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Posted to user@commons.apache.org by Saurabh Agarwal <sa...@gmail.com> on 2009/02/02 17:56:08 UTC
[SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
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 <ra...@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 <sa...@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
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Saurabh Agarwal <sa...@gmail.com>.
Thanks Jocke for clearing that up .
Actually here is my reason for trying also to manipulate the headers :
1. First of all since in State machine I am jumping from one state to
another based on some logic and in next state I need some modified header ,
so to speed up and not call Java code in another memory space I want to do
the processing of headers also via state machine , Any help how can I do it
will be of great help .
2. Since after some time I need to use commons-sipxml with C++ code that why
I also want to do header parsing subsitution in state machine otherwise it
will be a heavy overhead of JNI calls.
Thanks & Regards
Saurabh
On Tue, Feb 3, 2009 at 9:37 PM, jocke eriksson <jo...@gmail.com> wrote:
> I' m sorry for taken some time but had some issues that i had to clear up
> first.
> Well I don't think you should use Commons-scxml to manipulate headers.
> SCXML
> should be used to control
> logic and flow. You should not pass the sipmessages to the statemachine you
> should fire events on it
> and let it decide what to do next. Like this
>
> <scxml:transition event="connection.alerting" >
> <cc:accept />
> </scxml:transition>
> <scxml:transition event="connection.connected">
> <scxml:assign name="callerID" expr="_eventdata.connectionid" />
> </scxml:transition>
>
> The first event is fired upon the machine when the first invite comes in.
> This will cause the custom action accept to get called.
>
> ------INVITE-------> fire event connection.alerting
> <accept />
> <---OK-------------
> --------ACK---------> fire event connection.connected
> <createcall />
> -------INVITE----> and so on.
>
> Hope this helps.
>
> Regards jocke.
>
> 2009/2/3 Saurabh Agarwal <sa...@gmail.com>
>
> > Thanks all for all the help and guidance .
> >
> > This is what I have understood and achieved ( a pretty big word just a
> > hello
> > world :) ) and need you help in the following:
> >
> >
> > 1. I made a SIP servlet and in doInvite method I am Calling StopClock ( I
> > am
> > using the default example ) and starting its state machine using
> > stopClock.fireEvent .
> >
> > So I was able to start and stop the state machine based on some SIP
> mesages
> > ( So integration of SIP and commons-scxml is done to an extent ) .
> >
> >
> > Now I want to do the following and need your help in moving forward ( I
> > know
> > I can read and expirnent more about it but actually I have pretty strict
> > deadline for the prototyping so need some urgent inputs , Thanks for the
> > patience and help ).
> >
> > 1. I want to pass the SIP message to the state machine:
> > As far as I can understand I have to use Context to pass the SIP
> message
> > to the State machine , Am I correct on that or I have some better option
> .
> >
> > 2. I want to do a good amount of SIP Mesage change like removing some
> > headers , adding some etc , How can I do that .
> > As far as I understand I can use JEXL etc for it , what will be my
> best
> > option .
> > How can I access the SIP message in the SCXML .
> >
> > Any code pointers will help a lot .
> >
> >
> >
> > Thanks a lot
> >
> > Thanks & Regards
> > Saurabh
> > On Tue, Feb 3, 2009 at 1:33 PM, Saurabh Agarwal <sagarwal1981@gmail.com
> > >wrote:
> >
> > > Thanks Jocke for taking the pain :)
> > >
> > > Actually I am not clear how my java code will be called when the state
> > > machine executes , Can you please show some code snippet for that .
> > >
> > > I use netbeans for development .
> > >
> > > Thanks & Regards
> > > Saurabh
> > >
> > >
> > > On Tue, Feb 3, 2009 at 1:23 PM, jocke eriksson <jo...@gmail.com>
> > wrote:
> > >
> > >> Well the task that you describing is a bit big to handle over the
> E-mail
> > >> list. But I will try to make a sample application that you could look
> > at,
> > >> but it will take some time though. But the basic idé is that you
> create
> > a
> > >> statemachine with your custom events when you get an INVITE then you
> > start
> > >> fire events that ocurre as your script progress. Pleas look at the
> CCXML
> > >> spec to get a grip of the custom actions that this script use.
