Safe Haskell	Safe-Inferred
Language	Haskell2010

ZooKeeper.Exception

Contents

System and server-side errors
API Errors
Other Errors
Error number patterns
Helpers

Synopsis

data ZooException
zooExceptionToException :: Exception e => e -> SomeException
zooExceptionFromException :: Exception e => SomeException -> Maybe e
data ZooExInfo = ZooExInfo {
- errDescription :: Text
- errCallStack :: CallStack
}
newtype ZSYSTEMERROR = ZSYSTEMERROR ZooExInfo
newtype ZRUNTIMEINCONSISTENCY = ZRUNTIMEINCONSISTENCY ZooExInfo
newtype ZDATAINCONSISTENCY = ZDATAINCONSISTENCY ZooExInfo
newtype ZCONNECTIONLOSS = ZCONNECTIONLOSS ZooExInfo
newtype ZMARSHALLINGERROR = ZMARSHALLINGERROR ZooExInfo
newtype ZUNIMPLEMENTED = ZUNIMPLEMENTED ZooExInfo
newtype ZOPERATIONTIMEOUT = ZOPERATIONTIMEOUT ZooExInfo
newtype ZBADARGUMENTS = ZBADARGUMENTS ZooExInfo
newtype ZINVALIDSTATE = ZINVALIDSTATE ZooExInfo
newtype ZNEWCONFIGNOQUORUM = ZNEWCONFIGNOQUORUM ZooExInfo
newtype ZRECONFIGINPROGRESS = ZRECONFIGINPROGRESS ZooExInfo
newtype ZSSLCONNECTIONERROR = ZSSLCONNECTIONERROR ZooExInfo
newtype ZAPIERROR = ZAPIERROR ZooExInfo
newtype ZNONODE = ZNONODE ZooExInfo
newtype ZNOAUTH = ZNOAUTH ZooExInfo
newtype ZBADVERSION = ZBADVERSION ZooExInfo
newtype ZNOCHILDRENFOREPHEMERALS = ZNOCHILDRENFOREPHEMERALS ZooExInfo
newtype ZNODEEXISTS = ZNODEEXISTS ZooExInfo
newtype ZNOTEMPTY = ZNOTEMPTY ZooExInfo
newtype ZSESSIONEXPIRED = ZSESSIONEXPIRED ZooExInfo
newtype ZINVALIDCALLBACK = ZINVALIDCALLBACK ZooExInfo
newtype ZINVALIDACL = ZINVALIDACL ZooExInfo
newtype ZAUTHFAILED = ZAUTHFAILED ZooExInfo
newtype ZCLOSING = ZCLOSING ZooExInfo
newtype ZNOTHING = ZNOTHING ZooExInfo
newtype ZSESSIONMOVED = ZSESSIONMOVED ZooExInfo
newtype ZNOTREADONLY = ZNOTREADONLY ZooExInfo
newtype ZEPHEMERALONLOCALSESSION = ZEPHEMERALONLOCALSESSION ZooExInfo
newtype ZNOWATCHER = ZNOWATCHER ZooExInfo
newtype ZRECONFIGDISABLED = ZRECONFIGDISABLED ZooExInfo
newtype ZSESSIONCLOSEDREQUIRESASLAUTH = ZSESSIONCLOSEDREQUIRESASLAUTH ZooExInfo
newtype ZTHROTTLEDOP = ZTHROTTLEDOP ZooExInfo
data SYSERRNO
data UNKNOWN_ERR
throwZooError :: CInt -> CallStack -> IO a
throwZooErrorIfNotOK :: HasCallStack => CInt -> IO CInt
throwZooErrorIfLeft :: HasCallStack => Either CInt a -> IO a
throwZooErrorIfLeft' :: HasCallStack => (CInt -> Bool) -> Either CInt a -> IO (Maybe a)
pattern CZOK :: CInt
pattern CZSYSTEMERROR :: CInt
pattern CZRUNTIMEINCONSISTENCY :: CInt
pattern CZDATAINCONSISTENCY :: CInt
pattern CZCONNECTIONLOSS :: CInt
pattern CZMARSHALLINGERROR :: CInt
pattern CZUNIMPLEMENTED :: CInt
pattern CZOPERATIONTIMEOUT :: CInt
pattern CZBADARGUMENTS :: CInt
pattern CZINVALIDSTATE :: CInt
pattern CZNEWCONFIGNOQUORUM :: CInt
pattern CZRECONFIGINPROGRESS :: CInt
pattern CZSSLCONNECTIONERROR :: CInt
pattern CZAPIERROR :: CInt
pattern CZNONODE :: CInt
pattern CZNOAUTH :: CInt
pattern CZBADVERSION :: CInt
pattern CZNOCHILDRENFOREPHEMERALS :: CInt
pattern CZNODEEXISTS :: CInt
pattern CZNOTEMPTY :: CInt
pattern CZSESSIONEXPIRED :: CInt
pattern CZINVALIDCALLBACK :: CInt
pattern CZINVALIDACL :: CInt
pattern CZAUTHFAILED :: CInt
pattern CZCLOSING :: CInt
pattern CZNOTHING :: CInt
pattern CZSESSIONMOVED :: CInt
pattern CZNOTREADONLY :: CInt
pattern CZEPHEMERALONLOCALSESSION :: CInt
pattern CZNOWATCHER :: CInt
pattern CZRECONFIGDISABLED :: CInt
pattern CZSESSIONCLOSEDREQUIRESASLAUTH :: CInt
pattern CZTHROTTLEDOP :: CInt
throwIO :: Exception e => e -> IO a
getCErrNum :: IO CInt

