public virtual void Duplex_09_StopListening()
{
ClientMockFarm aClients = new ClientMockFarm(MessagingSystemFactory, ChannelId, 3);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
aClients.OpenConnectionsAsync();
Assert.IsTrue(aClients.Clients[0].OutputChannel.IsConnected);
Assert.IsTrue(aClients.Clients[1].OutputChannel.IsConnected);
Assert.IsTrue(aClients.Clients[2].OutputChannel.IsConnected);
aClients.WaitUntilAllConnectionsAreOpen(1000);
aService.WaitUntilResponseReceiversConnectNotified(3, 1000);
aService.InputChannel.StopListening();
Assert.IsFalse(aService.InputChannel.IsListening);
//aService.WaitUntilAllResponseReceiversDisconnectNotified(1000);
aClients.WaitUntilAllConnectionsAreClosed(1000);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClients.CloseAllConnections();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
// Note: This method is called from the message receiving thread.
private void HandleMessage(MessageContext messageContext)
{
using (EneterTrace.Entering())
{
if (messageContext.ProtocolMessage.MessageType == EProtocolMessageType.MessageReceived)
{
EneterTrace.Debug("REQUEST MESSAGE RECEIVED");
myDispatchingAfterMessageReading.Invoke(() =>
{
Dispatcher.Invoke(() => NotifyMessageReceived(messageContext, messageContext.ProtocolMessage));
});
}
else if (messageContext.ProtocolMessage.MessageType == EProtocolMessageType.OpenConnectionRequest)
{
EneterTrace.Debug("CLIENT CONNECTION RECEIVED");
myDispatchingAfterMessageReading.Invoke(() =>
{
Dispatcher.Invoke(() => Notify(ResponseReceiverConnected, messageContext.ProtocolMessage.ResponseReceiverId, messageContext.SenderAddress));
});
}
else if (messageContext.ProtocolMessage.MessageType == EProtocolMessageType.CloseConnectionRequest)
{
EneterTrace.Debug("CLIENT DISCONNECTION RECEIVED");
myDispatchingAfterMessageReading.Invoke(() =>
{
Dispatcher.Invoke(() => Notify(ResponseReceiverDisconnected, messageContext.ProtocolMessage.ResponseReceiverId, messageContext.SenderAddress));
});
}
else
{
EneterTrace.Warning(TracedObject + ErrorHandler.FailedToReceiveMessageBecauseIncorrectFormat);
}
}
}
public virtual void Duplex_10_DisconnectResponseReceiver()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
aClient.OutputChannel.OpenConnection();
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
aClient.WaitUntilConnectionOpenIsNotified(1000);
//string aConnectedResponseReceiverId = aService.ConnectedResponseReceivers[0].ResponseReceiverId;
aService.InputChannel.DisconnectResponseReceiver(aService.ConnectedResponseReceivers.First().ResponseReceiverId);
aClient.WaitUntilConnectionClosedIsNotified(1000);
//aService.WaitUntilAllResponseReceiversDisconnectNotified(1000);
//Assert.AreEqual(aConnectedResponseReceiverId, aService.DisconnectedResponseReceivers[0].ResponseReceiverId);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
// A message from the client was received.
private void OnMessageFromClientReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
MessageBusMessage aMessageBusMessage;
try
{
aMessageBusMessage = mySerializer.Deserialize <MessageBusMessage>(e.Message);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "failed to deserialize message from service. The service will be disconnected.", err);
UnregisterClient(e.ResponseReceiverId, true, true);
return;
}
if (aMessageBusMessage.Request == EMessageBusRequest.ConnectClient)
{
EneterTrace.Debug("CLIENT OPENS CONNECTION TO '" + aMessageBusMessage.Id + "'.");
RegisterClient(e.ResponseReceiverId, aMessageBusMessage.Id);
}
else if (aMessageBusMessage.Request == EMessageBusRequest.SendRequestMessage)
{
ForwardMessageToService(e.ResponseReceiverId, aMessageBusMessage);
}
}
}
public void FilterTest()
{
EneterTrace.DetailLevel = EneterTrace.EDetailLevel.Debug;
// Write traces to the string.
EneterTrace.TraceLog = new StringWriter();
try
{
// Eneter trace.
EneterTrace.NameSpaceFilter = new Regex("^Eneter");
EneterTrace.Debug("This message shall be traced.");
Thread.Sleep(500);
string aMessage = EneterTrace.TraceLog.ToString();
Assert.IsTrue(aMessage.Contains("This message shall be traced."));
// Create the new "log".
EneterTrace.TraceLog = new StringWriter();
// Eneter trace shall be filtered out.
EneterTrace.NameSpaceFilter = new Regex(@"^(?!\bEneter\b)");
EneterTrace.Debug("This message shall not be traced.");
Thread.Sleep(500);
Assert.AreEqual("", EneterTrace.TraceLog.ToString());
}
finally
{
EneterTrace.TraceLog = null;
EneterTrace.NameSpaceFilter = null;
EneterTrace.DetailLevel = EneterTrace.EDetailLevel.Short;
}
}
public void Invoke(Action workItem)
{
using (EneterTrace.Entering())
{
EneterTrace.Debug(myDispatcherTraceMessage);
myWorkingThreadDispatcher.BeginInvoke(workItem);
}
}
public virtual void Duplex_06_OpenCloseConnection()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
// Open the connection.
aClient.OutputChannel.OpenConnection();
Assert.IsTrue(aClient.OutputChannel.IsConnected);
// handling open connection on the client side.
EneterTrace.Info("1");
aClient.WaitUntilConnectionOpenIsNotified(1000);
Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedOpenConnection.ChannelId);
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedOpenConnection.ResponseReceiverId);
// handling open connection on the service side.
