private static void ReceiveMessage()
{
TokenProvider tokenProvider = _namespaceManager.Settings.TokenProvider;;
if (_namespaceManager.TopicExists("DataCollectionTopic"))
{
MessagingFactory factory = MessagingFactory.Create(_namespaceManager.Address, tokenProvider);
//Same as Queue ReceiveMode.PeekLock is default
MessageReceiver receiver = factory.CreateMessageReceiver("DataCollectionTopic/subscriptions/Inventory");
MessageReceiver receiver1 = factory.CreateMessageReceiver("DataCollectionTopic/subscriptions/Dashboard");
BrokeredMessage receivedMessage = null;
try
{
Console.WriteLine($"From Inventory");
while ((receivedMessage = receiver.Receive()) != null)
{
ProcessMessage(receivedMessage);
receivedMessage.Complete();
}
Console.WriteLine($"From Dashboard");
while ((receivedMessage = receiver1.Receive()) != null)
{
ProcessMessage(receivedMessage);
receivedMessage.Complete();
}
factory.Close();
_namespaceManager.DeleteSubscription("DataCollectionTopic", "Inventory");
_namespaceManager.DeleteSubscription("DataCollectionTopic", "Dashboard");
_namespaceManager.DeleteTopic("DataCollectionTopic");
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
receivedMessage.Abandon();
}
#region With Collection
//IEnumerable<BrokeredMessage> receivedMessageList = receiver.ReceiveBatch(2);
//try
//{
// foreach (var item in receivedMessageList)
// {
// ProcessMessage(item);
// item.Complete();
// }
// factory.Close();
// _namespaceManager.DeleteSubscription("DataCollectionTopic", "Inventory");
// //_namespaceManager.DeleteSubscription("DataCollectionTopic", "Dashboard");
// //_namespaceManager.DeleteTopic("DataCollectionTopic");
//}
//catch (Exception ex)
//{
// Console.WriteLine(ex.ToString());
//}
#endregion
}
}
public IListener CreateListener(string path, bool allowRetries)
{
var receiver = MessagingFactory.CreateMessageReceiver(path,
allowRetries ? ReceiveMode.PeekLock : ReceiveMode.ReceiveAndDelete);
return(new PacketListener(receiver, this));
}
public void Scenario10_QueueRequestResponse(string queue, string replyTo)
{
WorkerThread receiverThread = new WorkerThread(this.Scenario11_QueueReceiver);
receiverThread.Start(queue);
ServiceBusConnectionStringBuilder builder = new ServiceBusConnectionStringBuilder(this.ConnectionString);
builder.TransportType = TransportType.Amqp;
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(this.ConnectionString);
MessageSender sender = factory.CreateMessageSender(queue);
MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes("Request"));
BrokeredMessage message = new BrokeredMessage(stream);
message.MessageId = Guid.NewGuid().ToString();
message.ReplyTo = replyTo;
message.Properties["time"] = DateTime.UtcNow;
sender.Send(message);
MessageReceiver receiver = factory.CreateMessageReceiver(replyTo);
BrokeredMessage response = receiver.Receive();
response.Complete();
sender.Close();
receiver.Close();
factory.Close();
}
static void ReceiveMessage()
{
TokenProvider tokenProvider = _namespaceManager.Settings.TokenProvider;
if (_namespaceManager.TopicExists("DataCollectionTopic"))
{
MessagingFactory factory = MessagingFactory.Create(_namespaceManager.Address, tokenProvider);
//MessageReceiver receiver = factory.CreateMessageReceiver("DataCollectionTopic/subscriptions/Inventory");
MessageReceiver receiver = factory.CreateMessageReceiver("DataCollectionTopic/subscriptions/Dashboard");
BrokeredMessage receivedMessage = null;
try
{
while ((receivedMessage = receiver.Receive()) != null)
{
ProcessMessage(receivedMessage);
receivedMessage.Complete();
}
factory.Close();
_namespaceManager.DeleteSubscription("DataCollectionTopic", "Inventory");
// _namespaceManager.DeleteTopic("DataCollectionTopic");
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
receivedMessage.Abandon();
}
}
}
static async Task AsyncMain()
{
MessagingFactory fact = MessagingFactory.CreateFromConnectionString(ConfigurationManager.AppSettings["ConnectionString"]);
var sender = fact.CreateMessageSender("destinationQueue", "queue2");
var receiver = fact.CreateMessageReceiver("queue2", ReceiveMode.PeekLock);
BrokeredMessage msg;
BrokeredMessage recMsg;
var i = 0;
while (i < 5000)
{
recMsg = await receiver.ReceiveAsync();
msg = new BrokeredMessage();
if (recMsg != null)
{
using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
msg.ScheduledEnqueueTimeUtc = DateTime.UtcNow.AddMinutes(6);
await recMsg.CompleteAsync();
await sender.SendAsync(msg);
scope.Complete();
i++;
}
}
}
}
public void HandleRegenerateSite()
{
long n = 0;
allMessages = factory.CreateMessageReceiver(regenSiteTopic + "/subscriptions/AllMessages", ReceiveMode.PeekLock);
while (_running)
{
BrokeredMessage message = allMessages.Receive();
if (message != null)
{
// let the message go back to the pool
Int64.TryParse(message.Properties["MessageNumber"].ToString(), out n);
message.Abandon();
try {
if (n > maxMessage)
{
maxMessage = n;
Console.WriteLine("\r\nAccepted message to regenerate site: {0} ", n);
RebuildWebsite();
}
else
{
// Console.WriteLine("\r\nSkipping: {0} ",n);
}
}
catch (Exception) {
}
Thread.Sleep(8000); // wait 5 seconds to give other consumers a chance on this message.
