.forEach(q -> queryBuf.append(" filetype:\"").append(q.trim()).append('"')));
        stream(conditions.get(SearchRequestParams.AS_SITESEARCH))
                .of(stream -> stream.filter(q -> StringUtil.isNotBlank(q) && q.length() <= maxQueryLength)
                        .forEach(q -> queryBuf.append(" site:").append(q.trim())));