Added basic server structure

vs.pu01/vs.pu01/src/main/java/vs/Server.java

@@ -0,0 +1,57 @@
+package vs;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+
+public class Server {
+    private static final int BUFFSIZE = 512;
+    private static final ExecutorService executor = Executors.newFixedThreadPool(2);
+
+    public interface PacketHandler {
+        void handlePacket(DatagramSocket socket, DatagramPacket packet, String serviceName);
+    }
+
+    public static void main(String[] args) {
+        startSocket(new DiscoveryHandler(), 8888, "Discovery Service");
+        startSocket(new SyslogHandler(), 8887, "Logging Service"); //? Port geraten idk
+    }
+
+    private static void startSocket(PacketHandler handler, int port, String serviceName) {
+        executor.execute(() -> {
+            try (DatagramSocket socket = new DatagramSocket(port)) {
+                System.out.println(serviceName + " listening on port " + port);
+                byte[] buffer = new byte[BUFFSIZE]; //? Maybe andere Größe
+
+                while (true) {
+                    DatagramPacket packetIn = new DatagramPacket(buffer, BUFFSIZE); //? Nicht sicher ob die Arguments richtig sind
+                    socket.receive(packetIn);
+
+                    handler.handlePacket(socket, packetIn, serviceName);
+                }
+            } catch (IOException e) {
+                //? Maybe besseres Error handling
+                System.err.println(serviceName + " error: " + e.getMessage());
+            }
+        });
+    }
+
+
+    static class SyslogHandler implements PacketHandler {
+        @Override
+        public void handlePacket(DatagramSocket socket, DatagramPacket packet, String serviceName) {
+            
+        }
+    }
+
+    static class DiscoveryHandler implements PacketHandler {
+        @Override
+        public void handlePacket(DatagramSocket socket, DatagramPacket packet, String serviceName) {
+            
+        }
+    }
+}
+