static void Main(string[] args)
{
// This sample show how a developer can use the microsoft queuing managment service (msmq)
// to store messages while offline in order to send them later.
// We simulate being offline by throwing a WebException
// We then send the message to the msmq as a store until we are back online (aka fix the default actor to not throw exceptions)
// Once we are back online we retrieve the items from the durable queue and finish sending them to the default actor.
// Turn msmq on on windows 10
// Open Control Panel.
// Click Programs and then, under Programs and Features, click Turn Windows Features on and off.
// Expand Microsoft Message Queue(MSMQ) Server, expand Microsoft Message Queue(MSMQ) Server Core, and then select the check boxes for the following Message Queuing features to install. ...
// Click OK.
// send queued items to the
string durableQueueName = "DurableQueueName";
Telegraph.Instance.Register(new LocalQueueOperator());
string messageStr = "DurableSenderException.";
DefaultActor da = new DefaultActor();
da.OnMessageHandler = delegate(IActorMessage s) { throw new System.Net.WebException(); };
Telegraph.Instance.Register <Messages.SendMsgToDurableQueue, MsmqDeliveryOperator <string> >(() => new MsmqDeliveryOperator <string>(durableQueueName));
Telegraph.Instance.Register <string, DefaultActor>(() => da);
Telegraph.Instance.Register(typeof(System.Net.WebException), SendMessageToDurableQueueForLaterDelivery);
int i = 0;
for (; i < 10; ++i)
{
string msg = (messageStr + i.ToString());
Telegraph.Instance.Tell(msg.ToActorMessage());
}
Console.WriteLine(string.Format("We sent {0} strings to the default actor", failCount));
while (failCount != i)
{
System.Threading.Thread.Sleep(100);
}
Console.WriteLine(string.Format("{0} strings failed", failCount));
Console.WriteLine(string.Format("We sent {0} strings to the durable queue", failCount));
Task.WaitAll(durableTasksToWaitOn.ToArray());
//Change the default actor to now process string messages
int rerun = 0;
da.OnMessageHandler = delegate(IActorMessage s) { Console.WriteLine((string)s.Message); ++rerun; return(true); };
long receptionOp = Telegraph.Instance.Register(new MsmqReceptionOperator <string>(durableQueueName));
Telegraph.Instance.Register <string, DefaultActor>(receptionOp, () => da);
while (rerun <= i)
{
System.Threading.Thread.Sleep(100);
}
Console.WriteLine(string.Format("After fixing the default actor we sent {0} retrieved strings from the durable queue", failCount));
}
public void Apply([NotNull] IThreatActor actor)
{
_id = actor.Id;
Description = actor.Description;
_actor = actor.ActorType;
actor.CloneProperties(this);
}
public ThreatActor([NotNull] IThreatModel model, DefaultActor actor)
{
_id = Guid.NewGuid();
_model = model;
_modelId = model.Id;
_actor = actor;
Name = actor.GetEnumLabel();
Description = actor.GetEnumDescription();
}
static void RetryMessage()
{
System.Diagnostics.Debug.WriteLine("RetryMessage");
Telegraph.Instance.Register(new LocalQueueOperator()); // performs a reset.
string messageStr = "RetryMessage.";
// this is using the sequential local concurrency type which will create a new Actor for each message.
long count = 0;
DefaultActor da = new DefaultActor();
da.OnMessageHandler = delegate(IActorMessage s)
{
Interlocked.Increment(ref count);
if (count == 1)
{
throw new ArgumentException("Testing here");
}
else
{
Console.WriteLine("Handled " + (string)s.Message);
}
return(true);
};
Telegraph.Instance.Register <string, DefaultActor>(() => da);
Func <Exception, IActor, IActorMessage, IActorInvocation, IActor> errhandler = delegate(Exception ex, IActor actor, IActorMessage msg, IActorInvocation invoker)
{
// send the msg back to the queue
Console.WriteLine("Sending msg back to the queue.");
Telegraph.Instance.Tell(msg);
return(null);
};
// fallback to this exception since we didnt find a null ref exception
Telegraph.Instance.Register(typeof(Exception), errhandler);
for (int i = 0; i < 10; ++i)
{
IActorMessage msg = new SimpleMessage <string>(messageStr + i.ToString());
Telegraph.Instance.Tell(msg);
}
Telegraph.Instance.WaitTillEmpty(new TimeSpan(0, 3, 0));
}
public IThreatActor AddThreatActor(DefaultActor actor)
{
IThreatActor result = null;
if (actor != DefaultActor.Unknown)
{
var threatActor = GetThreatActor(actor);
if (threatActor == null)
{
result = new ThreatActor(this, actor);
Add(result);
RegisterEvents(result);
}
}
return(result);
}
static void RestartActorAndReprocess()
{
System.Diagnostics.Debug.WriteLine("RetryMessage");
Telegraph.Instance.Register(new LocalQueueOperator()); // performs a reset.
