Example usage for java.net InetAddress getHostAddress

List of usage examples for java.net InetAddress getHostAddress

  1. HOME
  2. Java
  3. java
  4. java.net.*
  5. InetAddress
  6. getHostAddress

Introduction

In this page you can find the example usage for java.net InetAddress getHostAddress.

Prototype

public String getHostAddress()

Source Link

Document

Returns the IP address string in textual presentation.

Usage

From source file:com.buaa.cfs.net.DNS.java

/**
 * Returns the hostname associated with the specified IP address by the provided nameserver.
 * <p>//  w w  w .java  2 s. co  m
 * Loopback addresses
 *
 * @param hostIp The address to reverse lookup
 * @param ns     The host name of a reachable DNS server
 *
 * @return The host name associated with the provided IP
 *
 * @throws NamingException If a NamingException is encountered
 */
public static String reverseDns(InetAddress hostIp, String ns) throws NamingException {
    //
    // Builds the reverse IP lookup form
    // This is formed by reversing the IP numbers and appending in-addr.arpa
    //
    String[] parts = hostIp.getHostAddress().split("\\.");
    String reverseIP = parts[3] + "." + parts[2] + "." + parts[1] + "." + parts[0] + ".in-addr.arpa";

    DirContext ictx = new InitialDirContext();
    Attributes attribute;
    try {
        attribute = ictx.getAttributes("dns://" // Use "dns:///" if the default
                + ((ns == null) ? "" : ns) +
                // nameserver is to be used
                "/" + reverseIP, new String[] { "PTR" });
    } finally {
        ictx.close();
    }

    String hostname = attribute.get("PTR").get().toString();
    int hostnameLength = hostname.length();
    if (hostname.charAt(hostnameLength - 1) == '.') {
        hostname = hostname.substring(0, hostnameLength - 1);
    }
    return hostname;
}

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

/**
 * Copied from transport.http of Axis2//w ww. java  2s.c  o  m
 *
 * 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:de.madvertise.android.sdk.MadUtil.java

/**
 * Fetch the address of the enabled interface
 * /*ww  w  .j a v a 2 s .c  om*/
 * @return ip address as string
 */
protected static String getLocalIpAddress() {
    try {
        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) {
        if (PRINT_LOG)
            Log.d(MadUtil.LOG, ex.toString());
    }
    return "";
}

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

/**
 * Returns the first real IP address it finds
 *
 * @return Real IP address or null if nothing available
 *///w  w w  .  j a v  a 2s.  c om
public static String getFirstIp4Address() {

    // Get all the physical adapters

    List<NetworkInterface> adapters = getNetworkAdapters();
    if (adapters.size() > 0) {
        for (NetworkInterface adapter : adapters) {

            // Loop through all the addresses

            Enumeration<InetAddress> addresses = adapter.getInetAddresses();
            while (addresses.hasMoreElements()) {
                InetAddress address = addresses.nextElement();

                // Only interested in non-loopback and IPv4 types

                if (!address.isLoopbackAddress() && address instanceof Inet4Address) {
                    return address.getHostAddress();
                }
            }
        }
    }
    return null;
}

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

/**
 * Get IP address from first non-localhost interface
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @param useIPv4  true=return ipv4, false=return ipv6
 * @return  address or empty string/* w  w w. ja v  a  2 s .  c  o  m*/
 */
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> inetAddresses = Collections.list(intf.getInetAddresses());
            for (InetAddress inetAddr : inetAddresses) {
                if (!inetAddr.isLoopbackAddress()) {
                    String address = inetAddr.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(address);
                    if (useIPv4) {
                        if (isIPv4) {
                            return address;
                        }
                    } else {
                        if (!isIPv4) {
                            int delim = address.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? address : address.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
}

From source file:org.apache.synapse.transport.passthru.api.PassThroughNHttpGetProcessor.java

