@Override
    public void updateCategory(String categoryId,
            String newName) throws ProfileExceptions {
    	if (categoryId == null || categoryId.isEmpty())
            throw new ProfileExceptions(ProfileExceptionType.EmptyString);
    	if (newName == null || newName.isEmpty())
            throw new ProfileExceptions(ProfileExceptionType.EmptyString);
        currentUser.updateCategory(categoryId, newName);
    }