}
}
}
static async Task Deadletter()
{
try
{
string ServiceBusConnectionString = "Endpoint=sb://pricechange.servicebus.windows.net/;SharedAccessKeyName=cartitempricechange;SharedAccessKey=zOK+zZifCv4xX4f0af4Bctrg6tXeLKvwD9vhBT9YlZ8=";
string TopicName = "pricechange-topic";
string SubscriptionName = "pricechange-topic-subscription";
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(ServiceBusConnectionString);
string path = Microsoft.ServiceBus.Messaging.SubscriptionClient.FormatDeadLetterPath(TopicName, SubscriptionName);
Microsoft.ServiceBus.Messaging.MessageReceiver deadletterReceiver = factory.CreateMessageReceiver(path);
BrokeredMessage msg = deadletterReceiver.Receive();
if (msg != null)
{
var messageBody = new StreamReader(msg.GetBody <Stream>(), Encoding.UTF8).ReadToEnd();
var receivedMessage = JsonConvert.DeserializeObject <ServiceBusMessage>(messageBody);
Console.WriteLine($"Received message: UserInfo:{receivedMessage.Id}");
Console.ReadKey();
msg.Complete();
}
}
catch (Exception ex)
{
throw ex;
}
}
public void Start()
{
while (Enabled)
{
_factory = MessagingFactory.CreateFromConnectionString(_connectionString);
var messageReceiver = _factory.CreateMessageReceiver(_path, ReceiveMode.PeekLock);
var brokeredMessage = messageReceiver.Receive();
if (brokeredMessage == null)
{
continue;
}
var messageType = brokeredMessage.Label;
var replyTo = brokeredMessage.ReplyTo;
var replySessionId = brokeredMessage.ReplyToSessionId;
var messageHandler = MessageHandlerFactory.GetHandler(string.Empty);
messageHandler.Forwarder = _forwarder;
Console.WriteLine("Received message {0} on {1} and forwarded to {2}", messageType, _path, _forwarder);
var response = messageHandler.HandleRequestResponse(brokeredMessage);
if (!string.IsNullOrEmpty(replyTo))
{
var responseMessageClient = new ResponseMessageClient(_connectionString, replyTo, replySessionId);
Console.WriteLine("Send message response");
responseMessageClient.SendResponse((MemoryStream)response, messageType);
}
messageReceiver.Complete(brokeredMessage.LockToken);
}
}
protected static void AzureMessageConsumer(MessagingFactory f)
{
//use the already created messaging factory to create a msg receiver
MessageReceiver testQueueReceiver = f.CreateMessageReceiver("colors");
while (true)
{
using (BrokeredMessage retrievedMessage = testQueueReceiver.Receive())
{
try
{
string msgResult = retrievedMessage.GetBody<string>();
//call SP to insert the data into the proper table
InsertSQL(msgResult);
Console.WriteLine("Message received: " + msgResult);
retrievedMessage.Complete();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
retrievedMessage.Abandon();
}
}
}
}
private async void ProcessQueuedMessages(SubscriptionClient client)
{
try
{
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(connectionString);
MessageReceiver messageReceiver = factory.CreateMessageReceiver(SubscriptionClient.FormatDeadLetterPath(topicPath, subscriptionName));
IEnumerable <BrokeredMessage> messageSet = messageReceiver.ReceiveBatch(10000);
Debug.WriteLine("**** Received " + messageSet.Count() + " messages *****");
foreach (BrokeredMessage message in messageSet)
{
try
{
await processMessage(message);
Debug.WriteLine("**** ProcessQueuedMessages.processMessage completed ****");
}
catch (Exception e)
{
Debug.WriteLine("**** Error ProcessQueuedMessages.processMessage " + e.ToString() + " ****");
}
}
} catch
{
Debug.WriteLine("**** Error ProcessQueuedMessages ****");
}
}
private void Listen(ReceiveMode receiveMode)
{
var mr = _messagingFactory.CreateMessageReceiver(_subscription.FullPath, receiveMode);
while (_isListening)
{
BrokeredMessage message = null;
try
{
message = mr.Receive();
}
catch (TimeoutException)
{
ListeningTimedOut?.Invoke();
continue;
}
