private String getRuleKey(Object annotatedClassOrObject) {
String key = null;
Rule ruleAnnotation = AnnotationUtils.getAnnotation(annotatedClassOrObject, Rule.class);
if (ruleAnnotation != null) {
key = ruleAnnotation.key();
}
Class clazz = annotatedClassOrObject.getClass();
if (annotatedClassOrObject instanceof Class) {
clazz = (Class) annotatedClassOrObject;
}