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Subject: Re: HandleFault in CXF
From: Daniel Kulp <dkulp@apache.org>
In-Reply-To: <1383218968274-5735813.post@n5.nabble.com>
Date: Wed, 6 Nov 2013 15:26:07 +0100
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Message-Id: <DF0093F2-633C-49D8-AF95-2F28967747E6@apache.org>
References: <1383218968274-5735813.post@n5.nabble.com>
To: users@cxf.apache.org,
 Faz <arshadmohammed.techie@gmail.com>


On Oct 31, 2013, at 12:29 PM, Faz <arshadmohammed.techie@gmail.com> =
wrote:

> Hi ALL,
>=20
> I'm using CXf's fault out interceptor to intercept the exception from =
the
> web services method. That works fine within the handleMessage method.. =
Now I
> have two queries,
>=20
> 1. How do I had extra information to the Fault object apart from =
setting the
> faultcode.?

Most likely, what you would need/want to do is take the Exception/Fault =
out of the message, create a new SoapFault with the new information, and =
set that back in the message and let the rest of CXF=92s chain do it=92s =
thing:


public void handleMessage(SoapMessage message) throws Fault {
	Fault f =3D (Fault) message.getContent(Exception.class);
	SoapFault fault =3D SoapFault.createFault(f, =
message.getVersion());
        //modify the SoapFault or create a new one or something
        message.setContent(Exception.class, fault);
}

The default Soap[12|11]FaultOutInterceptor will then grab that SoapFault =
from the message and output it correctly.


> 2. Say if there is any error in the handleMessage method, the control =
goes
> to handleFault method but in the handle fault method it simply unwinds =
and
> logs something like - *GetMth has thrown exception, unwinding now:
> java.lang.Exception:*. But the fault message(in xml format) is not =
being
> sent to the client as Output mesasage, How do I make sure that the =
fault
> message is sent as SOAPfault  to the clinet?

Do not throw any exceptions from the Fault chain.   If there is a fault =
thrown from the fault chain, there is really no way for us to be able to =
know what can be done about, how to fix the situation, etc=85 The =
assumption is that if a fault is thrown from the fault chain, then =
something seriously has gone wrong and we cannot write anything out to =
the client.   The normal case that this occurs is if we cannot write to =
the OutputStream due to the network closing the connection or similar.   =
In that case, there is nothing we can do except log the issue and move =
on.

Dan


> [in the hanldeMessage bleow, i have place *f=3Dnull *to introduce the =
fault ]
>=20
> Handle message and handleFault methods:
>=20
>=20
>         *public class SimpleSOAPFaultInterceptor extends
> AbstractSoapInterceptor {
> 	private static Logger log =3D Logger.getLogger("org.apache");
> =09
> 	public SimpleSOAPFaultInterceptor() {
> 		super(Phase.MARSHAL);
> 	}
> =09
> 	public void handleMessage(SoapMessage message) throws Fault {
> 		// TODO Auto-generated method stub
> 		try {
> 	=09
> 			Fault f =3D (Fault) =
message.getContent(Exception.class);
> 			//f=3Dnull; /[Introduing an excpetion so that =
handleFault is called]/	=09
> log.debug(" f ::::: "+ f.getCode());
> 			Throwable cause =3D f.getCause();
> 			if (cause instanceof MyServiceException) {
> 				f.setFaultCode(new QName("", =
String.valueOf("100000")));
> 			} else {
> 				log.warn("!!!!!!Unexpected Exception =
thrown ", cause);
> 			}
> 			} catch (SOAPException e) {
> 				// TODO Auto-generated catch block
> 				System.out.println("CAUGHT HERE "+e);
> 				e.printStackTrace();
> 			}  catch (Exception e) {
> 				// TODO Auto-generated catch block
> 				System.out.println("CAUGHT HERE =
Exception "+e);
> 				throw new Fault(new Exception(
>                        "Exception...."));
> 			}
> 	}
> =09
> =09
> =09
> 	@Override
> 	public void handleFault(SoapMessage message) {
> 		// TODO Auto-generated method stub
> 		super.handleFault(message);
> 	=09
> 		System.out.println("**handleFault the message ** =
"+message);
> 		Fault f =3D (Fault) message.getContent(Exception.class);
> 		System.out.println("**the f ** "+f);
> 	    //f.setFaultCode(new QName("", String.valueOf("8")));
> 		//SoapFault sf =3D new SoapFault("message",new QName("",
> String.valueOf("99000")));
> 		//SoapFault.createFault(f, message.getVersion())
> 	    //			 .setMessage("INSIDE DIUDE");
> 	=09
> 	}*
>=20
>=20
>=20
> --
> View this message in context: =
http://cxf.547215.n5.nabble.com/HandleFault-in-CXF-tp5735813.html
> Sent from the cxf-user mailing list archive at Nabble.com.

--=20
Daniel Kulp
dkulp@apache.org - http://dankulp.com/blog
Talend Community Coder - http://coders.talend.com