)) && args(Double)"; Pointcut pointcut = getPointcut(expression); ClassFilter classFilter = pointcut.getClassFilter(); MethodMatcher methodMatcher = pointcut.getMethodMatcher(); assertMatchesTestBeanClass(classFilter); // not currently testable in a reliable fashion //assertDoesNotMatchStringClass(classFilter); assertTrue("Should match with setSomeNumber with Double input", methodMatcher.matches(setSomeNumber, TestBean.class, new Double(12))); assertFalse("Should not match setSomeNumber with Integer input", methodMatcher.matches(setSomeNumber, TestBean.class, new Integer(11))); assertFalse("Should not match getAge", methodMatcher.matches(getAge, TestBean.class)); assertTrue("Should be a runtime match", methodMatcher.isRuntime()); }
@Override @Nullable public Object proceed() throws Throwable { // We start with an index of -1 and increment early. if (this.currentInterceptorIndex == this.interceptorsAndDynamicMethodMatchers.size() - 1) { return invokeJoinpoint(); } Object interceptorOrInterceptionAdvice = this.interceptorsAndDynamicMethodMatchers.get(++this.currentInterceptorIndex); if (interceptorOrInterceptionAdvice instanceof InterceptorAndDynamicMethodMatcher) { // Evaluate dynamic method matcher here: static part will already have // been evaluated and found to match. InterceptorAndDynamicMethodMatcher dm = (InterceptorAndDynamicMethodMatcher) interceptorOrInterceptionAdvice; Class<?> targetClass = (this.targetClass != null ? this.targetClass : this.method.getDeclaringClass()); if (dm.methodMatcher.matches(this.method, targetClass, this.arguments)) { return dm.interceptor.invoke(this); } else { // Dynamic matching failed. // Skip this interceptor and invoke the next in the chain. return proceed(); } } else { // It's an interceptor, so we just invoke it: The pointcut will have // been evaluated statically before this object was constructed. return ((MethodInterceptor) interceptorOrInterceptionAdvice).invoke(this); } }
private void assertMatchesGetAge(MethodMatcher methodMatcher) { assertTrue("Expression should match getAge() method", methodMatcher.matches(getAge, TestBean.class)); }