private IActorRef GetShard(ShardId id)
{
//TODO: change on ConcurrentDictionary.GetOrAdd?
IActorRef region = null;
if (!Shards.TryGetValue(id, out region))
{
if (EntityProps == null || EntityProps.Equals(Actor.Props.Empty))
{
throw new IllegalStateException("Shard must not be allocated to a proxy only ShardRegion");
}
else if (ShardsByRef.Values.All(shardId => shardId != id))
{
Log.Debug("Starting shard [{0}] in region", id);
//val name = URLEncoder.encode(id, "utf-8")
var name = Uri.EscapeDataString(id);
var shardRef = Context.Watch(Context.ActorOf(PersistentShard.Props(
TypeName,
id,
EntityProps,
Settings,
IdExtractor,
ShardResolver,
HandOffStopMessage).WithDispatcher(Context.Props.Dispatcher), name));
ShardsByRef = ShardsByRef.SetItem(shardRef, id);
return(shardRef);
}
}
return(region ?? ActorRefs.Nobody);
}
public PersistentShardActor(
string typeName,
string shardId,
Props entityProps,
ClusterShardingSettings settings,
ExtractEntityId extractEntityId,
ExtractShardId extractShardId,
object handOffStopMessage)
{
_shardSemantic = new PersistentShard(
context: Context,
persistentContext: this,
unhandled: Unhandled,
typeName: typeName,
shardId: shardId,
entityProps: entityProps,
settings: settings,
extractEntityId: extractEntityId,
extractShardId: extractShardId,
handOffStopMessage: handOffStopMessage);
JournalPluginId = _shardSemantic.JournalPluginId;
SnapshotPluginId = _shardSemantic.SnapshotPluginId;
}
