Spring Tracing Aspect : Spring Aspect « Spring « Java Tutorial






File: IBusinessLogic.java

public interface IBusinessLogic
{
   public void foo();
}

File: MainApplication.java

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

public class MainApplication
{
   public static void main(String [] args)
   {
      // Read the configuration file
      ApplicationContext ctx
          = new FileSystemXmlApplicationContext("build/springconfig.xml");

      //Instantiate an object
      IBusinessLogic testObject = (IBusinessLogic) ctx.getBean("businesslogicbean");

      //Execute the public method of the bean (the test)
      testObject.foo();
   }
}

File: TracingAfterAdvice.java

import java.lang.reflect.Method;
import org.springframework.aop.AfterReturningAdvice;

public class TracingAfterAdvice implements AfterReturningAdvice
{
   public void afterReturning(Object object, Method m, Object[] args, Object target) throws Throwable
   {
       System.out.println("Hello world! (by " + this.getClass().getName() + ")");
   }
}

File: TracingBeforeAdvice.java

import java.lang.reflect.Method;
import org.springframework.aop.MethodBeforeAdvice;

public class TracingBeforeAdvice implements MethodBeforeAdvice
{
   public void before(Method m, Object[] args, Object target) throws Throwable
   {
      System.out.println("Hello world! (by " + this.getClass().getName() + ")");
   }
}

File: BusinessLogic.java

public class BusinessLogic implements IBusinessLogic
{
     public void foo() 
     {
       System.out.println("Inside BusinessLogic.foo()");
     }
}

File: springconfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC  "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

  <!--CONFIG-->
  <bean id="businesslogicbean"
  class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="proxyInterfaces">
      <value>IBusinessLogic</value>
    </property>
    <property name="target">
      <ref local="beanTarget"/>
    </property>
    <property name="interceptorNames">
      <list>
        <value>theTracingBeforeAdvisor</value>
        <value>theTracingAfterAdvisor</value>
      </list>
    </property>
  </bean>

  <!--CLASS-->
  <bean id="beanTarget"
  class="BusinessLogic"/>

  <!--ADVISOR-->
  <!--Note: An advisor assembles pointcuts and advice-->
  <bean id="theTracingBeforeAdvisor"
  class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
    <property name="advice">
      <ref local="theTracingBeforeAdvice"/>
    </property>
    <property name="pattern">
      <value>.*</value>
    </property>
  </bean>
  
  <!--ADVISOR-->
  <!--Note: An advisor assembles pointcuts and advice-->
  <bean id="theTracingAfterAdvisor"
  class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
    <property name="advice">
      <ref local="theTracingAfterAdvice"/>
    </property>
    <property name="pattern">
      <value>.*</value>
    </property>
  </bean>

  <!--ADVICE-->
  <bean id="theTracingBeforeAdvice"
  class="TracingBeforeAdvice"/>
  <bean id="theTracingAfterAdvice"
  class="TracingAfterAdvice"/>
</beans>
  Download:  Spring-SpringTracingAspect.zip( 1,538 k)








28.50.Spring Aspect
28.50.1.Spring Tracing Aspect
28.50.2.Spring Aspect Logging
28.50.3.AspectJ Expression Pointcut
28.50.4.AspectJ AutoProxy
28.50.5.Aspect Filter
28.50.6.Aspect Annotation Pointcut Around After
28.50.7.Aspect Annotation
28.50.8.AOP Annotation
28.50.9.Annotation Scope
28.50.10.Spring AOP Examples