Hello Christian,
Thank you very much for response. I've not found any "designations" substring in
core.log. For the moment I've divided the match on two matches - one for read and
one for write (just for tests).
The match for write is:
<map:match pattern="get_lub">
<map:generate
src="xmldb:xindice://localhost:4080/db/data/somecollection/#//Some_Element"/>
<map:transform src="stylesheets/render_query.xsl"/>
<map:transform type="writeDOMsession">
<map:parameter name="dom-name" value="designations"/>
<map:parameter name="dom-root-element" value="dom"/>
</map:transform>
<map:serialize type="xml"/>
</map:match>
For this match I get empty response.
What's the matter? If I comment writeDOMsession transformer then I get xml like
this:
<?xml version="1.0" encoding="iso-8859-1" ?>
<Elements xmlns:collection="http://apache.org/cocoon/xmldb/1.0";>
<Element id="ID_XXX">. . . </Element>
. . .
</Elements>
However, when writeDOMsession transformer is used then response is empty and in
core.log I can see:
HttpProcessor[8080][0]/XMLDBSource: Querying collection
xmldb:xindice://localhost:4080/db/data/somecollection/; query= //Some_Element
FATAL_E (2002-03-21) 16:54.20:649 [core.xslt-processor] (/bdl/get_lub)
HttpProcessor[8080][0]/TraxErrorHandler: Error in TraxTransformer:
javax.xml.transform.TransformerException: java.lang.NullPointerException
javax.xml.transform.TransformerException: java.lang.NullPointerException
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1230)
at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3139)
at java.lang.Thread.run(Thread.java:484)
---------
java.lang.NullPointerException
at
org.apache.cocoon.transformation.WriteDOMSessionTransformer.storePrefixMapping(WriteDOMSessionTransformer.java:183)
at
org.apache.cocoon.transformation.WriteDOMSessionTransformer.startPrefixMapping(WriteDOMSessionTransformer.java:120)
at
org.apache.xalan.transformer.ResultTreeHandler.startAndAddPrefixMappings(ResultTreeHandler.java:1107)
at
org.apache.xalan.transformer.ResultTreeHandler.flushPending(ResultTreeHandler.java:941)
at
org.apache.xalan.transformer.ResultTreeHandler.endElement(ResultTreeHandler.java:306)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:716)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2186)
at
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2012)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1175)
at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3139)
at java.lang.Thread.run(Thread.java:484)
Looking forward to your help.
Thank you in advance.
Roman
Christian Haul wrote:
> On 21.Mar.2002 -- 12:07 PM, KOZLOV Roman wrote:
> > processed, so that writeDOMsession is called always. Could you please
> > point to errors?
> >
> > <map:match pattern="get_lub">
> > <map:match type="sessionstate" pattern="**">
> > <map:parameter name="attribute-name" value="designations"/>
> > <map:transform type="readDOMsession">
> > <map:parameter name="dom-name" value="designations"/>
> > <map:parameter name="trigger-element" value="/"/>
> > <map:parameter name="position" value="in"/>
> > </map:transform>
> > <map:serialize type="xml"/>
> > </map:match>
> >
> > <map:generate
> > src="xmldb:xindice://localhost:4080/db/data/somecollection/#//Some_Element"/>
> >
> > <map:transform src="stylesheets/render_query.xsl"/>
> > <map:transform type="writeDOMsession">
> > <map:parameter name="dom-name" value="designations"/>
> > <map:parameter name="dom-root-element" value="dom"/>
> > </map:transform>
> > <map:serialize type="xml"/>
> > </map:match>
>
> Roman,
> you seem to be missing a <map:generate/> in the upper
> pipeline. Anyway, could you check with core.log (?) that your session
> actually contains an attribute called "designations"?
>
> Chris.
>
> --
> C h r i s t i a n H a u l
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