public void ReceiveMessage(SqlTransaction transaction)
{
Message message = null;
try {
message = ServiceBrokerWrapper.WaitAndReceive(transaction, this.ListenerQueue, waitTimeout);
} catch (Exception e) {
Logger.Error("Error in receiving message from queue.", e);
throw; // Throw to rollback
} finally {
transactionWaitPool.Release(1);
releasedWaitLock = true;
}
// No message? That's okay
if (message == null)
{
return;
}
Guid conversationHandle = message.ConversationHandle;
try {
// Only handle transport messages
if (message.MessageTypeName == NServiceBusTransportMessage)
{
TransportMessage transportMessage = null;
try {
transportMessage = TransportMessageSerializer.Deserialize(message.BodyStream, true);
} catch (Exception ex) {
Logger.Error("Could not extract message data.", ex);
OnSerializationFailed(conversationHandle, message, ex);
return; // deserialization failed - no reason to try again, so don't throw
}
// Set the message Id
if (string.IsNullOrEmpty(transportMessage.Id))
{
transportMessage.Id = conversationHandle.ToString();
}
// Set the correlation Id
if (string.IsNullOrEmpty(transportMessage.IdForCorrelation))
{
transportMessage.IdForCorrelation = transportMessage.Id;
}
ProcessMessage(message, transportMessage);
}
} finally {
// End the conversation
ServiceBrokerWrapper.EndConversation(transaction, conversationHandle);
}
}
private void OnSerializationFailed(Guid conversationHandle, Message underlyingTransportObject, Exception exception)
{
try {
TransportMessage transportMessage = null;
try
{
transportMessage = TransportMessageSerializer.Deserialize(underlyingTransportObject.BodyStream, false);
}
catch (Exception)
{
// Eat this exception
}
this.WriteFailedMessage(conversationHandle, underlyingTransportObject, transportMessage, exception, 3);
if (MessageFault != null)
{
MessageFault(this, new TransportMessageFaultEventArgs(transportMessage, exception, "SerializationFailed"));
}
SendFailureMessage(transportMessage, exception, "SerializationFailed");
} catch (Exception e) {
Logger.FatalFormat("Fault manager failed to process the failed message {0}", e, underlyingTransportObject);
// TODO critical error will stop the transport from handling new messages
//Configure.Instance.OnCriticalError();
}
}