return true;
            }
        }
        return false;
    }

    protected OptionalThing<String[]> getQueryLanguages() {
        return LaRequestUtil.getOptionalRequest().map(request -> ComponentUtil.getFessConfig().getQueryLanguages(request.getLocales(),
                (String[]) request.getAttribute(Constants.REQUEST_LANGUAGES)));
    }

            }
            return mapping.get(s.split("[\\-_]")[0]);
        }).filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

    default String[] getQueryLanguages(final Enumeration<Locale> locales, final String[] requestLangs) {
        // requestLangs > default > browser
        if (StringUtil.isNotBlank(getQueryDefaultLanguages())) {