OSB and WSDL response message

Question

Hi all,
from the WSDL, that I put at bottom of this post, I've created a new OSB project importing the WSDL itself and creating a proxy service based on it.
I've implemented it using the fn-bea:execute-sql function:
<ctx:route><ctx:service>{   
fn-bea:execute-sql (
$myDataSource,
'resultset',
'SELECT id, name, type_id, domi_country_id, open_date, close_date FROM myTable WHERE id=?',
xs:string($body/urn:clientDataLookup/portfolioNumber/text())
}</ctx:service></ctx:route>
For getting the response, in the pipeline reponse I added a REPLACE action:
Replace [ node contents ] of [ . ]
in [ body ] with
[ <urn:clientDataLookupResponse>
<xmlCntent>{ $result/con:service/resultset }</xmlCntent>
</urn:clientDataLookupResponse>
I deduced the above xml response message using the OSB xquery wizard navigating through variable structure section and selecting $body - clientDataLookup (response) variable:
$body/urn:clientDataLookupResponse/xmlCntent
from that xpath expression I deduced the above xml response message.
My question: is that approach correct ? Why should I rewrite the xml response message ?
I'm wondering how to allow OSB to generate the correct xml response message in automatic way and then use it as template and fill only the xmlCntent param.
Thanks in advance
ferp
<definitions name="ClientDataLookup"
targetNamespace="http://wsdl/ClientDataLookup.wsdl"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://wsdl/ClientDataLookup.wsdl"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<message name="ClientDataRequest">
<part name="buId" type="xsd:string"/>
<part name="portfolioNumber" type="xsd:string"/>
</message>
<message name="ClientDataResponse">
<part name="xmlCntent" type="xsd:string"/>
</message>
<portType name="ClientData_PortType">
<operation name="clientDataLookup">
<input message="tns:ClientDataRequest"/>
<output message="tns:ClientDataResponse"/>
</operation>
</portType>
<binding name="ClientData_Binding" type="tns:ClientData_PortType">
<soap:binding style="rpc"
transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="clientDataLookup">
<soap:operation soapAction="clientDataLookup"/>
<input>
<soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:bsource:dataservice"
use="encoded"/>
</input>
<output>
<soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:bsource:clientdataservice"
use="encoded"/>
</output>
</operation>
</binding>
<service name="ClientDataService">
<documentation>WSDL File for Client Data Lookup</documentation>
<port binding="tns:ClientData_Binding" name="ClientData_Port">
<soap:address
location="http://localhost:8080/soap/servlet/rpcrouter"/>
</port>
</service>
</definitions>

Answer 1

In most common use cases a service bus transforms the messages from one format to other. In your case you are actually doing the same. You are transforming the message from database structure to the structure which is defined by the WSDL. The snippet you are using is not XML, its an XQuery snippet. There is nothing unusual about it. The tree structure in the left side is given for that purpose only, to facilitate writing XPaths and XQuery snippets. If you do not want to type anything and want to get it graphically (or example when its a big XML), use Eclipse IDE of OSB and create a XQuery transformation which you can call from OSB message flow.
Edited by: AbhishekJ on Nov 11, 2011 12:57 AM