Re: cannot find the namespace declarations from an extension function

Here it is:

1) the test xsl

<?xml version="1.0" encoding="UTF-8"?>
<stylesheet version="1.0" xmlns="http://www.w3.org/1999/XSL/Transform"
   xmlns:xalan="http://xml.apache.org/xalan"
   xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
   xmlns:gen="com.acme.apps"
   xmlns:myext="com.acme.apps.XalanExtensionFunctionsTest"
   exclude-result-prefixes="xalan gen wsdl"
   extension-element-prefixes="myext">

   <output method="xml" encoding="UTF-8" version="1.0"
     media-type="text/xml" indent="yes" xalan:indent-amount="2" />

   <template match="/">
     <gen:report>
       <apply-templates />
     </gen:report>
   </template>

   <template match="wsdl:definitions">
     <gen:configuration>
       <!-- BUG: couldn't make it work here -->
       <copy-of select="xalan:checkEnvironment()" />
     </gen:configuration>
     <gen:test func="sayHello">
       <value-of select="myext:sayHello()" />
     </gen:test>
     <gen:test func="lookupNamespaceUri">
       <!-- PROBLEM: works for 'wsdl' prefix,
            for 'tns' and everything else,
            e.g. 'soap', 'xsd', etc., returns null
            -->
       <value-of select="myext:lookupNamespaceUri(current(), 'tns')" />
     </gen:test>
   </template>
</stylesheet>

2) the test xml can be found here: 
http://www.webservicex.net/ConvertTemperature.asmx?wsdl

3) the test:
package com.acme.apps;

import java.io.File;
import java.io.IOException;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import junit.framework.TestCase;

import org.w3c.dom.Node;

public final class XalanExtensionFunctionsTest
         extends TestCase {
     private static final String TEST_ROOT_DIR = "target/test-classes";

     private static final String TEST_XML =
         "com/acme/apps/convert-temperature-service.wsdl";

     private static final File TEST_XML_FILE =
         new File(TEST_ROOT_DIR, TEST_XML);

     private static final String TEST_XSL = "com/acme/apps/test.xsl";

     private static final File TEST_XSL_FILE =
         new File(TEST_ROOT_DIR, TEST_XSL);

     private static final String TEST_OUTPUT =
         "com/acme/apps/test.out.xml";

     private static final File TEST_OUTPUT_FILE =
         new File(TEST_ROOT_DIR, TEST_OUTPUT);

     public static String lookupNamespaceUri(final Node currentNode,
             final String prefix) {
         final String namespaceUri;

         namespaceUri =
             currentNode.getOwnerDocument().getDocumentElement()
                 .lookupNamespaceURI(prefix);

         return namespaceUri;
     }

     public static String sayHello() {
         return "Hello, world!";
     }

     private Transformer getTransformerFor(final File xsl)
             throws TransformerFactoryConfigurationError,
             TransformerConfigurationException {
         final TransformerFactory transformerFactory =
             TransformerFactory.newInstance();
         final Transformer transformer =
             transformerFactory.newTransformer(new StreamSource(xsl));
         return transformer;
     }

     public void testLookupNamespaceUri()
             throws TransformerConfigurationException,
             TransformerException, IOException {
         final Transformer transformer =
             getTransformerFor(TEST_XSL_FILE);

         transformer.transform(new StreamSource(TEST_XML_FILE),
             new StreamResult(TEST_OUTPUT_FILE));
     }
}

I will create project zip and post it here later.

Adrian.

Michael Ludwig wrote:
> Adrian Herscu schrieb:
>>
>> Imagine few nested loops like the one above...
> 
>> Tried to enumerate the attributes of the root element and the
>> namespace attributes are not returned -- any clues?
> 
> How about posting a *miniature* example of input XML, XSL and Java code
> that reproduces the behaviour you're seeing, along with a description of
> how the output doesn't meet your expectations? That might be more likely
> to help people figure out what's going on than relying, for the most
> part, on imagination.
> 
> Michael Ludwig
>