SpringValidatorAdapter accepts non-indexed set paths (for Hibernate Validator compatibility; SPR-8634)

Author: jhoeller

org.springframework.context/src/main/java/org/springframework/validation/beanvalidation/SpringValidatorAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -29,8 +29,10 @@
 import org.springframework.beans.NotReadablePropertyException;
 import org.springframework.context.support.DefaultMessageSourceResolvable;
 import org.springframework.util.Assert;
+import org.springframework.validation.BindingResult;
 import org.springframework.validation.Errors;
 import org.springframework.validation.FieldError;
+import org.springframework.validation.ObjectError;
 import org.springframework.validation.Validator;
 
 /**
@@ -89,10 +91,31 @@ public void validate(Object target, Errors errors) {
 			FieldError fieldError = errors.getFieldError(field);
 			if (fieldError == null || !fieldError.isBindingFailure()) {
 				try {
-					errors.rejectValue(field,
-							violation.getConstraintDescriptor().getAnnotation().annotationType().getSimpleName(),
-							getArgumentsForConstraint(errors.getObjectName(), field, violation.getConstraintDescriptor()),
-							violation.getMessage());
+					String errorCode = violation.getConstraintDescriptor().getAnnotation().annotationType().getSimpleName();
+					Object[] errorArgs = getArgumentsForConstraint(errors.getObjectName(), field, violation.getConstraintDescriptor());
+					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[] errorCodes = bindingResult.resolveMessageCodes(errorCode, field);
+						String nestedField = bindingResult.getNestedPath() + field;
+						ObjectError error;
+						if ("".equals(nestedField)) {
+							error = new ObjectError(
+									errors.getObjectName(), errorCodes, errorArgs, violation.getMessage());
+						}
+						else {
+							error = new FieldError(
+									errors.getObjectName(), nestedField, violation.getInvalidValue(), false,
+									errorCodes, errorArgs, violation.getMessage());
+						}
+						bindingResult.addError(error);
+					}
+					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 +

org.springframework.context/src/test/java/org/springframework/validation/beanvalidation/ValidatorFactoryTests.java

@@ -22,6 +22,9 @@
 import java.lang.annotation.Target;
 import java.util.Arrays;
 import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.LinkedList;
+import java.util.List;
 import java.util.Set;
 import javax.validation.Constraint;
 import javax.validation.ConstraintValidator;
@@ -31,13 +34,14 @@
 import javax.validation.constraints.NotNull;
 
 import org.hibernate.validator.HibernateValidator;
-import static org.junit.Assert.*;
 import org.junit.Test;
 
 import org.springframework.validation.BeanPropertyBindingResult;
 import org.springframework.validation.FieldError;
 import org.springframework.validation.ObjectError;
 
+import static org.junit.Assert.*;
+
 /**
  * @author Juergen Hoeller
  * @since 3.0
@@ -124,7 +128,53 @@ public void testSpringValidationWithClassLevel() throws Exception {
 		BeanPropertyBindingResult result = new BeanPropertyBindingResult(person, "person");
 		validator.validate(person, result);
 		assertEquals(1, result.getErrorCount());
-		ObjectError fieldError = result.getGlobalError();
+		ObjectError globalError = result.getGlobalError();
+		System.out.println(Arrays.asList(globalError.getCodes()));
+		System.out.println(globalError.getDefaultMessage());
+	}
+
+	@Test
+	public void testSpringValidationWithErrorInListElement() throws Exception {
+		LocalValidatorFactoryBean validator = new LocalValidatorFactoryBean();
+		validator.afterPropertiesSet();
+		ValidPerson person = new ValidPerson();
+		person.getAddressList().add(new ValidAddress());
+		BeanPropertyBindingResult result = new BeanPropertyBindingResult(person, "person");
+		validator.validate(person, result);
+		assertEquals(3, result.getErrorCount());
+		FieldError fieldError = result.getFieldError("name");
+		assertEquals("name", fieldError.getField());
+		System.out.println(Arrays.asList(fieldError.getCodes()));
+		System.out.println(fieldError.getDefaultMessage());
+		fieldError = result.getFieldError("address.street");
+		assertEquals("address.street", fieldError.getField());
+		System.out.println(Arrays.asList(fieldError.getCodes()));
+		System.out.println(fieldError.getDefaultMessage());
+		fieldError = result.getFieldError("addressList[0].street");
+		assertEquals("addressList[0].street", fieldError.getField());
+		System.out.println(Arrays.asList(fieldError.getCodes()));
+		System.out.println(fieldError.getDefaultMessage());
+	}
+
+	@Test
+	public void testSpringValidationWithErrorInSetElement() throws Exception {
+		LocalValidatorFactoryBean validator = new LocalValidatorFactoryBean();
+		validator.afterPropertiesSet();
+		ValidPerson person = new ValidPerson();
+		person.getAddressSet().add(new ValidAddress());
+		BeanPropertyBindingResult result = new BeanPropertyBindingResult(person, "person");
+		validator.validate(person, result);
+		assertEquals(3, result.getErrorCount());
+		FieldError fieldError = result.getFieldError("name");
+		assertEquals("name", fieldError.getField());
+		System.out.println(Arrays.asList(fieldError.getCodes()));
+		System.out.println(fieldError.getDefaultMessage());
+		fieldError = result.getFieldError("address.street");
+		assertEquals("address.street", fieldError.getField());
+		System.out.println(Arrays.asList(fieldError.getCodes()));
+		System.out.println(fieldError.getDefaultMessage());
+		fieldError = result.getFieldError("addressSet[].street");
+		assertEquals("addressSet[].street", fieldError.getField());
 		System.out.println(Arrays.asList(fieldError.getCodes()));
 		System.out.println(fieldError.getDefaultMessage());
 	}
@@ -139,6 +189,12 @@ public static class ValidPerson {
 		@Valid
 		private ValidAddress address = new ValidAddress();
 
+		@Valid
+		private List<ValidAddress> addressList = new LinkedList<ValidAddress>();
+
+		@Valid
+		private Set<ValidAddress> addressSet = new LinkedHashSet<ValidAddress>();
+
 		public String getName() {
 			return name;
 		}
@@ -154,6 +210,22 @@ public ValidAddress getAddress() {
 		public void setAddress(ValidAddress address) {
 			this.address = address;
 		}
+
+		public List<ValidAddress> getAddressList() {
+			return addressList;
+		}
+
+		public void setAddressList(List<ValidAddress> addressList) {
+			this.addressList = addressList;
+		}
+
+		public Set<ValidAddress> getAddressSet() {
+			return addressSet;
+		}
+
+		public void setAddressSet(Set<ValidAddress> addressSet) {
+			this.addressSet = addressSet;
+		}
 	}