[kepler-users] getting error when running workflow with java code

[Ufuk Utku Turuncoglu]

Hi,

I try to run workflow from java code without GUI 
(MoMLSimpleApplication). The workflow contains a myproxy actor and 
display actor connect to it. When i run the workflow using method that 
is defined in MoML simple application, it gives following error,

352 ms. Memory: 31616K Free: 9008K (28%)
ptolemy.kernel.util.IllegalActionException: Cannot find effigy for top 
level: .01-teragrid-myproxy
  in .01-teragrid-myproxy.Display
    at ptolemy.actor.lib.gui.Display._openWindow(Display.java:445)
    at ptolemy.actor.lib.gui.Display.postfire(Display.java:353)
    at ptolemy.actor.AtomicActor.iterate(AtomicActor.java:440)

The workflow runs without problem and get proxy credential from server 
and it gives this error when the Display actor is fired. I expect that 
the filter,

MoMLParser.addMoMLFilter(new RemoveGraphicalClasses());

must remove any actor that generates visual output but in this case it 
is not working. I am just using following method to execute MoML,

    private void execMoML(String moml) throws Exception {
        // create MoML parser
        MoMLParser parser = new MoMLParser();
        
        // set MoML filter for backward compatibility
        MoMLParser.setMoMLFilters(BackwardCompatibility.allFilters());
        
        // Filter out any graphical classes.
        MoMLParser.addMoMLFilter(new RemoveGraphicalClasses());
       
        // create a composite actor that contains MoML
        CompositeActor toplevel = (CompositeActor) parser.parse(moml);
       
        // create a manager for composite actor and execute it
        Manager manager = new Manager(toplevel.workspace(), 
"MoMLSimpleApplication");
        toplevel.setManager(manager);
        //toplevel.addChangeListener(this);
        //manager.addExecutionListener(this);
        manager.execute();
    }

As you can see, i comment out registration of listener.  Is this cause 
the problem? What is the purpose of these listeners.

Thanks,

--ufuk