27-Writing-Our-First-Aspect-Part-2

AopMain.java

package org.yash.watertechsol;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.yash.watertechsol.service.ShapeService;

public class AopMain {

                public static void main(String args[]){

                                ApplicationContext ctx = new ClassPathXmlApplicationContext("spring.xml");

                               

                                ShapeService shapeService = ctx.getBean("shapeService", ShapeService.class);

                                System.out.println(shapeService.getCircle().getName());

                }

}

Circle.java

package org.yash.watertechsol.model;

public class Circle {

      private String name;

      public void setName(String name) {

            this.name = name;

      }

      public String getName() {

            return name;

      }

}

Triangle.java

package org.yash.watertechsol.model;

public class Triangle {

      private String name;

      public void setName(String name) {

            this.name = name;

      }

      public String getName() {

            return name;

      }

}

ShapeService.java

package org.yash.watertechsol.service;

import org.yash.watertechsol.model.Circle;

import org.yash.watertechsol.model.Triangle;

public class ShapeService {

                private Triangle triangle;

                private Circle circle;

               

                public Triangle getTriangle() {

                                return triangle;

                }

                public void setTriangle(Triangle triangle) {

                                this.triangle = triangle;

                }

                public Circle getCircle() {

                                return circle;

                }

                public void setCircle(Circle circle) {

                                this.circle = circle;

                }

}

LoggingAspect.java

package org.yash.watertechsol.aspect;

import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Before;

@Aspect

public class LoggingAspect {

                               

                                @Before("execution(public String getName())")

                                public void LoggingAdvice(){

                                                System.out.println("Advice run. Get method called");

                                }

}

Spring.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

            xmlns:aop="http://www.springframework.org/schema/aop"

            xmlns:context="http://www.springframework.org/schema/context"

            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd

                        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd

                        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">

      <aop:aspectj-autoproxy />

      <bean id="triangle" class="org.yash.watertechsol.model.Triangle">

            <property name="name" value="Triangle Name"></property>

      </bean>

      <bean id="circle" class="org.yash.watertechsol.model.Circle">

            <property name="name" value="Circle Name"></property>

      </bean>

      <bean id="shapeService" class="org.yash.watertechsol.service.ShapeService" autowire="byName"/>

      <bean id="loggingAspect" class="org.yash.watertechsol.aspect.LoggingAspect"/>

     

</beans>