* The value is, e.g. file,smb,smb1,ftp,storage <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerFileProtocols();

    /**
     * Get the value for the key 'crawler.data.env.param.key.pattern'. <br>
     * The value is, e.g. ^FESS_ENV_.* <br>