import qualified Ganeti.HTools.Node as Node
import qualified Ganeti.HTools.Instance as Instance
+-- | Parse results from readsPrec
+parseChoices :: (Monad m, Read a) => String -> String -> [(a, String)] -> m a
+parseChoices _ _ ((v, ""):[]) = return v
+parseChoices name s ((_, e):[]) =
+ fail $ name ++ ": leftover characters when parsing '"
+ ++ s ++ "': '" ++ e ++ "'"
+parseChoices name s _ = fail $ name ++ ": cannot parse string '" ++ s ++ "'"
+
-- | Safe 'read' function returning data encapsulated in a Result.
tryRead :: (Monad m, Read a) => String -> String -> m a
-tryRead name s =
- let sols = readsPrec 0 s
- in case sols of
- (v, ""):[] -> return v
- (_, e):[] -> fail $ name ++ ": leftover characters when parsing '"
- ++ s ++ "': '" ++ e ++ "'"
- _ -> fail $ name ++ ": cannot parse string '" ++ s ++ "'"
+tryRead name s = parseChoices name s $ reads s
-- | Load a node from a field list.
loadNode :: (Monad m) => [String] -> m (String, Node.Node)
-loadNode (name:tm:nm:fm:td:fd:fo:[]) = do
+loadNode (name:tm:nm:fm:td:fd:tc:fo:[]) = do
new_node <-
- if any (== "?") [tm,nm,fm,td,fd] || fo == "Y" then
- return $ Node.create name 0 0 0 0 0 True
+ if any (== "?") [tm,nm,fm,td,fd,tc] || fo == "Y" then
+ return $ Node.create name 0 0 0 0 0 0 True
else do
vtm <- tryRead name tm
vnm <- tryRead name nm
vfm <- tryRead name fm
vtd <- tryRead name td
vfd <- tryRead name fd
- return $ Node.create name vtm vnm vfm vtd vfd False
+ vtc <- tryRead name tc
+ return $ Node.create name vtm vnm vfm vtd vfd vtc False
return (name, new_node)
-loadNode s = fail $ "Invalid/incomplete node data: '" ++ (show s) ++ "'"
+loadNode s = fail $ "Invalid/incomplete node data: '" ++ show s ++ "'"
-- | Load an instance from a field list.
loadInst :: (Monad m) =>
" has same primary and secondary node - " ++ pnode
let newinst = Instance.create name vmem vdsk vvcpus status pidx sidx
return (name, newinst)
-loadInst _ s = fail $ "Invalid/incomplete instance data: '" ++ (show s) ++ "'"
+loadInst _ s = fail $ "Invalid/incomplete instance data: '" ++ show s ++ "'"
-- | Convert newline and delimiter-separated text.
--