public override bool Equals(object obj)
{
EachServer a = obj as EachServer;
if (a == null)
{
return(false);
}
return(id == a.ID);
}
//=========================================================================================
// MAIN
//=========================================================================================
public ServerProgram(Uri uri, int id, List <EachServer> allServers, EachServer rootServer)
{
MyAddress = uri;
MyID = id;
AllServers = allServers;
RootServer = rootServer;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_START;
NetworkStatusLoop();
}
//===================================================================
// MAIN VIEW UPDATE PROGRAM
//===================================================================
private static void View_Update_Program()
{
switch (STATE_MACHINE_NETWORK)
{
case STATE_MACHINE_NETWORK_START:
if (RootServer != null && MyID != RootServer.id)
{
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), RootServer.uid.ToString() + "MyRemoteObjectName");
if (ss != null)
{
serversAlive.Add(RootServer);
first_request = true;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_REQUEST_VIEW;
}
}
else
{
Ping_All_Servers();
CurrentViewID = new View
(
nodeid: MyID,
sequence: 0,
servers_in_View: serversAlive
);
Im_Root = true;
RootServer = new EachServer(MyAddress, MyID);
Console.WriteLine("IM ROOT");
}
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_RESTART;
break;
case STATE_MACHINE_NETWORK_REQUEST_VIEW:
if (first_request == true && Im_Root == false)
{
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), RootServer.uid.ToString() + "MyRemoteObjectName");
ss.RX_ReplicaCommand(new CommandReplicas("REQUEST_VIEW_AND_IMAGE", null, null, MyAddress, MyID));
first_request = false;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_WAIT;
}
else
{
try
{
Console.WriteLine(MyID + "ooooooooooooooooooooooooooooo" + CurrentViewID.Servers_in_View.Count);
foreach (EachServer server_alive in CurrentViewID.Servers_in_View)
{
//if (server_alive.id != MyID)
//{
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), server_alive.uid.ToString() + "MyRemoteObjectName");
ss.RX_ReplicaCommand(new CommandReplicas("REQUEST_VIEW", null, null, MyAddress, MyID));
//}
}
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_WAIT;
}
catch
{
if (Im_Root == true)
{
Ping_All_Servers();
foreach (EachServer server_alive in serversAlive)
{
if (server_alive.id != MyID)
{
view_sequence++;
View tmp = new View(MyID, view_sequence, serversAlive);
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), server_alive.uid.ToString() + "MyRemoteObjectName");
ss.RX_ReplicaCommand(new CommandReplicas("UPDATE_VIEW", tmp, null, MyAddress, MyID));
}
}
}
else
{
}
}
}
//Console.WriteLine("adeus");
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_RESTART2;
break;
case STATE_MACHINE_NETWORK_CHECK_VIEW:
foreach (View proposed_view in Proposed_Views)
{
if (!GetCurrentViewID().Equals(proposed_view))
{
getFromRoot = true;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_CHANGE_VIEW;
break;
}
}
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_REQUEST_VIEW;
break;
case STATE_MACHINE_NETWORK_CHANGE_VIEW:
if (getFromRoot == true && root_view != null)
{
SetCurrentViewID(root_view);
root_view = null;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_RESTART;
}
else
{
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_UPDATE_ROOT;
}
break;
case STATE_MACHINE_NETWORK_UPDATE_VIEW:
Console.WriteLine("Entrei no update view");
Ping_All_Servers();
view_sequence++;
View new_view = new View(MyID, view_sequence, serversAlive);
root_view = new_view;
SetCurrentViewID(new_view);
Console.WriteLine("UPDATE VIEW______=> " + new_view.ToString());
foreach (EachServer server_alive in serversAlive)
{
if (server_alive.id != MyID)
{
