Customize Response error to client using Invoker

[Juan José Pérez Consuegra]

Hello all,

I' trying to send a custom error message to client when a non authorization
intent has been detected. I'm using invoker to extract user and password
and I want to send back a Response or launch an Exception. If I use a
Response the received message in client is empty with status 200 OK.

And if I throw a webapplicationexception like this:


<ns1:XMLFault 
xmlns:ns1="http://cxf.apache.org/bindings/xformat";><ns1:faultstring
xmlns:ns1="http://cxf.apache.org/bindings/xformat
">javax.ws.rs.WebApplicationException</ns1:faultstring></ns1:XMLFault>

with server status 500.


Here is my code:
    @Override
    public Object invoke(Exchange exchange, Object requestParams, Object
resourceObject) throws WebApplicationException{
        Message mensaje = exchange.getInMessage();
        AuthorizationPolicy policy =
(AuthorizationPolicy)mensaje.get(AuthorizationPolicy.class);
        if (policy == null) {
            return Response.status(401).build();
//            throw new
WebApplicationException(Response.status(401).build());
        }
        String retUsuario = policy.getUserName();
        String retPassword = policy.getPassword();
        if (autenticacionValida(retUsuario, retPassword)){
            return super.invoke(exchange, requestParams, resourceObject);
        } else {
            return Response.status(401).build();
//            throw new
WebApplicationException(Response.status(401).build());
        }
    }

May I use an exception mapper?? If so, How I must register the mapper, I
tryed to do that like this:

        sf = new JAXRSServerFactoryBean();
        sf.setResourceClasses(RLABSystemWSRest.class);
        sf.setResourceProvider(RLABSystemWSRest.class,
        new SingletonResourceProvider(new RLABSystemWSRest()));
        sf.setAddress("http://localhost:9001/";);
        RestInvoker invoker = new RestInvoker();
        RestExceptionMapper mapper = new RestExceptionMapper();
        sf.setInvoker(invoker);
        sf.setProvider(mapper);
        server = sf.create();

with this code as mapper:

@Provider
public class RestExceptionMapper implements
        ExceptionMapper<WebApplicationException> {

    @Override
    public Response toResponse(WebApplicationException ex) {
        ResponseBuilder rb = Response.status(401);
        return rb.build();
    }

}

but it doesn't work.

I have another question, is about the stack trace in mi server console, I
would like it doesn't appear, or show a custom message too, when I return a
Response nothing happens of course, but when I throws a
webapplicationexception added to the result in client I have this in my
server:

Advertencia: Interceptor for {
http://ws.cserver.related.scc.uned.es/}RLABSystemWSRest has thrown
exception, unwinding now
javax.ws.rs.WebApplicationException
    at
es.uned.scc.related.cserver.ws.RestInvoker.invoke(RestInvoker.java:23)
    at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:94)
    at
org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)
    at
org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:94)
    at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
    at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:122)
    at
org.apache.cxf.transport.http_jetty.JettyHTTPDestination.serviceRequest(JettyHTTPDestination.java:344)
    at
org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:310)
    at
org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:72)
    at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
    at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:941)
    at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
    at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:875)
    at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
    at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
    at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handl
     .........



thanks in advance,

Juanjo