Modify SoapAction and Endpoint dynamically

Question

I am currently using ESB 10.1.3.4. I have set up a routing service and a routing rule to a soap service. I am invoking the routing service from an oracle database using the utl_http package. The routing service is invoked correctly, the message gets routed to the soap service and the soap service is successfully invoked. The issue I am running in to is that the soap service is being invoked anonymously and now I need to append information to the endpoint (pass parameter to the endpoint) to identify the sending node. I am looking for the best way to accomplish this requirement. I could manually edit the wsdl document prior to creating the soap service but this is not very flexible at all. It appears after reading the following document that I could use xpath:
http://www.oracle.com/technology/products/integration/esb/files/esb-presentation-headers.pdf
I have two basic questions:
1. If i wanted to select the existing endpoint location from the soap header how would I do that? I have not found a good description of the format and in the esb you can only see the payload. For instance on slide 20 of the link above it says you can select the location using the following xpath:
(‘/shdr:ESBHeader/shdr:location’)
If I cannot see the full message how would I have known to use that particular xpath?
2. If I use xpath can I just set the headers in the stylesheet like so:
<xsl:variable name="LocationIn" select="'http://localhost:7777/esb'" />
<xsl:variable name="LocationOut"
select="ehdr:setOutboundHeader('/shdr:ESBHeader/shdr:location',
$LocationIn, 'shdr=http://xmlns.oracle.com/esb;')"/>
Or do I also have to make sure I select the payload and insert it is as well? If I have to select the payload in the stylesheet is there a convenient variable to do so?
Thank you in advance,
Ryan L. Roy

Answer 1

I was able to make this work by using the following stylesheet:
<?xml version="1.0" encoding="UTF-8" ?>
<xsl:stylesheet version="1.0"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:plnk="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:ehdr="http://www.oracle.com/XSL/Transform/java/oracle.tip.esb.server.headers.ESBHeaderFunctions"
xmlns:ns0="http://www.w3.org/2001/XMLSchema"
xmlns:hwf="http://xmlns.oracle.com/bpel/workflow/xpath"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://oracle.com/esb/namespaces/Maximo_Inbound"
xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:wsp="http://schemas.xmlsoap.org/ws/2002/12/policy"
xmlns:ids="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
xmlns:ns1="chelanpud.org"
exclude-result-prefixes="xsl ns0 tns plnk wsdl soap wsp ns1 bpws ehdr hwf xp20 xref ora ids orcl">
<xsl:variable name="LocationIn"
select="'http://myPsServer:81/PSIGW/PeopleSoftServiceListeningConnector/FSCMDEV?From=ESB'"/>
<xsl:variable name="LocationOut"
select="ehdr:setOutboundHeader('/shdr:ESBHeader/shdr:location', $LocationIn, 'shdr=http://xmlns.oracle.com/esb;')"/>
<xsl:template match="node()|@*">
<xsl:copy><xsl:apply-templates select="node()|@*"/></xsl:copy>
</xsl:template>
</xsl:stylesheet>
I dynamically set the location header using the example found at the link below:
http://www.oracle.com/technology/products/integration/esb/files/esb-presentation-headers.pdf
I was then able to use the xsl:copy construct to send the original payload onto the destination web service. One thing of interest that I did do was remove the xmlns:inp1="" entry from the list as well as removing it from the exclude-result-prefixes list. It appeared that when it was there that namespace would be added to each element which was not the behavior that I desired.