htools: introduce new data type for node-evac

[ganeti-local] / htools / Ganeti / HTools / Rapi.hs

diff --git a/htools/Ganeti/HTools/Rapi.hs b/htools/Ganeti/HTools/Rapi.hs
index 936fc44..19a3a20 100644 (file)
--- a/htools/Ganeti/HTools/Rapi.hs
+++ b/htools/Ganeti/HTools/Rapi.hs
@@ -37,7 +37,7 @@ import Network.Curl
 import Network.Curl.Types ()
 #endif
 import Control.Monad
-import Text.JSON (JSObject, JSValue, fromJSObject, decodeStrict)
+import Text.JSON (JSObject, fromJSObject, decodeStrict)
 import Text.JSON.Types (JSValue(..))
 import Text.Printf (printf)
 
@@ -47,6 +47,7 @@ import Ganeti.HTools.Types
 import qualified Ganeti.HTools.Group as Group
 import qualified Ganeti.HTools.Node as Node
 import qualified Ganeti.HTools.Instance as Instance
+import qualified Ganeti.Constants as C
 
 -- | Read an URL via curl and return the body if successful.
 getUrl :: (Monad m) => String -> IO (m String)
@@ -56,7 +57,7 @@ getUrl _ = return $ fail "RAPI/curl backend disabled at compile time"
 
 #else
 
--- | The curl options we use
+-- | The curl options we use.
 curlOpts :: [CurlOption]
 curlOpts = [ CurlSSLVerifyPeer False
            , CurlSSLVerifyHost 0
@@ -76,7 +77,7 @@ getUrl url = do
 formatHost :: String -> String
 formatHost master =
     if ':' `elem` master then  master
-    else "https://" ++ master ++ ":5080"
+    else "https://" ++ master ++ ":" ++ show C.defaultRapiPort
 
 -- | Parse a instance list in JSON format.
 getInstances :: NameAssoc
@@ -96,6 +97,7 @@ getGroups :: String -> Result [(String, Group.Group)]
 getGroups body = loadJSArray "Parsing group data" body >>=
                 mapM (parseGroup . fromJSObject)
 
+-- | Generates a fake group list.
 getFakeGroups :: Result [(String, Group.Group)]
 getFakeGroups =
   return [(defaultGroupID,
@@ -103,11 +105,11 @@ getFakeGroups =
 
 -- | Construct an instance from a JSON object.
 parseInstance :: NameAssoc
-              -> [(String, JSValue)]
+              -> JSRecord
               -> Result (String, Instance.Instance)
 parseInstance ktn a = do
   name <- tryFromObj "Parsing new instance" a "name"
-  let owner_name = "Instance '" ++ name ++ "'"
+  let owner_name = "Instance '" ++ name ++ "', error while parsing data"
   let extract s x = tryFromObj owner_name x s
   disk <- extract "disk_usage" a
   beparams <- liftM fromJSObject (extract "beparams" a)
@@ -128,10 +130,10 @@ parseInstance ktn a = do
   return (name, inst)
 
 -- | Construct a node from a JSON object.
-parseNode :: NameAssoc -> [(String, JSValue)] -> Result (String, Node.Node)
+parseNode :: NameAssoc -> JSRecord -> Result (String, Node.Node)
 parseNode ktg a = do
   name <- tryFromObj "Parsing new node" a "name"
-  let desc = "Node '" ++ name ++ "'"
+  let desc = "Node '" ++ name ++ "', error while parsing data"
       extract s = tryFromObj desc a s
   offline <- extract "offline"
   drained <- extract "drained"
@@ -153,7 +155,7 @@ parseNode ktg a = do
   return (name, node)
 
 -- | Construct a group from a JSON object.
-parseGroup :: [(String, JSValue)] -> Result (String, Group.Group)
+parseGroup :: JSRecord -> Result (String, Group.Group)
 parseGroup a = do
   name <- tryFromObj "Parsing new group" a "name"
   let extract s = tryFromObj ("Group '" ++ name ++ "'") a s
@@ -172,7 +174,7 @@ readData master = do
   tags_body <- getUrl $ printf "%s/2/tags" url
   return (group_body, node_body, inst_body, tags_body)
 
--- | Builds the cluster data from the raw Rapi content
+-- | Builds the cluster data from the raw Rapi content.
 parseData :: (Result String, Result String, Result String, Result String)
           -> Result ClusterData
 parseData (group_body, node_body, inst_body, tags_body) = do
@@ -190,7 +192,7 @@ parseData (group_body, node_body, inst_body, tags_body) = do
   tags_data <- tags_body >>= (fromJResult "Parsing tags data" . decodeStrict)
   return (ClusterData group_idx node_idx inst_idx tags_data)
 
--- | Top level function for data loading
+-- | Top level function for data loading.
 loadData :: String -- ^ Cluster or URL to use as source
          -> IO (Result ClusterData)
 loadData = fmap parseData . readData