public void AutomaticallyReplaysEventsIfViewIsPurged(int numberOfCommands)
{
var allPotatoesView = new MongoDbViewManager <AllPotatoesView>(_mongoDatabase);
_dispatcher.AddViewManager(allPotatoesView);
Console.WriteLine("Processing {0} commands....", numberOfCommands);
Enumerable.Range(0, numberOfCommands - 1)
.ToList()
.ForEach(i => _commandProcessor.ProcessCommand(new BitePotato("someid1", .01m)));
var lastResult = _commandProcessor.ProcessCommand(new BitePotato("someid2", .01m));
Console.WriteLine("Waiting until {0} has been dispatched to the view...", lastResult.GetNewPosition());
allPotatoesView.WaitUntilProcessed(lastResult, TimeSpan.FromSeconds(2)).Wait();
var viewOnFirstLoad = allPotatoesView.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(viewOnFirstLoad, Is.Not.Null);
Console.WriteLine("Purging the view!");
allPotatoesView.Purge();
Console.WriteLine("Waiting until {0} has been dispatched to the view...", lastResult.GetNewPosition());
allPotatoesView.WaitUntilProcessed(lastResult, TimeSpan.FromSeconds(4)).Wait();
var viewOnNextLoad = allPotatoesView.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(viewOnNextLoad, Is.Not.Null);
Assert.That(viewOnNextLoad.LastGlobalSequenceNumber, Is.EqualTo(viewOnFirstLoad.LastGlobalSequenceNumber));
}
public void CanLoadAggregateRootAsInterfaceWhenItExistsAlready()
{
// first, make sure an aggregate root exists
const string aggregateRootId = "someId";
_commandProcessor.ProcessCommand(new CustomCommand(context =>
{
var instance = context.Create <Root>(aggregateRootId);
instance.DoStuff();
}));
// act
var result = _commandProcessor.ProcessCommand(new CustomCommand(context =>
{
var instance = context.Load <ICanDoStuff>(aggregateRootId);
instance.DoStuff();
}));
_viewManager.WaitUntilProcessed(result, TimeSpan.FromSeconds(5)).Wait();
// assert
var view = _viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(view.EventCounts[aggregateRootId], Is.EqualTo(2));
}
public async Task ItShallNotBeSo()
{
var waitHandle = new ViewManagerWaitHandle();
var viewManager = new InMemoryViewManager <Wview>();
var commandProcessor = CommandProcessor.With()
.EventStore(e => e.UseInMemoryEventStore())
.EventDispatcher(e =>
{
e.UseViewManagerEventDispatcher(viewManager)
.WithWaitHandle(waitHandle);
})
.Options(o => o.SetMaxRetries(0))
.Create();
const string oneWootId = "oneWoot";
const string anotherWootId = "anotherWoot";
using (commandProcessor)
{
commandProcessor.ProcessCommand(new MakeAnotherWootDoItsThing(anotherWootId));
commandProcessor.ProcessCommand(new MakeOneWootReadAnotherWoot(oneWootId, anotherWootId));
commandProcessor.ProcessCommand(new MakeAnotherWootDoItsThing(anotherWootId));
var lastResult = commandProcessor.ProcessCommand(new MakeOneWootReadAnotherWoot(oneWootId, anotherWootId));
await waitHandle.WaitFor <Wview>(lastResult, TimeSpan.FromSeconds(10));
var instance = viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
instance.ToString();
}
}
public void BasicDispatchOfSomeEvents()
{
var allPotatoesView = new MongoDbViewManager <AllPotatoesView>(_mongoDatabase);
var potatoTimeToBeConsumedView = new MongoDbViewManager <PotatoTimeToBeConsumedView>(_mongoDatabase);
_dispatcher.AddViewManager(allPotatoesView);
