return new String[] { "field1", "field2" };
                    }

                    @Override
                    public String[] getSuggestPopularWordExcludesAsArray() {
                        return new String[] { "exclude1", "exclude2" };
                    }

                    @Override
                    public Integer getSuggestPopularWordSizeAsInteger() {

        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]));
    }