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https://issues.apache.org/jira/browse/SLING-4544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14383784#comment-14383784
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Joel Richard commented on SLING-4544:
-------------------------------------
[~rombert], although the log-API mentions MessageFormat, I didn't find an
invocation which uses any of the more advanced functionalities. Don't you think
it would be acceptable to write a very limited MessageFormat implementation
which is used here instead of java.text.MessageFormat (and does guarantee to
not throw an exception and would just ignore the advanced formatting
capabilities).
> Performance: MessageFormat shouldn't be used for logging in
> SlingRequestProgressTracker
> ---------------------------------------------------------------------------------------
>
> Key: SLING-4544
> URL: https://issues.apache.org/jira/browse/SLING-4544
> Project: Sling
> Issue Type: Improvement
> Components: Engine
> Affects Versions: Engine 2.4.0
> Reporter: Joel Richard
> Labels: performance
> Attachments: Screen Shot 2015-03-25 at 10.42.05.png
>
>
> I am profiling an application where up to 5% of the rendering time is spent
> in MessageFormat.format for SlingRequestProgressTracker.log (see attached
> screenshot). Since the advanced capabilities of MessageFormat are not
> required here, it should be rather easy to implement a utility which supports
> \{x} as well but is much faster.
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