Documentation

data ZooException Source #

The root exception type of ZooKeeper.

Instances

Instances details

Exception ZooException Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZooException -> SomeException # fromException :: SomeException -> Maybe ZooException # displayException :: ZooException -> String #
Show ZooException Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZooException -> ShowS # show :: ZooException -> String # showList :: [ZooException] -> ShowS #

zooExceptionToException :: Exception e => e -> SomeException Source #

zooExceptionFromException :: Exception e => SomeException -> Maybe e Source #

data ZooExInfo Source #

Zookeeper error informations.

Constructors

ZooExInfo
Fields errDescription :: Text description for this zoo error errCallStack :: CallStack lightweight partial call-stack

Instances

Instances details

Print ZooExInfo Source #
Instance details Defined in ZooKeeper.Exception Methods toUTF8BuilderP :: Int -> ZooExInfo -> Builder () #
Show ZooExInfo Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZooExInfo -> ShowS # show :: ZooExInfo -> String # showList :: [ZooExInfo] -> ShowS #

System and server-side errors

This is never thrown by the server, it shouldn't be used other than to indicate a range. Specifically error codes greater than this value, but lesser than ZAPIERROR, are system errors.

newtype ZSYSTEMERROR Source #

Constructors

ZSYSTEMERROR ZooExInfo

Instances

Instances details

Exception ZSYSTEMERROR Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZSYSTEMERROR -> SomeException # fromException :: SomeException -> Maybe ZSYSTEMERROR # displayException :: ZSYSTEMERROR -> String #
Show ZSYSTEMERROR Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZSYSTEMERROR -> ShowS # show :: ZSYSTEMERROR -> String # showList :: [ZSYSTEMERROR] -> ShowS #

newtype ZRUNTIMEINCONSISTENCY Source #

Constructors

ZRUNTIMEINCONSISTENCY ZooExInfo

Instances

Instances details

Exception ZRUNTIMEINCONSISTENCY Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZRUNTIMEINCONSISTENCY -> SomeException # fromException :: SomeException -> Maybe ZRUNTIMEINCONSISTENCY # displayException :: ZRUNTIMEINCONSISTENCY -> String #
Show ZRUNTIMEINCONSISTENCY Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZRUNTIMEINCONSISTENCY -> ShowS # show :: ZRUNTIMEINCONSISTENCY -> String # showList :: [ZRUNTIMEINCONSISTENCY] -> ShowS #

