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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Ways to simplify XSL, complex "select/filter criteria"
 first my environment: Saxon 8.9, XSL and Xpath 2.0, Java I have to transform a XML document which contains elements with the same name but different xs:type. In addition the elements contain an optional validFor element which defines a time period for the validity of the data. The rules to implement is: - select element by xsi type - select the valid (in time period) element - if no time period specified and multiple elements of the same type exist, take the first one I have to apply these rules in almost every value-of selection in my XSLT and therefore the XSLT became really a nightmare. I hope there is a solution to simplify this. I though about xsl:function, dynamic Xpath (saxon:evaluate,..) but couldn't get it to work. Any help more than appreciated! Thanks Stefan simplified XML and XSL: <ns:Individual xsi:type="ns:Individual" xmlns:ns="http://myns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <ns:validFor xsi:type="ns:TimePeriod"> <ns:startDateTime>1800-01-01T00:00:00</ns:startDateTime> <ns:endDateTime/> </ns:validFor> <ns:PartyPlays xsi:type="ns:Employee">
<ns:validFor xsi:type="ns:TimePeriod">
<ns:startDateTime>2005-09-19T00:00:00</ns:startDateTime>
<ns:endDateTime/>
</ns:validFor>
<ns:PartyRoleContactableVia xsi:type="ns:PostalContact">
...
</ns:PartyRoleContactableVia>
<ns:PartyRoleContactableVia xsi:type="ns:PostalContact">
...
</ns:PartyRoleContactableVia>
<ns:PartyRoleContactableVia xsi:type="ns:EMailContact">
<ns:validFor xsi:type="ns:TimePeriod">
<ns:endDateTime>2010-09-19T00:00:00</ns:endDateTime>
</ns:validFor>
<ns:eMailAddress>email1@xxxxxx</ns:eMailAddress>
</ns:PartyRoleContactableVia>
<ns:PartyRoleContactableVia xsi:type="ns:EMailContact">
<ns:validFor xsi:type="ns:TimePeriod">
<ns:endDateTime>2010-09-19T00:00:00</ns:endDateTime>
</ns:validFor>
<ns:eMailAddress>email2@xxxxxx</ns:eMailAddress>
</ns:PartyRoleContactableVia>
</ns:PartyPlays>
</ns:Individual><?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:cdm="http://myns" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <xsl:output method="text"/> <xsl:template match="/"> <xsl:value-of select="/cdm:Individual/cdm:PartyPlays[contains(@xsi:type,'Employee')][ if(string-length(cdm:validFor/cdm:startDateTime) gt 0 and string-length(cdm:validFor/cdm:endDateTime) gt 0) then (xs:dateTime(cdm:validFor/cdm:startDateTime) lt current-dateTime() and xs:dateTime(cdm:validFor/cdm:endDateTime)gt current-dateTime()) else if(string-length(cdm:validFor/cdm:startDateTime) gt 0) then (xs:dateTime(cdm:validFor/cdm:startDateTime) lt current-dateTime()) else if(string-length(cdm:validFor/cdm:endDateTime) gt 0) then ( xs:dateTime(cdm:validFor/cdm:endDateTime)gt current-dateTime()) else 1 ]/cdm:PartyRoleContactableVia[contains(@xsi:type,'EMailContact')][ if(string-length(cdm:validFor/cdm:startDateTime) gt 0 and string-length(cdm:validFor/cdm:endDateTime) gt 0) then (xs:dateTime(cdm:validFor/cdm:startDateTime) lt current-dateTime() and xs:dateTime(cdm:validFor/cdm:endDateTime)gt current-dateTime()) else if(string-length(cdm:validFor/cdm:startDateTime) gt 0) then (xs:dateTime(cdm:validFor/cdm:startDateTime) lt current-dateTime()) else if(string-length(cdm:validFor/cdm:endDateTime) gt 0) then ( xs:dateTime(cdm:validFor/cdm:endDateTime)gt current-dateTime()) else 1 ][1]/cdm:eMailAddress[1]"/> </xsl:template> </xsl:stylesheet> 
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