[jira] [Updated] (SLING-6187) Provide a way for a POST request to assert a set of required SlingPostProcessors

["Justin Edelson (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-6187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Edelson updated SLING-6187:
----------------------------------
    Attachment: SLING-6187c.diff

[~alexander.klimetschek] I'm attaching a new patch (SLING-6187c.diff) which implements what I think you were describing. I'm still a little concerned about the backwards compatibility impact, but I am coming around to the simplicity of this solution.

> Provide a way for a POST request to assert a set of required SlingPostProcessors
> --------------------------------------------------------------------------------
>
>                 Key: SLING-6187
>                 URL: https://issues.apache.org/jira/browse/SLING-6187
>             Project: Sling
>          Issue Type: Improvement
>          Components: Servlets
>            Reporter: Justin Edelson
>            Assignee: Justin Edelson
>             Fix For: Servlets Post 2.3.16
>
>         Attachments: SLING-6187c.diff, SLING-6187.patch, SLING-6187-profile.diff, SLING-6187-profile.diff, SLING-6187-validating.diff
>
>
> I would like to add support for a new "special" request parameter understood by the Sling Post Servlet named {{:requiredPostProcessors}}. This parameter may contain a comma-delimited list of names (see below) which *must* be available *at the time the request is processed* in order for the request to be handled. Whether or not those processors _do_ anything or whether the request succeeds or not is a separate question; this is just a preflight check if you will.
> If any of the required SlingPostProcessors are not available, the request will fail with a 501 error.
> The name of a SlingPostProcessor will be defined by a newly defined service registration property {{postProcessor.name}} and default to the simple name of the SlingPostProcessor's implementation class if that property is not defined.



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