How to send wso2 esb error message or exception to my client

问题

I provoke an error in wso2ESB in order to have control in the client of some errors, while the esb console displays:

ERROR {org.wso2.carbon.identity.entitlement.mediator.EntitlementMediator} -  Error occurred while evaluating the policy {org.wso2.carbon.identity.entitlement.mediator.EntitlementMediator}
org.apache.axis2.AxisFault: Access Denied. Authentication failed - Invalid credentials provided.
...
...

the client console displays:

org.apache.axiom.soap.SOAPProcessingException: Transport level information does not match with SOAP Message namespace URI

I'm seeing different errors in consoles, I need to take the esb error message so that the client code can catch the same error esb

At this moment i have my sequence 'fault' configured like this:

<sequence xmlns="http://ws.apache.org/ns/synapse" name="fault" trace="enable">
   <makefault version="soap12">
     <code xmlns:soap12Env="http://www.w3.org/2003/05/soap-envelope" value="soap12Env:Receiver"/>
     <reason xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('ERROR_MESSAGE')"/>
   </makefault>
   <send/>
</sequence>

and a sequence in sequence to my proxy service configured like this:

<sequence xmlns="http://ws.apache.org/ns/synapse" name="InSequence" trace="enable">
   <entitlementService remoteServiceUrl="https://localhost:9443/services/" remoteServiceUserName="srxxx" remoteServicePassword="kiytr">
      <onReject/>
      <onAccept/>
      <advice/>
      <obligations/>
   </entitlementService>
   <header xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" name="wsse:Security" action="remove"/>
   <send/>
   <drop/>
</sequence>

I've tried several ways to get the error in my client without success if anyone can help me I would appreciate so much

回答1:

Configure a faultSequence inside your proxy service as shown in below. In your case you have to use the fault mediator inside the faultSequence.

<faultSequence>
    <makefault version="soap12">
        <code xmlns:soap12Env="http://www.w3.org/2003/05/soap-envelope" value="soap12Env:Receiver"/>
        <reason xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('ERROR_MESSAGE')"/>
    </makefault>
    <send/>
</faultSequence>

For more information needed for sending the error message to the client use following documentations

[1] http://docs.wso2.org/wiki/display/ESB460/Error+Handling+and+Error+Codes

[2] http://docs.wso2.org/wiki/display/ESB460/Fault+Mediator

来源：https://stackoverflow.com/questions/15913188/how-to-send-wso2-esb-error-message-or-exception-to-my-client

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