users@jax-rs-spec.java.net

[jax-rs-spec users] [jsr339-experts] Re: Error responses with entities and the media types

From: Marek Potociar <marek.potociar_at_oracle.com>
Date: Wed, 13 Mar 2013 15:37:10 +0100

Hi Sergey,

We're talking about core, "low level" API being used here. Let's not try to prevent potential failures by making spec too complex without any practical gain on the user end.

Marek

On Mar 13, 2013, at 3:20 PM, Sergey Beryozkin <sberyozkin_at_talend.com> wrote:

> Hi
>
> We've talked about it before, in context of the exception mappers mapping the exceptions to Responses with non empty entities,
>
> example, the client Accepts application/xml, the server throws an exception, the mapper maps it to
>
> Response.status(400).type("text/plain").entity("Bad response").build().
>
> and this is exactly what the client should get back despite expecting only XML.
>
> However, consider that either the application code or even the exception mapper does
>
> Response.status(200).type("application/json").entity(someEntityBean).build().
>
> This is clearly an error that is better be detected by the server runtime, before the client code like "client.get(StreamSource.class)" reports something like "{" is not allowed in XML, etc.
>
> Should the spec say that if Response status is >=400 and the entity is not null then this Response media type whatever it is, is used; otherwise, if Response is 200, the entity is not null, then the runtime should treat its media type the same way it treats @Produces ?
>
> Sergey