Designed and developed within INSA Toulouse OOD/OOP courses, this system based on a Model View Controller (MVC) conception allows to communicate with both private and public networks. Indeed, its hybrid particularity comes from the fact that it uses a distributed architecture within local networks and a centralized one to reach the outside world.

• Logging in with a chosen username (see preview #1)
• Changing its username (see preview #2)
• See online/recent/offline users (see preview #3/4/5)
• Getting visually notified when there is an unseen message (see preview #3)
• Opening a conversation by selecting the associated correspondent (see preview #4)
• Sending and receiving messages (see preview #4)
• See messages from old conversations

• This project is using Java Development Kit 15.
• By default, INSA's server (accessible only with a VPN) is used to run the servlet. To have a local servlet and for debugging purposes, the tomcat server URL must be configured in ServerSendMessage.java:24.

In order to be able to retrieve old conversations and to manage logins, the system needs to operate on a local MySQL database.

1. Create a MySQL user named idchatsystem_usr with password idchatsystem_lgn.
2. Grant the listed permissions to idchatsystem_usr:
   • CREATE
   • DELETE
   • INSERT
   • SELECT

In order to create a client we will use the same application (jar) for each client with different provided arguments, specifying which type (distant/local) of user will be launched. There are three arguments to control the application:

1. local : indicating whether if the client is a local (value: local) or a distant (value: distant) client
2. clean : specifies whether if we want to clean the broadcast receivers ports database used to share them between clients. Can take values clean or noClean.
3. id (string) : specifies which client we want to launch.

The following shortcut can be created based on the jar located in \out\artifacts\IDChatSystem_jar\.

"C:\path\to\java-15.exe" -jar "C:\path\to\jar\IDChatSystem.jar" local clean id

Preview #1 - Logging in Preview #2 - Changing username Preview #3 - Sending/Receiving a message and displaying notification (conversation shortcut in blue) In order to view the previously received message, the user has to click on the select button or on the "blue area" Preview #4 - Chatting / Opening a conversation by clicking on the "select" button of the wanted correspondent Preview #5 - Viewing messages from an offline correspondent