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MethodInvocationProceedingJoinPointTests.java
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MethodInvocationProceedingJoinPointTests.java
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/*
* Copyright 2002-2024 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
*
* https://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;
import java.io.IOException;
import java.util.Arrays;
import java.util.concurrent.atomic.AtomicInteger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.JoinPoint.StaticPart;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.reflect.MethodSignature;
import org.aspectj.lang.reflect.SourceLocation;
import org.aspectj.runtime.reflect.Factory;
import org.junit.jupiter.api.Test;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.framework.AopContext;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.interceptor.ExposeInvocationInterceptor;
import org.springframework.aop.support.AopUtils;
import org.springframework.beans.testfixture.beans.ITestBean;
import org.springframework.beans.testfixture.beans.TestBean;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
/**
* @author Rod Johnson
* @author Chris Beams
* @author Ramnivas Laddad
* @since 2.0
*/
class MethodInvocationProceedingJoinPointTests {
@Test
void testingBindingWithJoinPoint() {
assertThatIllegalStateException().isThrownBy(AbstractAspectJAdvice::currentJoinPoint);
}
@Test
void testingBindingWithProceedingJoinPoint() {
assertThatIllegalStateException().isThrownBy(AbstractAspectJAdvice::currentJoinPoint);
}
@Test
void testCanGetMethodSignatureFromJoinPoint() {
final Object raw = new TestBean();
// Will be set by advice during a method call
final int newAge = 23;
ProxyFactory pf = new ProxyFactory(raw);
pf.setExposeProxy(true);
pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
AtomicInteger depth = new AtomicInteger();
pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();
assertThat(jp.toString()).as("Method named in toString").contains(method.getName());
// Ensure that these don't cause problems
jp.toShortString();
jp.toLongString();
assertThat(AbstractAspectJAdvice.currentJoinPoint().getTarget()).isSameAs(target);
assertThat(AopUtils.isAopProxy(AbstractAspectJAdvice.currentJoinPoint().getTarget())).isFalse();
ITestBean thisProxy = (ITestBean) AbstractAspectJAdvice.currentJoinPoint().getThis();
assertThat(AopUtils.isAopProxy(AbstractAspectJAdvice.currentJoinPoint().getThis())).isTrue();
assertThat(thisProxy).isNotSameAs(target);
// Check getting again doesn't cause a problem
assertThat(AbstractAspectJAdvice.currentJoinPoint().getThis()).isSameAs(thisProxy);
// Try reentrant call--will go through this advice.
// Be sure to increment depth to avoid infinite recursion
if (depth.getAndIncrement() == 0) {
// Check that toString doesn't cause a problem
thisProxy.toString();
// Change age, so this will be returned by invocation
thisProxy.setAge(newAge);
assertThat(thisProxy.getAge()).isEqualTo(newAge);
}
assertThat(thisProxy).isSameAs(AopContext.currentProxy());
assertThat(raw).isSameAs(target);
assertThat(AbstractAspectJAdvice.currentJoinPoint().getSignature().getName()).isSameAs(method.getName());
assertThat(AbstractAspectJAdvice.currentJoinPoint().getSignature().getModifiers()).isEqualTo(method.getModifiers());
MethodSignature msig = (MethodSignature) AbstractAspectJAdvice.currentJoinPoint().getSignature();
assertThat(AbstractAspectJAdvice.currentJoinPoint().getSignature()).as("Return same MethodSignature repeatedly").isSameAs(msig);
assertThat(AbstractAspectJAdvice.currentJoinPoint()).as("Return same JoinPoint repeatedly").isSameAs(AbstractAspectJAdvice.currentJoinPoint());
assertThat(msig.getDeclaringType()).isEqualTo(method.getDeclaringClass());
assertThat(Arrays.equals(method.getParameterTypes(), msig.getParameterTypes())).isTrue();
assertThat(msig.getReturnType()).isEqualTo(method.getReturnType());
assertThat(Arrays.equals(method.getExceptionTypes(), msig.getExceptionTypes())).isTrue();
msig.toLongString();
msig.toShortString();
});
ITestBean itb = (ITestBean) pf.getProxy();
// Any call will do
assertThat(itb.getAge()).as("Advice reentrantly set age").isEqualTo(newAge);
}
@Test
void testCanGetSourceLocationFromJoinPoint() {
final Object raw = new TestBean();
ProxyFactory pf = new ProxyFactory(raw);
pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
SourceLocation sloc = AbstractAspectJAdvice.currentJoinPoint().getSourceLocation();
assertThat(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation()).as("Same source location must be returned on subsequent requests").isEqualTo(sloc);
assertThat(sloc.getWithinType()).isEqualTo(TestBean.class);
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(sloc::getLine);
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(sloc::getFileName);
});
ITestBean itb = (ITestBean) pf.getProxy();
// Any call will do
itb.getAge();
}
@Test
void testCanGetStaticPartFromJoinPoint() {
final Object raw = new TestBean();
ProxyFactory pf = new ProxyFactory(raw);
pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
StaticPart staticPart = AbstractAspectJAdvice.currentJoinPoint().getStaticPart();
assertThat(AbstractAspectJAdvice.currentJoinPoint().getStaticPart()).as("Same static part must be returned on subsequent requests").isEqualTo(staticPart);
assertThat(staticPart.getKind()).isEqualTo(ProceedingJoinPoint.METHOD_EXECUTION);
assertThat(staticPart.getSignature()).isSameAs(AbstractAspectJAdvice.currentJoinPoint().getSignature());
assertThat(staticPart.getSourceLocation()).isEqualTo(AbstractAspectJAdvice.currentJoinPoint().getSourceLocation());
});
ITestBean itb = (ITestBean) pf.getProxy();
// Any call will do
itb.getAge();
}
@Test
void toShortAndLongStringFormedCorrectly() {
final Object raw = new TestBean();
ProxyFactory pf = new ProxyFactory(raw);
pf.addAdvisor(ExposeInvocationInterceptor.ADVISOR);
pf.addAdvice((MethodBeforeAdvice) (method, args, target) -> {
// makeEncSJP, although meant for computing the enclosing join point,
// it serves our purpose here
StaticPart aspectJVersionJp = Factory.makeEncSJP(method);
JoinPoint jp = AbstractAspectJAdvice.currentJoinPoint();
assertThat(jp.getSignature().toLongString()).isEqualTo(aspectJVersionJp.getSignature().toLongString());
assertThat(jp.getSignature().toShortString()).isEqualTo(aspectJVersionJp.getSignature().toShortString());
assertThat(jp.getSignature().toString()).isEqualTo(aspectJVersionJp.getSignature().toString());
assertThat(jp.toLongString()).isEqualTo(aspectJVersionJp.toLongString());
assertThat(jp.toShortString()).isEqualTo(aspectJVersionJp.toShortString());
assertThat(jp.toString()).isEqualTo(aspectJVersionJp.toString());
});
ITestBean itb = (ITestBean) pf.getProxy();
itb.getAge();
itb.setName("foo");
itb.getDoctor();
itb.getStringArray();
itb.getSpouse();
itb.setSpouse(new TestBean());
try {
itb.unreliableFileOperation();
}
catch (IOException ex) {
// we don't really care...
}
}
}