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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Bad News on IE6 XML Support
 Hello Bjorn, Bjorn said: Yes? Sounds cool. How is this supposed to work? Is there some new web service XSLT transfer protocol that provides this information? I thought all information the server has are those in the HTTP request and they certainly don't carry these information. Didier replies: Yes true, CC/PP is not implemented yet and therefore the request transaction does not include a capabilities record. However, as Cocoon and several other server on the market demonstrated, it is possible to recognize the user agent by parsing and processing the HTTP header "user-agent". Thus, it is possible to recognize the requesting user agent and let the server decide if the transformation is to occur on the server side or the client side. So the answer is yes. It is possible to extract the information form the HTTP header as long as you process it. Didier said: >If yes, the process can occur at the edge or at the client site. >Otherwise at the server side. As more client support XSLT transformation, >less server load you'll have. Is using a 1 ghz client to perform dummy >rendering a best way to use resources? Bjorn replied: Maybe, maybe not. Why does this matter? Didier replies: I though you would see why. But again, I just learn for the Nth time how to spell the word assume. I'll recap and do some math's. a) a transformation takes 1 second to transform a document b) you get simultaneous 1000 hits on your server. Therefore the processing time reserved for transformation is: 1 X 1000 = 1000 seconds. c) if the transformation occurs on the server side, this same server just got its workload increased especially if the processed XML document is dynamically produced by a server side script. d) if the transformation occurs on the client side, then the server has 1000 seconds available to do something else like for instance, dynamically produce the XML documents or perform server side aggregation on the same XML documents. Didier PH Martin 
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