Hi Srinath,
I understand the approach, but just don't see how you can do that with
DFDL. DFDL describes structured binary data. You could probably do some
sort of SOAP-like protocol variation to support it, but AFAIKS it
wouldn't be using anything like StAX - it'd require a typed binary
interface, rather than an XML Infoset interface. DFDL seems much closer
to Sun's "FAST" Web Services project, which uses ASN.1 encoding with
binary transfers of object data (as opposed to the Fast Infoset version,
which is an encoding of XML data). That seems to require much deeper
structural changes than just using a different StAX reader/writer
implementation.
- Dennis
Srinath Perera wrote:
Hi Dennis;
Just to add some info, we are thinking about adding the binary supportby
writing a impl forStax readers and writers works on top of binary protocol. As
Axis2reads and writes using stax .. will not notice any differance.
ThanksSrinath
On 7/13/05, Dennis Sosnoski <[EMAIL PROTECTED]> wrote:> Hi Mark,> > I've been ignoring the Axis/Axis2 lists for a while, so I may have> missed some earlier discussions on this - can you give the reason for> choosing these
two approaches in particular? I'd personally love to see> a comparison between the XBIS format I originated (http://www.xbis.org)> and Fast Infoset. Both of these deal with XML-based representations,> while DFDL (as I understand it) is
strictly binary. Since DFDL doesn't> really relate to XML at all it seems like it'd be difficult to fit it> into the Axis2 structure (including AXIOM) in any reasonable manner.> > - Dennis> > Mark Pimentel wrote:> >
>Hi everyone,> >I'm Mark Pimentel, a computer engineering student from CarnegieMellon, and I'm currently doing a Google Summer of Code(code.google.com) project with Apache Axis 2 on binary XMLserialization. My original proposal is
located online athttp://www.andrew.cmu.edu/user/mpimente/MarkPimentel-SummerOfCode.pdf. My project mentor for this project is Eran Chinthaka.> >I had some delay in getting started, so I've had to push some itemsback on my weekly schedule.
The updated schedule is as follows:> >> >WEEKLY SCHEDULEMark Pimentel, Google Summer of Code 2005> >Week of July 10thConclude research of different formats. Will submit a documentoutlining the major aspects of the two
representations that I will belooking into—Fast Infoset & DFDL. Am currently targeting Fast Infosetas the first schema to implement, and DFDL as the second.> >Week of July 17th Begin implementing a StAX parser to write binary XML data
using theFast Infoset standard. This week, I will concentrate on writing theparser and achieving some type of module with binary serializationfunctionality.> >Week of July 24thWill continue to adapt parser to handle the Fast Infoset
standard. Most of the work this week will be towards expanding supportedlanguage.> >Week of July 31thThe goal for this week is to clean up the first parser code, andperform more extensive testing. I will also prepare any progressreport
information needed by the Google Summer of Code program.> >Week of August 3rdBegin development of parser for DFDL standard. If similar parts ofthe parser from the first can be used, then work from later weeks canbe started.> >Week
of August 14thWill continue fleshing out and expanding DFDL support.> >Week of August 21stAiming for more definite testing and verification of second parser. If time permits, I will also start on a third parser.> >Week of August
28thImplementation of third representation, if possible. Otherwise,return to first two parsers to ensure correctness and correct anyremaining integration issues.> >> >Thanks,Mark> >> >> >>
