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This commit is contained in:
Juergen Hoeller
2018-08-09 02:56:56 +02:00
parent 4b30fe2b44
commit 45598ca53a
2 changed files with 67 additions and 65 deletions
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103
spring-aop/src/main/java/org/springframework/aop/aspectj/annotation/InstantiationModelAwarePointcutAdvisorImpl.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2015 the original author or authors.
* Copyright 2002-2018 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.
@@ -109,14 +109,40 @@ class InstantiationModelAwarePointcutAdvisorImpl
/**
* The pointcut for Spring AOP to use. Actual behaviour of the pointcut will change
* depending on the state of the advice.
* The pointcut for Spring AOP to use.
* Actual behaviour of the pointcut will change depending on the state of the advice.
*/
@Override
public Pointcut getPointcut() {
return this.pointcut;
}
@Override
public boolean isLazy() {
return this.lazy;
}
@Override
public synchronized boolean isAdviceInstantiated() {
return (this.instantiatedAdvice != null);
}
/**
* Lazily instantiate advice if necessary.
*/
@Override
public synchronized Advice getAdvice() {
if (this.instantiatedAdvice == null) {
this.instantiatedAdvice = instantiateAdvice(this.declaredPointcut);
}
return this.instantiatedAdvice;
}
private Advice instantiateAdvice(AspectJExpressionPointcut pcut) {
return this.aspectJAdvisorFactory.getAdvice(this.aspectJAdviceMethod, pcut,
this.aspectInstanceFactory, this.declarationOrder, this.aspectName);
}
/**
* This is only of interest for Spring AOP: AspectJ instantiation semantics
* are much richer. In AspectJ terminology, all a return of {@code true}
@@ -134,33 +160,6 @@ class InstantiationModelAwarePointcutAdvisorImpl
return this.aspectInstanceFactory.getAspectMetadata();
}
/**
* Lazily instantiate advice if necessary.
*/
@Override
public synchronized Advice getAdvice() {
if (this.instantiatedAdvice == null) {
this.instantiatedAdvice = instantiateAdvice(this.declaredPointcut);
}
return this.instantiatedAdvice;
}
@Override
public boolean isLazy() {
return this.lazy;
}
@Override
public synchronized boolean isAdviceInstantiated() {
return (this.instantiatedAdvice != null);
}
private Advice instantiateAdvice(AspectJExpressionPointcut pcut) {
return this.aspectJAdvisorFactory.getAdvice(this.aspectJAdviceMethod, pcut,
this.aspectInstanceFactory, this.declarationOrder, this.aspectName);
}
public MetadataAwareAspectInstanceFactory getAspectInstanceFactory() {
return this.aspectInstanceFactory;
}
@@ -213,33 +212,26 @@ class InstantiationModelAwarePointcutAdvisorImpl
}
else {
switch (aspectJAnnotation.getAnnotationType()) {
case AtPointcut:
case AtAround:
this.isBeforeAdvice = false;
this.isAfterAdvice = false;
break;
case AtBefore:
this.isBeforeAdvice = true;
this.isAfterAdvice = false;
break;
case AtAfter:
case AtAfterReturning:
case AtAfterThrowing:
this.isBeforeAdvice = false;
this.isAfterAdvice = true;
this.isBeforeAdvice = false;
break;
case AtAround:
case AtPointcut:
this.isAfterAdvice = false;
this.isBeforeAdvice = false;
break;
case AtBefore:
this.isAfterAdvice = false;
this.isBeforeAdvice = true;
}
}
}
@Override
public String toString() {
return "InstantiationModelAwarePointcutAdvisor: expression [" + getDeclaredPointcut().getExpression() +
"]; advice method [" + this.aspectJAdviceMethod + "]; perClauseKind=" +
this.aspectInstanceFactory.getAspectMetadata().getAjType().getPerClause().getKind();
}
private void readObject(ObjectInputStream inputStream) throws IOException, ClassNotFoundException {
inputStream.defaultReadObject();
try {
@@ -250,11 +242,18 @@ class InstantiationModelAwarePointcutAdvisorImpl
}
}
@Override
public String toString() {
return "InstantiationModelAwarePointcutAdvisor: expression [" + getDeclaredPointcut().getExpression() +
"]; advice method [" + this.aspectJAdviceMethod + "]; perClauseKind=" +
this.aspectInstanceFactory.getAspectMetadata().getAjType().getPerClause().getKind();
}
/**
* Pointcut implementation that changes its behaviour when the advice is instantiated.
