p2p-chat-app

Features:

1. Simultaneous single/multi-chatter chatrooms
2. Asychronous message passing
3. Handling of various of message types, e.g., text, image, mp3, simple games ---- most importantly a receiver can ultimately handle a message type originally unknown to him/her.

Technical Overview:

• Java RMI
• MVC pattern
• Extended visitor pattern
• Command dispatching pattern
• Java multithreading

Instructions:

• run ChatAppController.launch to start the app.
• IGNORE WORKING MODE panel and TESTING panel, unless you are going to run two ChatApp simultaneously on the same machine.
• Go to LOG IN panel; enter a desired user name and click LOG IN button.
• Go to NEW CHATROOM panel; enter a desired chatroom name and click CREATE to create a chatroom of desired name.
• Go to CONNECT TO panel; enter an IP address and click CONNECT button to connect to a remote host. The host name will be shown in the drop list in CONNECTED HOST panel, if connection is built successfully.
• In CONNECTED HOST panel, click REQUEST button to request a list of chatrooms from remote host. Choose one to join.
• Click the log out button to quit the app.
  • In chatroom
    • Enter text in the text field and click SEND TEXT button to send a msg.
    • Click SEND IMAGE to choose from a local file systems.
    • Click LEAVE to exit the chatroom.

In particular, if you wish to run two ChatApp simultaneously on the same machine.

• Click TESTING USER 1 for the first app.
• Click TESTING USER 2 for the second app.
• Choose different names for two users.
• Otherwise the same as normal instructions when running the ChatApp.

In addition to 5 well known datatype, there are 2 unknown data type:

• TextMsg
• ImageMsg

Notice:

• When a user is receiving these unknown datapacket, it will send an data packet of IRequestCmdType to the original sender to request the cmd for unknown data type.
• A user doesn't necessarily