public InventoryItemDTO GetInventoryItem(Guid id)
{
InventoryItemDTO dto = null;
Within.Transaction(_connectionString, transaction =>
{
const string commandText = "SELECT Name, Description, Count, IsActive, Version FROM InventoryItems WHERE AggregateId = @aggregateId";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
command.Parameters.Add(new SqlParameter("@aggregateId", id));
using (var reader = command.ExecuteReader())
{
while (reader != null && reader.Read())
{
dto = new InventoryItemDTO
{
Id = id,
Version = (int)reader["Version"],
Name = (string)reader["Name"],
Description = (string)reader["Description"],
Count = (int)reader["Count"],
Active = (bool)reader["IsActive"],
};
}
}
}
});
return(dto);
}
public void ShouldBeAbleToCancelSchedule(WorkType workType)
{
var output = new List <string>();
var interval = TimeSpan.FromMilliseconds(100);
var task = default(Task);
switch (workType)
{
case WorkType.Sync:
task = _scheduler.Schedule(() => output.Add("one"), interval);
break;
case WorkType.Async:
task = _scheduler.Schedule(async() =>
{
output.Add("one");
await Task.Yield();
}, interval);
break;
default:
throw new Exception($"Unhandled test case {workType}.");
}
Within.FiveSeconds(() => output.Should().Equal(Enumerable.Repeat("one", 1)));
_scheduler.CancelCurrent();
Within.FiveSeconds(() => task.IsCanceled.Should().BeTrue());
var marker = output.Count;
For.OneSecond(() => output.Count.Should().Be(marker));
}
public IEnumerable <InventoryItemSummaryDTO> GetSummaries()
{
var dtos = new List <InventoryItemSummaryDTO>();
Within.Transaction(_connectionString, transaction =>
{
const string commandText = "SELECT AggregateId, Name FROM InventoryItems";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
using (var reader = command.ExecuteReader())
{
while (reader != null && reader.Read())
{
dtos.Add(new InventoryItemSummaryDTO
{
Id = (Guid)reader["AggregateId"],
Name = (string)reader["Name"]
});
}
}
}
});
return(dtos);
}
public static ICriteria <T> Within <T>(this IPredicate <T> predicate, IGeometry value)
{
var root = (IRestorableQuery <T>)predicate;
var @operator = new Within();
var criteria = new SpatialSingleCriteria <T>(root.RootQuery, predicate, @operator, value);
root.RootQuery.Criterias.Add(criteria);
return(criteria);
}
public override void Handle(InventoryItemActivatedEvent e)
{
Within.Transaction(_dbConfig.ConnectionString, transaction =>
{
const string commandText = "UPDATE InventoryItems SET IsActive = 1, Version = Version + 1 WHERE AggregateId = @aggregateId";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
command.Parameters.Add(new SqlParameter("@aggregateId", e.AggregateId));
command.ExecuteNonQuery();
}
});
}
protected override void InitNodes(TreeNode node)
{
_ParentNode = AddSectionNode(node, typeof(UClass).Name);
AddSimpleObjectNode(_ParentNode, Within, "Within", Within != null ? Within.GetImageName() : "");
var classFlagsNode = AddTextNode(_ParentNode, "Class Flags:" + UnrealMethods.FlagToString(ClassFlags));
classFlagsNode.ToolTipText = UnrealMethods.FlagsListToString(
UnrealMethods.FlagsToList(typeof(Flags.ClassFlags), ClassFlags)
);
base.InitNodes(_ParentNode);
}
public override void Handle(InventoryItemDetailsChangedEvent e)
{
Within.Transaction(_dbConfig.ConnectionString, transaction =>
{
const string commandText = "UPDATE InventoryItems SET Name = @name, Description = @description, Version = Version + 1 WHERE AggregateId = @aggregateId";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
command.Parameters.Add(new SqlParameter("@aggregateId", e.AggregateId));
command.Parameters.Add(new SqlParameter("@name", e.Name));
command.Parameters.Add(new SqlParameter("@description", e.Description));
command.ExecuteNonQuery();
}
});
}
public void ShouldBeAbleToScheduleWorkToRepeatAtAFixedInterval(WorkType workType, ActorScheduleOptions actorScheduleOptions)
{
var barrier = new TaskCompletionSource <bool>();
var expectedInterval = TimeSpan.FromMilliseconds(100);
var times = new List <DateTime>();
var sampleSize = 5;
void Adder()
{
if (times.Count < sampleSize)
{
times.Add(DateTime.UtcNow);
}
if (times.Count == sampleSize)
{
// Block here so that we can assess something that's not moving
barrier.Task.Wait();
}
}
switch (workType)
{
case WorkType.Sync:
_scheduler.Schedule((Action)Adder, expectedInterval, actorScheduleOptions);
break;
case WorkType.Async:
_scheduler.Schedule(async() =>
{
await Task.Yield();
Adder();
},
expectedInterval,
actorScheduleOptions);
break;
default:
throw new Exception($"Unhandled test case {workType}.");
}
Within.FiveSeconds(() => times.Count.Should().Be(sampleSize));
var actualIntervals = times.Take(sampleSize - 1).Zip(times.Skip(1), (x, y) => y - x).ToList();
// Use 75ms instead of 100ms to give it a bit of latitude: mainly we just want to make sure there is some delaying going on.
