Drop commons.math dependency
----------------------------
Key: SLING-2361
URL: https://issues.apache.org/jira/browse/SLING-2361
Project: Sling
Issue Type: Improvement
Components: Engine
Reporter: Felix Meschberger
Assignee: Felix Meschberger
Fix For: Engine 2.2.6
As of Rev. 1138159 (SLING-1476) the RequestProcessorMBeanImpl exists to convey
Sling request processing statistics. For the mean and variance values the
Commons Math SynchronizedSummaryStatistics class is used.
IMHO this is quite a heavy dependency for such a simple computation (well, the
mathematics behind this are not simple, at least not to me ;-) ). So I suggest
we in lie a simple continuously updating algorithm into the addRequestDuration
method, which is modified to be synchronized.
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