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:com.groupon.odo.proxylib.Utils.java

/**
 * This function returns the first external IP address encountered
 *
 * @return IP address or null/* w  w  w. j a  va  2 s  . com*/
 * @throws Exception
 */
public static String getPublicIPAddress() throws Exception {
    final String IPV4_REGEX = "\\A(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z";

    String ipAddr = null;
    Enumeration e = NetworkInterface.getNetworkInterfaces();
    while (e.hasMoreElements()) {
        NetworkInterface n = (NetworkInterface) e.nextElement();
        Enumeration ee = n.getInetAddresses();
        while (ee.hasMoreElements()) {
            InetAddress i = (InetAddress) ee.nextElement();

            // Pick the first non loop back address
            if ((!i.isLoopbackAddress() && i.isSiteLocalAddress()) || i.getHostAddress().matches(IPV4_REGEX)) {
                ipAddr = i.getHostAddress();
                break;
            }
        }
        if (ipAddr != null) {
            break;
        }
    }

    return ipAddr;
}

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From source file:com.cloud.utils.net.NetUtils.java

public static InetAddress[] getAllLocalInetAddresses() {
    final List<InetAddress> addrList = new ArrayList<InetAddress>();
    try {/*from w w  w.jav a  2s .c  om*/
        for (final NetworkInterface ifc : IteratorUtil
                .enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
            if (ifc.isUp() && !ifc.isVirtual()) {
                for (final InetAddress addr : IteratorUtil.enumerationAsIterable(ifc.getInetAddresses())) {
                    addrList.add(addr);
                }
            }
        }
    } catch (final SocketException e) {
        s_logger.warn("SocketException in getAllLocalInetAddresses().", e);
    }

    final InetAddress[] addrs = new InetAddress[addrList.size()];
    if (addrList.size() > 0) {
        System.arraycopy(addrList.toArray(), 0, addrs, 0, addrList.size());
    }
    return addrs;
}

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From source file:NotificationMessage.java

public static InetAddress getIPAddress() throws SocketException {
    InetAddress ip = null;//from w w  w.  j ava2s  . c  o  m
    Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
    for (NetworkInterface netint : Collections.list(nets)) {
        if (netint.getName().equals("wlan0")) {
            Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();

            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                return inetAddress;
            }
            //displayInterfaceInformation(netint);

        }
        continue;

    }
    return ip;
}

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From source file:org.kei.android.phone.cellhistory.towers.MobileNetworkInfo.java

/** Get IP For mobile */
public static String getMobileIP(final boolean useIPv4) {
    try {/*  w ww .ja  va  2 s  .c o  m*/
        final List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (final NetworkInterface intf : interfaces) {
            final List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (final InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    final String sAddr = addr.getHostAddress().toUpperCase(Locale.US);
                    final boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            final int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (final Exception ex) {
        Log.e(MobileNetworkInfo.class.getSimpleName(), "Exception in Get IP Address: " + ex.getMessage(), ex);
    }
    return TowerInfo.UNKNOWN;
}

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From source file:org.eclipse.smarthome.binding.lifx.internal.LifxLightDiscovery.java

@Override
protected void activate(Map<String, Object> configProperties) {
    super.activate(configProperties);

    broadcastAddresses = new ArrayList<InetSocketAddress>();
    interfaceAddresses = new ArrayList<InetAddress>();

    Enumeration<NetworkInterface> networkInterfaces = null;
    try {// www  .ja va  2s.  c  o m
        networkInterfaces = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        logger.debug("An exception occurred while discovering LIFX lights : '{}'", e.getMessage());
    }
    if (networkInterfaces != null) {
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface iface = networkInterfaces.nextElement();
            try {
                if (iface.isUp() && !iface.isLoopback()) {
                    for (InterfaceAddress ifaceAddr : iface.getInterfaceAddresses()) {
                        if (ifaceAddr.getAddress() instanceof Inet4Address) {
                            logger.debug("Adding '{}' as interface address with MTU {}", ifaceAddr.getAddress(),
                                    iface.getMTU());
                            if (iface.getMTU() > bufferSize) {
                                bufferSize = iface.getMTU();
                            }
                            interfaceAddresses.add(ifaceAddr.getAddress());
                            if (ifaceAddr.getBroadcast() != null) {
                                logger.debug("Adding '{}' as broadcast address", ifaceAddr.getBroadcast());
                                broadcastAddresses
                                        .add(new InetSocketAddress(ifaceAddr.getBroadcast(), BROADCAST_PORT));
                            }
                        }
                    }
                }
            } catch (SocketException e) {
                logger.debug("An exception occurred while discovering LIFX lights : '{}'", e.getMessage());
            }
        }
    }
}

