Re: Unable to convert RTREEFRAG to nodeset

[Reinhard P�tz]

David Leangen wrote:

Hi!

I'm trying to convert a result tree fragment to a nodeset in Cocoon 2.1.3,
but with no success. Just to make sure that I didn't mess anything up with
my Cocoon configuration, I even tried a fresh build, but I get the same
problem.
The closest thing I found to help me solve my problem was the thread:

http://marc.theaimsgroup.com/?l=xml-cocoon-users&m=100517834709158&w=2

Specifically:

 I assume that you are using Xalan when using Cocoon. Then you
 can use the extension-function nodeset():
 http://xml.apache.org/xalan-j/extensionslib.html#nodeset.
 Other processors like MSXML or Saxon have similar functions.
 Joerg

I have tried this approach:

<xsl:stylesheet version="1.0"
 xmlns:xsl  = "http://www.w3.org/1999/XSL/Transform";
 xmlns:xalan= "http://xml.apache.org/xalan";
 exclude-result-prefixes="xalan"
 

 <xsl:template name="tokenize">
   <xsl:param name="string" select="''" />
   <xsl:param name="delimiters" select="' &#x9;&#xA;'" />
   <xsl:variable name="result">
     <tokens>
       <xsl:call-template name="_tokenize">
         <xsl:with-param name="string" select="$string"/>
         <xsl:with-param name="delimiters" select="$delimiters"/>
       </xsl:call-template>
     </tokens>
   </xsl:variable>
   <xsl:value-of select="xalan:nodeset($result)"/>

 </xsl:template>

...

</xsl:stylesheet>

But get this error:

org.apache.cocoon.ProcessingException: Failed to execute pipeline.:
java.lang.RuntimeException: Can not convert #RTREEFRAG to a NodeList!
I have also tried this:

<xsl:stylesheet version="1.0"
 xmlns:xsl  = "http://www.w3.org/1999/XSL/Transform";
 xmlns:nodeset="org.apache.xalan.xslt.extensions.Nodeset"
 exclude-result-prefixes="nodeset"
 

 <xsl:template name="tokenize">
   <xsl:param name="string" select="''" />
   <xsl:param name="delimiters" select="' &#x9;&#xA;'" />
   <xsl:variable name="result">
     <tokens>
       <xsl:call-template name="_tokenize">
         <xsl:with-param name="string" select="$string"/>
         <xsl:with-param name="delimiters" select="$delimiters"/>
       </xsl:call-template>
     </tokens>
   </xsl:variable>
   <xsl:value-of select="nodeset:nodeset($result)"/>

 </xsl:template>

...

</xsl:stylesheet>

But get this error:

org.apache.cocoon.ProcessingException: Failed to execute pipeline.:
java.lang.RuntimeException: java.lang.NoSuchMethodException: For extension
function, could not find method
org.apache.xml.dtm.ref.DTMNodeIterator.nodeset([ExpressionContext,] ).
Any ideas?
 

this is no Cocoon specific problem but the way how XSLT works.
See http://www.biglist.com/lists/xsl-list/archives/200101/msg01379.html 
and http://xml.apache.org/xalan-j/extensionslib.html#nodeset

--
Reinhard
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