EneterTrace.Info("2");
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
Assert.AreEqual(1, aService.ConnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.ConnectedResponseReceivers[0].ResponseReceiverId);
}
aClient.OutputChannel.CloseConnection();
Assert.IsFalse(aClient.OutputChannel.IsConnected);
EneterTrace.Info("3");
//aClient.WaitUntilConnectionClosedIsNotified(1000);
//Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedCloseConnection.ChannelId);
//Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedCloseConnection.ResponseReceiverId);
EneterTrace.Info("4");
aService.WaitUntilAllResponseReceiversDisconnectNotified(1000);
Assert.AreEqual(1, aService.DisconnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.DisconnectedResponseReceivers.First().ResponseReceiverId);
}
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
private void SendOfflineBroadcastResponseMessage(string channelId, object broadcastMessage,
int numberOfClients, int numberOfMessages,
int openConnectionTimeout,
int allMessagesReceivedTimeout)
{
ThreadPool.SetMinThreads(50, 2);
ClientMockFarm aClientFarm = new ClientMockFarm(MessagingSystem, channelId, numberOfClients);
ServiceMock aService = new ServiceMock(MessagingSystem, channelId);
try
{
aService.InputChannel.StartListening();
// Send broadcasts.
for (int i = 0; i < numberOfMessages; ++i)
{
aService.InputChannel.SendResponseMessage("*", broadcastMessage);
}
Thread.Sleep(500);
aClientFarm.OpenConnectionsAsync();
aClientFarm.WaitUntilAllConnectionsAreOpen(openConnectionTimeout);
aService.WaitUntilResponseReceiversConnectNotified(numberOfClients, openConnectionTimeout);
Assert.AreEqual(aClientFarm.Clients.Count(), aService.ConnectedResponseReceivers.Count());
foreach (ClientMock aClient in aClientFarm.Clients)
{
Assert.IsTrue(aService.ConnectedResponseReceivers.Any(x => x.ResponseReceiverId == aClient.OutputChannel.ResponseReceiverId));
}
PerformanceTimer aStopWatch = new PerformanceTimer();
aStopWatch.Start();
aClientFarm.WaitUntilAllResponsesAreReceived(numberOfMessages, allMessagesReceivedTimeout);
aStopWatch.Stop();
foreach (DuplexChannelMessageEventArgs aResponseMessage in aClientFarm.ReceivedResponses)
{
Assert.AreEqual(broadcastMessage, aResponseMessage.Message);
}
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClientFarm.CloseAllConnections();
aService.InputChannel.StopListening();
//EneterTrace.StopProfiler();
Thread.Sleep(500);
}
}
private double calculateRange(double from, double to)
{
using (EneterTrace.Entering())
{
// Calculate pi
double aResult = 0.0;
double aDx = 0.00001;
for (double x = from; x < to; x += aDx)
{
EneterTrace.Debug("blblblblblblblblblblblblbbllblbblblblblbl");
aResult += 2 * Math.Sqrt(1 - x * x) * aDx;
}
return(aResult);
}
}
public virtual void Duplex_11_CloseConnection()
{
ClientMockFarm aClients = new ClientMockFarm(MessagingSystemFactory, ChannelId, 2);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
aClients.OpenConnectionsAsync();
Assert.IsTrue(aClients.Clients[0].OutputChannel.IsConnected);
Assert.IsTrue(aClients.Clients[1].OutputChannel.IsConnected);
aClients.WaitUntilAllConnectionsAreOpen(1000);
aService.WaitUntilResponseReceiversConnectNotified(2, 1000);
string aResponseReceiverId1 = aService.ConnectedResponseReceivers[0].ResponseReceiverId;
// Cient 1 closes the connection.
aClients.Clients[0].OutputChannel.CloseConnection();
Assert.IsFalse(aClients.Clients[0].OutputChannel.IsConnected);
//aClients.Clients[0].WaitUntilConnectionClosedIsNotified(1000);
aService.WaitUntilResponseRecieverIdDisconnectNotified(aResponseReceiverId1, 2000);
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClients.Clients[0].OutputChannel.ResponseReceiverId, aService.DisconnectedResponseReceivers[0].ResponseReceiverId);
}
// Client 2 can send message.
aClients.Clients[1].OutputChannel.SendMessage(myRequestMessage);
aService.WaitUntilMessagesAreReceived(1, 1000);
Assert.AreEqual(myRequestMessage, aService.ReceivedMessages[0].Message);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClients.CloseAllConnections();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
public virtual void Duplex_12_CloseFromConnectionOpened()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
aClient.DoOnConnectionOpen((x, y) =>
{
if (MessagingSystemFactory is NamedPipeMessagingSystemFactory)
{
Thread.Sleep(500);
}
aClient.OutputChannel.CloseConnection();
});
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
aClient.OutputChannel.OpenConnection();
aClient.WaitUntilConnectionOpenIsNotified(1000);
if (MessagingSystemFactory is SynchronousMessagingSystemFactory == false)
{
aService.WaitUntilResponseReceiversConnectNotified(1, 5000);
}
// Client is disconnected.
//aClient.WaitUntilConnectionClosedIsNotified(1000);
// Client should be disconnected from the event handler.
aService.WaitUntilAllResponseReceiversDisconnectNotified(2000);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
public void A13_TimeoutedResponseReceiver()
{
ClientMock aClient = new ClientMock(MessagingSystem, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystem, ChannelId);
try
{
aService.InputChannel.StartListening();
// Open the connection.
aClient.OutputChannel.OpenConnection();
Assert.IsTrue(aClient.OutputChannel.IsConnected);
// handling open connection on the client side.
EneterTrace.Info("1");
aClient.WaitUntilConnectionOpenIsNotified(2000);
Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedOpenConnection.ChannelId);
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedOpenConnection.ResponseReceiverId);
// handling open connection on the service side.
EneterTrace.Info("2");
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
Assert.AreEqual(1, aService.ConnectedResponseReceivers.Count());
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.ConnectedResponseReceivers[0].ResponseReceiverId);
aClient.OutputChannel.CloseConnection();
Assert.IsFalse(aClient.OutputChannel.IsConnected);
// Service will disconnect the response receiver when the offline timout is exceeded.
EneterTrace.Info("3");
aService.WaitUntilAllResponseReceiversDisconnectNotified(2000);
Assert.AreEqual(1, aService.DisconnectedResponseReceivers.Count());
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.DisconnectedResponseReceivers.First().ResponseReceiverId);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
private void OnMessageReceived(object sender, TypedRequestReceivedEventArgs <Interval> e)
{
using (EneterTrace.Entering())
{
EneterTrace.Debug(string.Format("Address: {0} From: {1} To: {2}",
myRequestReceiver.AttachedDuplexInputChannel.ChannelId,
e.RequestMessage.From, e.RequestMessage.To));
double aResult = 0.0;
double aDx = 0.000000001;
for (double x = e.RequestMessage.From; x < e.RequestMessage.To; x += aDx)
{
aResult += 2 * Math.Sqrt(1 - x * x) * aDx;
}
myRequestReceiver.SendResponseMessage(e.ResponseReceiverId, aResult);
}
}
private void OnMessageFromMessageBusReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
MessageBusMessage aMessageBusMessage;
try
{
aMessageBusMessage = mySerializer.Deserialize <MessageBusMessage>(e.Message);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "failed to deserialize message.", err);
return;
}
if (aMessageBusMessage.Request == EMessageBusRequest.ConfirmClient)
{
// Indicate the connection is open and relase the waiting in the OpenConnection().
