Client can now receive messages from clients

Added colored logging to the server

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

src/client/networking/Client.java

@@ -10,16 +10,22 @@ public class Client {
     private DataOutputStream out;
     private DataInputStream in;
     private static Scanner scanner;
+    private static String name;
     private boolean success;
 
-    public Client(String ip, int port) {
+    public static final String ANSI_RESET = "\u001B[0m";
+    public static final String ANSI_CYAN = "\u001B[36m";
+
+
+    public Client(String ip, int port, String name) {
         try {
             scanner = new Scanner(System.in);
             Socket serverSocket = new Socket(ip, port);
             out = new DataOutputStream(serverSocket.getOutputStream());
             in = new DataInputStream(serverSocket.getInputStream());
-            System.out.println(in.readUTF());
             success = true;
+            this.name = name;
+            System.out.println(name);
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -27,9 +33,14 @@ public class Client {
 
     public void handshake() {
         try {
-            out.writeUTF("849465467842158");
+            out.writeInt(165313125);
             out.flush();
             success = in.readInt() == 200;
+            if (success){
+                out.writeUTF(name);
+                System.out.printf(ANSI_CYAN + "You successfully connected to %s%n"+ANSI_RESET, in.readUTF());
+            }
+            System.out.println(success);
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -41,7 +52,7 @@ public class Client {
             String message = scanner.nextLine();
             try {
                 out.writeUTF(message);
-                out.flush();
+                System.out.println(in.readInt());
             } catch (IOException e) {
                 e.printStackTrace();
             }
@@ -64,8 +75,16 @@ public class Client {
         return success;
     }
 
+    public String getName(){return name;}
+
+
     public static void main(String[] args) {
-        Client client = new Client("localhost", 2589);
+        Client client;
+        if (args.length > 0) {
+            client = new Client("localhost", 2589, args[0]);
+        } else {
+            client = new Client("localhost", 2589, "GenericName");
+        }
         client.handshake();
         client.oneSidedMessage();
     }

src/server/logging/LogType.java

@@ -0,0 +1,7 @@
+package server.logging;
+
+public enum LogType {
+    Log,
+    Message,
+    Error
+}

src/server/logging/Logger.java

@@ -0,0 +1,39 @@
+package server.logging;
+
+import java.sql.Timestamp;
+
+public class Logger {
+
+    private static final String ANSI_RESET = "\u001B[0m";
+    private static final String ANSI_BLACK = "\u001B[30m";
+    private static final String ANSI_RED = "\u001B[31m";
+    private static final String ANSI_GREEN = "\u001B[32m";
+    private static final String ANSI_YELLOW = "\u001B[33m";
+    private static final String ANSI_BLUE = "\u001B[34m";
+    private static final String ANSI_PURPLE = "\u001B[35m";
+    private static final String ANSI_CYAN = "\u001B[36m";
+    private static final String ANSI_WHITE = "\u001B[37m";
+
+    public void printLog(String message, String name, LogType logType){
+        switch (logType){
+            case Log:
+                System.out.printf(ANSI_CYAN + "%s %s%n"+ANSI_RESET, new Timestamp(System.currentTimeMillis()), message);
+                break;
+
+            case Error:
+                System.out.printf(ANSI_RED + "%s %s%n"+ ANSI_RESET, new Timestamp(System.currentTimeMillis()), message);
+                break;
+
+            case Message:
+                System.out.printf(ANSI_WHITE + "    %s %s %s%n" +ANSI_RESET, new Timestamp(System.currentTimeMillis()), name, message);
+                break;
+
+            default:
+                System.err.println("NO VALID LOGTYPE GIVEN");;
+        }
+    }
+
+    public void printLog(String message, LogType logType){
+        this.printLog(message, "", logType);
+    }
+}

src/server/networking/Server.java

@@ -1,5 +1,8 @@
 package server.networking;
 
