default Stream<PersonAttributeDao> findAttributeRepositories(final Predicate<PersonAttributeDao> filter) {
        return getAttributeRepositories().stream().filter(filter);
    }
Find attribute repositories and return the stream.

@param filter the filter
@return the stream
support/cas-server-support-person-directory-core/src/main/java/org/apereo/cas/persondir/PersonDirectoryAttributeRepositoryPlan.java