/// <summary>
/// Serialize NewHashmap
/// </summary>
/// <param name="instance"></param>
/// <param name="serializationContext">Serialization context used to serialize the object</param>
public static void Serialize(NewHashmap instance, string serializationContext, bool updateClientMap)
{
Hashtable mapInfo = null;
if (instance != null)
{
mapInfo = new Hashtable();
mapInfo.Add("ViewId", instance._lastViewId);
mapInfo.Add("Members", instance._members);
mapInfo.Add("Map", instance._map);
mapInfo.Add("UpdateMap", updateClientMap);
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
formatter.Serialize(stream, mapInfo);
instance._buffer = stream.ToArray();
}
}
/// <summary>
/// Deserialize NewHashmap
/// </summary>
/// <param name="serializationContext"></param>
/// <returns></returns>
public static NewHashmap Deserialize(byte[] buffer, string serializationContext)
{
NewHashmap hashmap = null;
if (buffer != null && buffer.Length > 0)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream(buffer);
Hashtable map = formatter.Deserialize(stream) as Hashtable;
if (map != null)
{
hashmap = new NewHashmap();
hashmap._lastViewId = (long)map["ViewId"];
hashmap._members = (ArrayList)map["Members"];
hashmap._map = (Hashtable)map["Map"];
hashmap._updateMap = (map["UpdateMap"] != null) ? (bool)map["UpdateMap"] : false;
}
}
return(hashmap);
}
public HashmapChangedEvent(string cacheId, string clientId, NewHashmap newHashmap)
{
this._cacheId = cacheId;
this._clientId = clientId;
this._newmap = newHashmap;
}
/// <summary>
/// Deserialize NewHashmap
/// </summary>
/// <param name="serializationContext"></param>
/// <returns></returns>
public static NewHashmap Deserialize(byte[] buffer, string serializationContext)
{
NewHashmap hashmap = null;
if (buffer != null && buffer.Length > 0)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream(buffer);
Hashtable map = formatter.Deserialize(stream) as Hashtable;
if (map != null)
{
hashmap = new NewHashmap();
hashmap._lastViewId = (long)map["ViewId"];
hashmap._members = (ArrayList)map["Members"];
hashmap._map = (Hashtable)map["Map"];
hashmap._updateMap = (map["UpdateMap"] != null) ? (bool)map["UpdateMap"] : false;
}
}
return hashmap;
}
/// <summary>
/// Serialize NewHashmap
/// </summary>
/// <param name="instance"></param>
/// <param name="serializationContext">Serialization context used to serialize the object</param>
public static void Serialize(NewHashmap instance, string serializationContext, bool updateClientMap)
{
Hashtable mapInfo = null;
if (instance != null)
{
mapInfo = new Hashtable();
mapInfo.Add("ViewId", instance._lastViewId);
mapInfo.Add("Members", instance._members);
mapInfo.Add("Map", instance._map);
mapInfo.Add("UpdateMap", updateClientMap);
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
formatter.Serialize(stream, mapInfo);
instance._buffer = stream.ToArray();
}
}
/// <summary>
/// Fire when hasmap changes when
/// - new node joins
/// - node leaves
/// - manual/automatic load balance
/// </summary>
/// <param name="newHashmap">new hashmap</param>
void ICacheEventsListener.OnHashmapChanged(NewHashmap newHashmap, bool updateClientMap)
{
}
void ICacheEventsListener.OnHashmapChanged(Alachisoft.NCache.Common.DataStructures.NewHashmap newHashmap, bool updateClientMap)
{
throw new Exception("The method or operation is not implemented.");
}
private void HashmapChanged(NewHashmap newmap, EventContext eventContext)
{
lock (ConnectionManager.CallbackQueue)
{
if (_client != null)
{
ConnectionManager.CallbackQueue.Enqueue(new HashmapChangedEvent(_cacheId, _client.ClientID, newmap));
Monitor.Pulse(ConnectionManager.CallbackQueue);
}
}
}
public AsyncLocalNotifyHashmapCallback(ICacheEventsListener listener, long lastViewid, Hashtable newmap, ArrayList members, bool updateClientMap)
{
this._listener = listener;
this._hashMap = new NewHashmap(lastViewid, newmap, members);
this._updateClientMap = updateClientMap;
}
/// <summary>
/// New hashmap recieved. Depending on new and old hashmap, some connections are
/// disposed and some new connections are formed(not always as in some cases only buckets have
/// transfered between servers). This method should be called asynchronously so the recieve thread
/// will be free to recieve other command responces.
