public TAggregate GetById <TAggregate>(Guid id, int version) where TAggregate : class, IEventSource
{
if (version <= 0)
{
throw new InvalidOperationException("Cannot get version <= 0");
}
var streamName = _streamNameBuilder.GenerateForAggregate(typeof(TAggregate), id);
var aggregate = ConstructAggregate <TAggregate>();
long sliceStart = 0;
StreamEventsSlice currentSlice;
var appliedEventCount = 0;
do
{
long sliceCount = sliceStart + ReadPageSize <= version
? ReadPageSize
: version - sliceStart;
currentSlice = _streamStoreConnection.ReadStreamForward(streamName, sliceStart, (int)sliceCount);
if (currentSlice is StreamNotFoundSlice)
{
throw new AggregateNotFoundException(id, typeof(TAggregate));
}
if (currentSlice is StreamDeletedSlice)
{
throw new AggregateDeletedException(id, typeof(TAggregate));
}
sliceStart = currentSlice.NextEventNumber;
appliedEventCount += currentSlice.Events.Length;
aggregate.RestoreFromEvents(currentSlice.Events.Select(evt => _eventSerializer.Deserialize(evt)));
} while (version > currentSlice.NextEventNumber && !currentSlice.IsEndOfStream);
if (version != Int32.MaxValue && version != appliedEventCount)
{
throw new AggregateVersionException(id, typeof(TAggregate), version, aggregate.ExpectedVersion);
}
if (version != Int32.MaxValue && aggregate.ExpectedVersion != version - 1)
{
throw new AggregateVersionException(id, typeof(TAggregate), version, aggregate.ExpectedVersion);
}
return(aggregate);
}
public void ThrowsOnGetDeletedAggregate()
{
var aggregateId = SaveTestAggregateWithoutCustomHeaders(_repo, 10);
var streamName = _streamNameBuilder.GenerateForAggregate(typeof(TestWoftamAggregate), aggregateId);
_connection.DeleteStream(new StreamName(streamName), 10);
// Assert.Throws<AggregateDeletedException>(() => _repo.GetById<TestAggregate>(aggregateId));
//Looks like an api change
Assert.Throws <AggregateNotFoundException>(() => _repo.GetById <TestWoftamAggregate>(aggregateId));
}
/// <summary>
/// Aggregate Stream listener
/// i.e. [AggregateType]-[id]
/// </summary>
/// <typeparam name="TAggregate">The Aggregate type used to generate the stream name</typeparam>
/// <param name="id"></param>
/// <param name="checkpoint"></param>
/// <param name="blockUntilLive"></param>
/// <param name="timeout">timeout in milliseconds default = 1000</param>
public void Start <TAggregate>(
Guid id,
long?checkpoint = null,
bool blockUntilLive = false,
int timeout = 1000) where TAggregate : class, IEventSource
{
Start(
_streamNameBuilder.GenerateForAggregate(typeof(TAggregate), id),
checkpoint,
blockUntilLive,
timeout);
}
/// <summary>
/// Aggregate Stream listener
/// i.e. [AggregateType]-[id]
/// </summary>
/// <typeparam name="TAggregate">The Aggregate type used to generate the stream name</typeparam>
/// <param name="id"></param>
/// <param name="checkpoint"></param>
/// <param name="blockUntilLive"></param>
/// <param name="cancelWaitToken">Cancellation token to cancel waiting if blockUntilLive is true</param>
public void Start <TAggregate>(
Guid id,
long?checkpoint = null,
bool blockUntilLive = false,
CancellationToken cancelWaitToken = default(CancellationToken)) where TAggregate : class, IEventSource
{
Start(
_streamNameBuilder.GenerateForAggregate(typeof(TAggregate), id),
checkpoint,
blockUntilLive,
cancelWaitToken);
}
/// <summary>
/// Aggregate-[id] Stream Reader
/// i.e. [AggregateType]-[id]
/// </summary>
/// <typeparam name="TAggregate">The Aggregate type used to generate the stream name</typeparam>
/// <param name="id">Aggregate id to generate stream name.</param>
/// <param name="checkpoint">The starting point to read from.</param>
/// <param name="count">The count of items to read</param>
/// <param name="readBackwards">Read the stream backwards</param>
/// <returns>Returns true if any events were read from the stream</returns>
public bool Read <TAggregate>(
Guid id,
long?checkpoint = null,
long?count = null,
bool readBackwards = false) where TAggregate : class, IEventSource
{
return(Read(
_streamNameBuilder.GenerateForAggregate(typeof(TAggregate), id),
checkpoint,
count,
readBackwards));
}
private void CreateUser()
{
var evt = MessageBuilder.New(
() => new UserMsgs.UserCreated(
_userId,
_userSidFromAuthProvider,
AuthProvider,
AuthDomain,
UserName,
FullName,
GivenName,
Surname,
Email));
var stream = _streamNamer.GenerateForAggregate(typeof(User), _userId);
_fixture.StreamStoreConnection.AppendToStream(
stream,
ExpectedVersion.Any,
null,
_fixture.EventSerializer.Serialize(evt));
_fixture.RepositoryEvents.WaitForMsgId(evt.MsgId, TimeSpan.FromMilliseconds(100));
_fixture.ClearQueues();
}
public StreamReaderTests(ITestOutputHelper toh, StreamStoreConnectionFixture fixture)
{
_toh = toh;
_streamNameBuilder = new PrefixedCamelCaseStreamNameBuilder("UnitTest");
var mockStreamStore = new MockStreamStoreConnection("Test-" + Guid.NewGuid());
mockStreamStore.Connect();
_stores.Add(mockStreamStore);
_stores.Add(fixture.Connection);
_streamName = _streamNameBuilder.GenerateForAggregate(typeof(TestAggregate), Guid.NewGuid());
foreach (var store in _stores)
{
AppendEvents(NUM_OF_EVENTS, store, _streamName);
}
}
public StreamStoreSubscriptionTests(StreamStoreConnectionFixture fixture)
{
_admin = fixture.AdminCredentials;
_streamNameBuilder = new PrefixedCamelCaseStreamNameBuilder("UnitTest");
var mockStreamStore = new MockStreamStoreConnection(nameof(MockStreamStoreConnection));
mockStreamStore.Connect();
fixture.Connection.Connect();
_stores.Add(mockStreamStore);
_stores.Add(fixture.Connection);
_streamName = _streamNameBuilder.GenerateForAggregate(typeof(TestAggregate), Guid.NewGuid());
var eventCount = 10;
foreach (var store in _stores)
{
AppendEvents(eventCount, store, _streamName);
}
}