_dispatcher.AddViewManager(potatoTimeToBeConsumedView);
// act
var firstPointInTime = new DateTime(1979, 3, 1, 12, 0, 0, DateTimeKind.Utc);
TimeMachine.FixCurrentTimeTo(firstPointInTime);
_commandProcessor.ProcessCommand(new BitePotato("potato1", 0.5m));
_commandProcessor.ProcessCommand(new BitePotato("potato2", 0.3m));
_commandProcessor.ProcessCommand(new BitePotato("potato2", 0.3m));
_commandProcessor.ProcessCommand(new BitePotato("potato3", 0.3m));
var nextPointInTime = new DateTime(1981, 6, 9, 12, 0, 0, DateTimeKind.Utc);
TimeMachine.FixCurrentTimeTo(nextPointInTime);
_commandProcessor.ProcessCommand(new BitePotato("potato1", 0.5m));
_commandProcessor.ProcessCommand(new BitePotato("potato2", 0.5m));
var lastPointInTime = new DateTime(1981, 6, 9, 12, 0, 0, DateTimeKind.Utc);
_commandProcessor.ProcessCommand(new BitePotato("potato3", 0.8m));
Thread.Sleep(1000);
// assert
var allPotatoes = allPotatoesView.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(allPotatoes, Is.Not.Null);
var potato1View = potatoTimeToBeConsumedView.Load(InstancePerAggregateRootLocator.GetViewIdFromAggregateRootId("potato1"));
var potato2View = potatoTimeToBeConsumedView.Load(InstancePerAggregateRootLocator.GetViewIdFromAggregateRootId("potato2"));
var potato3View = potatoTimeToBeConsumedView.Load(InstancePerAggregateRootLocator.GetViewIdFromAggregateRootId("potato3"));
Assert.That(potato1View, Is.Not.Null);
Assert.That(potato2View, Is.Not.Null);
Assert.That(potato3View, Is.Not.Null);
Assert.That(allPotatoes.NamesOfPotatoes.Count, Is.EqualTo(3));
Assert.That(allPotatoes.NamesOfPotatoes["potato1"], Is.EqualTo("Jeff"));
Assert.That(allPotatoes.NamesOfPotatoes["potato2"], Is.EqualTo("Bunny"));
Assert.That(allPotatoes.NamesOfPotatoes["potato3"], Is.EqualTo("Walter"));
Assert.That(potato1View.Name, Is.EqualTo("Jeff"));
Assert.That(potato1View.TimeOfCreation.ToUniversalTime(), Is.EqualTo(firstPointInTime));
Assert.That(potato1View.TimeToBeEaten, Is.EqualTo(nextPointInTime - firstPointInTime));
Assert.That(potato2View.Name, Is.EqualTo("Bunny"));
Assert.That(potato2View.TimeOfCreation.ToUniversalTime(), Is.EqualTo(firstPointInTime));
Assert.That(potato2View.TimeToBeEaten, Is.EqualTo(nextPointInTime - firstPointInTime));
Assert.That(potato3View.Name, Is.EqualTo("Walter"));
Assert.That(potato3View.TimeOfCreation.ToUniversalTime(), Is.EqualTo(firstPointInTime));
Assert.That(potato3View.TimeToBeEaten, Is.EqualTo(lastPointInTime - firstPointInTime));
}
public void WorksWithCustomSerializer()
{
_commandProcessor.ProcessCommand(new LeCommand("rootid"));
_commandProcessor.ProcessCommand(new LeCommand("rootid"));
var lastResult = _commandProcessor.ProcessCommand(new LeCommand("rootid"));
_viewManager.WaitUntilProcessed(lastResult, TimeSpan.FromSeconds(10)).Wait();
var view = _viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(view.SecretBizTimes.Length, Is.EqualTo(3));
}
public void CanPurgeTheView()
{
// arrange
PurgeTestView.StaticBadBoy = "first value";
_context.Save("id", new Event());
PurgeTestView.StaticBadBoy = "new value";
// act
_viewManager.Purge();
_context.WaitForViewsToCatchUp();
// assert
var view = _viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(view.CaughtStaticBadBoy, Is.EqualTo("new value"));