myOpenConnectionConfirmed.Set();
EneterTrace.Debug("CONNECTION CONFIRMED");
}
else if (aMessageBusMessage.Request == EMessageBusRequest.SendResponseMessage)
{
Action <MessageContext> aResponseHandler = myResponseMessageHandler;
if (aResponseHandler != null)
{
ProtocolMessage aProtocolMessage = new ProtocolMessage(EProtocolMessageType.MessageReceived, myServiceId, aMessageBusMessage.MessageData);
MessageContext aMessageContext = new MessageContext(aProtocolMessage, e.SenderAddress);
try
{
aResponseHandler(aMessageContext);
}
catch (Exception err)
{
EneterTrace.Warning(TracedObject + ErrorHandler.DetectedException, err);
}
}
}
}
}
public virtual void Duplex_09_StopListening_SendMessage()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
aClient.OutputChannel.OpenConnection();
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
aService.InputChannel.StopListening();
Assert.IsFalse(aService.InputChannel.IsListening);
bool isSomeException = false;
try
{
// Try to send a message via the duplex output channel.
aClient.OutputChannel.SendMessage(myRequestMessage);
}
catch
{
// Because the duplex input channel is not listening the sending must
// fail with an exception. The type of the exception depends from the type of messaging system.
isSomeException = true;
}
Assert.IsTrue(isSomeException);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
public void Execute(Action job)
{
using (ThreadLock.Lock(myJobQueue))
{
if (!myIsWorkingThreadRunning)
{
myIsWorkingThreadRunning = true;
EneterThreadPool.QueueUserWorkItem(DoJobs);
// If we are tracing then wait until the message about the working thread is ready.
if (EneterTrace.DetailLevel == EneterTrace.EDetailLevel.Debug)
{
myTraceMessageReady.WaitOne();
}
}
// Trace into which thread it forwards the job.
EneterTrace.Debug(myInvokeTraceMessage);
myJobQueue.Enqueue(job);
}
}
public virtual void Duplex_13_DisconnectFromResponseReceiverConnected()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
aService.DoOnResponseReceiverConnected((x, y) =>
{
if (MessagingSystemFactory is SynchronousMessagingSystemFactory == false)
{
aClient.WaitUntilConnectionOpenIsNotified(1000);
}
aService.InputChannel.DisconnectResponseReceiver(y.ResponseReceiverId);
});
try
{
aService.InputChannel.StartListening();
// The ecent will try to close connection.
aClient.OutputChannel.OpenConnection();
aClient.WaitUntilConnectionOpenIsNotified(1000);
//aService.WaitUntilAllResponseReceiversDisconnectNotified(1000);
aClient.WaitUntilConnectionClosedIsNotified(1000);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
private void HandleResponse(MessageContext messageContext)
{
using (EneterTrace.Entering())
{
if (messageContext == null ||
messageContext.ProtocolMessage == null ||
messageContext.ProtocolMessage.MessageType == EProtocolMessageType.CloseConnectionRequest)
{
EneterTrace.Debug("CLIENT DISCONNECTED RECEIVED");
myDispatchingAfterResponseReading.Invoke(() => CleanAfterConnection(false, true));
}
else if (messageContext.ProtocolMessage.MessageType == EProtocolMessageType.MessageReceived)
{
EneterTrace.Debug("RESPONSE MESSAGE RECEIVED");
myDispatchingAfterResponseReading.Invoke(() => Dispatcher.Invoke(() => NotifyResponseMessageReceived(messageContext.ProtocolMessage.Message, messageContext.SenderAddress)));
}
else
{
EneterTrace.Warning(TracedObject + ErrorHandler.FailedToReceiveMessageBecauseIncorrectFormat);
}
}
}
private void OnMessageFromServiceReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
MessageBusMessage aMessageBusMessage;
try
{
aMessageBusMessage = mySerializer.Deserialize <MessageBusMessage>(e.Message);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "failed to deserialize message from service. The service will be disconnected.", err);
UnregisterService(e.ResponseReceiverId);
return;
}
if (aMessageBusMessage.Request == EMessageBusRequest.RegisterService)
{
EneterTrace.Debug("REGISTER SERVICE: " + aMessageBusMessage.Id);
RegisterService(aMessageBusMessage.Id, e.ResponseReceiverId);
}
else if (aMessageBusMessage.Request == EMessageBusRequest.SendResponseMessage)
{
// Note: forward the same message - it does not have to be serialized again.
ForwardMessageToClient(aMessageBusMessage.Id, e.ResponseReceiverId, e.Message, aMessageBusMessage.MessageData);
}
else if (aMessageBusMessage.Request == EMessageBusRequest.DisconnectClient)
{
EneterTrace.Debug("SERVICE DISCONNECTS CLIENT");
UnregisterClient(aMessageBusMessage.Id, false, true);
}
else if (aMessageBusMessage.Request == EMessageBusRequest.ConfirmClient)
{
EneterTrace.Debug("SERVICE CONFIRMS CLIENT");
ForwardMessageToClient(aMessageBusMessage.Id, e.ResponseReceiverId, e.Message, null);
}
}
}
public virtual void Duplex_08_OpenFromConnectionClosed()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
bool anIsConnected = false;
aClient.DoOnConnectionClosed((x, y) =>
{
EneterTrace.Debug("DoOnConnectionClosed");
anIsConnected = aClient.OutputChannel.IsConnected;
if (MessagingSystemFactory is SharedMemoryMessagingSystemFactory)
{
Thread.Sleep(300);
}
aClient.OutputChannel.OpenConnection();
});
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
try
{
aService.InputChannel.StartListening();
// Client opens the connection.
aClient.OutputChannel.OpenConnection();
aClient.WaitUntilConnectionOpenIsNotified(1000);
Assert.IsFalse(anIsConnected);
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
string aConnectedResponseReceiverId = aService.ConnectedResponseReceivers[0].ResponseReceiverId;
aClient.ClearTestResults();
aService.ClearTestResults();
// Service disconnects the client.
aService.InputChannel.DisconnectResponseReceiver(aConnectedResponseReceiverId);
//aService.WaitUntilResponseRecieverIdDisconnectNotified(aConnectedResponseReceiverId, 1000);
aClient.WaitUntilConnectionClosedIsNotified(3000);
//Assert.AreEqual(aConnectedResponseReceiverId, aService.DisconnectedResponseReceivers[0].ResponseReceiverId);
// Client should open the connection again.
