Example usage for java.net NetworkInterface getNetworkInterfaces

Introduction

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

Prototype

public static Enumeration<NetworkInterface> getNetworkInterfaces() throws SocketException

Source Link

Document

Returns an Enumeration of all the interfaces on this machine.

Usage

From source file:org.nuxeo.ecm.core.management.statuses.NuxeoInstanceIdentifierHelper.java

public static String generateHardwareUID() throws Exception {
    String hwUID = "";

    String javaVersion = System.getProperty("java.version");

    Enumeration<NetworkInterface> ifs = NetworkInterface.getNetworkInterfaces();

    while (ifs.hasMoreElements()) {
        NetworkInterface ni = ifs.nextElement();

        if (javaVersion.contains("1.6")) {
            // ni.getHardwareAddress() only in jdk 1.6
            Method[] methods = ni.getClass().getMethods();
            for (Method method : methods) {
                if (method.getName().equalsIgnoreCase("getHardwareAddress")) {
                    byte[] hwAddr = (byte[]) method.invoke(ni);
                    if (hwAddr != null) {
                        hwUID = hwUID + "-" + Base64.encodeBytes(hwAddr);
                    }/*from  w ww  . ja  v a2  s .com*/
                    break;
                }
            }
        } else {
            Enumeration<InetAddress> addrs = ni.getInetAddresses();
            while (addrs.hasMoreElements()) {
                hwUID = hwUID + "-" + Base64.encodeBytes(addrs.nextElement().getAddress());
            }
        }
    }
    return hwUID;
}

From source file:com.seadee.degree.service.NetworkStateReceiver.java

public static String getLocalIpAddress(Context context) {
    final String IPTAG = "getLocalIpAddress";
    String nullAddress = "0.0.0.0";
    try {/*from   w  ww.j a v  a 2 s  .  com*/
        if (SettingVarible.networkstate != SettingVarible.NETWORKSTATE.NONETWORK) {
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                    .hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr
                        .hasMoreElements();) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    String ip_address = inetAddress.getHostAddress();
                    if (!inetAddress.isLoopbackAddress() && InetAddressUtils.isIPv4Address(ip_address))
                        return ip_address;
                }
            }
        }
    } catch (SocketException ex) {
        Log.e(IPTAG, ex.toString());
    }
    return nullAddress;
}

From source file:LocalAddress.java

/**
 * Return an address of a non-loopback interface on the local host
 * /*from  ww w.j  a v  a 2 s .  c o  m*/
 * @return address
 *         the InetAddress of the local host
 */
public static InetAddress getLocalAddress() {
    InetAddress addr = null;
    try {
        addr = InetAddress.getLocalHost();
        // OK - is this the loopback addr ?
        if (!addr.isLoopbackAddress()) {
            return addr;
        }
        // plan B - enumerate the network interfaces
        Enumeration ifaces = NetworkInterface.getNetworkInterfaces();
        while (ifaces.hasMoreElements()) {
            NetworkInterface netIf = (NetworkInterface) ifaces.nextElement();
            Enumeration addrs = netIf.getInetAddresses();
            while (addrs.hasMoreElements()) {
                addr = (InetAddress) addrs.nextElement();
                //System.out.println( "enum: " + addr.getHostAddress() );
                if (addr instanceof Inet6Address) {
                    // probably not what we want - keep looking
                    continue;
                }
                // chose (arbitrarily?) first non-loopback addr
                if (!addr.isLoopbackAddress()) {
                    return addr;
                }
            }
        }
        // nothing so far - last resort
        return getReflectedAddress();
    } catch (UnknownHostException uhE) {
        // deal with this
    } catch (SocketException sockE) {
        // can deal?
    }

    return null;
}

From source file:Main.java

public static String getLocalIpAddress() {
    try {//from  ww  w .ja v a  2s  .  c o m
        String ipv4;
        List<NetworkInterface> nilist = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface ni : nilist) {
            List<InetAddress> ialist = Collections.list(ni.getInetAddresses());
            for (InetAddress address : ialist) {
                if (!address.isLoopbackAddress()
                        && InetAddressUtils.isIPv4Address(ipv4 = address.getHostAddress())) {
                    return ipv4;
                }
            }
        }
    } catch (SocketException ex) {
    }

    return null;
}

From source file:NetworkUtil.java

/**
 * @return the current environment's IP address, taking into account the Internet connection to any of the available
 *         machine's Network interfaces. Examples of the outputs can be in octats or in IPV6 format.
 * <pre>//from w ww .ja  va2s .c om
 *         ==> wlan0
 *         
 *         fec0:0:0:9:213:e8ff:fef1:b717%4 
 *         siteLocal: true 
 *         isLoopback: false isIPV6: true
 *         130.212.150.216 <<<<<<<<<<<------------- This is the one we want to grab so that we can. 
 *         siteLocal: false                          address the DSP on the network. 
 *         isLoopback: false 
 *         isIPV6: false 
 *         
 *         ==> lo 
 *         0:0:0:0:0:0:0:1%1 
 *         siteLocal: false 
 *         isLoopback: true 
 *         isIPV6: true 
 *         127.0.0.1 
 *         siteLocal: false 
 *         isLoopback: true 
 *         isIPV6: false
 *  </pre>
 */
public static String getCurrentEnvironmentNetworkIp() {
    if (currentHostIpAddress == null) {
        Enumeration<NetworkInterface> netInterfaces = null;
        try {
            netInterfaces = NetworkInterface.getNetworkInterfaces();

            while (netInterfaces.hasMoreElements()) {
                NetworkInterface ni = netInterfaces.nextElement();
                Enumeration<InetAddress> address = ni.getInetAddresses();
                while (address.hasMoreElements()) {
                    InetAddress addr = address.nextElement();
                    //                      log.debug("Inetaddress:" + addr.getHostAddress() + " loop? " + addr.isLoopbackAddress() + " local? "
                    //                            + addr.isSiteLocalAddress());
                    if (!addr.isLoopbackAddress() && addr.isSiteLocalAddress()
                            && !(addr.getHostAddress().indexOf(":") > -1)) {
                        currentHostIpAddress = addr.getHostAddress();
                    }
                }
            }
            if (currentHostIpAddress == null) {
                currentHostIpAddress = "127.0.0.1";
            }

