6:40 p.m.
Thanks for the reply Stuart. I've tried this with no success, but perhaps
I'm doing it wrong.
List<PredicatedHandler> ph =
PredicatedHandlersParser.parse(predicatesLines, _classLoader);
servletBuilder.addOuterHandlerChainWrapper(next ->
Handlers.predicates(ph,next));
When the response-code handler fires, I still get no response body.
On a related note, when I move the predicates into an outer handler chain
wrapper, my default response listener also doesn't fire at all.
On an unrelated train of thought, I've been trying to see if I can get the
default response listener to automatically dispatch the correct error page,
but that hasn't been going well either. If I don't use the outer handler
chain idea, but try to capture the empty response in a default response
listener, I can return a static message using the Sender class
Sender sender = exchange.getResponseSender();
sender.send(errorHTMLString);
But if I try to run something this in my default response listener to
invoke my error pages
ServletRequestContext src =
exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
HttpServletResponseImpl response = src.getOriginalResponse();
response.doErrorDispatch( exchange.getStatusCode(),
exchange.getReasonPhrase() );
Then it's as though nothing happens and I still get an empty response.
Thanks!
~Brad
*Developer Advocate*
*Ortus Solutions, Corp *
E-mail: brad(a)coldbox.org
ColdBox Platform: http://www.coldbox.org
Blog: http://www.codersrevolution.com
On Thu, Jul 2, 2020 at 6:17 PM Stuart Douglas <sdouglas(a)redhat.com> wrote:
The predicate languages are executed before the Servler handlers, so
they
won't be handled by Servlet error pages.
If you are setting this all up programmatically you could use
io.undertow.servlet.api.DeploymentInfo#addOuterHandlerChainWrapper to setup
the predicate handler after the initial servlet one, which should mean that
the servlet error handling will handle the response code.
Stuart
On Fri, 3 Jul 2020 at 08:25, Brad Wood <bdw429s(a)gmail.com> wrote:
> When I configure an error page similar to this:
>
> servletBuilder.addErrorPage( new ErrorPage( "404.html", 404));
>
> This works great when I hit a path in my browser that doesn't exist. The
> contents of the *404.html* file is served with a response code of *404*.
>
> However, if I also use the predicate language to define something like:
>
> path(/box.json)->response-code(404)
>
> and then I hit *localhost/box.json* in my browser, I get a *404* status
> code but with no response body.
>
> - The docs say the response-code handler ends the exchange, but
> should it still respect the error pages?
> - How can I modify my use of Undertow to respect the error pages
> when using the response-code handler?
> - I've seen in the docs the ability to have a
> *addDefaultResponseListener()* but I'm not sure if it is the correct
> solution for this, nor how I would access the error page configuration
> dynamically as to not need to duplicate my work.
>
> Thanks!
>
> ~Brad
>
> *Developer Advocate*
> *Ortus Solutions, Corp *
>
> E-mail: brad(a)coldbox.org
> ColdBox Platform: http://www.coldbox.org
> Blog: http://www.codersrevolution.com
>
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