catch (OperationCanceledException) //When Cancel() is called on client or factory
{
return;
}
catch (Exception ex)
{
ExceptionOccured?.Invoke(message, ex);
return;
}
if (message == null)
{
continue;
}
try
{
var isMessageHandled = HandleMessage(message);
if (receiveMode == ReceiveMode.PeekLock)
{
if (isMessageHandled)
{
message.Complete();
}
else
{
message.Abandon();
}
}
}
catch (Exception ex)
{
if (receiveMode == ReceiveMode.PeekLock)
{
message.Abandon();
}
ExceptionOccured?.Invoke(message, ex);
}
Thread.Sleep(50);
}
}
private void InitConncection()
{
messagingFactory = MessagingFactory.CreateFromConnectionString(ConfigurationManager.ConnectionStrings["AzureSB"].ConnectionString);
messagingFactory.RetryPolicy = new RetryExponential(TimeSpan.FromSeconds(1), TimeSpan.FromMinutes(5), 10);
imageSender = messagingFactory.CreateMessageSender(ConfigurationManager.AppSettings["OutQ"]);
statusSender = messagingFactory.CreateMessageSender(ConfigurationManager.AppSettings["StatusQ"]);
configReciver = messagingFactory.CreateMessageReceiver(ConfigurationManager.AppSettings["InQ"]);
}
public ConnectToTopic()
{
connectionString = "Endpoint=sb://nitprodevstd.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=bVW5y5kVXRbG4FU0g45OUuWELdsGWVLsongkRjWS+uk=";
topicName = "nitorprodevstdtopic";
subscription1 = "nitorprodevstdtopicsub1";
messagingFactory = MessagingFactory.CreateFromConnectionString(connectionString);
messageSender = messagingFactory.CreateMessageSender(topicName);
messageReceiver = messagingFactory.CreateMessageReceiver(topicName + "/subscriptions/" + subscription1);
options = new OnMessageOptions();
}
static void Main(string[] args)
{
Console.Write("Enter some subscription name: ");
string name = Console.ReadLine();
var serviceNamespace = "msswit2013relay";
var issuerName = "owner";
var issuerSecret = "IqyIwa7gNjBO89HT+3Vd1CcoBbyibvcv6Hd92J+FtPg=";
Uri uri = ServiceBusEnvironment.CreateServiceUri("sb", serviceNamespace, string.Empty);
TokenProvider tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(issuerName, issuerSecret);
NamespaceManager namespaceManager = new NamespaceManager(uri, tokenProvider);
if (!namespaceManager.TopicExists("MyTopic"))
{
namespaceManager.CreateTopic(new TopicDescription("MyTopic"));
}
Console.WriteLine("topic ready");
if (!namespaceManager.SubscriptionExists("MyTopic", "subscription-" + name))
{
namespaceManager.CreateSubscription("MyTopic", "subscription-" + name);
}
Console.WriteLine("subscription ready");
MessagingFactory factory = MessagingFactory.Create(uri, tokenProvider);
MessageReceiver receiver = factory.CreateMessageReceiver("MyTopic/subscriptions/subscription-" + name);
while (true)
{
BrokeredMessage receivedMessage = receiver.Receive();
if (receivedMessage != null)
{
try
{
Console.WriteLine("label: {0}", receivedMessage.Label);
Console.WriteLine("login: {0}", receivedMessage.Properties["login"]);
Console.WriteLine("pass: {0}", receivedMessage.GetBody <ServiceBusTestMessage>().Password);
receivedMessage.Complete();
}
catch (Exception e)
{
receivedMessage.Abandon();
Console.WriteLine(e.Message);
}
}
else
{
Thread.Sleep(new TimeSpan(0, 0, 10));
}
}
}
public string RecieveMesage()
{
//Receiving a message
MessageReceiver testReceiver = _factory.CreateMessageReceiver(_queue);
BrokeredMessage message = testReceiver.Receive();
String messageText = message.GetBody <string>();
message.Complete();
return(messageText);
}
public MessageProcessor(string queueName, string serviceNameSpace, string issuer, string key)
{
// Create Token Provider and Service Uri
var tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(issuer, key);
var serviceUri = ServiceBusEnvironment.CreateServiceUri("sb", serviceNameSpace, string.Empty);
// Create a messaging receiver
