Example usage for java.net NetworkInterface getNetworkInterfaces

List of usage examples for java.net NetworkInterface getNetworkInterfaces

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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:eu.stratosphere.nephele.taskmanager.TaskManager.java

/**
 * Find out the TaskManager's own IP address.
 *//*from w ww .  j a  va  2s  . c  om*/
private InetAddress getTaskManagerAddress(InetSocketAddress jobManagerAddress) throws IOException {
    AddressDetectionState strategy = AddressDetectionState.ADDRESS;

    while (true) {
        Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface n = e.nextElement();
            Enumeration<InetAddress> ee = n.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress i = ee.nextElement();
                switch (strategy) {
                case ADDRESS:
                    if (hasCommonPrefix(jobManagerAddress.getAddress().getAddress(), i.getAddress())) {
                        if (tryToConnect(i, jobManagerAddress, strategy.getTimeout())) {
                            LOG.info("Determined " + i + " as the TaskTracker's own IP address");
                            return i;
                        }
                    }
                    break;
                case FAST_CONNECT:
                case SLOW_CONNECT:
                    boolean correct = tryToConnect(i, jobManagerAddress, strategy.getTimeout());
                    if (correct) {
                        LOG.info("Determined " + i + " as the TaskTracker's own IP address");
                        return i;
                    }
                    break;
                default:
                    throw new RuntimeException("Unkown address detection strategy: " + strategy);
                }
            }
        }
        // state control
        switch (strategy) {
        case ADDRESS:
            strategy = AddressDetectionState.FAST_CONNECT;
            break;
        case FAST_CONNECT:
            strategy = AddressDetectionState.SLOW_CONNECT;
            break;
        case SLOW_CONNECT:
            throw new RuntimeException("The TaskManager failed to detect its own IP address");
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Defaulting to detection strategy " + strategy);
        }
    }
}

From source file:edu.stanford.epad.epadws.processing.pipeline.task.EpadStatisticsTask.java

public static String getIPAddress() {
    String ip = "";
    String ipi = "";
    Enumeration e;//from w  ww  .  jav  a 2 s  .c om
    try {
        e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface n = (NetworkInterface) e.nextElement();
            Enumeration ee = n.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress i = (InetAddress) ee.nextElement();
                ipi = i.getHostAddress();
                if (!ipi.startsWith("127") && !ipi.startsWith("192") && !ipi.startsWith("172")
                        && !ipi.startsWith("10.") && !ipi.startsWith("0:"))
                    ip = ipi;
            }
        }
    } catch (SocketException e1) {
        e1.printStackTrace();
    }
    if (ip.length() == 0)
        return ipi;
    else
        return ip;
}

From source file:cn.apputest.ctria.section2.Lucha2Activity.java

public String getLocalIpAddressGPRS() {
    try {/*from  w w w  .j  a v a  2s .c o  m*/
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()) {
                    return inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (SocketException ex) {
        Log.e("WifiPreferenceIpAddress", "ex.toString()");
    }
    return null;
}

From source file:org.votingsystem.util.HttpHelper.java

public static String getLocalIP() throws SocketException {
    Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
    for (NetworkInterface netint : Collections.list(nets)) {
        Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
        for (InetAddress inetAddress : Collections.list(inetAddresses)) {
            if (inetAddress.isSiteLocalAddress()) {
                String inetAddressStr = inetAddress.toString();
                while (inetAddressStr.startsWith("/"))
                    inetAddressStr = inetAddressStr.substring(1);
                return inetAddressStr;
            }//ww w  . jav a  2 s .c o  m

        }
    }
    return null;
}

From source file:com.material.katha.wifidirectmp3.DeviceDetailFragment.java

public byte[] getLocalIPAddress() {
    try {//from   w w w . j  av  a2s . c  o m
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()) {
                    if (inetAddress instanceof Inet4Address) {
                        return inetAddress.getAddress();
                    }
                }
            }
        }
    } catch (SocketException ex) {
        // Log.e("AndroidNetworkAddressFactory", "getLocalIPAddress()", ex);
    } catch (NullPointerException ex) {
        // Log.e("AndroidNetworkAddressFactory", "getLocalIPAddress()", ex);
    }
    return null;
}

