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From Brian Johnson <johns...@yahoo.com>
Subject Re: Using XSLTC with Cocoon
Date Tue, 26 Nov 2002 13:44:32 GMT
Can you post your map:transformer section for the XSTLC transformer?

On Mon, 2002-11-25 at 12:30, Tyson Nunemacher wrote:
> Hi there,
> 
>  
> 
> Perhaps someone can help me.  I was looking into using XSLTC as my XSL
> transformer with Cocoon 2.0.3.  I found some instructions on the
> Cocoon Wiki site (http://outerthought.net/wiki/Wiki.jsp?page=XSLTC),
> and followed them carefully, but when I tried out the transformer with
> a dirt simple pipeline (generate from a simple xml file, transform
> with XSLTC, serialize to XML), I got NPEs as follows:
> 
>  
> 
> ERROR   (2002-11-25) 10:03.15:031   [sitemap]
> (/BMGReports/ProjX/test.xml) HttpProcessor[8080][4]/PipelineNode:
> Error while processing pipeline at
> file:/C:/tomcat-4.1.12/webapps/BMGReports/ProjX/subsitemap.xmap:62:20
> 
> org.apache.cocoon.ProcessingException: Exception during processing of
> file:/C:/tomcat-4.1.12/webapps/BMGReports/transforms/test.xsl:
> java.lang.NullPointerException
> 
>             at
> org.apache.cocoon.components.source.AbstractStreamSource.toSAX(AbstractStreamSource.java:211)
> 
>             at
> org.apache.cocoon.components.xslt.XSLTProcessorImpl.getTransformerHandler(XSLTProcessorImpl.java:268)
> 
>             at
> org.apache.cocoon.components.xslt.XSLTProcessorImpl.getTransformerHandler(XSLTProcessorImpl.java:239)
> 
>             at
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:298)
> 
>             . . .
> 
> java.lang.NullPointerException
> 
>             at
> org.apache.xalan.xsltc.compiler.Parser.getQName(Parser.java:303)
> 
>             at
> org.apache.xalan.xsltc.compiler.Parser.makeInstance(Parser.java:818)
> 
>             at
> org.apache.xalan.xsltc.compiler.Parser.startElement(Parser.java:1100)
> 
>             at
> org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:454)
> 
>             . . . 
> 
> ERROR   (2002-11-25) 10:03.15:109   [sitemap]
> (/BMGReports/ProjX/test.xml) HttpProcessor[8080][4]/PipelineNode:
> error notifier barfs
> 
> org.apache.cocoon.ProcessingException: Exception during processing of
> file:/C:/tomcat-4.1.12/webapps/BMGReports/transforms/system/error2html.xsl: java.lang.NullPointerException
> 
>             at
> org.apache.cocoon.components.source.AbstractStreamSource.toSAX(AbstractStreamSource.java:211)
> 
>             at
> org.apache.cocoon.components.xslt.XSLTProcessorImpl.getTransformerHandler(XSLTProcessorImpl.java:268)
> 
>             at
> org.apache.cocoon.components.xslt.XSLTProcessorImpl.getTransformerHandler(XSLTProcessorImpl.java:239)
> 
>             at
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:298)
> 
>             . . .
> 
>  
> 
> I like the “barfs” error.  In any case, it looks like the XSLTC
> processor isn’t set up properly, and when I have my error pipe
> transform the error, that fails, too.  Here’s my XML and XSL files:
> 
>  
> 
> test.xsl:
> 
> <?xml version="1.0"?>
> 
>  
> 
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 
>   
> 
>   <xsl:template match="test">
> 
>     <xsl:copy-of select="." />
> 
>   </xsl:template>
> 
>         
> 
> </xsl:stylesheet>
> 
>  
> 
> test.xml:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> 
> <test>
> 
>   <stuff>Test</stuff>
> 
> </test>
> 
>  
> 
> My pipe looks like this:
> 
>  
> 
>     <map:match pattern="test.xml">
> 
>        <map:generate src="../xml/test.xml" />
> 
>        <map:transform type="xslt-xsltc" src="../transforms/test.xsl"
> />
> 
>        <map:serialize type="xml" />
> 
>      </map:match>
> 
>  
> 
> I have Xalan (2.3.1) running side by side with XSLTC, as indicated in
> the how-to on the wiki site.  I’m running on Tomcat 4.1.12 standalone
> at the moment.  Xerces is the parser.  The pipe works fine with
> straight Xalan.
> 
>  
> 
> So, I’m curious.  Does anyone have any insight into why XSLTC may or
> may not work the way I have it set up, which is how it’s described on
> the wiki site?  And did I hear that there were some issues with XSLTC
> that make its integration with Cocoon less than ideal?  Is there a
> reason I should avoid using it with Cocoon 2.0.3 in its current form,
> given that I’m looking for performance improvements which may help me
> out with scalability?
> 
>  
> 
> Thanks in advance for any advice,
> 
> Tyson Nunemacher
> 
> 


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