> > >>
> > >> This script contains the custom actions accept createcall and join,
> And
> > >> could be a good start for your project. Pleas stay tuned .
> > >>
> > >> <?xml version="1.0" encoding="UTF-8"?>
> > >>
> > >> <scxml:scxml xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
> > >> xmlns:scxml='http://www.w3.org/2005/07/scxml'
> > >> xmlns:cc='http://www.w3.org/2002/09/ccxml'
> > >> xsi:schemaLocation='http://www.w3.org/2005/07/scxml scxml.xsd
> > >> http://www.w3.org/2002/09/ccxml ccxml.xsd' initialstate="start">
> > >>
> > >> <scxml:datamodel>
> > >> <scxml:data name="callerId"/>
> > >> </scxml:datamodel>
> > >>
> > >> <scxml:state id="start" >
> > >> <scxml:onentry>
> > >> <scxml:log label="joinTest" expr="'Entering state: start'"
> />
> > >> </scxml:onentry>
> > >>
> > >> <scxml:transition event="ccxml.loaded">
> > >> <scxml:log label="joinTest" expr="'The doc was loaded'" />
> > >> </scxml:transition>
> > >>
> > >> <scxml:transition event="connection.alerting" >
> > >> <scxml:log label="joinTest" expr="'call is alerting'" />
> > >> <scxml:assign name="callerId"
> expr="_eventdata.connectionid"
> > />
> > >> <cc:accept />
> > >> </scxml:transition>
> > >>
> > >> <scxml:transition event="connection.connected">
> > >> <scxml:log label="joinTest" expr="'connection is
> connected'"
> > />
> > >> <cc:createcall connectionid="'calleeId'"
> > >> callerid="sip:ccxml@localhost" dest="sip:sipp@localhost" />
> > >> </scxml:transition>
> > >>
> > >> <scxml:transition event="connection.progressing" target="join">
> > >> <scxml:log label="joinTest" expr="'connection is
> > progressing'"
> > >> />
> > >> <scxml:log label="joinTest" expr="'CalleeId: ' + calleeId"
> />
> > >> <scxml:log label="joinTest" expr="'CallerId: ' + callerId"
> />
> > >> </scxml:transition>
> > >> </scxml:state>
> > >>
> > >> <scxml:state id="join">
> > >> <scxml:onentry>
> > >> <scxml:log label="joinTest" expr="'Entering state: join'"
> />
> > >> </scxml:onentry>
> > >>
> > >> <scxml:transition event="connection.connected">
> > >> <scxml:log label="joinTest" expr="'connected'" />
> > >> <cc:join id1="callerId" id2="calleeId" />
> > >> </scxml:transition>
> > >>
> > >> <scxml:transition event="conference.joined">
> > >> <scxml:log label="joinTest" expr="'Conference joined - test
> > >> succesfull!'" />
> > >> </scxml:transition>
> > >>
> > >> <scxml:transition event="connection.disconnected">
> > >> <scxml:log label="joinTest" expr="'Disconnected'" />
> > >>
> > >> </scxml:transition>
> > >> </scxml:state>
> > >> </scxml:scxml>
> > >>
> > >> PS: are you a maven user or netbeans user?
> > >>
> > >> 2009/2/3 Saurabh Agarwal <sa...@gmail.com>
> > >>
> > >> > Thanks Jocke,
> > >> >
> > >> > As of now I want to make a simple application that will recieve
> INVITE
> > >> do
> > >> > some pattern matching like see for text named search in uri and
> search
> > >> the
> > >> > user in database and send INVITE to it ,if there are multiple users
> > then
> > >> > fork INVITES.
> > >> >
> > >> > Since I am new to commons-xml can you please help me in
> understanding
> > >> when
> > >> > an INVITE comes on sailfin, "doInvite" of my servlet gets called .
> > >> >
> > >> > Can you please tell me how to integrate commons-scxml from there so
> > that
> > >> > the
> > >> > SIP request goes to the SCXML state machine and using that I can put
> > >> some
> > >> > pattern matching in the state machine and do some processing like
> > >> forking
> > >> > INVITES etc .