newtype ZDATAINCONSISTENCY Source #

Constructors

ZDATAINCONSISTENCY ZooExInfo

Instances

Instances details

Exception ZDATAINCONSISTENCY Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZDATAINCONSISTENCY -> SomeException # fromException :: SomeException -> Maybe ZDATAINCONSISTENCY # displayException :: ZDATAINCONSISTENCY -> String #
Show ZDATAINCONSISTENCY Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZDATAINCONSISTENCY -> ShowS # show :: ZDATAINCONSISTENCY -> String # showList :: [ZDATAINCONSISTENCY] -> ShowS #

newtype ZCONNECTIONLOSS Source #

Constructors

ZCONNECTIONLOSS ZooExInfo

Instances

Instances details

Exception ZCONNECTIONLOSS Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZCONNECTIONLOSS -> SomeException # fromException :: SomeException -> Maybe ZCONNECTIONLOSS # displayException :: ZCONNECTIONLOSS -> String #
Show ZCONNECTIONLOSS Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZCONNECTIONLOSS -> ShowS # show :: ZCONNECTIONLOSS -> String # showList :: [ZCONNECTIONLOSS] -> ShowS #

newtype ZMARSHALLINGERROR Source #

Constructors

ZMARSHALLINGERROR ZooExInfo

Instances

Instances details

Exception ZMARSHALLINGERROR Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZMARSHALLINGERROR -> SomeException # fromException :: SomeException -> Maybe ZMARSHALLINGERROR # displayException :: ZMARSHALLINGERROR -> String #
Show ZMARSHALLINGERROR Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZMARSHALLINGERROR -> ShowS # show :: ZMARSHALLINGERROR -> String # showList :: [ZMARSHALLINGERROR] -> ShowS #

newtype ZUNIMPLEMENTED Source #

Constructors

ZUNIMPLEMENTED ZooExInfo

Instances

Instances details

Exception ZUNIMPLEMENTED Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZUNIMPLEMENTED -> SomeException # fromException :: SomeException -> Maybe ZUNIMPLEMENTED # displayException :: ZUNIMPLEMENTED -> String #
Show ZUNIMPLEMENTED Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZUNIMPLEMENTED -> ShowS # show :: ZUNIMPLEMENTED -> String # showList :: [ZUNIMPLEMENTED] -> ShowS #

newtype ZOPERATIONTIMEOUT Source #

Constructors

ZOPERATIONTIMEOUT ZooExInfo

Instances

Instances details

Exception ZOPERATIONTIMEOUT Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZOPERATIONTIMEOUT -> SomeException # fromException :: SomeException -> Maybe ZOPERATIONTIMEOUT # displayException :: ZOPERATIONTIMEOUT -> String #
Show ZOPERATIONTIMEOUT Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZOPERATIONTIMEOUT -> ShowS # show :: ZOPERATIONTIMEOUT -> String # showList :: [ZOPERATIONTIMEOUT] -> ShowS #

newtype ZBADARGUMENTS Source #

Constructors

ZBADARGUMENTS ZooExInfo

Instances

Instances details

Exception ZBADARGUMENTS Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZBADARGUMENTS -> SomeException # fromException :: SomeException -> Maybe ZBADARGUMENTS # displayException :: ZBADARGUMENTS -> String #
Show ZBADARGUMENTS Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZBADARGUMENTS -> ShowS # show :: ZBADARGUMENTS -> String # showList :: [ZBADARGUMENTS] -> ShowS #

newtype ZINVALIDSTATE Source #

Constructors

ZINVALIDSTATE ZooExInfo

Instances

Instances details

Exception ZINVALIDSTATE Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZINVALIDSTATE -> SomeException # fromException :: SomeException -> Maybe ZINVALIDSTATE # displayException :: ZINVALIDSTATE -> String #
Show ZINVALIDSTATE Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZINVALIDSTATE -> ShowS # show :: ZINVALIDSTATE -> String # showList :: [ZINVALIDSTATE] -> ShowS #

newtype ZNEWCONFIGNOQUORUM Source #

Constructors

ZNEWCONFIGNOQUORUM ZooExInfo

Instances

Instances details

Exception ZNEWCONFIGNOQUORUM Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNEWCONFIGNOQUORUM -> SomeException # fromException :: SomeException -> Maybe ZNEWCONFIGNOQUORUM # displayException :: ZNEWCONFIGNOQUORUM -> String #
Show ZNEWCONFIGNOQUORUM Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNEWCONFIGNOQUORUM -> ShowS # show :: ZNEWCONFIGNOQUORUM -> String # showList :: [ZNEWCONFIGNOQUORUM] -> ShowS #

