package com.test.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.aop.support.AopUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;

@RunWith(SpringRunner.class)
@ContextConfiguration(loader= AnnotationConfigContextLoader.class)
public class AspectTest {
    @Autowired Runnable main;

    @Test
    public void checkOrder() throws Exception {
        System.out.println(AopUtils.isAopProxy(main));
        main.run();
    }

    @Configuration
    @EnableAspectJAutoProxy
    static public class TestContext {

        @Bean
        public Runnable main() {
            return new Runnable() {
                public void run() {
                    System.out.println("target executed");
                }
            };
        }

        @Aspect
        @Order(-1)
        @Component
        public static class OrderMinus1Aspect {
            @Before("execution(void *.run())")
            public void printOrder(JoinPoint jp) {
                System.out.println("order -1");
            }
        }

        @Aspect
        @Order(0)
        @Component
        public static class Order0Aspect {
            @Before("execution(void *.run())")
            public void printOrder(JoinPoint jp) {
                System.out.println("order 0");
            }
        }
        @Aspect
        @Order(1)
        @Component
        public static class Order1Aspect {
            @Before("execution(void *.run())")
            public void printOrder(JoinPoint jp) {
                System.out.println("order 1");
            }
        }
        @Aspect
        @Order(2)
        @Component
        public static class Order2Aspect {
            @Before("execution(void *.run())")
            public void printOrder(JoinPoint jp) {
                System.out.println("order 2");
            }
        }
    }
}