public void DoNotNotifyPublisher()
{
// Create channels
IMessagingSystemFactory aMessagingSystem = new SynchronousMessagingSystemFactory();
IDuplexInputChannel aBrokerInputChannel = aMessagingSystem.CreateDuplexInputChannel("BrokerChannel");
IDuplexOutputChannel aClient1OutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexOutputChannel aClient2OutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
// Specify in the factory that the publisher shall not be notified from its own published events.
IDuplexBrokerFactory aBrokerFactory = new DuplexBrokerFactory()
{
IsPublisherNotified = false
};
IDuplexBroker aBroker = aBrokerFactory.CreateBroker();
aBroker.AttachDuplexInputChannel(aBrokerInputChannel);
IDuplexBrokerClient aClient1 = aBrokerFactory.CreateBrokerClient();
List <BrokerMessageReceivedEventArgs> aClient1ReceivedMessage = new List <BrokerMessageReceivedEventArgs>();
aClient1.BrokerMessageReceived += (x, y) =>
{
aClient1ReceivedMessage.Add(y);
};
aClient1.AttachDuplexOutputChannel(aClient1OutputChannel);
IDuplexBrokerClient aClient2 = aBrokerFactory.CreateBrokerClient();
List <BrokerMessageReceivedEventArgs> aClient2ReceivedMessage = new List <BrokerMessageReceivedEventArgs>();
aClient2.BrokerMessageReceived += (x, y) =>
{
aClient2ReceivedMessage.Add(y);
};
aClient2.AttachDuplexOutputChannel(aClient2OutputChannel);
aClient1.Subscribe("TypeA");
aClient2.Subscribe("TypeA");
// Notify the message.
aClient2.SendMessage("TypeA", "Message A");
// Client 2 should not get the notification.
Assert.AreEqual(1, aClient1ReceivedMessage.Count);
Assert.AreEqual(0, aClient2ReceivedMessage.Count);
Assert.AreEqual("TypeA", aClient1ReceivedMessage[0].MessageTypeId);
Assert.AreEqual("Message A", (String)aClient1ReceivedMessage[0].Message);
}
public void SubscribeSameMessageTwice()
{
// Create channels
IMessagingSystemFactory aMessagingSystem = new SynchronousMessagingSystemFactory();
IDuplexInputChannel aBrokerInputChannel = aMessagingSystem.CreateDuplexInputChannel("BrokerChannel");
IDuplexOutputChannel aSubscriberClientOutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexOutputChannel aPublisherClientOutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexBrokerFactory aBrokerFactory = new DuplexBrokerFactory();
IDuplexBroker aBroker = aBrokerFactory.CreateBroker();
aBroker.AttachDuplexInputChannel(aBrokerInputChannel);
IDuplexBrokerClient aSubscriber = aBrokerFactory.CreateBrokerClient();
List <BrokerMessageReceivedEventArgs> aClient1ReceivedMessage = new List <BrokerMessageReceivedEventArgs>();
aSubscriber.BrokerMessageReceived += (x, y) =>
{
aClient1ReceivedMessage.Add(y);
};
aSubscriber.AttachDuplexOutputChannel(aSubscriberClientOutputChannel);
IDuplexBrokerClient aPublisher = aBrokerFactory.CreateBrokerClient();
aPublisher.AttachDuplexOutputChannel(aPublisherClientOutputChannel);
// Subscribe the 1st time.
aSubscriber.Subscribe("TypeA");
// Subscribe the 2nd time.
aSubscriber.Subscribe("TypeA");
// Notify the message.
aPublisher.SendMessage("TypeA", "Message A");
// Although the client is subscribed twice, the message shall be notified once.