_factory = MessagingFactory.Create(serviceUri, tokenProvider);
_messageReceiver = _factory.CreateMessageReceiver(queueName);
//_messageSender = _factory.CreateMessageSender(queueName);
}
public MessageProcessor(string queueName, string serviceNameSpace, string issuer, string key)
{
// Create Token Provider and Service Uri
var tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(issuer, key);
var serviceUri = ServiceBusEnvironment.CreateServiceUri("sb", serviceNameSpace, string.Empty);
// Create a messaging receiver
_factory = MessagingFactory.Create(serviceUri, tokenProvider);
_messageReceiver = _factory.CreateMessageReceiver(queueName);
//_messageSender = _factory.CreateMessageSender(queueName);
}
public MessageReceiver GetMessageReceiver(MessagingFactory factory, string queueSubscription)
{
try
{
return(factory.CreateMessageReceiver(queueSubscription));
}
catch (Exception ex)
{
throw;
}
}
public ConnectToQueue()
{
connectionString = "Endpoint=sb://nitprodev.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=ITfvDogxy7Kuc/wbTPu1HP7g1Mh7eqSvtaP/E6y3HH0=";
queueName = "nitprodevqueue";
messagingFactory = MessagingFactory.CreateFromConnectionString(connectionString);
messageSender = messagingFactory.CreateMessageSender(queueName);
messageReceiver = messagingFactory.CreateMessageReceiver(queueName);
options = new OnMessageOptions();
var client = QueueClient.CreateFromConnectionString(connectionString, queueName);
var deadQueue = QueueClient.CreateFromConnectionString(connectionString, QueueClient.FormatDeadLetterPath(client.Path));
}
public async Task StartAsync_CallsMessagingProviderToCreateReceiver()
{
MessageReceiver receiver = _messagingFactory.CreateMessageReceiver(_entityPath);
_mockMessagingProvider.Setup(p => p.CreateMessageReceiver(_messagingFactory, _entityPath)).Returns(receiver);
MessagingCommunicationException ex = await Assert.ThrowsAsync <MessagingCommunicationException>(async() =>
{
await _listener.StartAsync(CancellationToken.None);
});
Assert.Equal("No such host is known", ex.Message);
_mockMessagingProvider.VerifyAll();
}
public async Task StartAsync_CallsMessagingProviderToCreateReceiver()
{
MessageReceiver receiver = _messagingFactory.CreateMessageReceiver(_entityPath);
_mockMessagingProvider.Setup(p => p.CreateMessageReceiver(_messagingFactory, _entityPath)).Returns(receiver);
MessagingCommunicationException ex = await Assert.ThrowsAsync <MessagingCommunicationException>(async() =>
{
await _listener.StartAsync(CancellationToken.None);
});
Assert.Equal("Unable to connect to Service Bus using HTTP connectivity mode.", ex.Message);
_mockMessagingProvider.VerifyAll();
}
static void Main(string[] args)
{
TokenProvider token = TokenProvider.CreateSharedAccessSignatureTokenProvider("RootManageSharedAccessKey", "H+rYJ3XugZAx4AwBWbgkgiqBzdxiFOY2ZR9FicPK840=");
Uri path = ServiceBusEnvironment.CreateServiceUri("sb", "ajaybus", "");
MessagingFactory factory = MessagingFactory.Create(path, token);
MessageReceiver reciever = factory.CreateMessageReceiver("DetailmessageTopic/subscriptions/High");
BrokeredMessage msg;
while ((msg = reciever.Receive()) != null)
{
Console.WriteLine("hello");
Console.WriteLine("Message:" + msg.GetBody <String>() + "\t Priority: " + msg.Properties["priority"]);
msg.Complete();
}
Console.WriteLine("The High Priority Queue completed");
reciever = factory.CreateMessageReceiver("DetailmessageTopic/subscriptions/Low");
while ((msg = reciever.Receive()) != null)
{
Console.WriteLine("hello");
Console.WriteLine("Message:" + msg.GetBody <String>() + "\t Priority: " + msg.Properties["priority"]);
msg.Complete();
}
Console.WriteLine("The Low Priority Queue completed");
}
/// <summary>
/// Creates a <see cref="MessageReceiver"/> for the specified ServiceBus entity.
