final String[] baseFields = fields != null ? fields : fessConfig.getSuggestPopularWordFieldsAsArray();
        final String[] baseExcludes = excludes != null ? excludes : fessConfig.getSuggestPopularWordExcludesAsArray();
        try {
            return cache.get(getCacheKey(baseSeed, baseTags, baseRoles, baseFields, baseExcludes), () -> {
                final List<String> wordList = new ArrayList<>();

    }

    String getSuggestPopularWordExcludes();

    default String[] getSuggestPopularWordExcludesAsArray() {
        return split(getSuggestPopularWordExcludes(), "\n")
                .get(stream -> stream.filter(StringUtil::isNotBlank).toArray(n -> new String[n]));
    }