/*
* Returns the string representation of the address that this
* listen key represents.
*/
public String address() {
InetAddress address = ss.getInetAddress();
/*
* If bound to the wildcard address then use current local
* hostname. In the event that we don't know our own hostname
* then assume that host supports IPv4 and return something to
* represent the loopback address.
*/
if (address.isAnyLocalAddress()) {
try {
address = InetAddress.getLocalHost();
} catch (UnknownHostException uhe) {
byte[] loopback = {0x7f, 0x00, 0x00, 0x01};
try {
address = InetAddress.getByAddress("127.0.0.1", loopback);
} catch (UnknownHostException x) {
throw new InternalError("unable to get local hostname");
}
}
}
/*
* Now decide if we return a hostname or IP address. Where possible
* return a hostname but in the case that we are bound to an
* address that isn't registered in the name service then we
* return an address.
*/
String result;
String hostname = address.getHostName();
String hostaddr = address.getHostAddress();
if (hostname.equals(hostaddr)) {
if (address instanceof Inet6Address) {
result = "[" + hostaddr + "]";
} else {
result = hostaddr;
}
} else {
result = hostname;
}
/*
* Finally return "hostname:port", "ipv4-address:port" or
* "[ipv6-address]:port".
*/
return result + ":" + ss.getLocalPort();
}