string messageStr = "RetryMessage.";
// this is using the sequential local concurrency type which will create a new Actor for each message.
DefaultActor da = new DefaultActor();
da.OnMessageHandler = delegate(IActorMessage s)
{
throw new ArgumentException("Testing here");
};
Telegraph.Instance.Register <string, DefaultActor>(() => da);
Func <Exception, IActor, IActorMessage, IActorInvocation, IActor> errhandler = delegate(Exception ex, IActor actor, IActorMessage msg, IActorInvocation invoker)
{
Console.WriteLine("Creating New Actor");
DefaultActor da2 = new DefaultActor();
da2.OnMessageHandler = delegate(IActorMessage s)
{
Console.WriteLine("New Actor:" + (string)s.Message);
return(true);
};
// send the msg back to the queue
Console.WriteLine("Sending msg back to the queue.");
Telegraph.Instance.Tell(msg);
return(da2);
};
// fallback to this exception since we didnt find a null ref exception
Telegraph.Instance.Register(typeof(Exception), errhandler);
IActorMessage origMessage = new SimpleMessage <string>(messageStr);
Telegraph.Instance.Tell(origMessage);
System.Threading.Thread.Sleep(1000);
Telegraph.Instance.WaitTillEmpty(new TimeSpan(0, 3, 0));
}
public void RegisterMessageToActorByOp()
{
Telegraph.Instance.UnRegisterAll();
string message = "RegisterMessageToActorByOp";
bool called = false;
LocalQueueOperator op = new LocalQueueOperator();
DefaultActor da = new DefaultActor();
Telegraph.Instance.Register <string, DefaultActor>(op, () => da);
da.OnMessageHandler = (msg) =>
{
called = true;
Assert.IsTrue(msg.Message.Equals(message));
return(true);
};
Telegraph.Instance.Ask(message.ToActorMessage()).Wait();
Assert.IsTrue(called);
}
public void RegisterValueTypeToActorForOneThreadPerActorTypeSwitchboard()
{
Telegraph.Instance.UnRegisterAll();
long computeOpID = Telegraph.Instance.Register(new LocalQueueOperator(new OneThreadPerActorTypeSwitchboard()));
int message = 1;
bool called = false;
DefaultActor da = new DefaultActor();
Telegraph.Instance.Register <ValueTypeMessage <int>, DefaultActor>(computeOpID, () => da);
da.OnMessageHandler = (msg) =>
{
called = true;
Assert.IsFalse(!msg.Message.Equals(message));
return(true);
};
Telegraph.Instance.Ask(message.ToActorMessage()).Wait();
Assert.IsTrue(called);
}
static void LogExceptions()
{
System.Diagnostics.Debug.WriteLine("LogExceptions");
Telegraph.Instance.Register(new LocalQueueOperator()); // performs a reset.
string messageStr = "LogExceptions.";
// this is using the sequential local concurrency type which will create a new Actor for each message.
DefaultActor da = new DefaultActor();
da.OnMessageHandler = delegate(IActorMessage s) { throw new NullReferenceException(); };
Telegraph.Instance.Register <byte[], DefaultActor>(() => da);
Telegraph.Instance.Register(typeof(NullReferenceException), HandleExceptionWithPrintingIt);
for (int i = 0; i < 10; ++i)
{
IActorMessage msg = new ValueTypeMessage <byte>(Encoding.ASCII.GetBytes(messageStr + i.ToString()));
Telegraph.Instance.Tell(msg);
}
Telegraph.Instance.Ask(new ControlMessages.HangUp()).Wait();
}
public IThreatActor GetThreatActor(DefaultActor actor)
{
return(actor != DefaultActor.Unknown ? _actors?.FirstOrDefault(x => x.ActorType == actor) : null);
}