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https://issues.apache.org/jira/browse/CXF-4959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638086#comment-13638086
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Todd Orr commented on CXF-4959:
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Terrific thanks! I'll test this asap.
> 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
> Assignee: Sergey Beryozkin
> Fix For: 2.8.0, 2.7.5
>
>
> 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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