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RE: [xsl] Large content rendering in XSLT

2008-05-19 23:15:34
Hi,

You could consider looking more into the direction of (X)piping. Perhaps
not the newest framework, but Cocoon has support for many times of
dynamic inclusion of content, uses a SAX streaming model as base, but is
capable of handling XSLT as well. It also provides XML producers that
can read HTML and produce SAX/XML out of them, using Jtidy on the
background.

Other frameworks are available as well..

But on the other hand, your problem doesn't sound that complicated, so
it could be overkill just as well..

Kind regards,
Geert


   
 
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From: Senthilkumaravelan K [mailto:skumaravelan(_at_)googlemail(_dot_)com] 
Sent: dinsdag 20 mei 2008 6:51
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Large content rendering in XSLT

We do not have any complicated logic in XSLT and it just 
select of a node a copy of the node.
And I do not need to evaluate the text content and we do not 
do any decode as well.

Actual content of my text document would be something like 
Terms and conditions of any web site.
We need to format it in case of HTML part and use the same 
data for text part for  plain text as well.

I am looking for advise/suggestion is the XSLT fits this kind 
application.
In your example you have mentioned that you are reteieving 
the documents over HTTP .
Are your doing <xsl:copy-of-value
select=document(http://mydomain.com/page.html)"/>

If I go through this kind of approach ,need to have all of 
content should be well-formed and all xslt rules that apply. 
Is there any way to apply XSLT for the existing HTML content?

The reason have mentioned upstream system does need to send 
the larger text for every call they make for transformation 
and further processing. The actual static data should be 
pulled from the external system and used as part of the 
mimemessgae construction,

Hope I am clear on my specification. Let me know if you need 
more input.

Thanks



On Mon, May 19, 2008 at 8:18 PM, James A. Robinson 
<jim(_dot_)robinson(_at_)stanford(_dot_)edu> wrote:

We would like to transform the XML data into HTML and TEXT 
output and 
construct a Mimemessage using java. One of the element would have 
more of Text data like something run into 3-5 page of 
text. We would 
like

Depending on how complicated your logic for the 
transformation needs 
to be, your description so far appears to be reasonable for an 
application of XSLT.

Do you need to simply output the text portions of the 
document, or do 
you need to actually evaluate the text?  I ask because heavy 
manipulation of large amounts of xs:string data might not 
be the best 
thing to do in XSLT alone, depending on the complexity (e.g., if 
you're having to perform decoding operations).

to format the text into HTML and text and tranform the same .
I have taken refund policy  as example ,cause it is easy to 
understand the context.
Application upstream does not want send text data for 
every request.
It should be presisted and ready to use .

I'm not sure what you mean when you say an upstream 
application does 
not want to send text data for every request, or how you think this 
may have an impact on the question you are asking.  If you could 
clarify by perhaps sharing some example XML and brief 
descriptions of 
the kinds of manipulations you will need to perform, that 
might help 
people here give you some advice.

You might also want to give us an idea of what your performance and 
resource requirements are (E.g., do you require response times in 
seconds, milliseconds, or microseconds? Are there are 
limits on memory 
usage?)

I'm not sure how helpful this is, but I can describe a 
fairly simple 
XSLT transformation we are running here which might give 
you a sense 
of the size of documents which can be reasonably 
manipulated with XSLT.

In this simple system we have a number of documents which have a 
hierarchical relationship.  They are Issues which have 
child Article 
documents.  We have written an XSLT stylesheet which can 
dynamically 
retrieve a given Issue and all its child articles, returning a 
composite document.  The XSLT actually retrieves all of its 
documents 
over HTTP from a secondary server (so it isn't reading the 
files off 
of local disk), running each through a fairly light transformation.

Using Saxon-SA 8.x on a dual-core AMD Opteron 1210 machine w/ 8 gb 
memory, it is possible on the first request to transfer a 
4-megabyte 
compound issue document (composed of about 335 individual 
documents) 
in a little under 5 seconds, with an initial response (meaning when 
the first part of the document starts coming back), in .03 seconds.

After the first request the individual documents have been 
pulled into 
a cache (they've been converted into the native Saxon TinyTree 
format), and the same request takes, on average, around 2.1 
seconds to transfer.
As with the initial request, Saxon is able to start feeding 
back the 
response within .03 seconds.


Jim

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
- - - - -
James A. Robinson                       
jim(_dot_)robinson(_at_)stanford(_dot_)edu
Stanford University HighWire Press      
http://highwire.stanford.edu/
+1 650 7237294 (Work)                   +1 650 7259335 (Fax)


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