private HeartBeatData GetHeartBeatData(byte[] heartBeatDataAsBytes)
{
if (heartBeatDataAsBytes.Length == 0)
{
throw new HeartBeatDataIsEmptyException();
}
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream memStream = new MemoryStream(heartBeatDataAsBytes);
HeartBeatData heartBeatdata = (HeartBeatData)formatter.Deserialize(memStream);
return(heartBeatdata);
}
void MessageReceivedCallback(IAsyncResult result)
{
if (OnHeartBeatReceived != null)
{
IPEndPoint remoteEndPoint = new IPEndPoint(IPAddress.Broadcast, _protocolPort);
SocketError socketErrorCode;
_udpClient.EndReceive(result, out socketErrorCode);
HeartBeatData heartBeatData = GetHeartBeatData(recBuffer);
OnHeartBeatReceived(heartBeatData);
}
Listen();
}
private void HeartBeatTracker(HeartBeatData heartBeatData)
{
IPAddress nodeIPAddress = new IPAddress(heartBeatData.IPAddress);
Node node = _activeNodes.Find(x => x.EndPoint.ToString() == nodeIPAddress.ToString());
NodeUpdateAction updateAction;
if (node != null)
{
//update the last heard time, node state
node.HeartBeatLastHeardAt = DateTime.Now;
node.NodeState = heartBeatData.NodeState;
node.EndPoint = nodeIPAddress;
node.ServicePort = heartBeatData.ServicePort;
updateAction = NodeUpdateAction.Updated;
}
else
{
node = new Node()
{
EndPoint = nodeIPAddress,
ServicePort = heartBeatData.ServicePort,
HeartBeatLastHeardAt = DateTime.Now,
NodeState = heartBeatData.NodeState
};
lock (_activeNodes)
{
_activeNodes.Add(node); //add the new node which appears to have just come online.
}
updateAction = NodeUpdateAction.Added;
}
if (OnNodeListUpdated != null)
{
OnNodeListUpdated(node, updateAction);
}
}
private byte[] GetSerializedHeartBeatData()
{
HeartBeatData heartBeatData = new HeartBeatData()
{
IPAddress = TcpHelper.SelfIPAddress.GetAddressBytes(),
ServicePort = _servicePort,
NodeState = this.NodeState //whatever beat kind is currently mentioned
};
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream memStream = new MemoryStream();
formatter.Serialize(memStream, heartBeatData);
return memStream.ToArray();
}
private void HeartBeatTracker(HeartBeatData heartBeatData)
{
IPAddress nodeIPAddress = new IPAddress(heartBeatData.IPAddress);
Node node = _activeNodes.Find(x => x.EndPoint.ToString() == nodeIPAddress.ToString());
NodeUpdateAction updateAction;
if (node != null)
{
//update the last heard time, node state
node.HeartBeatLastHeardAt = DateTime.Now;
node.NodeState = heartBeatData.NodeState;
node.EndPoint = nodeIPAddress;
node.ServicePort = heartBeatData.ServicePort;
updateAction = NodeUpdateAction.Updated;
}
else
{
node = new Node()
{
EndPoint = nodeIPAddress,
ServicePort = heartBeatData.ServicePort,
HeartBeatLastHeardAt = DateTime.Now,
NodeState = heartBeatData.NodeState
};
lock (_activeNodes)
{
_activeNodes.Add(node); //add the new node which appears to have just come online.
}
updateAction = NodeUpdateAction.Added;
}
if (OnNodeListUpdated != null)
OnNodeListUpdated(node, updateAction);
}