splot-0.1.15: Tools/StatePlot.hs
module Main where
import System (getArgs)
import System.Exit
import Control.Monad.Writer
import Control.Monad.State
import qualified Data.Map as M
import Data.List
import Data.Ord
import Data.Function
import Data.Maybe
import Data.Time
import Data.Time.Parse
import qualified Data.ByteString.Char8 as B
import Graphics.Rendering.Chart
import Graphics.Rendering.Chart.Renderable
import Graphics.Rendering.Chart.Gtk
import qualified Graphics.Rendering.Cairo as C
import Data.Colour
import Data.Colour.Names
data Event = Event {time :: LocalTime, track :: String, edge :: Edge} deriving (Show)
data Edge = Begin { color :: String } | End { color :: String } deriving (Show)
data Bar = Bar Double Double String | ExpiredBar Double Double String
getArg :: String -> String -> [String] -> String
getArg name def args = case [(k,v) | (k,v) <- zip args (tail args), k==("-"++name)] of
(_,v):_ -> v
_ -> def
parse :: (B.ByteString -> (LocalTime, B.ByteString)) -> B.ByteString -> Event
parse parseTime s = Event { time = ts, track = B.unpack $ B.tail track', edge = edge }
where
(ts, s') = parseTime s
(track', color) = B.break (==' ') (B.tail s')
clr = if B.null color then "" else B.unpack (B.tail color)
edge = case (B.head track') of
'>' -> Begin clr
'<' -> End clr
diffToMillis :: LocalTime -> LocalTime -> Double
diffToMillis t2 t1 = fromIntegral (truncate (1000000*d)) / 1000
where d = diffUTCTime (localTimeToUTC utc t2) (localTimeToUTC utc t1)
data RenderConfiguration = RenderConf {
barHeight :: Double,
tickIntervalMs :: Double,
expireTimeMs :: Double,
cmpTracks :: Event -> Event -> Ordering,
phantomColor :: Maybe String
}
renderEvents :: RenderConfiguration -> [Event] -> Renderable ()
renderEvents conf es = Renderable {minsize = return (0,0), render = render'}
where
events = sortBy (comparing time) es
minTime = time $ head events
maxTime = time $ last events
time2ms t = diffToMillis t minTime
rangeMs = time2ms maxTime
ticks = takeWhile (<rangeMs) $ iterate (+tickIntervalMs conf) 0
tracks = sortBy (\as bs -> cmpTracks conf (head as) (head bs)) . groupBy ((==) `on` track) . sortBy (comparing track) $ events
maybeM :: (Monad m) => (a -> m b) -> Maybe a -> m ()
maybeM f Nothing = return ()
maybeM f (Just x) = f x >> return ()
bars track = execWriter . (`evalStateT` Nothing) . mapM_ step . prepare $ track
where
prepare t = (capStart t) ++ t ++ (capEnd t)
capEnd t = [Event maxTime undefined (End "")]
capStart t = case (phantomColor conf, t) of
(_, Event _ _ (End c):_) | c /= "" -> [Event minTime undefined (Begin c)]
(Just c, Event _ _ (End _):_) -> [Event minTime undefined (Begin c)]
_ -> []
step (Event t _ edge) = do
let overrideEnd c0 = case edge of { End c | c /= "" -> c ; _ -> c0 }
get >>= maybeM (\(t0,c0) -> tell $ if (time2ms t - time2ms t0 < expireTimeMs conf)
then [Bar (time2ms t0) (time2ms t) (overrideEnd c0)]
else [ExpiredBar (time2ms t0) (time2ms t0 + expireTimeMs conf) (overrideEnd c0)])
put (case edge of { Begin c -> Just (t,c); End _ -> Nothing })
render' (w,h) = do
let ms2x ms = 10 + ms / rangeMs * (w - 10)
let time2x t = ms2x (time2ms t)
let numTracks = length tracks
let yStep = (h-10) / fromIntegral (numTracks+1)
let track2y i = fromIntegral (i+1) * yStep - (barHeight conf)/2
let drawTick ms = do {
setLineStyle $ solidLine 1 (opaque black)
; moveTo $ Point (ms2x ms) (h-10)
; lineTo $ Point (ms2x ms) (h-5)
; c $ C.stroke
}
let drawBar i (Bar ms1 ms2 color) = do {
setLineStyle $ solidLine 1 transparent
; setFillStyle $ solidFillStyle $ opaque $ fromMaybe (error $ "unknown color: " ++ color) (readColourName color)
; fillPath (rectPath $ Rect (Point (ms2x ms1) (track2y i - (barHeight conf)/2)) (Point (ms2x ms2) (track2y i + (barHeight conf)/2)))
}
drawBar i (ExpiredBar ms1 ms2 color) = do {
setLineStyle $ dashedLine 1 [3,3] (opaque $ fromMaybe (error $ "unknown color: " ++ color) (readColourName color))
