How to use standard java functions in a XSLT mapping

Question

Hi All,
I wish to use a standard java function in a XSLT mapping, The issue is either i am giving incorrect namespace which is used to invoke the function or the signature of the function call is incorrect, I have read all the links in http://help.sap.com, and i know <b> one can enhance a XSLT mapping by writing one's own java code and thereby using java standard functions </b>, but the requirement is such that i need to try and use java standard function in XSLT mapping itself.
Please refer to the sample code below:
<?xml version="1.0" encoding="UTF-8"?>
  <xsl:stylesheet version="1.0"  
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:javamap="java:java.lang.String">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:variable name="input" select="Title">
<xsl:if test="function-available('javamap:toUpperCase')">
<xsl:value-of select="javamap:toUpperCase($input)"/>
</xsl:if>
Author:<xsl:value-of select="Author"/>
</xsl:template>
</xsl:stylesheet>
error encountered is: Illegal number or type of arguments.
please reply if you have tried a similar scenario in SAP XI.
Thanks & Regards,
Varun

Answer 1

Hi Varun,
    First of all i want to tell you that as per the documentation you can only call the static function inside xslt mapping. Your toUpperCase method is a non static function.
What i am getting is that you have an element called Author and you want to convert its value into uppercase.
you can write your own user defined function which is static.
Signature of your java method :
public static string toUpperCase(String Author,Map inputparam)
try this xslt map.
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:javamap="java:JavaProgram">
     <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
     <xsl:param name="Author">
             <xsl:value-of select="//Author_name"/>
     </xsl:param>
     <xsl:param name="inputparam" />
     <xsl:template match="/">
     <Author>
             <xsl:if test="function-available('javamap:toUpperCase')">
              <xsl:value-of select="javamap:toUpperCase($Author,$inputparam)"/>
             </xsl:if>
     </Author>
     </xsl:template>
</xsl:stylesheet>
Hope this will work.
Thanks and Regards
Vishal Kumar