public PeerFindPeer() : base()
{
this.Pattern = (s, k, i) => s == PeerOrder.PeerFindPeer;
this.Apply = (s, k, i) =>
{
var key = HashKey.ComputeHash(k.ToString());
var current = (LinkedTo as PeerBehaviors <TKey, TValue>).CurrentPeer;
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture, "Search Key {0} in {1}", key.ToString(), current.ToString()), "PeerBehavior");
if (key.CompareTo(current) <= 0)
{
// Store here
i.SendMessage(LinkedActor as IPeerActor <TKey, TValue>);
}
else
{
// find best peer
var nextPeer = (LinkedTo as PeerBehaviors <TKey, TValue>).Peers
.Where(n => n.Key.CompareTo(current) > 0).OrderBy(n => n.Key).FirstOrDefault();
if (nextPeer.Key != null)
{
nextPeer.Value.SendMessage(s, k, i);
}
else
{
i.SendMessage(LinkedActor as IPeerActor <TKey, TValue>);
}
}
};
}
public AgentActor()
{
Become(new Behavior <IPeerActor <TKey, TValue> >(
a =>
{
var keys = a.AskKeys();
var peers = a.AskPeers();
// peek key out of centroid
var key = CenterKey <TKey> .Calc(keys.Result());
// calc nearest peer
var orderedPeers = peers.Result().OrderBy(n => n.GetPeerHashKey().ToString());
var hashKey = HashKey.ComputeHash(key.ToString());
foreach (var peer in orderedPeers)
{
if (hashKey.CompareTo(peer.GetPeerHashKey()) > 0)
{
// deposit
// get current K V
var result = a.GetNode(key).Result();
if (result != null)
{
// set current K V
(peer as IPeerActor <TKey, TValue>).StoreNode(key, result);
}
break;
}
}
}));
}
public override bool Equals(object obj)
{
HashKey other = obj as HashKey; //avoid double casting
if (object.ReferenceEquals(other, null))
{
return(false);
}
return(this.CompareTo(other) == 0);
}
public static int Compare(HashKey left, HashKey right)
{
if (object.ReferenceEquals(left, right))
{
return(0);
}
if (object.ReferenceEquals(left, null))
{
return(-1);
}
return(left.CompareTo(right));
}
public static TKey Calc(IEnumerable <TKey> keys)
{
CheckArg.IEnumerable(keys);
var dic = new Dictionary <HashKey, TKey>();
foreach (var k in keys)
{
dic[HashKey.ComputeHash(k.ToString())] = k;
}
var elected = dic.Keys.OrderBy(h => h.ToString()).FirstOrDefault();
return(dic[elected]);
}
public void NewPeer(IPeerActor <TKey, TValue> actor, HashKey hash)
{
this.SendMessage(PeerOrder.PeerNewPeer, actor, hash);
}
