protected override void OnEventApplied(SourcedEvent appliedEvent)
{
if (UnitOfWork.Current == null)
throw new NoUnitOfWorkAvailableInThisContextException();
UnitOfWork.Current.RegisterDirtyInstance(this);
}
protected override void OnEventApplied(SourcedEvent appliedEvent)
{
if(EventApplied != null)
{
EventApplied(this, new EventAppliedArgs(appliedEvent));
}
}
public void Retrieving_all_events_should_return_the_same_as_added()
{
var targetStore = new RavenDBEventStore(_documentStore);
var id = Guid.NewGuid();
int sequenceCounter = 0;
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Foo",
35),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(id);
eventSource.Stub(e => e.InitialVersion).Return(0);
eventSource.Stub(e => e.Version).Return(events.Length);
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events);
targetStore.Save(eventSource);
var result = targetStore.GetAllEvents(id);
result.Count().Should().Be(events.Length);
result.First().EventIdentifier.Should().Be(events.First().EventIdentifier);
Assert.IsTrue(result.SequenceEqual(events));
}
public void Saving_event_source_should_succeed()
{
var targetStore = new RavenDBEventStore(_documentStore);
var id = Guid.NewGuid();
int sequenceCounter = 0;
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Foo",
35),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(id);
eventSource.Stub(e => e.InitialVersion).Return(0);
eventSource.Stub(e => e.Version).Return(events.Length);
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events);
targetStore.Save(eventSource);
}
public void Rolling_back_transaction_should_remove_inserted_rows()
{
var id = Guid.NewGuid();
var utcNow = DateTime.UtcNow.Date.AddHours(9).AddTicks(-1);
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), id, 0, utcNow, "Foo", 35)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(id);
eventSource.Stub(e => e.InitialVersion).Return(0);
eventSource.Stub(e => e.Version).Return(events.Length);
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events);
_store.Save(eventSource);
_transaction.Rollback();
using (var conn = new SQLiteConnection(_connString))
{
conn.Open();
using (var cmd = new SQLiteCommand("SELECT [TimeStamp] FROM [Events]", conn))
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
Assert.Fail("No rows should exist");
}
}
}
}
public void Retrieved_event_should_having_identical_timestamp_as_persisted()
{
var id = Guid.NewGuid();
var utcNow = DateTime.UtcNow.Date.AddHours(9).AddTicks(-1);
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), id, 0, utcNow, "Foo", 35)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(id);
eventSource.Stub(e => e.InitialVersion).Return(0);
eventSource.Stub(e => e.Version).Return(events.Length);
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events);
_store.Save(eventSource);
using (var conn = new SQLiteConnection(_connString))
{
conn.Open();
using (var cmd = new SQLiteCommand("SELECT [TimeStamp] FROM [Events]", conn))
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
var timestamp = (long)reader["Timestamp"];
timestamp.Should().Be(utcNow.Ticks);
}
}
}
}
public void Retrieving_all_events_should_return_the_same_as_added()
{
var targetStore = new MsSqlServerEventStore(connectionString);
var aggregateId = Guid.NewGuid();
var entityId = Guid.NewGuid();
int sequenceCounter = 1;
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), aggregateId, sequenceCounter++, DateTime.UtcNow, "Foo",
35),
new CustomerNameChanged(Guid.NewGuid(), aggregateId, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), aggregateId, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), aggregateId, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter),
new AccountNameChangedEvent(Guid.NewGuid(), aggregateId, entityId, sequenceCounter++, DateTime.UtcNow, "New Account Title" + sequenceCounter)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(aggregateId);
eventSource.Stub(e => e.InitialVersion).Return(0);
eventSource.Stub(e => e.Version).Return(events.Length);
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events);
targetStore.Save(eventSource);
var result = targetStore.GetAllEvents(aggregateId);
result.Count().Should().Be(events.Length);
result.First().EventIdentifier.Should().Be(events.First().EventIdentifier);
var foundEntityId = result.ElementAt(4).As<SourcedEntityEvent>().EntityId;
foundEntityId.Should().Be(entityId);
}
static void Process(SourcedEvent evnt)
{
Thread.Sleep(200);
Interlocked.Increment(ref _processedEvents);
Console.WriteLine("Processing event {0} (id {1})", evnt.EventSequence, evnt.EventIdentifier);
_bus.Publish(evnt);
}
/// <summary>
/// Handles the event.
/// </summary>
/// <param name = "evnttData">The event data to handle.
/// <remarks>
/// This value should not be <c>null</c>.
/// </remarks>
/// </param>
/// <returns>
/// <c>true</c> when the event was handled; otherwise, <c>false</c>.
/// <remarks>
/// <c>false</c> does not mean that the handling failed, but that the
/// handler was not interested in handling this event.