---

From source file:com.jagornet.dhcp.client.ClientSimulatorV6.java

/**
 * Instantiates a new test client./*from  ww w . ja v  a 2s.  com*/
 *
 * @param args the args
 * @throws Exception the exception
 */
public ClientSimulatorV6(String[] args) throws Exception {
    DEFAULT_NETIF = NetworkInterface.getNetworkInterfaces().nextElement();
    DEFAULT_ADDR = DhcpConstants.ALL_DHCP_RELAY_AGENTS_AND_SERVERS;

    setupOptions();

    if (!parseOptions(args)) {
        formatter = new HelpFormatter();
        String cliName = this.getClass().getName();
        formatter.printHelp(cliName, options);
        System.exit(0);
    }

    try {
        start();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

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From source file:org.powertac.tournament.services.TournamentProperties.java

private String getTourneyUrl() {
    if (!properties.getProperty("tourney.location", "").isEmpty()) {
        return properties.getProperty("tourney.location");
    }//from   w w w  .ja  v  a 2s.co  m

    String tourneyUrl = "http://%s:8080/TournamentScheduler/";
    String address = "127.0.0.1";
    try {
        Enumeration<NetworkInterface> n = NetworkInterface.getNetworkInterfaces();
        while (n.hasMoreElements()) {
            NetworkInterface e = n.nextElement();
            if (e.getName().startsWith("lo")) {
                continue;
            }

            Enumeration<InetAddress> a = e.getInetAddresses();
            while (a.hasMoreElements()) {
                InetAddress addr = a.nextElement();
                if (addr.getClass().getName().equals("java.net.Inet4Address")) {
                    address = addr.getHostAddress();
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        messages.add("Error getting Tournament Location!");
    }

    return String.format(tourneyUrl, address);
}

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From source file:org.wso2.carbon.analytics.dataservice.indexing.AnalyticsDataIndexer.java

private String getLocalUniqueId() {
    String id = null;//from w w w .j a va 2  s.  c  o  m
    Enumeration<NetworkInterface> interfaces;
    NetworkInterface nif;
    try {
        interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces.hasMoreElements()) {
            nif = interfaces.nextElement();
            if (!nif.isLoopback()) {
                byte[] addr = nif.getHardwareAddress();
                if (addr != null) {
                    id = this.byteArrayToHexString(addr);
                }
                /* only try first valid one, if we can't get it from here, 
                 * we wont be able to get it */
                break;
            }
        }
    } catch (SocketException ignore) {
        /* ignore */
    }
    if (id == null) {
        log.warn("CANNOT LOOK UP UNIQUE LOCAL ID USING A VALID NETWORK INTERFACE HARDWARE ADDRESS, "
                + "REVERTING TO LOCAL SINGLE NODE MODE, THIS WILL NOT WORK PROPERLY IN A CLUSTER, "
                + "AND MAY CAUSE INDEX CORRUPTION");
        /* a last effort to get a unique number, Java system properties should also take in account of the 
         * server's port offset */
        id = LOCAL_NODE_ID + ":" + (System.getenv().hashCode() + System.getProperties().hashCode());
    }
    return id;
}

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From source file:com.amazonaws.services.kinesis.aggregators.consumer.AggregatorConsumer.java

public void configure() throws Exception {
    if (!isConfigured) {
        validateConfig();/*from  w  w w . j  av  a 2s. c om*/

        if (this.positionInStream != null) {
            streamPosition = InitialPositionInStream.valueOf(this.positionInStream);
        } else {
            streamPosition = InitialPositionInStream.LATEST;
        }

