์Šคํ”„๋ง ์ž…๋ฌธ - (19) AOP (Aspect Oriented Programming)

2023. 1. 29. 17:20ยทSpring/Spring ์ž…๋ฌธ

 

AOP (Aspect Oriented Programming)๋ž€?

๊ด€์  ์ง€ํ–ฅ ํ”„๋กœ๊ทธ๋ž˜๋ฐ

 

๊ด€์  ์ง€ํ–ฅ์€ ์–ด๋–ค ๋กœ์ง์„ ๊ธฐ์ค€์œผ๋กœ ํ•ต์‹ฌ์ ์ธ ๊ด€์ , ๋ถ€๊ฐ€์ ์ธ ๊ด€์ ์œผ๋กœ ๋‚˜๋ˆ„์–ด์„œ ๋ณด๊ณ  ๊ทธ ๊ด€์ ์„ ๊ธฐ์ค€์œผ๋กœ ๋ชจ๋“ˆํ™” ํ•˜๊ฒ ๋‹ค๋Š” ๊ฒƒ

*๋ชจ๋“ˆํ™” : ์–ด๋–ค ๊ณตํ†ต๋œ ๋กœ์ง์ด๋‚˜ ๊ธฐ๋Šฅ์„ ํ•˜๋‚˜์˜ ๋‹จ์œ„๋กœ ๋ฌถ๋Š” ๊ฒƒ

 

์˜ˆ๋ฅผ ๋“ค์–ด ํ•ต์‹ฌ์ ์ธ ๊ด€์ ์€ ๋น„์ฆˆ๋‹ˆ์Šค ๋กœ์ง์ด ๋  ์ˆ˜ ์žˆ๊ณ , ๋ถ€๊ฐ€์ ์ธ ๊ด€์ ์€ ํ•ต์‹ฌ ๋กœ์ง์„ ์‹คํ–‰ํ•˜๊ธฐ ์œ„ํ•ด ํ–‰ํ•ด์ง€๋Š” ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์—ฐ๊ฒฐ, ๋กœ๊น…, ํŒŒ์ผ ์ž…์ถœ๋ ฅ ๋“ฑ์ด ๋  ์ˆ˜ ์žˆ๋‹ค.

 

AOP๋Š” ํฉ์–ด์ง„ ๊ด€์‹ฌ์‚ฌ(Crosscutting Concerns)๋ฅผ ๋ชจ๋“ˆํ™” ํ•  ์ˆ˜ ์žˆ๋Š” ํ”„๋กœ๊ทธ๋ž˜๋ฐ ๊ธฐ๋ฒ•์ด๋‹ค

๋ชจ๋“ˆํ™” ์‹œ์ผœ๋†“์€ ๋ธ”๋Ÿญ์„ Aspect๋ผ๊ณ  ํ•œ๋‹ค. 

 

 

AOP๊ฐ€ ํ•„์š”ํ•œ ์ƒํ™ฉ

- ๋ชจ๋“  ๋ฉ”์†Œ๋“œ์˜ ํ˜ธ์ถœ ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๊ณ  ์‹ถ๋‹ค๋ฉด?
- ๊ณตํ†ต ๊ด€์‹ฌ ์‚ฌํ•ญ(cross-cutting concern) vs ํ•ต์‹ฌ ๊ด€์‹ฌ ์‚ฌํ•ญ(core concern)

- ํšŒ์› ๊ฐ€์ž… ์‹œ๊ฐ„, ํšŒ์› ์กฐํšŒ ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๊ณ  ์‹ถ๋‹ค๋ฉด?

 

์ธก์ •ํ•˜๋ ค๋Š” ๋ชจ๋“  ๋ฉ”์„œ๋“œ์— ๋กœ์ง์„ ๋„ฃ๋Š”๋‹ค

 

๋ฌธ์ œ์ 

- ํšŒ์›๊ฐ€์ž…, ํšŒ์› ์กฐํšŒ์— ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๊ธฐ๋Šฅ์€ ํ•ต์‹ฌ ๊ด€์‹ฌ ์‚ฌํ•ญ์ด ์•„๋‹ˆ๋‹ค.

- ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๋กœ์ง์€ ๊ณตํ†ต ๊ด€์‹ฌ ์‚ฌํ•ญ์ด๋‹ค.
- ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๋กœ์ง๊ณผ ํ•ต์‹ฌ ๋น„์ฆˆ๋‹ˆ์Šค์˜ ๋กœ์ง์ด ์„ž์—ฌ์„œ ์œ ์ง€๋ณด์ˆ˜๊ฐ€ ์–ด๋ ต๋‹ค.

- ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๋กœ์ง์„ ๋ณ„๋„์˜ ๊ณตํ†ต ๋กœ์ง์œผ๋กœ ๋งŒ๋“ค๊ธฐ ๋งค์šฐ ์–ด๋ ต๋‹ค.

- ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๋กœ์ง์„ ๋ณ€๊ฒฝํ•  ๋•Œ ๋ชจ๋“  ๋กœ์ง์„ ์ฐพ์•„๊ฐ€๋ฉด์„œ ๋ณ€๊ฒฝํ•ด์•ผ ํ•œ๋‹ค.

 

 

AOP ์ ์šฉ

๊ณตํ†ต ๊ด€์‹ฌ ์‚ฌํ•ญ(cross-cutting concern) vs ํ•ต์‹ฌ ๊ด€์‹ฌ ์‚ฌํ•ญ(core concern) ๋ถ„๋ฆฌ

 

AOP  ์ ์šฉ - ๊ณตํ†ต ๊ด€์‹ฌ ์‚ฌํ•ญ ๋ถ„๋ฆฌ

 

 

์‹œ๊ฐ„ ์ธก์ • AOP ๋“ฑ๋ก

package aop;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class TimeTraceAop {

    @Around("execution(* hello.hellospring..*(..))")
    public Object execute(ProceedingJoinPoint joinPoint) throws Throwable {
        long start = System.currentTimeMillis();
        System.out.println("START: " + joinPoint.toString());
        try {
            return joinPoint.proceed();
        } finally {
            long finish = System.currentTimeMillis();
            long timeMs = finish - start;
            System.out.println("END: " + joinPoint.toString() + " " + timeMs +
                    "ms");
        }
    }
}

 

ํšŒ์›๊ฐ€์ž…, ํšŒ์› ์กฐํšŒ๋“ฑ ํ•ต์‹ฌ ๊ด€์‹ฌ์‚ฌํ•ญ๊ณผ ์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๊ณตํ†ต ๊ด€์‹ฌ ์‚ฌํ•ญ์„ ๋ถ„๋ฆฌํ•œ๋‹ค.

์‹œ๊ฐ„์„ ์ธก์ •ํ•˜๋Š” ๋กœ์ง์„ ๋ณ„๋„์˜ ๊ณตํ†ต ๋กœ์ง์œผ๋กœ ๋งŒ๋“ค์—ˆ๋‹ค.
ํ•ต์‹ฌ ๊ด€์‹ฌ ์‚ฌํ•ญ์„ ๊น”๋”ํ•˜๊ฒŒ ์œ ์ง€ํ•  ์ˆ˜ ์žˆ๋‹ค.
๋ณ€๊ฒฝ์ด ํ•„์š”ํ•˜๋ฉด ์ด ๋กœ์ง๋งŒ ๋ณ€๊ฒฝํ•˜๋ฉด ๋œ๋‹ค.

์›ํ•˜๋Š” ์ ์šฉ ๋Œ€์ƒ์„ ์„ ํƒํ•  ์ˆ˜ ์žˆ๋‹ค

 

 

AOP ์ ์šฉ ์ „ ์˜์กด๊ด€๊ณ„

 

AOP ์ ์šฉ ํ›„ ์˜์กด๊ด€๊ณ„

 

AOP ์ ์šฉ ์ „ ์ „์ฒด ๊ทธ๋ฆผ

 

AOP ์ ์šฉ ํ›„ ์ „์ฒด ๊ทธ๋ฆผ

 

 

 

https://code-lab1.tistory.com/193

 

[Spring] AOP(Aspect Oriented Programming)๋ž€? ์Šคํ”„๋ง AOP๋ž€?

AOP (Aspect Oriented Programming)๋ž€? AOP๋Š” Aspect Oriented Programming์˜ ์•ฝ์ž๋กœ ๊ด€์  ์ง€ํ–ฅ ํ”„๋กœ๊ทธ๋ž˜๋ฐ์ด๋ผ๊ณ  ๋ถˆ๋ฆฐ๋‹ค. ๊ด€์  ์ง€ํ–ฅ์€ ์–ด๋–ค ๋กœ์ง์„ ๊ธฐ์ค€์œผ๋กœ ํ•ต์‹ฌ์ ์ธ ๊ด€์ , ๋ถ€๊ฐ€์ ์ธ ๊ด€์ ์œผ๋กœ ๋‚˜๋ˆ„์–ด์„œ ๋ณด๊ณ  ๊ทธ

code-lab1.tistory.com

 

์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)

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