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Date: Mon, 2 Feb 2009 18:50:15 +0100
Message-ID: <d6a8d5100902020950k618604cdk11a137d5ec7780fa@mail.gmail.com>
Subject: Re: [SCXML ]Re: Need some guidance in making a SIP application using
	commons-SCXML
From: jocke eriksson <jocke29@gmail.com>
To: Commons Users List <user@commons.apache.org>
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Well I have one implementation based on Sailfin and Commons SCXML and it
works great. If you could be a bit more specific about what you want to do
then pleas let me know and I will help. Our implementation is close to
CCXML.

Regards Jocke.

2009/2/2 Saurabh Agarwal <sagarwal1981@gmail.com>

> Thanks Rahul,
>
> Sorry for posting on dev list but I would request you to please end my
> discussion on this list from any subsequent post I will use user list ,I
> just dont want to loose context , Hope you will understand.
>
>
>
> I have one more simple question is anybody aware of any SCXML editors ( if
> possible free or open source ) , Rahut are you aware wich software is used
> in the slides you mailed me .
>
> Thanks & Regards
> Saurabhj
>
> On Mon, Feb 2, 2009 at 10:05 PM, Rahul Akolkar <rahul.akolkar@gmail.com
> >wrote:
>
> > I've responded below, but if there are subsequent posts, please
> > continue this discussion on the user list, which suits this topic
> > better. If you change the email subject, please prefix with [SCXML].
> >
> > With respect to SIP and SCXML, I'm aware there have been integration
> > efforts, though there isn't any code I can point you to. As a brief
> > conceptual example, see slides 20 and 21 from this WWW07 presentation:
> >
> >  http://www.w3.org/2007/Talks/www2007-SCXML.pdf
> >
> > More inline ...
> >
> > On Mon, Feb 2, 2009 at 10:42 AM, Saurabh Agarwal <sagarwal1981@gmail.com
> >
> > wrote:
> > > Thanks Siegfried ,
> > > Yes I am aware that in Sip Servlet spec  SIP messgages are treated as
> > Java
> > > Classes etc .
> > >
> > > What I intended to ask that how can I use Commons-SCXML with SIP ,
> > Actually
> > > this is waht i want to do .
> > >
> > > 1. I want to make a SIP application server that will recieve some SIP
> > > messages ( INVITE , REFER etc ) and do some processing etc on it like
> > check
> > > some headers , fork SIP messages etc .
> > >
> > > I want to do this with the help of Sailfin and SIP Servelts .
> > >
> > > 2. Now what I want now is also use SCXML as my state machine may change
> > very
> > > dynamically as per client requirments so I want to use SCXML so that we
> > dont
> > > have to go on changing code frequenly and can concentrate on buisness
> > logic.
> > >
> > <snip/>
> >
> > Sounds similar to the example I point out above.
> >
> >
> > > Can anybody help me the following:
> > >
> > > 1. How can I integrate SIP servlet ( running inside sailfin )  with
> > > commons-scxml.
> > <snap/>
> >
> > There isn't anything special about sailfin in the client environment
> > for Commons SCXML sense.
> >
> >
> > > 2. How can I pass the SIP message to the state machine defined in SCXML
> > and
> > > is it possible to easily modify headers in it .
> > >
> > <snip/>
> >
> > The basic idea in most use cases is to convert incoming requests or
> > messages (here, SIP related) to events that get fired on the state
> > machine. The state machine context needs to be populated with all the
> > information needed for the state machine to make the necessary
> > transitions and thereby, execute the necessary actions (the context
> > can be programmatically populated, or payloads can be attached to
> > events as might make sense for a particular usecase). Client specific
> > interactions (clients of Commons SCXML) are carried out with custom
> > actions or using the external communications module.
> >
> > I'd say give the SCXML spec a quick read if you haven't already. Then
> > check out the Commons SCXML user guide [1], particularly the items on
> > contexts [2], event payloads [3] and custom actions [4].
> >
> > -Rahul
> >
> > [1] http://commons.apache.org/scxml/guide.html
> > [2] http://commons.apache.org/scxml/guide/contexts-evaluators.html
> > [3] http://commons.apache.org/scxml/guide/core-events.html
> > [4] http://commons.apache.org/scxml/guide/custom-actions.html
> >
> >
> > >
> > > Any help is highly appreciated .
> > >
> > > Thanks
> > > Saurabh
> > >
> > > On Mon, Feb 2, 2009 at 7:09 PM, Siegfried Goeschl <
> > > siegfried.goeschl@it20one.at> wrote:
> > >
> > >> Hi,
> > >>
> > >> I don't know  SCXML but worked with SIP
> > >>
> > >> +) a SIP message is not a ASCII message but a Java data structure very
> > >> similiar to ServletRequest and ServletResponce (afaik
> SipServletRequest
> > >> and SipServletResponse)
> > >> +) depending on your requirements you have to parse the SDP's
> > >>
> > >> Cheers
> > >>
> > >> Siegfried Goeschl
> > >>
> > >>
> > >> Saurabh Agarwal wrote:
> > >> > Hi All,
> > >> >
> > >> > I am new to commons-SCXML and I am trying to make SIP application
> > using
> > >> > sailfin ( Leveraging SIP Servlets ).
> > >> >
> > >> > I came across SCXML and thought it can be of great use , As far as I
> > had
> > >> > understood I can write the state machines iusing scxml and dont have
> > >> > to write much java code except some helper functions.
> > >> >
> > >> > I have couple of questions which I am not able to understand yet :
> > >> >
> > >> > 1. How to integrate SIP Servlet and Commons-scxml ( I tried to
> > understand
> > >> > shale but unable to do so ).
> > >> > 2. Can Commons-scxml parse and do some logic on a SIP message (
> Ascii
> > >> messge
> > >> > ) and give me results.
> > >> >
> > >> > Any pointers are highly appreciated.
> > >> >
> > >> > Please help
> > >> >
> > >> > Thanks
> > >> > Saurabh Agarwal
> > >> >
> > >> >
> > >
> > >
> > > --
> > >
> > > "Successful people make more mistakes because they do more "
> > > Thanks
> > > Saurabh Agarwal
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@commons.apache.org
> > For additional commands, e-mail: dev-help@commons.apache.org
> >
> >
>
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>

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