Re: Xalan-J 2 bug: Node.isSupported, XPath:position(), serializer.OutputFormat

[Christoph Reck <Ch...@dlr.de>]

Here the sample XML and XSL code for the bugs mentioned below:

----------- output of SimpleTransform of xalan_1_1_D01 --------------

First the list with apply template:
1 TEST Test entry 
NEWLINE 2 DLR Deutsches Zentrum fuer Luft- und Raumfahrt 
NEWLINE 3 ESA European Space Agency 
NEWLINE 4 Eurimage

Next the same list but with for-each:1 TEST Test entry
NEWLINE 2 DLR Deutsches Zentrum fuer Luft- und Raumfahrt
NEWLINE 3 ESA European Space Agency
NEWLINE 4 Eurimage

And again the list with apply template:1 TEST Test entry 
NEWLINE 2 DLR Deutsches Zentrum fuer Luft- und Raumfahrt 
NEWLINE 3 ESA European Space Agency 
NEWLINE 4 Eurimagecat: cannot open foo.out
------------- end of SimpleTransform of xalan_1_1_D01 ---------------

----------- output of SimpleTransform of xalan-j_2_0_D01 --------------

First the list with apply template:
1 TEST Test entry 
NEWLINE 2 DLR Deutsches Zentrum fuer Luft- und Raumfahrt 
NEWLINE 3 ESA European Space Agency 
NEWLINE 4 Eurimage

Next the same list but with for-each:
NEWLINE 5 TEST Test entry
NEWLINE 6 DLR Deutsches Zentrum fuer Luft- und Raumfahrt
NEWLINE 7 ESA European Space Agency
NEWLINE 8 Eurimage

And again the list with apply template: 
NEWLINE 5 TEST Test entry 
NEWLINE 6 DLR Deutsches Zentrum fuer Luft- und Raumfahrt 
NEWLINE 7 ESA European Space Agency 
NEWLINE 8 Eurimage
------------- end of SimpleTransform of xalan-j_2_0_D01 ---------------
Note the extra NEWLINE at the begining of the latter two blocks
and the erroneous numbering.

------------------------ foo.xml ----------------------------
<GIP>
  <ServiceFacility>G</ServiceFacility>
  <ServiceFunction>U</ServiceFunction>
  <SessionId>*</SessionId>
  <ProgressiveNumber>*</ProgressiveNumber>
  <GipResultCode>_</GipResultCode>
  <TargetService Provider="ESA" Facility="EECF" CollectionId="?" />
  <UpdateStamp ResponsibleForUpdate="TEST" IdentifierForUpdate="000"
     ReasonForUpdate="MUIS-C Test" />
  <SubFunction>A</SubFunction>

  <AttributeValueDescriptor>
    <LastUpdate>2000-01-24 18:00:00.00</LastUpdate>
    <AttributeId>DPRO</AttributeId>
    <AttributeValue>TEST</AttributeValue>
    <Provider>TEST</Provider>
    <ShortCode>TEST</ShortCode>
    <ShortName>TEST</ShortName>
    <LongName>Test entry</LongName>
    <Abstract>?</Abstract>
    <DocumentReference />
  </AttributeValueDescriptor>

  <AttributeValueDescriptor>
    <LastUpdate>2000-01-24 18:00:00.00</LastUpdate>
    <AttributeId>DPRO</AttributeId>
    <AttributeValue>DLR</AttributeValue>
    <Provider>DLR</Provider>
    <ShortCode>DLR</ShortCode>
    <ShortName>DLR</ShortName>
    <LongName>Deutsches Zentrum fuer Luft- und Raumfahrt</LongName>
    <Abstract>?</Abstract>
    <DocumentReference DocumentPointer="http://isis.dlr.de"
       DocumentDescription="DLR Description" />
  </AttributeValueDescriptor>

  <AttributeValueDescriptor>
    <LastUpdate>2000-01-24 18:00:00.00</LastUpdate>
    <AttributeId>DPRO</AttributeId>
    <AttributeValue>ESA</AttributeValue>
    <Provider>ESA</Provider>
    <ShortCode>ESA</ShortCode>
    <ShortName>ESA</ShortName>
    <LongName>European Space Agency</LongName>
    <Abstract>?</Abstract>
    <DocumentReference DocumentPointer="http://www.esa.int"
       DocumentDescription="ESA Description" />
  </AttributeValueDescriptor>

  <AttributeValueDescriptor>
    <LastUpdate>2000-01-24 18:00:00.00</LastUpdate>
    <AttributeId>DPRO</AttributeId>
    <AttributeValue>Eurimage</AttributeValue>
    <Provider>Eurimage</Provider>
    <ShortCode>Eurimage</ShortCode>
    <ShortName>Eurimage</ShortName>
    <LongName>Eurimage</LongName>
    <Abstract>?</Abstract>
    <DocumentReference />
  </AttributeValueDescriptor>

   <AttributeValueDescriptor>
      <LastUpdate>2000-11-07T09:58</LastUpdate>
      <AttributeId>*AID</AttributeId>
      <AttributeValue>DPRO</AttributeValue>
      <ShortName>Provider</ShortName>
   </AttributeValueDescriptor>

   <AttributeValueDescriptor>
      <LastUpdate>2000-11-07T09:58</LastUpdate>
      <AttributeId>*AID</AttributeId>
      <AttributeValue>DFAC</AttributeValue>
      <ShortName>Facility</ShortName>
   </AttributeValueDescriptor>

</GIP>
-------------------- end of foo.xml -------------------------

------------------------ foo.xsl ----------------------------
<?xml version="1.0"?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="text" />