        } catch (SocketException e) {
            //                log.error("Somehow we have a socket error acquiring the host IP... Using loopback instead...");
            currentHostIpAddress = "127.0.0.1";
        }
    }
    return currentHostIpAddress;
}

From source file:com.alibaba.napoli.metamorphosis.network.RemotingUtils.java

public static String getLocalAddress() throws Exception {
    // ????ip?/*from  w  w w .  ja v a  2 s . c o  m*/
    final Enumeration<NetworkInterface> enumeration = NetworkInterface.getNetworkInterfaces();
    InetAddress ipv6Address = null;
    while (enumeration.hasMoreElements()) {
        final NetworkInterface networkInterface = enumeration.nextElement();
        final Enumeration<InetAddress> en = networkInterface.getInetAddresses();
        while (en.hasMoreElements()) {
            final InetAddress address = en.nextElement();
            if (!address.isLoopbackAddress()) {
                if (address instanceof Inet6Address) {
                    ipv6Address = address;
                } else {
                    // ipv4
                    return normalizeHostAddress(address);
                }
            }

        }

    }
    // ipv4?ipv6
    if (ipv6Address != null) {
        return normalizeHostAddress(ipv6Address);
    }
    final InetAddress localHost = InetAddress.getLocalHost();
    return normalizeHostAddress(localHost);
}

From source file:nfinity.FindPeer.java

public String ScanNetwork() {
    try {/*from  w  w  w.  j  av a2 s  .  c  o  m*/
        Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netint : Collections.list(nets)) {
            Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                if (!inetAddress.getClass().toString().equals("class java.net.Inet6Address")) {
                    if (!inetAddress.isLoopbackAddress()) {
                        try {
                            SubnetUtils utils = new SubnetUtils(inetAddress.getHostAddress() + "/"
                                    + netint.getInterfaceAddresses().get(1).getNetworkPrefixLength());
                            String[] allIps = utils.getInfo().getAllAddresses();
                            return ConnectIP(allIps, inetAddress);
                        } catch (IllegalArgumentException ex) {
                            int prefix = NetworkInterface.getByInetAddress(inetAddress).getInterfaceAddresses()
                                    .get(0).getNetworkPrefixLength();
                            if (!inetAddress.isLoopbackAddress()) {
                                System.out
                                        .println("IP: " + inetAddress.getHostAddress() + " Prefix: " + prefix);
                                SubnetUtils utils = new SubnetUtils(
                                        inetAddress.getHostAddress() + "/" + prefix);
                                String[] allIps = utils.getInfo().getAllAddresses();
                                return ConnectIP(allIps, inetAddress);
                            }
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
        System.out.println("Connection failed " + ex.getMessage());
    }
    return "Peer not found";
}

From source file:eu.codebits.plasmas.util.NetworkInterfaces.java

/**
 * @param interfaceName eth0, wlan0 or NULL=use first interface 
 * @param useIPv4//  w  w w .  ja v  a2 s.  c  o  m
 * @return address or empty string
 */
@SuppressLint("DefaultLocale")
public static String getIPAddress(String interfaceName, boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    String sAddr = addr.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
    }
    return "";
}

From source file:com.splout.db.common.GetIPAddresses.java

/**
 * Returns all available IP addresses./* www  . j  ava 2s  . c  om*/
 * <p/>
 * In error case or if no network connection is established, we return an empty list here.
 * <p/>
 * Loopback addresses are excluded - so 127.0.0.1 will not be never returned.
 * <p/>
 * The "primary" IP might not be the first one in the returned list.
 *
 * @return Returns all IP addresses (can be an empty list in error case or if network connection is missing).
 * @throws SocketException
 * @since 0.1.0
 */
public static Collection<InetAddress> getAllLocalIPs() throws SocketException {
    LinkedList<InetAddress> listAdr = new LinkedList<InetAddress>();

    Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();
    if (nifs == null)
        return listAdr;

    while (nifs.hasMoreElements()) {
        NetworkInterface nif = nifs.nextElement();
        // We ignore subinterfaces - as not yet needed.
        Enumeration<InetAddress> adrs = nif.getInetAddresses();
        while (adrs.hasMoreElements()) {
            InetAddress adr = adrs.nextElement();
            if (adr != null && !adr.isLoopbackAddress()
                    && (nif.isPointToPoint() || !adr.isLinkLocalAddress())) {
                log.info("Available site local address: " + adr);
                listAdr.add(adr);
            }
        }
    }
    return listAdr;
}

From source file:cn.leancloud.diamond.server.utils.SystemConfig.java

private static String getHostAddress() {
    String address = "127.0.0.1";
    try {/*from  w ww.  j  a  v  a  2  s. c o m*/
        Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
        while (en.hasMoreElements()) {
            NetworkInterface ni = en.nextElement();
            Enumeration<InetAddress> ads = ni.getInetAddresses();
            while (ads.hasMoreElements()) {
                InetAddress ip = ads.nextElement();
                if (!ip.isLoopbackAddress() && ip.isSiteLocalAddress()) {
                    return ip.getHostAddress();
                }
            }
        }
    } catch (Exception e) {
    }
    return address;
}