A real-time tick-based server from scratch for learning purposes

How to build

There are two ways, using Intellij IDEA or Gradle:

./gradlew build
java -jar modules/example/build/libs/example-all.jar

Do not use ./gradlew run because It does not have a console and throws a continuous error.

How to use

The project has a console implementation to handle input and output:

You can send increment:5 to increment the counter:

Current state: 0
increment:5
Current state: 5

The decrement also works.

When using the Intellij IDEA app run console, the output line break conflicts with the input, giving an error message: Unknown input

You can even send and receive messages through a socket server in the same way as the console:

nc localhost 9999

Project Structure

- build-logic:
  - kotlin-convention gradle plugin
- modules:
  - :core (Interfaces and Classes to implement a server)
  - :common (Common classes and utilities)
  - :console (Console communication implementation)
  - :socket (Socket communication implementation)
  - :counter (Business implementation as counter)
  - :example (The composition root where implement all those modules to show how it works)

TODO

There are many things that need to be done, I will list some of them:

• A better way to handle the events
• A gracefully shutdown hook
• Extract counter and example from rootProject and use includeBuild