newtype ZRECONFIGINPROGRESS Source #

Constructors

ZRECONFIGINPROGRESS ZooExInfo

Instances

Instances details

Exception ZRECONFIGINPROGRESS Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZRECONFIGINPROGRESS -> SomeException # fromException :: SomeException -> Maybe ZRECONFIGINPROGRESS # displayException :: ZRECONFIGINPROGRESS -> String #
Show ZRECONFIGINPROGRESS Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZRECONFIGINPROGRESS -> ShowS # show :: ZRECONFIGINPROGRESS -> String # showList :: [ZRECONFIGINPROGRESS] -> ShowS #

newtype ZSSLCONNECTIONERROR Source #

Constructors

ZSSLCONNECTIONERROR ZooExInfo

Instances

Instances details

Exception ZSSLCONNECTIONERROR Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZSSLCONNECTIONERROR -> SomeException # fromException :: SomeException -> Maybe ZSSLCONNECTIONERROR # displayException :: ZSSLCONNECTIONERROR -> String #
Show ZSSLCONNECTIONERROR Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZSSLCONNECTIONERROR -> ShowS # show :: ZSSLCONNECTIONERROR -> String # showList :: [ZSSLCONNECTIONERROR] -> ShowS #

API Errors

This is never thrown by the server, it shouldn't be used other than to indicate a range. Specifically error codes greater than this value are API errors (while values less than this indicate a ZSYSTEMERROR).

newtype ZAPIERROR Source #

Constructors

ZAPIERROR ZooExInfo

Instances

Instances details

Exception ZAPIERROR Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZAPIERROR -> SomeException # fromException :: SomeException -> Maybe ZAPIERROR # displayException :: ZAPIERROR -> String #
Show ZAPIERROR Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZAPIERROR -> ShowS # show :: ZAPIERROR -> String # showList :: [ZAPIERROR] -> ShowS #

newtype ZNONODE Source #

Constructors

ZNONODE ZooExInfo

Instances

Instances details

Exception ZNONODE Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNONODE -> SomeException # fromException :: SomeException -> Maybe ZNONODE # displayException :: ZNONODE -> String #
Show ZNONODE Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNONODE -> ShowS # show :: ZNONODE -> String # showList :: [ZNONODE] -> ShowS #

newtype ZNOAUTH Source #

Constructors

ZNOAUTH ZooExInfo

Instances

Instances details

Exception ZNOAUTH Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOAUTH -> SomeException # fromException :: SomeException -> Maybe ZNOAUTH # displayException :: ZNOAUTH -> String #
Show ZNOAUTH Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOAUTH -> ShowS # show :: ZNOAUTH -> String # showList :: [ZNOAUTH] -> ShowS #

newtype ZBADVERSION Source #

Constructors

ZBADVERSION ZooExInfo

Instances

Instances details

Exception ZBADVERSION Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZBADVERSION -> SomeException # fromException :: SomeException -> Maybe ZBADVERSION # displayException :: ZBADVERSION -> String #
Show ZBADVERSION Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZBADVERSION -> ShowS # show :: ZBADVERSION -> String # showList :: [ZBADVERSION] -> ShowS #

newtype ZNOCHILDRENFOREPHEMERALS Source #

Constructors

ZNOCHILDRENFOREPHEMERALS ZooExInfo

Instances

Instances details

Exception ZNOCHILDRENFOREPHEMERALS Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOCHILDRENFOREPHEMERALS -> SomeException # fromException :: SomeException -> Maybe ZNOCHILDRENFOREPHEMERALS # displayException :: ZNOCHILDRENFOREPHEMERALS -> String #
Show ZNOCHILDRENFOREPHEMERALS Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOCHILDRENFOREPHEMERALS -> ShowS # show :: ZNOCHILDRENFOREPHEMERALS -> String # showList :: [ZNOCHILDRENFOREPHEMERALS] -> ShowS #

