Xslt : Create a namespace dynamically

Question

Following are the nodes in XML Data

<WebServiceUrl>"http://webser.part.site"</WebServiceUrl>
<UserName>nida</UserName>
<Passsword>123</Password>

I have passed this node value to Xslt Service now i have this url NODE value in parameter e-g

    <xsl:param name="UserName"/>
    <xsl:param name="Password"/>
    <xsl:param name="WebServiceUrl"/>

Now i want to create a soapenv:Envelope tag and use this value in it

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="$WebServiceUrl">

So the final outPut which i want from XSLT Code is as :

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"     xmlns:web="http://webservice2.partner.insite">
<soapenv:Header/>
<soapenv:Body>
<web:upload>
<web:username>nida</web:username>
<web:password>123</web:password>
</web:upload></soapenv:Body></soapenv:Envelope>

Thanks alot for your help .

This is your code :

 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 <xsl:output method="xml" encoding="UTF-8" omit-xml-declaration="yes"/>
 <xsl:param name="UserName"/>
 <xsl:param name="Password"/>
  <xsl:param name="WebServiceUrl" select="'some: namespace'"/>
<xsl:template match="/">    
SOAPAction: "urn:upload"
Content-Type: text/xml;charset=UTF-8
 <xsl:text>
 </xsl:text>
  <xsl:element name="{name()}"
      namespace="http://schemas.xmlsoap.org/soap/envelope/">
  <xsl:sequence select="namespace::*[not(name()='web')]"/>
  <xsl:namespace name="web" select="$WebServiceUrl"/>
 </xsl:element>
 <xsl:text>
   </xsl:text>
<soapenv:Header/>
   <xsl:text>
   </xsl:text>
<soapenv:Body>
   <xsl:text>
   </xsl:text>
    <web:upload>
   <xsl:text>
   </xsl:text>      
        <web:username><xsl:value-of select="$UserName"/>                </web:username>
    <xsl:text>
   </xsl:text>
                <web:password><xsl:value-of select="$Password"/>           </web:password>
    <xsl:text>
   </xsl:text>
  </soapenv:Envelope>
</xsl:template>
    </xsl:stylesheet>

When i try to save this code it thorws an error as starting tag of this node is missing

</soapenv:Envelope>

Please make changes in this what i am doing wrong in this.

How would the new namespace be generated if there is no string ""webservice2" contained in the parameter $WebServiceUrl? This isn't logical. — Dimitre Novatchev
– Dimitre Novatchev, Commented Aug 3, 2012 at 18:31
My main concern is to pick the Url Value from parameter we have option to make WeserviceUrl value like any one of these: <WebServiceUrl>"webser.part.site"</WebServiceUrl> OR <WebServiceUrl>web="webservice2.partner.insite" </WebServiceUrl> OR <WebServiceUrl>xmlns:web="webservice2.partner.insite" </WebServiceUrl> But At the end what i need is this : <soapenv:Envelope xmlns:soapenv="schemas.xmlsoap.org/soap/envelope" xmlns:web="webservice2.partner.insite"> — Azeem
– Azeem, Commented Aug 3, 2012 at 18:46
So, what is the problem with my solution? It does exactly that -- creates a namespace dynamically from the namespace-uri provided in a global parameter. — Dimitre Novatchev
– Dimitre Novatchev, Commented Aug 3, 2012 at 18:51

Dimitre Novatchev · Accepted Answer · 2012-08-03 13:14:25Z

3

I. This XSLT 2.0 transformation:

<xsl:stylesheet version="2.0"   xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output omit-xml-declaration="yes" indent="yes"/>
    <xsl:param name="pUrl" select="'some: namespace'"/>

 <xsl:template match="/*">
     <xsl:element name="{name()}"
          namespace="http://schemas.xmlsoap.org/soap/envelope/">
      <xsl:sequence select="namespace::*[not(name()='web')]"/>
      <xsl:namespace name="web" select="$pUrl"/>
     </xsl:element>
 </xsl:template>
</xsl:stylesheet>

when applied on the provided XML document:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:web="http://webser.part.site"/>

produces the wanted, correct result (the 'web' namespace produced from the value of a parameter):

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:web="some: namespace"/>

II. This XSLT 1.0 transformation:

<xsl:stylesheet version="1.0"   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:ext="http://exslt.org/common" exclude-result-prefixes="ext">
    <xsl:output omit-xml-declaration="yes" indent="yes"/>
    <xsl:param name="pUrl" select="'some: namespace'"/>

    <xsl:variable name="vrtfDummy">
     <xsl:element name="web:dummy" namespace="{$pUrl}"/>
    </xsl:variable>

    <xsl:variable name="vNS" select="ext:node-set($vrtfDummy)/*/namespace::web"/>

 <xsl:template match="/*">
     <xsl:element name="{name()}"
          namespace="http://schemas.xmlsoap.org/soap/envelope/">
      <xsl:copy-of select="namespace::*[not(name()='web')]"/>
      <xsl:copy-of select="$vNS"/>
     </xsl:element>
 </xsl:template>
</xsl:stylesheet>

when applied on the same XML document (above), again produces the wanted, correct result:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="some: namespace"/>

edited Aug 3, 2012 at 13:14

answered Aug 3, 2012 at 13:05

Dimitre Novatchev

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5 Comments

Michael Kay Over a year ago

Note also that if you need to generate elements in the dynamically-selected "web" namespaces within the SOAP message body, you will need to do this using xsl:element with a namespace attribute. You can't just rely on using the prefix "web" and having its binding inherited from a parent element: XSLT needs to know the namespace of an element it is creating explicitly.

Dimitre Novatchev Over a year ago

@MichaelKay, Yes, the provided XML document has just a top element and nothing else... Or do I understand you at all?

Azeem Over a year ago

@DimitreNovatchev , soory i could not convery my message clearly , I have following node <WebServiceUrl>webser.part.site</WebServiceUrl> I just want to append the WebServiceUrl value in the Following Node using XSLT <soapenv:Envelope xmlns:soapenv="schemas.xmlsoap.org/soap/envelope" xmlns:web= <xsl:value-of select="$WebServiceUrl"/>>

Dimitre Novatchev Over a year ago

@NidaSulheri: Sorry, but I don't understand your last comment. Please, edit the question and specify the exact wanted result (as XML).

Azeem Over a year ago

@DimitreNovatchev I have updated my question , please help me out and tell me if further clarification is required.

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