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fluent-logger (empty) → 0.1.0.0

raw patch · 8 files changed

+649/−0 lines, 8 filesdep +attoparsecdep +basedep +bytestringsetup-changed

Dependencies added: attoparsec, base, bytestring, conduit, criterion, fluent-logger, hspec, msgpack, network, network-conduit, network-socket-options, old-locale, stm, time, transformers

Files

+ LICENSE view
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+ Network/Fluent/Logger.hs view
@@ -0,0 +1,192 @@+--+-- Copyright (C) 2012 Noriyuki OHKAWA+--+-- Licensed under the Apache License, Version 2.0 (the "License");+-- you may not use this file except in compliance with the License.+-- You may obtain a copy of the License at+--+--     http://www.apache.org/licenses/LICENSE-2.0+--+-- Unless required by applicable law or agreed to in writing, software+-- distributed under the License is distributed on an "AS IS" BASIS,+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.+-- See the License for the specific language governing permissions and+-- limitations under the License.+--+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE DoRec #-}+-- | Fluent Logger for Haskell+module Network.Fluent.Logger+    ( -- * Logger+      FluentLogger+    , withFluentLogger+    , newFluentLogger+    , closeFluentLogger+      -- * Settings+    , FluentSettings(..)+    , defaultFluentSettings+      -- * Post+    , post+    , postWithTime+    ) where++import qualified Data.ByteString as BS+import Data.ByteString.Char8 ( unpack )+import qualified Data.ByteString.Lazy as LBS+import Data.Monoid ( mconcat )+import Data.Time ( getCurrentTime, formatTime )+import qualified Network.Socket as NS+import Network.Socket.Options ( setRecvTimeout, setSendTimeout )+import Network.Socket.ByteString.Lazy ( sendAll )+import Control.Monad ( void, forever, when )+import Control.Applicative ( (<$>) )+import Control.Concurrent ( ThreadId, forkIO, killThread )+import Control.Concurrent.STM ( atomically+                              , TChan, newTChanIO, readTChan, peekTChan, writeTChan+                              , TVar, newTVarIO, readTVar, modifyTVar )+import Control.Exception ( SomeException, handle, bracket, throwIO )+import System.Locale ( defaultTimeLocale )+import Data.MessagePack ( Packable, pack )+import Data.Int ( Int64 )++-- | Fluent logger settings+--+-- Since 0.1.0.0+--+data FluentSettings =+    FluentSettings+    { fluentSettingsTag :: BS.ByteString+    , fluentSettingsHost :: BS.ByteString+    , fluentSettingsPort :: Int+    , fluentSettingsTimeout :: Double+    , fluentSettingsBufferLimit :: Int64+    }++-- | Default fluent logger settings+--+-- Since 0.1.0.0+--+defaultFluentSettings :: FluentSettings+defaultFluentSettings =+    FluentSettings+    { fluentSettingsTag = BS.empty+    , fluentSettingsHost = "localhost"+    , fluentSettingsPort = 24224+    , fluentSettingsTimeout = 3.0+    , fluentSettingsBufferLimit = 1024*1024+    }++-- | Fluent logger+--+-- Since 0.1.0.0+--+data FluentLogger =+    FluentLogger+    { fluentLoggerChan :: TChan LBS.ByteString+    , fluentLoggerBuffered :: TVar Int64+    , fluentLoggerSettings :: FluentSettings+    , fluentLoggerThread :: ThreadId+    }++getSocket :: BS.ByteString -> Int -> Int64 -> IO NS.Socket+getSocket host port timeout = do+  let hints = NS.defaultHints { NS.addrFlags = [NS.AI_ADDRCONFIG]+                              , NS.addrSocketType = NS.Stream+                              }+  (addr:_) <- NS.getAddrInfo (Just hints) (Just $ unpack host) (Just $ show port)+  sock <- NS.socket (NS.addrFamily addr) (NS.addrSocketType addr) (NS.addrProtocol addr)+  setRecvTimeout sock timeout+  setSendTimeout sock timeout+  let onErr :: SomeException -> IO a+      onErr e = NS.sClose sock >> throwIO e+  handle onErr $ do+    NS.connect sock $ NS.addrAddress addr+    return sock++sender :: FluentLogger -> IO ()+sender logger = forever $ connectFluent logger >>= sendFluent logger++connectFluent :: FluentLogger -> IO NS.Socket+connectFluent logger = handle (retry logger) (getSocket host port timeout)+    where+      host = fluentSettingsHost $ fluentLoggerSettings logger+      port = fluentSettingsPort $ fluentLoggerSettings logger+      timeout = round $ fluentSettingsTimeout (fluentLoggerSettings logger) * 1000000+      retry :: FluentLogger -> SomeException -> IO NS.Socket+      retry = const . connectFluent++sendFluent :: FluentLogger -> NS.Socket -> IO ()+sendFluent logger sock = handle (done sock) $ do+                           entry <- atomically $ peekTChan chan+                           sendAll sock entry+                           atomically $ do+                             void $ readTChan chan+                             modifyTVar buffered (subtract $ LBS.length entry)+                           sendFluent logger sock+    where+      chan = fluentLoggerChan logger+      buffered = fluentLoggerBuffered logger+      done :: NS.Socket -> SomeException -> IO ()+      done = const . NS.sClose++-- | Create a fluent logger+--+-- Since 0.1.0.0+--+newFluentLogger :: FluentSettings -> IO FluentLogger+newFluentLogger set = do+  tchan <- newTChanIO+  tvar <- newTVarIO 0+  let mkLogger tid = FluentLogger { fluentLoggerChan = tchan+                                  , fluentLoggerBuffered = tvar+                                  , fluentLoggerSettings = set+                                  , fluentLoggerThread = tid+                                  }+  rec logger <- mkLogger <$> forkIO (sender logger)+  return logger++-- | Close logger+--+-- Since 0.1.0.0+--+closeFluentLogger :: FluentLogger -> IO ()+closeFluentLogger = killThread . fluentLoggerThread++-- | Create a fluent logger and run given action.+--+-- Since 0.1.0.0+--+withFluentLogger :: FluentSettings -> (FluentLogger -> IO a) -> IO a+withFluentLogger set = bracket (newFluentLogger set) closeFluentLogger++getCurrentEpochTime :: IO Int+getCurrentEpochTime =+    read . formatTime defaultTimeLocale "%s" <$> getCurrentTime++-- | Post a message.+--+-- Since 0.1.0.0+--+post :: Packable a => FluentLogger -> BS.ByteString -> a -> IO ()+post logger label obj = do+  time <- getCurrentEpochTime+  postWithTime logger label time obj++-- | Post a message with given time.+--+-- Since 0.1.0.0+--+postWithTime :: Packable a => FluentLogger -> BS.ByteString -> Int -> a -> IO ()+postWithTime logger label time obj = atomically $ do+                                       s <- readTVar buffered+                                       when (s + len <= limit) $ do+                                         writeTChan chan entry+                                         modifyTVar buffered (+ len)+  where+    tag = fluentSettingsTag $ fluentLoggerSettings logger+    lbl = if BS.null label then tag else mconcat [ tag, ".", label ]+    entry = pack ( lbl, time, obj )+    len = LBS.length entry+    chan = fluentLoggerChan logger+    buffered = fluentLoggerBuffered logger+    limit = fluentSettingsBufferLimit $ fluentLoggerSettings logger
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ benchmark/benchmark.hs view
@@ -0,0 +1,14 @@+{-# LANGUAGE OverloadedStrings #-}+import Network.Fluent.Logger+import Criterion.Main++set :: FluentSettings+set = defaultFluentSettings { fluentSettingsTag = "debug"+                            , fluentSettingsHost = "127.0.0.1"+                            }++main :: IO ()+main = withFluentLogger set $ \logger -> do+         defaultMain [ bgroup "post" [ bench "1 to 1000" $ nfIO $ mapM_ (post logger "loop") [1..1000::Int]+                                     ]+                     ]
+ fluent-logger.cabal view
