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package net.sourceforge.cruisecontrol.distributed.util;
import java.rmi.RemoteException;
import net.jini.core.lookup.ServiceItem;
import net.jini.core.lookup.ServiceMatches;
import net.jini.core.lookup.ServiceRegistrar;
import net.jini.core.lookup.ServiceTemplate;
import net.sourceforge.cruisecontrol.distributed.core.MulticastDiscovery;
import org.apache.log4j.Logger;
/**
* This utility class finds Jini registrars on the local subnet and itemizes
* each of their registered services. It is needed solely for testing purposes.
*
* Run the main() method to see the local Jini services.
*/
public final class JiniLookUpUtility {
private static final Logger LOG = Logger.getLogger(JiniLookUpUtility.class);
private JiniLookUpUtility() {
MulticastDiscovery.begin();
final String waitMessage = "Waiting 5 seconds for registrars to report in...";
System.out.println(waitMessage);
LOG.info(waitMessage);
try {
try {
Thread.sleep(5000);
} catch (InterruptedException e1) {
// ignore
}
final ServiceRegistrar[] registrars = MulticastDiscovery.getRegistrars();
System.out.println("\nFound " + registrars.length + " Lookup Services.");
for (final ServiceRegistrar registrar : registrars) {
final String registrarInfo = "Registrar: " + registrar.getServiceID();
System.out.println(registrarInfo);
LOG.debug(registrarInfo);
final ServiceTemplate template = new ServiceTemplate(null, null, null);
final ServiceMatches matches = registrar.lookup(template, Integer.MAX_VALUE);
final ServiceItem[] items = matches.items;
for (final ServiceItem item : items) {
final String serviceInfo = " Service: " + item.service;
System.out.println(serviceInfo);
LOG.debug(serviceInfo);
}
}
} catch (RemoteException e) {
final String message = "Search failed due to an unexpected error";
LOG.error(message, e);
System.err.println(waitMessage + " - " + e.getMessage());
throw new RuntimeException(message, e);
}
}
public static void main(final String[] args) {
new JiniLookUpUtility();
}
}