/**
* Constructs a <CODE>DiscoveryResponder</CODE>.
*
* <p>This constructor initialize multicast group and a multicast port. No check is done on the
* parameter values. Check will be performed by the start method.
*
* @param multicastGroup The multicast group name.
* @param multicastPort The multicast port number.
* @param inf the interface used by a MulticastSocket.
* @param local the local host address used to answer a request.
*/
public DiscoveryResponder(
String multicastGroup, int multicastPort, InetAddress inf, String local) {
// ----------------
// initialization
// ----------------
this.multicastGroup = multicastGroup;
this.multicastPort = multicastPort;
if (inf != null && !org.jocean.jdmk.internal.Useful.isLocalHost(inf)) {
throw new IllegalArgumentException(
"The user specified multi cast group is not a local interface: " + inf);
}
usrInet = inf;
if (local != null && !org.jocean.jdmk.internal.Useful.isLocalHost(local)) {
throw new IllegalArgumentException("The user specified local host is not a local: " + local);
}
this.local = local;
if (logger.finerOn()) {
logger.finer("constructor ", "Set group to '" + multicastGroup + "'");
logger.finer("constructor ", "Set port to '" + multicastPort + "'");
if (inf != null) {
logger.finer("constructor ", "Set interface to '" + inf + "'");
}
if (local != null) {
logger.finer("constructor ", "Set the local host to '" + local + "'");
}
}
}