Parsing XML from a CDATA Structure

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Subject: Parsing XML from a CDATA Structure
From: Olson Family <olsonfam@xxxxxxxxxxxxx>
Date: Wed, 03 Aug 2005 20:23:03 -0400

Using Saxon 8,  I am attempting to parse an XML string from within a CDATA
Structure.

Using the saxon:parse extension I have been able to do this, except when the
xml string includes the following tag at the beginning of the string.

<?xml version="1.0" encoding="UTF-8"?>

I am getting the following error

  net.sf.saxon.xpath.DynamicError: org.xml.sax.SAXParseException: The
processing instruction
  target matching "[xX][mM][lL]" is not allowed.
Transformation failed: Run-time errors were reported

The sample xsl file will succesfully parse the xml file if I remove the
string from the cdata structure.

I don't control the structure of the XML, so I do not have the ability to
somehow strip out the ?xml string.

Is there any way to have Saxon ignore this string.



===============file.xsl===========================

>     <?xml version="1.0" encoding="ISO-8859-1" ?>
>     <xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:saxon="http://saxon.sf.net/">
>     <xsl:output method="text" indent="no"/>
>     <xsl:template match="/">
>                     <xsl:apply-templates
select="busmessage/body/field[@name='^data^']"/>
>     </xsl:template>
>
>             <xsl:template match="busmessage/body/field[@name='^data^']">
>
>                     <ID>
>                             <xsl:variable name="dynamic"
select="saxon:parse(field[@name='body'])"/>
>                             <xsl:value-of
select="$dynamic/usiTradeEvent/tradeId"/>
>                     </ID>
>             </xsl:template>
>     </xsl:stylesheet>

===============file.xml (with <?xml version="1.0" encoding="UTF-8"?>) string
=================

>     <?xml version="1.0"?>
>     <busmessage>
>     <header>
>     <sendSubject>TEST.MESSAGE</sendSubject>
>     <replySubject></replySubject>
>     <sender seq="2687" timeLimit="0.0">AuroraPub</sender>
>     </header>
>     <body>
>     <field name="^pfmt^" busType="16" javaType="java.lang.Short" id="0">
>     10</field>
>     <field name="^ver^" busType="16" javaType="java.lang.Short" id="0">
>     30</field>
>     <field name="^type^" busType="16" javaType="java.lang.Short" id="0">
>     1</field>
>     <field name="^encoding^" busType="16" javaType="java.lang.Short"
id="0">
>     1</field>
>     <field name="^prefixList^" busType="1"
javaType="com.tibco.tibrv.TibrvMsg" id="0">
>     <field name="default" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[/tibco/public/class/DEFI/FI/Upstreaminterfaces/CF]]>
>     </field>
>     </field>
>     <field name="^tracking^" busType="1"
javaType="com.tibco.tibrv.TibrvMsg" id="0">
>     <field name="^id^" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[1LE--A--EixxCk6Q-0q6eX6Bs-ItI]]>
>     </field>
>     <field name="^1^" busType="8" javaType="java.lang.String" id="1">
>
<![CDATA[BW.Aurora-Aurora.Process/DEFI/FI/Upstreaminterfaces/Aurora.process.
Job-18148]]>
>     </field>
>     </field>
>     <field name="^data^" busType="1" javaType="com.tibco.tibrv.TibrvMsg"
id="0">
>     <field name="^class^" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[CFMsg]]>
>     </field>
>     <field name="body" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[<?xml version="1.0" encoding="UTF-8"?>
>     <usiTradeEvent>
>         <eventType>New</eventType>
>         <tradeType>Buy</tradeType>
>         <tradeScheme>MUSTANG</tradeScheme>
>         <tradeId>RICHO-00123456</tradeId>
>         <tradeVersion>0</tradeVersion>
>         <portfolioId>MPT1</portfolioId>
>         <partyScheme>CIF</partyScheme>
>         <partyType>COUNTERPARTY</partyType>
>         <partyId>MX-5</partyId>
>         <traderScheme>MUSTANG</traderScheme>
>         <traderId>RGrandur</traderId>
>         <marginAmount>0.000000</marginAmount>
>         <marginBpMultiplier>1</marginBpMultiplier>
>         <tradeDate>2005-08-02</tradeDate>
>         <inputTimeStamp>2005-08-02</inputTimeStamp>
>         <comment>TW</comment>
>         <bond>
>             <securityScheme>CUSIP</securityScheme>
>             <securityId>VRR562</securityId>
>             <nominalAmount>38.00</nominalAmount>
>             <priceType>PRICE</priceType>
>             <price>98.9921875000</price>
>             <settlementDate>2005-08-03</settlementDate>
>         </bond>
>     </usiTradeEvent>]]>
>     </field>
>     </field>
>     </body>
>     </busmessage>