aClient.WaitUntilConnectionOpenIsNotified(1000);
if (MessagingSystemFactory is SynchronousMessagingSystemFactory == false)
{
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
}
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(500);
}
}
private void UnregisterService(string serviceResponseReceiverId)
{
using (EneterTrace.Entering())
{
List <string> aClientsToDisconnect = new List <string>();
string aServiceId = null;
using (ThreadLock.Lock(myConnectionLock))
{
// Remove the service.
myConnectedServices.RemoveWhere(x =>
{
if (x.ServiceResponseReceiverId == serviceResponseReceiverId)
{
aServiceId = x.ServiceId;
return(true);
}
return(false);
});
// Remove all clients connected to the service.
myConnectedClients.RemoveWhere(x =>
{
if (x.ServiceResponseReceiverId == serviceResponseReceiverId)
{
aClientsToDisconnect.Add(x.ClientResponseReceiverId);
// Indicate the item shall be removed.
return(true);
}
return(false);
});
}
// Close connections with clients.
if (myClientConnector.IsDuplexInputChannelAttached)
{
foreach (string aClientResponseReceiverId in aClientsToDisconnect)
{
IDuplexInputChannel anInputChannel = myClientConnector.AttachedDuplexInputChannel;
if (anInputChannel != null)
{
anInputChannel.DisconnectResponseReceiver(aClientResponseReceiverId);
}
}
}
IDuplexInputChannel anInputChannel2 = myServiceConnector.AttachedDuplexInputChannel;
if (anInputChannel2 != null)
{
anInputChannel2.DisconnectResponseReceiver(serviceResponseReceiverId);
}
if (ServiceUnregistered != null && !string.IsNullOrEmpty(aServiceId))
{
EneterTrace.Debug("SERVICE '" + aServiceId + "' UNREGISTERED");
try
{
MessageBusServiceEventArgs anEvent = new MessageBusServiceEventArgs(aServiceId, serviceResponseReceiverId);
ServiceUnregistered(this, anEvent);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + ErrorHandler.DetectedException, err);
}
}
}
}
public void A17_Online_Offline_Events()
{
// Duplex output channel without queue - it will not try to reconnect.
IBufferedDuplexOutputChannel aDuplexOutputChannel = (IBufferedDuplexOutputChannel)MessagingSystem.CreateDuplexOutputChannel(ChannelId);
IBufferedDuplexInputChannel aDuplexInputChannel = (IBufferedDuplexInputChannel)MessagingSystem.CreateDuplexInputChannel(ChannelId);
AutoResetEvent aConnectionsCompletedEvent = new AutoResetEvent(false);
aDuplexInputChannel.ResponseReceiverConnected += (x, y) =>
{
aConnectionsCompletedEvent.Set();
};
AutoResetEvent aResponseReceiverOnline = new AutoResetEvent(false);
aDuplexInputChannel.ResponseReceiverOnline += (x, y) =>
{
aResponseReceiverOnline.Set();
};
AutoResetEvent aResponseReceiverOffline = new AutoResetEvent(false);
aDuplexInputChannel.ResponseReceiverOffline += (x, y) =>
{
aResponseReceiverOffline.Set();
};
AutoResetEvent aOnlineIsRaised = new AutoResetEvent(false);
bool aOnlineStateAfterOnline = false;
aDuplexOutputChannel.ConnectionOnline += (x, y) =>
{
aOnlineStateAfterOnline = aDuplexOutputChannel.IsOnline;
EneterTrace.Debug(aOnlineStateAfterOnline.ToString());
aOnlineIsRaised.Set();
};
AutoResetEvent aOfflineIsRaised = new AutoResetEvent(false);
bool aOnlineStateAfterOffline = false;
aDuplexOutputChannel.ConnectionOffline += (x, y) =>
{
aOnlineStateAfterOffline = aDuplexOutputChannel.IsOnline;
aOfflineIsRaised.Set();
};
try
{
aDuplexOutputChannel.OpenConnection();
if (!aOfflineIsRaised.WaitOne(2000))
{
Assert.Fail("Offline event was not raised.");
}
Assert.IsFalse(aOnlineStateAfterOffline);
// start listening
aDuplexInputChannel.StartListening();
if (!aOnlineIsRaised.WaitOne(2000))
{
Assert.Fail("Online event was not raised.");
}
Assert.IsTrue(aOnlineStateAfterOnline);
if (!aResponseReceiverOnline.WaitOne(2000))
{
Assert.Fail("ResponseReceiverOnline event was not raised.");
}
// Wait until the connection is open.
if (!aConnectionsCompletedEvent.WaitOne(2000))
{
Assert.Fail("Connection was not open.");
}
// Disconnect the response receiver.
aDuplexInputChannel.DisconnectResponseReceiver(aDuplexOutputChannel.ResponseReceiverId);
if (!aOfflineIsRaised.WaitOne(2000))
{
Assert.Fail("Offline event was not raised after disconnection.");
}
Assert.IsFalse(aOnlineStateAfterOffline);
if (aResponseReceiverOffline.WaitOne(500))
{
Assert.Fail("ResponseReceiverOffline event shall NOT be raised if DisconnectResponseReceiver was called.");
}
// The duplex output channel will try to connect again, therefore wait until connected.
aConnectionsCompletedEvent.WaitOne();
if (!aOnlineIsRaised.WaitOne(2000))
{
Assert.Fail("Online event was not raised after reconnection.");
}
Assert.IsTrue(aOnlineStateAfterOnline);
if (!aResponseReceiverOnline.WaitOne(2000))
{
Assert.Fail("ResponseReceiverOnline event was not raised.");
}
// duplex output channel closes the connection.
aDuplexOutputChannel.CloseConnection();
if (!aResponseReceiverOffline.WaitOne(2000))
{
Assert.Fail("ResponseReceiverOffline event was not raised.");
}
if (aOfflineIsRaised.WaitOne(500))
{
Assert.Fail("Offline event shall NOT be raised after CloseConnection().");
}
Assert.IsFalse(aOnlineStateAfterOffline);
}
finally
{
aDuplexOutputChannel.CloseConnection();
aDuplexInputChannel.StopListening();
}
}
// This method is called when a message from the service is received.
// This can be either the response for a request or it can be an event raised in the service.
protected override void OnResponseMessageReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
RpcMessage aMessage = null;
try
{
aMessage = mySerializer.ForResponseReceiver(e.ResponseReceiverId).Deserialize <RpcMessage>(e.Message);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "failed to deserialize incoming message.", err);
return;
}
// If it is a response for a call.
if (aMessage.Request == ERpcRequest.Response)
{
EneterTrace.Debug("RETURN FROM RPC RECEIVED");
// Try to find if there is a pending request waiting for the response.
