public DataServerStruct(Address addr, int weight, SystemInfo info)
{
this.addr = addr;
this.weight = weight;
this.info = info;
this.regions = new HashSet<Region>();
}
public void AddMasterAddr(Address addr)
{
masterAddrs.Add(addr);
}
public void addRegion(Region region, Address addr)
{
map.Add(region, addr);
regions.Add(region);
sorted = false;
}
public KVClient(ClientOption option)
{
this.option = option;
this.connections = new Dictionary<Address, Socket>();
activeMaster = null;
}
protected Socket getMasterConnection()
{
Socket socket = null;
if (activeMaster != null)
{
try
{
socket = getConnection(activeMaster);
}
catch (Exception e)
{
Console.Error.WriteLine("Fail to connect to master " + activeMaster);
}
}
if (socket == null)
{
ICollection<Address> masters = option.MasterAddrs;
foreach (Address master in masters)
{
try
{
socket = getConnection(master);
if (socket != null)
{
activeMaster = master;
return socket;
}
}
catch (Exception e)
{
Console.Error.WriteLine("Fail to connect to master " + activeMaster + " try next");
}
}
}
if (socket != null)
{
return socket;
}
else
{
throw new KVException(
"No active master found in cluster, please check the configuration.");
}
}
protected Socket getConnection(Address addr)
{
Socket socket = null;
connections.TryGetValue(addr, out socket);
if (socket == null || !socket.Connected)
{
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(new IPEndPoint(IPAddress.Parse(addr.Ip), addr.Port));
connections.Add(addr, socket);
}
return socket;
}