private void TryHandleMessageInner(SqlTransaction transaction, ServiceBrokerMessage message)
{
// Only handle transport messages
if (message.MessageTypeName != ServiceBrokerMessageType &&
!message.IsDialogTimerMessage())
{
logger.Debug("Ignoring message of type {0} from queue {1}", message.MessageTypeName, ServiceBrokerQueue);
return; // ignore
}
IncomingTransportMessage transportMessage = null;
try
{
if (message.IsDialogTimerMessage())
{
transportMessage = TryLoadDialogTimerTimeoutMessage(transaction, message);
}
else
{
transportMessage = TryDeserializeTransportMessage(message);
}
if (!transportMessage.Headers.ContainsKey(StandardHeaders.OriginatingAddress))
{
transportMessage.Headers[StandardHeaders.OriginatingAddress] = ServiceBrokerWrapper.TryGetConversationFarService(transaction, message.ConversationHandle);
}
Exception lastException = null;
if (faultManager.MaxRetriesExceeded(transportMessage, out lastException))
{
logger.Debug("MaxRetriesExceeded: Moving message {0} from queue {1} to poison message table.", message.ConversationHandle.ToString(), ServiceBrokerQueue);
MoveToPoisonMessage(transaction, message, transportMessage, lastException, "MaxRetriesExceeded", MaxRetries);
return; // return without error to commit transaction
}
logger.Debug("Notifying observers of new TransportMessage for message {0} from queue {1}.", message.ConversationHandle, ServiceBrokerQueue);
if (this.MessageAvailable != null)
{
this.MessageAvailable(this, new MessageAvailable(transportMessage));
}
}
catch (CannotDeserializeMessageException e)
{
// If we can't deserialize the transport message or inner message, there is no reason to retry.
// note: error is already logged so we don't need to log here
logger.Debug("DeserializeError: Moving message {0} from queue {1} to poison message table.", message.ConversationHandle.ToString(), ServiceBrokerQueue);
MoveToPoisonMessage(transaction, message, transportMessage, e, "DeserializeError", 0);
return; // return without error to commit transaction
}
}
private void MoveToPoisonMessage(SqlTransaction transaction, ServiceBrokerMessage serviceBrokerMessage, IncomingTransportMessage transportMessage, Exception exception, string errorCode, int retries)
{
var origin_service_name = "";
if (transportMessage != null && transportMessage.Headers.ContainsKey(StandardHeaders.OriginatingAddress))
{
origin_service_name = transportMessage.Headers[StandardHeaders.OriginatingAddress];
}
else if (transportMessage != null && transportMessage.Headers.ContainsKey(StandardHeaders.ReplyToAddress))
{
origin_service_name = transportMessage.Headers[StandardHeaders.ReplyToAddress];
}
else
{
origin_service_name = ServiceBrokerWrapper.TryGetConversationFarService(transaction, serviceBrokerMessage.ConversationHandle);
}
try
{
// write to the message to the PosionMessage table
using (var command = transaction.Connection.CreateCommand())
{
command.CommandText = "spInsertPoisonMessage";
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue("@conversation_handle", serviceBrokerMessage.ConversationHandle);
command.Parameters.AddWithValue("@origin_service_name", origin_service_name);
command.Parameters.AddWithValue("@service_name", this.ServiceBrokerService);
command.Parameters.AddWithValue("@queue_name", this.ServiceBrokerQueue);
command.Parameters.AddWithValue("@message_body", serviceBrokerMessage.Body);
command.Parameters.AddWithValue("@retries", retries);
command.Parameters.AddWithValue("@errorCode", errorCode);
if (exception != null)
{
command.Parameters.AddWithValue("@errorMessage", FormatErrorMessage(exception));
}
else
{
command.Parameters.AddWithValue("@errorMessage", DBNull.Value);
}
command.Transaction = transaction;
command.ExecuteNonQuery();
}
}
catch (Exception e)
{
logger.Fatal(e, "Failed to write PoisonMessage for message {0} from queue {1}", serviceBrokerMessage.ConversationHandle, ServiceBrokerQueue);
// suppress -- don't let this exception take down the process
}
if (PoisonMessageDetected != null)
{
PoisonMessageDetected(this, new PoisonMessageDetectedEventArgs()
{
MessageId = serviceBrokerMessage.ConversationHandle.ToString(),
OriginServiceName = origin_service_name,
ServiceName = this.ServiceBrokerService,
QueueName = this.ServiceBrokerQueue,
MessageBody = serviceBrokerMessage.Body,
Retries = retries,
ErrorCode = errorCode,
Exception = exception,
});
}
}
