tinylog-0.10.4: Simplistic logging using fast-logger.

Safe Haskell	None
Language	Haskell2010

System.Logger.Class

Description

The MonadLogger type-class and associated functions.

Synopsis

Documentation

data Settings Source

defSettings :: Settings Source

Default settings:

logLevel = Debug
output = StdOut
format = iso8601UTC
delimiter = ", "
netstrings = False
bufSize = defaultBufSize
name = ""

logLevel :: Settings -> Level Source

setLogLevel :: Level -> Settings -> Settings Source

output :: Settings -> Output Source

setOutput :: Output -> Settings -> Settings Source

format :: Settings -> DateFormat Source

setFormat :: DateFormat -> Settings -> Settings Source

delimiter :: Settings -> ByteString Source

setDelimiter :: ByteString -> Settings -> Settings Source

netstrings :: Settings -> Bool Source

setNetStrings :: Bool -> Settings -> Settings Source

bufSize :: Settings -> Int Source

setBufSize :: Int -> Settings -> Settings Source

name :: Settings -> Text Source

setName :: Text -> Settings -> Settings Source

data Level Source

Constructors

Trace
Debug
Info
Warn
Error
Fatal

Instances

Eq Level
Ord Level
Read Level
Show Level

data Output Source

Constructors

StdOut
StdErr
Path FilePath

Instances

Eq Output
Ord Output
Show Output

data DateFormat Source

Instances

Eq DateFormat
Ord DateFormat
Show DateFormat
IsString DateFormat

iso8601UTC :: DateFormat Source

ISO 8601 date-time format.

data Logger Source

new :: MonadIO m => Settings -> m Logger Source

Create a new Logger with the given Settings. Please note that the logLevel can be dynamically adjusted by setting the environment variable LOG_LEVEL accordingly. Likewise the buffer size can be dynamically set via LOG_BUFFER and netstrings encoding can be enabled with LOG_NETSTR=True

create :: MonadIO m => Output -> m Logger Source

Invokes new with default settings and the given output as log sink.

level :: Logger -> Level Source

Inspect this logger's threshold.

flush :: MonadIO m => Logger -> m () Source

Force buffered bytes to output sink.

close :: MonadIO m => Logger -> m () Source

Closes the logger.

clone :: Maybe Text -> Logger -> Logger Source

Clone the given logger and optionally give it a name (use (Just "") to clear).

settings :: Logger -> Settings Source

class Monad m => MonadLogger m where Source

Methods

log :: Level -> (Msg -> Msg) -> m () Source

trace :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.

debug :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.

info :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.

warn :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.

err :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.

fatal :: MonadLogger m => (Msg -> Msg) -> m () Source

Abbreviation for log using the corresponding log level.