public AssembledComponents AssembleComponents()
{
var documents = CreateNuclear(new DocumentStrategy());
var streamer = Streamer;
var tapes = Tapes;
var streaming = Streaming;
var routerQueue = CreateQueueWriter(Topology.RouterQueue);
var aggregates = new AggregateFactory(tapes, streamer, routerQueue);
var sender = new SimpleMessageSender(streamer, routerQueue);
var flow = new MessageSender(sender);
var builder = new CqrsEngineBuilder(streamer);
var log = tapes.GetOrCreateStream(Topology.DomainLogName);
var dispatcher = new SimpleDispatcher(aggregates, streamer, log);
builder.Handle(CreateInbox(Topology.RouterQueue),
Topology.Route(CreateQueueWriter, streamer, tapes), "router");
builder.Handle(CreateInbox(Topology.EntityQueue), aggregates.Dispatch);
var functions = new RedirectToDynamicEvent();
// documents
//functions.WireToWhen(new RegistrationUniquenessProjection(atomic.Factory.GetEntityWriter<unit, RegistrationUniquenessDocument>()));
// UI projections
var projectionStore = CreateNuclear(new ProjectionStrategy());
foreach (var projection in BootstrapProjections.BuildProjectionsWithWhenConvention(projectionStore.Factory))
{
functions.WireToWhen(projection);
}
// processes
//functions.WireToWhen(new Domain.RecipeProcess(flow));
builder.Handle(CreateInbox(Topology.EventsQueue), aem => CallHandlers(functions, aem));
var timer = new StreamingTimerService(CreateQueueWriter(Topology.RouterQueue),
streaming.GetContainer(Topology.FutureMessagesContainer), streamer);
builder.Handle(CreateInbox(Topology.TimerQueue), timer.PutMessage);
builder.AddProcess(timer);
// GNS: just for this simple sample. In reality one would have some command handlers involved
Bus.SetBus(new SimpleBus(sender, dispatcher));
return new AssembledComponents
{
Builder = builder,
Sender = sender,
Dispatcher = dispatcher,
ProjectionFactory = projectionStore.Factory,
Setup = this
};
}
public void Run_in_test()
{
var streamer = EnvelopeStreamer.CreateDefault(typeof(CreateCustomer), typeof(CustomerCreated));
var builder = new CqrsEngineBuilder(streamer);
var account = new MemoryStorageConfig();
var nuclear = account.CreateNuclear(new TestStrategy());
var inbox = account.CreateInbox("input");
var sender = account.CreateSimpleSender(streamer, "input");
var handler = new RedirectToCommand();
handler.WireToLambda<CreateCustomer>(customer => Consume(customer, nuclear, sender));
handler.WireToLambda<CustomerCreated>(m => Console.WriteLine("Created!"));
builder.Handle(inbox, envelope => handler.InvokeMany(envelope.SelectContents()));
using (var engine = builder.Build())
{
sender.SendOne(new CreateCustomer
{
CustomerId = 1,
CustomerName = "Rinat Abdullin"
});
engine.RunForever();
}
}
public void Dulicate_message_is_detected()
{
var streamer = EnvelopeStreamer.CreateDefault(typeof(Message));
var builder = new CqrsEngineBuilder(streamer);
var cfg = new MemoryStorageConfig();
var sender = cfg.CreateSimpleSender(streamer, "in");
builder.Handle(cfg.CreateInbox("in"), envelope => Console.WriteLine("Got message"));
var env = new EnvelopeBuilder("fixed ID").Build();
using (var token = new CancellationTokenSource())
using (var build = builder.Build())
using (TestObserver.When<EnvelopeDuplicateDiscarded>(discarded => token.Cancel()))
{
sender.SendBatch(new object[]{new Message()}, IdGeneration.HashContent);
sender.SendBatch(new object[] { new Message()}, IdGeneration.HashContent);
build.Start(token.Token);
if (Debugger.IsAttached)
{
token.Token.WaitHandle.WaitOne();
}
else
{
token.Token.WaitHandle.WaitOne(10000);
}
Assert.IsTrue(token.IsCancellationRequested);
}
}
public void Run_in_test()
{
var streamer = EnvelopeStreamer.CreateDefault(typeof(CreateCustomer), typeof(CustomerCreated));
var builder = new CqrsEngineBuilder(streamer);
var account = new MemoryAccount();
var nuclear = account.CreateNuclear();