> > >> >
> > >> > Any code snippet will be really helpful.
> > >> >
> > >> > Thanks a lot .
> > >> >
> > >> > Saurabh
> > >> >
> > >> >
> > >> >
> > >> > On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com>
> > >> wrote:
> > >> >
> > >> > > 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 <sa...@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
> > >> > > >
> > >> > >
> > >> >
> > >> >
> > >> >
> > >> > --
> > >> >
> > >> > "Successful people make more mistakes because they do more "
> > >> > Thanks
> > >> > Saurabh Agarwal
> > >> >
> > >>
> > >
> > >
> > >
> > > --
> > >
> > > "Successful people make more mistakes because they do more "
> > > Thanks
> > > Saurabh Agarwal
> > >
> >
> >
> >
> > --
> >
> > "Successful people make more mistakes because they do more "
> > Thanks
> > Saurabh Agarwal
> >
>
--
"Successful people make more mistakes because they do more "
Thanks
Saurabh Agarwal
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by jocke eriksson <jo...@gmail.com>.
I' m sorry for taken some time but had some issues that i had to clear up
first.
Well I don't think you should use Commons-scxml to manipulate headers. SCXML
should be used to control
logic and flow. You should not pass the sipmessages to the statemachine you
should fire events on it
and let it decide what to do next. Like this
<scxml:transition event="connection.alerting" >
<cc:accept />
</scxml:transition>
<scxml:transition event="connection.connected">
<scxml:assign name="callerID" expr="_eventdata.connectionid" />
</scxml:transition>
The first event is fired upon the machine when the first invite comes in.
This will cause the custom action accept to get called.
------INVITE-------> fire event connection.alerting
<accept />
<---OK-------------
--------ACK---------> fire event connection.connected
<createcall />
-------INVITE----> and so on.
Hope this helps.
Regards jocke.
2009/2/3 Saurabh Agarwal <sa...@gmail.com>
> Thanks all for all the help and guidance .
>
> This is what I have understood and achieved ( a pretty big word just a
> hello
> world :) ) and need you help in the following:
>
>
> 1. I made a SIP servlet and in doInvite method I am Calling StopClock ( I
> am
> using the default example ) and starting its state machine using
> stopClock.fireEvent .
>
> So I was able to start and stop the state machine based on some SIP mesages
> ( So integration of SIP and commons-scxml is done to an extent ) .
>
>
> Now I want to do the following and need your help in moving forward ( I
> know
> I can read and expirnent more about it but actually I have pretty strict
> deadline for the prototyping so need some urgent inputs , Thanks for the
> patience and help ).
>
> 1. I want to pass the SIP message to the state machine:
> As far as I can understand I have to use Context to pass the SIP message
> to the State machine , Am I correct on that or I have some better option .
>
> 2. I want to do a good amount of SIP Mesage change like removing some
> headers , adding some etc , How can I do that .
> As far as I understand I can use JEXL etc for it , what will be my best
> option .
> How can I access the SIP message in the SCXML .
>
> Any code pointers will help a lot .
>
>
>
> Thanks a lot
>
> Thanks & Regards
> Saurabh
> On Tue, Feb 3, 2009 at 1:33 PM, Saurabh Agarwal <sagarwal1981@gmail.com
> >wrote:
>
> > Thanks Jocke for taking the pain :)
> >
> > Actually I am not clear how my java code will be called when the state
> > machine executes , Can you please show some code snippet for that .
> >
> > I use netbeans for development .
> >
> > Thanks & Regards
> > Saurabh
> >
> >
> > On Tue, Feb 3, 2009 at 1:23 PM, jocke eriksson <jo...@gmail.com>
> wrote:
> >
> >> Well the task that you describing is a bit big to handle over the E-mail
> >> list. But I will try to make a sample application that you could look
> at,
> >> but it will take some time though. But the basic idé is that you create
> a
> >> statemachine with your custom events when you get an INVITE then you
> start
> >> fire events that ocurre as your script progress. Pleas look at the CCXML
> >> spec to get a grip of the custom actions that this script use.
