Example usage for java.net NetworkInterface isLoopback

Introduction

In this page you can find the example usage for java.net NetworkInterface isLoopback.

Prototype

public boolean isLoopback() throws SocketException 

Source Link

Document

Returns whether a network interface is a loopback interface.

Usage

From source file:net.ftb.util.OSUtils.java

/**
 * Grabs the mac address of computer and makes it 10 times longer
 * @return a byte array containing mac address
 *//*from  ww w  .  ja  v a  2s .  c  o  m*/
public static byte[] getMacAddress() {
    if (cachedMacAddress != null && cachedMacAddress.length >= 10) {
        return cachedMacAddress;
    }
    try {
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface network = networkInterfaces.nextElement();
            byte[] mac = network.getHardwareAddress();
            if (mac != null && mac.length > 0 && !network.isLoopback() && !network.isVirtual()
                    && !network.isPointToPoint() && network.getName().substring(0, 3) != "ham") {
                Logger.logDebug("Interface: " + network.getDisplayName() + " : " + network.getName());
                cachedMacAddress = new byte[mac.length * 10];
                for (int i = 0; i < cachedMacAddress.length; i++) {
                    cachedMacAddress[i] = mac[i - (Math.round(i / mac.length) * mac.length)];
                }
                return cachedMacAddress;
            }
        }
    } catch (SocketException e) {
        Logger.logWarn("Exception getting MAC address", e);
    }

    Logger.logWarn("Failed to get MAC address, using default logindata key");
    return new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
}

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From source file:org.speechforge.zanzibar.sip.SipServer.java

public static InetAddress getLocalHost() throws SocketException, UnknownHostException {
    Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
    while (networkInterfaces.hasMoreElements()) {
        NetworkInterface networkInterface = networkInterfaces.nextElement();
        if (!networkInterface.isLoopback()) {
            Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
            if (inetAddresses.hasMoreElements())
                return inetAddresses.nextElement();
        }/*  w  w w  .  ja v  a  2  s.c  om*/
    }
    return InetAddress.getLocalHost();
}

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From source file:com.distrimind.madkit.kernel.MadkitProperties.java

private static long getMacAddress() {
    long result = 0;
    long result2 = 0;
    try {//  w  w  w  .j a va  2s .c  o  m
        final Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            final NetworkInterface ni = e.nextElement();

            if (!ni.isLoopback()) {

                long val = getHardwareAddress(ni.getHardwareAddress());
                if (val != 0 && val != 224) {
                    if (ni.isPointToPoint()) {
                        result2 = val;
                    } else {
                        result = val;
                        break;
                    }
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    if (result == 0)
        result = result2;
    return result;

}

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From source file:eu.stratosphere.nephele.discovery.DiscoveryService.java

/**
 * Returns the set of broadcast addresses available to the network interfaces of this host. In case of IPv6 the set
 * contains the IPv6 multicast address to reach all nodes on the local link. Moreover, all addresses of the loopback
 * interfaces are added to the set./* ww w .  jav a 2 s . c o m*/
 * 
 * @return (possibly empty) set of broadcast addresses reachable by this host
 */
private static Set<InetAddress> getBroadcastAddresses() {

    final Set<InetAddress> broadcastAddresses = new HashSet<InetAddress>();

    // get all network interfaces
    Enumeration<NetworkInterface> ie = null;
    try {
        ie = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        LOG.error("Could not collect network interfaces of host", e);
        return broadcastAddresses;
    }

    while (ie.hasMoreElements()) {
        NetworkInterface nic = ie.nextElement();
        try {
            if (!nic.isUp()) {
                continue;
            }

            if (nic.isLoopback()) {
                for (InterfaceAddress adr : nic.getInterfaceAddresses()) {
                    broadcastAddresses.add(adr.getAddress());
                }
            } else {

                // check all IPs bound to network interfaces
                for (InterfaceAddress adr : nic.getInterfaceAddresses()) {

                    if (adr == null) {
                        continue;
                    }

                    // collect all broadcast addresses
                    if (USE_IPV6) {
                        try {
                            final InetAddress interfaceAddress = adr.getAddress();
                            if (interfaceAddress instanceof Inet6Address) {
                                final Inet6Address ipv6Address = (Inet6Address) interfaceAddress;
                                final InetAddress multicastAddress = InetAddress.getByName(IPV6MULTICASTADDRESS
                                        + "%" + Integer.toString(ipv6Address.getScopeId()));
                                broadcastAddresses.add(multicastAddress);
                            }

                        } catch (UnknownHostException e) {
                            LOG.error(e);
                        }
                    } else {
                        final InetAddress broadcast = adr.getBroadcast();
                        if (broadcast != null) {
                            broadcastAddresses.add(broadcast);
                        }
                    }
                }
            }

        } catch (SocketException e) {
            LOG.error("Socket exception when checking " + nic.getName() + ". " + "Ignoring this device.", e);
        }
    }

    return broadcastAddresses;
}

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From source file:org.chromium.ChromeSystemNetwork.java

private void getNetworkInterfaces(final CordovaArgs args, final CallbackContext callbackContext) {
    cordova.getThreadPool().execute(new Runnable() {
        @Override// w  w  w .  j a  v a  2 s  . co m
        public void run() {
            try {
                JSONArray ret = new JSONArray();
                ArrayList<NetworkInterface> interfaces = Collections
                        .list(NetworkInterface.getNetworkInterfaces());
                for (NetworkInterface iface : interfaces) {
                    if (iface.isLoopback()) {
                        continue;
                    }
                    for (InterfaceAddress interfaceAddress : iface.getInterfaceAddresses()) {
                        InetAddress address = interfaceAddress.getAddress();
                        if (address == null) {
                            continue;
                        }
                        JSONObject data = new JSONObject();
                        data.put("name", iface.getDisplayName());
                        // Strip address scope zones for IPv6 address.
                        data.put("address", address.getHostAddress().replaceAll("%.*", ""));
                        data.put("prefixLength", interfaceAddress.getNetworkPrefixLength());

