private TransactionOptions GetTransactionOptions()
{
return(new TransactionOptions
{
IsolationLevel = Transaction.Current == null ? queueIsolationLevel : Transaction.Current.IsolationLevel,
Timeout = TransportUtil.GetTransactionTimeout(),
});
}
public void ReceiveMessageInTransaction(OpenedQueue queue, string messageId, Func <CurrentMessageInformation, bool> messageArrived, Action <CurrentMessageInformation, Exception> messageProcessingCompleted, Action <CurrentMessageInformation> beforeMessageTransactionCommit, Action <CurrentMessageInformation> beforeMessageTransactionRollback)
{
var transactionOptions = new TransactionOptions
{
IsolationLevel = queueIsolationLevel,
Timeout = TransportUtil.GetTransactionTimeout(),
};
using (var tx = new TransactionScope(TransactionScopeOption.Required, transactionOptions))
{
var message = queue.TryGetMessageFromQueue(messageId);
if (message == null)
{
return; // someone else got our message, better luck next time
}
ProcessMessage(message, queue, tx, messageArrived, beforeMessageTransactionCommit, beforeMessageTransactionRollback, messageProcessingCompleted);
}
}
protected override void HandlePeekedMessage(OpenedQueue queue, Message message)
{
try
{
using (var tx = new TransactionScope(TransactionScopeOption.Required, TransportUtil.GetTransactionTimeout()))
{
message = queue.TryGetMessageFromQueue(message.Id);
if (message == null)
{
return;
}
if ((MessageType)message.AppSpecific == MessageType.LoadBalancerMessageMarker)
{
HandleLoadBalancerMessage(queue, message);
}
tx.Complete();
}
}
catch (Exception e)
{
logger.Error("Fail to process load balanced message properly", e);
}
}
protected override void HandlePeekedMessage(OpenedQueue queue, Message message)
{
try
{
using (var tx = new TransactionScope(TransactionScopeOption.Required, TransportUtil.GetTransactionTimeout()))
{
message = queue.TryGetMessageFromQueue(message.Id);
if (message == null)
{
return;
}
PersistEndpoint(queue, message);
switch ((MessageType)message.AppSpecific)
{
case MessageType.ShutDownMessageMarker:
//silently cnsume the message
break;
case MessageType.LoadBalancerMessageMarker:
HandleLoadBalancerMessage(queue, message);
break;
case MessageType.AdministrativeMessageMarker:
SendToAllWorkers(message, "Dispatching administrative message from {0} to load balancer {1}");
break;
default:
HandleStandardMessage(queue, message);
break;
}
tx.Complete();
}
}
catch (Exception e)
{
logger.Error("Fail to process load balanced message properly", e);
}
}