[xsl] XSL Dominos

[Nick Leaton <nickle@xxxxxxxxx>]

Passing xml as parameters

I have a problem with passing xml fragments as parameters.

I have several different formats. In order to make life easy, I have a
simple common message format.

A simple case is this.

So I have a xsl that transforms formatA to cmf. I have another xsl
that transforms cmf to html.

What I would like to do is to create an xsl that combines the two xsls
to make a new xsl that
goes direct from formata to html. A bit like dominos. 6:1 with a 1:3 makes a 6:3

So, I've split this into 5 files. First is a formata file that
converts formata to cmf.
Second is a html file that converts cmf to html. I then have what
appears at first sight
a couple of redundant files, formata-cmf.xsl which calls the
conversion in formata.xsl,
and another cmf-html.xsl that converts cmf to html.  I then want to
combine the two conversions in
one, domino style.

However I get different behaviour when I pass on xml fragments, rather
than going through the files.

I've cut down the problem to a smallish(!?) set of files.

Any ideas?

Any other improvements welcome too!

Thanks

Nick


The first looks like this

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
    exclude-result-prefixes="#all"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema";
    xmlns:fn="http://www.w3.org/2005/xpath-functions";>

    <xsl:import href="FormatA.xsl"/>

    <xsl:output method="xml" indent="yes"/>

    <xsl:template match="/MESSAGE">
        <message>
            <xsl:call-template name="formata-cmf">
                <xsl:with-param name="message" select="TRADE"/>
            </xsl:call-template>
        </message>
    </xsl:template>

    <xsl:template match="text()"/>

</xsl:stylesheet>

and the second looks like this

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
    exclude-result-prefixes="#all"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema";
    xmlns:fn="http://www.w3.org/2005/xpath-functions";>

    <xsl:import href="html.xsl"/>


    <xsl:output
        indent="yes"
        method="xml"
        encoding="iso-8859-1"
        doctype-public="-//W3C//DTD XHTML 2.0//EN"
        doctype-system="http://www.w3.org/TR/xhtml11/DTD/xhtml2.dtd";
    />

    <xsl:template match="/message">
        <xsl:call-template name="cmf-html">
            <xsl:with-param name="message" select="trade"/>
        </xsl:call-template>
    </xsl:template>

    <xsl:template match="text()" />

</xsl:stylesheet>


Applied in turn to a formata.xml, I get a correct cmf.xml output.
If I take that output and feed it into the cmf-html, I get the correct
answer too.

However, I now try and create a formata-html.xsl that looks like this.
This is the domino idea

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
    exclude-result-prefixes="#all"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema";
    xmlns:fn="http://www.w3.org/2005/xpath-functions";>

    <xsl:import href="formata.xsl"/>
    <xsl:import href="html.xsl"/>

    <xsl:output
        indent="yes"
        method="xml"
        encoding="iso-8859-1"
        doctype-public="-//W3C//DTD XHTML 2.0//EN"
        doctype-system="http://www.w3.org/TR/xhtml11/DTD/xhtml2.dtd";
    />

    <xsl:template match="/MESSAGE">
        <xsl:variable name="cmf">
            <xsl:call-template name="formata-cmf">
                <xsl:with-param name="message" select="TRADE"/>
            </xsl:call-template>
        </xsl:variable>
        <xsl:call-template name="cmf-html">
            <xsl:with-param name="message" select="$cmf"/>
        </xsl:call-template>
    </xsl:template>

    <xsl:template match="text()"/>

</xsl:stylesheet>


I've tried the call in two ways. Above sets a variable to the cmf
fragment, and then passes it on.

However I get different behaviour from output. It's rather strange.

Here are the other files

Any ideas as to why?

