Spring Tracing Aspect
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)
{
ApplicationContext ctx = new FileSystemXmlApplicationContext("build/springconfig.xml");
IBusinessLogic testObject = (IBusinessLogic) ctx.getBean("businesslogicbean");
testObject.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>
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()");
}
}
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