RemoteCallContext anRpcContext;
using (ThreadLock.Lock(myPendingRemoteCalls))
{
myPendingRemoteCalls.TryGetValue(aMessage.Id, out anRpcContext);
}
if (anRpcContext != null)
{
if (string.IsNullOrEmpty(aMessage.ErrorType))
{
anRpcContext.SerializedReturnValue = aMessage.SerializedReturn;
}
else
{
RpcException anException = new RpcException(aMessage.ErrorMessage, aMessage.ErrorType, aMessage.ErrorDetails);
anRpcContext.Error = anException;
}
// Release the pending request.
anRpcContext.RpcCompleted.Set();
}
}
else if (aMessage.Request == ERpcRequest.RaiseEvent)
{
EneterTrace.Debug("EVENT FROM SERVICE RECEIVED");
if (aMessage.SerializedParams != null && aMessage.SerializedParams.Length > 0)
{
// Try to raise an event.
// The event is raised in its own thread so that the receiving thread is not blocked.
// Note: raising an event cannot block handling of response messages because it can block
// processing of an RPC response for which the RPC caller thread is waiting.
// And if this waiting caller thread is a thread where events are routed and if the routing
// of these events is 'blocking' then a deadlock can occur.
// Therefore ThreadPool is used.
EneterThreadPool.QueueUserWorkItem(() => myThreadDispatcher.Invoke(() => RaiseEvent(aMessage.OperationName, aMessage.SerializedParams[0])));
}
else
{
// Note: this happens if the event is of type EventErgs.
// The event is raised in its own thread so that the receiving thread is not blocked.
EneterThreadPool.QueueUserWorkItem(() => myThreadDispatcher.Invoke(() => RaiseEvent(aMessage.OperationName, null)));
}
}
else
{
EneterTrace.Warning(TracedObject + "detected a message with unknown flag number.");
}
}
}
private void SendMessageReceiveResponse(string channelId, object message, object responseMessage,
int numberOfClients, int numberOfMessages,
int openConnectionTimeout,
int allMessagesReceivedTimeout)
{
ThreadPool.SetMinThreads(100, 2);
ClientMockFarm aClientFarm = new ClientMockFarm(MessagingSystemFactory, channelId, numberOfClients);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, channelId);
aService.DoOnMessageReceived_SendResponse(responseMessage);
try
{
//EneterTrace.StartProfiler();
aService.InputChannel.StartListening();
aClientFarm.OpenConnectionsAsync();
aClientFarm.WaitUntilAllConnectionsAreOpen(openConnectionTimeout);
aService.WaitUntilResponseReceiversConnectNotified(numberOfClients, openConnectionTimeout);
Assert.AreEqual(aClientFarm.Clients.Count(), aService.ConnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
foreach (ClientMock aClient in aClientFarm.Clients)
{
Assert.IsTrue(aService.ConnectedResponseReceivers.Any(x => x.ResponseReceiverId == aClient.OutputChannel.ResponseReceiverId));
}
}
PerformanceTimer aStopWatch = new PerformanceTimer();
aStopWatch.Start();
aClientFarm.SendMessageAsync(message, numberOfMessages);
aClientFarm.WaitUntilAllResponsesAreReceived(numberOfMessages, allMessagesReceivedTimeout);
aStopWatch.Stop();
// Wait little bit more for case there is an error that more messages are sent.
Thread.Sleep(500);
Assert.AreEqual(numberOfMessages * numberOfClients, aService.ReceivedMessages.Count());
Assert.AreEqual(numberOfMessages * numberOfClients, aClientFarm.ReceivedResponses.Count());
foreach (DuplexChannelMessageEventArgs aMessage in aService.ReceivedMessages)
{
Assert.AreEqual(message, aMessage.Message);
}
foreach (DuplexChannelMessageEventArgs aResponseMessage in aClientFarm.ReceivedResponses)
{
Assert.AreEqual(responseMessage, aResponseMessage.Message);
}
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClientFarm.CloseAllConnections();
aService.InputChannel.StopListening();
//EneterTrace.StopProfiler();
Thread.Sleep(200);
}
}
public void CalculatePi()
{
//EneterTrace.DetailLevel = EneterTrace.EDetailLevel.Debug;
//EneterTrace.TraceLog = new StreamWriter("d:/tracefile.txt");
IMessagingSystemFactory aThreadMessaging = new ThreadMessagingSystemFactory();
List <CalculatorService> aServices = new List <CalculatorService>();
ILoadBalancer aDistributor = null;
IDuplexTypedMessageSender <double, Interval> aSender = null;
// Create 50 calculating services.
try
{
for (int i = 0; i < 50; ++i)
{
aServices.Add(new CalculatorService("a" + i.ToString(), aThreadMessaging));
}
// Create Distributor
ILoadBalancerFactory aDistributorFactory = new RoundRobinBalancerFactory(aThreadMessaging);
aDistributor = aDistributorFactory.CreateLoadBalancer();
// Attach available services to the distributor.
for (int i = 0; i < aServices.Count; ++i)
{
aDistributor.AddDuplexOutputChannel("a" + i.ToString());
}
// Attach input channel to the distributor.
IDuplexInputChannel anInputChannel = aThreadMessaging.CreateDuplexInputChannel("DistributorAddress");
aDistributor.AttachDuplexInputChannel(anInputChannel);
// Create client that needs to calculate PI.
IDuplexTypedMessagesFactory aTypedMessagesFactory = new DuplexTypedMessagesFactory();
aSender = aTypedMessagesFactory.CreateDuplexTypedMessageSender <double, Interval>();
AutoResetEvent aCalculationCompletedEvent = new AutoResetEvent(false);
int aCount = 0;
double aPi = 0.0;
aSender.ResponseReceived += (x, y) =>
{
++aCount;
EneterTrace.Debug("Completed interval: " + aCount.ToString());
aPi += y.ResponseMessage;
if (aCount == 400)
{
aCalculationCompletedEvent.Set();
}
};
IDuplexOutputChannel anOutputChannel = aThreadMessaging.CreateDuplexOutputChannel("DistributorAddress");
aSender.AttachDuplexOutputChannel(anOutputChannel);
// Sender sends several parallel requests to calculate specified intervals.
// 2 / 0.005 = 400 intervals.
for (double i = -1.0; i <= 1.0; i += 0.005)
{
Interval anInterval = new Interval(i, i + 0.005);
aSender.SendRequestMessage(anInterval);
}
// Wait until all requests are calculated.
