1 {-| Module describing a node group.
7 Copyright (C) 2010 Google Inc.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
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15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
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21 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 module Ganeti.HTools.Group
35 import qualified Ganeti.HTools.Container as Container
37 import qualified Ganeti.HTools.Types as T
39 -- * Type declarations
41 -- | The node group type.
43 { name :: String -- ^ The node name
44 , uuid :: T.GroupID -- ^ The UUID of the group
45 , idx :: T.Gdx -- ^ Internal index for book-keeping
46 , allocPolicy :: T.AllocPolicy -- ^ The allocation policy for this group
47 } deriving (Show, Read, Eq)
49 -- Note: we use the name as the alias, and the UUID as the official
51 instance T.Element Group where
56 allNames n = [name n, uuid n]
58 -- | A simple name for the int, node association list.
59 type AssocList = [(T.Gdx, Group)]
61 -- | A simple name for a node map.
62 type List = Container.Container Group
64 -- * Initialization functions
66 -- | Create a new group.
67 create :: String -> T.GroupID -> T.AllocPolicy -> Group
68 create name_init id_init apol_init =
69 Group { name = name_init
71 , allocPolicy = apol_init
75 -- This is used only during the building of the data structures.
76 setIdx :: Group -> T.Gdx -> Group
77 setIdx t i = t {idx = i}
79 -- | Changes the alias.
81 -- This is used only during the building of the data structures.
82 setName :: Group -> String -> Group
83 setName t s = t { name = s }