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:com.aurel.track.prop.ApplicationBean.java

/**
 * Retrieve all non-loopback IP addresses from all network interfaces
 *
 * @return the array of assigned IP numbers
 *///w ww.  j  a va2  s .co  m
public static InetAddress[] getInetAddress() {
    List<InetAddress> allIPs = new ArrayList<InetAddress>();
    InetAddress[] allAds = null;

    try {
        InetAddress candidateAddress = null;
        // Iterate all NICs (network interface cards)...
        for (Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces(); ifaces
                .hasMoreElements();) {
            NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
            // Iterate all IP addresses assigned to each card...
            for (Enumeration<InetAddress> inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) {
                InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
                if (!inetAddr.isLoopbackAddress()) {

                    if (inetAddr.isSiteLocalAddress()) {
                        // Found non-loopback site-local address. Return it
                        // immediately...
                        allIPs.add(inetAddr);
                        continue;
                    } else if (candidateAddress == null) {
                        // Found non-loopback address, but not necessarily
                        // site-local.
                        // Store it as a candidate to be returned if
                        // site-local address is not subsequently found...
                        candidateAddress = inetAddr;
                        // Note that we don't repeatedly assign non-loopback
                        // non-site-local addresses as candidates,
                        // only the first. For subsequent iterations,
                        // candidate will be non-null.
                    }
                }
            }
        }

        // At this point, we did not find a non-loopback address.
        // Fall back to returning whatever InetAddress.getLocalHost()
        // returns...
        if (allIPs.isEmpty()) {
            allIPs.add(InetAddress.getLocalHost());
        }

        allAds = new InetAddress[allIPs.size()];
        allAds = allIPs.toArray(allAds);

    } catch (Exception uhn) {
        LOGGER.error(
                "An exception occurred trying to get " + "all IP addresses for this host: " + uhn.getMessage());
    }
    return allAds;
}

From source file:org.smilec.smile.student.CourseList.java

private String get_IP() {

    try {//from   w  ww  .j ava  2  s .  c o m
        Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface ni = e.nextElement();
            Enumeration<InetAddress> ips = ni.getInetAddresses();
            while (ips.hasMoreElements()) {
                String ipa = ips.nextElement().toString();

                if (ipa.startsWith("/"))
                    ipa = ipa.substring(1);

                if (ipa.indexOf(':') >= 0) { // IPv6. Ignore
                    continue;
                }

                if (ipa.equals("127.0.0.1")) {
                    continue; // loopback MY_IP. Not meaningful for out
                              // purpose
                }

                Log.d(APP_TAG, ipa);
                return ipa;
            }
        }

    } catch (SocketException e) {

        e.printStackTrace();
    }

    return null;
}

From source file:com.jagornet.dhcpv6.server.DhcpV6Server.java

private List<InetAddress> getAllIPv6Addrs() {
    List<InetAddress> ipAddrs = new ArrayList<InetAddress>();
    try {/*from   w  ww  .ja va 2  s .  co m*/
        Enumeration<NetworkInterface> localInterfaces = NetworkInterface.getNetworkInterfaces();
        if (localInterfaces != null) {
            while (localInterfaces.hasMoreElements()) {
                NetworkInterface netIf = localInterfaces.nextElement();
                Enumeration<InetAddress> ifAddrs = netIf.getInetAddresses();
                while (ifAddrs.hasMoreElements()) {
                    InetAddress ip = ifAddrs.nextElement();
                    if (ip instanceof Inet6Address) {
                        ipAddrs.add(ip);
                    }
                }
            }
        } else {
            log.error("No network interfaces found!");
        }
    } catch (IOException ex) {
        log.error("Failed to get IPv6 addresses: " + ex);
    }
    return ipAddrs;
}

From source file:org.apache.axis2.transport.nhttp.ServerWorker.java

/**
 * Copied from transport.http of Axis2//from www.  j  a  v a2s .  com
 *
 * Returns the ip address to be used for the replyto epr
 * CAUTION:
 * 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
 */
private 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:org.structr.util.StructrLicenseManager.java

private Iterable<NetworkInterface> getNetworkInterfaces() {

    final List<NetworkInterface> interfaces = new LinkedList<>();

    try {/*from   w  ww .j a  v  a  2  s .  c  o  m*/
        for (final Enumeration<NetworkInterface> enumeration = NetworkInterface
                .getNetworkInterfaces(); enumeration.hasMoreElements();) {

            interfaces.add(enumeration.nextElement());
        }

    } catch (SocketException ex) {
    }

    return interfaces;
}

From source file:org.archive.modules.fetcher.FetchHTTPTests.java

public void testHttpBindAddress() throws Exception {
    List<InetAddress> addrList = new ArrayList<InetAddress>();
    for (NetworkInterface ifc : Collections.list(NetworkInterface.getNetworkInterfaces())) {
        if (ifc.isUp()) {
            for (InetAddress addr : Collections.list(ifc.getInetAddresses())) {
                if (addr instanceof Inet4Address) {
                    addrList.add(addr);//from  w  w  w  . j  av  a 2  s .  co m
                }
            }
        }
    }
    if (addrList.size() < 2) {
        fail("unable to test binding to different local addresses: only " + addrList.size()
                + " addresses available");
    }
    for (InetAddress addr : addrList) {
        tryHttpBindAddress(addr.getHostAddress());
    }
}

