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:org.magnum.dataup.VideoController.java

private static InetAddress getLocalHostLANAddress() throws UnknownHostException {
    try {//from  ww w  .jav a2 s. c o m
        InetAddress candidateAddress = null;
        // Iterate all NICs (network interface cards)...
        for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements();) {
            NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
            // Iterate all IP addresses assigned to each card...
            for (Enumeration 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...
                        return inetAddr;
                    } 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.
                    }
                }
            }
        }
        if (candidateAddress != null) {
            // We did not find a site-local address, but we found some other non-loopback address.
            // Server might have a non-site-local address assigned to its NIC (or it might be running
            // IPv6 which deprecates the "site-local" concept).
            // Return this non-loopback candidate address...
            return candidateAddress;
        }
        // At this point, we did not find a non-loopback address.
        // Fall back to returning whatever InetAddress.getLocalHost() returns...
        InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
        if (jdkSuppliedAddress == null) {
            throw new UnknownHostException(
                    "The JDK InetAddress.getLocalHost() method unexpectedly returned null.");
        }
        return jdkSuppliedAddress;
    } catch (Exception e) {
        UnknownHostException unknownHostException = new UnknownHostException(
                "Failed to determine LAN address: " + e);
        unknownHostException.initCause(e);
        throw unknownHostException;
    }
}

From source file:org.peercast.core.PeerCastServiceController.java

private String getIpAddress() {
    Enumeration<NetworkInterface> netIFs;
    try {/*w  w  w. j  a v a 2 s .c  o m*/
        netIFs = NetworkInterface.getNetworkInterfaces();
        while (netIFs.hasMoreElements()) {
            NetworkInterface netIF = netIFs.nextElement();
            Enumeration<InetAddress> ipAddrs = netIF.getInetAddresses();
            while (ipAddrs.hasMoreElements()) {
                InetAddress ip = ipAddrs.nextElement();
                if (!ip.isLoopbackAddress() && !ip.isLinkLocalAddress() && ip.isSiteLocalAddress()) {
                    String ipStr = ip.getHostAddress().toString();
                    Log.d(TAG, "IP: " + ipStr);
                    return ipStr;
                }
            }
        }
    } catch (SocketException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:com.ghgande.j2mod.modbus.utils.TestUtils.java

/**
 * Returns the last adapter it finds that is not a loopback
 *
 * @return Adapter to use//w  ww  . j av a 2 s.com
 */
public static List<NetworkInterface> getNetworkAdapters() {
    List<NetworkInterface> returnValue = new ArrayList<NetworkInterface>();
    try {

        // Loop round all the adapters

        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (networkInterfaces.hasMoreElements()) {

            // Get the MAC address if it exists

            NetworkInterface network = networkInterfaces.nextElement();
            byte[] mac = network.getHardwareAddress();
            if (mac != null && mac.length > 0 && network.getInterfaceAddresses() != null) {
                returnValue.add(network);
                logger.debug("Current MAC address : {} ({})", returnValue, network.getDisplayName());
            }
        }
    } catch (Exception e) {
        logger.error("Cannot determine the local MAC address - {}", e.getMessage());
    }
    return returnValue;
}

From source file:com.sixt.service.framework.registry.consul.RegistrationManager.java

private void updateIpAddress() {
    try {/*from   www  .  j  a v  a2s. c  o  m*/
        Enumeration<NetworkInterface> b = NetworkInterface.getNetworkInterfaces();
        ipAddress = null;
        while (b.hasMoreElements()) {
            NetworkInterface iface = b.nextElement();
            if (iface.getName().startsWith("dock")) {
                continue;
            }
            for (InterfaceAddress f : iface.getInterfaceAddresses()) {
                if (f.getAddress().isSiteLocalAddress()) {
                    ipAddress = f.getAddress().getHostAddress();
                }
            }
        }
    } catch (SocketException e) {
        e.printStackTrace();
    }
}

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();
        }/*from  www . j  a  v a  2s.co m*/
    }
    return InetAddress.getLocalHost();
}

From source file:org.gluu.oxtrust.ldap.cache.service.CacheRefreshTimer.java

private boolean isStartCacheRefresh(CacheRefreshConfiguration cacheRefreshConfiguration,
        GluuAppliance currentAppliance) {
    if (!GluuBoolean.ENABLED.equals(currentAppliance.getVdsCacheRefreshEnabled())) {
        return false;
    }//from   w w  w.  ja  v a2 s . co m

    long poolingInterval = StringHelper.toInteger(currentAppliance.getVdsCacheRefreshPollingInterval()) * 60
            * 1000;
    if (poolingInterval < 0) {
        return false;
    }

