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Add udp and tcp listeners

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This commit is contained in:
Guilherme Werner
2023-06-15 14:11:59 -03:00
parent aab30f029d
commit ae672bf4e7
2 changed files with 142 additions and 30 deletions
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73
src/main/java/org/example/ClientApp.java
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@ -8,17 +8,21 @@ import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.Socket;
public class ClientApp extends JFrame {
private static final String SERVER_IP = "localhost";
private static final int SERVER_PORT = 1234;
private static final int SERVER_TCP_PORT = 1234;
private static final int SERVER_UDP_PORT = 5678;
private JTextArea chatArea;
private JTextField messageField;
private JButton sendButton;
private Socket socket;
private Socket tcpSocket;
private DatagramSocket udpSocket;
private BufferedReader in;
private PrintWriter out;
private String clientName;
@ -55,21 +59,23 @@ public class ClientApp extends JFrame {
setVisible(true);
connectToServer();
startListening();
startTCPListening();
startUDPListening();
}
private void connectToServer() {
try {
socket = new Socket(SERVER_IP, SERVER_PORT);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
tcpSocket = new Socket(SERVER_IP, SERVER_TCP_PORT);
udpSocket = new DatagramSocket();
in = new BufferedReader(new InputStreamReader(tcpSocket.getInputStream()));
out = new PrintWriter(tcpSocket.getOutputStream(), true);
chatArea.append("Connected to server\n");
} catch (IOException e) {
e.printStackTrace();
}
}
private void startListening() {
private void startTCPListening() {
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
@ -84,7 +90,7 @@ public class ClientApp extends JFrame {
try {
in.close();
out.close();
socket.close();
tcpSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
@ -94,21 +100,60 @@ public class ClientApp extends JFrame {
thread.start();
}
private void startUDPListening() {
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
byte[] buffer = new byte[1024];
DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
while (true) {
udpSocket.receive(packet);
String message = new String(packet.getData(), 0, packet.getLength());
chatArea.append(message + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
udpSocket.close();
}
}
});
thread.start();
}
private void sendMessage() {
String message = messageField.getText().trim();
if (!message.isEmpty()) {
out.println(clientName + ": " + message);
//sendUDPMessage(clientName + ": " + message);
messageField.setText("");
chatArea.append("You: " + message + "\n");
}
}
private void sendUDPMessage(String message) {
try {
byte[] buffer = message.getBytes();
DatagramPacket packet = new DatagramPacket(buffer, buffer.length, tcpSocket.getInetAddress(),
SERVER_UDP_PORT);
udpSocket.send(packet);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new ClientApp(args[0]);
}
});
if (args.length > 0) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new ClientApp(args[0]);
}
});
} else {
System.out.println("Please provide a client name as an argument.");
}
}
}