public static String getServerIPv4()

in eureka-client/src/main/java/com/netflix/discovery/util/SystemUtil.java [37:59]

• 23 lines of code
• 9 McCabe index (conditional complexity)

    public static String getServerIPv4() {
        String candidateAddress = null;
        try {
            Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
            while (nics.hasMoreElements()) {
                NetworkInterface nic = nics.nextElement();
                Enumeration<InetAddress> inetAddresses = nic.getInetAddresses();
                while (inetAddresses.hasMoreElements()) {
                    String address = inetAddresses.nextElement().getHostAddress();
                    String nicName = nic.getName();
                    if (nicName.startsWith("eth0") || nicName.startsWith("en0")) {
                        return address;
                    }
                    if (nicName.endsWith("0") || candidateAddress == null) {
                        candidateAddress = address;
                    }
                }
            }
        } catch (SocketException e) {
            throw new RuntimeException("Cannot resolve local network address", e);
        }
        return candidateAddress == null ? "127.0.0.1" : candidateAddress;
    }