<!-- example extract to format valids -->
<xsl:template match="*" >
 <xsl:variable name="list" select="AttributeValueDescriptor[AttributeId='DPRO']" />
<xsl:text>
First the list with apply template:
</xsl:text>
 <xsl:apply-templates select="$list" mode="called" />

 <xsl:text>

Next the same list but with for-each:</xsl:text>

 <xsl:for-each select="$list">
   <!-- ### the first entry should not emit a new line -->
   <xsl:if test="position() != 1"><xsl:text>
NEWLINE </xsl:text>
   </xsl:if>
   <!-- ### this is emitting wrong number in XalanJ2 (it seems to be the output position) -->
   <xsl:value-of select="position()" /> 
   <xsl:text> </xsl:text><xsl:value-of select="ShortName" />
   <xsl:if test="ShortName != LongName">
     <xsl:text> </xsl:text><xsl:value-of select="LongName" />
   </xsl:if>
 </xsl:for-each>

 <xsl:text>

And again the list with apply template:</xsl:text>
 <xsl:apply-templates select="$list" mode="called" />

</xsl:template>

<xsl:template match="AttributeValueDescriptor" mode="called" >
   <!-- ### the first entry should not emit a new line -->
   <xsl:if test="position() != 1"><xsl:text> 
NEWLINE </xsl:text>
   </xsl:if>
   <!-- ### this is emitting wrong number in XalanJ2 -->
   <xsl:value-of select="position()" /> 
   <xsl:text> </xsl:text><xsl:value-of select="ShortName" />
   <xsl:if test="ShortName != LongName">
     <xsl:text> </xsl:text><xsl:value-of select="LongName" />
   </xsl:if>
</xsl:template>

</xsl:stylesheet>
-------------------- end of foo.xsl -------------------------

Gary L Peskin wrote:
> 
> Christoph Reck wrote:
> >
> > Hi,
> >
> > going from Xalan 1.1_D01 to Xalan 2.0_D01 I found the following
> > problems:
> >
> > 1. The org.w3c.Node included in Xalan defines a method supports(),
> >    whereas the W3C standard is defining isSupported() for DOM2.
> >    This causes problems e.g. in xpath.axes.ChildWalkerOneStep.nextNode()
> >    emitting a AbstractMethodException when the xerces_1.2.X.jar is
> >    before the xalan.jar.
> 
> You need to use the version of xerces.jar that comes with Xalan.  Xalan
> 1.1_D01 is an older Xalan version and requires the old Xerces. Xalan 2.0
> requires the new Xerces.  This has been fixed in the latest builds of
> both versions of Xalan so that you should be able to use the latest
> version of Xerces with the latest versions of both XalanJ 1 and XalanJ
> 2.

I am using the xerces.jar within xalan-j_2_0_D01. Pasing the CVSWEB
of xalan-j_2_0_D02, this seems to be fixed (The 2_0_D02 version does 
not seem to be yet downloadable?).

> 
> > 2. The position() function in XPath is returning relative positions.
> >    When doing an apply-templates on a selected subset, the first
> >    element in the template match is not 1 as it was in the earlyer
> >    Xalan implementation. I have found no workaround for this:
> >      <xsl:if test="position &gt; 1"><br/></xsl:if>
> >    to separate continuation lines for each other.
> >
> >    It seems that Xalan2 does not make a copy, but select... returns a
> >    NodeList referencing the original nodes and their position is
> >    then relative to the source and not to the select.
> 
> Can you please provide a sample XML and XSL and I'll see if it causes a
> problem with the latest version of Xalan 2?

see examples above.

> 
> > 3. org.apache.xml.serializer.OutputFormat does not respect the
> >    setOmitXMLDeclaration(true) flag. Previous xerces version
> >    did not emit the doctype declaration, the new xerces.jar does
> >    emit it (this is really a xerces bug).
> 
> This may also be fixed in the latest version of Xerces.  Can you provide
> sample XML and XSL?

Note that if the XSL contains <xsl:output method="text" />,
it does not emit anything, but without it xalan-j_2_0_D01 emits
the <?xml ...> directive.

-------------------- code to format the output -------------------
    /**
     * Format XML indented nicely.
     *
     * @param xml The XML node to pretty print.
     * @return A string with the XML prettely formatted.
     */
    public String format(Node xml, int indent, String indentOffset)
    {
        OutputFormat fmt = new OutputFormat();
        fmt.setIndent(indent);
        fmt.setLineSeparator("\n" + indentOffset);
        fmt.setOmitXMLDeclaration(true);
        ByteArrayOutputStream buf = new ByteArrayOutputStream();
        HTMLSerializer serializer = new HTMLSerializer(buf, fmt);
        try {
            if (xml instanceof Element)
              serializer.serialize( (Element) xml );
            else if (xml instanceof Document)
              serializer.serialize( ((Document) xml).getDocumentElement() );
            else
              serializer.serialize( xml.getOwnerDocument() );
        } catch (Exception ex) {
            // ignore
        }

        return buf.toString();
    }
------------------ end of code to format the output -----------------

> 
> Gary


:) Christoph

Re: Xalan-J 2 bug: Node.isSupported, XPath:position(), serializer.OutputFormat

[Gary L Peskin <ga...@firstech.com>]

Christoph Reck wrote:
> 
> Here the sample XML and XSL code for the bugs mentioned below:

Chris --

I just tried this with the current version of XalanJ2 built from CVS and
I get exactly the same output that you get from XalanJ1.  There was a
bug with position() which was fixed a while back but after XalanJ
2.0.D01 and I think that that's what was causing your problem.

Scott has said that a new alpha version of XalanJ2 should be out soon. 
In the meantime, you'll need to do a build from the CVS source.

Gary