/*
* Copyright 2002-2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.context.annotation.configuration;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.junit.Test;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ConfigurationClassPostProcessor;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.tests.sample.beans.TestBean;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
/**
* System tests covering use of AspectJ {@link Aspect}s in conjunction with {@link Configuration} classes.
* {@link Bean} methods may return aspects, or Configuration classes may themselves be annotated with Aspect.
* In the latter case, advice methods are declared inline within the Configuration class. This makes for a
* particularly convenient syntax requiring no extra artifact for the aspect.
*
*
Currently it is assumed that the user is bootstrapping Configuration class processing via XML (using
* annotation-config or component-scan), and thus will also use {@code } to enable
* processing of the Aspect annotation.
*
* @author Chris Beams
* @author Juergen Hoeller
*/
public class ConfigurationClassAspectIntegrationTests {
@Test
public void aspectAnnotatedConfiguration() {
assertAdviceWasApplied(AspectConfig.class);
}
@Test
public void configurationIncludesAspect() {
assertAdviceWasApplied(ConfigurationWithAspect.class);
}
private void assertAdviceWasApplied(Class> configClass) {
DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
new XmlBeanDefinitionReader(factory).loadBeanDefinitions(
new ClassPathResource("aspectj-autoproxy-config.xml", ConfigurationClassAspectIntegrationTests.class));
GenericApplicationContext ctx = new GenericApplicationContext(factory);
ctx.addBeanFactoryPostProcessor(new ConfigurationClassPostProcessor());
ctx.registerBeanDefinition("config", new RootBeanDefinition(configClass));
ctx.refresh();
TestBean testBean = ctx.getBean("testBean", TestBean.class);
assertThat(testBean.getName(), equalTo("name"));
testBean.absquatulate();
assertThat(testBean.getName(), equalTo("advisedName"));
}
@Test
public void withInnerClassAndLambdaExpression() {
ApplicationContext ctx = new AnnotationConfigApplicationContext(Application.class, CountingAspect.class);
ctx.getBeansOfType(Runnable.class).forEach((k, v) -> v.run());
assertEquals(2, ctx.getBean(CountingAspect.class).count);
}
@Aspect
@Configuration
static class AspectConfig {
@Bean
public TestBean testBean() {
return new TestBean("name");
}
@Before("execution(* org.springframework.tests.sample.beans.TestBean.absquatulate(..)) && target(testBean)")
public void touchBean(TestBean testBean) {
testBean.setName("advisedName");
}
}
@Configuration
static class ConfigurationWithAspect {
@Bean
public TestBean testBean() {
return new TestBean("name");
}
@Bean
public NameChangingAspect nameChangingAspect() {
return new NameChangingAspect();
}
}
@Aspect
static class NameChangingAspect {
@Before("execution(* org.springframework.tests.sample.beans.TestBean.absquatulate(..)) && target(testBean)")
public void touchBean(TestBean testBean) {
testBean.setName("advisedName");
}
}
@Configuration
@EnableAspectJAutoProxy
public static class Application {
@Bean
Runnable fromInnerClass() {
return new Runnable() {
@Override
public void run() {
}
};
}
@Bean
Runnable fromLambdaExpression() {
return () -> {
};
}
}
@Aspect
public static class CountingAspect {
public int count = 0;
@After("execution(* java.lang.Runnable.*(..))")
public void after(JoinPoint joinPoint) {
count++;
}
}
}