}
        });
    }

    protected void processSearchRoles(final List<SearchResult> result, final Consumer<String> consumer) throws NamingException {
        for (final SearchResult srcrslt : result) {
            final Attributes attrs = srcrslt.getAttributes();

            //get group attr
            final Attribute attr = attrs.get(fessConfig.getLdapMemberofAttribute());

        return searchResult.build(requestBuilder, execTime, OptionalEntity.ofNullable(response, () -> {}));
    }

    public <T> T search(final String index, final SearchCondition<SearchRequestBuilder> condition,
            final SearchResult<T, SearchRequestBuilder, SearchResponse> searchResult) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();