private void ReceiveTopicMessages(CancellationTokenSource cancellationSource,
OnMessagesReceived onMessagesReceived)
{
var needPeek = true;
long sequenceNumber = 0;
IEnumerable <BrokeredMessage> brokeredMessages = null;
#region peek messages that not been consumed since last time
while (!cancellationSource.IsCancellationRequested && needPeek)
{
try
{
brokeredMessages = _subscriptionClient.PeekBatch(sequenceNumber, 50);
if (brokeredMessages == null || brokeredMessages.Count() == 0)
{
break;
}
var messageContexts = new List <IMessageContext>();
foreach (var message in brokeredMessages)
{
if (message.State != MessageState.Deferred)
{
needPeek = false;
break;
}
messageContexts.Add(new MessageContext(message));
sequenceNumber = message.SequenceNumber + 1;
}
onMessagesReceived(messageContexts.ToArray());
}
catch (OperationCanceledException)
{
return;
}
catch (ThreadAbortException)
{
return;
}
catch (Exception ex)
{
Thread.Sleep(1000);
_logger.Error($"subscriptionClient.ReceiveBatch {_subscriptionClient.Name} failed", ex);
}
}
#endregion
#region receive messages to enqueue consuming queue
while (!cancellationSource.IsCancellationRequested)
{
try
{
brokeredMessages =
_subscriptionClient.ReceiveBatch(50,
Configuration.Instance.GetMessageQueueReceiveMessageTimeout());
foreach (var message in brokeredMessages)
{
message.Defer();
onMessagesReceived(new MessageContext(message));
}
}
catch (OperationCanceledException)
{
return;
}
catch (ThreadAbortException)
{
return;
}
catch (Exception ex)
{
Thread.Sleep(1000);
_logger.Error($"subscriptionClient.ReceiveBatch {_subscriptionClient.Name} failed", ex);
}
}
#endregion
}
static void Test(NamespaceManager namespaceManager, MessagingFactory messageFactory)
{
var q = namespaceManager.GetQueue(QueueName);
var t = namespaceManager.GetTopic(TopicName);
var gf = namespaceManager.GetTopics();
if (!namespaceManager.QueueExists(QueueName))
{
namespaceManager.CreateQueue(QueueName);
}
QueueClient myQueueClient = messageFactory.CreateQueueClient(QueueName);
try
{
BrokeredMessage sendMessage = new BrokeredMessage("Hello World !");
myQueueClient.Send(sendMessage);
//// Receive the message from the queue
//BrokeredMessage receivedMessage = myQueueClient.Receive(TimeSpan.FromSeconds(5));
//if (receivedMessage != null)
//{
// Console.WriteLine(string.Format("Message received: {0}", receivedMessage.GetBody<string>()));
// receivedMessage.Complete();
//}
//Check for messages that are older than they should be
int minutesOld = 1;
DateTime oldest = DateTime.UtcNow.AddMinutes(-minutesOld);
int oldMessageCount = 0;
List <BrokeredMessage> messages = new List <BrokeredMessage>(myQueueClient.PeekBatch(1000));
foreach (BrokeredMessage b in messages)
{
if (b.EnqueuedTimeUtc < oldest)
{
oldMessageCount++;
}
}
BrokeredMessage bd = myQueueClient.Receive();
bd.DeadLetter();
//check for dead letter messages
QueueClient dlClient = messageFactory.CreateQueueClient(QueueClient.FormatDeadLetterPath(QueueName));
List <BrokeredMessage> dlMessages = new List <BrokeredMessage>(dlClient.PeekBatch(1000));
int i = dlMessages.Count;
//b.DeadLetter();
if (!namespaceManager.TopicExists(TopicName))
{
namespaceManager.CreateTopic(TopicName);
}
if (!namespaceManager.SubscriptionExists(TopicName, SubName))
{
namespaceManager.CreateSubscription(TopicName, SubName);
}
TopicClient topicClient = messageFactory.CreateTopicClient(TopicName);
topicClient.Send(new BrokeredMessage("Message"));
SubscriptionDescription s = namespaceManager.GetSubscription(TopicName, SubName);
SubscriptionClient subClient = messageFactory.CreateSubscriptionClient(TopicName, SubName);
List <BrokeredMessage> subMessages = new List <BrokeredMessage>(subClient.PeekBatch(1000));
BrokeredMessage bms = subClient.Receive();
bms.DeadLetter();
foreach (BrokeredMessage b in messages)
{
if (b.EnqueuedTimeUtc < oldest)
{
oldMessageCount++;
}
}
}
catch (Exception e)
{
Console.WriteLine("Unexpected exception {0}", e.ToString());
throw;
}
finally
{
if (messageFactory != null)
{
messageFactory.Close();
}
}
//Send Message
}
public override IEnumerable <BrokeredMessage> PeekNextBatch(long peekStartingPoint, int number)
{
return(Client.PeekBatch(peekStartingPoint, number));
}
