public static Task <TResult> ResolveCreate <TResult>(this StorageException exception,
Microsoft.WindowsAzure.Storage.Table.CloudTable table,
Func <TResult> retry,
Func <ExtendedErrorInformationCodes, string, TResult> onFailure = default,
Func <TResult> onAlreadyExists = default,
AzureStorageDriver.RetryDelegate onTimeout = default)
{
return(exception.ParseStorageException(
onEntityAlreadyExists: (msg) => onAlreadyExists().AsTask(),
onNotFound: async(msg) => // IsProblemTableDoesNotExist
{
try
{
await table.CreateIfNotExistsAsync();
return retry();
}
catch (StorageException createEx)
{
// Catch bug with azure storage table client library where
// if two resources attempt to create the table at the same
// time one gets a precondtion failed error.
System.Threading.Thread.Sleep(1000);
return retry();
}
catch (Exception) { throw; };
},
onTimeout: async(msg) => // IsProblemTimeout
{
if (onTimeout.IsDefaultOrNull())
{
onTimeout = AzureStorageDriver.GetRetryDelegate();
}
bool shouldRetry = false;
await onTimeout(exception.RequestInformation.HttpStatusCode, exception,
() =>
{
shouldRetry = true;
return 1.AsTask();
});
if (shouldRetry)
{
return retry();
}
throw exception;
},
onDefaultCallback:
(error, msg) => onFailure(error, msg).AsTask()));
}
