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Jini Forum
Finding JavaSpace

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BN

Posts: 2
Nickname: druuna
Registered: Apr, 2002

Finding JavaSpace

Posted: Apr 7, 2002 10:46 AM

Hi!

After I (finally!) got all required Jini services running (RMID, WebServer, Reggie, Mahalo_TxnManager and TransientSpace), I tried running a simple program just to see if everything's working properly. I wanted to perform a lookup on a LUS's registrar and find JavaSpace, or any other service, so I used ServiceTemplate(null,null,null). But, the only thing it finds is reggie's proxy. It reports that there are no other services running.
How come it doesn't find transaction manager, or JavaSpace, although they seem to have performed join successfully?
I hope someone helps! Thanx!

Here's a program listing:

import net.jini.core.lookup.*;
import net.jini.core.discovery.*;
import com.sun.jini.lookup.*;
import net.jini.space.*;

class first
{
public static void main (String[] args)
{

LookupLocator lookup;
ServiceRegistrar registrar;
ServiceTemplate template;

try
{

lookup = new LookupLocator ("jini://localhost");
registrar = lookup.getRegistrar();
template = new ServiceTemplate (null, null, null);
ServiceMatches services = registrar.lookup (template,10);

System.out.println ("Number of matches found: " + services.items.length);
for (int i=0;i<services.items.length;i++)
System.out.println ("Service "+i+" : " + services.items.service);

}
catch (Exception e)
{
System.out.println ("client: first.main() exception: " + e);
}

}
}

The output I get is :

Number of matches found: 1
Service 0 : com.sun.jini.reggie.RegistrarProxy@624457bc

If I use real IP number and port instead of localhost in creating LookupLocator I get this error message:

bad request " ☺" from jazz:1368
java.net.SocketException: Connection aborted by peer: socket write error
at java.net.SocketOutputStream.socketWrite(Native Method)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.DataOutputStream.writeBytes(Unknown Source)
at com.sun.jini.tool.ClassServer$Task.run(ClassServer.java:243)

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