private MessageReleaseAction OnMessageReceived(Message message)
{
// NOTE: type information does not belong here. It's a responsibility
// of the serializer to be self-contained and put any information it
// might need for rehydration.
object payload;
using (var stream = new MemoryStream(message.Body))
using (var reader = new StreamReader(stream))
{
try
{
payload = this.serializer.Deserialize(reader);
}
catch (SerializationException e)
{
return(MessageReleaseAction.DeadLetterMessage(e.Message, e.ToString()));
}
}
// TODO: have a better trace correlation mechanism (that is used in both the sender and receiver).
string traceIdentifier = BuildTraceIdentifier(message);
try
{
ProcessMessage(traceIdentifier, payload, message.MessageId, message.CorrelationId);
}
catch (Exception e)
{
return(HandleProcessingException(message, traceIdentifier, e));
}
return(CompleteMessage(message, traceIdentifier));
}
private MessageReleaseAction HandleProcessingException(BrokeredMessage message, string traceIdentifier, Exception e)
{
if (message.DeliveryCount > MaxProcessingRetries)
{
Trace.TraceError("An error occurred while processing the message" + traceIdentifier + " and will be dead-lettered:\r\n{0}", e);
return(MessageReleaseAction.DeadLetterMessage(e.Message, e.ToString()));
}
Trace.TraceWarning("An error occurred while processing the message" + traceIdentifier + " and will be abandoned:\r\n{0}", e);
return(MessageReleaseAction.AbandonMessage);
}
private MessageReleaseAction HandleProcessingException(Message message, string traceIdentifier, Exception e)
{
if (message.SystemProperties.DeliveryCount > MaxProcessingRetries)
{
logger.LogError($"An error occurred while processing the message {traceIdentifier} and will be dead-lettered:\r\n{e.Message}");
return(MessageReleaseAction.DeadLetterMessage(e.Message, e.ToString()));
}
else
{
logger.LogWarning($"An error occurred while processing the message {traceIdentifier} and will be abandoned:\r\n{e.Message}");
return(MessageReleaseAction.AbandonMessage);
}
}