ganeti-htools Source code Contents Index

Ganeti.HTools.Luxi

Contents Utility functions Data querying functionality Main loader functionality

Description

Implementation of the LUXI loader.

Synopsis

toArray :: Monad m => JSValue -> m [JSValue] genericConvert :: JSON a => String -> String -> String -> JSValue -> Result a queryNodesMsg :: LuxiOp queryInstancesMsg :: LuxiOp queryClusterInfoMsg :: LuxiOp queryGroupsMsg :: LuxiOp queryNodes :: Client -> IO (Result JSValue) queryInstances :: Client -> IO (Result JSValue) queryClusterInfo :: Client -> IO (Result JSValue) queryGroups :: Client -> IO (Result JSValue) getInstances :: NameAssoc -> JSValue -> Result [(String, Instance)] parseInstance :: NameAssoc -> JSValue -> Result (String, Instance) getNodes :: NameAssoc -> JSValue -> Result [(String, Node)] parseNode :: NameAssoc -> JSValue -> Result (String, Node) getClusterTags :: JSValue -> Result [String] getGroups :: JSValue -> Result [(String, Group)] parseGroup :: JSValue -> Result (String, Group) readData :: String -> IO (Result JSValue, Result JSValue, Result JSValue, Result JSValue) parseData :: (Result JSValue, Result JSValue, Result JSValue, Result JSValue) -> Result ClusterData loadData :: String -> IO (Result ClusterData)

Utility functions

toArray :: Monad m => JSValue -> m [JSValue] Source

Ensure a given JSValue is actually a JSArray.

genericConvert Source

:: JSON a => String The object name -> String The attribute we're trying to convert -> String The value we try to convert -> JSValue The annotated result -> Result a Annotate errors when converting values with owner/attribute for better debugging.

Data querying functionality

queryNodesMsg :: LuxiOp Source

The input data for node query.

queryInstancesMsg :: LuxiOp Source

The input data for instance query.

queryClusterInfoMsg :: LuxiOp Source

The input data for cluster query.

queryGroupsMsg :: LuxiOp Source

The input data for node group query.

queryNodes :: Client -> IO (Result JSValue) Source

Wraper over callMethod doing node query.

queryInstances :: Client -> IO (Result JSValue) Source

Wraper over callMethod doing instance query.

queryClusterInfo :: Client -> IO (Result JSValue) Source

Wrapper over callMethod doing cluster information query.

queryGroups :: Client -> IO (Result JSValue) Source

Wrapper over callMethod doing group query.

getInstances :: NameAssoc -> JSValue -> Result [(String, Instance)] Source

Parse a instance list in JSON format.

parseInstance :: NameAssoc -> JSValue -> Result (String, Instance) Source

Construct an instance from a JSON object.

getNodes :: NameAssoc -> JSValue -> Result [(String, Node)] Source

Parse a node list in JSON format.

parseNode :: NameAssoc -> JSValue -> Result (String, Node) Source

Construct a node from a JSON object.

getClusterTags :: JSValue -> Result [String] Source

Parses the cluster tags.

getGroups :: JSValue -> Result [(String, Group)] Source

Parses the cluster groups.

parseGroup :: JSValue -> Result (String, Group) Source

Parses a given group information.

Main loader functionality

readData Source

:: String Unix socket to use as source -> IO (Result JSValue, Result JSValue, Result JSValue, Result JSValue) Builds the cluster data by querying a given socket name.

parseData :: (Result JSValue, Result JSValue, Result JSValue, Result JSValue) -> Result ClusterData Source

Converts the output of readData into the internal cluster representation.

loadData Source

:: String Unix socket to use as source -> IO (Result ClusterData) Top level function for data loading.

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