}
public void CanUpdateMultipleViewsSynchronously()
{
var a = new InMemoryViewManager <ViewA>();
var b = new InMemoryViewManager <ViewB>();
Configure(x => x.EventDispatcher(d => d
.UseSynchronousViewManangerEventDispatcher(a, b)
.WithViewContext(new Dictionary <string, object>
{
{ "Tag", new Tag() }
})));
Emit(NewId <RootA>(), new EventA1());
b.Load(GlobalInstanceLocator.GetViewInstanceId())
.Tag.ShouldBe("Greetings from ViewA;Greetings from ViewB");
}
public void CanRecoverAfterTransientErrors(int eventCount, double failIntervalSeconds, double failDurationSeconds)
{
// arrange
var eventIds = Enumerable.Range(0, eventCount).ToList();
var failCount = 0;
using (var failTimer = new Timer(TimeSpan.FromSeconds(failIntervalSeconds).TotalMilliseconds))
{
failTimer.Elapsed += delegate
{
View.Fail = true;
failCount++;
ThreadPool.QueueUserWorkItem(_ =>
{
Thread.Sleep(TimeSpan.FromSeconds(failDurationSeconds));
View.Fail = false;
});
};
failTimer.Start();
var events = eventIds
.Select(id => new Event {
EventId = id
})
.ToList();
events.ForEach(e => _context.Save("someid", e));
// act
_context.AddViewManager(_viewManager);
_context.WaitForViewsToCatchUp(300);
}
Console.WriteLine(@"====================================================
Processed {0} events
Failed every {1} seconds (total fail count: {2})
====================================================", eventCount, failIntervalSeconds, failCount);
// assert
var viewInstance = _viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(viewInstance.EventIds, Is.EqualTo(eventIds));
}
public void WorksWithGlobalInstanceView()
{
_context.AddViewManager(_globalInstanceViewManager);
_context.Save("id1", new ThisIsJustAnEvent());
_context.Save("id1", new ThisIsJustAnEvent());
_context.Save("id1", new ThisIsJustAnEvent());
_context.Save("id2", new ThisIsJustAnEvent());
_context.Save("id2", new ThisIsJustAnEvent());
_context.Save("id2", new ThisIsJustAnEvent());
_context.WaitForViewsToCatchUp();
var view = _factory.Load <GlobalInstanceViewInstance>(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(view.EventCounter, Is.EqualTo(6));
}
public void AutomaticallyRegeneratesSchemaIfColumnIsMissing()
{
// arrange
_viewManager = new MsSqlViewManager <SomeView>(_connectionString, "views", automaticallyCreateSchema: true);
// schema is generated now - let's drop a column and re-initialize the view manager
DropColumn("views", "ColumnA");
// act
_viewManager = new MsSqlViewManager <SomeView>(_connectionString, "views", automaticallyCreateSchema: true);
// assert
_viewManager.Dispatch(new ThrowingViewContext(), new[]
{
GetAnEvent(Guid.NewGuid(), 0),
GetAnEvent(Guid.NewGuid(), 1)
});
var view = _viewManager.Load(GlobalInstanceLocator.GetViewInstanceId());
Assert.That(view.Events, Is.EqualTo(2));
}
public void CanTestWithDependentViewManagerEventDispatcher()
{
var a = new InMemoryViewManager <ViewA>();
var b = new InMemoryViewManager <ViewB>();
Configure(x => {
x.EventDispatcher(d => {
var context = new Dictionary <string, object>
{
{ "Tag", new Tag() }
};
d.UseViewManagerEventDispatcher(a).WithViewContext(context);
d.UseDependentViewManagerEventDispatcher(b).DependentOn(a).WithViewContext(context);
});
});
Emit(NewId <RootA>(), new EventA1());