@@ -0,0 +1,56 @@+name:                fluent-logger+version:             0.1.0.0+synopsis:            A structured logger for Fluentd (Haskell)+description:         A structured logger for Fluentd (Haskell) <http://fluentd.org/>+license:             OtherLicense+license-file:        LICENSE+author:              Noriyuki OHKAWA <n.ohkawa@gmail.com>+maintainer:          Noriyuki OHKAWA <n.ohkawa@gmail.com>+copyright:           Copyright (c) 2012, Noriyuki OHKAWA+category:            Network+build-type:          Simple+cabal-version:       >=1.8+tested-with:         GHC ==7.4.2++source-repository head+  type:                git+  location:            https://github.com/notogawa/fluent-logger-haskell.git++library+  exposed-modules:     Network.Fluent.Logger+  ghc-options:         -Wall+  build-depends:       base ==4.*+                     , bytestring+                     , network >=2.3.0.13 && <2.5+                     , network-socket-options >=0.1 && <0.3+                     , time >=1.2.0.3+                     , old-locale+                     , msgpack >=0.7.1 && <0.8+                     , stm >=2.3++test-suite fluent-logger-spec+  hs-source-dirs:      test+  type:                exitcode-stdio-1.0+  main-is:             Spec.hs+  other-modules:       MockServer+                     , Network.Fluent.LoggerSpec+  build-depends:       base ==4.*+                     , fluent-logger+                     , network+                     , msgpack+                     , network-conduit+                     , conduit+                     , bytestring+                     , transformers+                     , hspec+                     , attoparsec+                     , old-locale+                     , time++benchmark fluent-logger-benchmark+  hs-source-dirs:      benchmark+  type:                exitcode-stdio-1.0+  main-is:             benchmark.hs+  build-depends:       base ==4.*+                     , fluent-logger+                     , criterion
+ test/MockServer.hs view
@@ -0,0 +1,68 @@+{-# LANGUAGE OverloadedStrings #-}+module MockServer+    (+      MockServer+    , mockServerHost+    , mockServerPort+    , withMockServer+    , recvMockServer+    ) where++import Data.Conduit+import Data.Conduit.Network+import Data.ByteString ( ByteString )+import Control.Concurrent+import Control.Monad.IO.Class+import Control.Exception+import Data.MessagePack ( Unpackable, get )+import Data.Attoparsec+import Data.Monoid++data MockServer a = MockServer { mockServerChan :: Chan a+                               , mockServerThread :: ThreadId+                               }++mockServerHost :: ByteString+mockServerHost = "127.0.0.1"++mockServerPort :: Int+mockServerPort = 24224++mockServerSettings :: ServerSettings IO+mockServerSettings = serverSettings mockServerPort HostAny++app :: (MonadIO m, Unpackable a) => Chan a -> AppData m -> m ()+app chan ad = appSource ad $$ sinkChan chan ""++sinkChan :: (MonadIO m, Unpackable a) => Chan a -> ByteString -> Sink ByteString m ()+sinkChan chan carry = do+  mx <- await+  case mx of+    Nothing -> return ()+    Just x  -> parseAsPossible chan (carry <> x) >>= sinkChan chan++parseAsPossible :: (MonadIO m, Unpackable a) => Chan a -> ByteString -> m ByteString+parseAsPossible chan src =+    case parse get src of+      Done t r -> liftIO (writeChan chan r) >> parseAsPossible chan t+      _ -> return src++withMockServer :: Unpackable a => (MockServer a -> IO ()) -> IO ()+withMockServer = bracket runMockServer stopMockServer++recvMockServer :: Unpackable a => MockServer a -> IO a+recvMockServer server = readChan (mockServerChan server)++runMockServer :: Unpackable a => IO (MockServer a)+runMockServer = do+  chan <- newChan+  tid <- forkIO $ runTCPServer mockServerSettings $ app chan+  threadDelay 10000+  return MockServer { mockServerChan = chan+                    , mockServerThread = tid+                    }++stopMockServer :: Unpackable a => MockServer a -> IO ()+stopMockServer server = do+  killThread $ mockServerThread server+  threadDelay 10000
+ test/Network/Fluent/LoggerSpec.hs view
