public void AuditDispatcherCallsCorrectMethods()
{
// Arrange
var repoMock = new Mock <IRepository>(MockBehavior.Strict);
repoMock.Setup(repo => repo.Insert(It.IsAny <SerializedEvent>()));
var e = new SerializedEvent {
Body = "AuditDispatcher.Test", TimeReceived = DateTime.Now
};
repoMock.Setup(repo => repo.FindBy(It.IsAny <Expression <Func <SerializedEvent, bool> > >()))
.Returns(() => new List <SerializedEvent>()
{
e
});
var pubMock = new Mock <IPublisher>(MockBehavior.Strict);
pubMock.Setup(pub => pub.Publish(It.IsAny <string>(), It.IsAny <SerializedEvent>()));
options.ExchangeName = "TestExchange1";
using (var target = new AuditDispatcher(repoMock.Object, pubMock.Object, options))
{
// Act
var command = new SendAllEventCommand {
returnQueueName = "Test.QueueName", StartTime = DateTime.MinValue, EndTime = DateTime.MaxValue
};
target.OnReceived(command);
// Assert
repoMock.Verify(repo => repo.FindBy(It.IsAny <Expression <Func <SerializedEvent, bool> > >()), Times.Once());
pubMock.Verify(pub => pub.Publish(It.IsAny <string>(), It.IsAny <SerializedEvent>()), Times.Once());
}
}
private void InsertEvent(SerializedEvent e, SqlConnection connection, SqlTransaction transaction)
{
const string query = @"
INSERT INTO logs.Event
(
AggregateIdentifier, AggregateVersion,
EventClass, EventType, EventData,
IdentityTenant, IdentityUser,
EventTime
)
VALUES
( @AggregateIdentifier, @AggregateVersion, @EventClass, @EventType, @EventData, @IdentityTenant, @IdentityUser, @EventTime )";
using (var command = new SqlCommand(query, connection, transaction))
{
var parameters = command.Parameters;
parameters.AddWithValue("AggregateIdentifier", e.AggregateIdentifier);
parameters.AddWithValue("AggregateVersion", e.AggregateVersion);
parameters.AddWithValue("EventClass", e.EventClass);
parameters.AddWithValue("EventType", e.EventType);
parameters.AddWithValue("EventData", e.EventData);
parameters.AddWithValue("IdentityTenant", e.IdentityTenant);
parameters.AddWithValue("IdentityUser", e.IdentityUser);
parameters.AddWithValue("EventTime", e.EventTime);
try
{
command.ExecuteNonQuery();
}
catch (SqlException ex) { throw new SqlInsertException($"The event ({e.EventType}) could not be saved.", ex); }
}
}
public void AddEvent(byte eventType, string eventSerialized)
{
SerializedEvent se = new SerializedEvent(eventType, eventSerialized);
events.Add(se);
}
public static Result <SerializedEventEntity> Create(SerializedEvent serializedEvent)
{
return(Result.Create(serializedEvent != null,
SerializedEventEntityErrors.UnableToCreateEntityForEmptyEvent.Build())
.OnSuccess(() => new SerializedEventEntity(serializedEvent)));
}
private SerializedEventEntity(SerializedEvent serializedEvent)
{
SerializedEvent = serializedEvent;
MessageId = Guid.NewGuid();
}
/// <remarks>
/// Timeout implementation inspired by: http://stackoverflow.com/questions/5018921/implement-c-sharp-timeout
/// </remarks>
public PollResponse PollEvents(long consumerVersion, string consumerName)
{
var ecv = this.store.CurrentEventCollectionVersion;
var newEvents = new SerializedEvent[0];
// last received version could be somehow less than 0. I found once that was -1,
// and was always pushing "0 events", as the signal r tracing showed (27/10/2015)
if (consumerVersion < 0)
{
consumerVersion = 0;
}
// the consumer says that is more updated than the source. That is an error. Maybe the publisher did not started yet!
if (ecv < consumerVersion)
{
return(PollResponse.CreateSerializedResponse(true, false, this.streamType, newEvents, consumerVersion, ecv));
}
bool newEventsWereFound = false;
var errorDetected = false;
var stopwatch = Stopwatch.StartNew();
while (!this.stopping && stopwatch.Elapsed < this.longPollingTimeout)
{
if (ecv == consumerVersion)
{
// consumer is up to date, and now is waiting until something happens!
Thread.Sleep(1);
ecv = this.store.CurrentEventCollectionVersion; // I Forgot to update!
}
// weird error, but is crash proof. Once i had an error where in an infinite loop there was an error saying: Pushing 0 events to....
// A Charly le paso. Sucede que limpio la base de datos y justo queria entregar un evento y no devolvia nada.
else if (ecv > consumerVersion)
{
newEvents = this.store.FindEventsForConsumer(consumerVersion, ecv, this.eventsToPushMaxCount, consumerName);
if (newEvents.Length > 0)
{
newEventsWereFound = true;
this.log.Trace($"{this.streamType} publisher is pushing {newEvents.Length} event/s to {consumerName}");
break;
}
else
{
// Lo que le paso a charly.
newEventsWereFound = false;
errorDetected = true;
var errorMessage = $"There is an error in the event store or a racy condition. The consumer [{consumerName}] version is {consumerVersion} and the local event collection version should be {ecv} but it is not.";
this.log.Error(errorMessage);
this.bus.Publish(new FatalErrorOcurred(new FatalErrorException(errorMessage)));
break;
}
}
else
{
// bizzare, but helpful to avoid infinite loops
break;
}
}
return(PollResponse.CreateSerializedResponse(errorDetected, newEventsWereFound, this.streamType, newEvents, consumerVersion, ecv));
}
public void Insert(SerializedEvent serializedEvent)
{
_context.SerializedEvents.Add(serializedEvent);
_context.SaveChanges();
}
public void Add(SerializedEvent @event)
{
this.Events.Add(@event);
}
public object Deserialize(SerializedEvent @event)
{
var type = Type.GetType(@event.Type);
return(JsonConvert.DeserializeObject(@event.Payload, type));
}
public IDomainEvent Deserialize(SerializedEvent serializedEvent)
{
var type = eventNameLookup.Single(l => l.Value == serializedEvent.EventName).Key;
return((IDomainEvent)JsonConvert.DeserializeObject(serializedEvent.EventData, type));
}