Nick

======================
FormatA.xml

<?xml version="1.0" encoding="UTF-8"?>
<MESSAGE>
    <TYPE>INSERT_TRADE</TYPE>
    <VERSION>1.0</VERSION>
    <TIME>2010-05-18 08:01:32</TIME>
    <SOURCE>amba</SOURCE>
    <TRADE>
        <TRDNBR>99999</TRDNBR>
        <PRFNBR.PRFID>Finance</PRFNBR.PRFID>
        <INSADDR.ISIN>ES0264101017</INSADDR.ISIN>
        <INSADDR.INSID>EUR/CPNCD/MINICE4.81 11/34 /341129/4.81</INSADDR.INSID>
        <CURR.INSID>EUR</CURR.INSID>
        <ACQUIRE_DAY>2010-04-23</ACQUIRE_DAY>
        <VALUE_DAY>2010-04-23</VALUE_DAY>
        <INSADDR.ISIN>ES0264101017</INSADDR.ISIN>
        <INSTRUMENT>
            <INSID>EUR/CPNCD/MINICE4.81 11/34 /341129/4.81</INSID>
            <GENERIC>No</GENERIC>
            <NOTIONAL>No</NOTIONAL>
            <INSTYPE>INS_BOND</INSTYPE>
            <ISIN>ES0264101017</ISIN>
        </INSTRUMENT>
    </TRADE>
</MESSAGE>


CMF.xml

<?xml version="1.0" encoding="UTF-8"?>
<message>
   <trade>
      <tradeid>99999</tradeid>
      <currency>EUR</currency>
      <acquireday>2010-04-23</acquireday>
      <valueday>2010-04-23</valueday>
      <portfolio>Finance</portfolio>
      <instrument>
         <isin>ES0264101017</isin>
         <instype>BOND</instype>
      </instrument>
   </trade>
</message>

html.html

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
  PUBLIC "-//W3C//DTD XHTML 2.0//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml2.dtd";>
<html>
   <head>
      <title>Trade</title>
      <link rel="stylesheet" type="text/css" href="tradesheet.css"/>
   </head>
   <body>
      <div id="trade">
         <h2>Trade</h2>
         <table summary="Table shows list of fields for a trade" border="1">
            <tr>
               <th id="labeltrade">label</th>
               <th id="valuetrade">value</th>
            </tr>
            <tr>
               <td>tradeid</td>
               <td>99999</td>
            </tr>
            <tr>
               <td>currency</td>
               <td>EUR</td>
            </tr>
            <tr>
               <td>acquireday</td>
               <td>2010-04-23</td>
            </tr>
            <tr>
               <td>valueday</td>
               <td>2010-04-23</td>
            </tr>
            <tr>
               <td>portfolio</td>
               <td>Finance</td>
            </tr>
            <tr>
               <td>instrument</td>
               <td>


        </td>
            </tr>
            <tr>
               <td>isin</td>
               <td>ES0264101017</td>
            </tr>
            <tr>
               <td>instype</td>
               <td>BOND</td>
            </tr>
         </table>
      </div>
      <div id="instrument">
         <h2>Instrument</h2>
         <table summary="Table shows list of fields for a instrument"
border="1">
            <tr>
               <th id="labelinstrument">label</th>
               <th id="valueinstrument">value</th>
            </tr>
            <tr>
               <td>instrument</td>
               <td>


        </td>
            </tr>
            <tr>
               <td>isin</td>
               <td>ES0264101017</td>
            </tr>
            <tr>
               <td>instype</td>
               <td>BOND</td>
            </tr>
         </table>
      </div>
   </body>
</html>

[**** Instrument section is populated ****]

FormatA.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
    exclude-result-prefixes="#all"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema";
    xmlns:fn="http://www.w3.org/2005/xpath-functions";>

    <!-- ********************************* from formata
********************************* -->

    <xsl:template name="formata-cmf">
        <xsl:param name="message"/>
        <trade>
            <tradeid>
                <xsl:value-of select="$message/TRDNBR"/>
            </tradeid>
            <currency>
                <xsl:value-of select="$message/CURR.INSID"/>
            </currency>
            <acquireday>
                <xsl:value-of select="$message/ACQUIRE_DAY"/>
            </acquireday>
            <valueday>
                <xsl:value-of select="$message/VALUE_DAY"/>
            </valueday>
            <portfolio>
                <xsl:value-of select="$message/PRFNBR.PRFID"/>
            </portfolio>
            <xsl:call-template name="formata-instrument-cmf">
                <xsl:with-param name="message" select="$message/INSTRUMENT"/>
            </xsl:call-template>
        </trade>
    </xsl:template>

