genMonitorUrl(monitorInfo) {
        if (monitorInfo.type === "port" && monitorInfo.port) {
            return monitorInfo.hostname + ":" + monitorInfo.port;
        }
        if (monitorInfo.hostname != null) {
            return monitorInfo.hostname;
        }
        return monitorInfo.url;
    }
Generate a monitor url from the monitors infomation
@param {object} monitorInfo Monitor details
@returns {string|undefined} Monitor URL