newtype ZNODEEXISTS Source #

Constructors

ZNODEEXISTS ZooExInfo

Instances

Instances details

Exception ZNODEEXISTS Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNODEEXISTS -> SomeException # fromException :: SomeException -> Maybe ZNODEEXISTS # displayException :: ZNODEEXISTS -> String #
Show ZNODEEXISTS Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNODEEXISTS -> ShowS # show :: ZNODEEXISTS -> String # showList :: [ZNODEEXISTS] -> ShowS #

newtype ZNOTEMPTY Source #

Constructors

ZNOTEMPTY ZooExInfo

Instances

Instances details

Exception ZNOTEMPTY Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOTEMPTY -> SomeException # fromException :: SomeException -> Maybe ZNOTEMPTY # displayException :: ZNOTEMPTY -> String #
Show ZNOTEMPTY Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOTEMPTY -> ShowS # show :: ZNOTEMPTY -> String # showList :: [ZNOTEMPTY] -> ShowS #

newtype ZSESSIONEXPIRED Source #

Constructors

ZSESSIONEXPIRED ZooExInfo

Instances

Instances details

Exception ZSESSIONEXPIRED Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZSESSIONEXPIRED -> SomeException # fromException :: SomeException -> Maybe ZSESSIONEXPIRED # displayException :: ZSESSIONEXPIRED -> String #
Show ZSESSIONEXPIRED Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZSESSIONEXPIRED -> ShowS # show :: ZSESSIONEXPIRED -> String # showList :: [ZSESSIONEXPIRED] -> ShowS #

newtype ZINVALIDCALLBACK Source #

Constructors

ZINVALIDCALLBACK ZooExInfo

Instances

Instances details

Exception ZINVALIDCALLBACK Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZINVALIDCALLBACK -> SomeException # fromException :: SomeException -> Maybe ZINVALIDCALLBACK # displayException :: ZINVALIDCALLBACK -> String #
Show ZINVALIDCALLBACK Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZINVALIDCALLBACK -> ShowS # show :: ZINVALIDCALLBACK -> String # showList :: [ZINVALIDCALLBACK] -> ShowS #

newtype ZINVALIDACL Source #

Constructors

ZINVALIDACL ZooExInfo

Instances

Instances details

Exception ZINVALIDACL Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZINVALIDACL -> SomeException # fromException :: SomeException -> Maybe ZINVALIDACL # displayException :: ZINVALIDACL -> String #
Show ZINVALIDACL Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZINVALIDACL -> ShowS # show :: ZINVALIDACL -> String # showList :: [ZINVALIDACL] -> ShowS #

newtype ZAUTHFAILED Source #

Constructors

ZAUTHFAILED ZooExInfo

Instances

Instances details

Exception ZAUTHFAILED Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZAUTHFAILED -> SomeException # fromException :: SomeException -> Maybe ZAUTHFAILED # displayException :: ZAUTHFAILED -> String #
Show ZAUTHFAILED Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZAUTHFAILED -> ShowS # show :: ZAUTHFAILED -> String # showList :: [ZAUTHFAILED] -> ShowS #

newtype ZCLOSING Source #

Constructors

ZCLOSING ZooExInfo

Instances

Instances details

Exception ZCLOSING Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZCLOSING -> SomeException # fromException :: SomeException -> Maybe ZCLOSING # displayException :: ZCLOSING -> String #
Show ZCLOSING Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZCLOSING -> ShowS # show :: ZCLOSING -> String # showList :: [ZCLOSING] -> ShowS #

newtype ZNOTHING Source #

Constructors

ZNOTHING ZooExInfo

Instances

Instances details

Exception ZNOTHING Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOTHING -> SomeException # fromException :: SomeException -> Maybe ZNOTHING # displayException :: ZNOTHING -> String #
Show ZNOTHING Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOTHING -> ShowS # show :: ZNOTHING -> String # showList :: [ZNOTHING] -> ShowS #

newtype ZSESSIONMOVED Source #

Constructors

ZSESSIONMOVED ZooExInfo

Instances

Instances details

Exception ZSESSIONMOVED Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZSESSIONMOVED -> SomeException # fromException :: SomeException -> Maybe ZSESSIONMOVED # displayException :: ZSESSIONMOVED -> String #
Show ZSESSIONMOVED Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZSESSIONMOVED -> ShowS # show :: ZSESSIONMOVED -> String # showList :: [ZSESSIONMOVED] -> ShowS #