    String cacheRefreshServerIpAddress = currentAppliance.getCacheRefreshServerIpAddress();
    if (StringHelper.isEmpty(cacheRefreshServerIpAddress)) {
        log.debug("There is no master Cache Refresh server");
        return false;
    }

    // Compare server IP address with cacheRefreshServerIp
    boolean cacheRefreshServer = false;
    try {
        Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface networkInterface : Collections.list(nets)) {
            Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                if (StringHelper.equals(cacheRefreshServerIpAddress, inetAddress.getHostAddress())) {
                    cacheRefreshServer = true;
                    break;
                }
            }

            if (cacheRefreshServer) {
                break;
            }
        }
    } catch (SocketException ex) {
        log.error("Failed to enumerate server IP addresses", ex);
    }

    if (!cacheRefreshServer) {
        log.debug("This server isn't master Cache Refresh server");
        return false;
    }

    // Check if cache refresh specific configuration was loaded
    if (cacheRefreshConfiguration == null) {
        log.info(
                "Failed to start cache refresh. Can't loading configuration from oxTrustCacheRefresh.properties");
        return false;
    }

    long timeDiffrence = System.currentTimeMillis() - this.lastFinishedTime;

    return timeDiffrence >= poolingInterval;
}

From source file:net.pms.newgui.NetworkTab.java

public JComponent build() {
    FormLayout layout = new FormLayout("left:pref, 2dlu, p, 2dlu , p, 2dlu, p, 2dlu, pref:grow",
            "p, 0dlu, p, 0dlu, p, 3dlu, p, 3dlu, p, 3dlu,p, 3dlu, p, 15dlu, p, 3dlu,p, 3dlu, p,  3dlu, p, 3dlu, p, 3dlu, p,3dlu, p, 3dlu, p, 15dlu, p,3dlu, p, 3dlu, p, 15dlu, p, 3dlu, p");
    PanelBuilder builder = new PanelBuilder(layout);
    builder.setBorder(Borders.DLU4_BORDER);
    builder.setOpaque(true);//from   w  ww.j  a  v  a2s  .  co m

    CellConstraints cc = new CellConstraints();

    smcheckBox = new JCheckBox(Messages.getString("NetworkTab.3"));
    smcheckBox.setContentAreaFilled(false);
    smcheckBox.addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
            PMS.getConfiguration().setMinimized((e.getStateChange() == ItemEvent.SELECTED));
        }
    });
    if (PMS.getConfiguration().isMinimized()) {
        smcheckBox.setSelected(true);
    }

    JComponent cmp = builder.addSeparator(Messages.getString("NetworkTab.5"), cc.xyw(1, 1, 9));
    cmp = (JComponent) cmp.getComponent(0);
    cmp.setFont(cmp.getFont().deriveFont(Font.BOLD));

    builder.addLabel(Messages.getString("NetworkTab.0"), cc.xy(1, 7));
    final KeyedComboBoxModel kcbm = new KeyedComboBoxModel(
            new Object[] { "bg", "ca", "zhs", "zht", "cz", "da", "nl", "en", "fi", "fr", "de", "el", "is", "it",
                    "ja", "no", "pl", "pt", "br", "ro", "ru", "sl", "es", "sv" },
            new Object[] { "Bulgarian", "Catalan", "Chinese (Simplified)", "Chinese (Traditional)", "Czech",
                    "Danish", "Dutch", "English", "Finnish", "French", "German", "Greek", "Icelandic",
                    "Italian", "Japanese", "Norwegian", "Polish", "Portuguese", "Portuguese (Brazilian)",
                    "Romanian", "Russian", "Slovenian", "Spanish", "Swedish" });
    langs = new JComboBox(kcbm);
    langs.setEditable(false);
    //langs.setSelectedIndex(0);
    String defaultLang = null;
    if (configuration.getLanguage() != null && configuration.getLanguage().length() > 0) {
        defaultLang = configuration.getLanguage();
    } else {
        defaultLang = Locale.getDefault().getLanguage();
    }
    if (defaultLang == null) {
        defaultLang = "en";
    }
    kcbm.setSelectedKey(defaultLang);
    if (langs.getSelectedIndex() == -1) {
        langs.setSelectedIndex(0);
    }

    langs.addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
            if (e.getStateChange() == ItemEvent.SELECTED) {
                configuration.setLanguage((String) kcbm.getSelectedKey());

            }
        }
    });
    builder.add(langs, cc.xyw(3, 7, 7));

    builder.add(smcheckBox, cc.xyw(1, 9, 9));