/// </remarks>
/// </returns>
public bool HandleEvent(SourcedEvent evnt)
{
Contract.Requires<ArgumentNullException>(evnt != null, "The Event cannot be null.");
var handled = false;
if (ShouldHandleThisEventData(evnt))
{
_handler(evnt);
handled = true;
}
return handled;
}
public void Save_SmokeTest()
{
var sequenceCounter = 0;
var id=Guid.NewGuid();
var events = new SourcedEvent[]{
new CustomerCreatedEvent(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Foo", 35),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Name" + sequenceCounter),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Name" + sequenceCounter)
};
var source = MockRepository.GenerateMock<IEventSource>();
source.Stub(e => e.EventSourceId).Return(id);
source.Stub(e => e.InitialVersion).Return(0);
source.Stub(e => e.Version).Return(events.Length);
source.Stub(e => e.GetUncommittedEvents()).Return(events);
_store.Save(source);
}
public EventAppliedArgs(SourcedEvent appliedEvent)
{
AppliedEvent = appliedEvent;
}
private void OnFoo(SourcedEvent e)
{
FooEventHandlerInvokeCount++;
}
public void OnDomainEvent(SourcedEvent e1, SourcedEvent e2)
{
}
private void ValidateHistoricalEvent(SourcedEvent evnt)
{
if (evnt.EventSourceId != EventSourceId)
{
var message = String.Format("Cannot apply historical event from other event source.");
throw new InvalidOperationException(message);
}
if (evnt.EventSequence != InitialVersion + 1)
{
var message = String.Format("Cannot apply event with sequence {0}. Since the initial version of the " +
"aggregate root is {1}. Only an event with sequence number {2} can be applied.",
evnt.EventSequence, InitialVersion, InitialVersion + 1);
throw new InvalidOperationException(message);
}
}
public void Initializing_from_history_should_not_throw_an_exception_when_the_history_was_empty()
{
var theAggregate = new MyAggregateRoot();
IEnumerable<SourcedEvent> history = new SourcedEvent[0];
theAggregate.InitializeFromHistory(history);
}
public new void ApplyEvent(SourcedEvent e)
{
base.ApplyEvent(e);
}
private void SaveEvent(SourcedEvent evnt, Guid eventSourceId, SQLiteTransaction transaction)
{
if (evnt == null || transaction == null) throw new ArgumentNullException();
using (var dataStream = new MemoryStream())
{
var bag = _converter.Convert(evnt);
var formatter = new BinaryFormatter();
formatter.Serialize(dataStream, bag);
var data = dataStream.ToArray();
using (var cmd = new SQLiteCommand(Query.InsertNewEventQuery, transaction.Connection))
{
cmd.SetTransaction(transaction)
.AddParam("Id", eventSourceId)
.AddParam("Name", evnt.GetType().FullName)
.AddParam("Sequence", evnt.EventSequence)
.AddParam("Data", data);
cmd.ExecuteNonQuery();
}
}
}
protected internal void ApplyEvent(SourcedEvent evnt)
{
_uncommittedEvents.Append(evnt);
HandleEvent(evnt);
OnEventApplied(evnt);
}
protected virtual void HandleEvent(SourcedEvent evnt)
{
Contract.Requires<ArgumentNullException>(evnt != null, "The Event cannot be null.");
Boolean handled = false;
// Get a copy of the handlers because an event
// handler can register a new handler. This will
// cause the _eventHandlers list to be modified.
// And modification while iterating it not allowed.
var handlers = new List<ISourcedEventHandler>(_eventHandlers);
foreach (var handler in handlers)
{
handled |= handler.HandleEvent(evnt);
}
if (!handled)
throw new EventNotHandledException(evnt);
}
public static void MyEventHandlerMethod(SourcedEvent e)
{
}
private void CatchAllEventHandler(SourcedEvent e)
{
CatchAllEventHandlerInvokeCount++;
}
public void MyEventHandlerMethod(SourcedEvent e1, SourcedEvent e2)
{
}
public bool HandleEvent(SourcedEvent sourcedEvent)
{
Contract.Requires<ArgumentNullException>(sourcedEvent != null, "The sourcedEvent cannot be null.");
return default(bool);
}
public static void OnDomainEvent(SourcedEvent e)
{
}
protected virtual void HandleEvent(SourcedEvent evnt)
{
Contract.Requires<ArgumentNullException>(evnt != null, "The Event cannot be null.");
Boolean handled = false;
foreach (var handler in _eventHandlers)
{
handled |= handler.HandleEvent(evnt);
}
if (!handled)
throw new EventNotHandledException(evnt);
}
protected virtual void OnEventApplied(SourcedEvent appliedEvent)
{
// Nothing to do. Allow override from subclassers.
}
public void Saving_event_source_while_there_is_a_newer_event_source_should_throw_concurency_exception()
{
var targetStore = new RavenDBEventStore(_documentStore);
var id = Guid.NewGuid();
int sequenceCounter = 0;
var events = new SourcedEvent[]
{
new CustomerCreatedEvent(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow, "Foo",
35),
new CustomerNameChanged(Guid.NewGuid(), id, sequenceCounter++, DateTime.UtcNow,
"Name" + sequenceCounter)
};
var eventSource = MockRepository.GenerateMock<IEventSource>();
eventSource.Stub(e => e.EventSourceId).Return(id).Repeat.Any();
eventSource.Stub(e => e.InitialVersion).Return(0).Repeat.Any();
eventSource.Stub(e => e.Version).Return(events.Length).Repeat.Any();
eventSource.Stub(e => e.GetUncommittedEvents()).Return(events).Repeat.Any();
targetStore.Save(eventSource);
Action act = () => targetStore.Save(eventSource);
act.ShouldThrow<ConcurrencyException>();
}
private void ApplyEventFromHistory(SourcedEvent evnt)
{
ValidateHistoricalEvent(evnt);
HandleEvent(evnt);
}
public void OnOrderLineCreated(SourcedEvent evnt)
{
_lines.Add(new OrderLine(((OrderLineCreatedEvent)evnt).Value));
}
private void CatchAllHandler(SourcedEvent e)
{
}
