static void Main(string[] args)
{
var verbose = args.Length > 0 && args[0] == "-v";
var cts = new CancellationTokenSource ();
// trapping Ctrl+C as exit signal!
Console.CancelKeyPress += (s, e) =>
{
e.Cancel = true;
cts.Cancel ();
};
Console.WriteLine ("Starting Titanic Broker in {0} - mode.\n\n", verbose ? "verbose" : "silent");
using (var titanic = new TitanicBroker (new TitanicMemoryIO ()))
{
if (verbose)
titanic.LogInfoReady += (s, e) => PrintMessage (e.Info);
try
{
Task.Factory.StartNew (() => titanic.Run (), cts.Token).Wait (cts.Token);
}
catch (AggregateException e)
{
Console.WriteLine (e.Flatten ());
}
finally
{
cts.Dispose ();
}
}
}
public void ctor_WithStandardPath_ShouldCreateRootAndQueue ()
{
using (ITitanicBroker sut = new TitanicBroker ())
{
sut.Should ().NotBeNull ();
var path = Path.Combine (AppDomain.CurrentDomain.BaseDirectory, _titanic_directory);
var queue = Path.Combine (path, _titanic_queue);
File.Exists (queue).Should ().BeTrue (string.Format ("because {0} should NOT have been created!", queue));
// clean up
File.Delete (queue);
Directory.Delete (path);
}
}
public void Run_CheckStandardConfiguration_ShouldHaveCreatedInfrastructure ()
{
using (ITitanicBroker sut = new TitanicBroker ())
using (var cts = new CancellationTokenSource ())
{
var t = Task.Factory.StartNew (() => sut.Run (), cts.Token);
t.Status.Should ().Be (TaskStatus.WaitingToRun, "because it should wait for a request!");
var path = Path.Combine (AppDomain.CurrentDomain.BaseDirectory, _titanic_directory);
var queue = Path.Combine (path, _titanic_queue);
Directory.Exists (path).Should ().BeTrue (string.Format ("because {0} should have been created!", path));
File.Exists (queue).Should ().BeTrue (string.Format ("because {0} should have been created!", queue));
// clean up
cts.Cancel ();
File.Delete (queue);
Directory.Delete (path);
}
}
public void ctor_WithNoneStandardPath_ShouldCreateRootAndQueueInIndicatedPath ()
{
var path = Path.Combine (Path.GetTempPath (), _titanic_directory);
// create root for Titanic - it expects the root to exist(!)
Directory.CreateDirectory (path);
var queue = Path.Combine (path, _titanic_queue);
using (ITitanicBroker sut = new TitanicBroker (_titanic_broker_address, path))
{
sut.Should ().NotBeNull ();
try
{
File.Exists (queue).Should ().BeTrue (string.Format ("because {0} should have been created!", queue));
}
finally
{
// clean up
File.Delete (queue);
Directory.Delete (path);
}
}
}
public void Run_CheckNoneStandardConfiguration_ShouldHaveCreatedInfrastructure ()
{
var path = Path.Combine (Path.GetTempPath (), _titanic_directory);
// create root for Titanic - it expects the root to exist(!)
