graflog (empty) → 0.1.0

raw patch · 7 files changed

+151/−0 lines, 7 filesdep +aesondep +basedep +bytestringsetup-changed

Dependencies added: aeson, base, bytestring, graflog, hspec, mtl, test-fixture, text, text-conversions

Files

• LICENSE +30/−0
• README.md +3/−0
• Setup.hs +2/−0
• graflog.cabal +42/−0
• src/Graflog/Console.hs +20/−0
• src/Graflog/Logger.hs +53/−0
• test/Spec.hs +1/−0

@@ -0,0 +1,30 @@+Copyright Michael Adlai Arnold (c) 2017++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Michael Adlai Arnold nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++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+OWNER 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 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,3 @@+# Graflog++Monadic correlated log events!

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,42 @@+name:                graflog+version:             0.1.0+synopsis:            Monadic correlated log events+description:         Please see README.md+homepage:            https://github.com/m-arnold/graflog#readme+license:             BSD3+license-file:        LICENSE+author:              Michael Adlai Arnold+maintainer:          marnold@cj.com+copyright:           2016 Michael A. Arnold+category:            Development+build-type:          Simple+extra-source-files:  README.md+cabal-version:       >=1.10++library+  hs-source-dirs:      src+  exposed-modules:     Graflog.Logger, Graflog.Console+  build-depends:       base >= 4.7 && < 5+                     , text-conversions+                     , text+                     , aeson+                     , bytestring+  default-language:    Haskell2010+  default-extensions:  GeneralizedNewtypeDeriving++test-suite graflog-test+  type:                exitcode-stdio-1.0+  hs-source-dirs:      test+  main-is:             Spec.hs+  build-depends:       base+                     , graflog+                     , test-fixture+                     , hspec+                     , mtl+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N+  default-language:    Haskell2010+  default-extensions:  ConstraintKinds DeriveGeneric FlexibleContexts FlexibleInstances GADTs GeneralizedNewtypeDeriving KindSignatures LambdaCase MultiParamTypeClasses NamedFieldPuns OverloadedStrings RankNTypes ScopedTypeVariables TypeOperators DuplicateRecordFields++source-repository head+  type:     git+  location: https://github.com/m-arnold/graflog

@@ -0,0 +1,20 @@+module Graflog.Console+  ( Console(..)+  , writeStdout'+  , enableStdoutLineBuffering+  ) where++import Control.Monad.IO.Class (MonadIO(liftIO))+import Data.Text (Text)+import qualified Data.Text.IO as T (putStrLn)+import System.IO (hSetBuffering, stdout, BufferMode(..))++class Monad m => Console m where+  writeStdout :: Text -> m ()++writeStdout' :: MonadIO m => Text -> m ()+writeStdout' = liftIO . T.putStrLn++-- this function forces stdout into line buffering mode; useful for CloudFormation logs+enableStdoutLineBuffering :: MonadIO m => m ()+enableStdoutLineBuffering = liftIO $ hSetBuffering stdout LineBuffering

@@ -0,0 +1,53 @@+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE TemplateHaskell #-}++module Graflog.Logger+  ( Logger(..)+  , Event(..)+  , CorrelationId(..)+  , EventId(..)+  , Action(..)+  , logEvent'+  , jsonEncode+  ) where++import Data.Aeson (ToJSON, FromJSON, encode)+import Data.Aeson.TH (deriveJSON, defaultOptions, fieldLabelModifier)+import Data.ByteString (ByteString)+import Data.ByteString.Lazy (toStrict)+import Data.Maybe (fromJust)+import Data.String (IsString)+import Data.Text (Text)+import Data.Text.Conversions (decodeConvertText, UTF8(..))++import Graflog.Console++class Monad m => Logger m where+  logEvent :: Event -> m ()++newtype CorrelationId = CorrelationId Integer+  deriving (Eq, Show, Num, FromJSON, ToJSON)++newtype EventId = EventId Integer+  deriving (Eq, Show, Num, FromJSON, ToJSON)++newtype Action = Action Text+  deriving (Eq, Show, IsString, FromJSON, ToJSON)++data Event = Event+  { _correlationId :: CorrelationId+  , _eventId :: EventId+  , _action :: Action+  , _message :: Text+  } deriving (Eq, Show)++deriveJSON defaultOptions{fieldLabelModifier = drop 1} ''Event++logEvent' :: Console m => Event -> m ()+logEvent' = writeStdout . jsonEncode++-- this will always work b/c UTF8 spec+jsonEncode :: ToJSON a => a -> Text+jsonEncode = byteStringToText . toStrict . encode+  where byteStringToText :: ByteString -> Text+        byteStringToText bs = fromJust $ decodeConvertText (UTF8 (bs :: ByteString))

@@ -0,0 +1,1 @@+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}