    JButton service = new JButton(Messages.getString("NetworkTab.4"));
    service.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            if (PMS.get().installWin32Service()) {
                JOptionPane.showMessageDialog(
                        (JFrame) (SwingUtilities.getWindowAncestor((Component) PMS.get().getFrame())),
                        Messages.getString("NetworkTab.11") + Messages.getString("NetworkTab.12"),
                        "Information", JOptionPane.INFORMATION_MESSAGE);

            } else {
                JOptionPane.showMessageDialog(
                        (JFrame) (SwingUtilities.getWindowAncestor((Component) PMS.get().getFrame())),
                        Messages.getString("NetworkTab.14"), "Error", JOptionPane.ERROR_MESSAGE);
            }
        }
    });
    builder.add(service, cc.xy(1, 11));
    if (System.getProperty(LooksFrame.START_SERVICE) != null || !Platform.isWindows()) {
        service.setEnabled(false);
    }

    host = new JTextField(PMS.getConfiguration().getServerHostname());
    host.addKeyListener(new KeyListener() {

        @Override
        public void keyPressed(KeyEvent e) {
        }

        @Override
        public void keyTyped(KeyEvent e) {
        }

        @Override
        public void keyReleased(KeyEvent e) {
            configuration.setHostname(host.getText());
            PMS.get().getFrame().setReloadable(true);
        }
    });
    // host.setEnabled( StringUtils.isBlank(configuration.getNetworkInterface())) ;
    port = new JTextField(configuration.getServerPort() != 5001 ? "" + configuration.getServerPort() : "");
    port.addKeyListener(new KeyListener() {

        @Override
        public void keyPressed(KeyEvent e) {
        }

        @Override
        public void keyTyped(KeyEvent e) {
        }

        @Override
        public void keyReleased(KeyEvent e) {
            try {
                String p = port.getText();
                if (StringUtils.isEmpty(p)) {
                    p = "5001";
                }
                int ab = Integer.parseInt(p);
                configuration.setServerPort(ab);
                PMS.get().getFrame().setReloadable(true);
            } catch (NumberFormatException nfe) {
            }

        }
    });

    cmp = builder.addSeparator(Messages.getString("NetworkTab.22"), cc.xyw(1, 21, 9));
    cmp = (JComponent) cmp.getComponent(0);
    cmp.setFont(cmp.getFont().deriveFont(Font.BOLD));

    ArrayList<String> names = new ArrayList<String>();
    names.add("");
    ArrayList<String> interfaces = new ArrayList<String>();
    interfaces.add("");
    Enumeration<NetworkInterface> enm;
    try {
        enm = NetworkInterface.getNetworkInterfaces();
        while (enm.hasMoreElements()) {
            NetworkInterface ni = enm.nextElement();
            // check for interface has at least one ip address.
            if (ni.getInetAddresses().hasMoreElements()) {
                names.add(ni.getName());
                String displayName = ni.getDisplayName();
                if (displayName == null) {
                    displayName = ni.getName();
                }
                interfaces.add(displayName.trim());
            }
        }
    } catch (SocketException e1) {
        logger.error(null, e1);
    }

    final KeyedComboBoxModel networkInterfaces = new KeyedComboBoxModel(names.toArray(), interfaces.toArray());
    networkinterfacesCBX = new JComboBox(networkInterfaces);
    networkInterfaces.setSelectedKey(configuration.getNetworkInterface());
    networkinterfacesCBX.addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
            if (e.getStateChange() == ItemEvent.SELECTED) {
                configuration.setNetworkInterface((String) networkInterfaces.getSelectedKey());
                //host.setEnabled( StringUtils.isBlank(configuration.getNetworkInterface())) ;
                PMS.get().getFrame().setReloadable(true);
            }
        }
    });

    ip_filter = new JTextField(PMS.getConfiguration().getIpFilter());
    ip_filter.addKeyListener(new KeyListener() {

        @Override
        public void keyPressed(KeyEvent e) {
        }

        @Override
        public void keyTyped(KeyEvent e) {
        }

        @Override
        public void keyReleased(KeyEvent e) {
            configuration.setIpFilter(ip_filter.getText());
            PMS.get().getFrame().setReloadable(true);
        }
    });

    builder.addLabel(Messages.getString("NetworkTab.20"), cc.xy(1, 23));
    builder.add(networkinterfacesCBX, cc.xyw(3, 23, 7));
    builder.addLabel(Messages.getString("NetworkTab.23"), cc.xy(1, 25));
    builder.add(host, cc.xyw(3, 25, 7));
    builder.addLabel(Messages.getString("NetworkTab.24"), cc.xy(1, 27));
    builder.add(port, cc.xyw(3, 27, 7));
    builder.addLabel(Messages.getString("NetworkTab.30"), cc.xy(1, 29));
    builder.add(ip_filter, cc.xyw(3, 29, 7));

