고급편/섹션11: 예제 만들기 (#21)

섹션11: 스프링 AOP - 포인트컷

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/member/MemberService.java

@@ -0,0 +1,5 @@
+package hello.aop.member;
+
+public interface MemberService {
+    String hello(String param);
+}

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/member/MemberServiceImpl.java

@@ -0,0 +1,19 @@
+package hello.aop.member;
+
+import hello.aop.member.annotation.ClassAop;
+import hello.aop.member.annotation.MethodAop;
+import org.springframework.stereotype.Component;
+
+@ClassAop
+@Component
+public class MemberServiceImpl implements MemberService {
+    @Override
+    @MethodAop("test value")
+    public String hello(final String param) {
+        return "ok";
+    }
+
+    public String internal(String param) {
+        return "ok";
+    }
+}

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/member/annotation/ClassAop.java

@@ -0,0 +1,11 @@
+package hello.aop.member.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface ClassAop {
+}

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/member/annotation/MethodAop.java

@@ -0,0 +1,12 @@
+package hello.aop.member.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface MethodAop {
+    String value();
+}

스프링 로드맵5 고급편/aop/src/test/java/hello/aop/pointcut/ExecutionTest.java

@@ -0,0 +1,30 @@
+package hello.aop.pointcut;
+
+import hello.aop.member.MemberServiceImpl;
+import java.lang.reflect.Method;
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.aop.aspectj.AspectJExpressionPointcut;
+
+@Slf4j
+public class ExecutionTest {
+
+    AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
+    Method helloMethod;
+
+    @BeforeEach
+    public void init() throws NoSuchMethodException {
+        // 테스트에서 실행할 수 있게 getMethod()를 추출해서 helloMethod에 보관
+        helloMethod = MemberServiceImpl.class.getMethod("hello", String.class);
+    }
+
+    @Test
+    void printMethod() {
+
+        // 앞으로 알아볼 execution으로 시작하는 포인트컷 표현식은 이 메서드 정보를 매칭해서 포인트컷 대상을 찾아낸다.
+        // execution(* ..package..Class.)
+        // public java.lang.String hello.aop.member.MemberServiceImpl.hello(java.lang.String)
+        log.info("helloMethod={}", helloMethod);
+    }
+}