public async Task <TAggregate> RehydrateAsync(
TAggregateId aggregateId,
CancellationToken cancellationToken = default)
{
var connection = await _connectionWrapper.GetConnectionAsync(cancellationToken)
.ConfigureAwait(false);
var streamName = GetStreamName(aggregateId);
var events = new List <IDomainEvent <TAggregateId> >();
StreamEventsSlice currentSlice;
long nextSliceStart = StreamPosition.Start;
do
{
currentSlice = await connection.ReadStreamEventsForwardAsync(
streamName,
nextSliceStart,
200,
false)
.ConfigureAwait(false);
nextSliceStart = currentSlice.NextEventNumber;
events.AddRange(currentSlice.Events.Select(Map));
} while (!currentSlice.IsEndOfStream);
var result = Aggregate <TAggregate, TAggregateId> .Create(
events.OrderBy(
e => e.AggregateVersion));
return(result);
}
/// <summary>Get a <see cref="PathState"/> for the given combination of parameters, creating one if necessary.</summary>
/// <param name="game"></param>
/// <param name="fileManager"></param>
/// <param name="path"></param>
/// <returns></returns>
public PathState GetPathState(Game game, FileManager fileManager, string path)
{
if (game == null)
{
throw new ArgumentNullException("game");
}
if (fileManager == null)
{
throw new ArgumentNullException("fileManager");
}
var id = Aggregate.Create(fileManager.Id, game, path);
PathState state;
path = path.Replace('\\', '/');
if (!PathStates.TryGetValue(id, out state))
{
Type stateType = game.StateType;
if (stateType == null)
{
throw new ArgumentException(string.Format("The game {0} does not have an accepted {1} state type.", game, typeof(State).Name));
}
ConstructorInfo constructor = stateType.GetConstructor(new Type[] { typeof(AlexandriaManager), typeof(string), typeof(FileManager) });
if (constructor == null)
{
throw new Exception(string.Format("State type {0} does not have an appropriate constructor, like the one for {1}.", stateType.FullName, typeof(State).FullName));
}
state = (PathState)constructor.Invoke(new object[] { this, path, fileManager });
PathStates[id] = state;
}
return(state);
}
