Assignment 1 submission

code/simplechat1/ClientConsole.java

@@ -1,122 +1,130 @@
+
 // 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 java.util.Scanner;
 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 
+ * 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 Timothy C. Lethbridge
  * @author Dr Robert Laganière
  * @version July 2000
  */
-public class ClientConsole 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 ConsoleChat.
-   */
-  ChatClient client;
-
-
-  //Constructors ****************************************************
-
-  /**
-   * Constructs an instance of the ClientConsole UI.
-   *
-   * @param host The host to connect to.
-   * @param port The port to connect on.
-   */
-  public ClientConsole(String host, int port) 
-  {
-    try 
-    {
-      client= new ChatClient(host, port, this);
-    } 
-    catch(IOException 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();
-        client.handleMessageFromClientUI(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) 
-  {
-    String host = "";
-    int port = 0;  //The port number
-
-    try
-    {
-      host = args[0];
-    }
-    catch(ArrayIndexOutOfBoundsException e)
-    {
-      host = "localhost";
-    }
-    ClientConsole chat= new ClientConsole(host, DEFAULT_PORT);
-    chat.accept();  //Wait for console data
-  }
+public class ClientConsole 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 ConsoleChat.
+	 */
+	ChatClient client;
+
+	// Constructors ****************************************************
+
+	/**
+	 * Constructs an instance of the ClientConsole UI.
+	 *
+	 * @param host The host to connect to.
+	 * @param port The port to connect on.
+	 */
+	public ClientConsole(String host, int port, String id) {
+		try {
+			client = new ChatClient(host, port, this, id);
+		} catch (IOException 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();
+				client.handleMessageFromClientUI(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) {
+		String host = "";
+		int port = DEFAULT_PORT; // The port number
+
+//		Scanner inputScanner = new Scanner(System.in);
+//		System.out.println("Enter login ID: ");
+//		String id = inputScanner.nextLine();
+//		if(id.isEmpty()) {
+//			System.out.println("ERROR - No login ID specified.  Connection aborted.");
+//			return;
+//		}
+
+		String id;
+		try {
+			id = args[0];
+		} catch (Exception e) {
+			System.out.println("ERROR - No login ID specified.  Connection aborted.");
+			return;
+		}
+
+		try {
+			if (Integer.valueOf(args[1]) > 0 && Integer.valueOf((args[1])) < 100000) {
+				port = Integer.valueOf((args[1]));
+			} else {
+				System.out.println("No valid port specified. Will use default port");
+			}
+		} catch (Exception e) {
+			System.out.println("No valid port specified. Will use default port");
+		}
+
+		try {
+			host = args[2];
+		} catch (ArrayIndexOutOfBoundsException e) {
+			host = "localhost";
+		}
+
+		ClientConsole chat = new ClientConsole(host, port, id);
+		chat.accept(); // Wait for console data
+	}
 }
 //End of ConsoleChat class