        // append the environment name to the application name
        if (environmentName != null) {
            appName = String.format("%s-%s", appName, environmentName);
        }

        // ensure the JVM will refresh the cached IP values of AWS resources
        // (e.g. service endpoints).
        java.security.Security.setProperty("networkaddress.cache.ttl", "60");

        String workerId = NetworkInterface.getNetworkInterfaces() + ":" + UUID.randomUUID();
        LOG.info("Using Worker ID: " + workerId);

        // obtain credentials using the default provider chain or the
        // credentials provider supplied
        AWSCredentialsProvider credentialsProvider = this.credentialsProvider == null
                ? new DefaultAWSCredentialsProviderChain()
                : this.credentialsProvider;

        LOG.info("Using credentials with Access Key ID: "
                + credentialsProvider.getCredentials().getAWSAccessKeyId());

        config = new KinesisClientLibConfiguration(appName, streamName, credentialsProvider, workerId)
                .withInitialPositionInStream(streamPosition).withKinesisEndpoint(kinesisEndpoint);

        config.getKinesisClientConfiguration().setUserAgent(StreamAggregator.AWSApplication);

        if (regionName != null) {
            Region region = Region.getRegion(Regions.fromName(regionName));
            config.withRegionName(region.getName());
        }

        if (maxRecords != -1)
            config.withMaxRecords(maxRecords);

        // initialise the Aggregators
        aggGroup = buildAggregatorsFromConfig();

        LOG.info(String.format(
                "Amazon Kinesis Aggregators Managed Client prepared for %s on %s in %s (%s) using %s Max Records",
                config.getApplicationName(), config.getStreamName(), config.getRegionName(),
                config.getWorkerIdentifier(), config.getMaxRecords()));

        isConfigured = true;
    }
}

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From source file:com.git.original.common.utils.IPUtils.java

/**
 * ?IP?/*from w w  w .j  a va  2  s .  c om*/
 * <p>
 * :<br/>
 * 1. 192.xxx.xxx.xxx<br>
 * 2. 172.xxx.xxx.xxx<br>
 * 3. 10.xxx.xxx.xxx<br>
 * other<br>
 * 
 * @return ipv4?
 * @throws SocketException
 */
private static synchronized int doGetLocalIp() throws SocketException {
    if (localIp != 0) {
        return localIp;
    }

    Integer ipStartWith10 = null;
    Integer ipStartWith172 = null;
    Integer other = null;

    /*
     * ?IP?
     */
    Enumeration<NetworkInterface> interfaceEnum = NetworkInterface.getNetworkInterfaces();
    while (interfaceEnum.hasMoreElements()) {
        NetworkInterface netInterface = interfaceEnum.nextElement();
        if (!netInterface.isUp()) {
            continue;
        }

        Enumeration<InetAddress> addrEnum = netInterface.getInetAddresses();
        while (addrEnum.hasMoreElements()) {
            InetAddress addr = addrEnum.nextElement();
            String hostAddr = addr.getHostAddress();

            if (hostAddr.startsWith("192.")) {
                localIp = ByteUtils.toInt(addr.getAddress());
                return localIp;
            } else if (ipStartWith172 == null && hostAddr.startsWith("172.")) {
                ipStartWith172 = ByteUtils.toInt(addr.getAddress());
            } else if (ipStartWith10 == null && hostAddr.startsWith("10.")) {
                ipStartWith10 = ByteUtils.toInt(addr.getAddress());
            } else if (other == null && (addr instanceof Inet4Address)) {
                other = ByteUtils.toInt(addr.getAddress());
            }
        }
    }

    if (ipStartWith172 != null) {
        localIp = ipStartWith172;
        return localIp;
    } else if (ipStartWith10 != null) {
        localIp = ipStartWith10;
        return localIp;
    } else if (other != null) {
        localIp = other;
        return localIp;
    }

    throw new RuntimeException("can not get Local Server IPv4 Address");
}

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