Examples with NetworkInterface java.net.NetworkInterface used on opensource projects

Example 51 with NetworkInterface

use of java.net.NetworkInterface in project hazelcast by hazelcast.

the class AddressUtil method findRealInet6Address.

private static Inet6Address findRealInet6Address(Inet6Address inet6Address) throws SocketException {
    Inet6Address resultInetAddress = null;
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    while (interfaces.hasMoreElements()) {
        NetworkInterface ni = interfaces.nextElement();
        Enumeration<InetAddress> addresses = ni.getInetAddresses();
        while (addresses.hasMoreElements()) {
            InetAddress address = addresses.nextElement();
            if (!isInet6Compatible(address, inet6Address)) {
                continue;
            }
            if (resultInetAddress != null) {
                throw new IllegalArgumentException("This address " + inet6Address + " is bound to more than one network interface!");
            }
            resultInetAddress = (Inet6Address) address;
        }
    }
    return resultInetAddress;
}

Example 52 with NetworkInterface

use of java.net.NetworkInterface in project hazelcast by hazelcast.

the class DefaultAddressPickerTest method findIPv4NonLoopbackInterface.

private static InetAddress findIPv4NonLoopbackInterface() {
    try {
        Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces.hasMoreElements()) {
            NetworkInterface ni = interfaces.nextElement();
            Enumeration<InetAddress> addresses = ni.getInetAddresses();
            while (addresses.hasMoreElements()) {
                InetAddress address = addresses.nextElement();
                if (address.isLoopbackAddress()) {
                    continue;
                }
                if (address instanceof Inet6Address) {
                    continue;
                }
                return address;
            }
        }
    } catch (SocketException e) {
        e.printStackTrace();
    }
    return null;
}

Example 53 with NetworkInterface

use of java.net.NetworkInterface in project hazelcast by hazelcast.

the class MulticastLoopbackModeTest method hasConfiguredNetworkInterface.

/**
     * Replies if a network interface was properly configured.
     *
     * @return <code>true</code> if there is at least one configured interface;
     * <code>false</code> otherwise.
     */
protected static boolean hasConfiguredNetworkInterface() {
    try {
        Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface i = e.nextElement();
            Enumeration<InetAddress> as = i.getInetAddresses();
            while (as.hasMoreElements()) {
                InetAddress a = as.nextElement();
                if (a instanceof Inet4Address && !a.isLoopbackAddress() && !a.isMulticastAddress()) {
                    return true;
                }
            }
        }
    } catch (Exception ignored) {
    // silently cast the exceptions
    }
    return false;
}

Example 54 with NetworkInterface

use of java.net.NetworkInterface in project JAirPort by froks.

the class Configuration method getHardwareAddress.

public static byte[] getHardwareAddress() {
    if (hwAddr == null || hwAddr.length == 0) {
        // MAC couldn't be determined
        try {
            InetAddress local = InetAddress.getLocalHost();
            NetworkInterface ni = NetworkInterface.getByInetAddress(local);
            if (ni != null) {
                hwAddr = ni.getHardwareAddress();
                return hwAddr;
            }
        } catch (Exception e) {
        // ignore
        }
        Random rand = new Random();
        byte[] mac = new byte[8];
        rand.nextBytes(mac);
        mac[0] = 0x00;
        hwAddr = mac;
    }
    return hwAddr;
}

Example 55 with NetworkInterface

use of java.net.NetworkInterface in project j2objc by google.

the class InetAddressTest method test_isReachable.

public void test_isReachable() throws Exception {
    // http://code.google.com/p/android/issues/detail?id=20203
    String s = "aced0005737200146a6176612e6e65742e496e6574416464726573732d9b57af" + "9fe3ebdb0200034900076164647265737349000666616d696c794c0008686f737" + "44e616d657400124c6a6176612f6c616e672f537472696e673b78704a7d9d6300" + "00000274000e7777772e676f6f676c652e636f6d";
    InetAddress inetAddress = InetAddress.getByName("www.google.com");
    new SerializationTester<InetAddress>(inetAddress, s) {

        @Override
        protected void verify(InetAddress deserialized) throws Exception {
            deserialized.isReachable(500);
            for (NetworkInterface nif : Collections.list(NetworkInterface.getNetworkInterfaces())) {
                deserialized.isReachable(nif, 20, 500);
            }
        }

        @Override
        protected boolean equals(InetAddress a, InetAddress b) {
            return a.getHostName().equals(b.getHostName());
        }
    }.test();
}