/// </summary>
/// <remarks>
/// You can override this method to customize the <see cref="MessageReceiver"/>.
/// </remarks>
/// <param name="factory">The <see cref="MessagingFactory"/> to use.</param>
/// <param name="entityPath">The ServiceBus entity to create a <see cref="MessageReceiver"/> for.</param>
/// <returns></returns>
public virtual MessageReceiver CreateMessageReceiver(MessagingFactory factory, string entityPath)
{
if (factory == null)
{
throw new ArgumentNullException("factory");
}
if (string.IsNullOrEmpty(entityPath))
{
throw new ArgumentNullException("entityPath");
}
MessageReceiver receiver = factory.CreateMessageReceiver(entityPath);
receiver.PrefetchCount = _config.PrefetchCount;
return(receiver);
}
public async Task ReceiveMessages()
{
messageReceiver = factory.CreateMessageReceiver(queuename);
stopwatch.Restart();
stopwatch.Start();
for (int i = 0; i < numberOfMessages; i++)
{
Task.Factory.StartNew(ReceiveMessage);
}
var elapsedMilliseconds = stopwatch.ElapsedMilliseconds;
Console.WriteLine("{0} messages received in {1} ms", numberOfMessages, elapsedMilliseconds);
Console.WriteLine("Received {0} per second", numberOfMessages == 0 ? 0L : (1000 * (long)numberOfMessages) / (long)elapsedMilliseconds);
}
static void Main(string[] args)
{
// ***************************************************************************************
// This sample demonstrates how to use MessagePeek feature to look into the content of
// Service bus entities (Queues , Subscriptions).
// ***************************************************************************************
Program.GetNamespaceAndCredentials();
MessagingFactory messagingFactory = MessagingFactory.CreateFromConnectionString(ServiceBusConnectionString);
MessageReceiver messageReciever = messagingFactory.CreateMessageReceiver(Program.ServiceBusentityPath);
BrokeredMessage msg;
while (true)
{
msg = messageReciever.Peek();
if (msg != null)
{
Console.WriteLine("{0} {1} - {2} - {3}", msg.EnqueuedTimeUtc.ToLocalTime().ToShortDateString(), msg.EnqueuedTimeUtc.ToLocalTime().ToLongTimeString(), msg.SequenceNumber, msg.Label);
var listViewItems = msg.Properties.Select(p => new[] { p.Key, p.Value.ToString() }).ToArray();
for (int propIndex = 0; propIndex < listViewItems.Length; propIndex++)
{
Console.Write("{0}: {1}\t", listViewItems[propIndex][0], listViewItems[propIndex][1]);
}
Stream stream = msg.GetBody <Stream>();
if (stream != null)
{
StreamReader reader = new StreamReader(stream);
string text = reader.ReadToEnd();
if (text != null)
{
Console.WriteLine("\n{0}\n", text);
}
}
}
else
{
break;
}
}
messagingFactory.Close();
Console.WriteLine("Press [Enter] to quit...");
Console.ReadLine();
}
public void NewThread()
{
string connectionString = "";
string topicPath = "";
string subscriptionName = "";
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(connectionString);
var deadLetterPath = SubscriptionClient.FormatDeadLetterPath(topicPath, subscriptionName);
var dlqMessageReceiver = factory.CreateMessageReceiver(deadLetterPath, ReceiveMode.ReceiveAndDelete);
var thr = Thread.CurrentThread.Name;
int messageBatchSize = 100;
while (dlqMessageReceiver.ReceiveBatch(messageBatchSize) != null)
{
Console.Write($"{thr}#");
}
}
public async Task ReceiveMessages()
{
messageReceiver = factory.CreateMessageReceiver(queuename);
stopwatch.Restart();
stopwatch.Start();
for (int i = 0; i < numberOfMessages; i++)
{
var message = await messageReceiver.ReceiveAsync();
await messageReceiver.CompleteAsync(message.LockToken);
