Hi Guillaume, What director are you using? You might need to do a check to see if there is any data on the port before actually reading from it. This depends on the director you are using. I believe you need to do this for PN and maybe others.
chad tog wrote: > Hi > > I have designed my own actor which encapsulate some grid execution > service. It's behavior is similar to the webservice actor (ports are > created once a provider is chosen). > I used to chain several instances of my actor without any problem. > > I now have a problem when I decided to use a > DataInput/WorkflowInput/Parameter/PortParameter to feed my actor > (previously one of my actor was creating some data which was > propagated) > > The PortParameter is set using a FileParameter. > > When I run my workflow, it fires my first actor which try to get a > token on its input (as usual) but it seems that there is no token > since I get the following message: > ptolemy.actor.NoTokenException: Attempt to get token > from an empty QueueReceiver > > What is the correct way to read from a PortParamter ? > > Thanks > Guillaume > _______________________________________________ > Kepler-users mailing list > Kepler-users at ecoinformatics.org > http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-users
