public void Register(string[] productFamilies, IStockManager sm, PropagateToken token)
{
logger.Info("Registering families {0} for stock manager {1}", productFamilies, sm.GetUID());
lock (familiesMap)
{
foreach (string family in productFamilies)
{
if (!familiesMap.ContainsKey(family))
{
familiesMap.Add(family, new Dictionary <string, IStockManager>());
}
var dic = familiesMap[family];
if (!dic.ContainsKey(sm.GetUID()))
{
dic.Add(sm.GetUID(), sm);
}
else
{
logger.Warn("Stock manager {0} already registered, discarding", sm.GetUID());
}
}
}
SendServerAction(token);
}
public void SendServerAction(PropagateToken token)
{
if (token == null)
{
return; //Do not propagate
}
token.AddHop(this);
var servCopy = nextRingServer;
ThreadPool.QueueUserWorkItem((result) =>
{
try
{
logger.Debug("Propagating action {0} to server {1} on index.", token.Action.ToString(), servCopy.RingIndex);
servCopy.ServerProxy.ReceiveServerAction(token);
}
catch (System.Net.Sockets.SocketException ex)
{
logger.Debug(ex, "Exception on propagate to index {0}", servCopy.RingIndex);
logger.Error("Error propagating action {0} to server {1} on index, removing server.",
token.Action.ToString(), servCopy.RingIndex);
RemoveZoneServer(servCopy.UID);
if (servCopy.UID != nextRingServer.UID && nextRingServer.UID != this.serverUid)
{
SendServerAction(token);
}
}
});
}
public Server()
{
var key = System.Configuration.ConfigurationManager.AppSettings[ConfigurationFactory.SERVER_RING_INDEX_KEY];
ringIndex = Int32.Parse(key);
discoverToken = new PropagateToken(PropagateAction.AddServer, this);
myServer = new CachedServer(this);
}
public void Unregister(IStockManager sm, PropagateToken token)
{
logger.Info("Unregistering stock manager {0}", sm.GetUID());
lock (familiesMap)
{
foreach (var entry in familiesMap)
{
if (entry.Value.ContainsKey(sm.GetUID()))
{
entry.Value.Remove(sm.GetUID());
}
}
}
SendServerAction(token);
}
public void AddZoneServer(IServerExtended server, PropagateToken token)
{
logger.Info("Adding zone server with index {0}", server.RingIndex);
lock (knownServers)
{
checkRingData(server);
if (!knownServers.ContainsKey(server.GetUID()))
{
CachedServer cached = new CachedServer(server);
knownServers.Add(cached.UID, cached);
}
nextRingServer = getNextServerOnRing();
}
SendServerAction(token);
}
private bool checkDiscovery(PropagateToken token)
{
if (discoveryComplete)
{
return(false);
}
lock (knownServers)
{
if (!discoveryComplete && (discoverToken.GetUID() == token.GetUID()))
{
discoveryComplete = true;
logger.Info("Received discovery token. Server is on the ring.");
return(true);
}
}
return(false);
}
public void RemoveZoneServer(string serverUid, PropagateToken token)
{
CachedServer cachedServer;
if (!knownServers.TryGetValue(serverUid, out cachedServer))
{
logger.Info("Cannot remove unknown server with uid {0}", serverUid);
return;
}
logger.Info("Removing zone server with index {0}", cachedServer.RingIndex);
lock (knownServers)
{
knownServers.Remove(cachedServer.UID);
if (cachedServer.UID == nextRingServer.UID)
{
nextRingServer = getNextServerOnRing();
}
}
SendServerAction(token);
}
public void ReceiveServerAction(PropagateToken token)
{
if (checkDiscovery(token))
{
return;
}
logger.Debug("Token {0} received for action {1}", token.GetUID(), token.Action.ToString());
if (token.HasHopedOnObject(this))
{
logger.Debug("Token {0} already processed, discarding", token.GetUID());
return;
}
object[] pars;
switch (token.Action)
{
case PropagateAction.AddServer:
AddZoneServer((IServerExtended)token.Data, token);
break;
case PropagateAction.RemoveServer:
RemoveZoneServer((string)token.Data, token);
break;
case PropagateAction.Register:
pars = (object[])token.Data;
Register((string[])pars[0], (IStockManager)pars[1], token);
break;
case PropagateAction.Unregister:
Unregister((IStockManager)token.Data, token);
break;
}
}