public async Task <long> GetEventsAsync(string actorName, long indexStart, long indexEnd,
Action <object> callback)
{
StreamEventsSlice slice;
var start = indexStart;
do
{
var count = (int)Math.Min(indexEnd - start, 199) + 1;
slice = await connection.ReadStreamEventsForward(actorName, start, count, false);
foreach (var resolvedEvent in slice.Events)
{
var data = resolvedEvent.Event.Data;
if (resolvedEvent.Event.Metadata.Length > 0)
{
var metadata = JObject.Parse(Encoding.UTF8.GetString(resolvedEvent.Event.Metadata));
if (metadata["encoding"].Value <string>() == "gzip")
{
using (var originalStream = new MemoryStream())
{
using (var compressedStream = new MemoryStream(data))
using (var gZipStream = new GZipStream(compressedStream, CompressionMode.Decompress))
{
gZipStream.CopyTo(originalStream);
}
data = originalStream.ToArray();
}
}
}
var eventType = Type.GetType($"SM.Service.Messages.{resolvedEvent.Event.EventType}");
var message = (IMessage)Activator.CreateInstance(eventType);
message.MergeFrom(data);
callback(message);
}
start = slice.NextEventNumber;
} while (start <= indexEnd && !slice.IsEndOfStream);
return(slice.NextEventNumber);
}
public async Task <long> GetEventsAsync(string actorName, long indexStart, long indexEnd,
Action <object> callback)
{
StreamEventsSlice slice;
var start = indexStart;
do
{
var count = (int)Math.Min(indexEnd - start, 199) + 1;
slice = await connection.ReadStreamEventsForward(actorName, start, count, false);
foreach (var resolvedEvent in slice.Events)
{
callback(resolvedEvent.Event.ToMessage());
}
start = slice.NextEventNumber;
} while (start <= indexEnd && !slice.IsEndOfStream);
return(slice.NextEventNumber);
}