{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TupleSections #-}

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-elasticmapreduce-cluster-scalingtrigger.html

module Stratosphere.ResourceProperties.EMRClusterScalingTrigger where

import Stratosphere.ResourceImports
import Stratosphere.ResourceProperties.EMRClusterCloudWatchAlarmDefinition

-- | Full data type definition for EMRClusterScalingTrigger. See
-- 'emrClusterScalingTrigger' for a more convenient constructor.
data EMRClusterScalingTrigger =
  EMRClusterScalingTrigger
  { _eMRClusterScalingTriggerCloudWatchAlarmDefinition :: EMRClusterCloudWatchAlarmDefinition
  } deriving (Show, Eq)

instance ToJSON EMRClusterScalingTrigger where
  toJSON EMRClusterScalingTrigger{..} =
    object $
    catMaybes
    [ (Just . ("CloudWatchAlarmDefinition",) . toJSON) _eMRClusterScalingTriggerCloudWatchAlarmDefinition
    ]

-- | Constructor for 'EMRClusterScalingTrigger' containing required fields as
-- arguments.
emrClusterScalingTrigger
  :: EMRClusterCloudWatchAlarmDefinition -- ^ 'emrcstCloudWatchAlarmDefinition'
  -> EMRClusterScalingTrigger
emrClusterScalingTrigger cloudWatchAlarmDefinitionarg =
  EMRClusterScalingTrigger
  { _eMRClusterScalingTriggerCloudWatchAlarmDefinition = cloudWatchAlarmDefinitionarg
  }

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-elasticmapreduce-cluster-scalingtrigger.html#cfn-elasticmapreduce-cluster-scalingtrigger-cloudwatchalarmdefinition
emrcstCloudWatchAlarmDefinition :: Lens' EMRClusterScalingTrigger EMRClusterCloudWatchAlarmDefinition
emrcstCloudWatchAlarmDefinition = lens _eMRClusterScalingTriggerCloudWatchAlarmDefinition (\s a -> s { _eMRClusterScalingTriggerCloudWatchAlarmDefinition = a })