Подскажите в какую сторону думать?
package com.javarush.task.task37.task3713;
import com.javarush.task.task37.task3713.space.crew.AbstractCrewMember;
import com.javarush.task.task37.task3713.space.SpaceShip;
/*
Chain of Responsibility
*/
public class Solution {
public static void main(String[] args) {
SpaceShip spaceShip = new SpaceShip();
AbstractCrewMember crewMember = spaceShip.getCrewChain();
crewMember.handleRequest(AbstractCrewMember.CompetencyLevel.EXPERT, "ATTACK");
System.out.println("-----------------------------------------");
crewMember.handleRequest(AbstractCrewMember.CompetencyLevel.NOVICE, "WASH THE FLOOR");
System.out.println("-----------------------------------------");
crewMember.handleRequest(AbstractCrewMember.CompetencyLevel.INTERMEDIATE, "CHECK ENGINE");
System.out.println("-----------------------------------------");
crewMember.handleRequest(AbstractCrewMember.CompetencyLevel.ADVANCED, "SET ROUTE");
}
}