private static String lookupHost ( Properties props ) { String host = null ; // 1. lookup system property 'td.logger.api.server.host' if ( props . containsKey ( Config . TD_LOGGER_API_SERVER_HOST ) ) { host = props . getProperty ( Config . TD_LOGGER_API_SERVER_HOST ) ; } // if not exists, set default value if ( host == null ) { host = Config . TD_LOGGER_API_SERVER_HOST_DEFAULT ; } // write/overwrite it to 'td.api.server.host' props . setProperty ( Config . TD_API_SERVER_HOST , host ) ; return host ; }
Define order for hostname lookup . 1 . lookup props s td . logger . api . server . host