b.Load(GlobalInstanceLocator.GetViewInstanceId())
.Tag.ShouldBe("Greetings from ViewA;Greetings from ViewB");
}
public static TView Load <TView>(this IViewManager <TView> viewInstance) where TView : IViewInstance <GlobalInstanceLocator>
{
return(viewInstance.Load(GlobalInstanceLocator.GetViewInstanceId()));
}
public async Task CanInstallMultipleEventDispatchers()
{
var database = MongoHelper.InitializeTestDatabase();
var waiter = new ViewManagerWaitHandle();
//Brett new
var commandProcessor = base.CreateCommandProcessor(config => config
.EventStore(es => { es.UseMongoDb(database, "Events"); es.EnableCaching(10); })
.EventDispatcher(ed => {
ed.UseViewManagerEventDispatcher(new MongoDbViewManager <ConfigTestView>(database, "view1")).WithWaitHandle(waiter).WithConfiguration(new ViewManagerEventDispatcherConfiguration(200));
ed.UseViewManagerEventDispatcher(new MongoDbViewManager <ConfigTestView>(database, "view2")).WithWaitHandle(waiter);
ed.UseViewManagerEventDispatcher(new MongoDbViewManager <ConfigTestView>(database, "view3")).WithWaitHandle(waiter);
ed.UseViewManagerEventDispatcher(new MongoDbViewManager <ConfigTestView>(database, "view4")).WithWaitHandle(waiter);
}));
//orig
//var commandProcessor = CommandProcessor.With()
// .Logging(l => l.UseConsole(minLevel: Logger.Level.Warn))
// .EventStore(e =>
// {
// e.UseMongoDb(database, "Events");
// e.EnableCaching(10);
// })
// .EventDispatcher(d =>
// {
// d.UseViewManagerEventDispatcher(new MongoDbViewManager<ConfigTestView>(database, "view1"))
// .WithWaitHandle(waiter)
// .WithMaxDomainEventsPerBatch(200);
// d.UseViewManagerEventDispatcher(new MongoDbViewManager<ConfigTestView>(database, "view2"))
// .WithWaitHandle(waiter);
// d.UseViewManagerEventDispatcher(new MongoDbViewManager<ConfigTestView>(database, "view3"))
// .WithWaitHandle(waiter);
// d.UseViewManagerEventDispatcher(new MongoDbViewManager<ConfigTestView>(database, "view4"))
// .WithWaitHandle(waiter);
// })
// .Create();
RegisterForDisposal(commandProcessor);
Console.WriteLine("Processing 100 commands...");
99.Times(() => {
commandProcessor.ProcessCommand(new ConfigTestCommand("id1"));
commandProcessor.ProcessCommand(new ConfigTestCommand("id2"));
});
commandProcessor.ProcessCommand(new ConfigTestCommand("id1"));
var lastResult = commandProcessor.ProcessCommand(new ConfigTestCommand("id2"));
Console.WriteLine("Waiting until views have been updated");
await waiter.WaitForAll(lastResult, TimeSpan.FromSeconds(5));
Console.WriteLine("Done - checking collections");
var expectedViewCollectionNames = new[] { "view1", "view2", "view3", "view4" };
var viewCollectionNames = database.GetCollectionNames()
.OrderBy(n => n)
.Where(c => c.StartsWith("view") && !c.EndsWith("Position"))
.ToArray();
Assert.That(viewCollectionNames, Is.EqualTo(expectedViewCollectionNames));
expectedViewCollectionNames.ToList()
.ForEach(name => {
var doc = database.GetCollection <ConfigTestView>(name)
.FindOne(Query.EQ("_id", GlobalInstanceLocator.GetViewInstanceId()));
Assert.That(doc.ProcessedEventNumbers, Is.EqualTo(Enumerable.Range(0, 200).ToArray()));
Assert.That(doc.CountsByRootId["id1"], Is.EqualTo(100));
Assert.That(doc.CountsByRootId["id2"], Is.EqualTo(100));
});
}