@@ -0,0 +1,114 @@+{-# LANGUAGE OverloadedStrings #-}+module Network.Fluent.LoggerSpec ( spec ) where++import Control.Applicative+import Control.Concurrent+import Control.Monad+import Data.ByteString ( ByteString )+import Data.MessagePack+import Data.Time ( getCurrentTime, formatTime )+import System.Locale ( defaultTimeLocale )+import Test.Hspec++import Network.Fluent.Logger+import MockServer++spec :: Spec+spec = do+  describe "post" $ do+    it "posts a message" postPostsMessage+    it "keeps message order" postKeepsMessageOrder+    it "buffers message if server down" postBuffersMessageIfServerDown+    -- it "buffers message if lost connection" postBuffersMessageIfLostConnection+    -- it "losts message if buffer is over" postLostsMessageIfBufferIsOver+  describe "postWithTime" $ do+    it "posts a message with given time" postWithTimePostsMessageWithGivenTime+++postSettings =+    defaultFluentSettings { fluentSettingsTag = "post"+                          , fluentSettingsHost = mockServerHost+                          , fluentSettingsPort = mockServerPort+                          }++postWithTimeSettings =+    defaultFluentSettings { fluentSettingsTag = "postWithTime"+                          , fluentSettingsHost = mockServerHost+                          , fluentSettingsPort = mockServerPort+                          }++getCurrentEpochTime :: IO Int+getCurrentEpochTime =+    read . formatTime defaultTimeLocale "%s" <$> getCurrentTime++postPostsMessage :: IO ()+postPostsMessage =+    withFluentLogger postSettings $ \logger -> do+      let label = "PostsMessage"+      withMockServer $ \server -> do+        preTime <- getCurrentEpochTime+        post logger label ( "test" :: String )+        postTime <- getCurrentEpochTime+        (tag, time, content) <- recvMockServer server :: IO (ByteString, Int, String)+        tag `shouldBe` "post.PostsMessage"+        content `shouldBe` "test"++postKeepsMessageOrder :: IO ()+postKeepsMessageOrder =+    withFluentLogger postSettings $ \logger -> do+      let label = "KeepsMessageOrder"+      withMockServer $ \server -> do+        let xs = [1..1024::Int]+        mapM_ (post logger label) xs+        forM_ xs $ \n -> do+          (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+          content `shouldBe` n++postBuffersMessageIfServerDown :: IO ()+postBuffersMessageIfServerDown =+    withFluentLogger postSettings $ \logger -> do+      let label = "BuffersMessageIfServerDown"+      post logger label ( 1 :: Int )+      withMockServer $ \server -> do+        post logger label ( 2 :: Int )+        (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+        content `shouldBe` 1+        (_, _, content) <- recvMockServer server+        content `shouldBe` 2++postBuffersMessageIfLostConnection :: IO ()+postBuffersMessageIfLostConnection =+    withFluentLogger postSettings $ \logger -> do+      let label = "BuffersMessageIfLostConnection"+      withMockServer $ \server -> do+        post logger label ( 1 :: Int )+        (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+        content `shouldBe` 1+      post logger label ( 2 :: Int )+      withMockServer $ \server -> do+        post logger label ( 3 :: Int )+        (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+        content `shouldBe` 2+        (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+        content `shouldBe` 3++postLostsMessageIfBufferIsOver :: IO ()+postLostsMessageIfBufferIsOver =+    withFluentLogger postSettings $ \logger -> do+      let label = "LostsMessageIfBufferIsOver"+      post logger label ( 1 :: Int )+      withMockServer $ \server -> do+        post logger label ( 2 :: Int )+        (_, _, content) <- recvMockServer server :: IO (ByteString, Int, Int)+        content `shouldBe` 2++postWithTimePostsMessageWithGivenTime :: IO ()+postWithTimePostsMessageWithGivenTime =+    withFluentLogger postWithTimeSettings $ \logger -> do+      let label = "PostsMessageWithGivenTime"+      withMockServer $ \server -> do+        postWithTime logger label 123456 ( "test" :: String )+        (tag, time, content) <- recvMockServer server :: IO (ByteString, Int, String)+        tag `shouldBe` "postWithTime.PostsMessageWithGivenTime"+        time `shouldBe` 123456+        content `shouldBe` "test"
+ test/Spec.hs view
@@ -0,0 +1,1 @@+{-# OPTIONS_GHC -F -pgmF cabal-dev/bin/hspec-discover #-}