Spring/spring-framework
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Consistently skip unnecessary search on superclasses and empty elements

Browse Source 
Issue: SPR-16933
This commit is contained in:
Juergen Hoeller
2018-08-15 17:56:03 +02:00
parent bf7fa39a48
commit 6b3dd0779f
5 changed files with 96 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
spring-core/src/main/java/org/springframework/core/annotation/AnnotatedElementUtils.java
View File

@@ -24,6 +24,7 @@ import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
@@ -854,19 +855,21 @@ public class AnnotatedElementUtils {
return result;
}
if (element instanceof Class) { // otherwise getAnnotations doesn't return anything new
List<Annotation> inheritedAnnotations = new ArrayList<>();
for (Annotation annotation : element.getAnnotations()) {
if (!declaredAnnotations.contains(annotation)) {
inheritedAnnotations.add(annotation);
if (element instanceof Class) { // otherwise getAnnotations doesn't return anything new
Class<?> superclass = ((Class) element).getSuperclass();
if (superclass != null && superclass != Object.class) {
List<Annotation> inheritedAnnotations = new LinkedList<>();
for (Annotation annotation : element.getAnnotations()) {
if (!declaredAnnotations.contains(annotation)) {
inheritedAnnotations.add(annotation);
}
}
// Continue searching within inherited annotations
result = searchWithGetSemanticsInAnnotations(element, inheritedAnnotations,
annotationType, annotationName, containerType, processor, visited, metaDepth);
if (result != null) {
return result;
}
}
// Continue searching within inherited annotations
result = searchWithGetSemanticsInAnnotations(element, inheritedAnnotations,
annotationType, annotationName, containerType, processor, visited, metaDepth);
if (result != null) {
return result;
}
}
}
@@ -1126,7 +1129,7 @@ public class AnnotatedElementUtils {
Class<?> clazz = method.getDeclaringClass();
while (true) {
clazz = clazz.getSuperclass();
if (clazz == null || Object.class == clazz) {
if (clazz == null || clazz == Object.class) {
break;
}
Set<Method> annotatedMethods = AnnotationUtils.getAnnotatedMethodsInBaseType(clazz);
@@ -1152,23 +1155,23 @@ public class AnnotatedElementUtils {
}
else if (element instanceof Class) {
Class<?> clazz = (Class<?>) element;
// Search on interfaces
for (Class<?> ifc : clazz.getInterfaces()) {
T result = searchWithFindSemantics(ifc, annotationType, annotationName,
containerType, processor, visited, metaDepth);
if (result != null) {
return result;
if (!Annotation.class.isAssignableFrom(clazz)) {
// Search on interfaces
for (Class<?> ifc : clazz.getInterfaces()) {
T result = searchWithFindSemantics(ifc, annotationType, annotationName,
containerType, processor, visited, metaDepth);
if (result != null) {
return result;
}
}
}
// Search on superclass
Class<?> superclass = clazz.getSuperclass();
if (superclass != null && Object.class != superclass) {
T result = searchWithFindSemantics(superclass, annotationType, annotationName,
containerType, processor, visited, metaDepth);
if (result != null) {
return result;
// Search on superclass
Class<?> superclass = clazz.getSuperclass();
if (superclass != null && superclass != Object.class) {
T result = searchWithFindSemantics(superclass, annotationType, annotationName,
containerType, processor, visited, metaDepth);
if (result != null) {
return result;
}
}
}
}

67
spring-core/src/main/java/org/springframework/core/annotation/AnnotationUtils.java
View File

