[DFDL-WG] [DFDL]: First Release of DFDL4S Parser Library

[Steve Hanson]

Dear Michele

Good to hear from you. Thank you for letting me know about the latest 
developments with S2G Data Viewer. 

I am sure the DFDL Working Group would be interested in a demo of S2G. 
What is your availability on Tuesdays at 4pm-5pm UK? 

Meantime do you have a document that you could send which summarises which 
features of the DFDL language you have used, and some example schemas? 

Please note that the DFDL 1.0 specification was re-published in October 
2014, replacing and obsoleting the version from January 2011.  Does S2G 
comply with the October 2014 version (
https://www.ogf.org/documents/GFD.207.pdf) ?

Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848



From:   Michele Zundo <michele.zundo at esa.int>
To:     Steve Hanson/UK/IBM at IBMGB
Cc:     Montserrat Piñol <mpinol at eopp.esa.int>, Maurizio De Bartolomei 
<Maurizio.De.Bartolomei at esa.int>, "Rui Mestre (DME)" 
<rui.mestre at deimos.com.pt>
Date:   29/04/2015 17:38
Subject:        [DFDL]: First Release of DFDL4S Parser Library



Dear Steve,

we talked some time ago when we presented the tool we developed at ESA 
to inspect satellite TM and which made use of DFDL description for the 
binary data
and we have included a number of your comments at the time.

Since then we have further evolved the tool (called S2G Data Viewer) and 
produced as well a
standalone version of a Java library which performs the function of 
extracting data field from binary data
based on a DFDL description. This library (called DFDL4S  i.e. DFDL for 
Space) is now available
to anybody interested. It implements only the subset of the Core 
capability that we need but I think 
it might be nevertheless interesting for the DFDL community.

In future we plan to expand to write capability the same library so user 
can serialise their data as 
per DFDL description and generate realistically looking (simulated) 
satellite data.

The application and the library are available for download at 
http:eop-cfi.esa.int

If there is interest we could arrange a short demo of the app (using 
webex) or I couldd ask
the developer to show the command line test of the DFDL4S library.

We are very happy/willing to share results/code/etc.

Best Regards

PS we are currently thinking to build “transformation” that can ingest 
different type of descriptive 
representation and generate the corresponding DFDL schemas.



ESA - European Space Agency


Michele Zundo
Head of Ground System Definition and Verification   Office
System Support Division
Earth Observation Project Department
Directorate of Earth Observation Programmes
 
ESTEC
Kepleerlaan 1, 2200AZ Noordwijk, Netherlands
michele.zundo at esa.int | www.esa.int
T. +31 71 565 3924 | F +31 71 565 3191

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