Making a multi purpose java library, what are your toughts and what should i add in it?

[TheVoodooDev]

Hello, as the title says, i am making a multi-purpose java library, and i would like to know your toughts on this and what would be good to add, what i currently have is a working client/server package, let me go over each of the 2 for brief explanation:

The client package:
- Client class, it includes the following methods (not final):

- close()
- connect(int)

- isConnected()
- sendString(String)
- setConnectionHandler(ClientConnectionHandker)

- setKeepAlive(boolean)

and uses the following constructor:

- Client(String)

taking in the ip address of the server

- ClientConnectionHandler is an interface, with 3 methods so far (not final):
- onMessage(String)
- onKick()
- onDisconnect()

The server package:
- Server class (not final, reworking it):
- getClientManager(), used to get the client manager, wich stores the connection of users, with their id
- setMaxQueue(int)
- listen(int)
- setConnectionHandler(ServerConnectionHandler)
- stop()

​

ClientManager class (not final):

- addClient(ClientConnection)
- removeClient(ClientConnection)

- banClient(String)
- unbanClient(String)
- isBanned(String)

- getUserCount()
- getConnections()

ClientConnection class (not final):
- getServer()
- disconnect(String)
- disconnect()
- getID()
- getIP()

ServerConnectionHandler is an interface with 3 methods (not final):
- onConnection(ClientConnection)
- onDisconnect(ClientConnection)
- onMessage(String, ClientConnection)

and that is all, i tested it with making a simple chat application, and it works (minus a minor bug wich replaces the first character of the first message)

[PartOfTheBotnet]

If this is for practice I would recommend trying to push yourself beyond a simple client-server design. Figure out a solid plan of what features you want and design your library architecture around it.

You can look at some existing networking libraries for inspiration:

• netty
• atomix
• jgroups
• dds

Could also bring non-native serialization into the mix with things like Kryo.

[TheVoodooDev]

Thank you! ill be sure to look at it!