Server Structure(con't)
public class FileClassifierServer implements DiscoveryListener {
protected LeaseRenewalManager leaseManager = new LeaseRenewalManager();
public static void main(String argv[]) {
new FileClassifierServer();
// keep server running (almost) forever to
// - allow time for locator discovery and
// - keep re-registering the lease
Thread.currentThread().sleep(Lease.FOREVER);
}
public FileClassifierServer() {
LookupDiscovery discover = null;
// Prepare for discovery - empty here
// Discover a lookup service
// This uses the asynchronous multicast protocol,
// which calls back into the discovered() method
discover = new LookupDiscovery(LookupDiscovery.ALL_GROUPS);
discover.addDiscoveryListener(this);
}
public void discovered(DiscoveryEvent evt) {
ServiceRegistrar registrar = evt.getRegistrars()[0];
// At this point we have discovered a lookup service
// Create information about a service
ServiceItem item = new ServiceItem(null, new FileClassifierImpl(), null);
// Export a service
ServiceRegistration reg = registrar.register(item, Lease.FOREVER);
// Renew leasing
leaseManager.renewUntil(reg.getLease(), Lease.FOREVER, this);
}
} // FileClassifierServer