Directory.CreateDirectory (path);
var queue = Path.Combine (path, _titanic_queue);
// create queue for Titanic - it expects the queue to exist(!) at that location
var f = File.Create (queue);
f.Dispose ();
using (ITitanicBroker sut = new TitanicBroker (_titanic_broker_address, path))
using (var cts = new CancellationTokenSource ())
{
var t = Task.Factory.StartNew (() => sut.Run (), cts.Token);
t.Status.Should ().Be (TaskStatus.WaitingToRun, "because it should wait for a request!");
Directory.Exists (path).Should ().BeTrue (string.Format ("because {0} should have been created!", path));
File.Exists (queue).Should ().BeTrue (string.Format ("because {0} should have been created!", queue));
// clean up
cts.Cancel ();
File.Delete (queue);
Directory.Delete (path);
}
}
public void Run_RequestReplyClose_ShouldWriteQueueAndReplyCorrect ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// 1. Request
// 2. Reply -> test
reqWorker.Request = new NetMQMessage ();
reqWorker.Request.Push ("Request Data");
reqWorker.Request.Push ("echo");
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// give system time to act
Thread.Sleep (_sleep_for);
// get reply id for further processing
var s = reqWorker.Reply.Last.ConvertToString ();
Guid id;
Guid.TryParse (s, out id).Should ().BeTrue ();
// inject to repWorker who is waiting to proceed and prepare request
repWorker.Request = new NetMQMessage ();
repWorker.Request.Push (s);
// get RequestEntry from queue and mark as processed
var entry = io.GetRequestEntry (id);
io.SaveProcessedRequestEntry (entry);
// signal to proceed to send prepared request
repWorker.waitHandle.Set ();
// set up the fake client's request
closeWorker.Request = new NetMQMessage ();
closeWorker.Request.Push (id.ToString ());
// signal to proceed to send prepared request
closeWorker.waitHandle.Set ();
// give it time to process
Thread.Sleep (_sleep_for);
// TEST COMMUNICATION
closeWorker.Reply.FrameCount.Should ().Be (1, "because only one frame should have been returned.");
closeWorker.Reply.First.ConvertToString ().Should ().Be ("Ok", "because 'Ok' should have been send.");
// TEST QUEUE
io.NumberOfRequests.Should ().Be (0);
io.ExistsMessage (TitanicOperation.Request, id).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Reply, id).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Close, id).Should ().BeFalse ();
}
}
public void Run_RequestReply_ShouldWriteQueueAndReplyCorrect ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// 1. Request
// 2. Reply -> test
reqWorker.Request = new NetMQMessage ();
reqWorker.Request.Push ("Request Data");
reqWorker.Request.Push ("echo");
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// give system time to act
Thread.Sleep (_sleep_for);
// get reply id for further processing
var s = reqWorker.Reply.Last.ConvertToString ();
Guid id;
Guid.TryParse (s, out id).Should ().BeTrue ();
// inject to repWorker who is waiting to proceed and prepare request
repWorker.Request = new NetMQMessage ();
repWorker.Request.Push (s);
// get RequestEntry from queue and mark as processed
var entry = io.GetRequestEntry (id);
io.SaveProcessedRequestEntry (entry);
// signal to proceed to send prepared request
repWorker.waitHandle.Set ();
Thread.Sleep (_sleep_for);
// TEST COMMUNICATION
repWorker.Reply.FrameCount.Should ().Be (3, "because a 3 frame message is expected. ({0})", repWorker.Reply);
repWorker.Reply.First.ConvertToString ().Should ().Be ("Ok");
// should be identical since it is an "echo" service we are simulating :-)
repWorker.Reply.Should ().Equal (entry.Request);
// TEST QUEUE
io.NumberOfRequests.Should ().Be (1);
io.GetRequestEntries (e => e.RequestId == id).Count ().Should ().Be (1);
var queueEntry = io.GetRequestEntry (id);
queueEntry.State.Should ().Be (RequestEntry.Is_Processed);
io.ExistsMessage (TitanicOperation.Close, id).Should ().BeFalse ();
}
}
public void Run_RequestProcessStandardFlow_ShouldWriteQueueAndReplyCorrect ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// request worker will receive two calls
// a) null -> initial call which is answered with a request [service][data]
// b) reply -> [Ok][Guid]
// and TitanicRequest will also write the TitanicQueue -> add a request
// Run will also write queue with different data
reqWorker.Request = new NetMQMessage ();
reqWorker.Request.Push ("Request Data");
reqWorker.Request.Push ("echo");
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// give system time to act
Thread.Sleep (200);
// TEST COMMUNICATION
reqWorker.Reply.FrameCount.Should ().Be (2, "because it was {0}", reqWorker.Reply.ToString ());
reqWorker.Reply.First.ConvertToString ().Should ().Be ("Ok");
var s = reqWorker.Reply.Last.ConvertToString ();
Guid id;
Guid.TryParse (s, out id).Should ().BeTrue ();
// TEST QUEUE (Run was sent the Guid and it kick started the Dispatch(!)
