Re: [Axis2] SOAP over SIP

[Paul Fremantle <pz...@gmail.com>]

Samir

I'm back :)

I think before we write any code I'd like to understand what use cases
you have in mind. Having done some research, I see that the SOAP/SIP
discussion is all about 3 years old, and there are no other
implementations. So the question I want to ask is - what about XMPP
instead? It seems to me that XMPP/Jabber has many of the same benefits
and there is a lot more work already done on SOAP/XMPP.

However, if there are good use cases, etc for SOAP/SIP that aren't
covered by XMPP then I will certainly be willing to work on it.

Best,
Paul

On Jan 24, 2008 12:58 AM, samir shaikh <aq...@yahoo.com> wrote:
> Paul,
>
> Vacation took me away for 3 weeks. I'm back now for
> SOAP over SIP..
>
> I think it will be a leg up for axis2 to have support
> for the SIP transport independently. SIP messaging is
> very close to WS-Eventing in which a SIP INVITE can
> yield several messages going back to the client.
>
> Its all messaging really ;) but we should decide what
> approach we should take. Do you want to move to
> axis-dev?
>
>
> Samir
>
>
> --- Paul Fremantle <pz...@gmail.com> wrote:
>
> > Samir
> >
> > One more thing we should look at. It seems like the
> > HTTP code we use
> > for non-blocking (HTTPCore) already also has some
> > limited support for
> > SIP!
> >
> > This would mean we would have to code directly to
> > that API (i.e. we
> > wouldn't use the SIP Servlet model). However, this
> > seems to me to have
> > two key benefits.
> >
> > 1) We could probably start from the NHTTP transport
> > and therefore
> > re-use a lot of code
> > 2) We'd end up with a non-blocking SIP transport
> > which is a "good
> > thing" (more efficient)
> >
> > Also the folks over at HTTPCore are incredibly
> > helpful.
> >
> > Paul
> >
> >
> > On Dec 23, 2007 4:58 AM, Demetris G
> > <de...@ece.neu.edu> wrote:
> > >
> > > Likewise Paul - thanks for the pointer.
> > >
> > >
> > > Paul Fremantle wrote:
> > > > Good point!
> > > >
> > > > SIP is basically the standard for doing Voice
> > Over Internet Protocol
> > > > (VOIP) that is used by systems like Vonage,
> > Asterisk, etc to provide
> > > > phoning on the internet.
> > > >
> > > > Merry Christmas and Happy New Year to everyone!
> > > >
> > > > Paul
> > > >
> > > > On Dec 22, 2007 8:29 AM, Demetris G
> > <de...@ece.neu.edu> wrote:
> > > >
> > > >> Echoing Paul's "I didn't know anything about
> > coding SIP in Java" and further
> > > >> seeing these terms flying around this list for
> > a long time now, wouldn't
> > > >> be so
> > > >> much nicer for the rest of us who are willing
> > to learn, for whoever is
> > > >> asking
> > > >> a Q out of the list to also spend 3.5 secs to
> > write down a definition of the
> > > >> term they are requesting help with? I hear
> > POJO, MOJO, GOJO, blah blah
> > > >> and MTOM and this and that and now SIP ... oh
> > sure, everything is just
> > > >> a google away but putting it in the context of
> > the list educates all of
> > > >> us. Just
> > > >> a friendly suggestion ...
> > > >>
> > > >> SIP - away my friends ...
> > > >>
> > > >>
> > > >>
> > > >> Paul Fremantle wrote:
> > > >>
> > > >>> Samir
> > > >>>
> > > >>> Ok so I didn't know anything about coding SIP
> > in Java :)
> > > >>>
> > > >>> Basically, yes we need a reference impl of the
> > SIPServlet spec
> > > >>> (assuming that it has a valid license), and we
