[미션 Day 4] 리팩토링 & SOLID 원칙 #2
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discphy
commented
Mar 4, 2025
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| public class Items { | ||
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| private final List<Item> list = new ArrayList<>(); | ||
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| public boolean isEmpty() { | ||
| return list.isEmpty(); | ||
| } | ||
| } |
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일급 컬렉션으로 의미 있는 도메인 객체로 만들어 불변성을 유지하게 끔 리팩토링하였습니다.
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| public boolean hasNotInfo() { | ||
| return name.isEmpty() || email.isEmpty() || phoneNumber.isEmpty(); | ||
| } |
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단일 책임 원칙을 준수하기 위해 사용자 정보 검증하는 메서드를 Member 객체에 분리 시켜 작성하였습니다.
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| public boolean validate() { | ||
| if (items.isEmpty()) { | ||
| log.info("주문 항목이 없습니다."); | ||
| return false; | ||
| } | ||
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| if (totalPrice <= 0) { | ||
| log.info("올바르지 않은 총 가격입니다."); | ||
| return false; | ||
| } | ||
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| if (member.hasNotInfo()) { | ||
| log.info("사용자 정보가 없습니다."); | ||
| return false; | ||
| } | ||
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| return true; | ||
| } |
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조건문안에 부정 연산자를 제거하여 메서드명으로만 유추할 수 있도록 리팩토링 하였습니다.
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추가적으로, 도메인 레이어에서 로깅하는게 조금 신경쓰입니다.. 더 좋은 리팩토링 방안이 있을까요?
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