init project

2026-06-07 10:23:19 +03:30
parent b0d47862d2
commit 255f9886d1
5 changed files with 255 additions and 0 deletions
@@ -0,0 +1,78 @@
+package chat;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.Socket;
+
+public class ClientHandler implements Runnable {
+
+    private final Socket clientSocket;
+    private final ChatServer chatServer;
+    private PrintWriter out;
+    private BufferedReader in;
+    private String username;
+
+    public ClientHandler(Socket clientSocket, ChatServer chatServer) {
+        this.clientSocket = clientSocket;
+        this.chatServer = chatServer;
+    }
+
+    @Override
+    public void run() {
+        try {
+            setupStreams();
+            requestUsername();
+            announceJoin();
+            listenForMessages();
+        } catch (IOException e) {
+            System.err.println("Client handler error: " + e.getMessage());
+        } finally {
+            cleanup();
+        }
+    }
+
+    private void setupStreams() throws IOException {
+        out = new PrintWriter(clientSocket.getOutputStream(), true);
+        in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
+    }
+
+    private void requestUsername() throws IOException {
+        out.println("Enter your username:");
+        username = in.readLine();
+        if (username == null || username.trim().isEmpty()) {
+            username = "Anonymous";
+        }
+    }
+
+    private void announceJoin() {
+        chatServer.broadcastSystemMessage("[System] " + username + " joined the chat.");
+    }
+
+    private void listenForMessages() throws IOException {
+        String message;
+        while ((message = in.readLine()) != null) {
+            chatServer.broadcast(username + ": " + message, this);
+        }
+    }
+
+    private void cleanup() {
+        chatServer.removeClient(this);
+        try {
+            if (clientSocket != null && !clientSocket.isClosed()) {
+                clientSocket.close();
+            }
+        } catch (IOException e) {
+            System.err.println("Error closing socket: " + e.getMessage());
+        }
+    }
+
+    public void sendMessage(String message) {
+        out.println(message);
+    }
+
+    public String getUsername() {
+        return username;
+    }
+}