void Subscribe(Notifications notifications)
{
var errorsNotifications = notifications.Errors;
errorsNotifications.MessageHasBeenSentToSecondLevelRetries += (sender, retry) => LogEvent(retry);
errorsNotifications.MessageHasFailedAFirstLevelRetryAttempt += (sender, retry) => LogEvent(retry);
errorsNotifications.MessageSentToErrorQueue += (sender, retry) => LogEvent(retry);
}
EventsToObservables(Notifications notifications, ILog log)
{
#region ConvertEventToObservable
IObservable<EventPattern<FailedMessage>> failedMessages = Observable.FromEventPattern<EventHandler<FailedMessage>, FailedMessage>(
handler => notifications.Errors.MessageSentToErrorQueue += handler,
handler => notifications.Errors.MessageSentToErrorQueue -= handler);
IDisposable subscription = failedMessages
.Subscribe(x =>
{
FailedMessage failedMessage = x.EventArgs;
log.Error($"Message {failedMessage.MessageId} moved to error queue", failedMessage.Exception);
});
#endregion
}