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spring로 검색한 결과

등록일:2008-06-10 17:15:35
작성자:

제목:[AOP]StaticMethodMatcherPointcut을 사용한 Static Pointcut 예제

StaticMethodMatcherPointcut을 사용한 Static Pointcut 예제

package com.youngkun.aoptest.pointcut;

public class BeanOne {
   public void foo(){
   System.out.println("foo");
   }
   public void bar(){
   System.out.println("bar");
   }
}

package com.youngkun.aoptest.pointcut;

public class BeanTwo {

   public void foo(){
   System.out.println("foo");
   }
   public void bar(){
   System.out.println("bar");
   }

}

package com.youngkun.aoptest.pointcut;

import java.lang.reflect.Method;

import org.springframework.aop.ClassFilter;
import org.springframework.aop.support.StaticMethodMatcherPointcut;

public class SimpleStaticPointcut extends StaticMethodMatcherPointcut {

   //foo()메소드와 일치
   public boolean matches(Method method, Class cls) {
   return ("foo".equals(method.getName()));
   }

   //BeanOne 클래스와 일치
   public ClassFilter getClassFilter(){
   return new ClassFilter(){
   public boolean matches(Class cls){
   return(cls == BeanOne.class);
   }
   };
   }
}

package com.youngkun.aoptest.pointcut;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class SimpleAdvice implements MethodInterceptor {

   public Object invoke(MethodInvocation invocation) throws Throwable {
   System.out.println(">> Invoking " + invocation.getMethod().getName());
   Object retVal = invocation.proceed();
   System.out.println(">> Done");
   return retVal;

; }
}

package com.youngkun.aoptest.pointcut;

import org.aopalliance.aop.Advice;
import org.springframework.aop.Advisor;
import org.springframework.aop.Pointcut;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;

public class StaticPointcutExample {

   public static void main(String[] args) {
   BeanOne one = new BeanOne();
   BeanTwo two = new BeanTwo();

   BeanOne proxyOne;
   BeanTwo proxyTwo;

   //pointcut, advice, advisor 생성
   Pointcut pc = new SimpleStaticPointcut();
   Advice advice = new SimpleAdvice();
   Advisor advisor = new DefaultPointcutAdvisor(pc, advice);

   //BeanOne proxy 생성
   ProxyFactory pf = new ProxyFactory();
   pf.addAdvisor(advisor);
   pf.setTarget(one);
   proxyOne = (BeanOne)pf.getProxy();

   //BeanTwo proxy 생성
   pf = new ProxyFactory();
   pf.addAdvisor(advisor);
   pf.setTarget(two);
   proxyTwo = (BeanTwo)pf.getProxy();

   proxyOne.foo();
   proxyTwo.foo();

   proxyOne.bar();
   proxyTwo.bar();
   }

}

실행결과

붉은색 클래스와 메소드가 일치해서 advice 적용
파란색 클래스와 메소드가 일치하지 않아서 advice가 적용이 안됨
>> Invoking foo
foo
>> Done
foo
bar
bar

[출처] StaticMethodMatcherPointcut을 사용한 Static Pointcut 예제|작성자 kwlsgy