Merge pull request #92 from rubenpirreram/server-resilance

server-resilance

src/main/java/it/polimi/ingsw/gc14/Network/TCP/Server/TCPServer.java

@@ -88,57 +88,61 @@ public class TCPServer {
                     continue;
                 }
 
-
+                if (playerList.isEmpty()) {
-                    if (playerList.isEmpty()) {
+                    if(controller.getModel() == null){
                         Game model = new Game(eventAddPlayer.getProposedNPlayer());
                         controller.setModel(model);
                         playerList.setLimit(eventAddPlayer.getProposedNPlayer());
                     }
+                }
 
-                    String username = eventAddPlayer.getUsername();
+                String username = eventAddPlayer.getUsername();
 
-                    if (controller.addPlayer(username)) {
+                if (controller.addPlayer(username)) {
-                        // nuovo giocatore
+                    // nuovo giocatore
-                        playerList.put(username, true);
+                    playerList.put(username, true);
-                        System.out.println("Accepted player: " + username);
+                    System.out.println("Accepted player: " + username);
-                        ClientHandler handler = new ClientHandler(
+                    ClientHandler handler = new ClientHandler(
-                                username, clientSocket, clientSend, clientReceive,
+                            username, clientSocket, clientSend, clientReceive,
-                                clientHandlers,playerList, actionQueue
+                            clientHandlers,playerList, actionQueue
-                        );
+                    );
-                        clientSocket.getOutputStream().write(1);
+                    clientSocket.getOutputStream().write(1);
-                        pendingHeartbeat.put(username, handler);
+                    pendingHeartbeat.put(username, handler);
-                        Thread thread = new Thread(handler);
+                    Thread thread = new Thread(handler);
-                        thread.start();
+                    thread.start();
-                        clientHandlers.add(handler);
+                    clientHandlers.add(handler);
-                        connectedPlayers++;
+                    connectedPlayers++;
-                        // metti in attesa del socket heartbeat
+                    // metti in attesa del socket heartbeat
 
 
-                    } else if (playerList.containsKey(username) && !playerList.get(username)) {
+                }
-                        // riconnessione
+                else if(playerList.containsKey(username) && !playerList.get(username)){
-                        playerList.put(username, true);
+                    // riconnessione
-                        System.out.println("Reconnected player: " + username);
+                    playerList.put(username, true);
+                    System.out.println("Reconnected player: " + username);
 
-                        ClientHandler handler = new ClientHandler(
+                    ClientHandler handler = new ClientHandler(
-                                username, clientSocket, clientSend, clientReceive,
+                            username, clientSocket, clientSend, clientReceive,
-                                clientHandlers, playerList, actionQueue
+                            clientHandlers, playerList, actionQueue
-                        );
+                    );
-                        clientSocket.getOutputStream().write(1);
+                    clientSocket.getOutputStream().write(1);
-                        pendingHeartbeat.put(username, handler);
+                    pendingHeartbeat.put(username, handler);
-                        handler.notifyModel(controller.getModel());
+                    handler.notifyModel(controller.getModel());
-                        Thread thread = new Thread(handler);
+                    Thread thread = new Thread(handler);
-                        thread.start();
+                    thread.start();
-                        clientHandlers.add(handler);
+                    clientHandlers.add(handler);
-                        connectedPlayers++;
+                    connectedPlayers++;
-                        actionQueue.add(new ReconnectPlayer(username));
+                    actionQueue.add(new ReconnectPlayer(username));
-                    } else {
+                }
-                        clientSocket.getOutputStream().write(-1);
+                else{
-                        clientSocket.close();
+                    clientSocket.getOutputStream().write(-1);
-                        System.out.println("Player could not be added. Connection terminated.");
+                    clientSocket.close();
-                    }
+                    System.out.println("Player could not be added. Connection terminated.");
+                }
 
 
-            } catch (IOException | ClassNotFoundException e) {
+            }
+            catch(IOException | ClassNotFoundException e){
                 e.printStackTrace();
             }
         }

src/main/java/it/polimi/ingsw/gc14/ServerLauncher.java

@@ -3,6 +3,7 @@ package it.polimi.ingsw.gc14;
 
 import it.polimi.ingsw.gc14.Controller.GameController;
 import it.polimi.ingsw.gc14.Model.Game;
+import it.polimi.ingsw.gc14.Model.GamePackage.GameStages;
 import it.polimi.ingsw.gc14.Model.Player;
 import it.polimi.ingsw.gc14.Network.ClientPlayer;
 import it.polimi.ingsw.gc14.Network.NetworkEvent;
@@ -11,6 +12,10 @@ import it.polimi.ingsw.gc14.Network.RMI.Server.RMIServer;
 import it.polimi.ingsw.gc14.Network.TCP.Server.TCPServer;
 import it.polimi.ingsw.gc14.View.TUI.TUI;
 
