getting Namespace uri

rock3111 · June 30th, 2012, 02:15 PM

Hi,
I am using xsl 1.0. I need to get the namespace uri from prefix.

here is my xml,

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:a1="http://abc.com/arthemetic/integers/a1">
<soapenv:Header>
</soapenv:Header>
<soapenv:Body>
<a1:add>
</a1:add>
</soapenv:Body>
</soapenv:Envelope>

i want to get the namespace uri for prefix a11 is http://abc.com/arthemetic/integers/v1

Here is the code that i am trying out,

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
>

<xsl:template match="/">
<xsl:variable name="operationName">
<xsl:value-of
select="name(/*[local-name()='Envelope']/*[local-name()='Body']/*[1])"></xsl:value-of>
</xsl:variable>
<xsl:variable name="prefix">
<xsl:value-of select="substring-before($operationName, ':')"></xsl:value-of>
</xsl:variable>
<xsl:variable name="ns-node"
select="namespace::node()[.= $prefix]" />
dfadsfdfadsf
<xsl:value-of select="$ns-node" />
</xsl:template>
</xsl:stylesheet>

But i am not receiving the namespace. Am i missing anything over here.

samjudson · June 30th, 2012, 02:56 PM

namespace-uri() is the function which returns the namespace for a particular node. Not sure what you are trying to do with it but there you go.

rock3111 · June 30th, 2012, 06:32 PM

In one of my requirement, i need to get the namespace uri of the operation in the soap request.

the idea is we need to get the first element namespace uri that comes immediately after soap:body. In the below example add method comes after soap:body, so i need to know the name space uri for that prefix.

mhkay · June 30th, 2012, 07:58 PM

First, please avoid the habit of writing

Code:

<xsl:variable name="operationName">
<xsl:value-of select="X"/>
</xsl:variable>

when you could write

Code:

<xsl:variable name="operationName" select="X"/>

which is shorter, more readable, and far more efficient (because it avoids the need to construct a tree). I don't know why the former form is encountered so often - it's a very common but really bad mistake.

Secondly, instead of

Code:

namespace::node()[.= $prefix]

you want

Code:

namespace::node()[name() = $prefix]

A namespace node represents a prefix, uri pair, with the prefix being the name of the node and the uri being its string value.

rock3111 · June 30th, 2012, 08:35 PM

Thanks for your comments Kay.
I have tried with your comments, but still i am seeing the result.

Here is my request xml

Code:

   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
	xmlns:v11="http://abc.com/arthemetic/integers/v1">
	<soapenv:Header>
	</soapenv:Header>
	<soapenv:Body>
		<v11:add>
		</v11:add>
	</soapenv:Body>
</soapenv:Envelope>

Code:


<xsl:stylesheet version="1.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">


	<xsl:template match="/">

		<xsl:variable name="operationName"
			select="name(/*[local-name()='Envelope']/*[local-name()='Body']/*[1])" />


		<xsl:variable name="prefix"
			select="substring-before($operationName, ':')" />

		sdfdadssdf
		<xsl:value-of select="namespace::node()[name() = $prefix]" />
	</xsl:template>
</xsl:stylesheet>

rock3111 · June 30th, 2012, 09:07 PM

there is typo, I am not able to get the namespace uri for v11 prefix

samjudson · July 1st, 2012, 04:57 AM

The following gives you the namespace for the first child of the Body element. It is much simpler than what you appear to be trying above.

<xsl:value-of select="namespace-uri(/soapenv:Envelope/soapenv:Body/*[1])"/>