@@ -346,7 +346,7 @@ public abstract class AnnotationUtils {
if (annotatedElement instanceof Class) {
Class<?> superclass = ((Class<?>) annotatedElement).getSuperclass();
if (superclass != null && Object.class != superclass) {
if (superclass != null && superclass != Object.class) {
return getRepeatableAnnotations(superclass, annotationType, containerAnnotationType);
}
}
@@ -553,7 +553,7 @@ public abstract class AnnotationUtils {
Class<?> clazz = method.getDeclaringClass();
while (result == null) {
clazz = clazz.getSuperclass();
if (clazz == null || Object.class == clazz) {
if (clazz == null || clazz == Object.class) {
break;
}
Set<Method> annotatedMethods = getAnnotatedMethodsInBaseType(clazz);
@@ -600,6 +600,35 @@ public abstract class AnnotationUtils {
return null;
}
/**
* Does the given method override the given candidate method?
* @param method the overriding method
* @param candidate the potentially overridden method
* @since 5.0.8
*/
static boolean isOverride(Method method, Method candidate) {
if (!candidate.getName().equals(method.getName()) ||
candidate.getParameterCount() != method.getParameterCount()) {
return false;
}
Class<?>[] paramTypes = method.getParameterTypes();
if (Arrays.equals(candidate.getParameterTypes(), paramTypes)) {
return true;
}
for (int i = 0; i < paramTypes.length; i++) {
if (paramTypes[i] != ResolvableType.forMethodParameter(candidate, i, method.getDeclaringClass()).resolve()) {
return false;
}
}
return true;
}
/**
* Determine the methods on the given type with searchable annotations on them.
* @param baseType the superclass or interface to search
* @return the cached set of annotated methods
* @since 5.0.5
*/
static Set<Method> getAnnotatedMethodsInBaseType(Class<?> baseType) {
boolean ifcCheck = baseType.isInterface();
if (ifcCheck && ClassUtils.isJavaLanguageInterface(baseType)) {
@@ -634,6 +663,13 @@ public abstract class AnnotationUtils {
return annotatedMethods;
}
/**
* Determine whether the specified method has searchable annotations,
* i.e. not just {@code java.lang} or {@code org.springframework.lang}
* annotations such as {@link Deprecated} and {@link Nullable}.
* @param ifcMethod the interface method to check
* @@since 5.0.5
*/
private static boolean hasSearchableAnnotations(Method ifcMethod) {
Annotation[] anns = ifcMethod.getAnnotations();
if (anns.length == 0) {
@@ -648,23 +684,6 @@ public abstract class AnnotationUtils {
return false;
}
static boolean isOverride(Method method, Method candidate) {
if (!candidate.getName().equals(method.getName()) ||
candidate.getParameterCount() != method.getParameterCount()) {
return false;
}
Class<?>[] paramTypes = method.getParameterTypes();
if (Arrays.equals(candidate.getParameterTypes(), paramTypes)) {
return true;
}
for (int i = 0; i < paramTypes.length; i++) {
if (paramTypes[i] != ResolvableType.forMethodParameter(candidate, i, method.getDeclaringClass()).resolve()) {
return false;
}
}
return true;
}
/**
* Find a single {@link Annotation} of {@code annotationType} on the
* supplied {@link Class}, traversing its interfaces, annotations, and
@@ -763,7 +782,7 @@ public abstract class AnnotationUtils {
}
Class<?> superclass = clazz.getSuperclass();
if (superclass == null || Object.class == superclass) {
if (superclass == null || superclass == Object.class) {
return null;
}
return findAnnotation(superclass, annotationType, visited);
@@ -793,7 +812,7 @@ public abstract class AnnotationUtils {
*/
@Nullable
public static Class<?> findAnnotationDeclaringClass(Class<? extends Annotation> annotationType, @Nullable Class<?> clazz) {
if (clazz == null || Object.class == clazz) {
if (clazz == null || clazz == Object.class) {
return null;
}
if (isAnnotationDeclaredLocally(annotationType, clazz)) {
@@ -827,8 +846,10 @@ public abstract class AnnotationUtils {
* @see #isAnnotationDeclaredLocally(Class, Class)
*/
@Nullable
public static Class<?> findAnnotationDeclaringClassForTypes(List<Class<? extends Annotation>> annotationTypes, @Nullable Class<?> clazz) {
if (clazz == null || Object.class == clazz) {
public static Class<?> findAnnotationDeclaringClassForTypes(
List<Class<? extends Annotation>> annotationTypes, @Nullable Class<?> clazz) {
if (clazz == null || clazz == Object.class) {
return null;
}
for (Class<? extends Annotation> annotationType : annotationTypes) {