/**
* Validate the model attribute if applicable.
*
* <p>The default implementation checks for {@code @javax.validation.Valid}.
*
* @param binder the DataBinder to be used
* @param parameter the method parameter
*/
protected void validateIfApplicable(WebDataBinder binder, MethodParameter parameter) {
Annotation[] annotations = parameter.getParameterAnnotations();
for (Annotation annot : annotations) {
if (annot.annotationType().getSimpleName().startsWith("Valid")) {
Object hints = AnnotationUtils.getValue(annot);
binder.validate(hints instanceof Object[] ? (Object[]) hints : new Object[] {hints});
}
}
}
private void doBind(
WebDataBinder binder, NativeWebRequest webRequest, boolean validate, boolean failOnErrors)
throws Exception {
doBind(binder, webRequest);
if (validate) {
binder.validate();
}
if (failOnErrors && binder.getBindingResult().hasErrors()) {
throw new BindException(binder.getBindingResult());
}
}
/**
* Validate the model attribute if applicable.
*
* <p>The default implementation checks for {@code @javax.validation.Valid}.
*
* @param binder the DataBinder to be used
* @param parameter the method parameter
*/
protected void validateIfApplicable(WebDataBinder binder, MethodParameter parameter) {
Annotation[] annotations = parameter.getParameterAnnotations();
for (Annotation ann : annotations) {
Validated validatedAnn = AnnotationUtils.getAnnotation(ann, Validated.class);
if (validatedAnn != null || ann.annotationType().getSimpleName().startsWith("Valid")) {
Object hints =
(validatedAnn != null ? validatedAnn.value() : AnnotationUtils.getValue(ann));
Object[] validationHints =
(hints instanceof Object[] ? (Object[]) hints : new Object[] {hints});
binder.validate(validationHints);
break;
}
}
}
protected void validateComponent(WebDataBinder binder, MethodParameter parameter)
throws BindException {
boolean validateParameter = validateParameter(parameter);
Annotation[] annotations = binder.getTarget().getClass().getAnnotations();
for (Annotation annot : annotations) {
if (annot.annotationType().getSimpleName().startsWith("Valid") && validateParameter) {
Object hints = AnnotationUtils.getValue(annot);
binder.validate(hints instanceof Object[] ? (Object[]) hints : new Object[] {hints});
}
}
if (binder.getBindingResult().hasErrors()) {
if (isBindExceptionRequired(binder, parameter)) {
throw new BindException(binder.getBindingResult());
}
}
}
private void validate(WebDataBinder binder, MethodParameter parameter)
throws MethodArgumentNotValidException {
Annotation[] annotations = parameter.getParameterAnnotations();
for (Annotation annot : annotations) {
if (annot.annotationType().getSimpleName().startsWith("Valid")) {
Object hints = AnnotationUtils.getValue(annot);
binder.validate(hints instanceof Object[] ? (Object[]) hints : new Object[] {hints});
BindingResult bindingResult = binder.getBindingResult();
if (bindingResult.hasErrors()) {
if (isBindingErrorFatal(parameter)) {
throw new MethodArgumentNotValidException(parameter, bindingResult);
}
}
}
}
}
public Object resolveArgument(
MethodParameter parameter,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest,
WebDataBinderFactory binderFactory)
throws Exception {
Object arg = readWithMessageConverters(webRequest, parameter, parameter.getParameterType());
if (shouldValidate(parameter, arg)) {
String argName = Conventions.getVariableNameForParameter(parameter);
WebDataBinder binder = binderFactory.createBinder(webRequest, arg, argName);
binder.validate();
Errors errors = binder.getBindingResult();
if (errors.hasErrors()) {
throw new RequestBodyNotValidException(errors);
}
}
return arg;
}