    <xsl:template name="formata-instrument-cmf">
        <xsl:param name="message"/>
        <instrument>
            <isin>
                <xsl:value-of select="$message/ISIN"/>
            </isin>
            <instype>
                <xsl:call-template name="formata-instype-cmf">
                    <xsl:with-param name="message" select="$message/INSTYPE"/>
                </xsl:call-template>
            </instype>
        </instrument>
    </xsl:template>

    <!-- ********************************* Mappers
********************************* -->

    <!-- Convert a formata day instype -->

    <xsl:template name="formata-instype-cmf">
        <xsl:param name="message"/>
        <xsl:value-of select="fn:substring($message,5)"/>
    </xsl:template>

    <xsl:template name="cmf-instype-formata">
        <xsl:param name="message"/>
        <xsl:text>INS_</xsl:text>
        <xsl:value-of select="$message"/>
    </xsl:template>

</xsl:stylesheet>

html.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
    exclude-result-prefixes="#all"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema";
    xmlns:fn="http://www.w3.org/2005/xpath-functions";>

    <xsl:template name="cmf-html">
        <xsl:param name="message"/>
        <html>
            <head>
                <title>Trade</title>
                <link rel="stylesheet" type="text/css" href="tradesheet.css"/>
            </head>

            <body>
                <xsl:call-template name="trade">
                    <xsl:with-param name="message" select="$message"/>
                </xsl:call-template>
                <xsl:call-template name="instrument">
                    <xsl:with-param name="message"
select="$message/instrument"/>
                </xsl:call-template>
            </body>
        </html>
    </xsl:template>

    <xsl:template name="trade">
        <xsl:param name="message"/>
        <div id="trade">
            <h2>Trade</h2>
            <xsl:call-template name="table">
                <xsl:with-param name="message" select="$message"/>
                <xsl:with-param name="entity">trade</xsl:with-param>
            </xsl:call-template>
        </div>
    </xsl:template>

    <xsl:template name="instrument">
        <xsl:param name="message"/>
        <div id="instrument">
            <h2>Instrument</h2>
            <xsl:call-template name="table">
                <xsl:with-param name="message">
                    <xsl:copy-of select="$message"/>
                </xsl:with-param>
                <xsl:with-param name="entity">instrument</xsl:with-param>
            </xsl:call-template>
        </div>
    </xsl:template>


    <xsl:template name="table">
        <xsl:param name="message"/>
        <xsl:param name="entity"/>
        <xsl:element name="table">
            <xsl:attribute name="summary">
                <xsl:text>Table shows list of fields for a </xsl:text>
                <xsl:value-of select="$entity"/>
            </xsl:attribute>
            <xsl:attribute name="border">1</xsl:attribute>
            <tr>
                <xsl:element name="th">
                    <xsl:attribute name="id">
                        <xsl:text>label</xsl:text>
                        <xsl:value-of select="$entity"/>
                    </xsl:attribute>
                    <xsl:text>label</xsl:text>
                </xsl:element>
                <xsl:element name="th">
                    <xsl:attribute name="id">
                        <xsl:text>value</xsl:text>
                        <xsl:value-of select="$entity"/>
                    </xsl:attribute>
                    <xsl:text>value</xsl:text>
                </xsl:element>
            </tr>
            <xsl:for-each select="$message/descendant::*">
                <tr>
                    <td>
                        <xsl:value-of select="name()"/>
                    </td>
                    <td>
                        <xsl:value-of select="text()"/>
                    </td>
                </tr>
            </xsl:for-each>
        </xsl:element>
    </xsl:template>

    <xsl:template match="text()" />

</xsl:stylesheet>