/// </summary>
/// <param name="newHashmap">new hashmap returned from primary server</param>
private void NewHashmapRecieved(NewHashmap newHashmap)
{
if (newHashmap == null)
{
_logger.NCacheLog.CriticalInfo("Broker.NewHashmapReceived", "Hashmap is null... returning");
return;
}
lock (_hashmapUpdateMutex)
{
try
{
if (_logger.IsDetailedLogsEnabled)
{
_logger.NCacheLog.Debug("Broker.NewHashmapReceived", "Hashmap " + newHashmap.ToString());
}
long oldId = _pool != null ? _pool.LastViewId : -2;
if (newHashmap.LastViewId == this._pool.LastViewId)
{
_logger.NCacheLog.CriticalInfo("Broker.NewHashmapReceived",
"Hashmap is same as current pool. Pool " + this._pool.ToString() + " New Hashmap " +
newHashmap.ToString() + " ... returning");
return;
}
if (_clientConfig.IPMappingConfigured)
{
this.GetServerMapping(null, false);
}
for (int i = 0; i < newHashmap.Members.Count; i++)
{
string ip = (string) newHashmap.Members[i];
int serverPort = this._port;
if (_clientConfig.IPMappingConfigured)
{
RemoteServer server = _clientConfig.GetMappedServer(ip, serverPort);
ip = server.Name;
serverPort = server.Port;
newHashmap.Members[i] = ip + ":" + serverPort.ToString();
}
Address addr = new Address(ip, serverPort);
if (!this._pool.Contains(addr))
{
try
{
IPAddress address = IPAddress.Parse(ip);
Connection connection = new Connection(this._commandReieved, this._serverLost,
this._logger, _perfStatsColl, _responseIntegrator, _clientConfig.BindIP);
Exception exception = null;
if (ConnectRemoteServer(connection, address, serverPort, false, false, false, ref exception))
{
this._pool.Add(addr, connection);
this._clientConfig.AddServer(new RemoteServer(address, serverPort));
if (_logger.IsDetailedLogsEnabled)
_logger.NCacheLog.Debug("Broker.NewHashmapRecieved",
"Connection made to " + ip + ", and added to pool");
}
else
{
if (exception != null && _logger.IsErrorLogsEnabled)
{
_logger.NCacheLog.Error("Broker.NewHashmapRecieved",
"Could not connect to " + ip + ". " + exception.ToString());
}
}
}
catch (Exception exc)
{
if (_logger.IsErrorLogsEnabled)
_logger.NCacheLog.Error("Broker.NewHashmapRecieved", exc.ToString());
}
}
else
{
Connection connection = this._pool[addr];
if (connection != null && !connection.IsConnected)
{
if (_logger.IsDetailedLogsEnabled)
{
_logger.NCacheLog.Debug("Broker.NewHashmapRecieved",
"Not connected to " + ip + " in the pool");
}
try
{
Exception exception = null;
TryConnecting(connection, ref exception);
}
catch (Exception exc)
{
if (_logger.IsErrorLogsEnabled)
_logger.NCacheLog.Error("Broker.NewHashmapRecieved", exc.ToString());
}
}
else
{
if (_logger.IsDetailedLogsEnabled)
{
_logger.NCacheLog.Debug("Broker.NewHashmapRecieved",
"Already connected to " + ip + " in the pool");
}
}
}
}
if (this._importHashmap)
{
//List of Connection ip's which as per new hashmap are no more valid
List<Address> invalidIPConnection = new List<Address>();
foreach (Address ipAddress in this._pool.Servers)
{
if (_clientConfig.IPMappingConfigured)
{
if (
