package com.thereisnospon.spring.demo.course.imp.c004_aop;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import
 
 org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
/**
 * 如果增強在同一個切面類中宣告，則依照增強在切面類中定義的順序進行織入；
 *
 * 如果增強位於不同的切面類中，且這些切面類都實現了org.springframework.core.Ordered介面，則由介面方法的順序號決定（順序號小的先織入）；
 *
 * 如果增強位於不同的切面類中，且這些切面類沒有實現org.springframework.core.Ordered介面，織入的順序是不確定的。
 */
 

public class T002_Aop02_TargetThis2 {

    public static class BookService {
        public void doService() {
            System.out.println("doService");
        }
    }

    @Aspect
    @Order(value = 2)
    public static class BookAspect {
        @Before("within(com.thereisnospon.spring.demo.course.imp.c004_aop.T002_Aop02_TargetThis2.BookService)"
 
)
        public void be() {
            System.out.println("BookAspect");
        }
    }

    @Aspect
    public static class BookAspect2 implements Ordered {

        @Before("within(com.thereisnospon.spring.demo.course.imp.c004_aop.T002_Aop02_TargetThis2.BookService)")
        public void be() {
            System.out.println("BookAspect2");
        }

        @Override
        public int getOrder() {
            return 1;
        }
    }

    @Configuration
    @EnableAspectJAutoProxy(proxyTargetClass = true)
    public static class Config {
        @Bean
        public BookAspect bookAspect() {
            return new BookAspect();
        }

        @Bean
        public BookAspect2 bookAspect2() {
            return new BookAspect2();
        }

        @Bean
        public BookService bookService() {
            return new BookService();
        }
    }

    public static void test1() {
        ApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
        BookService bookService = (BookService) context.getBean("bookService");
        bookService.doService();
    }

    public static void main(String[] args) {
        test1();
        /*輸出
        BookAspect2
        BookAspect
        doService
         */
    }
}