actualIntervals.Should().OnlyContain(x => x >= TimeSpan.FromMilliseconds(75));
barrier.SetResult(true);
}
public void ShouldBeAbleToConfigureScheduleToRescheduleInCaseOfUnexpectedErrorButNotCancellation(WorkType workType)
{
var interval = TimeSpan.FromMilliseconds(100);
var times = new List <DateTime>();
var emittedException = default(Exception);
var task = default(Task);
switch (workType)
{
case WorkType.Sync:
task = _scheduler.Schedule(() =>
{
times.Add(DateTime.UtcNow);
if (times.Count == 3)
{
throw new InvalidOperationException("Pah!");
}
}, interval, ActorScheduleOptions.Default, x => emittedException = x);
break;
case WorkType.Async:
task = _scheduler.Schedule(async() =>
{
times.Add(DateTime.UtcNow);
await Task.Yield();
if (times.Count == 3)
{
throw new InvalidOperationException("Pah!");
}
}, interval, ActorScheduleOptions.Default, x => emittedException = x);
break;
default:
throw new Exception($"Unhandled test case {workType}.");
}
Within.FiveSeconds(() => times.Count.Should().BeGreaterOrEqualTo(4));
emittedException.Should().BeOfType <InvalidOperationException>().Which.Message.Should().Be("Pah!");
_scheduler.CancelCurrent();
Within.FiveSeconds(() => task.IsCanceled.Should().BeTrue());
}
public override void Handle(InventoryItemCreatedEvent e)
{
Within.Transaction(_dbConfig.ConnectionString, transaction =>
{
const string commandText = "INSERT INTO InventoryItems VALUES(@aggregateId, @name, @description, @count, @isActive, @version)";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
command.Parameters.Add(new SqlParameter("@aggregateId", e.AggregateId));
command.Parameters.Add(new SqlParameter("@name", e.Name));
command.Parameters.Add(new SqlParameter("@description", e.Description));
command.Parameters.Add(new SqlParameter("@count", e.Count));
command.Parameters.Add(new SqlParameter("@isActive", e.IsActive));
command.Parameters.Add(new SqlParameter("@version", 1));
command.ExecuteNonQuery();
}
});
}
public void Save(IEventProvider eventProvider)
{
Within.Transaction(_dbConfig.ConnectionString, transaction =>
{
int version = GetEventProviderVersion(eventProvider.Id, transaction);
if (version == -1)
{
StoreEventProvider(eventProvider, transaction);
}
if (version > eventProvider.Version)
{
throw new ConcurrencyViolationException();
}
eventProvider.GetChanges().ForEach(e => StoreChange(e, eventProvider.Id, transaction));
UpdateEventProviderVersion(eventProvider, transaction);
});
}
public IEnumerable <IEvent> GetEventsFromVersionForEventProvider(Guid id, int version)
{
var events = new List <IEvent>();
Within.Transaction(_dbConfig.ConnectionString, transaction =>
{
const string commandText = "SELECT Data FROM Event WHERE EventProvider_Id = @eventProviderId AND Version > @version";
using (var command = new SqlCommand(commandText, transaction.Connection, transaction))
{
command.Parameters.Add(new SqlParameter("@eventProviderId", id));
command.Parameters.Add(new SqlParameter("@version", version));
using (var reader = command.ExecuteReader())
{
while (reader != null && reader.Read())
{
events.Add(_serializer.Deserialize((byte[])reader["Data"]));
}
}
}
});
return(events);
}
public void ShouldNotBeAbleToResumeWorkAfterStop(ResumeTestCase resumeTestCase, StopWorkOutcome stopWorkOutcome)
{
var actor1 = CreateActor(
x => x.StopWork = new ActorStopWork(
() =>
{
if (stopWorkOutcome == StopWorkOutcome.Faults)
