XSLT Convert attribute to element and copy value from an other elemen - xslt

Question

I have XML data like this
<ABC version="1.0">
<XYZ>
<ROWSET ROWS="00001">
<ROWDEF>
<COLUMN ID="ACCT_ID" LEN="016" NULL="Y"/>
<COLUMN ID="AGNT_ID" LEN="004" NULL="Y"/>
<COLUMN ID="CUST_EXTR_ID" LEN="024" NULL="Y"/>
<COLUMN ID="PI_ID" LEN="019" NULL="Y"/>
<COLUMN ID="PRIN_ID" LEN="004" NULL="Y"/>
<COLUMN ID="SYS_ID" LEN="004" NULL="Y"/>
</ROWDEF>
<ROW>
<C>6369921501000060</C>
<C>0000</C>
<C>C13093102141063422034238</C>
<C>6369921501000060 </C>
<C>1500</C>
<C>9008</C>
</ROW>
<ROW>
<C>6369921501000061</C>
<C>0001</C>
<C>C13093102141063422034231</C>
<C>6369921501000060 </C>
<C>1501</C>
<C>9001</C>
</ROW>
</ROWSET>
</XYZ>
</ABC>
And I'm trying to convert this into
<?xml version="1.0" encoding="utf-8"?>
<ABC version="1.0">
<XYZ RC="0067">
<ROWSET ROWS="00001">
<ROWDEF>
<ACCT_ID>6369921501000060</ACCT_ID>
<AGNT_ID>0000</AGNT_ID>
<CUST_EXTR_ID>C13093102141063422034238</CUST_EXTR_ID>
<PI_ID>6369921501000060</PI_ID>
<PRIN_ID>1500</PRIN_ID>
<SYS_ID>9008</SYS_ID>
</ROWDEF>
<ROWDEF>
<ACCT_ID>6369921501000061</ACCT_ID>
<AGNT_ID>0001</AGNT_ID>
<CUST_EXTR_ID>C13093102141063422034231</CUST_EXTR_ID>
<PI_ID>6369921501000060</PI_ID>
<PRIN_ID>1501</PRIN_ID>
<SYS_ID>9001</SYS_ID>
</ROWDEF>
</ROWSET>
</XYZ>
</ABC>
I have looked around and tried few things but it is not working.
Can someone help me with this.
Below is my XSLT. Thanks in advance.
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:template match="#* | node()">
<xsl:copy>
<xsl:apply-templates select="#* | node()" />
</xsl:copy>
</xsl:template>
<xsl:template match="COLUMN">
<xsl:element name="{#ID}">
<xsl:copy>
<xsl:apply-templates select="node()"></xsl:apply-templates>
</xsl:copy>
<xsl:apply-templates />
<!--<xsl:call-template name="value"></xsl:call-template>-->
</xsl:element>
</xsl:template>
<!--
<xsl:template match="ROW" name="value">
<xsl:copy>
<xsl:apply-templates select="node()"></xsl:apply-templates>
</xsl:copy>
</xsl:template>
-->
</xsl:stylesheet>

Answer 1

This stylesheet will mostly do what you want, but I cannot fathom how to generate the attribute for <XYZ RC="0067">.
For each ROWSET it comes across it saves the ROWDEF element in a variable, copies all attribute nodes, and then processes each ROW element. The position of each C element in the ROW is caclulated, and the COLUMN in the corresponding position within the stored ROWDEF element is used to fetch an element name from the ID attribute.
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="#* | node()">
<xsl:copy>
<xsl:apply-templates select="#* | node()" />
</xsl:copy>
</xsl:template>
<xsl:template match="ROWSET">
<xsl:variable name="columns" select="ROWDEF/COLUMN"/>
<xsl:copy>
<xsl:apply-templates select="#*" />
<xsl:for-each select="ROW">
<ROWDEF>
<xsl:for-each select="C">
<xsl:variable name="pos" select="position()"/>
<xsl:element name="{$columns[$pos]/#ID}">
<xsl:value-of select="."/>
</xsl:element>
</xsl:for-each>
</ROWDEF>
</xsl:for-each>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
output
<?xml version="1.0" encoding="utf-8"?>
<ABC version="1.0">
<XYZ>
<ROWSET ROWS="00001">
<ROWDEF>
<ACCT_ID>6369921501000060</ACCT_ID>
<AGNT_ID>0000</AGNT_ID>
<CUST_EXTR_ID>C13093102141063422034238</CUST_EXTR_ID>
<PI_ID>6369921501000060 </PI_ID>
<PRIN_ID>1500</PRIN_ID>
<SYS_ID>9008</SYS_ID>
</ROWDEF>
<ROWDEF>
<ACCT_ID>6369921501000061</ACCT_ID>
<AGNT_ID>0001</AGNT_ID>
<CUST_EXTR_ID>C13093102141063422034231</CUST_EXTR_ID>
<PI_ID>6369921501000060 </PI_ID>
<PRIN_ID>1501</PRIN_ID>
<SYS_ID>9001</SYS_ID>
</ROWDEF>
</ROWSET>
</XYZ>
</ABC>