/**
* Whatever this method returns as the IP is ignored by the actual http/s listener when
* its getServiceEPR is invoked. This was originally copied from axis2
*
* @return Returns String.//from ww w  . j ava 2s . c o m
* @throws java.net.SocketException if the socket can not be accessed
*/
protected static String getIpAddress() throws SocketException {
    Enumeration e = NetworkInterface.getNetworkInterfaces();
    String address = "127.0.0.1";

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

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

From source file:net.centro.rtb.monitoringcenter.infos.NodeInfo.java

private static String detectPublicIpAddress() {
    Enumeration<NetworkInterface> networkInterfaces = null;
    try {//w w  w .java  2 s.c om
        networkInterfaces = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        logger.debug("Unable to obtain network interfaces!", e);
        return null;
    }

    for (NetworkInterface networkInterface : Collections.list(networkInterfaces)) {
        boolean isLoopback = false;
        try {
            isLoopback = networkInterface.isLoopback();
        } catch (SocketException e) {
            logger.debug("Unable to identify if a network interface is a loopback or not");
        }

        if (!isLoopback) {
            Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
            while (inetAddresses.hasMoreElements()) {
                InetAddress inetAddress = inetAddresses.nextElement();
                if (Inet4Address.class.isInstance(inetAddress)) {
                    if (!inetAddress.isLoopbackAddress() && !inetAddress.isAnyLocalAddress()
                            && !inetAddress.isLinkLocalAddress() && !inetAddress.isSiteLocalAddress()) {
                        return inetAddress.getHostAddress();
                    }
                }
            }
        }
    }

    return null;
}

From source file:com.alibaba.jstorm.utils.NetWorkUtils.java

public static List<String> host2Ip(List<String> servers) {
    if (servers == null || servers.size() == 0) {
        return new ArrayList<String>();
    }//www  .  ja v a 2 s  . c o  m

    Set<String> ret = new HashSet<String>();
    for (String server : servers) {
        if (StringUtils.isBlank(server)) {
            continue;
        }

        InetAddress ia;
        try {
            ia = InetAddress.getByName(server);
        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            LOG.info("Fail to get address of ", server);
            continue;
        }
        if (ia.isLoopbackAddress() || ia.isAnyLocalAddress()) {
            ret.add(NetWorkUtils.ip());
        } else {
            ret.add(ia.getHostAddress());
        }
    }

    return JStormUtils.mk_list(ret);
}

From source file:org.fdroid.enigtext.mms.MmsCommunication.java

private static void checkRouteToHost(Context context, String host, boolean usingMmsRadio) throws IOException {
    InetAddress inetAddress = InetAddress.getByName(host);

    if (!usingMmsRadio) {
        if (inetAddress.isSiteLocalAddress()) {
            throw new IOException("RFC1918 address in non-MMS radio situation!");
        }/*  www  .  j  ava  2  s  . co  m*/

        return;
    }

    Log.w("MmsCommunication", "Checking route to address: " + host + " , " + inetAddress.getHostAddress());

    byte[] ipAddressBytes = inetAddress.getAddress();

    if (ipAddressBytes != null && ipAddressBytes.length == 4) {
        int ipAddress = Conversions.byteArrayToIntLittleEndian(ipAddressBytes, 0);
        ConnectivityManager manager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        if (!manager.requestRouteToHost(MmsDownloader.TYPE_MOBILE_MMS, ipAddress))
            throw new IOException("Connection manager could not obtain route to host.");
    }
}

From source file:gridool.util.GridUtils.java

/**
 * @return hostname(255.255.255.255):77777
 *//*from w  w w  .  j  a  va  2  s  .co m*/
public static String toHostNameAddrPort(@Nonnull final GridNode node) {
    InetAddress addr = node.getPhysicalAdress();
    String hostname = addr.getHostName();
    String ipAddr = addr.getHostAddress();
    int port = node.getPort();
    return hostname + '(' + ipAddr + "):" + port;
}