newtype ZNOTREADONLY Source #

Constructors

ZNOTREADONLY ZooExInfo

Instances

Instances details

Exception ZNOTREADONLY Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOTREADONLY -> SomeException # fromException :: SomeException -> Maybe ZNOTREADONLY # displayException :: ZNOTREADONLY -> String #
Show ZNOTREADONLY Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOTREADONLY -> ShowS # show :: ZNOTREADONLY -> String # showList :: [ZNOTREADONLY] -> ShowS #

newtype ZEPHEMERALONLOCALSESSION Source #

Constructors

ZEPHEMERALONLOCALSESSION ZooExInfo

Instances

Instances details

Exception ZEPHEMERALONLOCALSESSION Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZEPHEMERALONLOCALSESSION -> SomeException # fromException :: SomeException -> Maybe ZEPHEMERALONLOCALSESSION # displayException :: ZEPHEMERALONLOCALSESSION -> String #
Show ZEPHEMERALONLOCALSESSION Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZEPHEMERALONLOCALSESSION -> ShowS # show :: ZEPHEMERALONLOCALSESSION -> String # showList :: [ZEPHEMERALONLOCALSESSION] -> ShowS #

newtype ZNOWATCHER Source #

Constructors

ZNOWATCHER ZooExInfo

Instances

Instances details

Exception ZNOWATCHER Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZNOWATCHER -> SomeException # fromException :: SomeException -> Maybe ZNOWATCHER # displayException :: ZNOWATCHER -> String #
Show ZNOWATCHER Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZNOWATCHER -> ShowS # show :: ZNOWATCHER -> String # showList :: [ZNOWATCHER] -> ShowS #

newtype ZRECONFIGDISABLED Source #

Constructors

ZRECONFIGDISABLED ZooExInfo

Instances

Instances details

Exception ZRECONFIGDISABLED Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZRECONFIGDISABLED -> SomeException # fromException :: SomeException -> Maybe ZRECONFIGDISABLED # displayException :: ZRECONFIGDISABLED -> String #
Show ZRECONFIGDISABLED Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZRECONFIGDISABLED -> ShowS # show :: ZRECONFIGDISABLED -> String # showList :: [ZRECONFIGDISABLED] -> ShowS #

newtype ZSESSIONCLOSEDREQUIRESASLAUTH Source #

Constructors

ZSESSIONCLOSEDREQUIRESASLAUTH ZooExInfo

Instances

Instances details

Exception ZSESSIONCLOSEDREQUIRESASLAUTH Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZSESSIONCLOSEDREQUIRESASLAUTH -> SomeException # fromException :: SomeException -> Maybe ZSESSIONCLOSEDREQUIRESASLAUTH # displayException :: ZSESSIONCLOSEDREQUIRESASLAUTH -> String #
Show ZSESSIONCLOSEDREQUIRESASLAUTH Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZSESSIONCLOSEDREQUIRESASLAUTH -> ShowS # show :: ZSESSIONCLOSEDREQUIRESASLAUTH -> String # showList :: [ZSESSIONCLOSEDREQUIRESASLAUTH] -> ShowS #

newtype ZTHROTTLEDOP Source #

Constructors

ZTHROTTLEDOP ZooExInfo

Instances

Instances details

Exception ZTHROTTLEDOP Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: ZTHROTTLEDOP -> SomeException # fromException :: SomeException -> Maybe ZTHROTTLEDOP # displayException :: ZTHROTTLEDOP -> String #
Show ZTHROTTLEDOP Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> ZTHROTTLEDOP -> ShowS # show :: ZTHROTTLEDOP -> String # showList :: [ZTHROTTLEDOP] -> ShowS #

