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https://issues.apache.org/jira/browse/SLING-4312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14326085#comment-14326085
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Marius Petria commented on SLING-4312:
--------------------------------------

Hi [~cziegeler]

I implemented the bundle filter such that the mapping is visible only for those 
that can use it [1]. ([~bosschaert] pointed me in the right direction) 

The amendments are treated because I hooked myself just before/after the 
activeBindings are updated. 

I have two questions related to my current impl.
1. The ServiceUserMapping interface, is it a good name, structure?
2. Right now each amendment modification triggers the unregistering of all 
ServiceUserMapping and then registers all back. Do you think that needs to be 
optimized?

[1] 
https://github.com/mpetria/sling/compare/mpetria:e62a0e94005709357e9a42a2ba526985d4b588a4...307d32bfafb908ae90569ffd200079553ac2a32c



> Register an osgi service for each available service user 
> ---------------------------------------------------------
>
>                 Key: SLING-4312
>                 URL: https://issues.apache.org/jira/browse/SLING-4312
>             Project: Sling
>          Issue Type: Improvement
>          Components: Service User Mapper
>            Reporter: Marius Petria
>
> In order to only activate osgi components when a service user mapping is 
> available it would be useful to have an osgi service registered for a service 
> user. A component can reference the registered service name and only start 
> when that becomes available.
> {code}
> @Reference(target="(name=serviceName)")
> ServiceUserExists userExists;
> {code}
>  



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