complete
This commit is contained in:
Reza
@@ -1,18 +1,32 @@
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package com.university.chat.Client;
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public class ServerListener implements Runnable{
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// TODO: store the ObjectInputStream from the user socket
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// (this should be the same input stream the
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// chatClient created when connecting)
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import com.university.chat.Common.ChatMessage;
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import com.university.chat.Common.FileMessage;
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import java.io.ObjectInputStream;
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public class ServerListener implements Runnable{
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private final ObjectInputStream in;
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public ServerListener(ObjectInputStream in) {
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this.in = in;
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}
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@Override
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public void run() {
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try {
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// TODO: In an infinite loop read objects from the server
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// - if it's a ChatMessage -> print "<sender>: <content>"
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// - if it's a FileMessage -> print that a file was received
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// (filename + sender), it's already
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// saved to disk by the server.
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while (true) {
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Object obj = in.readObject();
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if (obj instanceof ChatMessage msg) {
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if (msg.getType() == com.university.chat.Common.MessageType.USER_LIST) {
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System.out.println("Online users: " + msg.getContent());
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} else {
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System.out.println(msg.getSender() + ": " + msg.getContent());
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}
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} else if (obj instanceof FileMessage fileMsg) {
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System.out.println("File received: " + fileMsg.getFilename()
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+ " from " + fileMsg.getSender());
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}
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}
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} catch (Exception e){
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System.out.println("Disconnected from server");
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}
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@@ -1,29 +1,81 @@
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package com.university.chat.Client;
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public class chatClient {
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public static void main() {
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// TODO: Connecting to the server
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// 1. Create a socket and connect to the server
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// 2. Create an ObjectOutputStream (out) and ObjectInputStream (in)
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// from the socket's streams — output FIRST, then input.
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// 2. Get the username, and send a LOGIN ChatMessage with that username
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// 3. Start a new Thread running a ServerListener(in) so incoming
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// messages are handled concurrently.
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import com.university.chat.Common.ChatMessage;
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import com.university.chat.Common.FileMessage;
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import com.university.chat.Common.MessageType;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.net.Socket;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.Scanner;
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while (true){
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try {
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// TODO: Program loop — read a line from the console and act on it:
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// - "/msg <user> <text>" -> build & send a PRIVATE_MESSAGE
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// - "/users" -> build & send a USER_LIST request
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// - "/sendfile <user> <path>" -> read the file into a byte[]
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// (you can use TransferProgress
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// to show progress)
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// and send it as a FileMessage
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// - anything else -> send a PUBLIC_MESSAGE
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// Remember to flush() the output stream after writeObject().
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} catch (Exception e){
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System.out.println("command failed: " + e.getMessage());
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public class chatClient {
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public static void main(String[] args) {
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String serverAddress = "localhost";
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int serverPort = 12345;
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try (Socket socket = new Socket(serverAddress, serverPort);
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ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
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ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
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Scanner console = new Scanner(System.in)) {
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System.out.print("Enter username: ");
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String username = console.nextLine();
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out.writeObject(new ChatMessage(MessageType.LOGIN, username, null, null));
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out.flush();
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ChatMessage response = (ChatMessage) in.readObject();
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if (response.getType() == MessageType.LOGIN_FAILED) {
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System.out.println("Login failed: " + response.getContent());
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return;
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}
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System.out.println("Connected as " + username);
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Thread listener = new Thread(new ServerListener(in));
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listener.start();
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while (true) {
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try {
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String line = console.nextLine();
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if (line.startsWith("/msg ")) {
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String[] parts = line.split(" ", 3);
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if (parts.length < 3) {
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System.out.println("Usage: /msg <user> <message>");
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continue;
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}
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out.writeObject(new ChatMessage(MessageType.PRIVATE_MESSAGE, username, parts[1], parts[2]));
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}
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else if (line.equals("/users")) {
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out.writeObject(new ChatMessage(MessageType.USER_LIST, username, null, null));
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}
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else if (line.startsWith("/sendfile ")) {
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String[] parts = line.split(" ", 3);
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if (parts.length < 3) {
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System.out.println("Usage: /sendfile <user> <filepath>");
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continue;
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}
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try {
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byte[] data = Files.readAllBytes(Path.of(parts[2]));
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out.writeObject(new FileMessage(username, parts[1],
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Path.of(parts[2]).getFileName().toString(), data));
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}
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catch (IOException e) {
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System.out.println("File error: " + e.getMessage());
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}
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}
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else {
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out.writeObject(new ChatMessage(MessageType.PUBLIC_MESSAGE, username, null, line));
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}
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out.flush();
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}
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catch (Exception e) {
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System.out.println("command failed: " + e.getMessage());
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}
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}
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} catch (Exception e) {
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System.out.println("Connection closed: " + e.getMessage());
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}
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}
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}
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}
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