[kepler-users] Problem with PN director

[Vincenzo Forchi]

Hi All,

I have a problem with the PN director on kepler 2.2. I have a simple workflow: string constant -> 
file reader -> custom actor.
The string constant fires only once, but my acotr is triggered twice, and the second times it fails 
because there is no token on the input port. I defined the token consumption rate for the input 
port, I have overridden prefire to return true only if a token is present on the input port, but the 
actor is still fired twice.

This is a snippet from my fire method:

System.out.println(myPort.hasToken(0));
String xml = ((StringToken) myPort.get(0)).stringValue();

This is the command line output, I caught the exception and printed the stack trace

       [run] true
       [run] ERROR (org.kepler.gui.MenuMapper:getActionFor:269) Exception trying to create an Action 
for classname: <org.kepler.gui.RunWithFeedbackChkBoxAction>:
       [run] java.lang.IllegalArgumentException: RunWithFeedbackChkBoxAction constructor could not 
get actions for DEBUG->ANIMATE EXECUTION or DEBUG->STOP ANIMATING 
(java.lang.reflect.InvocationTargetException)
       [run] ERROR (org.kepler.gui.MenuMapper:getActionFor:269) Exception trying to create an Action 
for classname: <org.kepler.gui.RunWithFeedbackChkBoxAction>:
       [run] java.lang.IllegalArgumentException: RunWithFeedbackChkBoxAction constructor could not 
get actions for DEBUG->ANIMATE EXECUTION or DEBUG->STOP ANIMATING 
(java.lang.reflect.InvocationTargetException)
       [run] ptolemy.actor.process.TerminateProcessException:
       [run]     at ptolemy.domains.pn.kernel.PNQueueReceiver.get(PNQueueReceiver.java:198)
       [run]     at ptolemy.actor.IOPort.get(IOPort.java:885)
       [run]     at MyClass.fire(MyClass.java:119)
       [run]     at ptolemy.actor.process.ProcessThread.run(ProcessThread.java:229)

The very same code works flawlessly with the DDF director: any ideas?

Thanks and cheers,
Vincenzo

-- 
Vincenzo Forchi    European Southern Observatory
Karl-Schwarzschild-Strasse 2,  D-85748 Garching bei Muenchen,  Germany.
Email: vforchi at eso.org    Tel: +49 89 32006136    Fax: +49 89 3202362