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https://issues.apache.org/jira/browse/CXF-4959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13628216#comment-13628216
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Sergey Beryozkin commented on CXF-4959:
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FYI, if you depend on JSONProvider then you can set consumesTypes and/or
producesTypes properties on it, so for example, you can set a list (a/c+d,
a+d), etc
Re "application/my-type+json is clearly applicable under application/json".
I've heard a similar statement just recently, this is kind of new to me, but
looks like I'm not quite aware of this fact. Do you have a link to some
specific spec text ? thanks
> Support hierarchical mimetypes
> ------------------------------
>
> Key: CXF-4959
> URL: https://issues.apache.org/jira/browse/CXF-4959
> Project: CXF
> Issue Type: Improvement
> Components: JAX-RS
> Affects Versions: 2.7.4
> Reporter: Todd Orr
>
> I am attempting to provide a custom hypermedia model through the mimetype
> returned in a response. I would like to ensure that the Content-Type header
> reflects this while serializing the data according to the best fit message
> body writer. Unfortunately, this doesn't work. I have tried two approaches:
> 1. Annotated the service method with @Produces("application/my-type+json")
> 2. Used a ContainerResponseFilter to set the Content-Type header according to
> the data type being returned (effectively the same goal as #1)
> The result of either approach is not good, but they fail differently.
> 1. Results in a 404 as the client is sending an accept for application/json
> 2. The serialization fails with a no message body writer found error
> I'd expect both of these approaches to work as follows:
> 1. CXF determines the best match given the available producers. For example,
> application/my-type+json is clearly applicable under application/json, so it
> should match application/json request Accept headers as well as more specific
> Accept values.
> 2. The message body writer for application/json should apply to
> application/my-type+json since the latter is clearly applicable under
> application/json.
> I believe the argument against this request would include a plea for forcing
> the client to specify exactly what it wants returned and having the server
> rigidly behave. However, I think this falls under the purview of the
> Robustness Principle (Be conservative in what you send, be liberal in what
> you accept). It would be a much better experience to implement something akin
> to what I have described.
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