We are evaluating C2 for a very large, public, data-dissemination project
(NHGIS.ORG). I would like to build a few small XML visualization tools in
C2 for demonstration purposes. For example, a facility to upload an XML
instance, associate it with a stylesheet living on the server and return
transformed XHTML. The upload need not be saved anywhere on the server;
I'd like to hand the uploading stream directly to Cocoon. I can clearly
see a couple ways to accomplish this but suspect there are more:
a) Specify a servlet external to Cocoon which handles multi-part form data
as the src attr on my generator in the pipeline. How does this kick
off the pipeline's processing? I suspect I need to bind the upload stream
to the pipeline within my servlet and make a call to Cocoon but I'm not
clear how. Or is Cocoon waiting like a daemon for bytes to show up at the
mouth of the pipe?
b) Extend one of Cocoon's generator classes (StreamGenerator?) to handle
the multi-part form data and call it from my form.
c) Is there a way to modify the File Upload example to hand the upcoming
stream to a transformation? It seems that example merely specifies a
directory for uploads and does nothing with the stream itself.
d) ?
What is the cleanest manner of doing this? I suspect there is a Cocoon
pattern lurking in this problem and would like to implement the solution
that best reflects such a pattern.
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Mike Haarman Minnesota Population Center,
[EMAIL PROTECTED] University of Minnesota,
537 Heller Hall,
Minneapolis, MN 55455
Co-Architect, Programmer,
National Historical GIS -- http://www.nhgis.org/
Maintainer,
DDI Codebook DTD -- http://www.icpsr.umich.edu/DDI/
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