A1

README.md

@@ -14,3 +14,5 @@ Some relevant websites related to this repository:
 * Student solutions to exercises (first edition): http://highered.mheducation.com/sites/0077097610/student_view0/student_solutions.html
 
 Professors may obtain solutions to exercises including code by contacting the authors. They must show a web presence confirming their email address and that they are indeed an academic at that same domain.
+
+Ahmed Abdulwahab      300124243     aabdu170@uottawa.ca

code/simplechat1/ClientConsole.java

@@ -41,14 +41,19 @@ public class ClientConsole implements ChatIF
    * @param host The host to connect to.
    * @param port The port to connect on.
    */
-  public ClientConsole(String host, int port) 
+  public ClientConsole(String id, String host, int port) 
   {
     try 
     {
       client= new ChatClient(host, port, this);
+      try {
+        client.sendToServer("#login "+id);
+      }catch(IOException e){
+        System.out.println("Could login to server. Terminating.");
+        quit();
+      }
     } 
-    catch(IOException exception) 
-    {
+    catch(IOException exception) {
       System.out.println("Error: Can't setup connection!"
                 + " Terminating client.");
       System.exit(1);
@@ -104,19 +109,45 @@ public void display(String message)
    */
   public static void main(String[] args) 
   {
+    String id = "";
     String host = "";
     int port = 0;  //The port number
+    try{
+      id = args[0];
+    }catch(ArrayIndexOutOfBoundsException e){
+      System.out.println("user id required.");
+      System.exit(0);
+    }
+
+    try{
+      host = args[1];
+    }catch(ArrayIndexOutOfBoundsException e){
+      host = "localhost";
+    }
 
     try
     {
-      host = args[0];
+      port = Integer.parseInt(args[1]);
     }
     catch(ArrayIndexOutOfBoundsException e)
     {
-      host = "localhost";
+      port = 5555;
     }
-    ClientConsole chat= new ClientConsole(host, DEFAULT_PORT);
+
+    ClientConsole chat = new ClientConsole(id, host, port);
     chat.accept();  //Wait for console data
   }
+
+  public void quit(){
+    /*try{
+      closeConnection();
+    }
+    catch(IOException e) {
+
+  }*/
+  System.exit(0);
+}
+
+
 }
 //End of ConsoleChat class

code/simplechat1/EchoServer.java

@@ -3,6 +3,8 @@
 // license found at www.lloseng.com 
 
 import java.io.*;
+
+import client.ChatClient;
 import ocsf.server.*;
 
 /**
@@ -45,11 +47,17 @@ public EchoServer(int port)
    * @param msg The message received from the client.
    * @param client The connection from which the message originated.
    */
-  public void handleMessageFromClient
-    (Object msg, ConnectionToClient client)
-  {
-    System.out.println("Message received: " + msg + " from " + client);
-    this.sendToAllClients(msg);
+  public void handleMessageFromClient(Object msg, ConnectionToClient client){
+    String message = msg.toString();
+    if(message.charAt(0) =='#'){
+      if(message.substring(1,6).equals("login")){
+        System.out.println("xD");
+        client.setInfo("id",message.substring(6));
+      }
+
+    }
+    System.out.println("Message received: " + message + " from " + client.getInfo("id"));
+    this.sendToAllClients(client.getInfo("id") + ": " + message);
   }
 
   /**
@@ -72,8 +80,45 @@ protected void serverStopped()
       ("Server has stopped listening for connections.");
   }
 