; strokePath [Point (ms2x ms1) (track2y i), Point (ms2x ms2) (track2y i)]
; setLineStyle $ solidLine 1 (opaque red)
; strokePath [Point (ms2x ms2 - 5) (track2y i - 5), Point (ms2x ms2 + 5) (track2y i + 5)]
; strokePath [Point (ms2x ms2 + 5) (track2y i - 5), Point (ms2x ms2 - 5) (track2y i + 5)]
}
let drawTrack (i, es) = mapM_ (drawBar i) (bars es)
setFillStyle $ solidFillStyle (opaque white)
fillPath $ rectPath $ Rect (Point 0 0) (Point w h)
setLineStyle $ solidLine 1 (opaque black)
moveTo (Point 10 (h-10))
lineTo (Point w (h-10))
c $ C.stroke
moveTo (Point 10 (h-10))
lineTo (Point 10 0)
c $ C.stroke
mapM_ drawTick ticks
mapM_ drawTrack $ zip [0..] tracks
return nullPickFn
showHelp = mapM_ putStrLn [
"splot - a tool for visualizing the lifecycle of many concurrent multi-stage processes. See http://www.haskell.org/haskellwiki/Splot",
"Usage: splot [-o PNGFILE] [-w WIDTH] [-h HEIGHT] [-bh BARHEIGHT] [-tf TIMEFORMAT] [-sort SORT] [-expire EXPIRE]",
" [-tickInterval TICKINTERVAL]",
" -o PNGFILE - filename to which the output will be written in PNG format.",
" If omitted, it will be shown in a window.",
" -w, -h - width and height of the resulting picture. Default 640x480.",
" -bh - height of the bar depicting each individual process. Default 5 pixels.",
" Use 1 or so if you have a lot of them.",
" -tf - time format, as in http://linux.die.net/man/3/strptime but with ",
" fractional seconds supported via %OS - will parse 12.4039 or 12,4039",
" Also, %^[+-][N]s will parse seconds since the epoch, for example ",
" %^-3s are milliseconds since the epoch (N can only be 1 digit)",
" -tickInterval - ticks on the X axis will be this often (in millis).",
" -sort SORT - sort tracks by SORT, where: 'time' - sort by time of first event, ",
" 'name' - sort by track name.",
" -expire - expire activities after given time period (in millis) - for instance,",
" to account that if an activity doesn't tell you it's finished for too long,",
" then it probably was killed.",
" -phantom COL - 'phantom color' - if a track starts from a '<' event, it is assumed that",
" the corresponding '>' event (not present in the log) was of color COL.",
" Useful if you're drawing pieces of large logs.",
"",
"Input is read from stdin. Example input (speaks for itself):",
"2010-10-21 16:45:09,431 >foo green",
"2010-10-21 16:45:09,541 >bar green",
"2010-10-21 16:45:10,631 >foo yellow",
"2010-10-21 16:45:10,725 >foo red",
"2010-10-21 16:45:10,930 >bar blue",
"2010-10-21 16:45:11,322 <foo",
"2010-10-21 16:45:12,508 <bar red",
"",
"'>FOO COLOR' means 'start a bar of color COLOR on track FOO',",
"'<FOO' means 'end the current bar for FOO'.",
"'<FOO COLOR' means 'end the current bar for FOO and make the whole bar of color COLOR'",
"(for example if we found that FOO failed and all the work since >FOO was wasted, COLOR",
"might be red)"
]
main = do
args <- getArgs
case args of
["--help"] -> showHelp >> exitSuccess
_ -> return ()
let (w,h) = (read $ getArg "w" "640" args, read $ getArg "h" "480" args)
let barHeight = read $ getArg "bh" "5" args
let tickIntervalMs = read $ getArg "tickInterval" "10" args
let timeFormat = getArg "tf" "%Y-%m-%d %H:%M:%OS" args
let parseTime s = fromMaybe (error $ "Invalid time: " ++ show s) . strptime (B.pack timeFormat) $ s
let outPNG = getArg "o" "" args
input <- B.getContents
let pruneLF b | not (B.null b) && (B.last b == '\r') = B.init b
| otherwise = b
let events = (parse parseTime . pruneLF) `map` B.lines input
let cmpTracks = case getArg "sort" "time" args of { "time" -> comparing time ; "name" -> comparing track }
let expireTimeMs = read $ getArg "expire" "Infinity" args
let phantomColor = case getArg "phantom" "" args of { "" -> Nothing; c -> Just c }
let pic = renderEvents (RenderConf barHeight tickIntervalMs expireTimeMs cmpTracks phantomColor) events
case outPNG of
"" -> renderableToWindow pic w h
f -> const () `fmap` renderableToPNGFile pic w h outPNG