Java Utililty Methods Socket Address Get

String clientAddress;
if (remoteAddress instanceof InetSocketAddress) {
    clientAddress = ((InetSocketAddress) remoteAddress).getHostName();
} else {
    clientAddress = remoteAddress.toString();
return clientAddress;

if (null != address.getAddress())
    return address.getAddress().getHostAddress();
else if (null != address.getHostName()) {
    if (address.getHostName().contains("/")) {
        int index = address.getHostName().indexOf("/");
        return address.getHostName().substring(index + 1);
    } else
        return address.getHostName();
...

if (s instanceof InetSocketAddress) {
    final InetSocketAddress addr = (InetSocketAddress) s;
    if (addr.getPort() == defaultPort) {
        return safeHostname(hostname(addr));
    return format(hostname(addr), addr.getPort());
return s.toString();
...

InetAddress ia = addr.getAddress();
if (ia == null) {
    return String.format("%s:%s", addr.getHostString(), addr.getPort());
if (ia instanceof Inet6Address) {
    return String.format("[%s]:%s", ia.getHostAddress(), addr.getPort());
} else {
    return String.format("%s:%s", ia.getHostAddress(), addr.getPort());
...

if (inetSocketAddress == null) {
    throw new NullPointerException("inetSocketAddress");
final StringBuilder builder = new StringBuilder();
final InetAddress inetAddress = inetSocketAddress.getAddress();
if (inetAddress instanceof Inet6Address) {
    builder.append("[");
    builder.append(inetAddress.getHostAddress());
...

InetSocketAddress inetSocketAddress = (InetSocketAddress) address;
return inetSocketAddress.getAddress().getHostAddress() + ":" + inetSocketAddress.getPort();

InetAddress servAddr = address.getAddress();
int servPort = address.getPort();
StringBuilder builder = new StringBuilder();
String hostaddress = servAddr.getHostAddress();
builder.append('|');
if (hostaddress.contains(":")) {
    builder.append('2'); 
} else {
...

if (arg == null || arg.length() == 0) {
    return null;
String delim = arg.substring(0, 1);
String[] infos = arg.split(delim);
if (infos.length != 3) {
    return null;
boolean isIPV4 = true;
if (infos[0].equals("1")) {
    isIPV4 = true;
} else if (infos[0].equals("2")) {
    isIPV4 = false;
} else {
    return null;
byte[] address = null;
if (isIPV4) {
    address = new byte[4];
    String[] elements = infos[1].split(".");
    if (elements.length != 4) {
        return null;
    for (int i = 0; i < 4; i++) {
        try {
            address[i] = (byte) Integer.parseInt(elements[i]);
        } catch (NumberFormatException e) {
            return null;
} else {
    address = new byte[16];
    int[] value = new int[8];
    String[] elements = infos[1].split(":");
    if (elements.length != 8) {
        return null;
    for (int i = 0, j = 0; i < 8; i++) {
        if (elements[i] == null || elements[i].length() == 0) {
            value[i] = 0;
        } else {
            try {
                value[i] = Integer.parseInt(elements[i]);
            } catch (NumberFormatException e) {
                return null;
        address[j++] = (byte) (value[i] >> 8);
        address[j++] = (byte) (value[i] & 0xFF);
int port = 0;
try {
    port = Integer.parseInt(infos[2]);
} catch (NumberFormatException e) {
    return null;
InetAddress inetAddress;
try {
    inetAddress = InetAddress.getByAddress(address);
} catch (UnknownHostException e) {
    return null;
return new InetSocketAddress(inetAddress, port);

String val[] = addr.split(Pattern.quote("/"));
if ((val == null) || (val.length == 0))
    return null;
String ip_port = val[val.length - 1];
String[] split = ip_port.split(Pattern.quote(":"));
if (split.length == 0)
    return null;
return split[0];
...

if (address.getAddress() != null) {
    return address.getAddress().getHostAddress();
} else {
    return address.getHostName();