org.springframework.aop.aspectj.annotation.AspectProxyFactoryTests.java Source code

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Here is the source code for org.springframework.aop.aspectj.annotation.AspectProxyFactoryTests.java

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/*
 * 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.aop.aspectj.annotation;

import java.io.Serializable;
import java.util.Arrays;

import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.junit.Test;
import test.aop.PerThisAspect;

import org.springframework.util.SerializationTestUtils;

import static org.junit.Assert.*;

/**
 * @author Rob Harrop
 * @author Juergen Hoeller
 * @author Chris Beams
 */
public class AspectProxyFactoryTests {

    @Test(expected = IllegalArgumentException.class)
    public void testWithNonAspect() {
        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(new TestBean());
        proxyFactory.addAspect(TestBean.class);
    }

    @Test
    public void testWithSimpleAspect() throws Exception {
        TestBean bean = new TestBean();
        bean.setAge(2);
        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(bean);
        proxyFactory.addAspect(MultiplyReturnValue.class);
        ITestBean proxy = proxyFactory.getProxy();
        assertEquals("Multiplication did not occur", bean.getAge() * 2, proxy.getAge());
    }

    @Test
    public void testWithPerThisAspect() throws Exception {
        TestBean bean1 = new TestBean();
        TestBean bean2 = new TestBean();

        AspectJProxyFactory pf1 = new AspectJProxyFactory(bean1);
        pf1.addAspect(PerThisAspect.class);

        AspectJProxyFactory pf2 = new AspectJProxyFactory(bean2);
        pf2.addAspect(PerThisAspect.class);

        ITestBean proxy1 = pf1.getProxy();
        ITestBean proxy2 = pf2.getProxy();

        assertEquals(0, proxy1.getAge());
        assertEquals(1, proxy1.getAge());
        assertEquals(0, proxy2.getAge());
        assertEquals(2, proxy1.getAge());
    }

    @Test(expected = IllegalArgumentException.class)
    public void testWithInstanceWithNonAspect() throws Exception {
        AspectJProxyFactory pf = new AspectJProxyFactory();
        pf.addAspect(new TestBean());
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testSerializable() throws Exception {
        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(new TestBean());
        proxyFactory.addAspect(LoggingAspectOnVarargs.class);
        ITestBean proxy = proxyFactory.getProxy();
        assertTrue(proxy.doWithVarargs(MyEnum.A, MyOtherEnum.C));
        ITestBean tb = (ITestBean) SerializationTestUtils.serializeAndDeserialize(proxy);
        assertTrue(tb.doWithVarargs(MyEnum.A, MyOtherEnum.C));
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testWithInstance() throws Exception {
        MultiplyReturnValue aspect = new MultiplyReturnValue();
        int multiple = 3;
        aspect.setMultiple(multiple);

        TestBean target = new TestBean();
        target.setAge(24);

        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(target);
        proxyFactory.addAspect(aspect);

        ITestBean proxy = proxyFactory.getProxy();
        assertEquals(target.getAge() * multiple, proxy.getAge());

        ITestBean serializedProxy = (ITestBean) SerializationTestUtils.serializeAndDeserialize(proxy);
        assertEquals(target.getAge() * multiple, serializedProxy.getAge());
    }

    @Test(expected = IllegalArgumentException.class)
    public void testWithNonSingletonAspectInstance() throws Exception {
        AspectJProxyFactory pf = new AspectJProxyFactory();
        pf.addAspect(new PerThisAspect());
    }

    @Test // SPR-13328
    @SuppressWarnings("unchecked")
    public void testProxiedVarargsWithEnumArray() throws Exception {
        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(new TestBean());
        proxyFactory.addAspect(LoggingAspectOnVarargs.class);
        ITestBean proxy = proxyFactory.getProxy();
        assertTrue(proxy.doWithVarargs(MyEnum.A, MyOtherEnum.C));
    }

    @Test // SPR-13328
    @SuppressWarnings("unchecked")
    public void testUnproxiedVarargsWithEnumArray() throws Exception {
        AspectJProxyFactory proxyFactory = new AspectJProxyFactory(new TestBean());
        proxyFactory.addAspect(LoggingAspectOnSetter.class);
        ITestBean proxy = proxyFactory.getProxy();
        assertTrue(proxy.doWithVarargs(MyEnum.A, MyOtherEnum.C));
    }

    public interface ITestBean {

        int getAge();

        @SuppressWarnings("unchecked")
        <V extends MyInterface> boolean doWithVarargs(V... args);
    }

    @SuppressWarnings("serial")
    public static class TestBean implements ITestBean, Serializable {

        private int age;

        @Override
        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }

        @SuppressWarnings("unchecked")
        @Override
        public <V extends MyInterface> boolean doWithVarargs(V... args) {
            return true;
        }
    }

    public interface MyInterface {
    }

    public enum MyEnum implements MyInterface {

        A, B;
    }

    public enum MyOtherEnum implements MyInterface {

        C, D;
    }

    @Aspect
    @SuppressWarnings("serial")
    public static class LoggingAspectOnVarargs implements Serializable {

        @Around("execution(* doWithVarargs(*))")
        public Object doLog(ProceedingJoinPoint pjp) throws Throwable {
            LogFactory.getLog(LoggingAspectOnVarargs.class).debug(Arrays.asList(pjp.getArgs()));
            return pjp.proceed();
        }
    }

    @Aspect
    public static class LoggingAspectOnSetter {

        @Around("execution(* setAge(*))")
        public Object doLog(ProceedingJoinPoint pjp) throws Throwable {
            LogFactory.getLog(LoggingAspectOnSetter.class).debug(Arrays.asList(pjp.getArgs()));
            return pjp.proceed();
        }
    }
}

@Aspect
@SuppressWarnings("serial")
class MultiplyReturnValue implements Serializable {

    private int multiple = 2;

    public int invocations;

    public void setMultiple(int multiple) {
        this.multiple = multiple;
    }

    public int getMultiple() {
        return this.multiple;
    }

    @Around("execution(int *.getAge())")
    public Object doubleReturnValue(ProceedingJoinPoint pjp) throws Throwable {
        ++this.invocations;
        int result = (Integer) pjp.proceed();
        return result * this.multiple;
    }

}