> > also need a client SIP
> > > >>> stack too.
> > > >>>
> > > >>> It seems like this is what we need:
> > https://jain-sip.dev.java.net/ tho
> > > >>> I can't find out what license that is under.
> > > >>>
> > > >>> Also I found an interesting alternative to the
> > SIP Servlet which is the JIPlet:
> > > >>>
> > http://www.cafesip.org/projects/jiplet/index.html
> > > >>>
> > > >>> However, I'm not sure its really worth using
> > JIPlet over the SIP
> > > >>> servlet. What are your thoughts?
> > > >>>
> > > >>> Paul
> > > >>>
> > > >>> PS. In HTTP the equivalent is the servlet plus
> > the Commons HTTPClient.
> > > >>> However, the newer non-blocking HTTP is based
> > on an Apache library
> > > >>> called HTTPCore which provides a non-blocking
> > IO version of HTTP.
> > > >>>
> > > >>>
> > > >>>
> > > >>> On Dec 22, 2007 1:08 AM, samir shaikh
> > <aq...@yahoo.com> wrote:
> > > >>>
> > > >>>
> > > >>>> Paul,
> > > >>>>
> > > >>>> What do you mean by base SIP function? Do you
> > mean we
> > > >>>> need some reference implementation of the
> > sipservlet
> > > >>>> specification? can you tell me what it is for
> > http so
> > > >>>> then i can understand what we are looking for
> > here.
> > > >>>>
> > > >>>>
> > > >>>> Samir
> > > >>>>
> > > >>>> --- Paul Fremantle <pz...@gmail.com> wrote:
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>> Samir
> > > >>>>>
> > > >>>>> The usual first step is to identify a
> > library that
> > > >>>>> can be used to
> > > >>>>> provide the base SIP function. Also the
> > library
> > > >>>>> needs to be compatible
> > > >>>>> with Apache Licensing - i.e. it must be Open
> > Source
> > > >>>>> and also not GPL
> > > >>>>> (but LPGL is ok). Obviously if we can find
> > one under
> > > >>>>> the Apache or BSD
> > > >>>>> license that is best.
> > > >>>>>
> > > >>>>> Paul
> > > >>>>>
> > > >>>>> On Dec 21, 2007 12:14 AM, samir shaikh
> > > >>>>> <aq...@yahoo.com> wrote:
> > > >>>>>
> > > >>>>>
> > > >>>>>> Paul,
> > > >>>>>>
> > > >>>>>> I'll be happy to team up with you on this.
> > If you
> > > >>>>>> could lay out for me what is involved that
> > will be
> > > >>>>>> great. We could have something based off of
> > the
> > > >>>>>> sipservlet specification. Meanwhile, I can
> > also
> > > >>>>>> research the existing transports as part of
> > > >>>>>>
> > > >>>>>>
> > > >>>>> synapse.
> > > >>>>>
> > > >>>>>
> > > >>>>>> Samir
> > > >>>>>>
> > > >>>>>>
> > > >>>>>>
> > > >>>>>> --- Paul Fremantle <pz...@gmail.com>
> > wrote:
> > > >>>>>>
> > > >>>>>>
> > > >>>>>>
> > > >>>>>>> Samir
> > > >>>>>>>
> > > >>>>>>> We do not have a SIP transport for SOAP in
> > > >>>>>>>
> > > >>>>>>>
> > > >>>>> Axis2.
> > > >>>>>
> > > >>>>>
> > > >>>>>>> However, if you
> > > >>>>>>> would be willing to help write one we
> > would be
> > > >>>>>>>
> > > >>>>>>>
> > > >>>>> very
> > > >>>>>
> > > >>>>>
> > > >>>>>>> happy to help.
> > > >>>>>>> From my knowledge of SIP it would make a
> > good
> > > >>>>>>> transport and has some
> > > >>>>>>> benefits over HTTP. If you want to see how
> > Axis2
> > > >>>>>>> transports are
> >
> === message truncated ===
>
>
>
>
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-- 
Paul Fremantle
Co-Founder and VP of Technical Sales, WSO2
OASIS WS-RX TC Co-chair

blog: http://pzf.fremantle.org
paul@wso2.com

"Oxygenating the Web Service Platform", www.wso2.com

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