{
throw new InvalidOperationException("Never meant to be");
}
}));
var actor2 = CreateActor();
var pretrigger = new TaskCompletionSource <bool>();
var trigger = new TaskCompletionSource <bool>();
var suspendWork = default(Func <Task <int> >);
var stages = new List <string>();
var expectedStageOrder =
new List <string>
{
"PreSuspend",
"PreTriggerWait",
"PostTriggerWait"
};
int OffActorWork()
{
stages.Add("PreTriggerWait");
pretrigger.SetResult(true);
ThrowIfWaitTimesOut(trigger.Task);
stages.Add("PostTriggerWait");
return(345);
}
switch (resumeTestCase)
{
case ResumeTestCase.AwaitOnSecondActor:
suspendWork = () => actor2.Enqueue((Func <int>)OffActorWork);
break;
case ResumeTestCase.AwaitOnTaskFactoryScheduledTask:
suspendWork = () => new TaskFactory(TaskScheduler.Default).StartNew(OffActorWork);
break;
default:
throw new Exception($"Unhandled test case {resumeTestCase}.");
}
//var task1 =
actor1.Enqueue(
async() =>
{
stages.Add("PreSuspend");
var value = await suspendWork();
stages.Add("PostSuspend");
return(value * 37);
});
pretrigger.Task.AwaitingShouldCompleteIn(_waitTimeout);
stages.Should().Equal(expectedStageOrder.Take(2));
var stopTask = actor1.Stop();
MarkAlreadyStopped();
switch (stopWorkOutcome)
{
case StopWorkOutcome.Completes:
stopTask.AwaitingShouldCompleteIn(_waitTimeout);
break;
case StopWorkOutcome.Faults:
((Func <Task>)(async() => await stopTask)).Should().Throw <InvalidOperationException>().WithMessage("Never meant to be");
break;
default:
throw new Exception($"Unhandled test case {stopWorkOutcome}.");
}
trigger.SetResult(true);
Within.OneSecond(() => stages.Should().Equal(expectedStageOrder));
For.OneSecond(() => stages.Should().Equal(expectedStageOrder));
// The below would be nice but has proved intractable to achieve.
//task1.Awaiting(async x => await x).ShouldThrow<TaskCanceledException>();
actor2.Stop().Wait();
}
public void ASecondCallToScheduleShouldCancelTheWorkPreviouslyScheduled(WorkType workType1, WorkType workType2)
{
var output = new List <string>();
var interval = TimeSpan.FromMilliseconds(100);
var task1 = default(Task);
var firstTwoAddedPromise = new TaskCompletionSource <bool>();
var gotAOneAfterATwoPromise = new TaskCompletionSource <bool>();
void Adder(string x)
{
output.Add(x);
if (x == "two")
{
firstTwoAddedPromise.TrySetResult(true);
}
else if (firstTwoAddedPromise.Task.IsCompleted && x == "one")
{
gotAOneAfterATwoPromise.TrySetResult(true);
}
}
switch (workType1)
{
case WorkType.Sync:
task1 = _scheduler.Schedule(() => { Adder("one"); }, interval);
break;
case WorkType.Async:
task1 = _scheduler.Schedule(async() =>
{
await Task.Delay(TimeSpan.FromMilliseconds(10));
Adder("one");
}, interval);
break;
default:
throw new Exception($"Unhandled test case {workType1}.");
}
Within.FiveSeconds(() => output.Count.Should().BeGreaterOrEqualTo(1));
switch (workType2)
{
case WorkType.Sync:
_scheduler.Schedule(() => { Adder("two"); }, interval);
break;
case WorkType.Async:
_scheduler.Schedule(async() =>
{
Adder("two");
await Task.Yield();
}, interval);
break;
default:
throw new Exception($"Unhandled test case {workType2}.");
}
firstTwoAddedPromise.Task.AwaitingShouldCompleteIn(TimeSpan.FromSeconds(5));
For.OneSecond(() => gotAOneAfterATwoPromise.Task.IsCompleted.Should().BeFalse("The first bit of work is still being scheduled."));
task1.IsCanceled.Should().BeTrue();
}