                        ret.put(data);
                    }
                }

                callbackContext.success(ret);
            } catch (Exception e) {
                Log.e(LOG_TAG, "Error occured while getting network interfaces", e);
                callbackContext.error("Could not get network interfaces");
            }
        }
    });
}

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From source file:org.peercast.pecaport.NetworkDeviceManager.java

/**
 * ?(eth0, eth1..)??/*from w w  w . ja  v a  2s .c om*/
 */
public List<NetworkInterfaceInfo.Ethernet> getEthernetInterface() {
    List<NetworkInterfaceInfo.Ethernet> infos = new ArrayList<>();
    try {

        for (NetworkInterface ni : Collections.list(NetworkInterface.getNetworkInterfaces())) {
            if (!ni.isLoopback() && !ni.isVirtual() && ni.getName().matches("^eth\\d+$") && //
                    ni.getInetAddresses().hasMoreElements())
                infos.add(new NetworkInterfaceInfo.Ethernet(ni));
        }
    } catch (SocketException e) {
        Log.w(TAG, "getEthernetInterface()", e);
    }
    return infos;
}

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From source file:terrastore.communication.NodeConfiguration.java

private String getPublishAddresses() throws Exception {
    Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
    StringBuilder result = new StringBuilder();
    while (nics != null && nics.hasMoreElements()) {
        NetworkInterface nic = nics.nextElement();
        if (nic.isUp() && !nic.isLoopback() && !nic.isVirtual() && nic.getInetAddresses().hasMoreElements()) {
            Enumeration<InetAddress> addresses = nic.getInetAddresses();
            while (addresses.hasMoreElements()) {
                if (result.length() > 0) {
                    result.append(",");
                }/*from ww  w.  j  a v  a 2  s  . c om*/
                result.append(addresses.nextElement().getHostAddress());
            }
        }
    }
    return result.toString();
}

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From source file:org.openremote.controller.service.BeehiveCommandCheckService.java

public static String getMACAddresses() throws Exception {
    StringBuilder macs = new StringBuilder();
    Enumeration<NetworkInterface> enum1 = NetworkInterface.getNetworkInterfaces();

    while (enum1.hasMoreElements()) {
        NetworkInterface networkInterface = enum1.nextElement();

        if (!networkInterface.isLoopback()) {
            boolean onlyLinkLocal = true;

            for (InterfaceAddress interfaceAddress : networkInterface.getInterfaceAddresses()) {
                if (!interfaceAddress.getAddress().isLinkLocalAddress()) {
                    onlyLinkLocal = false;
                }/*  w  w  w.java2 s.c  o m*/
            }

            if (onlyLinkLocal) {
                continue;
            }

            byte[] mac = networkInterface.getHardwareAddress();

            if (mac != null) {
                macs.append(getMACString(networkInterface.getHardwareAddress()));
                macs.append(",");
            }
        }
    }

    if (macs.length() == 0) {
        return "no-mac-address-found";
    }

    macs.deleteCharAt(macs.length() - 1);

    return macs.toString();
}

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From source file:com.at.lic.LicenseControl.java

private String getMAC() throws Exception {
    String mac = "1:2:3:4:5:6:7:8"; // default mac address

    InetAddress addr = InetAddress.getLocalHost();
    NetworkInterface ni = NetworkInterface.getByInetAddress(addr);

    if (ni.isLoopback() || ni.isVirtual()) {
        ni = null;//from  www.j ava 2 s .c  om
        Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
        while (nis.hasMoreElements()) {
            NetworkInterface aNI = (NetworkInterface) nis.nextElement();
            if (!aNI.isLoopback() && !aNI.isVirtual()) {
                ni = aNI;
                break;
            }
        }
    }

    if (ni != null) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintStream ps = new PrintStream(baos);
        byte[] HAs = ni.getHardwareAddress();
        for (int i = 0; i < HAs.length; i++) {
            ps.format("%02X:", HAs[i]);
        }
        mac = baos.toString();
        if (mac.length() > 0) {
            mac = mac.replaceFirst(":$", "");
        }

        ps.close();
        baos.close();

    }

    return mac;
}

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From source file:com.almende.arum.EventPusher.java

private String getHostAddress() throws SocketException {
    Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
    while (e.hasMoreElements()) {
        NetworkInterface n = (NetworkInterface) e.nextElement();
        if (!n.isLoopback() && n.isUp() && !n.isVirtual()) {

            Enumeration<InetAddress> ee = n.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress i = (InetAddress) ee.nextElement();
                if (i instanceof Inet4Address && !i.isLinkLocalAddress() && !i.isMulticastAddress()) {
                    return i.getHostAddress().trim();
                }/*from  w  w  w .j  a  va 2 s  .  c  o m*/
            }
        }
    }
    return null;
}

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