{-| Parsing data from a simulated description of the cluster This module holds the code for parsing a cluster description. -} {- Copyright (C) 2009 Google Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -} module Ganeti.HTools.Simu ( loadData ) where import Text.Printf (printf) import Ganeti.HTools.Utils import Ganeti.HTools.Types import qualified Ganeti.HTools.Node as Node import qualified Ganeti.HTools.Instance as Instance -- | Parse the string description into nodes parseDesc :: String -> Result (Int, Int, Int, Int) parseDesc desc = case sepSplit ',' desc of [n, d, m, c] -> do ncount <- tryRead "node count" n disk <- tryRead "disk size" d mem <- tryRead "memory size" m cpu <- tryRead "cpu count" c return (ncount, disk, mem, cpu) _ -> fail "Invalid cluster specification" -- | Builds the cluster data from node\/instance files. loadData :: String -- ^ Cluster description in text format -> IO (Result (Node.AssocList, Instance.AssocList, [String])) loadData ndata = -- IO monad, just for consistency with the other loaders return $ do (cnt, disk, mem, cpu) <- parseDesc ndata let nodes = map (\idx -> let n = Node.create (printf "node%03d" idx) (fromIntegral mem) 0 mem (fromIntegral disk) disk (fromIntegral cpu) False in (idx, Node.setIdx n idx) ) [1..cnt] return (nodes, [], [])