MessageDb.Subscription.FailureStrategy

Strategies for dealing with message handle failures.

Documentation

data FailureReason

Reason why the message handle failed.

Constructors

HandleFailure HandleError

UnknownFailure SomeException

Instances

Show FailureReason

Defined in MessageDb.Subscription.FailureStrategy

Methods

showsPrec :: Int -> FailureReason -> ShowS

show :: FailureReason -> String

showList :: [FailureReason] -> ShowS

Exception FailureReason

Defined in MessageDb.Subscription.FailureStrategy

Methods

toException :: FailureReason -> SomeException

fromException :: SomeException -> Maybe FailureReason

displayException :: FailureReason -> String

newtype FailureStrategy

Strategy for logging failures.

Constructors

FailureStrategy

Fields

• logFailure :: Message -> FailureReason -> IO ()

Instances

Semigroup FailureStrategy

Defined in MessageDb.Subscription.FailureStrategy

Methods

(<>) :: FailureStrategy -> FailureStrategy -> FailureStrategy

sconcat :: NonEmpty FailureStrategy -> FailureStrategy

stimes :: Integral b => b -> FailureStrategy -> FailureStrategy

Monoid FailureStrategy

Defined in MessageDb.Subscription.FailureStrategy

Methods

mempty :: FailureStrategy

mappend :: FailureStrategy -> FailureStrategy -> FailureStrategy

mconcat :: [FailureStrategy] -> FailureStrategy

ignoreFailures :: FailureStrategy

Do nothing, ignore all failures.

writeToCategory :: (FailureReason -> Bool) -> WithConnection -> CategoryName -> FailureStrategy

Write a failure to a category. Use shouldKeep to filter out message failures you don't want to log.

writeUnknownFailuresToCategory :: WithConnection -> CategoryName -> FailureStrategy

Only write UnknownFailures to a category.

writeAllToCategory :: WithConnection -> CategoryName -> FailureStrategy

Write either UnknownFailures or HandleFailures to a category.