public List<String> call() throws IOException {
List<String> names = new ArrayList<String>();
Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
while (nis.hasMoreElements()) {
NetworkInterface ni = nis.nextElement();
LOGGER.fine("Listing up IP addresses for " + ni.getDisplayName());
Enumeration<InetAddress> e = ni.getInetAddresses();
while (e.hasMoreElements()) {
InetAddress ia = e.nextElement();
if (ia.isLoopbackAddress()) {
LOGGER.fine(ia + " is a loopback address");
continue;
}
if (!(ia instanceof Inet4Address)) {
LOGGER.fine(ia + " is not an IPv4 address");
continue;
}
LOGGER.fine(ia + " is a viable candidate");
names.add(ia.getHostAddress());
}
}
return names;
}
/** Used for CLI binding. */
@CLIResolver
public static Computer resolveForCLI(
@Argument(required = true, metaVar = "NAME", usage = "Slave name, or empty string for master")
String name)
throws CmdLineException {
Jenkins h = Jenkins.getInstance();
Computer item = h.getComputer(name);
if (item == null) {
List<String> names = new ArrayList<String>();
for (Computer c : h.getComputers()) if (c.getName().length() > 0) names.add(c.getName());
throw new CmdLineException(
null, Messages.Computer_NoSuchSlaveExists(name, EditDistance.findNearest(name, names)));
}
return item;
}