* @return The detected language.
     */
    protected String detectLanguage(final String text) {
        if (StringUtil.isBlank(text)) {
            return null;
        }
        final String target = getDetectText(text);
        final LanguageResult result = detector.detect(target);
        if (logger.isDebugEnabled()) {
            logger.debug("detected lang:{}({}) from {}", result, result.getRawScore(), target);
        }