package basic;

import net.jini.discovery.LookupDiscovery;
import net.jini.discovery.DiscoveryListener;
import net.jini.discovery.DiscoveryEvent;
import net.jini.core.lookup.ServiceRegistrar;

/**
 * MulticastRegister.java
 *
 *
 * Created: Fri Mar 12 22:49:33 1999
 *
 * @author Jan Newmarch
 * @version 1.2
 *    renamed as MulticastRegister
 *    moved sleep() to main() from constructor
 *    moved to package basic
 */

public class MulticastRegister implements DiscoveryListener {
 
    static public void main(String argv[]) {
        new MulticastRegister();

	// stay around long enough to receive replies
	try {
	    Thread.currentThread().sleep(10000L);
	} catch(java.lang.InterruptedException e) {
	    // do nothing
	}
    }
      
    public MulticastRegister() {
	System.setSecurityManager(new java.rmi.RMISecurityManager());
        LookupDiscovery discover = null;
        try {
            discover = new LookupDiscovery(LookupDiscovery.ALL_GROUPS);
        } catch(Exception e) {
            System.err.println(e.toString());
	    e.printStackTrace();
	    System.exit(1);
        }

	/*
	    System.out.println("Class " + discover.getClass().toString());
	    Object [] signers = discover.getClass().getSigners();
	    if (signers == null) {
		System.out.println("No signers");
	    } else {
		System.out.println("Signers");
		for (int m = 0; m < signers.length; m++)
		    System.out.println(signers[m].toString());
	    }
	    java.security.CodeSource codeSource = discover.
		getClass().getProtectionDomain().
		getCodeSource();
	    System.out.println("CodeSource " + codeSource.toString());
	*/


        discover.addDiscoveryListener(this);
    }
    
    public void discovered(DiscoveryEvent evt) {

        ServiceRegistrar[] registrars = evt.getRegistrars();

        for (int n = 0; n < registrars.length; n++) {
	    ServiceRegistrar registrar = registrars[n];
	    /*
	    System.out.println("Class " + registrar.getClass().toString());
	    Object [] signers = registrar.getClass().getSigners();
	    if (signers == null) {
		System.out.println("No signers");
	    } else {
		System.out.println("Signers");
		for (int m = 0; m < signers.length; m++)
		    System.out.println(signers[m].toString());
	    }
	    java.security.CodeSource codeSource = registrar.
		getClass().getProtectionDomain().
		getCodeSource();
	    System.out.println("CodeSource " + codeSource.toString());
	    */
	    // the code takes separate routes from here for client or service
	    System.out.println("found a service locator");
  	}
    }

    public void discarded(DiscoveryEvent evt) {

    }
} // MulticastRegister