Composable Pointcut Example

/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/

//////////////////////////////////////////////////////////////////////////////////
import java.lang.reflect.Method;

import org.springframework.aop.MethodBeforeAdvice;

public class SimpleBeforeAdvice implements MethodBeforeAdvice {


    public void before(Method method, Object[] args, Object target)
            throws Throwable {
        System.out.println("Before method: " + method);
    }

}


//////////////////////////////////////////////////////////////////////////////////
public class SampleBean {

    public String getName() {
        return "Rob Harrop";
    }
    
    public void setName(String name) {
        
    }
    
    public int getAge() {
        return 100;
    }
}



//////////////////////////////////////////////////////////////////////////////////
import java.lang.reflect.Method;

import org.springframework.aop.Advisor;
import org.springframework.aop.ClassFilter;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.ComposablePointcut;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.StaticMethodMatcher;

public class ComposablePointcutExample {

    public static void main(String[] args) {
        // create target
        SampleBean target = new SampleBean();

        
        ComposablePointcut pc = new ComposablePointcut(ClassFilter.TRUE,
                new GetterMethodMatcher());

        System.out.println("Test 1");
        SampleBean proxy = getProxy(pc, target);
        testInvoke(proxy);

        System.out.println("Test 2");
        pc.union(new SetterMethodMatcher());
        proxy = getProxy(pc, target);
        testInvoke(proxy);
        
        System.out.println("Test 3");
        pc.intersection(new GetAgeMethodMatcher());
        proxy = getProxy(pc, target);
        testInvoke(proxy);

    }

    private static SampleBean getProxy(ComposablePointcut pc, SampleBean target) {
        // create the advisor

        Advisor advisor = new DefaultPointcutAdvisor(pc,
                new SimpleBeforeAdvice());

        // create the proxy
        ProxyFactory pf = new ProxyFactory();
        pf.setTarget(target);
        pf.addAdvisor(advisor);

        return (SampleBean) pf.getProxy();
    }

    private static void testInvoke(SampleBean proxy) {
        proxy.getAge();
        proxy.getName();
        proxy.setName("Rob Harrop");
    }

    private static class GetterMethodMatcher extends StaticMethodMatcher {

        public boolean matches(Method method, Class cls) {
            return (method.getName().startsWith("get"));
        }

    }

    private static class GetAgeMethodMatcher extends StaticMethodMatcher {
        public boolean matches(Method method, Class cls) {
            return "getAge".equals(method.getName());
        }
    }
    
    private static class SetterMethodMatcher extends StaticMethodMatcher {

        public boolean matches(Method method, Class cls) {
            return (method.getName().startsWith("set"));
        }

    }
}

ComposablePointcutExample.zip( 1,482 k)

1.	Profiling Example
2.	Introduction Config Example
3.	Security Example
4.	Simple After Returning Advice
5.	Simple Before Advice
6.	Simple Throws Advice
7.	Control Flow Example
8.	Dynamic Pointcut Example
9.	Hello World With Pointcut
10.	Spring Aspect Introduction Example
11.	Static Pointcut Example
12.	Name Pointcut Example
13.	Name Pointcut Using Advisor
14.	Proxy Factory Bean Example
15.	Proxy Perf Test
16.	Regexp Pointcut Example
17.	After Advice Example
18.	AspectJ Example from Pro Spring
19.	Aspect Hello World Example

Composable Pointcut Example : Spring Aspect « Spring « Java

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