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.rmi.RemoteException;
 import java.util.*;
 import java.util.concurrent.BlockingQueue;
@@ -74,6 +79,7 @@ public class ServerLauncher {
         this.actionQueue = actionQueue;
         this.serverRMI = serverRMI;
         this.gameController = gameController;
+        this.gameController.setModel(loadSave());
         this.serverTCP = serverTCP;
     }
 
@@ -87,11 +93,20 @@ public class ServerLauncher {
      * @throws RemoteException if an RMI error occurs
      */
     public boolean doFirstEvent() throws InterruptedException, RemoteException {
-            synchronized (gameController) {
+            synchronized(gameController){
                 NetworkEvent event = actionQueue.take();
                 event.setIsError(!event.apply(gameController));
                 serverRMI.notifyAll(event);
                 serverTCP.notifyAll(event);
+
+                if(!event.getIsError()){
+                    if(this.gameController.getModel().getCurrentState().getGameStage() == GameStages.ENDED){
+                        this.deleteSave();
+                    }
+                    else if(!this.gameSave() ){
+                        System.out.println("\n!!! Save failed !!!\n");
+                    }
+                }
                 if (!playerList.get(gameController.getModel().getCurrentState().getCurrentPlayer().getUserName())) {
                     actionQueue.offer(new SkipPlayerDisconnected(gameController.getModel().getCurrentState().getCurrentPlayer().getUserName()));
                 }
@@ -114,6 +129,7 @@ public class ServerLauncher {
         BlockingQueue<NetworkEvent> actionQueue = new LinkedBlockingQueue<>();
         GameController gameController = new GameController();
         String IP;
+
         try {
             IP=chooseNetworkInterface(new Scanner(System.in));
         } catch (Exception e) {
@@ -158,17 +174,20 @@ public class ServerLauncher {
 
         // Game execution
         while (true) {
-            try {
+            try{
                 this.doFirstEvent();
                 this.view.fullRender();
-            } catch (InterruptedException e) {
+            }
+            catch(InterruptedException e){
                 Thread.currentThread().interrupt();
                 break;
-            } catch (RemoteException e) {
+            }
+            catch(RemoteException e){
                 throw new RuntimeException(e);
             }
         }
     }
+
     public static String chooseNetworkInterface(Scanner scanner) throws Exception {
         List<String> ips = new ArrayList<>();
 
@@ -201,4 +220,67 @@ public class ServerLauncher {
         int choice = Integer.parseInt(scanner.nextLine().trim());
         return ips.get(choice);
     }
+
+    private boolean gameSave(){
+        try{
+            Path jarPath = Paths.get(getClass().getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();
+            Path filePath = jarPath.resolve("GameSaves/save.dat");
+            Files.createDirectories(filePath.getParent());
+
+            try(ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(filePath.toFile()))){
+                oos.writeObject(this.gameController.getModel());
+                System.out.println("Game saved to: " + filePath.toAbsolutePath());
+                return true;
+            }
+            catch(IOException e){
+                e.printStackTrace();
+                return false;
+            }
+        }
+        catch(IOException e){
+            System.out.println("Couldn't create directory.");
+            e.printStackTrace();
+            return false;
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private Game loadSave(){
+        try {
+            Path jarPath = Paths.get(getClass().getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();
+            Path filePath = jarPath.resolve("GameSaves/save.dat");
+            try(ObjectInputStream ois = new ObjectInputStream(new FileInputStream(filePath.toFile()))){
+                return (Game)(ois.readObject());
+            }
+            catch(FileNotFoundException e){
+                return null;
+            }
+            catch(IOException e){
+                e.printStackTrace();
+                return null;
+            }
+            catch(ClassNotFoundException e){
+                throw new RuntimeException(e);
+            }
+        }
+        catch(URISyntaxException e){
+            throw new RuntimeException(e);
+        }
+    }
+
+    private boolean deleteSave(){
+        try{
+            Path jarPath = Paths.get(getClass().getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();
+            Path filePath = jarPath.resolve("GameSaves/save.dat");
+            Files.delete(filePath);
+            return true;
+        }
+        catch(URISyntaxException e){
+            return false;
+        }
+        catch (IOException e){
+            return false;
+        }
+    }
 }