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), server_alive.uid.ToString() + "MyRemoteObjectName");
ss.RX_ReplicaCommand(new CommandReplicas("UPDATE_VIEW", new_view, null, MyAddress, MyID));
}
}
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_WAIT;
break;
case STATE_MACHINE_NETWORK_UPDATE_ROOT:
if (serversAlive.Count == 0 || ((Server.My_Identification.ID - 1) < serversAlive[0].id)) //check if anyone is ROOT
{
//IM ROOT
RootServer = new EachServer(MyAddress, MyID);
Ping_All_Servers();
View new_view2 = new View(MyID, view_sequence++, serversAlive);
root_view = new_view2;
SetCurrentViewID(new_view2);
Console.WriteLine("IM THE NEW ROOT-----VIEW => " + new_view2.ToString());
foreach (EachServer server_alive in serversAlive)
{
if (server_alive.id != MyID)
{
ss = (IServerServices)Activator.GetObject(typeof(IServerServices), server_alive.uid.ToString() + "MyRemoteObjectName");
ss.RX_ReplicaCommand(new CommandReplicas("UPDATE_VIEW", new_view2, null, MyAddress, MyID));
}
}
}
//else
//{
// //Console.WriteLine("MY_IDENTIFICATION: {0}, {1}", Server.My_Identification.ID, (int)serversAlive[0]);
// if ()
// {
// //IM ROOT
// RootServer = new EachServer(MyAddress, MyID);
// View new_view = new View(MyID, view_sequence++);
// root_view = new_view;
// SetCurrentViewID(new_view);
// Console.WriteLine("IM THE NEW ROOT-----VIEW => " + new_view.ToString());
// foreach (EachServer server_alive in serversAlive)
// {
// if (server_alive.id != MyID)
// ss.RX_ReplicaCommand(new CommandReplicas("UPDATE_VIEW", new_view, null, MyAddress, MyID));
// }
// }
//}
break;
case STATE_MACHINE_NETWORK_WAIT:
while (wait == true)
{
Thread.Sleep(50);
}
wait = true;
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_RESTART;
break;
case STATE_MACHINE_NETWORK_RESTART:
Thread.Sleep(3000);
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_REQUEST_VIEW;
break;
case STATE_MACHINE_NETWORK_RESTART2:
Thread.Sleep(3000);
break;
case STATE_MACHINE_NETWORK_RESTART3:
Thread.Sleep(5000);
STATE_MACHINE_NETWORK = STATE_MACHINE_NETWORK_UPDATE_ROOT;
break;
}
}
static void Main(string[] args)
{
int id;
Uri uri;
int min_delay;
int max_delay;
if (args.Length != 4)
{
Console.WriteLine("Insuficient arguments: SERVER_ID URL MIN_DELAY MAX_DELAY");
args = Console.ReadLine().Split(' ');
}
id = Int32.Parse(args[0].Substring(1)); //catch number from the 1 position
try
{
uri = new Uri(args[1]);
}
catch (UriFormatException e)
{
Console.WriteLine("Invalid URL: {0}", args[1]);
Console.ReadLine();
return;
}
min_delay = Int32.Parse(args[2]);
max_delay = Int32.Parse(args[3]);
Random rnd = new Random();
delay_messages = rnd.Next(min_delay, max_delay + 1);
//open file with database of all Servers in the system
AllServers = new List <EachServer>();
My_Identification = new EachServer(uri, id);
string[] lines = File.ReadAllLines(path);
foreach (string line in lines)
{
string[] words = line.Split(' ');
int tmp_id = Int32.Parse(words[0]);
Uri uri_tmp;
try
{
uri_tmp = new Uri(words[1]);
AllServers.Add(new EachServer(uri_tmp, tmp_id));
if (tmp_id == 1)
{
RootServer = new EachServer(uri_tmp, tmp_id);
Console.WriteLine("ENTRANCE POINT/ROOT SERVER => " + RootServer.uid.ToString());
}
}
catch (UriFormatException e)
{
Console.WriteLine("Invalid URL: {0}", words[1]);
//Console.ReadLine();
return;
}
}
channel = new TcpChannel(uri.Port);
ChannelServices.RegisterChannel(channel, false);
new Thread(() => Server_thread()).Start();
new Thread(() => Client_thread(uri, id)).Start();
new Thread(() => ServerService.CheckCommandsInQueue_thread()).Start();
new Thread(() => ServerService.CheckCommandsInQueue_thread_Replica()).Start();
System.Console.WriteLine("I'm server: " + args[1]);
//teste tuple space
object[] tupleOBJ = new object[1];
tupleOBJ[0] = new StringEmulator("a");
ServerService.ts.Add(new MyTuple(tupleOBJ));
System.Console.ReadLine();
}
