public void Projection_write_speed_without_unit_of_work()
{
var eventsRead = 0;
var projector1 = Projector.Create <IEvent>(e =>
{
using (var db = new ReadModelDbContext())
{
db.Set <ProductInventory>().Add(new ProductInventory
{
ProductName = Guid.NewGuid().ToString(),
QuantityInStock = Any.Int(1, 5),
QuantityReserved = 0
});
db.SaveChanges();
eventsRead++;
}
}).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(projector1)
{
StartAtEventId = startAtEventId
})
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
// TODO: (Write_speed_without_unit_of_work) write test
Assert.Fail("Test not written yet.");
}
public void Projection_write_speed_with_unit_of_work()
{
var eventsRead = 0;
var projector1 = Projector.Create <IEvent>(e =>
{
using (var update = this.Update())
{
var db = update.Resource <ReadModelDbContext>();
db.Set <ProductInventory>().Add(new ProductInventory
{
ProductName = Guid.NewGuid().ToString(),
QuantityInStock = Any.Int(1, 5),
QuantityReserved = 0
});
db.SaveChanges();
eventsRead++;
}
}).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId, projectors: projector1))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_IEvent()
{
var eventsRead = 0;
var projector1 = Projector.Create<IEvent>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(projector1) { StartAtEventId = startAtEventId })
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_two_specific_events()
{
var eventsRead = 0;
var projector1 = Projector.Create<Order.ItemAdded>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
var projector2 = Projector.Create<CustomerAccount.RequestedNoSpam>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector2");
using (var catchup = new ReadModelCatchup(projector1, projector2) { StartAtEventId = startAtEventId })
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_IEvent()
{
var eventsRead = 0;
var projector1 = Projector.Create <IEvent>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId, projectors: projector1))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_IEvent()
{
var eventsRead = 0;
var projector1 = Projector.Create <IEvent>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(projector1)
{
StartAtEventId = startAtEventId
})
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_IEvent()
{
var eventsRead = 0;
var projector1 = Projector.Create<IEvent>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId, projectors: projector1))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_two_specific_events()
{
var eventsRead = 0;
var projector1 = Projector.Create <Order.ItemAdded>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
var projector2 = Projector.Create <CustomerAccount.RequestedNoSpam>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector2");
using (var catchup = new ReadModelCatchup(projector1, projector2)
{
StartAtEventId = startAtEventId
})
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_two_specific_events()
{
var eventsRead = 0;
var projector1 = Projector.Create <Order.ItemAdded>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
var projector2 = Projector.Create <CustomerAccount.RequestedNoSpam>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector2");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId,
projectors: new object[] { projector1, projector2 }))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void ReadModelCatchup_StartAtEventId_can_be_used_to_avoid_requery_of_previous_events()
{
var lastEventId = Events.Write(50, _ => Events.Any());
var eventsProjected = 0;
var projector = Projector.Create <Event>(e => { eventsProjected++; }).Named(MethodBase.GetCurrentMethod().Name);
using (var catchup = new ReadModelCatchup(projector)
{
StartAtEventId = lastEventId - 20
})
{
catchup.Run();
}
eventsProjected.Should().Be(21);
}
public async Task ReadModelCatchup_StartAtEventId_can_be_used_to_avoid_requery_of_previous_events()
{
var lastEventId = Events.Write(50, _ => Events.Any());
var eventsProjected = 0;
