CommandsForTietoFolks.java

gistfile1.txt

package lightweight4j.app;

import net.jodah.failsafe.Failsafe;
import net.jodah.failsafe.RetryPolicy;

import java.util.Arrays;
import java.util.Collection;

public class TietoAmazingTeam {

    public static void main(String[] args) {
        var informUser = new InformUserCommand("TietoUser", "We'll finish earlier");
        var rejectPayment = new RejectPaymentCommand("123", "No money, bro");
//        rejectPayment.execute();

        
        new Try(
                new Multiple(informUser, rejectPayment)
        ).execute();
    }

}
interface Command {
    void execute();
}

class Try  implements Command{

    private Command origin;

    public Try(Command origin) {
        this.origin = origin;
    }

    @Override
    public void execute() {
        Failsafe.with(new RetryPolicy<>()
                .onRetry(objectExecutionAttemptedEvent -> System.out.println("Retried!"))
                .withMaxAttempts(10)).run(() -> origin.execute());
    }
}

class Multiple implements Command {

    private Collection<Command> commands;

    public Multiple(Command... commands) {
        this.commands = Arrays.asList(commands);
    }

    @Override
    public void execute() {
        commands.forEach(Command::execute);
    }
}

class RejectPaymentCommand implements Command {
    private String paymentId;
    private String rejectionReason;

    public RejectPaymentCommand(String paymentId, String rejectionReason) {
        this.paymentId = paymentId;
        this.rejectionReason = rejectionReason;
    }

    @Override
    public void execute() {
        throw new RuntimeException("Ooops, things went wrong");
//        System.out.println("Payment " + paymentId + " has been rejected "  + rejectionReason);
    }
}


class InformUserCommand implements Command {
    private String userId;
    private String message;

    public InformUserCommand(String userId, String message) {
        this.userId = userId;
        this.message = message;
    }

    @Override
    public void execute() {
        System.out.println("Hey " + userId + "! Here is what you should know: " + message);
    }
}