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From xunlong gui <>
Subject Re: [SCXML]Eclipse plunge-in based visual editor,debugger and code generation tool for SCXML
Date Thu, 01 Apr 2010 02:20:19 GMT
Hi Rahul,
Thank you for your advise, i will prepare my proposal, and submit it in
Commons JIRA and Commons Wiki to discuss with more Commons SCXML developers.
Meanwhile, i will submit my proposal in the GSoC web site, may be i can get
some good advises there too :-)

2010/4/1 Rahul Akolkar <>

> On Wed, Mar 31, 2010 at 2:42 AM, xunlong gui <> wrote:
>  > Hi all,
> >
> > I have been using Apache Commons SCXML Engine for more than two years,Now
> i
> > have an idea to improve it, and I wanted to post it and see if there
> would
> > be any interest in it in the Apache SCXML community. If possible, i want
> to
> > hold it as a GSoC(url: open source project.
> > The basic idea of the project is to create a Eclipse based visual editor
> and
> > debugger for SCXML which can also generate SCXML statechart to Java code.
> >
> > State Chart XML (SCXML) is currently a Working Draft published by the
> World
> > Wide Web Consortium (W3C). SCXML provides a generic state-machine based
> > execution environment based on Harel State Tables. SCXML is a candidate
> for
> > the control language within multiple markup languages coming out of the
> > W3C.It is very useful to handler complex status transfer logic,but if a
> > SCXML file is really so huge and complex,it will become too difficult to
> > maintain and refactor or to test its logic validity.
> >
> > This project is to develop a Eclipse plunge-in visual editor which is
> > capable of showing a graphical representation of the process model and
> > allows for adding breakpoints to activities, variable modifications and
> > managing the debugging process for SCXML.I have already done some work on
> > both SCXML and Eclipse GMF,even i tried to implement a SCXML editor using
> > GMF and got a little achievement,so i want to develop this editor with
> > and have enough confidence to finish it.
> > Usually,State Chart XML file will be running on a SCXML engine(for
> example,
> > our Apache Commons SCXML),if some one only want to achieve the SCXML
> file's
> > business logic,but do not want to or can not use some SCXML engine due to
> > licence problem etc,this tool can export SCXML file's logic to
> executeable
> > Java code which has the same state logic translation with the SCXML file.
> >
> > This is my mainly idea,if anyone has any questions or comments, or would
> be
> > interested in mentoring this project, please let me know. Thanks.
> >
> <snip/>
> An open-source Eclipse-based plugin that uses visual state chart
> editors and generates SCXML documents is much needed -- in fact, the
> archives of the user mailing list will show many queries asking for it
> over the years. Further, I think this is also a good topic for a GSoC
> endeavor.
> Having said that, I think its best if we can find someone other than
> me who is willing to mentor this. As you are probably aware, we have
> another GSoC proposal related to SCXML (the one from Jake Beard) that
> I will be mentoring if it is accepted. So, lets see if anyone else is
> interested in mentoring this.
> In the meantime, since the GSoC application deadline is a little over
> a week away, here is how you can continue to make progress:
>  * You may begin using the Apache Commons resources available for
> preparing your GSoC proposal. For Commons SCXML, here is the JIRA
> project [1] and here is the wiki space [2] (there is a short
> registration for creating accounts for either of those if you don't
> already have JIRA and wiki accounts). If you want, you can begin
> detailing the proposal on the wiki, drawing out a timeline of
> deliverables etc. as suggested in the GSoC guidelines.
>  * You may ofcourse pursue your proposal with other organizations as
> well (such as The Eclipse Foundation) to find suitable mentors (as a
> reminder, in the end, at most one proposal per student can be
> accepted).
> Note that in terms of participating in a GSoC project at Apache, if
> your proposal is accepted:
>  * You would be donating code developed as part of the GSoC project
> (again, if it is accepted) to the Apache Software Foundation (ASF).
> This will certainly involve filing an Individual Contributor License
> Agreement (ICLA) with the ASF -- see that form [3] for details. Please
> confirm that you are willing to do so. If you have any questions about
> the ICLA, please ask us.
>  * If your proposal is accepted with a mentor from Apache Commons, we
> will do most of the work on this public mailing list. However, if at
> any point (including now), there is anything you don't want to post on
> a public list (or are unsure), then you may email
> (and someone will respond there).
> Lastly, if you haven't already seen this, the ASF GSoC site has more
> useful information:
> -Rahul
> [1]
> [2]
> [3]
> > Gui
> >

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