*/
    @PostConstruct
    public void init() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        webProtocols = split(fessConfig.getCrawlerWebProtocols(), ",")
                .get(stream -> stream.filter(StringUtil::isNotBlank).map(s -> s.trim() + ":").toArray(n -> new String[n]));
        fileProtocols = split(fessConfig.getCrawlerFileProtocols(), ",")

     * The value is, e.g. http,https <br>
     * comment: Supported web protocols for crawling.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerWebProtocols();

    /**
     * Get the value for the key 'crawler.file.protocols'. <br>
     * The value is, e.g. file,smb,smb1,ftp,storage,s3,gcs <br>
     * comment: Supported file protocols for crawling.