Java Utililty Methods IP Address Get

List of utility methods to do IP Address Get

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Description

The list of methods to do IP Address Get are organized into topic(s).

Method

StringgetHostIPByHostName(String host)
get Host IP By Host Name 
InetAddress inetAddress;
try {
    inetAddress = InetAddress.getByName(host);
    return inetAddress.getHostAddress();
} catch (UnknownHostException e) {
    e.printStackTrace();
return null;
...
ListgetInetIps()
get Inet Ips 
List<String> ipList = new LinkedList<>();
try {
    Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
    NetworkInterface networkInterface;
    Enumeration<InetAddress> inetAddresses;
    InetAddress inetAddress;
    String ip;
    while (networkInterfaces.hasMoreElements()) {
...
InputStreamgetIniFileInputStreamEclipse()
Get the bpel4chor.ini file InputStream, the File Path is provided from eclipse bundle. 
InputStream in = null;
Bundle bundle = Platform.getBundle("org.bpel4chor.model");
Path path = new Path("config/bpel4chor.ini");
URL fileURL = FileLocator.find(bundle, path, null);
try {
    if (fileURL != null) {
        URL absoluteUrl = Platform.resolve(fileURL);
        in = absoluteUrl.openStream();
...
InputStreamgetInputStreamFromZipFile(String zipFilePath, String resourcePath)
get Input Stream From Zip File 
URL metadata = new URL(String.format("jar:file:%s!/%s", zipFilePath, resourcePath));
return metadata.openStream();
InetAddressgetInterfaceAddress(final String ifaceName, final boolean ipV4)
Get the first address found for the given interface. 
try {
    NetworkInterface iface = NetworkInterface.getByName(ifaceName);
    for (InetAddress ifAddr : Collections.list(iface.getInetAddresses())) {
        if (ifAddr instanceof Inet4Address && ipV4) {
            return ifAddr;
        } else if (ifAddr instanceof Inet6Address && !ipV4) {
            return ifAddr;
    return null;
} catch (SocketException ex) {
    return null;
TreeSetgetInterfaceIPs()
Gets every IPv4 Address on each Interface except the loopback The Address format is ip/subnet 
TreeSet<String> interfaceIPs = new TreeSet<String>();
try {
    for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
            .hasMoreElements();) {
        NetworkInterface networkInterface = en.nextElement();
        if (!networkInterface.isLoopback()) {
            for (Iterator<InterfaceAddress> it = networkInterface.getInterfaceAddresses().iterator(); it
                    .hasNext();) {
...
StringgetInternalIp()
get Internal Ip 
Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();
while (ifaces.hasMoreElements()) {
    NetworkInterface iface = ifaces.nextElement();
    Enumeration<InetAddress> addresses = iface.getInetAddresses();
    while (addresses.hasMoreElements()) {
        InetAddress addr = addresses.nextElement();
        if (addr instanceof Inet4Address && !addr.isLoopbackAddress()) {
            return addr.getHostAddress();
...
StringgetInternalIp()
Get the internal IP of the machine where is launched Messic 
InetAddress thisIp = getLocalHostLANAddress();
return thisIp.getHostAddress().toString();
StringgetInternetIpAddress()
get Internet Ip Address 
URL oUrl = new URL("http://checkip.amazonaws.com");
BufferedReader brINPUT = null;
try {
    brINPUT = new BufferedReader(new InputStreamReader(oUrl.openStream()));
    String strReturnIP = brINPUT.readLine();
    return strReturnIP;
} finally {
    if (brINPUT != null) {
...
intgetIntfFromLabelAdva(int n, Inet4Address ip)
get Intf From Label Adva 
if ((n == 5) && (ip.getHostAddress().equals("172.16.1.40"))) {
    return 27;
} else if ((n == 8) && (ip.getHostAddress().equals("172.16.1.40"))) {
    return 25;
} else if ((n == 8) && (ip.getHostAddress().equals("172.16.1.38"))) {
    return 21;
} else if ((n == 7) && (ip.getHostAddress().equals("172.16.1.38"))) {
    return 17;
...