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{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE OverloadedStrings #-}
module Graylog.Gelf where
import Data.Aeson (ToJSON (..), Value (..), genericToJSON,
toJSON)
import Data.Aeson.Casing
import Data.Scientific
import Data.Text (Text)
import Data.Time
import Data.Typeable
import Data.Vector
import GHC.Generics
data GELF
= GELF
{ _gelfVersion :: Version
, _gelfHost :: Text
, _gelfShortMessage :: Text
, _gelfFullMessage :: Maybe Text
, _gelfTimestamp :: Maybe UTCTime
, _gelfLevel :: Maybe SyslogLevel
, _gelfLine :: Maybe Word
, _gelfFile :: Maybe Text
, _gelfAdditionalFields :: Vector Field
}
deriving (Show, Typeable, Generic)
instance ToJSON GELF where
toJSON = genericToJSON $ aesonPrefix snakeCase
--
data Version
= Version1x1
deriving (Eq, Show, Typeable, Generic)
instance ToJSON Version where
toJSON Version1x1 = String "1.1"
--
data SyslogLevel
= Emergency
| Alert
| Critical
| Error
| Warning
| Notice
| Informational
| Debug
deriving (Eq, Ord, Show, Typeable, Generic)
instance ToJSON SyslogLevel where
toJSON Emergency = Number 0
toJSON Alert = Number 1
toJSON Critical = Number 2
toJSON Error = Number 3
toJSON Warning = Number 4
toJSON Notice = Number 5
toJSON Informational = Number 6
toJSON Debug = Number 7
--
data Field
= FieldString Text
| FieldNumber Scientific
deriving (Eq, Show, Typeable, Generic)
instance ToJSON Field where
toJSON (FieldString s) = String s
toJSON (FieldNumber n) = Number n
|
