unable to call AOP method

[Rahul Shivsharan]

Performer.java,

package com.jal;

public class Performer{
	public Performer(){
		System.out.println(" Performer instantiated.... ");
	}
	
	public void perform() throws Exception{		
			boolean b = true;
			for(int j=0;j<20;j++){
				System.out.println(" I'm performing ");
				if(j > 13 && !b){
					throw new Exception(" I'm performing badly ");
				}
				Thread.sleep(500);
			}
	}
}

Audience.java

package com.jal;

public class Audience{
	
	public Audience(){
		System.out.println(" Audience instantiated... ");
	}
	
	public void takeSeats(){
		System.out.println(" Please take a seat... ");
	}
	
	public void turnOffCellPhones(){
		System.out.println(" Please turn off your Cell phones ");
	}
	
	public void applause(){
		for(int i=1;i<=20;i++){
			System.out.println(" CLAP CLAP CLAP CLAP CLAP CLAP CLAP CLAP CLAP CLAP CLAP ");
		}		
	}
	
	public void demandRefund(){
		for(int j=0;j<20;j++){
			System.out.println(" I want my money back ");
		}		
	}
}

AudienceAdvice.java

package com.jal;
import org.springframework.aop.*;
import java.lang.reflect.*;

public class AudienceAdvice implements MethodBeforeAdvice,AfterReturningAdvice , ThrowsAdvice {
	
	public Audience audience;
	
	public void setAudience(Audience audience){
		this.audience = audience;
	}
	
	public Audience getAudience(){
		return audience;
	}
	
	public AudienceAdvice(){
		System.out.println(" AudienceAdvice instantiated.... ");
	}
	
	@Override
	public void before(Method method, Object[] args, Object target)  throws Throwable {
		System.out.println(" METHODS-BEFORE-ADVICE ");
		this.audience.takeSeats();
		this.audience.turnOffCellPhones();
	}
	
	@Override
	public void afterReturning(Object returnValue, Method method, Object[] args, Object target)  throws Throwable{
		System.out.println(" METHODS-AFTER-ADVICE ");
		this.audience.applause();
	}
	
	
	public void afterThrowing(Exception exception){
		System.out.println(" AFTER-THROWING ");
		System.out.println(exception.getMessage());
		this.audience.demandRefund();
	}
	
}

bean-cfg-Two.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"
		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">
		
		<bean id="performer-inj" class="com.jal.Performer" scope="prototype" />
		<bean id="audience-inj" class="com.jal.Audience" scope="prototype" />
		
		<bean id="audienceAdvice-inj" class="com.jal.AudienceAdvice" scope="prototype">
			<property name="audience" ref="audience-inj" />
		</bean>	
		
		
		<bean id="performance-pointcut-inj" class="org.springframework.aop.support.JdkRegexpMethodPointcut">
			<property name="pattern" value=".*perform" />
		</bean>	
		
		
		<bean id="audienceAdvisor-inj" class="org.springframework.aop.support.DefaultPointcutAdvisor" >
			<property name="advice" ref="audienceAdvice-inj" />
			<property name="pointcut" ref="performance-pointcut-inj" />
		</bean>	
</beans>							

MainPractise24.java

package com.main;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.ApplicationContext; 
import com.jal.*;


public class MainPractise24{
	public static void main(String [] args){
		ApplicationContext applicationContext = null;
		Performer obj = null;
		boolean bb = (args != null && args.length > 0 && args[0].equals("true")) ? true : false; 
		try{
			applicationContext = new ClassPathXmlApplicationContext("bean-cfg-Two.xml");			
			obj = (Performer) applicationContext.getBean("performer-inj");					
			obj.perform();
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}

What i am expecting is,
whenever i call perform() method of Performer class, the takeSeats() and turnOffCellPhones() method of Audience class should be called first,
and after execution of method perform(), applause() method of Audience class should be called

but no AOP is happening, the perform method is getting called straight,


even if i changed the eml file to

<?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"
		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">
		
		<bean id="performer-inj" class="com.jal.Performer" scope="prototype" />
		<bean id="audience-inj" class="com.jal.Audience" scope="prototype" />
		
		<bean id="audienceAdvice-inj" class="com.jal.AudienceAdvice" scope="prototype">
			<property name="audience" ref="audience-inj" />
		</bean>	
		
		
		<bean id="audienceAdvisor-inj" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor" >
			<property name="advice" ref="audienceAdvice-inj" />
			<property name="pattern" value=".*perform" />
		</bean>
</beans>	


than too it doesnt work,

do iam missing something,

wether i am not using the proper regex,

please help me or give me a hint						

[Rahul Shivsharan]

Guy's please help me out on this,

i know this question is discussed in this forum,
but that didn't helped me out

Please reply back

[Rishi Shehrawat]

As per provided files you are using Spring 2.0 configuration, you should Spring 3.0. Please download source code for Spring In Action Third edition & refer to the springidol-annotation project.

http://www.manning.com/walls4/sia3-code.zip

[Rahul Shivsharan]

i got it,
one more configuration was remaining in the xml,
my edited xml file

<?xml version="1.0" encoding="UTF-8"?>
<beans 	xmlns="http://www.springframework.org/schema/beans"
		xmlns:p="http://www.springframework.org/schema/p"
		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		xmlns:context="http://www.springframework.org/schema/context"
		xmlns:aop="http://www.springframework.org/schema/aop"
		xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
							http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
							http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

		<bean id="performer-inj" class="com.jal.Performer" scope="prototype" />
		<bean id="audience-inj" class="com.jal.Audience" scope="prototype" />
		
		<bean id="audienceAdvice-inj" class="com.jal.AudienceAdvice" scope="prototype">
			<property name="audience" ref="audience-inj" />
		</bean>	
		<bean id="performance-pointcut-inj" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
			<property name="pattern" value=".*perform" />
		</bean>	
		
		<bean id="audienceAdvisor-inj-1" class="org.springframework.aop.support.DefaultPointcutAdvisor" scope="prototype">			
			<property name="pointcut" ref="performance-pointcut-inj" />
			<property name="advice" ref="audienceAdvice-inj" />
		</bean>		
        
   <bean id="aa-inj" class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" scope="singleton">			
			<property name="advisorBeanNamePrefix" value="audienceAdvice-inj-1" />
		</bean>
</beans>

A proxy creation is also required,

now the above example will run fine with Spring 2.0 config

[Mark Spritzler]

We still recommend that you use the latest Spring version. That way you did it is about 5 years old. Today it is so much easier.

Mark

[Rahul Shivsharan]

so mark should i start reading "Spring 3.0 In Action" ?

[Mark Spritzler]

Rahul Shivsharan wrote:so mark should i start reading "Spring 3.0 In Action" ?

It is a great book to help learn Spring and the latest version.

Mark