From source file:org.apache.axis2.util.Utils.java

/**
* Returns the ip address to be used for the replyto epr
* CAUTION://  w  w  w  .j a v  a 2 s .  c  om
* This will go through all the available network interfaces and will try to return an ip address.
* First this will try to get the first IP which is not loopback address (127.0.0.1). If none is found
* then this will return this will return 127.0.0.1.
* This will <b>not<b> consider IPv6 addresses.
* <p/>
* TODO:
* - Improve this logic to genaralize it a bit more
* - Obtain the ip to be used here from the Call API
*
* @return Returns String.
* @throws java.net.SocketException
 */
public static String getIpAddress() throws SocketException {
    Enumeration e = NetworkInterface.getNetworkInterfaces();
    String address = "127.0.0.1";

    while (e.hasMoreElements()) {
        NetworkInterface netface = (NetworkInterface) e.nextElement();
        Enumeration addresses = netface.getInetAddresses();

        while (addresses.hasMoreElements()) {
            InetAddress ip = (InetAddress) addresses.nextElement();
            if (!ip.isLoopbackAddress() && isIP(ip.getHostAddress())) {
                return ip.getHostAddress();
            }
        }
    }

    return address;
}

From source file:com.googlecode.networklog.NetworkLog.java

public static void getLocalIpAddresses() {
    MyLog.d("getLocalIpAddresses");
    localIpAddrs = new ArrayList<String>();

    try {// ww w .j  ava2  s  .c o  m
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            MyLog.d("Network interface found: " + intf.toString());

            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                MyLog.d("InetAddress: " + inetAddress.toString());

                if (!inetAddress.isLoopbackAddress()) {
                    MyLog.d("Adding local IP address: [" + inetAddress.getHostAddress().toString() + "]");
                    localIpAddrs.add(inetAddress.getHostAddress().toString());
                }
            }
        }
    } catch (SocketException ex) {
        Log.e("NetworkLog", ex.toString());
    }
}

From source file:com.android.development.Connectivity.java

private void onBoundSocketRequest() {
    NetworkInterface networkInterface = null;
    try {/* w  w w  .  j av  a  2  s . c  om*/
        networkInterface = NetworkInterface.getByName("rmnet0");
    } catch (Exception e) {
        Log.e(TAG, "exception getByName: " + e);
        return;
    }
    if (networkInterface == null) {
        try {
            Log.d(TAG, "getting any networkInterface");
            networkInterface = NetworkInterface.getNetworkInterfaces().nextElement();
        } catch (Exception e) {
            Log.e(TAG, "exception getting any networkInterface: " + e);
            return;
        }
    }
    if (networkInterface == null) {
        Log.e(TAG, "couldn't find a local interface");
        return;
    }
    Enumeration inetAddressess = networkInterface.getInetAddresses();
    while (inetAddressess.hasMoreElements()) {
        Log.d(TAG, " addr:" + ((InetAddress) inetAddressess.nextElement()));
    }
    InetAddress local = null;
    InetAddress remote = null;
    try {
        local = networkInterface.getInetAddresses().nextElement();
    } catch (Exception e) {
        Log.e(TAG, "exception getting local InetAddress: " + e);
        return;
    }
    try {
        remote = InetAddress.getByName("www.flickr.com");
    } catch (Exception e) {
        Log.e(TAG, "exception getting remote InetAddress: " + e);
        return;
    }
    Log.d(TAG, "remote addr =" + remote);
    Log.d(TAG, "local addr =" + local);
    Socket socket = null;
    try {
        socket = new Socket(remote, 80, local, 6000);
    } catch (Exception e) {
        Log.e(TAG, "Exception creating socket: " + e);
        return;
    }
    try {
        PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
        out.println("Hi flickr");
    } catch (Exception e) {
        Log.e(TAG, "Exception writing to socket: " + e);
        return;
    }
}

From source file:com.entertailion.java.fling.FlingFrame.java

private InterfaceAddress getPreferredInetAddress(String prefix) {
    InterfaceAddress selectedInterfaceAddress = null;
    try {// www  .ja  v a 2s  .  co m
        Enumeration<NetworkInterface> list = NetworkInterface.getNetworkInterfaces();

        while (list.hasMoreElements()) {
            NetworkInterface iface = list.nextElement();
            if (iface == null)
                continue;
            Log.d(LOG_TAG, "interface=" + iface.getName());
            Iterator<InterfaceAddress> it = iface.getInterfaceAddresses().iterator();
            while (it.hasNext()) {
                InterfaceAddress interfaceAddress = it.next();
                if (interfaceAddress == null)
                    continue;
                InetAddress address = interfaceAddress.getAddress();
                Log.d(LOG_TAG, "address=" + address);
                if (address instanceof Inet4Address) {
                    // Only pick an interface that is likely to be on the
                    // same subnet as the selected ChromeCast device
                    if (address.getHostAddress().toString().startsWith(prefix)) {
                        return interfaceAddress;
                    }
                }
            }
        }
    } catch (Exception ex) {
    }
    return selectedInterfaceAddress;
}