!newHashmap.Members.Contains(ipAddress.IpAddress.ToString() + ":" +
ipAddress.Port.ToString()))
{
invalidIPConnection.Add(ipAddress);
}
}
else
{
if (!newHashmap.Members.Contains(ipAddress.IpAddress.ToString()))
{
invalidIPConnection.Add(ipAddress);
}
}
}
foreach (Address ip in invalidIPConnection)
{
this._pool[ip].Disconnect();
this._pool.Remove(ip);
if (_logger.IsDetailedLogsEnabled)
{
_logger.NCacheLog.Debug("Broker.NewHashmapRecieved",
"Disconnected from " + ip + ", and removed from pool");
}
}
}
RemoteServer srvr = new RemoteServer();
string add = null;
for (int key = 0; key < newHashmap.Map.Count; key++)
{
add = (string) newHashmap.Map[key];
srvr = _clientConfig.GetMappedServer(add, this._port);
newHashmap.Map[key] = new Address(srvr.Name, srvr.Port);
}
this._pool.SetHashmap(newHashmap);
if (_logger.IsDetailedLogsEnabled)
{
_logger.NCacheLog.Debug("Broker.NewHashmapReceived",
"Hashmap applied " + newHashmap.ToString() + " Pool " + this._pool.ToString());
}
}
catch (Exception exc)
{
if (_logger.IsErrorLogsEnabled) _logger.NCacheLog.Error("Broker.NewHashmapRecieved", exc.Message);
}
}
}
/// <summary>
/// New hashmap recieved. Depending on new and old hashmap, some connections are
/// disposed and some new connections are formed(not always as in some cases only buckets have
/// transfered between servers). This method should be called asynchronously so the recieve thread
/// will be free to recieve other command responces.
/// </summary>
/// <param name="newHashmap">new hashmap returned from primary server</param>
/// <param name="bucketSize">bucket size</param>
private void NewHashmapRecieved(NewHashmap newHashmap, int bucketSize)
{
if (newHashmap == null) return;
this._pool.BucketSize = bucketSize;
NewHashmapRecieved(newHashmap);
}
/// <summary>
/// Fire when hasmap changes when
/// - new node joins
/// - node leaves
/// - manual/automatic load balance
/// </summary>
/// <param name="newHashmap">new hashmap</param>
void ICacheEventsListener.OnHashmapChanged(NewHashmap newHashmap, bool updateClientMap)
{
if (this._hashmapChanged == null) return;
Delegate[] dlgList = this._hashmapChanged.GetInvocationList();
NewHashmap.Serialize(newHashmap, this._context.SerializationContext, updateClientMap);
foreach (HashmapChangedCallback subscriber in dlgList)
{
try
{
subscriber.BeginInvoke(newHashmap, null, new AsyncCallback(HashmapChangedAsyncCallbackHandler), subscriber);
}
catch (System.Net.Sockets.SocketException ex)
{
_context.NCacheLog.Error("Cache.OnHashmapChanged", ex.ToString());
this._hashmapChanged -= subscriber;
}
catch (Exception ex)
{
_context.NCacheLog.Error("Cache.OnHashmapChanged", ex.ToString());
}
}
}
/// <summary>
/// Set new hashmap to this new hashmap
/// </summary>
/// <param name="hashMap">new hashmap</param>
public void SetHashmap(NewHashmap hashMap)
{
this._lastViewId = hashMap.LastViewId;
lock (this._hashMap.SyncRoot) this._hashMap = (!hashMap.Map.IsSynchronized) ? Hashtable.Synchronized(hashMap.Map) : hashMap.Map;
}
