content: {-| Definition of the data collectors used by MonD.
  
  -}
  
  {-
  
  Copyright (C) 2014 Google Inc.
  All rights reserved.
  
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  modification, are permitted provided that the following conditions are
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  this list of conditions and the following disclaimer.
  
  2. Redistributions in binary form must reproduce the above copyright
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  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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  -}
  
  module Ganeti.DataCollectors( collectors ) where
  
  import qualified Data.ByteString.UTF8 as UTF8
  import Data.Map (findWithDefault)
  
  import qualified Ganeti.DataCollectors.CPUload as CPUload
  import qualified Ganeti.DataCollectors.Diskstats as Diskstats
  import qualified Ganeti.DataCollectors.Drbd as Drbd
  import qualified Ganeti.DataCollectors.InstStatus as InstStatus
  import qualified Ganeti.DataCollectors.Lv as Lv
  import qualified Ganeti.DataCollectors.XenCpuLoad as XenCpuLoad
  import Ganeti.DataCollectors.Types (DataCollector(..),ReportBuilder(..))
  import Ganeti.JSON (GenericContainer(..))
  import Ganeti.Objects
  import Ganeti.Types
  
  -- | The list of available builtin data collectors.
  collectors :: [DataCollector]
  collectors =
    [ cpuLoadCollector
    , xenCpuLoadCollector
    , diskStatsCollector
    , drdbCollector
    , instStatusCollector
    , lvCollector
    ]
    where
      f .&&. g = \x y -> f x y && g x y
      xenHypervisor = flip elem [XenPvm, XenHvm]
      xenCluster _ cfg =
        any xenHypervisor . clusterEnabledHypervisors $ configCluster cfg
      collectorConfig name cfg =
        let config = fromContainer . clusterDataCollectors $ configCluster cfg
        in  findWithDefault mempty (UTF8.fromString name) config
      updateInterval name cfg = dataCollectorInterval $ collectorConfig name cfg
      activeConfig name cfg = dataCollectorActive $ collectorConfig name cfg
      diskStatsCollector =
        DataCollector Diskstats.dcName Diskstats.dcCategory
          Diskstats.dcKind (StatelessR Diskstats.dcReport) Nothing activeConfig
          updateInterval
      drdbCollector =
        DataCollector Drbd.dcName Drbd.dcCategory Drbd.dcKind
          (StatelessR Drbd.dcReport) Nothing activeConfig updateInterval
      instStatusCollector =
        DataCollector InstStatus.dcName InstStatus.dcCategory
          InstStatus.dcKind (StatelessR InstStatus.dcReport) Nothing
          (xenCluster .&&. activeConfig)  updateInterval
      lvCollector =
        DataCollector Lv.dcName Lv.dcCategory Lv.dcKind
          (StatelessR Lv.dcReport) Nothing activeConfig updateInterval
      cpuLoadCollector =
        DataCollector CPUload.dcName CPUload.dcCategory CPUload.dcKind
          (StatefulR CPUload.dcReport) (Just CPUload.dcUpdate) activeConfig
          updateInterval
      xenCpuLoadCollector =
        DataCollector XenCpuLoad.dcName XenCpuLoad.dcCategory XenCpuLoad.dcKind
          (StatefulR XenCpuLoad.dcReport) (Just XenCpuLoad.dcUpdate) activeConfig
          updateInterval
  