Matchers and parameters

In cocoon it is possible to do something like this:

<map:pipeline>
   <map:match pattern="*.vxml">
     <map:generate src="voicexml/{1}.vxml"/>
     <map:transformsrc="transformers/{brs:clientbrowser}/w3voicebrowser.xsl"/>
     <map:call resource="serialize-{brs:clientbrowser}"/>
   </map:match>
</map:pipeline>

Where {1} represents the file name of the requested vxml resource
      {brs:clientBrowser} is a module that returns a string based on user-agent


What is the best way to achieve the above with OPS?

I was thinking that the user-agent detection for final serialization should take
place in the epilogue. But for the transform {brs:clientbrowser} or the
generator {1} filename not sure what is best here?

Regards,
Steve.





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Hi Stephen,

With XPL, all the information that flows in a pipeline is in the form
of XML documents. With the page flow, you can create an initial XML
document that contains the part of the URL you are interested in.
Create a template for that file, say instance.xml with just:

<filename/>

Then in the page flow use:

<page path-info="(.*)\.vxml" matcher="oxf:perl5-matcher"
        default-submission="instance.xml" view="my-view.xpl">
    <setvalue ref="/filename" matcher-group="1"/>
</page>

Then in my-view.xpl, you will get an "instance" input with
<filename>...</filename>. With that you can use XSLT to generate a
configuration for the file generator, connect that configuration to
the file generator, and connect the output of the file generator to
the "data" output of the pipeline.

Then it seems that the XSLT transformation could be done in the
epilogue. I hope this help,

Alex

On 1/9/06, Stephen Thwaites <[hidden email]> wrote:
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