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Align validation metadata handling in PayloadMethodArgumentResolver

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Reuses ValidationAnnotationUtils which is slightly optimized for the detection of Spring's Validated annotation now, also to the benefit of common web scenarios.

Closes gh-21852

(cherry picked from commit c7269feeaa)
This commit is contained in:
Juergen Hoeller
2023-08-16 12:48:06 +02:00
parent 4326c53222
commit 5f7a6a0f38
3 changed files with 37 additions and 32 deletions
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29
spring-context/src/main/java/org/springframework/validation/annotation/ValidationAnnotationUtils.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2021 the original author or authors.
* Copyright 2002-2023 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.
@@ -26,37 +26,46 @@ import org.springframework.lang.Nullable;
* Mainly for internal use within the framework.
*
* @author Christoph Dreis
* @author Juergen Hoeller
* @since 5.3.7
*/
public abstract class ValidationAnnotationUtils {
private static final Object[] EMPTY_OBJECT_ARRAY = new Object[0];
/**
* Determine any validation hints by the given annotation.
* <p>This implementation checks for {@code @javax.validation.Valid},
* Spring's {@link org.springframework.validation.annotation.Validated},
* and custom annotations whose name starts with "Valid".
* <p>This implementation checks for Spring's
* {@link org.springframework.validation.annotation.Validated},
* {@code @javax.validation.Valid}, and custom annotations whose
* name starts with "Valid" which may optionally declare validation
* hints through the "value" attribute.
* @param ann the annotation (potentially a validation annotation)
* @return the validation hints to apply (possibly an empty array),
* or {@code null} if this annotation does not trigger any validation
*/
@Nullable
public static Object[] determineValidationHints(Annotation ann) {
// Direct presence of @Validated ?
if (ann instanceof Validated) {
return ((Validated) ann).value();
}
// Direct presence of @Valid ?
Class<? extends Annotation> annotationType = ann.annotationType();
String annotationName = annotationType.getName();
if ("javax.validation.Valid".equals(annotationName)) {
if ("javax.validation.Valid".equals(annotationType.getName())) {
return EMPTY_OBJECT_ARRAY;
}
// Meta presence of @Validated ?
Validated validatedAnn = AnnotationUtils.getAnnotation(ann, Validated.class);
if (validatedAnn != null) {
Object hints = validatedAnn.value();
return convertValidationHints(hints);
return validatedAnn.value();
}
// Custom validation annotation ?
if (annotationType.getSimpleName().startsWith("Valid")) {
Object hints = AnnotationUtils.getValue(ann);
return convertValidationHints(hints);
return convertValidationHints(AnnotationUtils.getValue(ann));
}
// No validation triggered
return null;
}