> >>
> >> This script contains the custom actions accept createcall and join, And
> >> could be a good start for your project. Pleas stay tuned .
> >>
> >> <?xml version="1.0" encoding="UTF-8"?>
> >>
> >> <scxml:scxml xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
> >> xmlns:scxml='http://www.w3.org/2005/07/scxml'
> >> xmlns:cc='http://www.w3.org/2002/09/ccxml'
> >> xsi:schemaLocation='http://www.w3.org/2005/07/scxml scxml.xsd
> >> http://www.w3.org/2002/09/ccxml ccxml.xsd' initialstate="start">
> >>
> >> <scxml:datamodel>
> >> <scxml:data name="callerId"/>
> >> </scxml:datamodel>
> >>
> >> <scxml:state id="start" >
> >> <scxml:onentry>
> >> <scxml:log label="joinTest" expr="'Entering state: start'" />
> >> </scxml:onentry>
> >>
> >> <scxml:transition event="ccxml.loaded">
> >> <scxml:log label="joinTest" expr="'The doc was loaded'" />
> >> </scxml:transition>
> >>
> >> <scxml:transition event="connection.alerting" >
> >> <scxml:log label="joinTest" expr="'call is alerting'" />
> >> <scxml:assign name="callerId" expr="_eventdata.connectionid"
> />
> >> <cc:accept />
> >> </scxml:transition>
> >>
> >> <scxml:transition event="connection.connected">
> >> <scxml:log label="joinTest" expr="'connection is connected'"
> />
> >> <cc:createcall connectionid="'calleeId'"
> >> callerid="sip:ccxml@localhost" dest="sip:sipp@localhost" />
> >> </scxml:transition>
> >>
> >> <scxml:transition event="connection.progressing" target="join">
> >> <scxml:log label="joinTest" expr="'connection is
> progressing'"
> >> />
> >> <scxml:log label="joinTest" expr="'CalleeId: ' + calleeId" />
> >> <scxml:log label="joinTest" expr="'CallerId: ' + callerId" />
> >> </scxml:transition>
> >> </scxml:state>
> >>
> >> <scxml:state id="join">
> >> <scxml:onentry>
> >> <scxml:log label="joinTest" expr="'Entering state: join'" />
> >> </scxml:onentry>
> >>
> >> <scxml:transition event="connection.connected">
> >> <scxml:log label="joinTest" expr="'connected'" />
> >> <cc:join id1="callerId" id2="calleeId" />
> >> </scxml:transition>
> >>
> >> <scxml:transition event="conference.joined">
> >> <scxml:log label="joinTest" expr="'Conference joined - test
> >> succesfull!'" />
> >> </scxml:transition>
> >>
> >> <scxml:transition event="connection.disconnected">
> >> <scxml:log label="joinTest" expr="'Disconnected'" />
> >>
> >> </scxml:transition>
> >> </scxml:state>
> >> </scxml:scxml>
> >>
> >> PS: are you a maven user or netbeans user?
> >>
> >> 2009/2/3 Saurabh Agarwal <sa...@gmail.com>
> >>
> >> > Thanks Jocke,
> >> >
> >> > As of now I want to make a simple application that will recieve INVITE
> >> do
> >> > some pattern matching like see for text named search in uri and search
> >> the
> >> > user in database and send INVITE to it ,if there are multiple users
> then
> >> > fork INVITES.
> >> >
> >> > Since I am new to commons-xml can you please help me in understanding
> >> when
> >> > an INVITE comes on sailfin, "doInvite" of my servlet gets called .
> >> >
> >> > Can you please tell me how to integrate commons-scxml from there so
> that
> >> > the
> >> > SIP request goes to the SCXML state machine and using that I can put
> >> some
> >> > pattern matching in the state machine and do some processing like
> >> forking
> >> > INVITES etc .
> >> >
> >> > Any code snippet will be really helpful.
> >> >
> >> > Thanks a lot .
