mahmoudfawzykhalil / chatty

A desktop chatting application built using JavaFX and RMI as our first project at the Information Technology Institute. It takes full advantage of JavaFX's reactive programming model, using property binding to synchronize Models with Views.

A desktop chatting application built using JavaFX and RMI as our first project at the Information Technology Institute. It takes full advantage of JavaFX's reactive programming model, using property binding to synchronize Models with Views.

🏛 Architecture

This software project was built using a layered architecture. The following diagram demonstrates an example use case that goes through all the layers.

⚙ Features

• Registration and login
• One to one and group chats
• File transfer
• Server statistics and management
• Updating user profiles
• AIML chatbot
• Auto-detect any available server using a UDP discovery protocol
• Voice chat
• Save messages to database

⚙ Technologies used

• Maven
• JDBC
• Sockets
• RMI
• JavaFX
• IO / NIO
• Bean Validation (Hibernate Validator)
• MapStruct
• Logback
• HikariCP
• MySQL
• Spring Security Crypto

🛠 How to run

Maven

• Download version 0.0.4.3 of the chatbot dependency from here.
• Install it using the following maven command:

mvn install:install-file -Df`ile=Ab.jar -DgroupId=com.google -DartifactId=Ab -Dversion=0.0.4.3 -Dpackaging=jar

• Run the mvn install phase from the chatty-parent directory to create the shaded executable jars in the target/ directory
• Run the jars using the java -jar command

MySQL

• Use the chatty.sql script to create the database using MySQL 8.0.28
• Create a database user using MySQL Commandline 8.0 using the following commands:

CREATE USER 'chattyuser'@'localhost' IDENTIFIED BY 'P@$$word';
GRANT ALL PRIVILEGES ON chatty . * TO 'chattyuser'@'localhost';
FLUSH PRIVILEGES;

👷‍♀️ Contributors

• Ahmed Osama
• Christine Nedaa
• Hafsa Mohamed
• Mahmoud Fawzy
• Salma Fayez

chatty's Issues

AddGroupChatView, Styles, Controller

AddGroupChatStyles.css
AddGroupChatController.java

Implement CustomCellFactories and update Views to use ListView

update profile reset

Send a server shutdown message to the Clients to let them know you've shut down: return all of them to the server start menu + set all their services to null!

ON SIGN OUT TOO!

update profile

Status notifications

• 1. User logs in, calls connectionDao.notifyOnline(List contactPhoneNumbers)

• 2. User signs out, calls connectionDao.unregister -> this notifies people he's offline now

• 4. Handle exceptions in places that call Client to remove it from the client list and notify all users (so the removeClient method should automatically call notfifyOffline

• 5. When a user logs in and his contacts get loaded, he should query the server to find out which of them are currently online and set their status color properly!

Save message to DB

Add group chat

Setup ConnectionPool.java

Server announcement

Make CustomControls

MainView(4)

AddGroupView(1)

AddContactView(1)

InvitationView(1)

Add timestmap label to Chat Bubbles

Setup InvitationModel

• InvitationModel
• ListProperty on UserModel for Invitation list

image

Start/Stop service

Define repository interfaces

unexport remote objects

register bug confirm password

Bind Models with Views

• Setup Model factory
• Bind models with views

register

AddContactsView, CSS, Controller

AddContactsStyles.css
AddContactsController.java

InvitationsView, CSS, Controller

InvitationsStyles.css
InvitationsController.java

Setup the StageCoordinator

Multirun plugin (only on commons changes)

Setup MySQL for everyone and run the chat.sql script

• Setup MySQL for everyone
• Add Invitations to database
• Add dummy data
• Upload chat.sql to GitHub
• Run chat.sql

Add extractors to observable lists

UpdateProfileView Styles, Controller

UpdateProfileStyles.css
UpdateProfileController.java

logback for logging

e.g. attempt to login
register attempt + failed
registry creation
don't log sensitive data
don't print the entire stack trace in logging
just the message (to prevent hacking) (Only in debugging + remove on commit)
don't e.printStackTrace(), instaed, log)

Fix update profile

⚠⚠⚠⚠⚠Everyone: install Ab dependency + update chatty.sq⚠⚠⚠⚠⚠

Login View, CSS, and Controller

use a user not root in db

Group chat message

message between one to one contact

Refactor views to use ListView

• Osama's ListView (Add Group)
• Hafsa's ListView (Invitation)
• ChatView's ListView
• Invitation CellFactory
• ChatView CellFactory

Create Entity Mappers and Repository Implementations

Add connect to server screen

Server Dashboard

Registration Controller

Save messages in database

exit without forgetting

Add MessageModel ListProperty on ContactModel and GroupChatModel

Main and Chat View, CSS, and Controller

Registration View and CSS

Adding Contact Usecase

• Accept invite should fetch ContactDto of accepted contact and server gives it to Client by addNewContacts method + delete from UI
• Refuse invite should just delete from db + delete from UI
• Add contact should auto accept if user already sent me an invitaiton: remove invitation from db + add contact to db + update contact lists of both contacts
• Add contact should send the invite to the online receiver immediately

Implement Models

Chatbot

Add toString() methods in models/dtos

Add Server IP TextField to Login Screen

Load ChatView at the start of the program and add it to scene map