(
parseData
, formatResponse
+ , RqType(..)
+ , Request(..)
) where
import Data.Either ()
-import Data.Maybe
+--import Data.Maybe
import Control.Monad
import Text.JSON (JSObject, JSValue(JSBool, JSString, JSArray),
makeObj, encodeStrict, decodeStrict,
fromJSObject, toJSString)
-import Text.Printf (printf)
-import Ganeti.HTools.Utils
+--import Text.Printf (printf)
import qualified Ganeti.HTools.Node as Node
import qualified Ganeti.HTools.Instance as Instance
+import Ganeti.HTools.Loader
+import Ganeti.HTools.Utils
+import Ganeti.HTools.Types
data RqType
- = Allocate
- | Relocate
- deriving (Eq, Show)
+ = Allocate Instance.Instance Int
+ | Relocate Int Int [Int]
+ deriving (Show)
-data Request
- = RqAlloc String String String
- | RqReloc String String String
+data Request = Request RqType NodeList InstanceList String
+ deriving (Show)
-parseInstance :: String -> JSObject JSValue -> Result String
-parseInstance n a =
- let name = Ok n
- disk = case getIntElement "disk_usage" a of
- Bad _ -> let all_d = getListElement "disks" a >>= asObjectList
- szd = all_d >>=
- (sequence .
- map (getIntElement "size"))
- sze = liftM (map (+128)) szd
- szf = liftM sum sze
- in szf
- x@(Ok _) -> x
- nodes = getListElement "nodes" a
- pnode = liftM head nodes >>= readEitherString
- snode = liftM (head . tail) nodes >>= readEitherString
- mem = getIntElement "memory" a
- running = Ok "running" --getStringElement "status" a
- in
- name |+ (show `liftM` mem) |+
- (show `liftM` disk) |+ running |+ pnode |+ snode
+parseBaseInstance :: String
+ -> JSObject JSValue
+ -> Result (String, Instance.Instance)
+parseBaseInstance n a = do
+ disk <- case fromObj "disk_usage" a of
+ Bad _ -> do
+ all_d <- fromObj "disks" a >>= asObjectList
+ szd <- mapM (fromObj "size") all_d
+ let sze = map (+128) szd
+ szf = (sum sze)::Int
+ return szf
+ x@(Ok _) -> x
+ mem <- fromObj "memory" a
+ let running = "running"
+ return $ (n, Instance.create n mem disk running 0 0)
-parseNode :: String -> JSObject JSValue -> Result String
-parseNode n a =
- let name = Ok n
- mtotal = getIntElement "total_memory" a
- mnode = getIntElement "reserved_memory" a
- mfree = getIntElement "free_memory" a
- dtotal = getIntElement "total_disk" a
- dfree = getIntElement "free_disk" a
- in name |+ (show `liftM` mtotal) |+
- (show `liftM` mnode) |+
- (show `liftM` mfree) |+
- (show `liftM` dtotal) |+
- (show `liftM` dfree)
+parseInstance :: NameAssoc
+ -> String
+ -> JSObject JSValue
+ -> Result (String, Instance.Instance)
+parseInstance ktn n a = do
+ base <- parseBaseInstance n a
+ nodes <- fromObj "nodes" a
+ pnode <- readEitherString $ head nodes
+ pidx <- lookupNode ktn n pnode
+ let snodes = tail nodes
+ sidx <- (if null snodes then return Node.noSecondary
+ else (readEitherString $ head snodes) >>= lookupNode ktn n)
+ return (n, Instance.setBoth (snd base) pidx sidx)
-validateRequest :: String -> Result RqType
-validateRequest rq =
- case rq of
- "allocate" -> Ok Allocate
- "relocate" -> Ok Relocate
- _ -> Bad ("Invalid request type '" ++ rq ++ "'")
+parseNode :: String -> JSObject JSValue -> Result (String, Node.Node)
+parseNode n a = do
+ let name = n
+ mtotal <- fromObj "total_memory" a
+ mnode <- fromObj "reserved_memory" a
+ mfree <- fromObj "free_memory" a
+ dtotal <- fromObj "total_disk" a
+ dfree <- fromObj "free_disk" a
+ offline <- fromObj "offline" a
+ drained <- fromObj "drained" a
+ return $ (name, Node.create n mtotal mnode mfree dtotal dfree
+ (offline || drained))
parseData :: String -> Result Request
-parseData body =
- do
- decoded <- fromJResult $ decodeStrict body
- let obj = decoded -- decoded `combineEithers` fromJSObject
- -- request parser
- request <- getObjectElement "request" obj
- rname <- getStringElement "name" request
- rtype <- getStringElement "type" request >>= validateRequest
- inew <- (\x -> if x == Allocate then parseInstance rname request
- else Ok "") rtype
- -- existing intstance parsing
- ilist <- getObjectElement "instances" obj
- let idata = fromJSObject ilist
- iobj <- (sequence . map (\(x,y) -> asJSObject y >>= parseInstance x))
- idata
- let ilines = unlines iobj
- -- existing node parsing
- nlist <- getObjectElement "nodes" obj
- let ndata = fromJSObject nlist
- nobj <- (sequence . map (\(x,y) -> asJSObject y >>= parseNode x))
- ndata
- let nlines = unlines nobj
- return $ (\ r nl il inew rnam ->
- case r of
- Allocate -> RqAlloc inew nl il
- Relocate -> RqReloc rnam nl il)
- rtype nlines ilines inew rname
-
+parseData body = do
+ decoded <- fromJResult $ decodeStrict body
+ let obj = decoded
+ -- request parser
+ request <- fromObj "request" obj
+ rname <- fromObj "name" request
+ -- existing node parsing
+ nlist <- fromObj "nodes" obj
+ let ndata = fromJSObject nlist
+ nobj <- (mapM (\(x,y) -> asJSObject y >>= parseNode x)) ndata
+ let (ktn, nl) = assignIndices nobj
+ -- existing instance parsing
+ ilist <- fromObj "instances" obj
+ let idata = fromJSObject ilist
+ iobj <- (mapM (\(x,y) -> asJSObject y >>= parseInstance ktn x)) idata
+ let (kti, il) = assignIndices iobj
+ (map_n, map_i, csf) <- mergeData (nl, il)
+ req_nodes <- fromObj "required_nodes" request
+ optype <- fromObj "type" request
+ rqtype <-
+ case optype of
+ "allocate" ->
+ do
+ inew <- parseBaseInstance rname request
+ let io = snd inew
+ return $ Allocate io req_nodes
+ "relocate" ->
+ do
+ ridx <- lookupNode kti rname rname
+ ex_nodes <- fromObj "relocate_from" request
+ let ex_nodes' = map (stripSuffix $ length csf) ex_nodes
+ ex_idex <- mapM (findByName map_n) ex_nodes'
+ return $ Relocate ridx req_nodes ex_idex
+ other -> fail $ ("Invalid request type '" ++ other ++ "'")
+ return $ Request rqtype map_n map_i csf
formatResponse :: Bool -> String -> [String] -> String
formatResponse success info nodes =
projects / ganeti-local / blobdiff