> >> >
> >> > Saurabh
> >> >
> >> >
> >> >
> >> > On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com>
> >> wrote:
> >> >
> >> > > 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 <sa...@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
> >> > > >
> >> > >
> >> >
> >> >
> >> >
> >> > --
> >> >
> >> > "Successful people make more mistakes because they do more "
> >> > Thanks
> >> > Saurabh Agarwal
> >> >
> >>
> >
> >
> >
> > --
> >
> > "Successful people make more mistakes because they do more "
> > Thanks
> > Saurabh Agarwal
> >
>
>
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Saurabh Agarwal <sa...@gmail.com>.
Thanks all for all the help and guidance .
This is what I have understood and achieved ( a pretty big word just a hello
world :) ) and need you help in the following:
1. I made a SIP servlet and in doInvite method I am Calling StopClock ( I am
using the default example ) and starting its state machine using
stopClock.fireEvent .
So I was able to start and stop the state machine based on some SIP mesages
( So integration of SIP and commons-scxml is done to an extent ) .
Now I want to do the following and need your help in moving forward ( I know
I can read and expirnent more about it but actually I have pretty strict
deadline for the prototyping so need some urgent inputs , Thanks for the
patience and help ).
1. I want to pass the SIP message to the state machine:
As far as I can understand I have to use Context to pass the SIP message
to the State machine , Am I correct on that or I have some better option .
2. I want to do a good amount of SIP Mesage change like removing some
headers , adding some etc , How can I do that .
As far as I understand I can use JEXL etc for it , what will be my best
option .
How can I access the SIP message in the SCXML .
Any code pointers will help a lot .
Thanks a lot
Thanks & Regards
Saurabh
On Tue, Feb 3, 2009 at 1:33 PM, Saurabh Agarwal <sa...@gmail.com>wrote:
> Thanks Jocke for taking the pain :)
>
> Actually I am not clear how my java code will be called when the state
> machine executes , Can you please show some code snippet for that .
>
> I use netbeans for development .
>
> Thanks & Regards
> Saurabh
>
>
> On Tue, Feb 3, 2009 at 1:23 PM, jocke eriksson <jo...@gmail.com> wrote:
>
>> Well the task that you describing is a bit big to handle over the E-mail
>> list. But I will try to make a sample application that you could look at,
>> but it will take some time though. But the basic idé is that you create a
>> statemachine with your custom events when you get an INVITE then you start
>> fire events that ocurre as your script progress. Pleas look at the CCXML
>> spec to get a grip of the custom actions that this script use.
>>
>> This script contains the custom actions accept createcall and join, And
>> could be a good start for your project. Pleas stay tuned .
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>>
>> <scxml:scxml xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
>> xmlns:scxml='http://www.w3.org/2005/07/scxml'
>> xmlns:cc='http://www.w3.org/2002/09/ccxml'
>> xsi:schemaLocation='http://www.w3.org/2005/07/scxml scxml.xsd
>> http://www.w3.org/2002/09/ccxml ccxml.xsd' initialstate="start">
>>
>> <scxml:datamodel>
>> <scxml:data name="callerId"/>
>> </scxml:datamodel>
>>
>> <scxml:state id="start" >
>> <scxml:onentry>
>> <scxml:log label="joinTest" expr="'Entering state: start'" />
>> </scxml:onentry>
>>
>> <scxml:transition event="ccxml.loaded">
>> <scxml:log label="joinTest" expr="'The doc was loaded'" />
>> </scxml:transition>
>>
>> <scxml:transition event="connection.alerting" >
>> <scxml:log label="joinTest" expr="'call is alerting'" />
>> <scxml:assign name="callerId" expr="_eventdata.connectionid" />
>> <cc:accept />
>> </scxml:transition>
>>
>> <scxml:transition event="connection.connected">
>> <scxml:log label="joinTest" expr="'connection is connected'" />
>> <cc:createcall connectionid="'calleeId'"
>> callerid="sip:ccxml@localhost" dest="sip:sipp@localhost" />
>> </scxml:transition>
>>
>> <scxml:transition event="connection.progressing" target="join">
>> <scxml:log label="joinTest" expr="'connection is progressing'"
>> />
>> <scxml:log label="joinTest" expr="'CalleeId: ' + calleeId" />
>> <scxml:log label="joinTest" expr="'CallerId: ' + callerId" />
>> </scxml:transition>
>> </scxml:state>
>>
>> <scxml:state id="join">
>> <scxml:onentry>
>> <scxml:log label="joinTest" expr="'Entering state: join'" />
>> </scxml:onentry>
>>
>> <scxml:transition event="connection.connected">
>> <scxml:log label="joinTest" expr="'connected'" />
>> <cc:join id1="callerId" id2="calleeId" />
>> </scxml:transition>
>>
>> <scxml:transition event="conference.joined">
>> <scxml:log label="joinTest" expr="'Conference joined - test
>> succesfull!'" />
>> </scxml:transition>
>>
>> <scxml:transition event="connection.disconnected">
>> <scxml:log label="joinTest" expr="'Disconnected'" />
>>
>> </scxml:transition>
>> </scxml:state>
>> </scxml:scxml>
>>
>> PS: are you a maven user or netbeans user?
