@SuppressWarnings("unchecked")
private static <A extends Annotation> void findRepeatableAnnotations(
Annotation[] candidates,
Class<A> annotationType,
Class<? extends Annotation> containerType,
boolean inherited,
Set<A> found,
Set<Annotation> visited) {
for (Annotation candidate : candidates) {
if (!isInJavaLangAnnotationPackage(candidate) && visited.add(candidate)) {
// Exact match?
if (candidate.annotationType().equals(annotationType)) {
found.add(annotationType.cast(candidate));
}
// Container?
else if (candidate.annotationType().equals(containerType)) {
// Note: it's not a legitimate container annotation if it doesn't declare
// a 'value' attribute that returns an array of the contained annotation type.
// Thus we proceed without verifying this assumption.
Method method = ReflectionUtils.getMethod(containerType, "value").get();
Annotation[] containedAnnotations =
(Annotation[]) ReflectionUtils.invokeMethod(method, candidate);
found.addAll((Collection<? extends A>) asList(containedAnnotations));
}
// Otherwise search recursively through the meta-annotation hierarchy...
else {
findRepeatableAnnotations(
candidate.annotationType(), annotationType, containerType, inherited, found, visited);
}
}
}
}
@Test
public void invokeMethod() throws Exception {
String rob = "Rob Harrop";
TestObject bean = new TestObject();
bean.setName(rob);
Method getName = TestObject.class.getMethod("getName", (Class[]) null);
Method setName = TestObject.class.getMethod("setName", String.class);
Object name = ReflectionUtils.invokeMethod(getName, bean);
assertEquals("Incorrect name returned", rob, name);
String juergen = "Juergen Hoeller";
ReflectionUtils.invokeMethod(setName, bean, juergen);
assertEquals("Incorrect name set", juergen, bean.getName());
}
protected static String doGetPath(Object resource) {
return (String) ReflectionUtils.invokeMethod(VIRTUAL_FILE_METHOD_GET_PATH_NAME, resource);
}