private async Task <MessageHandlerResult> HandleMessages(
IEnumerable <IInboundMessage> messages,
Func <IEnumerable <IInboundMessage>, Task> messagesHandler,
IErrorPolicy errorPolicy, int attempt)
{
try
{
_messageLogger.LogProcessing(_logger, messages);
await messagesHandler(messages);
return(MessageHandlerResult.Success);
}
catch (Exception ex)
{
_messageLogger.LogProcessingError(_logger, messages, ex);
if (errorPolicy == null)
{
throw;
}
UpdateFailedAttemptsHeader(messages, attempt);
if (!errorPolicy.CanHandle(messages, ex))
{
throw;
}
var action = errorPolicy.HandleError(messages, ex);
if (action == ErrorAction.StopConsuming)
{
throw;
}
return(MessageHandlerResult.Error(action));
}
}
private MessageHandlerResult HandleMessage <TInboundMessage>(TInboundMessage message, Action <TInboundMessage> messageHandler, IErrorPolicy errorPolicy, int attempt)
where TInboundMessage : IInboundMessage
{
try
{
message = (TInboundMessage)DeserializeIfNeeded(message);
_messageLogger.LogProcessing(_logger, message);
messageHandler(message);
return(MessageHandlerResult.Success);
}
catch (Exception ex)
{
_messageLogger.LogProcessingError(_logger, message, ex);
if (errorPolicy == null)
{
throw;
}
UpdateFailedAttemptsHeader(message, attempt);
if (!errorPolicy.CanHandle(message, ex))
{
throw;
}
var action = errorPolicy.HandleError(message, ex);
if (action == ErrorAction.StopConsuming)
{
throw;
}
return(MessageHandlerResult.Error(action));
}
}
