RelatedContentCQ cq = new RelatedContentCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            RelatedContentCA ca = new RelatedContentCA();

        RelatedContentCQ mustQuery = new RelatedContentCQ();
        RelatedContentCQ shouldQuery = new RelatedContentCQ();
        RelatedContentCQ mustNotQuery = new RelatedContentCQ();
        RelatedContentCQ filterQuery = new RelatedContentCQ();
        boolLambda.callback(mustQuery, shouldQuery, mustNotQuery, filterQuery);

            buf.append(",\"related_query\":");
            buf.append(escapeJson(relatedQueries));
            final String[] relatedContents = relatedContentHelper.getRelatedContents(params.getQuery());
            buf.append(",\"related_contents\":");
            buf.append(escapeJson(relatedContents));
            buf.append(',');
            buf.append("\"data\":[");
            if (!documentItems.isEmpty()) {

                "fess_config.job_log", //
                "fess_config.key_match", //
                "fess_config.label_type", //
                "fess_config.path_mapping", //
                "fess_config.related_content", //
                "fess_config.related_query", //
                "fess_config.request_header", //
                "fess_config.role_type", //
                "fess_config.scheduled_job", //