default void saveOrUpdate(final SamlMetadataDocument document) {
        throw new NotImplementedException("Operation saveOrUpdate is not implemented/supported");
    }
Save or update metadata document in the source.

@param document the metadata document.
support/cas-server-support-saml-idp-metadata/src/main/java/org/apereo/cas/support/saml/services/idp/metadata/cache/resolver/SamlRegisteredServiceMetadataResolver.java