>>
>> 2009/2/3 Saurabh Agarwal <sa...@gmail.com>
>>
>> > Thanks Jocke,
>> >
>> > As of now I want to make a simple application that will recieve INVITE
>> do
>> > some pattern matching like see for text named search in uri and search
>> the
>> > user in database and send INVITE to it ,if there are multiple users then
>> > fork INVITES.
>> >
>> > Since I am new to commons-xml can you please help me in understanding
>> when
>> > an INVITE comes on sailfin, "doInvite" of my servlet gets called .
>> >
>> > Can you please tell me how to integrate commons-scxml from there so that
>> > the
>> > SIP request goes to the SCXML state machine and using that I can put
>> some
>> > pattern matching in the state machine and do some processing like
>> forking
>> > INVITES etc .
>> >
>> > Any code snippet will be really helpful.
>> >
>> > Thanks a lot .
>> >
>> > Saurabh
>> >
>> >
>> >
>> > On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com>
>> wrote:
>> >
>> > > 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 <sa...@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
>> > > >
>> > >
>> >
>> >
>> >
>> > --
>> >
>> > "Successful people make more mistakes because they do more "
>> > Thanks
>> > Saurabh Agarwal
>> >
>>
>
>
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>
--
"Successful people make more mistakes because they do more "
Thanks
Saurabh Agarwal
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Saurabh Agarwal <sa...@gmail.com>.
Thanks Jocke for taking the pain :)
Actually I am not clear how my java code will be called when the state
machine executes , Can you please show some code snippet for that .
I use netbeans for development .
Thanks & Regards
Saurabh
On Tue, Feb 3, 2009 at 1:23 PM, jocke eriksson <jo...@gmail.com> wrote:
> Well the task that you describing is a bit big to handle over the E-mail
> list. But I will try to make a sample application that you could look at,
> but it will take some time though. But the basic idé is that you create a
> statemachine with your custom events when you get an INVITE then you start
> fire events that ocurre as your script progress. Pleas look at the CCXML
> spec to get a grip of the custom actions that this script use.
>
> This script contains the custom actions accept createcall and join, And
> could be a good start for your project. Pleas stay tuned .
