root / Ganeti / HTools / Simu.hs @ f4c0b8c5
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1 | b2278348 | Iustin Pop | {-| Parsing data from a simulated description of the cluster |
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2 | b2278348 | Iustin Pop | |
3 | b2278348 | Iustin Pop | This module holds the code for parsing a cluster description. |
4 | b2278348 | Iustin Pop | |
5 | b2278348 | Iustin Pop | -} |
6 | b2278348 | Iustin Pop | |
7 | b2278348 | Iustin Pop | {- |
8 | b2278348 | Iustin Pop | |
9 | b2278348 | Iustin Pop | Copyright (C) 2009 Google Inc. |
10 | b2278348 | Iustin Pop | |
11 | b2278348 | Iustin Pop | This program is free software; you can redistribute it and/or modify |
12 | b2278348 | Iustin Pop | it under the terms of the GNU General Public License as published by |
13 | b2278348 | Iustin Pop | the Free Software Foundation; either version 2 of the License, or |
14 | b2278348 | Iustin Pop | (at your option) any later version. |
15 | b2278348 | Iustin Pop | |
16 | b2278348 | Iustin Pop | This program is distributed in the hope that it will be useful, but |
17 | b2278348 | Iustin Pop | WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | b2278348 | Iustin Pop | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
19 | b2278348 | Iustin Pop | General Public License for more details. |
20 | b2278348 | Iustin Pop | |
21 | b2278348 | Iustin Pop | You should have received a copy of the GNU General Public License |
22 | b2278348 | Iustin Pop | along with this program; if not, write to the Free Software |
23 | b2278348 | Iustin Pop | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
24 | b2278348 | Iustin Pop | 02110-1301, USA. |
25 | b2278348 | Iustin Pop | |
26 | b2278348 | Iustin Pop | -} |
27 | b2278348 | Iustin Pop | |
28 | b2278348 | Iustin Pop | module Ganeti.HTools.Simu |
29 | b2278348 | Iustin Pop | ( |
30 | b2278348 | Iustin Pop | loadData |
31 | b2278348 | Iustin Pop | ) where |
32 | b2278348 | Iustin Pop | |
33 | b2278348 | Iustin Pop | import Text.Printf (printf) |
34 | b2278348 | Iustin Pop | |
35 | b2278348 | Iustin Pop | import Ganeti.HTools.Utils |
36 | b2278348 | Iustin Pop | import Ganeti.HTools.Types |
37 | b2278348 | Iustin Pop | import qualified Ganeti.HTools.Node as Node |
38 | b2278348 | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
39 | b2278348 | Iustin Pop | |
40 | b2278348 | Iustin Pop | -- | Parse the string description into nodes |
41 | b2278348 | Iustin Pop | parseDesc :: String -> Result (Int, Int, Int, Int) |
42 | b2278348 | Iustin Pop | parseDesc desc = |
43 | b2278348 | Iustin Pop | case sepSplit ',' desc of |
44 | 7f4e37f0 | Iustin Pop | [n, d, m, c] -> do |
45 | b2278348 | Iustin Pop | ncount <- tryRead "node count" n |
46 | b2278348 | Iustin Pop | disk <- tryRead "disk size" d |
47 | b2278348 | Iustin Pop | mem <- tryRead "memory size" m |
48 | b2278348 | Iustin Pop | cpu <- tryRead "cpu count" c |
49 | b2278348 | Iustin Pop | return (ncount, disk, mem, cpu) |
50 | b2278348 | Iustin Pop | _ -> fail "Invalid cluster specification" |
51 | b2278348 | Iustin Pop | |
52 | b2278348 | Iustin Pop | -- | Builds the cluster data from node\/instance files. |
53 | b2278348 | Iustin Pop | loadData :: String -- ^ Cluster description in text format |
54 | 94e05c32 | Iustin Pop | -> IO (Result (Node.AssocList, Instance.AssocList, [String])) |
55 | b2278348 | Iustin Pop | loadData ndata = -- IO monad, just for consistency with the other loaders |
56 | b2278348 | Iustin Pop | return $ do |
57 | b2278348 | Iustin Pop | (cnt, disk, mem, cpu) <- parseDesc ndata |
58 | b2278348 | Iustin Pop | let nodes = map (\idx -> |
59 | b2278348 | Iustin Pop | let n = Node.create (printf "node%03d" idx) |
60 | b2278348 | Iustin Pop | (fromIntegral mem) 0 mem |
61 | b2278348 | Iustin Pop | (fromIntegral disk) disk |
62 | b2278348 | Iustin Pop | (fromIntegral cpu) False |
63 | b2278348 | Iustin Pop | in (idx, Node.setIdx n idx) |
64 | b2278348 | Iustin Pop | ) [1..cnt] |
65 | 94e05c32 | Iustin Pop | return (nodes, [], []) |