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Multiple XSLT transformations with intermediate files

From: Patrick Gundlach <patrick@gundla.ch>
Date: Thu, 17 May 2012 15:57:49 +0200
Message-Id: <1D0C4C6F-7AAF-4FBE-8F51-B2F1317CB7B9@gundla.ch>
To: xproc-dev@w3.org
Hello all,

I am a newbee and not sure if this is the right place to ask. 

( This is also a duplicate of http://stackoverflow.com/questions/10636613/xproc-multiple-xslt-tranformation-with-intermediate-files - but I think I get better answers here )

Why do I get the errors mentioned below? What is the right way to connect the pipelines?


I need to do several XSLT transformations with intermediate XML files. 

    first.xml ------------>   intermediate.xml ------------> final.xml
               first.xsl                         final.xsl

I'd like to create an XProc pipleline. I have tried to write the following code, but this gives me an error:


    SCHWERWIEGEND: runxslt.xpl:26:44:err:XD0011:Could not read: intermediate.xml 
    17.05.2012 15:15:35 com.xmlcalabash.drivers.Main error
    SCHWERWIEGEND: It is a dynamic error if the resource referenced by a p:document element does not exist, cannot be accessed, or is not a well-formed XML document.
    17.05.2012 15:15:35 com.xmlcalabash.drivers.Main error
    SCHWERWIEGEND: Underlying exception: net.sf.saxon.s9api.SaxonApiException: I/O error reported by XML parser processing file:/<somepath>/intermediate.xml:
    /<somepath>/intermediate.xml (No such file or directory)

(where SCHWERWIEGEND means something like FATAL) So obviously the file `intermediate.xml` has not been written.

This is the `xpl`-document that I have used:

    <?xml version="1.0" encoding="UTF-8"?>
    <p:declare-step xmlns:p="http://www.w3.org/ns/xproc"
      xmlns:c="http://www.w3.org/ns/xproc-step" version="1.0">
    
      <p:input port="source">
        <p:document href="first.xml"/>
      </p:input>
      
      <p:output port="result" sequence="true">
        <p:empty/>
      </p:output>
    
      <p:xslt name="first-to-intermediate">
        <p:input port="stylesheet">
          <p:document href="first.xsl"/>
        </p:input>
        <p:input port="parameters">
          <p:empty/>
        </p:input>
      </p:xslt>
    
      <p:store href="intermediate.xml" />
      
      <p:xslt>
        <p:input port="source">
          <p:document href="intermediate.xml"/>
        </p:input>
        <p:input port="stylesheet">
          <p:document href="final.xsl"/>
        </p:input>
        <p:input port="parameters">
          <p:empty/>
        </p:input>
      </p:xslt>
      
      <p:store href="final.xml"/>
      
    </p:declare-step>

Just for the sake of completeness: these are the transformation files:

source.xml:

    <root>
      <element name="A" />
    </root>

first.xsl:

    <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      version="2.0">
      <xsl:output indent="yes"/>
      
      <xsl:template match="root">
        <root>
          <xsl:apply-templates/>
        </root>
      </xsl:template>
      <xsl:template match="element">
        <intermediate name="A" />
      </xsl:template>
      
    </xsl:stylesheet>
    
final.xsl:

    <?xml version="1.0" encoding="UTF-8"?>
    <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      version="2.0">
      <xsl:output indent="yes"/>
      
      <xsl:template match="root">
        <root>
          <xsl:apply-templates/>
        </root>
      </xsl:template>
      <xsl:template match="intermediate">
        <final name="A" />
      </xsl:template>
      
    </xsl:stylesheet>
    


Thanks

Patrick
Received on Saturday, 19 May 2012 05:41:16 GMT

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