Assert.AreEqual(1, aClient1ReceivedMessage.Count);
Assert.AreEqual("TypeA", aClient1ReceivedMessage[0].MessageTypeId);
Assert.AreEqual("Message A", (String)aClient1ReceivedMessage[0].Message);
}
public void Setup()
{
//EneterTrace.DetailLevel = EneterTrace.EDetailLevel.Debug;
IMessagingSystemFactory aMessaging = new SynchronousMessagingSystemFactory();
InputChannel = aMessaging.CreateDuplexInputChannel("MyChannelId");
OutputChannel = aMessaging.CreateDuplexOutputChannel("MyChannelId");
MultiTypedMessagesFactory = new MultiTypedMessagesFactory();
}
public void Setup()
{
IMessagingSystemFactory aGlobalChannelFactory = new SynchronousMessagingSystemFactory();
myDuplexGlobalOutputChannel = aGlobalChannelFactory.CreateDuplexOutputChannel("MainChannel");
myDuplexGlobalInputChannel = aGlobalChannelFactory.CreateDuplexInputChannel("MainChannel");
myMessagingForWrapper = new SynchronousMessagingSystemFactory();
myMessagingForUnwrapper = new SynchronousMessagingSystemFactory();
IChannelWrapperFactory aFactory = new ChannelWrapperFactory();
myDuplexChannelWrapper = aFactory.CreateDuplexChannelWrapper();
myDuplexChannelUnwrapper = aFactory.CreateDuplexChannelUnwrapper(myMessagingForUnwrapper);
}
public void NotifySubscribers()
{
//EneterTrace.DetailLevel = EneterTrace.EDetailLevel.Debug;
//EneterTrace.TraceLog = new StreamWriter("d:/tracefile.txt");
// Create channels
IMessagingSystemFactory aMessagingSystem = new SynchronousMessagingSystemFactory();
IDuplexInputChannel aBrokerInputChannel = aMessagingSystem.CreateDuplexInputChannel("BrokerChannel");
IDuplexOutputChannel aSubscriber1ClientOutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexOutputChannel aSubscriber2ClientOutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexOutputChannel aSubscriber3ClientOutputChannel = aMessagingSystem.CreateDuplexOutputChannel("BrokerChannel");
IDuplexBrokerFactory aBrokerFactory = new DuplexBrokerFactory();
IDuplexBroker aBroker = aBrokerFactory.CreateBroker();
BrokerMessageReceivedEventArgs aBrokerReceivedMessage = null;
aBroker.BrokerMessageReceived += (x, y) =>
{
aBrokerReceivedMessage = y;
};
aBroker.AttachDuplexInputChannel(aBrokerInputChannel);
IDuplexBrokerClient aBrokerClient1 = aBrokerFactory.CreateBrokerClient();
BrokerMessageReceivedEventArgs aClient1ReceivedMessage = null;
aBrokerClient1.BrokerMessageReceived += (x, y) =>
{
aClient1ReceivedMessage = y;
};
aBrokerClient1.AttachDuplexOutputChannel(aSubscriber1ClientOutputChannel);
IDuplexBrokerClient aBrokerClient2 = aBrokerFactory.CreateBrokerClient();
BrokerMessageReceivedEventArgs aClient2ReceivedMessage = null;
aBrokerClient2.BrokerMessageReceived += (x, y) =>
{
aClient2ReceivedMessage = y;
};
aBrokerClient2.AttachDuplexOutputChannel(aSubscriber2ClientOutputChannel);
IDuplexBrokerClient aBrokerClient3 = aBrokerFactory.CreateBrokerClient();
BrokerMessageReceivedEventArgs aClient3ReceivedMessage = null;
aBrokerClient3.BrokerMessageReceived += (x, y) =>
{
aClient3ReceivedMessage = y;
};
aBrokerClient3.AttachDuplexOutputChannel(aSubscriber3ClientOutputChannel);
string[] aSubscription1 = { "TypeA", "TypeB" };
aBrokerClient1.Subscribe(aSubscription1);
string[] aSubscription2 = { "TypeA" };
aBrokerClient2.Subscribe(aSubscription2);
string[] aSubscription3 = { "MTypeC" };
aBrokerClient3.Subscribe(aSubscription3);
aBroker.Subscribe("TypeA");
aBrokerClient3.SendMessage("TypeA", "Message A");
Assert.AreEqual("TypeA", aClient1ReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aClient1ReceivedMessage.Message);
