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From "Chris Berry" <chriswbe...@gmail.com>
Subject Building a SOAPFaultHandler
Date Tue, 04 Jul 2006 14:40:15 GMT
I am reposting this once more w/ hopes that one of the Axis wizards
might give me some advice. I'm really stumped on this one...
Thanks,
-- Chris

---------- Forwarded message ----------
From: Chris Berry <chriswberry@gmail.com>
Date: Jun 26, 2006 7:55 AM
Subject: Building a SOAPFaultHandler
To: axis-user@ws.apache.org


Greetings,
I'm struggling to build an Axis Handler which modifies a SOAPFault on
it's way back out to the Client. I want to add a bit of generic
information (e.g. hostname, svcname, timestamp, etc.) to the SOAPFault
(i.e. to the faultstring and faultactor) o assist my Client's in their
debugging. Unfortunately I am not able to actually modify what the
Client sees, although I can see the Message is changed locally. Is
this even possible?? It appears that the Message is read-only at this
point?? Below is the code I'm using.

Does anyone have any ideas for me?? Am I just doing something silly??
Thanks,
-- Chris

public class ErrorHandler
  extends BasicHandler
{
  //------------------------------------
  public void invoke( MessageContext msgContext  )
    throws AxisFault
  {
    try {
      /* do nothing */
    }
    catch ( Exception e ) {
      errlog.error( e );
      throw AxisFault.makeFault( e );
    }
  }

  //------------------------------------
  public void onFault(MessageContext msgContext)
  {
    try {
      addFaultDetails( msgContext );
      logError( msgContext );
    }
    catch ( Exception ee ) {
      errlog.error( "An additional error occured while processing
onFault()", ee );
    }
  }

  //------------------------------------
  public void addFaultDetails( MessageContext msgContext )
  {
    try {
      if ( msgContext == null )
        return; // EXIT

      SOAPMessage msg = msgContext.getMessage();
      if ( msg == null )
        return; // EXIT

      SOAPBody body = msg.getSOAPBody();
      if ( body == null )
        return; // EXIT

      SOAPFault fault = (SOAPFault)(body.getFault());
      if ( fault == null )
        return; // EXIT

      // send back hostname, timestamp, svcname as part of the
      //   "faultcode/faultstring/faultactor" fields..
      String targetService = msgContext.getTargetService();
      if ( targetService == null )
        targetService = "UNKNOWN_SVC";

      String operation = "UNKNOWN_OP";
      if ( msgContext.getOperation() != null
           && msgContext.getOperation().getName() != null )
        operation = msgContext.getOperation().getName();

      String svcname = targetService + "." + operation;
      String timestamp = (new Date()).toString();
      String hostname = java.net.Inet4Address.getLocalHost().getHostName();

      String faultString = fault.getFaultString();
      faultString = "SOAPFault @ <" + timestamp + "> = " + faultString;
      fault.setFaultString( faultString );

      String faultActor = fault.getFaultActor();
      fault.setFaultActor(  "[" + svcname + "] @ (" + hostname + ") "
+ faultActor );

      SOAPEnvelope env = new SOAPEnvelope();
      env.clearBody();
      env.addBodyElement(fault);

      Message respMsg = new Message(env);
      msgContext.setResponseMessage(respMsg);
    }
    catch ( Exception ee ) {
      errlog.error( "An additional error occured while processing
onFault()", ee );
    }
  }

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