private void HandleGetClusterShardingStats(GetClusterShardingStats message)
{
var sender = Sender;
Task.WhenAll(
_aliveRegions.Select(regionActor => regionActor.Ask <ShardRegionStats>(GetShardRegionStats.Instance, message.Timeout).ContinueWith(r => Tuple.Create(regionActor, r.Result), TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.OnlyOnRanToCompletion))
).ContinueWith(allRegionStats =>
{
if (allRegionStats.IsCanceled)
{
return(new ClusterShardingStats(ImmutableDictionary <Address, ShardRegionStats> .Empty));
}
if (allRegionStats.IsFaulted)
{
throw allRegionStats.Exception; //TODO check if this is the right way
}
var regions = allRegionStats.Result.ToImmutableDictionary(i =>
{
Address regionAddress = i.Item1.Path.Address;
Address address = (regionAddress.HasLocalScope && regionAddress.System == Cluster.SelfAddress.System) ? Cluster.SelfAddress : regionAddress;
return(address);
}, j => j.Item2);
return(new ClusterShardingStats(regions));
}, TaskContinuationOptions.ExecuteSynchronously).PipeTo(sender);
}