}
var elapsedMilliseconds = stopwatch.ElapsedMilliseconds;
Console.WriteLine("{0} messages received in {1} ms", numberOfMessages, elapsedMilliseconds);
Console.WriteLine("Received {0} per second", numberOfMessages == 0 ? 0L : (1000 * (long)numberOfMessages) / (long)elapsedMilliseconds);
}
public async Task ReceiveMessages()
{
List <Task> tasks = new List <Task>();
messageReceiver = factory.CreateMessageReceiver(queuename);
stopwatch.Restart();
stopwatch.Start();
for (int i = 0; i < numberOfMessages; i++)
{
tasks.Add(Task.Factory.StartNew(ReceiveMessage));
}
Task.WaitAll(tasks.ToArray());
var elapsedMilliseconds = stopwatch.ElapsedMilliseconds;
Console.WriteLine("{0} messages received in {1} ms", numberOfMessages, elapsedMilliseconds);
Console.WriteLine("Received {0} per second", numberOfMessages == 0 ? 0L : (1000 * (long)numberOfMessages) / (long)elapsedMilliseconds);
}
static void Main(string[] args)
{
string connectionString = ConfigurationManager.AppSettings["ServiceBusConnection"];
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(connectionString);
var deadLetterPath = QueueClient.FormatDeadLetterPath("trade-input");
var dlqReceiver = factory.CreateMessageReceiver(deadLetterPath, ReceiveMode.ReceiveAndDelete);
BrokeredMessage message;
while ((message = dlqReceiver.Receive()) != null)
{
string body;
using (var stream = message.GetBody <Stream>())
using (var streamReader = new StreamReader(stream, Encoding.UTF8))
{
body = streamReader.ReadToEnd();
}
Console.WriteLine($"Message Received {body}");
}
Console.Read();
}
internal Binding(MessagingFactory messagingFactory, NamespaceManager namespaceManager, AzureQueueMqSettings settings, Action <string> logMessage, Action <string> logError)
{
var queueName = settings.QueueNameBuilderForSubscriber(typeof(T));
_receiver = messagingFactory.CreateMessageReceiver(queueName, ReceiveMode.PeekLock);
_excludeQueuesFromLogging = new LoggingConfiguration().ExcludeQueuesFromLogging();
if (!namespaceManager.QueueExists(queueName))
{
var queueDescription = new QueueDescription(queueName);
namespaceManager.CreateQueue(settings.QueueBuilderConfig(queueDescription, typeof(T)));
}
_receiver.OnMessage(message =>
{
try
{
var bodyStream = message.GetBody <Stream>();
using (var reader = new StreamReader(bodyStream))
{
var body = reader.ReadToEnd();
if (!_excludeQueuesFromLogging.Contains(queueName))
{
logMessage($"Received '{queueName}': {body}");
}
Subject.OnNext(JObject.Parse(body)["data"].ToObject <T>());
}
}
catch (Exception ex)
{
logError($"Message {queueName}': {message} -> consumer error: {ex}");
}
}, new OnMessageOptions {
AutoComplete = true
});
}
private static async Task <ReadResult> DoReadOperation(string connectionString, string path, TimeSpan timeout, bool useCached, Func <MessageReceiver, Task <ReadResult> > operation)
{
MessagingFactory mfactory = null;
MessageReceiver requestClient = null;
try
{
if (useCached)
{
requestClient = ServiceBusMessagingFactory.Instance.GetMessageReceiver(connectionString, path, timeout);
}
else
{
mfactory = ServiceBusMessagingFactory.CreateMessagingFactoryWithTimeout(connectionString, timeout);
requestClient = mfactory.CreateMessageReceiver(path);
}
return(await operation.Invoke(requestClient).ConfigureAwait(false));
}
finally
{
requestClient?.Close();
mfactory?.Close();
}
}
/// <summary>
/// Using a <see cref="Task"/>, clears all dead letters from the topic and subscription of the
/// provided <paramref name="topicName"/> and <paramref name="topicSubscriptionName"/>.
