Something's fishy here. Such a model should work fine in PN. Note that hasToken() _alaways_ returns true in PN. The get() method blocks when there is no input.
Looks like something is terminating the threads using a TerminateProcessException. How is your model supposed to be stopped? Edward On 6/21/11 1:18 AM, Vincenzo Forchi wrote:
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
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