-  //Class methods ***************************************************
-
+  protected void clientConnected(ConnectionToClient client) {
+    System.out.println("A Client has connected to the server !");
+  }
+  synchronized protected void clientDisconnected(ConnectionToClient client) {
+    System.out.println("A Client has disconnected from the server .");
+  }
+
+  //Class methods *************************************************** 
+  public void handleMessageFromServerUI(String message){
+    if(message.charAt(0) == '#'){
+      if(message.substring(1,5).equals("quit")){
+        System.exit(0);
+      }else if(message.substring(1,5).equals("stop")){
+        stopListening();
+      }else if(message.substring(1,6).equals("close")){
+        stopListening();
+      }else if(message.substring(1,6).equals("start")){
+        if(!isListening()){
+          try{
+            listen();
+          } catch(Exception exception){
+            System.out.println("friggin error xD");
+          }
+        }else{
+          System.out.println("Server already listening");
+        }
+      }else if(message.substring(1,8).equals("setport")){
+        if(isListening()){
+          System.out.println("Error: yous already connected foo");
+        }else{
+          setPort(Integer.parseInt(message.substring(9)));
+        }
+      }else if(message.substring(1,8).equals("getport")){
+        System.out.println(getPort());
+      }
+    }else{
+    this.sendToAllClients("SERVER MSG > "+message);
+    }
+  }
   /**
    * This method is responsible for the creation of 
    * the server instance (there is no UI in this phase).

code/simplechat1/ServerConsole.java

@@ -0,0 +1,129 @@
+// This file contains material supporting section 3.7 of the textbook:
+// "Object Oriented Software Engineering" and is issued under the open-source
+// license found at www.lloseng.com 
+
+import java.io.*;
+import client.*;
+import common.*;
+
+/**
+ * This class constructs the UI for a chat client.  It implements the
+ * chat interface in order to activate the display() method.
+ * Warning: Some of the code here is cloned in ServerConsole 
+ *
+ * @author François Bélanger
+ * @author Dr Timothy C. Lethbridge  
+ * @author Dr Robert Laganière
+ * @version July 2000
+ */
+public class ServerConsole implements ChatIF 
+{
+  //Class variables *************************************************
+
+  /**
+   * The default port to connect on.
+   */
+  final public static int DEFAULT_PORT = 5555;
+
+  //Instance variables **********************************************
+
+  /**
+   * The instance of the client that created this ConsoEchoServerleChat.
+   */
+  EchoServer server;
+
+
+  //Constructors ****************************************************
+
+  /**
+   * Constructs an instance of the ClientConsole UI.
+   *
+   * @param host The host to connect to.
+   * @param port The port to connect on.
+   */
+  public ServerConsole(int port) 
+  {
+    try 
+    {
+      server= new EchoServer(port);
+      server.listen();
+    } 
+    catch(Exception exception) 
+    {
+      System.out.println("Error: Can't setup connection!"
+                + " Terminating client.");
+      System.exit(1);
+    }
+  }
+
+
+  //Instance methods ************************************************
+
+  /**
+   * This method waits for input from the console.  Once it is 
+   * received, it sends it to the client's message handler.
+   */
+  public void accept() 
+  {
+    try
+    {
+      BufferedReader fromConsole = 
+        new BufferedReader(new InputStreamReader(System.in));
+      String message;
+
+      while (true) 
+      {
+        message = fromConsole.readLine();
+        server.handleMessageFromServerUI(message);
+      }
+    } 
+    catch (Exception ex) 
+    {
+      System.out.println
+        ("Unexpected error while reading from console!");
+    }
+  }
+
+  /**
+   * This method overrides the method in the ChatIF interface.  It
+   * displays a message onto the screen.
+   *
+   * @param message The string to be displayed.
+   */
+  public void display(String message) 
+  {
+    System.out.println("> " + message);
+  }
+
+
+  //Class methods ***************************************************
+
+  /**
+   * This method is responsible for the creation of the Client UI.
+   *
+   * @param args[0] The host to connect to.
+   */
+  public static void main(String[] args) 
+  {
+    int port = 0;  //The port number
+    try
+    {
+      port = Integer.parseInt(args[0]);
+    }
+    catch(ArrayIndexOutOfBoundsException e)
+    {
+      port = 5555;
+    }
+
+    ServerConsole sv = new ServerConsole(port);
+   try{
+       sv.accept();
+   }catch (Exception ex){
+   }
+  }
+
+  public void quit(){
+    System.exit(0);
+  }
+}
+//End of ConsoleChat class