/// </summary>
/// <param name="topicName">The name of the topic.</param>
/// <param name="topicSubscriptionName">The name of the subscription.</param>
/// <returns></returns>
protected virtual CancellationTokenSource CleanUpDeadLetters(string topicName, string topicSubscriptionName)
{
var brokeredMessageRenewCancellationTokenSource = new CancellationTokenSource();
IDictionary <string, string> telemetryProperties = new Dictionary <string, string> {
{ "Type", "Azure/Servicebus" }
};
int lockIssues = 0;
Action <BrokeredMessage, IMessage> leaveDeadlLetterInQueue = (deadLetterBrokeredMessage, deadLetterMessage) =>
{
// Remove message from queue
try
{
deadLetterBrokeredMessage.Abandon();
lockIssues = 0;
}
catch (MessageLockLostException)
{
lockIssues++;
Logger.LogWarning(string.Format("The lock supplied for abandon for the skipped dead-letter message '{0}' is invalid.", deadLetterBrokeredMessage.MessageId));
}
Logger.LogDebug(string.Format("A dead-letter message of type {0} arrived with the id '{1}' but left in the queue due to settings.", deadLetterMessage.GetType().FullName, deadLetterBrokeredMessage.MessageId));
};
Action <BrokeredMessage> removeDeadlLetterFromQueue = deadLetterBrokeredMessage =>
{
// Remove message from queue
try
{
deadLetterBrokeredMessage.Complete();
lockIssues = 0;
}
catch (MessageLockLostException)
{
lockIssues++;
Logger.LogWarning(string.Format("The lock supplied for complete for the skipped dead-letter message '{0}' is invalid.", deadLetterBrokeredMessage.MessageId));
}
Logger.LogDebug(string.Format("A dead-letter message arrived with the id '{0}' but was removed as processing was skipped due to settings.", deadLetterBrokeredMessage.MessageId));
};
Task.Factory.StartNewSafely(() =>
{
int loop = 0;
while (!brokeredMessageRenewCancellationTokenSource.Token.IsCancellationRequested)
{
lockIssues = 0;
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(ConnectionString);
string deadLetterPath = SubscriptionClient.FormatDeadLetterPath(topicName, topicSubscriptionName);
MessageReceiver client = factory.CreateMessageReceiver(deadLetterPath, ReceiveMode.PeekLock);
IEnumerable <BrokeredMessage> brokeredMessages = client.ReceiveBatch(1000);
foreach (BrokeredMessage brokeredMessage in brokeredMessages)
{
if (lockIssues > 10)
{
break;
}
try
{
Logger.LogDebug(string.Format("A dead-letter message arrived with the id '{0}'.", brokeredMessage.MessageId));
string messageBody = brokeredMessage.GetBody <string>();
// Closure protection
BrokeredMessage message = brokeredMessage;
try
{
AzureBusHelper.ReceiveEvent
(
messageBody,
@event =>
{
bool isRequired = BusHelper.IsEventRequired(@event.GetType());
if (!isRequired)
{
removeDeadlLetterFromQueue(message);
}
else
{
leaveDeadlLetterInQueue(message, @event);
}
return(true);
},
string.Format("id '{0}'", brokeredMessage.MessageId),
() =>
{
removeDeadlLetterFromQueue(message);
},
() => { }
);
}
catch
{
AzureBusHelper.ReceiveCommand
(
messageBody,
command =>
{
bool isRequired = BusHelper.IsEventRequired(command.GetType());
if (!isRequired)
{
removeDeadlLetterFromQueue(message);
}
else
{
leaveDeadlLetterInQueue(message, command);
}
return(true);
},
string.Format("id '{0}'", brokeredMessage.MessageId),
() =>
{
removeDeadlLetterFromQueue(message);
},
() => { }
);
}
}
catch (Exception exception)
{
TelemetryHelper.TrackException(exception, null, telemetryProperties);
// Indicates a problem, unlock message in queue
Logger.LogError(string.Format("A dead-letter message arrived with the id '{0}' but failed to be process.", brokeredMessage.MessageId), exception: exception);
try
{
brokeredMessage.Abandon();
}
catch (MessageLockLostException)
{
lockIssues++;
Logger.LogWarning(string.Format("The lock supplied for abandon for the skipped dead-letter message '{0}' is invalid.", brokeredMessage.MessageId));
}
}
}
client.Close();
if (loop++ % 5 == 0)
{
loop = 0;
Thread.Yield();
}
else
{
Thread.Sleep(500);
}
}
try
{
brokeredMessageRenewCancellationTokenSource.Dispose();
}
catch (ObjectDisposedException) { }
}, brokeredMessageRenewCancellationTokenSource.Token);
return(brokeredMessageRenewCancellationTokenSource);
}
/// <summary>
/// Creates a <see cref="MessageReceiver"/> for the specified ServiceBus entity.
/// </summary>
/// <remarks>
/// You can override this method to customize the <see cref="MessageReceiver"/>.