EneterTrace.Debug("Test waits until completion.");
aCalculationCompletedEvent.WaitOne();
EneterTrace.Info("Calculated PI = " + aPi.ToString());
}
catch (Exception err)
{
EneterTrace.Error("Test failed", err);
throw;
}
finally
{
aSender.DetachDuplexOutputChannel();
aDistributor.DetachDuplexInputChannel();
aServices.ForEach(x => x.Dispose());
}
}
private void OnMessageReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
// If the connection has already been authenticated then this is a regular request message that will be notified.
bool anIsAuthenticated;
using (ThreadLock.Lock(myAuthenticatedConnections))
{
anIsAuthenticated = myAuthenticatedConnections.Contains(e.ResponseReceiverId);
}
if (anIsAuthenticated)
{
Notify <DuplexChannelMessageEventArgs>(MessageReceived, e, true);
return;
}
bool aDisconnectFlag = true;
bool aNewResponseReceiverAuthenticated = false;
TNotYetAuthenticatedConnection aConnection;
using (ThreadLock.Lock(myNotYetAuthenticatedConnections))
{
myNotYetAuthenticatedConnections.TryGetValue(e.ResponseReceiverId, out aConnection);
if (aConnection == null)
{
aConnection = new TNotYetAuthenticatedConnection();
myNotYetAuthenticatedConnections[e.ResponseReceiverId] = aConnection;
}
}
if (aConnection.HandshakeMessage == null)
{
EneterTrace.Debug("LOGIN RECEIVED");
// If the connection is in the state that it is not logged in then this must be the login message.
// The handshake message will be sent.
try
{
aConnection.LoginMessage = e.Message;
aConnection.HandshakeMessage = myGetHandshakeMessageCallback(e.ChannelId, e.ResponseReceiverId, e.Message);
// If the login was accepted.
if (aConnection.HandshakeMessage != null)
{
try
{
// Send the handshake message to the client.
myUnderlayingInputChannel.SendResponseMessage(e.ResponseReceiverId, aConnection.HandshakeMessage);
aDisconnectFlag = false;
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to send the handshake message. The client will be disconnected.";
EneterTrace.Error(anErrorMessage, err);
}
}
else
{
// the client will be disconnected.
}
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to get the handshake message. The client will be disconnected.";
EneterTrace.Error(anErrorMessage, err);
}
}
// If the connection is in the state that the handshake message was sent then this is the handshake response message.
// The response for the handshake will be verified.
else
{
EneterTrace.Debug("HANDSHAKE RESPONSE RECEIVED");
try
{
if (myAuthenticateCallback(e.ChannelId, e.ResponseReceiverId, aConnection.LoginMessage, aConnection.HandshakeMessage, e.Message))
{
// Send acknowledge message that the connection is authenticated.
try
{
myUnderlayingInputChannel.SendResponseMessage(e.ResponseReceiverId, "OK");
aDisconnectFlag = false;
aNewResponseReceiverAuthenticated = true;
// Move the connection from not-yet-authenticated to authenticated connections.
using (ThreadLock.Lock(myAuthenticatedConnections))
{
myAuthenticatedConnections.Add(e.ResponseReceiverId);
}
using (ThreadLock.Lock(myNotYetAuthenticatedConnections))
{
myNotYetAuthenticatedConnections.Remove(e.ResponseReceiverId);
}
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to send the acknowledge message that the connection was authenticated. The client will be disconnected.";
EneterTrace.Error(anErrorMessage, err);
}
}
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to verify the response for the handshake message. The client will be disconnected.";
EneterTrace.Error(anErrorMessage, err);
}
}
// If the connection with the client shall be closed.
if (aDisconnectFlag)
{
using (ThreadLock.Lock(myNotYetAuthenticatedConnections))
{
myNotYetAuthenticatedConnections.Remove(e.ResponseReceiverId);
}
try
{
myUnderlayingInputChannel.DisconnectResponseReceiver(e.ResponseReceiverId);
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to disconnect response receiver.";
EneterTrace.Warning(anErrorMessage, err);
}
}
// Notify ResponseReceiverConnected if a new connection is authenticated.
// Note: the notification runs outside the lock in order to reduce blocking.
if (aNewResponseReceiverAuthenticated)
{
ResponseReceiverEventArgs anEventArgs = new ResponseReceiverEventArgs(e.ResponseReceiverId, e.SenderAddress);
Notify <ResponseReceiverEventArgs>(ResponseReceiverConnected, anEventArgs, false);
}
}
}
public virtual void Duplex_06_OpenCloseOpenSend()
{
ClientMock aClient = new ClientMock(MessagingSystemFactory, ChannelId);
ServiceMock aService = new ServiceMock(MessagingSystemFactory, ChannelId);
aService.DoOnMessageReceived_SendResponse(myResponseMessage);
try
{
aService.InputChannel.StartListening();
// Client opens the connection.
aClient.OutputChannel.OpenConnection();
Assert.IsTrue(aClient.OutputChannel.IsConnected);
aClient.WaitUntilConnectionOpenIsNotified(1000);
Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedOpenConnection.ChannelId);
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedOpenConnection.ResponseReceiverId);
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
Assert.AreEqual(1, aService.ConnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.ConnectedResponseReceivers[0].ResponseReceiverId);
}
// Client closes the connection.
aClient.OutputChannel.CloseConnection();
Assert.IsFalse(aClient.OutputChannel.IsConnected);
//aClient.WaitUntilConnectionClosedIsNotified(1000);
//Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedCloseConnection.ChannelId);
//Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedCloseConnection.ResponseReceiverId);
aService.WaitUntilAllResponseReceiversDisconnectNotified(3000);
Assert.AreEqual(1, aService.DisconnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.DisconnectedResponseReceivers[0].ResponseReceiverId);
}
aClient.ClearTestResults();
aService.ClearTestResults();
// Client opens the connection 2nd time.
aClient.OutputChannel.OpenConnection();
Assert.IsTrue(aClient.OutputChannel.IsConnected);
aClient.WaitUntilConnectionOpenIsNotified(1000);
Assert.AreEqual(aClient.OutputChannel.ChannelId, aClient.NotifiedOpenConnection.ChannelId);
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aClient.NotifiedOpenConnection.ResponseReceiverId);
aService.WaitUntilResponseReceiversConnectNotified(1, 1000);
Assert.AreEqual(1, aService.ConnectedResponseReceivers.Count());
if (CompareResponseReceiverId)
{
Assert.AreEqual(aClient.OutputChannel.ResponseReceiverId, aService.ConnectedResponseReceivers[0].ResponseReceiverId);
}
// Client sends the message.
aClient.OutputChannel.SendMessage(myRequestMessage);
aClient.WaitUntilResponseMessagesAreReceived(1, 1000);
Assert.AreEqual(myRequestMessage, aService.ReceivedMessages.First().Message);
Assert.AreEqual(myResponseMessage, aClient.ReceivedMessages.First().Message);
}
finally
{
EneterTrace.Debug("CLEANING AFTER TEST");
aClient.OutputChannel.CloseConnection();
aService.InputChannel.StopListening();
// Wait for traces.