var inbox = account.CreateInbox("input");
var sender = account.CreateSimpleSender(streamer, "input");
var handler = new MessageHandler();
handler.WireToLambda<CreateCustomer>(customer => Consume(customer, nuclear, sender));
handler.WireToLambda<CustomerCreated>(m => Console.WriteLine("Created!"));
builder.Handle(inbox, handler.HandleEnvelope);
using (var engine = builder.Build())
{
sender.SendOne(new CreateCustomer
{
CustomerId = 1,
CustomerName = "Rinat Abdullin"
});
engine.RunForever();
}
}
public void Test()
{
var types = Assembly.GetExecutingAssembly().GetExportedTypes()
.Where(t => typeof(IPS_SampleMessage).IsAssignableFrom(t));
var streamer = EnvelopeStreamer.CreateDefault(types);
var builder = new CqrsEngineBuilder(streamer);
// only message contracts within this class
// configure in memory:
// -> sub 1
// inbox -> [PubSubRouter] <
// -> sub 2
//
var store = new MemoryAccount();
var nuclear = store.CreateNuclear();
var router = new PubSubRouter(nuclear, store.CreateWriteQueueFactory(), streamer);
router.Init();
builder.Dispatch(store.CreateInbox("sub1"), b => Console.WriteLine("sub1 hit"));
builder.Dispatch(store.CreateInbox("sub2"), b => Console.WriteLine("sub2 hit"));
builder.Handle(store.CreateInbox("inbox"), router.DispatchMessage);
var sender = store.CreateSimpleSender(streamer, "inbox");
using (var engine = builder.Build())
using (var cts = new CancellationTokenSource())
{
var task = engine.Start(cts.Token);
// no handler should get these.
sender.SendOne(new SomethingHappened());
sender.SendOne(new OtherHappened());
// subscribe sub1 to all messages and sub2 to specific message
sender.SendControl(eb =>
{
eb.AddString("router-subscribe:sub1", ".*");
eb.AddString("router-subscribe:sub2", "SomethingHappened");
});
sender.SendOne(new SomethingHappened());
sender.SendOne(new OtherHappened());
// unsubscribe all
sender.SendControl(eb =>
{
eb.AddString("router-unsubscribe:sub1", ".*");
eb.AddString("router-unsubscribe:sub2", "SomethingHappened");
});
sender.SendOne(new SomethingHappened());
sender.SendOne(new OtherHappened());
task.Wait(5000);
}
}
public void Test()
{
// this test will start a simple web server on port 8082 (with a CQRS engine)
// You might need to reserve that port or run test as admin. Check out unit test
// output for the exact command line on port reservation (or MSDN docs)
//
// netsh http add urlacl url=http://+:8082/ user=RINAT-R5\Rinat.Abdullin
// after starting the test, navigate you browser to localhost:8082/index.htm
// and try dragging the image around
// in-memory structure to capture mouse movement
// statistics
var stats = new MouseStats();
// we accept a message just of this type, using a serializer
var messages = new[] { typeof(MouseMoved), typeof(MouseClick) };
var serializer = new MyJsonSerializer(messages);
var streamer = new EnvelopeStreamer(serializer);
var store = new MemoryAccount();
var atomic = store.CreateNuclear().Factory;
// let's configure our custom Http server to
// 1. serve resources
// 2. serve MouseStats View
// 3. accept commands
var environment = new HttpEnvironment { Port = 8082 };
var builder = new CqrsEngineBuilder(streamer);
builder.AddProcess(new Listener(environment,
new EmbeddedResourceHttpRequestHandler(typeof(MouseMoved).Assembly, "Snippets.HttpEndpoint"),
new MouseStatsRequestHandler(stats),
new HeatMapRequestHandler(atomic.GetEntityReader<unit, HeatMapView>()),
new MouseEventsRequestHandler(store.CreateQueueWriter("inbox"), serializer, streamer)));
builder.Handle(store.CreateInbox("inbox"), envelope =>
{
if (envelope.Items.Any(i => i.Content is MouseMoved))
{
MouseStatHandler(envelope, stats);
}
else if (envelope.Items.Any(i => i.Content is MouseClick))
{
MouseClickHandler(envelope, atomic.GetEntityWriter<unit, PointsView>());
}
});