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> <scxml:scxml xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
> xmlns:scxml='http://www.w3.org/2005/07/scxml'
> xmlns:cc='http://www.w3.org/2002/09/ccxml'
> xsi:schemaLocation='http://www.w3.org/2005/07/scxml scxml.xsd
> http://www.w3.org/2002/09/ccxml ccxml.xsd' initialstate="start">
>
> <scxml:datamodel>
> <scxml:data name="callerId"/>
> </scxml:datamodel>
>
> <scxml:state id="start" >
> <scxml:onentry>
> <scxml:log label="joinTest" expr="'Entering state: start'" />
> </scxml:onentry>
>
> <scxml:transition event="ccxml.loaded">
> <scxml:log label="joinTest" expr="'The doc was loaded'" />
> </scxml:transition>
>
> <scxml:transition event="connection.alerting" >
> <scxml:log label="joinTest" expr="'call is alerting'" />
> <scxml:assign name="callerId" expr="_eventdata.connectionid" />
> <cc:accept />
> </scxml:transition>
>
> <scxml:transition event="connection.connected">
> <scxml:log label="joinTest" expr="'connection is connected'" />
> <cc:createcall connectionid="'calleeId'"
> callerid="sip:ccxml@localhost" dest="sip:sipp@localhost" />
> </scxml:transition>
>
> <scxml:transition event="connection.progressing" target="join">
> <scxml:log label="joinTest" expr="'connection is progressing'"
> />
> <scxml:log label="joinTest" expr="'CalleeId: ' + calleeId" />
> <scxml:log label="joinTest" expr="'CallerId: ' + callerId" />
> </scxml:transition>
> </scxml:state>
>
> <scxml:state id="join">
> <scxml:onentry>
> <scxml:log label="joinTest" expr="'Entering state: join'" />
> </scxml:onentry>
>
> <scxml:transition event="connection.connected">
> <scxml:log label="joinTest" expr="'connected'" />
> <cc:join id1="callerId" id2="calleeId" />
> </scxml:transition>
>
> <scxml:transition event="conference.joined">
> <scxml:log label="joinTest" expr="'Conference joined - test
> succesfull!'" />
> </scxml:transition>
>
> <scxml:transition event="connection.disconnected">
> <scxml:log label="joinTest" expr="'Disconnected'" />
>
> </scxml:transition>
> </scxml:state>
> </scxml:scxml>
>
> PS: are you a maven user or netbeans user?
>
> 2009/2/3 Saurabh Agarwal <sa...@gmail.com>
>
> > Thanks Jocke,
> >
> > As of now I want to make a simple application that will recieve INVITE do
> > some pattern matching like see for text named search in uri and search
> the
> > user in database and send INVITE to it ,if there are multiple users then
> > fork INVITES.
> >
> > Since I am new to commons-xml can you please help me in understanding
> when
> > an INVITE comes on sailfin, "doInvite" of my servlet gets called .
> >
> > Can you please tell me how to integrate commons-scxml from there so that
> > the
> > SIP request goes to the SCXML state machine and using that I can put some
> > pattern matching in the state machine and do some processing like forking
> > INVITES etc .
> >
> > Any code snippet will be really helpful.
> >
> > Thanks a lot .
> >
> > Saurabh
> >
> >
> >
> > On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com>
> wrote:
> >
> > > 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 <sa...@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
> > > >
> > >
> >
> >
> >
> > --
> >
> > "Successful people make more mistakes because they do more "
> > Thanks
> > Saurabh Agarwal
> >
>
--
"Successful people make more mistakes because they do more "
Thanks
Saurabh Agarwal
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by jocke eriksson <jo...@gmail.com>.
Well the task that you describing is a bit big to handle over the E-mail
list. But I will try to make a sample application that you could look at,
but it will take some time though. But the basic idé is that you create a
statemachine with your custom events when you get an INVITE then you start
fire events that ocurre as your script progress. Pleas look at the CCXML
spec to get a grip of the custom actions that this script use.
This script contains the custom actions accept createcall and join, And
could be a good start for your project. Pleas stay tuned .
<?xml version="1.0" encoding="UTF-8"?>
<scxml:scxml xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns:scxml='http://www.w3.org/2005/07/scxml'
xmlns:cc='http://www.w3.org/2002/09/ccxml'
xsi:schemaLocation='http://www.w3.org/2005/07/scxml scxml.xsd
http://www.w3.org/2002/09/ccxml ccxml.xsd' initialstate="start">
<scxml:datamodel>
<scxml:data name="callerId"/>
</scxml:datamodel>
<scxml:state id="start" >
<scxml:onentry>
<scxml:log label="joinTest" expr="'Entering state: start'" />
</scxml:onentry>
<scxml:transition event="ccxml.loaded">
<scxml:log label="joinTest" expr="'The doc was loaded'" />
</scxml:transition>
<scxml:transition event="connection.alerting" >
<scxml:log label="joinTest" expr="'call is alerting'" />
<scxml:assign name="callerId" expr="_eventdata.connectionid" />
<cc:accept />
</scxml:transition>
<scxml:transition event="connection.connected">
<scxml:log label="joinTest" expr="'connection is connected'" />
<cc:createcall connectionid="'calleeId'"
callerid="sip:ccxml@localhost" dest="sip:sipp@localhost" />
</scxml:transition>
<scxml:transition event="connection.progressing" target="join">
<scxml:log label="joinTest" expr="'connection is progressing'"
/>
<scxml:log label="joinTest" expr="'CalleeId: ' + calleeId" />
<scxml:log label="joinTest" expr="'CallerId: ' + callerId" />
</scxml:transition>
</scxml:state>
<scxml:state id="join">
<scxml:onentry>
<scxml:log label="joinTest" expr="'Entering state: join'" />
</scxml:onentry>
<scxml:transition event="connection.connected">
<scxml:log label="joinTest" expr="'connected'" />
<cc:join id1="callerId" id2="calleeId" />
</scxml:transition>
<scxml:transition event="conference.joined">
<scxml:log label="joinTest" expr="'Conference joined - test
succesfull!'" />
</scxml:transition>
<scxml:transition event="connection.disconnected">
<scxml:log label="joinTest" expr="'Disconnected'" />
</scxml:transition>
</scxml:state>
</scxml:scxml>
PS: are you a maven user or netbeans user?
