[jira] [Resolved] (CXF-4959) Support hierarchical mimetypes

["Sergey Beryozkin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CXF-4959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Beryozkin resolved CXF-4959.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.7.5
                   2.8.0
         Assignee: Sergey Beryozkin

I've renamed the property to "media.subtype.partial.check", give 2.7.x SNAPSHOTS a try in a day or two, 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
>            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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