/**
* Process the given JSR-303 ConstraintViolations, adding corresponding errors to the provided
* Spring {@link Errors} object.
*
* @param violations the JSR-303 ConstraintViolation results
* @param errors the Spring errors object to register to
*/
protected void processConstraintViolations(
Set<ConstraintViolation<Object>> violations, Errors errors) {
for (ConstraintViolation<Object> violation : violations) {
String field = violation.getPropertyPath().toString();
FieldError fieldError = errors.getFieldError(field);
if (fieldError == null || !fieldError.isBindingFailure()) {
try {
ConstraintDescriptor<?> cd = violation.getConstraintDescriptor();
String errorCode = cd.getAnnotation().annotationType().getSimpleName();
Object[] errorArgs = getArgumentsForConstraint(errors.getObjectName(), field, cd);
if (errors instanceof BindingResult) {
// Can do custom FieldError registration with invalid value from ConstraintViolation,
// as necessary for Hibernate Validator compatibility (non-indexed set path in field)
BindingResult bindingResult = (BindingResult) errors;
String nestedField = bindingResult.getNestedPath() + field;
if ("".equals(nestedField)) {
String[] errorCodes = bindingResult.resolveMessageCodes(errorCode);
bindingResult.addError(
new ObjectError(
errors.getObjectName(), errorCodes, errorArgs, violation.getMessage()));
} else {
Object invalidValue = violation.getInvalidValue();
if (!"".equals(field)
&& (invalidValue == violation.getLeafBean()
|| (field.contains(".") && !field.contains("[]")))) {
// Possibly a bean constraint with property path: retrieve the actual property
// value.
// However, explicitly avoid this for "address[]" style paths that we can't handle.
invalidValue = bindingResult.getRawFieldValue(field);
}
String[] errorCodes = bindingResult.resolveMessageCodes(errorCode, field);
bindingResult.addError(
new FieldError(
errors.getObjectName(),
nestedField,
invalidValue,
false,
errorCodes,
errorArgs,
violation.getMessage()));
}
} else {
// got no BindingResult - can only do standard rejectValue call
// with automatic extraction of the current field value
errors.rejectValue(field, errorCode, errorArgs, violation.getMessage());
}
} catch (NotReadablePropertyException ex) {
throw new IllegalStateException(
"JSR-303 validated property '"
+ field
+ "' does not have a corresponding accessor for Spring data binding - "
+ "check your DataBinder's configuration (bean property versus direct field access)",
ex);
}
}
}
}