    cmp = builder.addSeparator(Messages.getString("NetworkTab.31"), cc.xyw(1, 31, 9));
    cmp = (JComponent) cmp.getComponent(0);
    cmp.setFont(cmp.getFont().deriveFont(Font.BOLD));

    newHTTPEngine = new JCheckBox(Messages.getString("NetworkTab.32"));
    newHTTPEngine.setSelected(PMS.getConfiguration().isHTTPEngineV2());
    newHTTPEngine.addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
            PMS.getConfiguration().setHTTPEngineV2((e.getStateChange() == ItemEvent.SELECTED));
        }
    });
    builder.add(newHTTPEngine, cc.xyw(1, 33, 9));

    preventSleep = new JCheckBox(Messages.getString("NetworkTab.33"));
    preventSleep.setSelected(PMS.getConfiguration().isPreventsSleep());
    preventSleep.addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
            PMS.getConfiguration().setPreventsSleep((e.getStateChange() == ItemEvent.SELECTED));
        }
    });
    builder.add(preventSleep, cc.xyw(1, 35, 9));

    cmp = builder.addSeparator(Messages.getString("NetworkTab.34"), cc.xyw(1, 37, 9));
    cmp = (JComponent) cmp.getComponent(0);
    cmp.setFont(cmp.getFont().deriveFont(Font.BOLD));

    JPanel panel = builder.getPanel();
    JScrollPane scrollPane = new JScrollPane(panel, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    return scrollPane;
}

From source file:org.basdroid.common.NetworkUtils.java

/**
 * Returns MAC address of the given interface name.
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return  mac address or empty string/*  w  w  w  .  j  av  a  2s. co m*/
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                Log.d(TAG, "intf.getName() = " + intf.getName());
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++) {
                buf.append(String.format("%02X:", mac[idx]));
            }
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
}

From source file:net.sbbi.upnp.Discovery.java

private static UPNPRootDevice[] discoverDevices(int timeOut, int ttl, int mx, String searchTarget,
        NetworkInterface ni) throws IOException {
    if (searchTarget == null || searchTarget.trim().length() == 0) {
        throw new IllegalArgumentException("Illegal searchTarget");
    }// www. jav  a  2 s .c  o m

    final Map devices = new HashMap();

    DiscoveryResultsHandler handler = new DiscoveryResultsHandler() {

        public void discoveredDevice(String usn, String udn, String nt, String maxAge, URL location,
                String firmware) {
            synchronized (devices) {
                if (!devices.containsKey(usn)) {
                    try {
                        UPNPRootDevice device = new UPNPRootDevice(location, maxAge, firmware, usn, udn);
                        devices.put(usn, device);
                    } catch (Exception ex) {
                        log.error("Error occured during upnp root device object creation from location "
                                + location, ex);
                    }
                }
            }
        }
    };

    DiscoveryListener.getInstance().registerResultsHandler(handler, searchTarget);
    if (ni == null) {
        for (Enumeration e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements();) {
            NetworkInterface intf = (NetworkInterface) e.nextElement();
            for (Enumeration adrs = intf.getInetAddresses(); adrs.hasMoreElements();) {
                InetAddress adr = (InetAddress) adrs.nextElement();
                if (adr instanceof Inet4Address && !adr.isLoopbackAddress()) {
                    sendSearchMessage(adr, ttl, mx, searchTarget);
                }
            }
        }
    } else {
        for (Enumeration adrs = ni.getInetAddresses(); adrs.hasMoreElements();) {
            InetAddress adr = (InetAddress) adrs.nextElement();
            if (adr instanceof Inet4Address && !adr.isLoopbackAddress()) {
                sendSearchMessage(adr, ttl, mx, searchTarget);
            }
        }
    }

    try {
        Thread.sleep(timeOut);
    } catch (InterruptedException ex) {
        // don't care
    }

    DiscoveryListener.getInstance().unRegisterResultsHandler(handler, searchTarget);

    if (devices.size() == 0) {
        return null;
    }
    int j = 0;
    UPNPRootDevice[] rootDevices = new UPNPRootDevice[devices.size()];
    for (Iterator i = devices.values().iterator(); i.hasNext();) {
        rootDevices[j++] = (UPNPRootDevice) i.next();
    }
    return rootDevices;

}

From source file:com.cellbots.httpserver.HttpCommandServer.java

public String getLocalIpAddress() {
    try {/*from w w  w. j av  a2s  . c om*/
        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("", ex.toString());
    }
    return null;
}