public static boolean typeIsAssignableFrom(PsiClass from, String... toFQN) {
if (from == null) return false;
Set<String> matching = new HashSet<String>(Arrays.asList(toFQN));
PsiClass cls = from;
do {
if (matching.contains(cls.getQualifiedName())) return true;
for (PsiClass interfaceClass : cls.getInterfaces()) {
if (typeIsAssignableFrom(interfaceClass, toFQN)) {
return true;
}
}
} while ((cls = cls.getSuperClass()) != null);
return false;
}