Assert.AreEqual(null, aClient1ReceivedMessage.ReceivingError);
Assert.AreEqual("TypeA", aClient2ReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aClient2ReceivedMessage.Message);
Assert.AreEqual(null, aClient2ReceivedMessage.ReceivingError);
Assert.AreEqual(null, aClient3ReceivedMessage);
Assert.AreEqual("TypeA", aBrokerReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aBrokerReceivedMessage.Message);
Assert.AreEqual(null, aBrokerReceivedMessage.ReceivingError);
aClient1ReceivedMessage = null;
aClient2ReceivedMessage = null;
aClient3ReceivedMessage = null;
aBrokerReceivedMessage = null;
aBrokerClient2.Unsubscribe();
aBrokerClient3.SendMessage("MTypeC", "Message MTC");
Assert.AreEqual(null, aClient1ReceivedMessage);
Assert.AreEqual(null, aClient2ReceivedMessage);
Assert.AreEqual("MTypeC", aClient3ReceivedMessage.MessageTypeId);
Assert.AreEqual("Message MTC", (string)aClient3ReceivedMessage.Message);
Assert.AreEqual(null, aClient3ReceivedMessage.ReceivingError);
Assert.AreEqual(null, aBrokerReceivedMessage);
aClient1ReceivedMessage = null;
aClient2ReceivedMessage = null;
aClient3ReceivedMessage = null;
aBrokerReceivedMessage = null;
aBroker.SendMessage("TypeA", "Message A");
Assert.AreEqual("TypeA", aClient1ReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aClient1ReceivedMessage.Message);
Assert.AreEqual(null, aClient1ReceivedMessage.ReceivingError);
Assert.AreEqual(null, aClient2ReceivedMessage);
Assert.AreEqual(null, aClient3ReceivedMessage);
Assert.AreEqual("TypeA", aBrokerReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aBrokerReceivedMessage.Message);
Assert.AreEqual(null, aBrokerReceivedMessage.ReceivingError);
aClient1ReceivedMessage = null;
aClient2ReceivedMessage = null;
aClient3ReceivedMessage = null;
aBrokerReceivedMessage = null;
aBroker.Unsubscribe("TypeA");
string[] aNewMessageType = { "TypeA" };
aBrokerClient3.Subscribe(aNewMessageType);
aBrokerClient1.DetachDuplexOutputChannel();
aBrokerClient3.SendMessage("TypeA", "Message A");
Assert.AreEqual(null, aClient1ReceivedMessage);
Assert.AreEqual(null, aClient2ReceivedMessage);
Assert.AreEqual("TypeA", aClient3ReceivedMessage.MessageTypeId);
Assert.AreEqual("Message A", (string)aClient3ReceivedMessage.Message);
Assert.AreEqual(null, aClient3ReceivedMessage.ReceivingError);
Assert.AreEqual(null, aBrokerReceivedMessage);
}
public void LoadBalancerConnectionLogic()
{
IMessagingSystemFactory aMessaging = new SynchronousMessagingSystemFactory();
string aReceiverChannelId = "";
EventHandler <DuplexChannelMessageEventArgs> aRequestReceived = (x, y) =>
{
// Echo the message.
IDuplexInputChannel anInputChannel = (IDuplexInputChannel)x;
aReceiverChannelId = anInputChannel.ChannelId;
anInputChannel.SendResponseMessage(y.ResponseReceiverId, y.Message);
};
string aResponseReceiverId = "";
ResponseReceiverEventArgs aDisconnectedLoadBalancerConnection = null;
EventHandler <ResponseReceiverEventArgs> aDisconnectedFromReceiver = (x, y) =>
{
aResponseReceiverId = ((IDuplexInputChannel)x).ChannelId;
aDisconnectedLoadBalancerConnection = y;
};
// Receivers.
IDuplexInputChannel[] aReceivers = new IDuplexInputChannel[3];
for (int i = 0; i < aReceivers.Length; ++i)
{
aReceivers[i] = aMessaging.CreateDuplexInputChannel((i + 1).ToString());
aReceivers[i].MessageReceived += aRequestReceived;
aReceivers[i].ResponseReceiverDisconnected += aDisconnectedFromReceiver;
}
// Clients.
