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How to handle soap fault in message set and WSDL? |
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jamesyu |
Posted: Wed Mar 14, 2007 11:46 am Post subject: How to handle soap fault in message set and WSDL? |
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Acolyte
Joined: 31 Jan 2007 Posts: 70
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Hi All,
1. In my message set, I've created 3 messages: request, response and error.
2. In my message category file, the request message is set with Role Type of "wsdl:input" and Role Usage of "soap:body". The response message is set with Role Type of "wsdl:output" and Role Usage of "soap:body". The error message is set with Role Type of "wsdl:fault" and Role Usage of "soap:fault"
3. Generated WSDL with soap over JMS with two-way operation
4. Imported WSDL to RAD, and a Web service client was generated successfully in RAD
5. Sent a valid request message via the Web service client in RAD, and a response message was retrieved from the flow successfully.
Here is how I handle invalid request messages in my flow. If the last name can't be found from the request message, I create an error message and send back to the caller instead of a positive response message. Notice that the "error" message has its own message structure which is different than the normal response message.
The thing is, such a reply message with error information can't be taken by the Web service client in RAD at all with the following Java exception occurred:
"org.xml.sax.SAXException: WSWS3047E: Error: Cannot deserialize element id of bean com.thc.broker.webservice.Lab_info."
Notice that, the element "id" is the first element defined in my error message structure. The "Lab_info" message is my actual request message.
In my case, I treated the error message exactly like a normal response message, just with different message structure and content.
Does that imply I can't have a separate message created to handle the errors in the message set?
how is the soap:fault/wsdl:fault being handled in the message category and WSDL in broker?
Thanks,
James |
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jamesyu |
Posted: Thu Mar 15, 2007 4:46 pm Post subject: |
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Acolyte
Joined: 31 Jan 2007 Posts: 70
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Looks like I can't have my own "error message" defined acting as a SOAP Fault since this won't be recognized by Web service client at all. Only the standard SOAP Fault message can be taken by Web service client generated in RAD. Below is a sample SOAP Fault message built in my flow that works fine with client:
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<soapenv:Fault>
<faultcode xmlns:ns1="http://webservice.broker.ibm.com/messaging">ns1:A01</faultcode>
<faultstring>a parameter missing</faultstring>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope> |
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