Comments (2)
sjdayday
commented on August 17, 2024
Hi Florian,
The general approach to integrating with external systems is outlined here:
https://github.com/sjdayday/PIPECore/wiki
This paper shows how it was done for a working project:
https://arxiv.org/abs/1607.06875
In general, the decision about which of multiple enabled transitions to
fire next, is random. If you want to exercise more control, add an
external input place to your petri net, and mark it (or not) from your
program through the Runner interface. Another approach is to create an
external transition, which receives control with a context and access to
the entire petri net when the transition is about to fire. The context is
an arbitrary Java object, which your program and the external transition
code can each access and update.
If you explain a bit more about your use case, I can suggest how you might
approach the integration. Or we could Skype at some point.
best,
Steve
[email protected]
…On Sun, Oct 14, 2018 at 9:40 AM Florian Kleedorfer ***@***.***> wrote:
For my use case, I'd like to add data to the petrinets so as to make
integration with a client application easier. Ideally, it would be possible
to make annotations in the GUI and use them programatically after loading
the petri net using the java api. Thus the client application can query the
petri net about enabled transitions and marked places and use the
annotations on those items to interpret them and decide which transitions
to fire.
Is there any way to embed data that can be accessed via the java api? So
far, the only solution I see is to use the id field (the 'name' is not
shown/accessible in the GUI), which is ok as long as there are no
duplicates in the data I want to annotate, and as long as a simple ID is
all I need (but I am thinking about a solution that would require more data
to be embedded).
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Steve Doubleday
PhD candidate, Mathematical Behavioral Sciences
UC Irvine
[email protected]
818-648-8381
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fkleedorfer
commented on August 17, 2024
Hi Steve,
In general, the decision about which of multiple enabled transitions to fire next, is random.
In our case, control is reversed: the client decides which transition fires, the net provides the information which transitions are available and which places are marked.
My question was more about embedding third-party data in the net. The solution to use the id field isn't bad at all. Using the id, we assign URIs to all the places/transitions that we are interested in for firing or querying. Everything else is handled on the client side.
The only downside for me with this solution is that we have to use the URIs in the GUI, too, which just looks cumbersome. It would be better for readability if we could give places and transitions human readable names in addition to id field. The xml structure suggests that that's possible, but name and id are always the same (at least in uk.ac.imperial:pipe-core:1.0.3).
from pipecore.
Related Issues (12)
- PetriNetIOImpl does not load arcs correctly
- Interfaces! HOT 1
- Infinite Server semantics not supported in Animation HOT 1
- ClonePetriNet does not clone petri net name
- Petrinet layout
- Get random enabled conflict - is missing one transition when selecting out of possible HOT 3
- Index out of bounds trying to open an existing Petri net
- InvalidRateException opening a Petri net with rate parameter referencing a place
- Transition incorrectly enabled when inbound place is empty and arc weight expression evaluates to zero
- I can't run the source code through the 'maven build' in the eclipse? HOT 11
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