/// <summary>
/// Create a subscriptionId that is unique per grainId, grainType, namespace combination.
/// </summary>
/// <param name="grainIdTypeCode"></param>
/// <param name="streamId"></param>
/// <returns></returns>
private Guid MakeSubscriptionGuid(int grainIdTypeCode, StreamId streamId)
{
// next 2 shorts ing guid are from namespace hash
int namespaceHash = streamId.Namespace.GetHashCode();
byte[] namespaceHashByes = BitConverter.GetBytes(namespaceHash);
short s1 = BitConverter.ToInt16(namespaceHashByes, 0);
short s2 = BitConverter.ToInt16(namespaceHashByes, 2);
// Tailing 8 bytes of the guid are from the hash of the streamId Guid and a hash of the full streamId.
// get streamId guid hash code
int streamIdGuidHash = streamId.Guid.GetHashCode();
// get full streamId hash code
int streamIdHash = streamId.GetHashCode();
// build guid tailing 8 bytes from grainIdHash and the hash of the full streamId.
var tail = new List <byte>();
tail.AddRange(BitConverter.GetBytes(streamIdGuidHash));
tail.AddRange(BitConverter.GetBytes(streamIdHash));
// make guid.
// - First int is grain type
// - Two shorts from namespace hash
// - 8 byte tail from streamId Guid and full stream hash.
return(SubscriptionMarker.MarkAsImplictSubscriptionId(new Guid(grainIdTypeCode, s1, s2, tail.ToArray())));
}
public override int GetHashCode()
{
// This code was auto-generated by ReSharper
unchecked
{
return(((Stream != null ? Stream.GetHashCode() : 0) * 397) ^ (Producer != null ? Producer.GetHashCode() : 0));
}
}
public override int GetHashCode()
{
return(streamId.GetHashCode());
}
/// <inheritdoc/>
public QueueId GetQueueForStream(StreamId streamId)
{
return(hashRing.CalculateResponsible((uint)streamId.GetHashCode()));
}