From source file:com.max2idea.android.fwknop.Fwknop.java

public static String getLocalIpAddress() {
    try {//from  w  w  w.  j av  a 2 s .  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()) {
                    Log.v("Internal ip", inetAddress.getHostAddress().toString());
                    return inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (SocketException ex) {
        Log.e("Internal IP", ex.toString());
    }
    return null;
}

From source file:com.sentaroh.android.SMBSync2.CommonUtilities.java

public static String getLocalIpAddress() {
    String result = "";
    boolean exit = false;
    try {/* w w  w  . jav  a2s.  co  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() && !(inetAddress.toString().indexOf(":")>=0)) {
                //                       return inetAddress.getHostAddress().toString();
                //                   }
                //                  Log.v("","ip="+inetAddress.getHostAddress()+
                //                        ", name="+intf.getName());
                if (inetAddress.isSiteLocalAddress()) {
                    result = inetAddress.getHostAddress();
                    //                       Log.v("","result="+result+", name="+intf.getName()+"-");
                    if (intf.getName().equals("wlan0")) {
                        exit = true;
                        break;
                    }
                }
            }
            if (exit)
                break;
        }
    } catch (SocketException ex) {
        Log.e(APPLICATION_TAG, ex.toString());
        result = "192.168.0.1";
    }
    //      Log.v("","getLocalIpAddress result="+result);
    if (result.equals(""))
        result = "192.168.0.1";
    return result;
}

From source file:org.apache.nifi.registry.jetty.JettyServer.java

private void dumpUrls() throws SocketException {
    final List<String> urls = new ArrayList<>();

    for (Connector connector : server.getConnectors()) {
        if (connector instanceof ServerConnector) {
            final ServerConnector serverConnector = (ServerConnector) connector;

            Set<String> hosts = new HashSet<>();

            // determine the hosts
            if (StringUtils.isNotBlank(serverConnector.getHost())) {
                hosts.add(serverConnector.getHost());
            } else {
                Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
                if (networkInterfaces != null) {
                    for (NetworkInterface networkInterface : Collections.list(networkInterfaces)) {
                        for (InetAddress inetAddress : Collections.list(networkInterface.getInetAddresses())) {
                            hosts.add(inetAddress.getHostAddress());
                        }// w  w  w  .  j  a v  a2s  .  co m
                    }
                }
            }

            // ensure some hosts were found
            if (!hosts.isEmpty()) {
                String scheme = "http";
                if (properties.getSslPort() != null && serverConnector.getPort() == properties.getSslPort()) {
                    scheme = "https";
                }

                // dump each url
                for (String host : hosts) {
                    urls.add(String.format("%s://%s:%s", scheme, host, serverConnector.getPort()));
                }
            }
        }
    }

    if (urls.isEmpty()) {
        logger.warn(
                "NiFi Registry has started, but the UI is not available on any hosts. Please verify the host properties.");
    } else {
        // log the ui location
        logger.info("NiFi Registry has started. The UI is available at the following URLs:");
        for (final String url : urls) {
            logger.info(String.format("%s/nifi-registry", url));
        }
    }
}

From source file:fr.inria.ucn.collectors.NetworkStateCollector.java

private JSONArray getIfconfig(Map<String, JSONObject> stats) throws JSONException {
    JSONArray ifaces = new JSONArray();

    // make sure the stats is read
    networkStats();// w  w  w  .  j a v  a  2 s  .c om

    Enumeration<NetworkInterface> en = null;
    try {
        en = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        Log.d(Constants.LOGTAG, "failed to list interfaces", e);
    }

    if (en != null) {
        while (en.hasMoreElements()) {
            NetworkInterface intf = en.nextElement();

            JSONObject iface = new JSONObject();
            iface.put("display_name", intf.getDisplayName());
            iface.put("name", intf.getName());
            iface.put("is_virtual", intf.isVirtual());
            iface.put("stats", stats.get(intf.getName()));

            try {
                iface.put("mtu", intf.getMTU());
                iface.put("is_loopback", intf.isLoopback());
                iface.put("is_ptop", intf.isPointToPoint());
                iface.put("is_up", intf.isUp());
            } catch (SocketException e) {
                Log.d(Constants.LOGTAG, "failed to read interface data", e);
            }

            JSONArray ips = new JSONArray();
            List<InterfaceAddress> ilist = intf.getInterfaceAddresses();
            for (InterfaceAddress ia : ilist) {
                ips.put(ia.getAddress().getHostAddress());
            }
            iface.put("addresses", ips);

            ifaces.put(iface);
        }
    } else {
        for (String name : stats.keySet()) {
            JSONObject iface = new JSONObject();
            iface.put("name", name);
            iface.put("stats", stats.get(name));
            ifaces.put(iface);
        }
    }

    return ifaces;
}