/// </remarks>
/// <param name="factory">The <see cref="MessagingFactory"/> to use.</param>
/// <param name="entityPath">The ServiceBus entity to create a <see cref="MessageReceiver"/> for.</param>
/// <returns></returns>
public virtual MessageReceiver CreateMessageReceiver(MessagingFactory factory, string entityPath)
{
if (factory == null)
{
throw new ArgumentNullException("factory");
}
if (string.IsNullOrEmpty(entityPath))
{
throw new ArgumentNullException("entityPath");
}
MessageReceiver receiver = factory.CreateMessageReceiver(entityPath);
receiver.PrefetchCount = _config.PrefetchCount;
return receiver;
}
static async Task RunDeviceEndpoint(IPEndPoint deviceEP, MessagingFactory messagingFactory)
{
var deviceServer = new TcpListener(deviceEP);
deviceServer.Start(10);
try
{
do
{
TcpClient connection = await deviceServer.AcceptTcpClientAsync();
if (connection != null)
{
try
{
var pendingSessions = new Queue<string>();
connection.NoDelay = true; // flush writes immediately to the wire
connection.ReceiveTimeout = timeout;
NetworkStream deviceConnectionStream = connection.GetStream();
var readBuffer = new byte[64];
if (await deviceConnectionStream.ReadAsync(readBuffer, 0, 4) == 4)
{
int deviceId = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(readBuffer, 0));
try
{
Task<BrokeredMessage> queueReceive = null;
Task<int> socketRead = null;
Task pingDelay = null;
var cancelPing = new CancellationTokenSource();
// set up the receiver for the per-device queue and senbder for the response queue
var deviceQueueReceiver = messagingFactory.CreateMessageReceiver(string.Format("dev-{0:X8}", deviceId), ReceiveMode.PeekLock);
var responseQueueSender = messagingFactory.CreateMessageSender(string.Format("ingress"));
do
{
// receive from the queue
queueReceive = queueReceive ?? deviceQueueReceiver.ReceiveAsync();
// read from the socket
socketRead = socketRead ?? deviceConnectionStream.ReadAsync(readBuffer, 0, 1);
// ping delay
pingDelay = pingDelay ?? Task.Delay(TimeSpan.FromSeconds(235), cancelPing.Token);
// wait for any of the four operations (including completion) to be done
var completedTask = await Task.WhenAny(queueReceive, socketRead, pingDelay, ClosingEvent.Task);
if (completedTask == socketRead)
{
try
{
// read from the socket completed and not a ping
if (socketRead.Result == 1)
{
if (readBuffer[0] != PingFrame[0])
{
await responseQueueSender.SendAsync(new BrokeredMessage()
{
SessionId = pendingSessions.Dequeue(),
Properties = {{"Ack", (int) readBuffer[0]}}
});
}
}
else
{
// no more data from the socket. Break out of the loop.
break;
}
}
finally
{
socketRead = null;
}
}
else if (completedTask == queueReceive)
{
try
{
// read from the queue completed
var message = queueReceive.Result;
if (message != null)
{
var command = message.Properties["Cmd"] as string;
if (command != null)
{
switch (command.ToUpperInvariant())
{
case "ON":
pendingSessions.Enqueue(message.ReplyToSessionId);
await deviceConnectionStream.WriteAsync(OnFrame, 0, OnFrame.Length);
await message.CompleteAsync();
cancelPing.Cancel();
break;
case "OFF":
pendingSessions.Enqueue(message.ReplyToSessionId);
await deviceConnectionStream.WriteAsync(OffFrame, 0, OffFrame.Length);
await message.CompleteAsync();
cancelPing.Cancel();
break;
}
}
}
}
finally
{
queueReceive = null;
}
}
else if (completedTask == pingDelay)
{
try
{
if (pingDelay.IsCanceled)
{
cancelPing = new CancellationTokenSource();
}
else
{
await deviceConnectionStream.WriteAsync(PingFrame, 0, PingFrame.Length);
}
}
finally
{
pingDelay = null;
}
}
else
{
// closing event was fired
break;
}
}
while (true);
}
finally
{
connection.Close();
}
}
else
{
connection.Close();
}
}
catch (SocketException se)
{
// log
Trace.TraceError(se.Message);
connection.Close();
}
catch (IOException e)
{
Trace.TraceError(e.Message);
connection.Close();
}
catch (Exception e)
{
Trace.TraceError(e.Message);
}
}
} while (true);
}
finally
{
deviceServer.Stop();
}
}
