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Introduce "synthesizable" cache in AnnotationUtils 

Issue: SPR-11512
This commit is contained in:
Sam Brannen 2015-05-22 21:40:36 +02:00
parent 2e4dabb349
commit bd787769be
1 changed files with 19 additions and 4 deletions
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23
spring-core/src/main/java/org/springframework/core/annotation/AnnotationUtils.java
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@ -115,6 +115,9 @@ public abstract class AnnotationUtils {
private static final Map<Class<?>, Boolean> annotatedInterfaceCache =
new ConcurrentReferenceHashMap<Class<?>, Boolean>(256);
private static final Map<Class<? extends Annotation>, Boolean> synthesizableCache =
new ConcurrentReferenceHashMap<Class<? extends Annotation>, Boolean>(256);
private static transient Log logger;
@ -1074,9 +1077,17 @@ public abstract class AnnotationUtils {
@SuppressWarnings("unchecked")
private static boolean isSynthesizable(Class<? extends Annotation> annotationType) {
Boolean flag = synthesizableCache.get(annotationType);
if (flag != null) {
return flag.booleanValue();
}
Boolean synthesizable = Boolean.FALSE;
for (Method attribute : getAttributeMethods(annotationType)) {
if (getAliasedAttributeName(attribute) != null) {
return true;
synthesizable = Boolean.TRUE;
break;
}
Class<?> returnType = attribute.getReturnType();
@ -1084,18 +1095,22 @@ public abstract class AnnotationUtils {
if (Annotation[].class.isAssignableFrom(returnType)) {
Class<? extends Annotation> nestedAnnotationType = (Class<? extends Annotation>) returnType.getComponentType();
if (isSynthesizable(nestedAnnotationType)) {
return true;
synthesizable = Boolean.TRUE;
break;
}
}
else if (Annotation.class.isAssignableFrom(returnType)) {
Class<? extends Annotation> nestedAnnotationType = (Class<? extends Annotation>) returnType;
if (isSynthesizable(nestedAnnotationType)) {
return true;
synthesizable = Boolean.TRUE;
break;
}
}
}
return false;
synthesizableCache.put(annotationType, synthesizable);
return synthesizable.booleanValue();
}
/**