IDuplexOutputChannel aClient1 = aMessaging.CreateDuplexOutputChannel("LB");
string aReceivedResponse1 = "";
aClient1.ResponseMessageReceived += (x, y) =>
{
aReceivedResponse1 = (string)y.Message;
};
IDuplexOutputChannel aClient2 = aMessaging.CreateDuplexOutputChannel("LB");
string aReceivedResponse2 = "";
aClient2.ResponseMessageReceived += (x, y) =>
{
aReceivedResponse2 = (string)y.Message;
};
// Load Balancer
ILoadBalancerFactory aLoadBalancerFactory = new RoundRobinBalancerFactory(aMessaging);
ILoadBalancer aLoadBalancer = aLoadBalancerFactory.CreateLoadBalancer();
AutoResetEvent aReceiverRemovedEvent = new AutoResetEvent(false);
string aRemovedReceiverId = "";
aLoadBalancer.RequestReceiverRemoved += (x, y) =>
{
aRemovedReceiverId = y.ChannelId;
aReceiverRemovedEvent.Set();
};
try
{
// Receivers start listening.
foreach (IDuplexInputChannel aReceiver in aReceivers)
{
aReceiver.StartListening();
}
// Load Balancer starts listening.
for (int i = 0; i < aReceivers.Length; ++i)
{
aLoadBalancer.AddDuplexOutputChannel((i + 1).ToString());
}
aLoadBalancer.AttachDuplexInputChannel(aMessaging.CreateDuplexInputChannel("LB"));
// Clients connect the load balancer.
aClient1.OpenConnection();
aClient2.OpenConnection();
// It shall use the next (second) receiver.
aClient1.SendMessage("Hello.");
Assert.AreEqual("Hello.", aReceivedResponse1);
Assert.AreEqual("", aReceivedResponse2);
Assert.AreEqual("2", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
// It shall use the next (third) receiver.
aClient2.SendMessage("Hello.");
Assert.AreEqual("", aReceivedResponse1);
Assert.AreEqual("Hello.", aReceivedResponse2);
Assert.AreEqual("3", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
// It is at the end of the pool so it shall starts from the beginning.
aClient2.SendMessage("Hello.");
Assert.AreEqual("", aReceivedResponse1);
Assert.AreEqual("Hello.", aReceivedResponse2);
Assert.AreEqual("1", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
// Let's remove the second receiver.
aLoadBalancer.RemoveDuplexOutputChannel("2");
Assert.IsNotNull(aDisconnectedLoadBalancerConnection);
Assert.AreEqual("2", aResponseReceiverId);
// The 2nd is removed so it shall use the 3rd one.
aClient2.SendMessage("Hello.");
Assert.AreEqual("", aReceivedResponse1);
Assert.AreEqual("Hello.", aReceivedResponse2);
Assert.AreEqual("3", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
// 1st receiver stops to listen.
aReceivers[0].StopListening();
// It should start from the beginnng but 1st is not listening and 2nd was removed.
// So it shall use the 3rd one.
aClient1.SendMessage("Hello.");
Assert.AreEqual("Hello.", aReceivedResponse1);
Assert.AreEqual("", aReceivedResponse2);
Assert.AreEqual("3", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
aReceiverRemovedEvent.WaitOne();
Assert.AreEqual("1", aRemovedReceiverId);
aReceivers[2].StopListening();
aClient2.SendMessage("Hello.");
Assert.AreEqual("", aReceivedResponse1);
Assert.AreEqual("", aReceivedResponse2);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
aReceiverRemovedEvent.WaitOne();
Assert.AreEqual("3", aRemovedReceiverId);
aReceivers[0].StartListening();
aReceivers[2].StartListening();
for (int i = 0; i < aReceivers.Length; ++i)
{
aLoadBalancer.AddDuplexOutputChannel((i + 1).ToString());
}
aClient2.SendMessage("Hello.");
Assert.AreEqual("", aReceivedResponse1);
Assert.AreEqual("Hello.", aReceivedResponse2);
Assert.AreEqual("2", aReceiverChannelId);
aReceivedResponse1 = "";
aReceivedResponse2 = "";
}
finally
{
aClient1.CloseConnection();
aClient2.CloseConnection();
aLoadBalancer.DetachDuplexInputChannel();
foreach (IDuplexInputChannel aReceiver in aReceivers)
{
aReceiver.StopListening();
}
}
}