+import server.logging.LogType;
+import server.logging.Logger;
+
 import java.io.*;
 import java.net.ServerSocket;
 import java.net.Socket;
@@ -9,8 +12,10 @@ import java.util.Scanner;
 public class Server {
     private ServerSocket serverSocket;
     private HashMap<Integer, Socket> clients;
+    private HashMap<Socket, String> clientNames;
     private HashMap<Socket, DataOutputStream> outstreams;
     private HashMap<Socket, DataInputStream> instreams;
+    private Logger logger;
     private Scanner scanner;
     private int requiredConnections;
 
@@ -18,10 +23,14 @@ public class Server {
         try {
             serverSocket = new ServerSocket(port);
             clients = new HashMap<>();
+            clientNames = new HashMap<>();
             outstreams = new HashMap<>();
             instreams = new HashMap<>();
             scanner = new Scanner(System.in);
+            logger = new Logger();
             requiredConnections = 2;
+
+            logger.printLog("Server started successfully", LogType.Log);
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -30,14 +39,13 @@ public class Server {
     public void connectClients(){
         try {
             int id = 0;
-            System.out.printf("Waiting for %d clients to connect%n", requiredConnections);
+            logger.printLog(String.format("Waiting for %d clients to connect ...", requiredConnections), LogType.Log);
             while(clients.size() < requiredConnections) {
                 Socket momentaryClient = serverSocket.accept();
                 clients.put(id, momentaryClient);
                 outstreams.put(momentaryClient, new DataOutputStream(momentaryClient.getOutputStream()));
                 instreams.put(momentaryClient, new DataInputStream(momentaryClient.getInputStream()));
                 id++;
-                System.out.printf("networking.Client %d got connected%n", id);
             }
         } catch (IOException e) {
             e.printStackTrace();
@@ -47,57 +55,54 @@ public class Server {
     public void handshake(){
         for (Socket client: clients.values()) {
             try {
-                String handshakeValue = instreams.get(client).readUTF();
+                int handshakeValue = instreams.get(client).readInt();
-                if (handshakeValue.equals("849465467842158")) {
+                if (handshakeValue == 165313125) {
                     outstreams.get(client).writeInt(200);
+                    outstreams.get(client).flush();
+                    clientNames.put(client, instreams.get(client).readUTF());
+                    outstreams.get(client).writeUTF(serverSocket.getInetAddress().getHostAddress()+":"+serverSocket.getLocalPort());
+                    outstreams.get(client).flush();
+                    logger.printLog(String.format("%s got connected", clientNames.get(client)), LogType.Log);
                 } else {
                     outstreams.get(client).writeInt(403);
+                    outstreams.get(client).flush();
                 }
-                outstreams.get(client).flush();
+
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        for (Socket client: clients.values()) {
-            try {
-                String response = instreams.get(client).readUTF();
-                System.out.println(response);
-                if (response.equals("1")){
-                    outstreams.get(client).writeUTF("Connection confirmed :)");
-                    outstreams.get(client).writeUTF("Send me a message ...");
-                    System.out.println("Connection confirmed :)");
-                } else {
-                    outstreams.get(client).writeUTF("Connection failed");
-                    System.out.println("Connection failed");
-                    client.close();
-                }
-                outstreams.get(client).flush();
             } catch (IOException e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public void getMessage(){
+    public void getMessages(){
         for (Socket client: clients.values()) {
             try {
                 while (true) {
                     String message = instreams.get(client).readUTF();
-                    System.out.println(message);
+                    if (!message.equalsIgnoreCase("exit()")) {
-                    if(message.equalsIgnoreCase("exit()"))
+                        logger.printLog(message, clientNames.get(client), LogType.Message);
+                    } else {
+                        outstreams.get(client).writeInt(200);
+                        logger.printLog(String.format("%s closed the connection",clientNames.get(client)), LogType.Log);
                         break;
+                    }
+                    outstreams.get(client).writeInt(200);
                 }
             } catch (IOException e) {
                 e.printStackTrace();
+                try {
+                    client.close();
+                } catch (IOException ioException) {
+                    ioException.printStackTrace();
+                }
             }
         }
     }
 
     public static void main(String[] args) {
         Server server = new Server(2589);
-        System.out.println("networking.Server got started");
         server.connectClients();
         server.handshake();
-        server.getMessage();
+        server.getMessages();
     }
 }