Ceilometer.Fold

Generic folds (and Decode)

class Known a where

An OpenStack measured known to Ceilometer. We can determine how to decode and aggregate Vaultaire data for it.

Methods

mkPrism :: Env -> APrism' Word64 a

mkFold :: Env -> Fold (Timed a) FoldResult

Instances

Known PDCPU

Known PDDiskWrite

Known PDDiskRead

Known PDImage

Known PDImagePollster

Known PDInstanceFlavor

Known PDInstanceDisk

Known PDInstanceRAM

Known PDInstanceVCPU

Known PDIP

Known PDNeutronRx

Known PDNeutronTx

Known PDSnapshot

Known PDSSD

Known PDVolume

data FoldResult

A universial wrapper of fold results to expose to the user.

For simplicity, it's not associated with the Known class. If the need to do that arises, use Typeable and Constraint tricks to pattern match.

Constructors

RSingle !Word64

RMapNum32 !(Map PFValue32 Word64)

RMapNum64 !(Map PFValue64 Word64)

RMapText !(Map PFValueText Word64)

Low-level folds

foldCPU :: Fold PDCPU Word64

foldDiskRead :: Fold PDDiskRead Word64

foldDiskWrite :: Fold PDDiskWrite Word64

foldNeutronRx :: Fold PDNeutronRx Word64

foldNeutronTx :: Fold PDNeutronTx Word64

foldVolume :: Window -> Fold (Timed PDVolume) Word64

foldSSD :: Window -> Fold (Timed PDSSD) Word64

foldImage :: Window -> Fold (Timed PDImage) Word64

foldImagePollster :: Fold (Timed PDImagePollster) (Map PFValue64 Word64)

foldInstanceFlavor :: (PDInstanceFlavor -> Bool) -> Fold (Timed PDInstanceFlavor) (Map PFValueText Word64)

foldInstanceVCPU :: (PDInstanceVCPU -> Bool) -> Fold (Timed PDInstanceVCPU) (Map PFValue32 Word64)

foldInstanceRAM :: (PDInstanceRAM -> Bool) -> Fold (Timed PDInstanceRAM) (Map PFValue32 Word64)

foldInstanceDisk :: (PDInstanceDisk -> Bool) -> Fold (Timed PDInstanceDisk) (Map PFValue32 Word64)

foldIP :: Window -> Fold (Timed PDIP) Word64

foldSnapshot :: Window -> Fold (Timed PDSnapshot) Word64

Utilities

timewrapFold :: Fold x y -> Fold (Timed x) y

Wrap a fold that doens't depend on time.