Thread.Sleep(100);
}
}
public void DoRequestListening()
{
using (EneterTrace.Entering())
{
myIsListeningToResponses = true;
ushort aCloseCode = 0;
try
{
DynamicStream aContinuousMessageStream = null;
while (!myStopReceivingRequestedFlag)
{
// Decode the incoming message.
WebSocketFrame aFrame = WebSocketFormatter.DecodeFrame(myClientStream);
if (!myStopReceivingRequestedFlag && aFrame != null)
{
// Frames from server must be unmasked.
// According the protocol, If the frame was NOT masked, the server must close connection with the client.
if (aFrame.MaskFlag == false)
{
throw new InvalidOperationException(TracedObject + "received unmasked frame from the client. Frames from client shall be masked.");
}
// Process the frame.
if (aFrame.FrameType == EFrameType.Ping)
{
// Response 'pong'. The response responses same data as received in the 'ping'.
SendFrame(maskingKey => WebSocketFormatter.EncodePongFrame(maskingKey, aFrame.Message));
}
else if (aFrame.FrameType == EFrameType.Close)
{
EneterTrace.Debug(TracedObject + "received the close frame.");
break;
}
else if (aFrame.FrameType == EFrameType.Pong)
{
Notify(PongReceived);
}
// If a new message starts.
else if (aFrame.FrameType == EFrameType.Binary || aFrame.FrameType == EFrameType.Text)
{
// If a previous message is not finished then the new message is not expected -> protocol error.
if (aContinuousMessageStream != null)
{
EneterTrace.Warning(TracedObject + "detected unexpected new message. (previous message was not finished)");
// Protocol error close code.
aCloseCode = 1002;
break;
}
WebSocketMessage aReceivedMessage = null;
// If the message does not come in multiple frames then optimize the performance
// and use MemoryStream instead of DynamicStream.
if (aFrame.IsFinal)
{
MemoryStream aMessageStream = new MemoryStream(aFrame.Message);
aReceivedMessage = new WebSocketMessage(aFrame.FrameType == EFrameType.Text, aMessageStream);
}
else
// if the message is split to several frames then use DynamicStream so that writing of incoming
// frames and reading of already received data can run in parallel.
{
// Create stream where the message data will be writen.
aContinuousMessageStream = new DynamicStream();
aContinuousMessageStream.WriteWithoutCopying(aFrame.Message, 0, aFrame.Message.Length);
aReceivedMessage = new WebSocketMessage(aFrame.FrameType == EFrameType.Text, aContinuousMessageStream);
}
// Put received message to the queue.
myReceivedMessages.EnqueueMessage(aReceivedMessage);
}
// If a message continues. (I.e. message is split into more fragments.)
else if (aFrame.FrameType == EFrameType.Continuation)
{
// If the message does not exist then continuing frame does not have any sense -> protocol error.
if (aContinuousMessageStream == null)
{
EneterTrace.Warning(TracedObject + "detected unexpected continuing of a message. (none message was started before)");
// Protocol error close code.
aCloseCode = 1002;
break;
}
aContinuousMessageStream.WriteWithoutCopying(aFrame.Message, 0, aFrame.Message.Length);
// If this is the final frame.
if (aFrame.IsFinal)
{
aContinuousMessageStream.IsBlockingMode = false;
aContinuousMessageStream = null;
}
}
}
// If disconnected
if (aFrame == null)// || !myTcpClient.Client.Poll(0, SelectMode.SelectWrite))
{
//EneterTrace.Warning(TracedObject + "detected the TCP connection is not available. The connection will be closed.");
break;
}
}
}
catch (IOException)
{
// Ignore this exception. It is often thrown when the connection was closed.
// Do not thrace this because the tracing degradates the performance in this case.
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + ErrorHandler.FailedInListeningLoop, err);
}
// If the connection is being closed due to a protocol error.
if (aCloseCode > 1000)
{
// Try to send the close message.
try
{
byte[] aCloseMessage = WebSocketFormatter.EncodeCloseFrame(null, aCloseCode);
myClientStream.Write(aCloseMessage, 0, aCloseMessage.Length);
}
catch
{
}
}
myIsListeningToResponses = false;
myReceivedMessages.UnblockProcessingThreads();
// Notify the listening to messages stoped.
Notify(ConnectionClosed);
}
}
public void ProcessRemoteRequest(DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
ISerializer aSerializer = mySerializer.ForResponseReceiver(e.ResponseReceiverId);
// Deserialize the incoming message.
RpcMessage aRequestMessage = null;
try
{
aRequestMessage = aSerializer.Deserialize <RpcMessage>(e.Message);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "failed to deserialize incoming request message.", err);
return;
}
RpcMessage aResponseMessage = new RpcMessage()
{
Id = aRequestMessage.Id,
Request = ERpcRequest.Response
};
// If it is a remote call of a method/function.
if (aRequestMessage.Request == ERpcRequest.InvokeMethod)
{
EneterTrace.Debug("RPC RECEIVED");
// Get the method from the service that shall be invoked.
ServiceMethod aServiceMethod;
myServiceMethods.TryGetValue(aRequestMessage.OperationName, out aServiceMethod);
if (aServiceMethod != null)
{
if (aRequestMessage.SerializedParams != null && aRequestMessage.SerializedParams.Length == aServiceMethod.InputParameterTypes.Length)
{
// Deserialize input parameters.
object[] aDeserializedInputParameters = new object[aServiceMethod.InputParameterTypes.Length];
try
{
for (int i = 0; i < aServiceMethod.InputParameterTypes.Length; ++i)
{
aDeserializedInputParameters[i] = aSerializer.Deserialize(aServiceMethod.InputParameterTypes[i], aRequestMessage.SerializedParams[i]);
}
}
catch (Exception err)
{
string anErrorMessage = "failed to deserialize input parameters for '" + aRequestMessage.OperationName + "'.";
EneterTrace.Error(anErrorMessage, err);
aResponseMessage.ErrorType = err.GetType().Name;
aResponseMessage.ErrorMessage = anErrorMessage;
aResponseMessage.ErrorDetails = err.ToString();
}
if (string.IsNullOrEmpty(aResponseMessage.ErrorType))
{
object aResult = null;
try
{
// Invoke the service method.
aResult = aServiceMethod.Method.Invoke(myService, aDeserializedInputParameters);
}
catch (Exception err)
{
// Note: Use InnerException to skip the wrapping ReflexionException.
