Bully algorithm implementation

Create instances in the main class, the first parameter is a http port and the second an alias:

    Machine machine4444 = Machine.create(4444, "machine-one");
    Machine machine5555 = Machine.create(5555, "machine-two");
    Machine machine6666 = Machine.create(6666, "machine-three");

    new Thread(() -> {
        machine4444.getContext().getCluster().addMachine(machine4444);
        machine4444.getContext().getCluster().addMachine(machine5555);
        machine4444.getContext().getCluster().addMachine(machine6666);
        machine4444.start();
    }).start();

    new Thread(() -> {
        machine5555.getContext().getCluster().addMachine(machine4444);
        machine5555.getContext().getCluster().addMachine(machine5555);
        machine5555.getContext().getCluster().addMachine(machine6666);
        machine5555.start();
    }).start();

    new Thread(() -> {
        machine6666.getContext().getCluster().addMachine(machine4444);
        machine6666.getContext().getCluster().addMachine(machine5555);
        machine6666.getContext().getCluster().addMachine(machine6666);
        machine6666.start();
    }).start();

kill a machine to see elections happening again

Put the port of the machine you want to kill and the kill command in the header

curl --location --request GET 'http://localhost:4444' --header 'message-type: kill'

On Postman