var projector = Projector.Create <Event>(e => { eventsProjected++; })
.Named(MethodBase.GetCurrentMethod().Name);
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: lastEventId - 20,
projectors: projector))
{
await catchup.Run();
}
eventsProjected.Should().Be(21);
}
private void RunCatchup()
{
// TODO: (RunCatchup) provide trace output here and throughout
var projectors = handlers.OrEmpty()
.Where(h => h.GetType().IsProjectorType())
.ToArray();
if (!projectors.Any())
{
return;
}
if (configuration.IsUsingSqlEventStore())
{
var catchup = new ReadModelCatchup(projectors)
{
CreateEventStoreDbContext = CreateEventStoreDbContext,
CreateReadModelDbContext = CreateReadModelDbContext,
StartAtEventId = startCatchupAtEventId
};
using (catchup)
using (catchup.EventBus.Errors.Subscribe(scenario.AddEventHandlingError))
using (catchup.Progress.Subscribe(s => Console.WriteLine(s)))
{
catchup.Run();
}
}
else
{
EventBus.PublishAsync(InitialEvents.ToArray()).Wait();
}
if (scenario.EventHandlingErrors.Any())
{
throw new ScenarioSetupException(
"The following event handling errors occurred during projection catchup: " +
string.Join("\n", scenario.EventHandlingErrors.Select(e => e.Exception.ToString())));
}
}
private void RunCatchup()
{
var projectors = handlers.OrEmpty()
.Where(h => h.GetType().IsProjectorType())
.ToArray();
if (!projectors.Any())
{
return;
}
if (configuration.IsUsingSqlEventStore())
{
var catchup = new ReadModelCatchup(
eventStoreDbContext: () => configuration.EventStoreDbContext(),
readModelDbContext: () => configuration.ReadModelDbContext(),
startAtEventId: startCatchupAtEventId,
projectors: projectors);
using (catchup)
using (catchup.EventBus.Errors.Subscribe(scenario.AddEventHandlingError))
using (catchup.Progress.Subscribe(s => Console.WriteLine(s)))
{
catchup.Run().Wait(TimeSpan.FromSeconds(30));
}
}
else
{
EventBus.PublishAsync(InitialEvents.ToArray()).Wait();
}
if (scenario.EventHandlingErrors.Any())
{
throw new ScenarioSetupException(
"The following event handling errors occurred during projection catchup: " +
string.Join("\n", scenario.EventHandlingErrors.Select(e => e.Exception.ToString())));
}
}
public void Projection_write_speed_with_unit_of_work()
{
var eventsRead = 0;
var projector1 = Projector.Create<IEvent>(e =>
{
using (var update = this.Update())
{
var db = update.Resource<ReadModelDbContext>();
db.Set<ProductInventory>().Add(new ProductInventory
{
ProductName = Guid.NewGuid().ToString(),
QuantityInStock = Any.Int(1, 5),
QuantityReserved = 0
});
db.SaveChanges();
eventsRead++;
}
}).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId, projectors: projector1))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Read_speed_for_two_specific_events()
{
var eventsRead = 0;
var projector1 = Projector.Create<Order.ItemAdded>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
var projector2 = Projector.Create<CustomerAccount.RequestedNoSpam>(e => { eventsRead++; }).Named(MethodBase.GetCurrentMethod().Name + ":projector2");
using (var catchup = new ReadModelCatchup(
eventStoreDbContext: () => EventStoreDbContext(),
readModelDbContext: () => ReadModelDbContext(),
startAtEventId: startAtEventId,
projectors: new object[] { projector1, projector2 }))
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
}
public void Projection_write_speed_without_unit_of_work()
{
var eventsRead = 0;
var projector1 = Projector.Create<IEvent>(e =>
{
using (var db = new ReadModelDbContext())
{
db.Set<ProductInventory>().Add(new ProductInventory
{
ProductName = Guid.NewGuid().ToString(),
QuantityInStock = Any.Int(1, 5),
QuantityReserved = 0
});
db.SaveChanges();
eventsRead++;
}
}).Named(MethodBase.GetCurrentMethod().Name + ":projector1");
using (var catchup = new ReadModelCatchup(projector1) { StartAtEventId = startAtEventId })
{
catchup.Run();
}
Console.WriteLine(new { eventsRead });
// TODO: (Write_speed_without_unit_of_work) write test
Assert.Fail("Test not written yet.");
}
