/** INTERNAL: Send out an announcement that we are here. */
public void announceSession() {
rcm.logDebug("sending_announcement", (Object[]) null);
ServiceAnnouncement outMsg = new ServiceAnnouncement(rcm.getServiceId());
byte[] outBytes = outMsg.toBytes();
try {
// Create a packet to send and send it out to everyone listening
DatagramPacket sendPacket =
new DatagramPacket(
outBytes,
outBytes.length,
InetAddress.getByName(multicastGroupAddress),
multicastPort);
getCommunicationSocket().send(sendPacket);
Object[] args = null;
rcm.logInfo("announcement_sent", args);
} catch (Exception ex) {
// We got an exception. Map it to an RCM exception and call the handler
DiscoveryException discoveryEx = DiscoveryException.errorSendingAnnouncement(ex);
rcm.handleException(discoveryEx);
}
}
/** INTERNAL: Create the multicast socket and join the multicast group. */
public void createCommunicationSocket() {
Object[] args = {multicastGroupAddress, "" + multicastPort};
rcm.logDebug("initializing_discovery_resources", args);
if (communicationSocket == null) {
try {
communicationSocket = new MulticastSocket(multicastPort);
communicationSocket.setTimeToLive(getPacketTimeToLive());
communicationSocket.joinGroup(InetAddress.getByName(multicastGroupAddress));
} catch (IOException ex) {
// Either we couldn't create the socket or we couldn't join the group
DiscoveryException discoveryEx = DiscoveryException.errorJoiningMulticastGroup(ex);
rcm.handleException(discoveryEx);
}
}
}