internal override async Task<PlacementResult> OnSelectActivation(PlacementStrategy strategy, GrainId target, IPlacementContext context)
{
// first, check if we can find an activation for this client in the cache or local directory partition
AddressesAndTag addresses;
if (context.FastLookup(target, out addresses))
return ChooseRandomActivation(addresses.Addresses, context);
// we need to look up the directory entry for this grain on a remote silo
switch (target.Category)
{
case UniqueKey.Category.Client:
{
addresses = await context.FullLookup(target);
return ChooseRandomActivation(addresses.Addresses, context);
}
case UniqueKey.Category.GeoClient:
{
// we need to look up the activations in the remote cluster
addresses = await context.LookupInCluster(target, target.Key.ClusterId);
return ChooseRandomActivation(addresses.Addresses, context);
}
default:
throw new InvalidOperationException("Unsupported client type. Grain " + target);
}
}
public override async Task<PlacementResult> OnSelectActivation(PlacementStrategy strategy, GrainId target, IPlacementContext context)
{
// first, check if we can find an activation for this client in the cache or local directory partition
AddressesAndTag addresses;
if (context.FastLookup(target, out addresses))
return ChooseRandomActivation(addresses.Addresses, context);
// we need to look up the directory entry for this grain on a remote silo
switch (target.Category)
{
case UniqueKey.Category.Client:
{
addresses = await context.FullLookup(target);
return ChooseRandomActivation(addresses.Addresses, context);
}
case UniqueKey.Category.GeoClient:
{
// we need to look up the activations in the remote cluster
addresses = await context.LookupInCluster(target, target.Key.ClusterId);
return ChooseRandomActivation(addresses.Addresses, context);
}
default:
throw new InvalidOperationException("Unsupported client type. Grain " + target);
}
}
public static Task <AddressesAndTag> Lookup(this IPlacementContext @this, GrainId grainId)
{
AddressesAndTag l;
return(@this.FastLookup(grainId, out l) ? Task.FromResult(l) : @this.FullLookup(grainId));
}
public static Task <List <ActivationAddress> > Lookup(this IPlacementContext @this, GrainId grainId)
{
List <ActivationAddress> l;
return(@this.FastLookup(grainId, out l) ? Task.FromResult(l) : @this.FullLookup(grainId));
}