* Note that this is a <i>dynamic</i> pointcut. Otherwise it might
* be optimized out if it does not at first match statically.
* Note that this is a <i>dynamic</i> pointcut; otherwise it might be optimized out
* if it does not at first match statically.
*/
private class PerTargetInstantiationModelPointcut extends DynamicMethodMatcherPointcut {
@@ -264,8 +263,9 @@ class InstantiationModelAwarePointcutAdvisorImpl
private LazySingletonAspectInstanceFactoryDecorator aspectInstanceFactory;
private PerTargetInstantiationModelPointcut(AspectJExpressionPointcut declaredPointcut,
public PerTargetInstantiationModelPointcut(AspectJExpressionPointcut declaredPointcut,
Pointcut preInstantiationPointcut, MetadataAwareAspectInstanceFactory aspectInstanceFactory) {
this.declaredPointcut = declaredPointcut;
this.preInstantiationPointcut = preInstantiationPointcut;
if (aspectInstanceFactory instanceof LazySingletonAspectInstanceFactoryDecorator) {
@@ -275,7 +275,8 @@ class InstantiationModelAwarePointcutAdvisorImpl
@Override
public boolean matches(Method method, Class<?> targetClass) {
// We're either instantiated and matching on declared pointcut, or uninstantiated matching on either pointcut
// We're either instantiated and matching on declared pointcut,
// or uninstantiated matching on either pointcut...
return (isAspectMaterialized() && this.declaredPointcut.matches(method, targetClass)) ||
this.preInstantiationPointcut.getMethodMatcher().matches(method, targetClass);
}

29
spring-aop/src/main/java/org/springframework/aop/aspectj/annotation/ReflectiveAspectJAdvisorFactory.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2016 the original author or authors.
* Copyright 2002-2018 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.
@@ -20,9 +20,9 @@ import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import org.aopalliance.aop.Advice;
@@ -131,7 +131,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
MetadataAwareAspectInstanceFactory lazySingletonAspectInstanceFactory =
new LazySingletonAspectInstanceFactoryDecorator(aspectInstanceFactory);
List<Advisor> advisors = new LinkedList<Advisor>();
List<Advisor> advisors = new ArrayList<Advisor>();
for (Method method : getAdvisorMethods(aspectClass)) {
Advisor advisor = getAdvisor(method, lazySingletonAspectInstanceFactory, advisors.size(), aspectName);
if (advisor != null) {
@@ -157,7 +157,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
}
private List<Method> getAdvisorMethods(Class<?> aspectClass) {
final List<Method> methods = new LinkedList<Method>();
final List<Method> methods = new ArrayList<Method>();
ReflectionUtils.doWithMethods(aspectClass, new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method) throws IllegalArgumentException {
@@ -176,7 +176,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
* for the given introduction field.
* <p>Resulting Advisors will need to be evaluated for targets.
* @param introductionField the field to introspect
* @return {@code null} if not an Advisor
* @return the Advisor instance, or {@code null} if not an Advisor
*/
private Advisor getDeclareParentsAdvisor(Field introductionField) {
DeclareParents declareParents = introductionField.getAnnotation(DeclareParents.class);
@@ -253,6 +253,15 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
AbstractAspectJAdvice springAdvice;
switch (aspectJAnnotation.getAnnotationType()) {
case AtPointcut:
if (logger.isDebugEnabled()) {
logger.debug("Processing pointcut '" + candidateAdviceMethod.getName() + "'");
}
return null;
case AtAround:
springAdvice = new AspectJAroundAdvice(
candidateAdviceMethod, expressionPointcut, aspectInstanceFactory);
break;
case AtBefore:
springAdvice = new AspectJMethodBeforeAdvice(
candidateAdviceMethod, expressionPointcut, aspectInstanceFactory);
@@ -277,15 +286,6 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
springAdvice.setThrowingName(afterThrowingAnnotation.throwing());
}
break;
case AtAround:
springAdvice = new AspectJAroundAdvice(
candidateAdviceMethod, expressionPointcut, aspectInstanceFactory);
break;
case AtPointcut:
if (logger.isDebugEnabled()) {
logger.debug("Processing pointcut '" + candidateAdviceMethod.getName() + "'");
}
return null;
default:
throw new UnsupportedOperationException(
"Unsupported advice type on method: " + candidateAdviceMethod);
@@ -299,6 +299,7 @@ public class ReflectiveAspectJAdvisorFactory extends AbstractAspectJAdvisorFacto
springAdvice.setArgumentNamesFromStringArray(argNames);
}
springAdvice.calculateArgumentBindings();
return springAdvice;
}