Other Errors

data SYSERRNO Source #

Instances

Instances details

Exception SYSERRNO Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: SYSERRNO -> SomeException # fromException :: SomeException -> Maybe SYSERRNO # displayException :: SYSERRNO -> String #
Show SYSERRNO Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> SYSERRNO -> ShowS # show :: SYSERRNO -> String # showList :: [SYSERRNO] -> ShowS #

data UNKNOWN_ERR Source #

Instances

Instances details

Exception UNKNOWN_ERR Source #
Instance details Defined in ZooKeeper.Exception Methods toException :: UNKNOWN_ERR -> SomeException # fromException :: SomeException -> Maybe UNKNOWN_ERR # displayException :: UNKNOWN_ERR -> String #
Show UNKNOWN_ERR Source #
Instance details Defined in ZooKeeper.Exception Methods showsPrec :: Int -> UNKNOWN_ERR -> ShowS # show :: UNKNOWN_ERR -> String # showList :: [UNKNOWN_ERR] -> ShowS #

throwZooError :: CInt -> CallStack -> IO a Source #

throwZooErrorIfNotOK :: HasCallStack => CInt -> IO CInt Source #

throwZooErrorIfLeft :: HasCallStack => Either CInt a -> IO a Source #

throwZooErrorIfLeft' :: HasCallStack => (CInt -> Bool) -> Either CInt a -> IO (Maybe a) Source #

Error number patterns

pattern CZOK :: CInt Source #

pattern CZSYSTEMERROR :: CInt Source #

pattern CZRUNTIMEINCONSISTENCY :: CInt Source #

pattern CZDATAINCONSISTENCY :: CInt Source #

pattern CZCONNECTIONLOSS :: CInt Source #

pattern CZMARSHALLINGERROR :: CInt Source #

pattern CZUNIMPLEMENTED :: CInt Source #

pattern CZOPERATIONTIMEOUT :: CInt Source #

pattern CZBADARGUMENTS :: CInt Source #

pattern CZINVALIDSTATE :: CInt Source #

pattern CZNEWCONFIGNOQUORUM :: CInt Source #

pattern CZRECONFIGINPROGRESS :: CInt Source #

pattern CZSSLCONNECTIONERROR :: CInt Source #

pattern CZAPIERROR :: CInt Source #

pattern CZNONODE :: CInt Source #

pattern CZNOAUTH :: CInt Source #

pattern CZBADVERSION :: CInt Source #

pattern CZNOCHILDRENFOREPHEMERALS :: CInt Source #

pattern CZNODEEXISTS :: CInt Source #

pattern CZNOTEMPTY :: CInt Source #

pattern CZSESSIONEXPIRED :: CInt Source #

pattern CZINVALIDCALLBACK :: CInt Source #

pattern CZINVALIDACL :: CInt Source #

pattern CZAUTHFAILED :: CInt Source #

pattern CZCLOSING :: CInt Source #

pattern CZNOTHING :: CInt Source #

pattern CZSESSIONMOVED :: CInt Source #

pattern CZNOTREADONLY :: CInt Source #

pattern CZEPHEMERALONLOCALSESSION :: CInt Source #

pattern CZNOWATCHER :: CInt Source #

pattern CZRECONFIGDISABLED :: CInt Source #

pattern CZSESSIONCLOSEDREQUIRESASLAUTH :: CInt Source #

pattern CZTHROTTLEDOP :: CInt Source #

Helpers

throwIO :: Exception e => e -> IO a #

A variant of throw that can only be used within the IO monad.

Although throwIO has a type that is an instance of the type of throw, the two functions are subtly different:

throw e   `seq` ()  ===> throw e
throwIO e `seq` ()  ===> ()

The first example will cause the exception e to be raised, whereas the second one won't. In fact, throwIO will only cause an exception to be raised when it is used within the IO monad.

The throwIO variant should be used in preference to throw to raise an exception within the IO monad because it guarantees ordering with respect to other operations, whereas throw does not. We say that throwIO throws *precise* exceptions and throw, error, etc. all throw *imprecise* exceptions. For example

throw e + error "boom" ===> error "boom"
throw e + error "boom" ===> throw e

are both valid reductions and the compiler may pick any (loop, even), whereas

throwIO e >> error "boom" ===> throwIO e

will always throw e when executed.

See also the GHC wiki page on precise exceptions for a more technical introduction to how GHC optimises around precise vs. imprecise exceptions.

getCErrNum :: IO CInt Source #