def get_aap_exemptions(resource_props):
    """
    Gets the list of parameters that the Heat author has exempted from following
    the naming conventions associated with AAP.

    :param resource_props: dict of properties under the resource ID
    :return: list of all parameters to exempt or an empty list
    """
    metadata = resource_props.get("metadata") or {}
    return metadata.get("aap_exempt") or []