================= output ==============================
  net.sf.saxon.xpath.DynamicError: org.xml.sax.SAXParseException: The
processing instruction
  target matching "[xX][mM][lL]" is not allowed.
Transformation failed: Run-time errors were reported

===============file1.xml (without <?xml version="1.0" encoding="UTF-8"?>)
string =================
>     <?xml version="1.0"?>
>     <busmessage>
>     <header>
>     <sendSubject>TEST.MESSAGE</sendSubject>
>     <replySubject></replySubject>
>     <sender seq="2687" timeLimit="0.0">AuroraPub</sender>
>     </header>
>     <body>
>     <field name="^pfmt^" busType="16" javaType="java.lang.Short" id="0">
>     10</field>
>     <field name="^ver^" busType="16" javaType="java.lang.Short" id="0">
>     30</field>
>     <field name="^type^" busType="16" javaType="java.lang.Short" id="0">
>     1</field>
>     <field name="^encoding^" busType="16" javaType="java.lang.Short"
id="0">
>     1</field>
>     <field name="^prefixList^" busType="1"
javaType="com.tibco.tibrv.TibrvMsg" id="0">
>     <field name="default" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[/tibco/public/class/DEFI/FI/Upstreaminterfaces/CF]]>
>     </field>
>     </field>
>     <field name="^tracking^" busType="1"
javaType="com.tibco.tibrv.TibrvMsg" id="0">
>     <field name="^id^" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[1LE--A--EixxCk6Q-0q6eX6Bs-ItI]]>
>     </field>
>     <field name="^1^" busType="8" javaType="java.lang.String" id="1">
>
<![CDATA[BW.Aurora-Aurora.Process/DEFI/FI/Upstreaminterfaces/Aurora.process.
Job-18148]]>
>     </field>
>     </field>
>     <field name="^data^" busType="1" javaType="com.tibco.tibrv.TibrvMsg"
id="0">
>     <field name="^class^" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[CFMsg]]>
>     </field>
>     <field name="body" busType="8" javaType="java.lang.String" id="0">
>     <![CDATA[<usiTradeEvent>
>         <eventType>New</eventType>
>         <tradeType>Buy</tradeType>
>         <tradeScheme>MUSTANG</tradeScheme>
>         <tradeId>RICHO-00123456</tradeId>
>         <tradeVersion>0</tradeVersion>
>         <portfolioId>MPT1</portfolioId>
>         <partyScheme>CIF</partyScheme>
>         <partyType>COUNTERPARTY</partyType>
>         <partyId>MX-5</partyId>
>         <traderScheme>MUSTANG</traderScheme>
>         <traderId>RGrandur</traderId>
>         <marginAmount>0.000000</marginAmount>
>         <marginBpMultiplier>1</marginBpMultiplier>
>         <tradeDate>2005-08-02</tradeDate>
>         <inputTimeStamp>2005-08-02</inputTimeStamp>
>         <comment>TW</comment>
>         <bond>
>             <securityScheme>CUSIP</securityScheme>
>             <securityId>VRR562</securityId>
>             <nominalAmount>38.00</nominalAmount>
>             <priceType>PRICE</priceType>
>             <price>98.9921875000</price>
>             <settlementDate>2005-08-03</settlementDate>
>         </bond>
>     </usiTradeEvent>]]>
>     </field>
>     </field>
>     </body>
>     </busmessage>

================= output ==============================
RICHO-00123456

Current Thread
Parsing XML from a CDATA Structure Olson Family - 4 Aug 2005 00:21:34 -0000 <= David Carlisle - 4 Aug 2005 08:49:10 -0000

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