XSLT dynamic Sum based on a parameter - xslt

Question

I am calling this XSL from Apache Camel and I set the header of the message to the parameter, but still I don't get the result.
I want an XSLT which gives me the sum based on a parameter the problem is that the parameter could be multiple values or one value
<EmpJob>
<EmpJob>
<userId>testID</userId>
<EmpPayCompRecurring>
<payComponent>1010</payComponent>
<endDate>2020-06-30T00:00:00.000</endDate>
<paycompvalue>3025.67</paycompvalue>
<userId>testID</userId>
<currencyCode>EUR</currencyCode>
<startDate>2020-06-01T00:00:00.000</startDate>
</EmpPayCompRecurring>
<EmpPayCompRecurring>
<payComponent>6097</payComponent>
<endDate>2019-12-31T00:00:00.000</endDate>
<paycompvalue>100.0</paycompvalue>
<userId>testID</userId>
<currencyCode>EUR</currencyCode>
<startDate>2018-12-06T00:00:00.000</startDate>
</EmpPayCompRecurring>
</EmpJob>
</EmpJob>
I created an XSLT transformation
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:param name = "custReturnDate" />
<xsl:template match="/EmpJob">
<xsl:variable name="apos">'</xsl:variable>
<xsl:variable name="payrecur">'1010','6097' </xsl:variable>
<mainroot>
<xsl:for-each select="EmpJob">
<root>
<__metadata>
<uri><xsl:value-of select="concat('EmpCompensation(seqNumber=1L,startDate=datetime',$apos ,$custReturnDate, $apos,',userId=',$apos,userId,$apos,')')"/></uri>
</__metadata>
<customDouble13><xsl:value-of select="sum(EmpPayCompRecurring[$payrecur]/paycompvalue) "/></customDouble13>
</root>
</xsl:for-each>
</mainroot>
</xsl:template>
</xsl:stylesheet>
"payrecur" should be the parameter later on according to this parameter I should sum node values.
P.S. I can change the parameter to anything because I am calling the template from code.

Answer 1

Given XSLT 2 or 3, I would declare the parameter as a sequence of strings or integers and then compare sum(EmpPayCompRecurring[payComponent = $payrecur]/paycompvalue).
So declare e.g <xsl:param name="payrecur" as="xs:string*" select="'1010','6097'"/>.
A minimal stylesheet would be
<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xsl:param name = "custReturnDate" />
<xsl:param name="payrecur" as="xs:string*" select="'1010','6097'"/>
<xsl:output indent="yes"/>
<xsl:template match="/EmpJob">
<xsl:variable name="apos">'</xsl:variable>
<mainroot>
<xsl:for-each select="EmpJob">
<root>
<__metadata>
<uri><xsl:value-of select="concat('EmpCompensation(seqNumber=1L,startDate=datetime',$apos ,$custReturnDate, $apos,',userId=',$apos,userId,$apos,')')"/></uri>
</__metadata>
<customDouble13>
<xsl:value-of select="sum(EmpPayCompRecurring[payComponent = $payrecur]/paycompvalue)"/>
</customDouble13>
</root>
</xsl:for-each>
</mainroot>
</xsl:template>
</xsl:stylesheet>
At https://xsltfiddle.liberty-development.net/bEzkTcM I get <customDouble13>3125.67</customDouble13>. You will probably want to add exclude-result-prefixes="#all" on the xsl:stylesheet element.

Answer 2

Hello everyone in case anyone faces this type of scenario as I mentiond before I added the parameter in the header so that the XSLT template will get it. Unfortunatly the template received it as a String so I had to use the function tokenize() to convert the parameter to array then I could use the template provided by Martin Honnen.
This scenario will work Apache Camel as well as SAP CPI
Best Regards
Ibrahim