public bool DoInterNodeObjectTransfer(Node sourceNode, string key, ServerCacheItem cacheItem)
{
//note that DoInterNodeObjectTransfer could be called during a shutdown of the sourceNode too
//the below case happens only when this current node comes online
if (NodeState == Common.NodeState.WaitingForNeighbourNode)
{
NodeState = NodeState.ReceivingFromOtherNode;
heartBeatResetter.Change(6000, Timeout.Infinite); //keep resetting the timer
}
Func<string, ServerCacheItem, ServerCacheItem> updateValueFactory = ((x, y) => (cacheItem));
_localCache.AddOrUpdate(key, cacheItem, updateValueFactory);
return true;
}
public void StoreCacheItem(string key, ClientCacheItem value)
{
ServerCacheItem cacheItemWrapped;
if (!_localCache.TryGetValue(key, out cacheItemWrapped))
cacheItemWrapped = new ServerCacheItem() { ItemState = CacheItemState.None };
cacheItemWrapped.Hash = Hasher.GetHash(key);
cacheItemWrapped.Value = value;
Func<string, ServerCacheItem, ServerCacheItem> updateValueFactory = ((x, y) => (cacheItemWrapped));
_localCache.AddOrUpdate(key, cacheItemWrapped, updateValueFactory);
//has the item been moved to another node?
if (cacheItemWrapped.ItemState == CacheItemState.Moved)
{
Debug.Assert(cacheItemWrapped.RelocatedTo != null);
Node self = new Node() { EndPoint = TcpHelper.SelfIPAddress, NodeState = NodeState.Active };
//prepare the connection
string endPoint = string.Format("net.tcp://{0}:{1}/HoCCacheService", cacheItemWrapped.RelocatedTo.EndPoint.ToString(), cacheItemWrapped.RelocatedTo.ServicePort);
CacheServiceReference.CacheServiceClient nodeService = new CacheServiceReference.CacheServiceClient(new NetTcpBinding(SecurityMode.None), new EndpointAddress(endPoint));
//update to the target node.
nodeService.StoreCacheItem(key, value);
}
}
