R/3- PI- webservice. Pass userid/password for Username Token from R/3

Question

Hello,
We (SAP R/3) need to call Webservices from third party for which we are using SAP-PI system as the Middleware.
The Password and ID for USERNAME TOKEN to be passed in the SOAP Header request needs to be sent through RFC in SAP R/3.
The requirement is that SAP-PI should use this ID/password and prepare the USername Token in the SOAP Request header for the Webservice Call.
Note: PI has AXIS framework installed on it.
Can you please suggest as to what should be done? Request you to please provide the Custom Code / Detailed configuration etc. that is required to be done at the PI end.
Note: I have searched the Forum but couldn't find anything a detailed information.
Thanks & Regards,
Abhishek Jolly

Answer 1

XSLT-Mapping looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/">
   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:wsh="http://something/wsh">
     <soapenv:Header>
       <wsh:Context>
       <SessionId>
         <xsl:value-of select="/*[local-name()
=MySoapFunction]/Parameters/Parameters
[Scope[text()='XI'] and Name[text()='SessionID']]/Value"/>
      </SessionId>
     </wsh:Context>
    </soapenv:Header>
    <soapenv:Body>
     <wsh:MySoapFunction>
      <xsl:if test="count(./*[local-name()=MySoapFunction]/Parameters/Parameters)>1">
       <Parameters>
         <xsl:for-each select="./*[local-name()=MySoapFunction]/Parameters/Parameters">
           <xsl:if test="Scope!='XI'">
             <Parameters>
               <Scope><xsl:value-of select="Scope"/></Scope>
               <Name><xsl:value-of select="Name"/></Name>
               <Value><xsl:value-of select="Value"/></Value>
              </Parameters>
             </xsl:if>
           </xsl:for-each>
          </Parameters>
         </xsl:if>
       </wsh:MySoapFunction>
      </soapenv:Body>
</soapenv:Envelope>
I save XSLT to file.
Input message that creates in XI and live only in BPM:
<?xml version="1.0" encoding="UTF-8"?>
<ns0:MySoapFunction xmlns:ns0="http://something/wsh">
    <Parameters>
        <Parameters>
            <Scope>XI</Scope>
            <Name>SessionID</Name>
            <Value>0123456789</Value>
            </Parameters>
        <Parameters>
            <Scope>otherScope</Scope>
            <Name>someParam</Name>
            <Value>someValue</Value>
         </Parameters>
    </Parameters>
</ns0:MySoapFunction>
In BPM's SendStep this message is used.
2) Create ZIP archive with this XSLT file (one archive can contains many XSLT programs). And Import ZIP it into XI. You can see this in Imported Archive and list of filenames of Archived Program in XI.