[DAS2] das1->das2 proxy adapter

Ed Erwin ed_erwin at affymetrix.com
Mon Oct 30 22:26:38 UTC 2006

Thanks Andrew,

That sounds really useful.  It might be nice to try to run the current 
NetAffx DAS/1 server through this translation and see what comes out the 
other end.  How would we need to do that?  Do we download your code and 
run it ourselves, or will you have some server that we can pass the data 


Andrew Dalke wrote:
> As part of my effort to make sure DAS2 supports at least what
> DAS1 can do, and to simplify migration from DAS1 to DAS2,
> I have over this week developed a partial proxy adapter.  It's
> a DAS2 server which translates the request then forwards it
> to a DAS1 server (including the "segment" and "overlaps"
> feature filters).
> It takes the results and reformats them into DAS2 format.  I
> had used a template approach for this but that proved slow for
> for large responses.  I rewrote the code so I generate the XML
> by hand, which also gives me a chance to put in a lot more
> validation code for DAS1.  The goal there is to ensure that
> I catch all the extensions people added to DAS1.
> 					Andrew
> 					dalke at dalkescientific.com
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> DAS2 at lists.open-bio.org
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