io.NumberOfRequests.Should ().Be (1, "because only one request was received");
var request = io.GetRequestEntry (id);
request.Should ().NotBe (default (RequestEntry), "because the id for the request should allow the retrieval");
request.RequestId.Should ().Be (id);
request.State.Should ().Be (RequestEntry.Is_Pending, "because it has not yet been processed");
request.Request.Should ().Equal (reqWorker.Request, "because {0} was sent.", reqWorker.Request);
}
}
public void TitanicReply_RequestNonExistingReplyUnknown_ShouldSentCorrectReply ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// setup the queue with a request
var guid = Guid.NewGuid ();
// setup the fake replyWorker's request
repWorker.Request = new NetMQMessage ();
repWorker.Request.Push (guid.ToString ());
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// signal worker to go ahead
repWorker.waitHandle.Set ();
// give everything some time to process
Thread.Sleep (_sleep_for);
// TEST COMMUNICATION
repWorker.Reply.FrameCount.Should ().Be (1, "because a 1 frame message is expected. ({0})", repWorker.Reply);
repWorker.Reply.First.ConvertToString ().Should ().Be ("Unknown");
// TEST QUEUE
io.ExistsMessage (TitanicOperation.Request, guid).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Reply, guid).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Close, guid).Should ().BeFalse ();
}
}
public void TitanicReply_RequestReplyOk_ShouldSentCorrectReply ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// setup the queue with a request
var guid = Guid.NewGuid ();
io.SaveNewRequestEntry (guid, new NetMQMessage ());
var entry = io.GetRequestEntry (guid);
// message content is expected to be [service][reply]
entry.Request.Push ("REPLY DATA");
entry.Request.Push ("echo");
io.SaveProcessedRequestEntry (entry);
// setup the fake replyWorker's request
repWorker.Request = new NetMQMessage ();
repWorker.Request.Push (guid.ToString ());
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// signal worker to go ahead
repWorker.waitHandle.Set ();
// give everything some time to process
Thread.Sleep (_sleep_for);
// TEST COMMUNICATION
repWorker.Reply.FrameCount.Should ().Be (3, "because a 3 frame message is expected. ({0})", repWorker.Reply);
repWorker.Reply.First.ConvertToString ().Should ().Be ("Ok");
repWorker.Reply.Should ().Equal (entry.Request);
// TEST QUEUE
io.GetRequestEntries (e => e.RequestId == guid).Count ().Should ().Be (1);
var queueEntry = io.GetRequestEntry (guid);
queueEntry.State.Should ().Be (RequestEntry.Is_Processed);
io.ExistsMessage (TitanicOperation.Close, guid).Should ().BeFalse ();
}
}
public void TitanicClose_RequestToCloseRequest_ShouldDeleteRequestFromQueue ()
{
var io = new TitanicMemoryIO ();
using (var reqWorker = new FakeRequestMDPWorker ())
using (var repWorker = new FakeReplyMDPWorker ())
using (var closeWorker = new FakeCloseMDPWorker ())
using (var dispatchClient = new FakeDispatchMDPClient ())
using (var sut = new TitanicBroker (io))
{
// setup the queue with a request
var guid = Guid.NewGuid ();
// message content is of no importance here
io.SaveNewRequestEntry (guid, new NetMQMessage ());
var entry = io.GetRequestEntry (guid);
io.SaveProcessedRequestEntry (entry);
// set up the fake client's request
closeWorker.Request = new NetMQMessage ();
closeWorker.Request.Push (guid.ToString ());
// start the TitanicBroker (Close will automatically start and
// wait for a signal to proceed with sending the setup request message
// start the process chain - worker & client should only run until they hit an AutoResetEvent
Task.Factory.StartNew (() => sut.Run (reqWorker, repWorker, closeWorker, dispatchClient));
// signal closeWorker to go ahead
closeWorker.waitHandle.Set ();
// give everything some time to process
Thread.Sleep (_sleep_for);
// TEST COMMUNICATION
closeWorker.Reply.FrameCount.Should ().Be (1, "because only one frame should have been returned.");
closeWorker.Reply.First.ConvertToString ().Should ().Be ("Ok", "because 'Ok' should have been send.");
// TEST QUEUE
io.ExistsMessage (TitanicOperation.Request, guid).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Reply, guid).Should ().BeFalse ();
io.ExistsMessage (TitanicOperation.Close, guid).Should ().BeFalse ();
}
}
public void Run_NoWorkers_ShouldSitAndWaitFor5Seconds ()
{
using (var sut = new TitanicBroker (new TitanicMemoryIO ()))
{
Task.Factory.StartNew (() => sut.Run ());
Thread.Sleep (5000);
}
}