public bool InitialiseBalancer(string address, string balancerIP)
{
balancerIP += ":50050";
Channel channel = new Channel(balancerIP, ChannelCredentials.Insecure);
var client = new Interact.InteractClient(channel);
try
{
var confirmation = client.UpdateUsers(new ServerStatus {
Address = address, Users = disconnected_users, InitialConnection = "True"
});
if (confirmation.Received == "true")
{
Console.WriteLine("Successfully initialised balancer.");
return(true);
}
else
{
Console.WriteLine("Could not intialise the balancer.");
return(false);
}
}
catch (Exception e)
{
Exception baseException = e.GetBaseException();
Console.WriteLine("Could not connect to loadbalancer...\nThe exception encountered is below: ");
Console.WriteLine(baseException.ToString());
return(false);
}
}
public void UpdateBalancer(string address, string balancerIP)
{
balancerIP += ":50050";
Channel channel = new Channel(balancerIP, ChannelCredentials.Insecure);
var client = new Interact.InteractClient(channel);
while (true)
{
try
{
var confirmation = client.UpdateUsers(new ServerStatus {
Address = address, Users = disconnected_users
});
if (confirmation.Received == "true")
{
Console.WriteLine("Successful User Update");
}
else
{
Console.WriteLine("User update failed");
}
}
catch (Exception e)
{
Exception baseException = e.GetBaseException();
Console.WriteLine("Could not connect to loadbalancer...\nServer restart may be required\nThe exception encountered is below: ");
Console.WriteLine(baseException.ToString());
}
Thread.Sleep(30000);
}
}
public static bool Login(string username, Interact.InteractClient clientLoadBalancer)
{
try
{
var reply = clientLoadBalancer.Login(new LoginRequest {
Username = username
});
if (reply.Result == "true")
{
givenIp = reply.Address;
Console.WriteLine(givenIp);
Console.WriteLine("Login successful");
return(true);
}
else
{
Console.WriteLine("Login unsuccessful, please try again.");
return(false);
}
}
catch (Exception e)
{
//Causes build warning as the Exception e is not used, this is because a full stack trace would be
//excessive for a simple user and the error message below is shown instead
Console.WriteLine("Could not connect to the server.\nYou may need to restart the client.\nPlease check the IP address you are connecting to.");
return(false);
}
}
public static void SendCommand(Interact.InteractClient clientServer)
{
string command = "";
while (command != "exit")
{
Console.Write("Command: ");
command = Console.ReadLine();
if (command == "exit")
{
ExitCheck: // Start of goto loop
Console.Write("Are you sure you want to quit? Y/N: ");
String yesNo = Console.ReadLine();
if (yesNo.ToLower() == "y") // command stays as exit and is sent in the finalreply interaction
{
break;
}
else if (yesNo.ToLower() == "n")
{
command = "";
continue;
}
else //if the response is neither yes or no
{
goto ExitCheck; // End of goto loop
}
}
try
{
var reply = clientServer.Interaction(new Request {
User = username, Command = command
});
Console.WriteLine(reply.Message);
}
catch (Exception e)
{
//Causes build warning as the Exception e is not used, this is because a full stack trace would be
//excessive for a simple user and the error message below is shown instead
Console.WriteLine("The connection could not reach the server.\nThe server may have crashed.");
}
}
}
public static void Main(string[] args)
{
Channel channelLoadBalancer = Connect();
var clientLoadBalancer = new Interact.InteractClient(channelLoadBalancer);
Boolean loggedIn = false;
while (!loggedIn)
{
Console.Write("Username: ");
username = Console.ReadLine();
loggedIn = Login(username, clientLoadBalancer);
}
Channel channelServer = new Channel(givenIp, ChannelCredentials.Insecure);
var clientServer = new Interact.InteractClient(channelServer);
SendCommand(clientServer);
channelServer.ShutdownAsync().Wait();
}
