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Distributed Shared WhiteBoard

Overview

This project aims to create a distributed shared whiteboard that enables multiple users to collaborate in real-time. Users can draw on a shared canvas, supporting features like freehand drawing, shapes, text input, and color selection. The system is implemented in Java, and choose technologies like TCP/IP Sockets for building this distributed application.

Main Challenges

  • Concurrency Handling: Addressing simultaneous actions to maintain a reasonable state.
  • System Structuring: Options include multiple servers communicating or a central server managing the system state.
  • Networked Communication: Deciding when and what messages are sent across the network, and designing an exchange protocol.
  • GUI Implementation: Utilizing tools like Java Swing drawing package for functionality resembling MS Paint.

Key Features

Alt text

  1. Multiuser Whiteboard:
    • Support multiple users drawing on a shared canvas.
    • Single shared whiteboard for all clients.
  2. Key Elements with GUI:
    • Support drawing shapes (line, circle, oval, rectangle).
    • Text input allowing users to type anywhere on the whiteboard.
    • Choose from at least 16 colors for drawing.
  3. Chat Window:
    • Text-based communication among users.
  4. File Menu:
    • New, open, save, saveAs, and close functionalities managed by the manager.
  5. Manager Controls:
    • Allow the manager to kick out a specific user.
    • Allow the manager to approve a user to join.

Running Commonds

  1. Create Whiteboard:

    java CreateWhiteBoard <serverIPAddress> <serverPort>

  2. Join Whiteboard:

    java JoinWhiteBoard <serverIPAddress> <serverPort>