Exception ex = (err.InnerException != null) ? err.InnerException : err;
EneterTrace.Error(TracedObject + ErrorHandler.DetectedException, ex);
// The exception will be responded to the client.
aResponseMessage.ErrorType = ex.GetType().Name;
aResponseMessage.ErrorMessage = ex.Message;
aResponseMessage.ErrorDetails = ex.ToString();
}
if (string.IsNullOrEmpty(aResponseMessage.ErrorType))
{
try
{
// Serialize the result.
if (aServiceMethod.Method.ReturnType != typeof(void))
{
aResponseMessage.SerializedReturn = aSerializer.Serialize(aServiceMethod.Method.ReturnType, aResult);
}
else
{
aResponseMessage.SerializedReturn = null;
}
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to serialize the result.";
EneterTrace.Error(anErrorMessage, err);
aResponseMessage.ErrorType = err.GetType().Name;
aResponseMessage.ErrorMessage = anErrorMessage;
aResponseMessage.ErrorDetails = err.ToString();
}
}
}
}
else
{
aResponseMessage.ErrorType = typeof(InvalidOperationException).Name;
aResponseMessage.ErrorMessage = TracedObject + "failed to process '" + aRequestMessage.OperationName + "' because it has incorrect number of input parameters.";
EneterTrace.Error(aResponseMessage.ErrorMessage);
}
}
else
{
aResponseMessage.ErrorType = typeof(InvalidOperationException).Name;
aResponseMessage.ErrorMessage = "Method '" + aRequestMessage.OperationName + "' does not exist in the service.";
EneterTrace.Error(aResponseMessage.ErrorMessage);
}
}
// If it is a request to subscribe/unsubcribe an event.
else if (aRequestMessage.Request == ERpcRequest.SubscribeEvent || aRequestMessage.Request == ERpcRequest.UnsubscribeEvent)
{
EventContext anEventContext = null;
using (ThreadLock.Lock(myServiceEvents))
{
anEventContext = myServiceEvents.FirstOrDefault(x => x.EventInfo.Name == aRequestMessage.OperationName);
if (anEventContext != null)
{
if (aRequestMessage.Request == ERpcRequest.SubscribeEvent)
{
EneterTrace.Debug("SUBSCRIBE REMOTE EVENT RECEIVED");
// Note: Events are added to the HashSet.
// Therefore it is ensured each client is subscribed only once.
anEventContext.SubscribedClients.Add(e.ResponseReceiverId);
}
else
{
EneterTrace.Debug("UNSUBSCRIBE REMOTE EVENT RECEIVED");
anEventContext.SubscribedClients.Remove(e.ResponseReceiverId);
}
}
}
if (anEventContext == null)
{
aResponseMessage.ErrorType = typeof(InvalidOperationException).Name;
aResponseMessage.ErrorMessage = TracedObject + "Event '" + aRequestMessage.OperationName + "' does not exist in the service.";
EneterTrace.Error(aResponseMessage.ErrorMessage);
}
}
else
{
aResponseMessage.ErrorType = typeof(InvalidOperationException).Name;
aResponseMessage.ErrorMessage = TracedObject + "could not recognize the incoming request. If it is RPC, Subscribing or Unsubscribfing.";
EneterTrace.Error(aResponseMessage.ErrorMessage);
}
try
{
// Serialize the response message.
object aSerializedResponse = aSerializer.Serialize <RpcMessage>(aResponseMessage);
myInputChannel.SendResponseMessage(e.ResponseReceiverId, aSerializedResponse);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + "." + aRequestMessage.OperationName + " " + ErrorHandler.FailedToSendResponseMessage, err);
}
}
}
// Note: This method is called in the thread defined in used ThreadDispatcher.
// So it is the "correct" thread.
private void OnResponseMessageReceived(object sender, DuplexChannelMessageEventArgs e)
{
using (EneterTrace.Entering())
{
if (myIsConnectionAcknowledged)
{
// If the connection is properly established via handshaking.
myThreadDispatcher.Invoke(() => Notify <DuplexChannelMessageEventArgs>(ResponseMessageReceived, e, true));
return;
}
bool aCloseConnectionFlag = false;
// This is the handshake message.
if (!myIsHandshakeResponseSent)
{
EneterTrace.Debug("HANDSHAKE RECEIVED");
// Get the response for the handshake message.
object aHandshakeResponseMessage = null;
try
{
aHandshakeResponseMessage = myGetHandshakeResponseMessageCallback(e.ChannelId, e.ResponseReceiverId, e.Message);
aCloseConnectionFlag = (aHandshakeResponseMessage == null);
}
catch (Exception err)
{
string anErrorMessage = TracedObject + "failed to get the handshake response message. The connection will be closed.";
EneterTrace.Warning(anErrorMessage, err);
aCloseConnectionFlag = true;
}
// Send back the response for the handshake.
if (!aCloseConnectionFlag)
{
try
{
// Note: keep setting this flag before sending. Otherwise synchronous messaging will not work!
myIsHandshakeResponseSent = true;
myUnderlyingOutputChannel.SendMessage(aHandshakeResponseMessage);
}
catch (Exception err)
{
myIsHandshakeResponseSent = false;
string anErrorMessage = TracedObject + "failed to send the handshake response message. The connection will be closed.";
EneterTrace.Error(anErrorMessage, err);
aCloseConnectionFlag = true;
}
}
}
else
{
EneterTrace.Debug("CONNECTION ACKNOWLEDGE RECEIVED");
// If the handshake was sent then this message must be acknowledgement.
string anAcknowledgeMessage = e.Message as string;
// If the acknowledge message is wrong then disconnect.
if (String.IsNullOrEmpty(anAcknowledgeMessage) || anAcknowledgeMessage != "OK")
{
string anErrorMessage = TracedObject + "detected incorrect acknowledge message. The connection will be closed.";
EneterTrace.Error(anErrorMessage);
aCloseConnectionFlag = true;
}
else
{
myIsConnectionAcknowledged = true;
myAuthenticationEnded.Set();
// Notify the connection is open.
DuplexChannelEventArgs anEventArgs = new DuplexChannelEventArgs(ChannelId, ResponseReceiverId, e.SenderAddress);
myThreadDispatcher.Invoke(() => Notify <DuplexChannelEventArgs>(ConnectionOpened, anEventArgs, false));
}
}
if (aCloseConnectionFlag)
{
myUnderlyingOutputChannel.CloseConnection();
// Release the waiting in OpenConnection(..).
myAuthenticationEnded.Set();
}
}
}
