#1315 [HHQ-1919] Need API in AvailabilityManager to calculate down

[Hyperic Team]

http://jira.hyperic.com/browse/HHQ-1919


This is in support of HQ-1248.

I need an API that returns the downtime in milliseconds from the AvailabilityManager. I imagine the API would just get all RLEs for the given resource over the requested period of time. It would then compute downtime based on those RLEs.

long getDowntime(Resource r, long start, long end)