FW: TransformedDocument element

["Nick Pope" <pope@secstan.com>]

Forwarding issue from DSS interop.

I suggest that we look at this once the revised draft Core has been
produced.

Nick

-----Original Message-----
From: Andreas Kuehne [mailto:akuehne@yahoo.com]
Sent: 17 June 2005 11:03
To: scabre@ac.upc.edu; Edward Shallow; Konrad Lanz; Nick Pope; Tommy
Lindberg
Cc: cruellas@ac.upc.edu
Subject: Re: TransformedDocument element


Hi Sergi,

I guess we don't solve this by just 'base64 coding' the problem. You still
got the problem after
you decoded the transform result and want to do further processing. The
information about the
result type of the XPath operation is lost. On some cases you can't guess if
it once was a tree
fragment or just a funny string.
To take out some complexety I would vote for restricting the transformed
result to a tree
fragment. We just have to introduce a new holder ( like 'dssTreeFragment' )
for this because
dss:Document is too narrow.

Greetings

Andreas

--- "scabre@ac.upc.edu" <scabre@ac.upc.edu> wrote:

> Hi,
>
> In section 4.6.8 of the DSS draft is described the optional output that
> contains the result of applying all the transforms to the referenced
> document. This result is inserted into a dss:Document element so "the
> hash value of the returned document should equal the <ds:Reference>
> element's <ds:DigestValue>". However, not all transforms produce as a
> result an xml document. For instance, given this document:
>
> <?xml version="1.0" encoding="UTF-8" ?>
> - <#> <Doc>
>           <child1 Id="aaa">Text1</child1>
>       <child2 Id="bbb">Text2</child2>
> </Doc>
>
> If we apply the xpath transform with xpath expresion:
>     ancestor::child1
> to this document, the result will be:
>      Id="aaa"Text1
>
> This result is not an xml document, so it can not be put into a
> Document. Moreover, some transforms such as some XSLT transforms can
> produce as a result a binary document.
>
> Maybe a possible solution would be to base 64 encode the result if it is
> not an xml?
>
> Regards,
>
> Juan Carlos and Sergi
>


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