Handle EndpointServlet-produced SOAP faults (JAX-RPC)

[a.kiselyov]

Hi All,

I've got very simple question: are developers able to handle SOAP faults (JAX-RPC, JBoss 4.2.3), which are

results of exceptions that occur outside actual endpoint call?

My services are configured like this:

web.xml extract:

   <servlet>

    <servlet-name>ServiceAServlet</servlet-name>

    <servlet-class>org.jboss.wsf.stack.jbws.EndpointServlet</servlet-class> 

    <init-param>

      <param-name>jboss.ws.endpoint</param-name> 

      <param-value>my.package.service.ServiceAImpl</param-value>

    </init-param>

  </servlet>

webservices.xml extract:

<port-component>

    <port-component-name>ServA</port-component-name>

    <wsdl-port>ServAPort</wsdl-port>

    <service-endpoint-interface>my.package.service.ServiceA</service-endpoint-interface>

    <service-impl-bean>

        <servlet-link>ServiceAServlet</servlet-link>

    </service-impl-bean>

    <handler>

        <handler-name>Fault Handler</handler-name>

        <handler-class>my.package.handlers.FaultHideHandler</handler-class>

    </handler>

</port-component>

Dummy test handler:

public class FaultHideHandler extends GenericHandler {

    /*

     * (non-Javadoc)

     *

     * @see javax.xml.rpc.handler.GenericHandler#getHeaders()

     */

    @Override

    public QName[] getHeaders() {

        return new QName[0];

    }

    /*

     * (non-Javadoc)

     *

     * @see

     * javax.xml.rpc.handler.GenericHandler#handleFault(javax.xml.rpc.handler

     * .MessageContext)

     */

    @Override

    public boolean handleFault(MessageContext context) {

        if (context instanceof SOAPMessageContext) {

            SOAPMessage message = ((SOAPMessageContext) context).getMessage();

            try {

                SOAPBody body = message.getSOAPBody();

                SOAPFault fault = body.getFault();

                System.out.println(fault.getFaultCode());

                System.out.println(fault.getFaultCodeAsName());

                System.out.println(fault.getFaultCodeAsQName());

                System.out.println(fault.getFaultString());

            } catch (SOAPException e) {

                e.printStackTrace();

            }

        }

        return true;

    }

}

When some exception (e.g. related to the message parse) throw, e.g.:

javax.xml.rpc.soap.SOAPFaultException: org.xml.sax.SAXParseException: The element type "int_2" must be terminated by the matching end-tag "</int_2>".

    at org.jboss.ws.core.jaxrpc.SOAPFaultHelperJAXRPC.exceptionToFaultMessage(SOAPFaultHelperJAXRPC.java:189)

    at org.jboss.ws.core.jaxrpc.SOAP11BindingJAXRPC.createFaultMessageFromException(SOAP11BindingJAXRPC.java:63)

    at org.jboss.ws.core.CommonSOAPBinding.bindFaultMessage(CommonSOAPBinding.java:671)

    at org.jboss.wsf.stack.jbws.RequestHandlerImpl.processRequest(RequestHandlerImpl.java:488)

    at org.jboss.wsf.stack.jbws.RequestHandlerImpl.handleRequest(RequestHandlerImpl.java:284)

    at org.jboss.wsf.stack.jbws.RequestHandlerImpl.doPost(RequestHandlerImpl.java:201)

    at org.jboss.wsf.stack.jbws.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:134)

    at org.jboss.wsf.stack.jbws.EndpointServlet.service(EndpointServlet.java:84)

...

client receive comprehensive fault message:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">

   <env:Header/>

   <env:Body>

      <env:Fault>

         <faultcode>env:Client</faultcode>

         <faultstring>org.xml.sax.SAXParseException: The element type "int_2" must be terminated by the matching end-tag "&lt;/int_2>".</faultstring>

      </env:Fault>

   </env:Body>

</env:Envelope>

but handler isn't triggered. When fault caused by exception, thrown by endpoint implementation itself - it works perfect.

Modifying standard-jaxrpc-endpoint-config.xml didn't help either.

So, is there some way to do it? Any help is greatly appreciated.