/// <summary>
/// Loads and returns an aggregate by id, from the store.
/// </summary>
public async Task <T> Load <T>(string aggregateId, CancellationToken cancellationToken = default)
where T : Aggregate, new()
{
if (IsNullOrWhiteSpace(aggregateId))
{
throw new ArgumentException("Value cannot be null or whitespace.", nameof(aggregateId));
}
var stream = _getStreamName(typeof(T), aggregateId);
var aggregate = new T();
var nextPageStart = 0L;
do
{
var page = await _connection.ReadStreamEventsForwardAsync(
stream, nextPageStart, MaxReadSize, false, _userCredentials);
if (page.Events.Length > 0)
{
aggregate.Load(
page.Events.Last().Event.EventNumber,
page.Events.Select(re => _serializer.Deserialize(
re.Event.Data, _typeMapper.GetType(re.Event.EventType)
)).ToArray());
}
nextPageStart = !page.IsEndOfStream ? page.NextEventNumber : -1;
} while (nextPageStart != -1);
Log.Debug("Loaded {aggregate} changes from stream {stream}", aggregate, stream);
return(aggregate);
}
public static object Deserialze(this ResolvedEvent resolvedEvent)
{
var dataType = TypeMapper.GetType(resolvedEvent.Event.EventType);
var jsonData = Encoding.UTF8.GetString(resolvedEvent.Event.Data);
var data = JsonConvert.DeserializeObject(jsonData, dataType);
return(data);
}