builder.AddProcess(new HeatMapGenerateTask(atomic.GetEntityReader<unit, PointsView>(), atomic.GetEntityWriter<unit, HeatMapView>()));
Process.Start("http://localhost:8082/index.htm");
// this is a test, so let's block everything
builder.Build().RunForever();
}
public void Test()
{
var streamer = EnvelopeStreamer.CreateDefault(typeof(SecondPassed));
var builder = new CqrsEngineBuilder(streamer);
var store = FileStorage.CreateConfig(GetType().Name, reset:true);
builder.Handle(store.CreateInbox("inbox"), BuildRouter(store, streamer));
builder.Handle(store.CreateInbox("process"), ie => Console.WriteLine("Message from past!"));
var inboxWriter = store.CreateQueueWriter("inbox");
var futureContainer = store.CreateStreaming().GetContainer("future");
var timer = new StreamingTimerService(inboxWriter, futureContainer, streamer);
builder.AddProcess(timer);
builder.Handle(store.CreateInbox("timer"), timer.PutMessage);
using (var engine = builder.Build())
{
var bytes = streamer.SaveEnvelopeData(new SecondPassed(), c => c.DelayBy(TimeSpan.FromSeconds(4)));
inboxWriter.PutMessage(bytes);
Console.WriteLine("Sent message to future...");
engine.RunForever();
}
}
public void Then_transactional_support_is_provided()
{
var streamer = EnvelopeStreamer.CreateDefault(typeof(Act));
var builder = new CqrsEngineBuilder(streamer);
var setup = ComposeComponents(streamer);
var handler = new RedirectToCommand();
handler.WireToLambda<Act>(act => Consume(act, setup.Storage));
builder.Handle(setup.Inbox, envelope =>
{
using (var tx = new TransactionScope(TransactionScopeOption.RequiresNew))
{
handler.InvokeMany(envelope.Items.Select(i => i.Content));
tx.Complete();
}
});
using (var source = new CancellationTokenSource())
using (TestObserver.When<EnvelopeDispatched>(e => source.Cancel()))
using (var engine = builder.Build())
{
setup.Sender.SendBatch(new[] { new Act(), new Act(), new Act { Fail = true } });
setup.Sender.SendBatch(new[] { new Act(), new Act(), new Act() });
var task = engine.Start(source.Token);
// Trace.WriteLine("Started");
if (!task.Wait(Debugger.IsAttached ? int.MaxValue : TestSpeed))
{
source.Cancel();
Assert.Fail("System should be stopped by now");
}
var storage = setup.Storage;
var count = storage.GetSingletonOrNew<int>();
Assert.AreEqual(3, count, "Three acts are expected");
}
}
CqrsEngineBuilder BootstrapHandlers(Setup setup)
{
var builder = new CqrsEngineBuilder(_streamer);
var writer = setup.Store.Factory.GetEntityWriter<unit, int>();
var handler = new CommandHandler();
handler.WireToLambda<AtomicMessage>(am => HandleAtomic(am, setup.Sender, writer));
handler.WireToLambda<NuclearMessage>(am => HandleNuclear(am, setup.Sender, setup.Store));
builder.Handle(setup.Inbox, handler.HandleAll);
return builder;
}
CqrsEngineBuilder BootstrapHandlers(Setup setup)
{
var builder = new CqrsEngineBuilder(_streamer);
var handler = new RedirectToCommand();
handler.WireToLambda<FailingMessage>(am => SmartFailing(am, setup.Store));
builder.Handle(setup.Inbox, envelope =>
{
foreach (var message in envelope.Items)
{
handler.Invoke(message.Content);
}
});
return builder;
}
CqrsEngineBuilder BootstrapHandlers(Setup setup)
{
var builder = new CqrsEngineBuilder(_streamer);
var handler = new CommandHandler();
handler.WireToLambda<FailingMessage>(am => SmartFailing(am, setup.Store));
builder.Handle(setup.Inbox, handler.HandleAll);
return builder;
}
CqrsEngineBuilder BootstrapHandlers(Setup setup)
{
var builder = new CqrsEngineBuilder(_streamer);
var writer = setup.Store.Container.GetWriter<unit, int>();
var handler = new RedirectToCommand();
handler.WireToLambda<AtomicMessage>(am => HandleAtomic(am, setup.Sender, writer));
handler.WireToLambda<NuclearMessage>(am => HandleNuclear(am, setup.Sender, setup.Store));
builder.Handle(setup.Inbox, envelope =>
{
foreach (var message in envelope.Items)
{
handler.Invoke(message.Content);
}
});
return builder;
}
