Chetan Mehrotra commented on SLING-7043:

Export of MetricRegistry is required for other reporters to work (which are 
codehale specific) like those from [~ianeboston] at [1]. Normal Sling code in 
general should not require the access to reported values and should mostly be 
doing report

[1] https://github.com/ieb/statsd-reporter-osgi

> Exporting  com.codahale.metrics.MetricRegistry is breaking the abstraction
> --------------------------------------------------------------------------
>                 Key: SLING-7043
>                 URL: https://issues.apache.org/jira/browse/SLING-7043
>             Project: Sling
>          Issue Type: Bug
>    Affects Versions: Commons Metrics 1.0.0
>            Reporter: Carsten Ziegeler
>            Priority: Blocker
>             Fix For: commons metrics 1.2.4
> commons metrics provides a nice abstraction over  com.codahale.metrics - 
> however it is exporting  com.codahale.metrics.MetricRegistry which seems to 
> be the only way to get at registered metrics objects. Which in turn is 
> completely breaking the purpose of this bundle.
> So we should
> a) drop exporting that service and avoid leaking internal implementation 
> details
> b) create our own version of the registry service

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