feat: subdivide clienthandler into messageprocessor

app/src/main/java/clientserver/server/ClientHandler.java

@@ -9,24 +9,16 @@ public class ClientHandler implements Runnable {
     private final DatagramSocket clientHandlerSocket;
     private final Client client;
     private boolean running = true;
+    private final MessageProcessor messageProcessor;
 
     public ClientHandler(DatagramSocket socket, Client client) {
         this.clientHandlerSocket = socket;
         this.client = client;
-    }
-
-    private void sendConnectedClients(String message) {
-        if (message.equals("/list")) {
-            Server.sendMessage(clientHandlerSocket, Server.getPseudos(), client.getAddress(), client.getPort());
-        }
-    }
-
-    private void handleDeconnexion(String message) {
-        if (message.equals("DISCONNECT")) {
-            System.out.println("Client deconnection : " + prettyPrint(client));
-            Server.removeClientHandler(client.getPseudo());
-            stop();
-        }
+        this.messageProcessor = new MessageProcessor(
+            client,
+            clientHandlerSocket,
+            this
+        );
     }
 
     public void stop() {
@@ -36,43 +28,39 @@ public class ClientHandler implements Runnable {
         }
     }
 
-    public String prettyPrint(Client client) {
+    public static String prettyPrint(Client client) {
         StringBuilder str = new StringBuilder();
-        str.append(client.getPseudo() +
-                " (" +
-                client.getAddress() +
-                ":" +
-                client.getPort() +
-                ")");
+        str.append(
+            client.getPseudo() +
+            " (" +
+            client.getAddress() +
+            ":" +
+            client.getPort() +
+            ")"
+        );
         return str.toString();
     }
 
     @Override
     public void run() {
-        System.out.println(
-                "Started handler for client " +
-                        prettyPrint(client));
+        System.out.println("Started handler for client " + prettyPrint(client));
 
         while (running && !clientHandlerSocket.isClosed()) {
             DatagramPacket packet = Server.receivedPacket(clientHandlerSocket);
-            if (packet == null)
-                continue;
+            if (packet == null) continue;
 
             String message = new String(
-                    packet.getData(),
-                    0,
-                    packet.getLength());
-            System.out.println(
-                    prettyPrint(client) + " : " +
-                            message);
+                packet.getData(),
+                0,
+                packet.getLength()
+            );
+            System.out.println(prettyPrint(client) + " : " + message);
 
-            // Possibilies
-            sendConnectedClients(message); // /list command
-            handleDeconnexion(message); // exit command or DISCONNECT
+            messageProcessor.processMessage(message);
         }
 
         System.out.println(
-                "Client handler terminated for " +
-                        prettyPrint(client));
+            "Client handler terminated for " + prettyPrint(client)
+        );
     }
 }

app/src/main/java/clientserver/server/MessageProcessor.java

@@ -0,0 +1,51 @@
+package clientserver.server;
+
+import clientserver.client.Client;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+
+public class MessageProcessor {
+
+    private final Client client;
+    private final DatagramSocket clientHandlerSocket;
+    private final ClientHandler clientHandler;
+
+    public MessageProcessor(
+        Client client,
+        DatagramSocket clientHandlerSocket,
+        ClientHandler clientHandler
+    ) {
+        this.client = client;
+        this.clientHandlerSocket = clientHandlerSocket;
+        this.clientHandler = clientHandler;
+    }
+
+    public void processMessage(String message) {
+        if (message == null) {
+            return;
+        }
+
+        if (message.equals("/list")) {
+            handleListCommand();
+        } else if (message.equals("DISCONNECT")) {
+            handleDisconnect();
+        }
+    }
+
+    private void handleListCommand() {
+        Server.sendMessage(
+            clientHandlerSocket,
+            Server.getPseudos(),
+            client.getAddress(),
+            client.getPort()
+        );
+    }
+
+    private void handleDisconnect() {
+        System.out.println(
+            "Client deconnection : " + ClientHandler.prettyPrint(client)
+        );
+        Server.removeClientHandler(client.getPseudo());
+        clientHandler.stop();
+    }
+}