Unable to copy and modify attribute in XSLT when using a namespace

Question

I\'m trying to transform an XML document and modify the attributes of single element but the transform is not getting applied if the root element has a namespace attribute. Simp

Answer 1

The element you're trying to match is in a namespace (the default namespace), so you need to properly use namespaces in your XSLT:

<xsl:stylesheet version="1.0" 
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:bi="http://www.oracle.com/biee/bi-domain">
                  <!--   ^----- here   -->
  <xsl:output method="xml" version="1.0" standalone="yes" />

  <!-- Copying everything -->
  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()" />
    </xsl:copy>
  </xsl:template>  

  <!-- Add the new attributes -->
                <!--   v------- and here   -->
  <xsl:template match="bi:SecurityOptions">
    <xsl:copy>
      <xsl:attribute name="ssoProviderLogoffURL"/>
      <xsl:attribute name="ssoProviderLogonURL"/>
      <xsl:attribute name="sslVerifyPeers">
        <xsl:value-of select="'false'" />
      </xsl:attribute>           
      <xsl:apply-templates  select="node() | @*"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>

Answer 2

xmlns works such that all nodes inherit the xmlns attribute(s) from their parent. What that means is, unless otherwise specified, when your document root contains xmlns="http://www.oracle.com/biee/bi-domain" it applies that namespace to all of the sub tree.

So you're actually looking for a SecurityOptions tag with a namespace of "http://www.oracle.com/biee/bi-domain".

This means that your XSLT will actually need to have something like this:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:tmp="http://www.oracle.com/biee/bi-domain">

at the top and the template match would look like this:

<xsl:template match="tmp:SecurityOptions">

Note the tmp: matches the xmlns:tmp; this is called a namespace prefix and allows xml to match the small string of tmp to the large string of "http://www.oracle.com/biee/bi-domain".