File: IBusinessLogic.java
public interface IBusinessLogic
{
public void foo();
public void bar() throws BusinessLogicException;
}
File: LoggingThrowsAdvice.java
import org.springframework.aop.ThrowsAdvice;
import java.lang.reflect.Method;
public class LoggingThrowsAdvice implements ThrowsAdvice
{
public void afterThrowing(Method method, Object[] args, Object target, Throwable subclass)
{
System.out.println("Logging that a " + subclass + "Exception was thrown.");
}
}
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 methods of the bean
testObject.foo();
try
{
testObject.bar();
}
catch(BusinessLogicException ble)
{
System.out.println("Caught BusinessLogicException");
}
}
}
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()");
}
public void bar() throws BusinessLogicException
{
System.out.println("Inside BusinessLogic.bar()");
throw new BusinessLogicException();
}
}
File: BusinessLogicException.java
public class BusinessLogicException extends Exception
{
}
File: springconfig.xml
IBusinessLogic
tracingBeforeAdvisor
tracingAfterAdvisor
loggingThrowsAdvisor
.*
.*
.*