2009/2/3 Saurabh Agarwal <sa...@gmail.com>
> Thanks Jocke,
>
> As of now I want to make a simple application that will recieve INVITE do
> some pattern matching like see for text named search in uri and search the
> user in database and send INVITE to it ,if there are multiple users then
> fork INVITES.
>
> Since I am new to commons-xml can you please help me in understanding when
> an INVITE comes on sailfin, "doInvite" of my servlet gets called .
>
> Can you please tell me how to integrate commons-scxml from there so that
> the
> SIP request goes to the SCXML state machine and using that I can put some
> pattern matching in the state machine and do some processing like forking
> INVITES etc .
>
> Any code snippet will be really helpful.
>
> Thanks a lot .
>
> Saurabh
>
>
>
> On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com> wrote:
>
> > 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 <sa...@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
> > >
> >
>
>
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Saurabh Agarwal <sa...@gmail.com>.
Thanks Jocke,
As of now I want to make a simple application that will recieve INVITE do
some pattern matching like see for text named search in uri and search the
user in database and send INVITE to it ,if there are multiple users then
fork INVITES.
Since I am new to commons-xml can you please help me in understanding when
an INVITE comes on sailfin, "doInvite" of my servlet gets called .
Can you please tell me how to integrate commons-scxml from there so that the
SIP request goes to the SCXML state machine and using that I can put some
pattern matching in the state machine and do some processing like forking
INVITES etc .
Any code snippet will be really helpful.
Thanks a lot .
Saurabh
On Mon, Feb 2, 2009 at 11:20 PM, jocke eriksson <jo...@gmail.com> wrote:
> 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 <sa...@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
> >
>
--
"Successful people make more mistakes because they do more "
Thanks
Saurabh Agarwal
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by jocke eriksson <jo...@gmail.com>.
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 <sa...@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
>
Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Rahul Akolkar <ra...@gmail.com>.
On Mon, Feb 2, 2009 at 11:56 AM, Saurabh Agarwal <sa...@gmail.com> wrote:
> 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.
>
>
<snip/>
OK, but please do not cross-post to multiple lists any more.
This thread is now continued on the user list -- here is a link:
http://markmail.org/thread/mjx66s34rsfo2kek
-Rahul
>
> 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 <ra...@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 <sa...@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
>> >
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>
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Re: [SCXML ]Re: Need some guidance in making a SIP application using
commons-SCXML
Posted by Rahul Akolkar <ra...@gmail.com>.
On Mon, Feb 2, 2009 at 11:56 AM, Saurabh Agarwal <sa...@gmail.com> wrote:
> 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 .
>
<snip/>
Yes, but its neither free nor open-source (its the IBM Rational
tooling in those slides).
Ofcourse, you can try your favorite search engine for any other
options out there.
-Rahul
> Thanks & Regards
> Saurabhj
>
> On Mon, Feb 2, 2009 at 10:05 PM, Rahul Akolkar <ra...@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 <sa...@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
>> >
>>
>
> --
>
> "Successful people make more mistakes because they do more "
> Thanks
> Saurabh Agarwal
>
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