/** The key of the configuration. e.g. http,https */
    String CRAWLER_WEB_PROTOCOLS = "crawler.web.protocols";

    /** The key of the configuration. e.g. file,smb,smb1,ftp,storage */
    String CRAWLER_FILE_PROTOCOLS = "crawler.file.protocols";

    /** The key of the configuration. e.g. ^FESS_ENV_.* */