Java Code Examples for org.springframework.validation.ValidationUtils#invokeValidator()

/**
 * Validate each element inside the supplied {@link Collection}.
 * 
 * The supplied errors instance is used to report the validation errors.
 * 
 * @param target the collection that is to be validated
 * @param errors contextual state about the validation process
 */
@Override
@SuppressWarnings("rawtypes")
public void validate(Object target, Errors errors) {
  Collection collection = (Collection) target;
  int index = 0;

  for (Object object : collection) {
    BeanPropertyBindingResult elementErrors = new BeanPropertyBindingResult(object,
        errors.getObjectName());
    elementErrors.setNestedPath("[".concat(Integer.toString(index++)).concat("]."));
    ValidationUtils.invokeValidator(validator, object, elementErrors);

    errors.addAllErrors(elementErrors);
  }
}
 

@Override
public void validate(Object obj, Errors errors) {
	SurveyPage surveyPage= (SurveyPage) obj;
	
	QuestionAnswerValidator questionAnswerValidator;
	int i = 0;
	for (QuestionAnswer questionAnswer : surveyPage.getQuestionAnswers()) {
		log.info("Validating question answer" +  questionAnswer.getQuestion().getQuestionText());
		errors.pushNestedPath("questionAnswers[" + i +"]");
		questionAnswerValidator = new QuestionAnswerValidator(dateFormat,
																validcontentTypes,
																validImageTypes,
																maximunFileSize,
																invalidContentMessage,
																invalidFileSizeMessage);
		ValidationUtils.invokeValidator(questionAnswerValidator, questionAnswer, errors);
		errors.popNestedPath();
		i++;
	}
}
 

/**
 * Bind request parameters onto the given command bean
 * @param request request from which parameters will be bound
 * @param command command object, that must be a JavaBean
 * @throws Exception in case of invalid state or arguments
 */
protected void bind(HttpServletRequest request, Object command) throws Exception {
	logger.debug("Binding request parameters onto MultiActionController command");
	ServletRequestDataBinder binder = createBinder(request, command);
	binder.bind(request);
	if (this.validators != null) {
		for (Validator validator : this.validators) {
			if (validator.supports(command.getClass())) {
				ValidationUtils.invokeValidator(validator, command, binder.getBindingResult());
			}
		}
	}
	binder.closeNoCatch();
}
 

/**
 * Bind request parameters onto the given command bean
 * @param request request from which parameters will be bound
 * @param command command object, that must be a JavaBean
 * @throws Exception in case of invalid state or arguments
 */
protected void bind(HttpServletRequest request, Object command) throws Exception {
	logger.debug("Binding request parameters onto MultiActionController command");
	ServletRequestDataBinder binder = createBinder(request, command);
	binder.bind(request);
	if (this.validators != null) {
		for (Validator validator : this.validators) {
			if (validator.supports(command.getClass())) {
				ValidationUtils.invokeValidator(validator, command, binder.getBindingResult());
			}
		}
	}
	binder.closeNoCatch();
}
 

@Test
public void product_without_UnitPrice_should_be_invalid() {
	//Arrange
	Product product = new Product();
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(1, bindException.getErrorCount()); 
	Assert.assertTrue(bindException.getLocalizedMessage().contains("Unit price is Invalid. It cannot be empty."));
}
 

@Test
public void product_with_existing_productId_invalid() {
	//Arrange
	Product product = new Product("P1234","iPhone 5s", new BigDecimal(500));
	product.setCategory("Tablet");
	
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(1, bindException.getErrorCount()); 
	Assert.assertTrue(bindException.getLocalizedMessage().contains("A product already exists with this product id."));
}
 

@Test
public void a_valid_product_should_not_get_any_error_during_validation() {
	//Arrange
	Product product = new Product("P9876","iPhone 5s", new BigDecimal(500));
	product.setCategory("Tablet");
	
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(0, bindException.getErrorCount()); 
}
 

@Test
public void product_without_UnitPrice_should_be_invalid() {
	//Arrange
	Product product = new Product();
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(1, bindException.getErrorCount()); 
	Assert.assertTrue(bindException.getLocalizedMessage().contains("Unit price is Invalid. It cannot be empty."));
}
 

@Test
public void product_with_existing_productId_invalid() {
	//Arrange
	Product product = new Product("P1234","iPhone 5s", new BigDecimal(500));
	product.setCategory("Tablet");
	
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(1, bindException.getErrorCount()); 
	Assert.assertTrue(bindException.getLocalizedMessage().contains("A product already exists with this product id."));
}
 

@Test
public void a_valid_product_should_not_get_any_error_during_validation() {
	//Arrange
	Product product = new Product("P9876","iPhone 5s", new BigDecimal(500));
	product.setCategory("Tablet");
	
	BindException bindException = new BindException(product, " product");

	//Act
	ValidationUtils.invokeValidator(productValidator, product, bindException);
	
	//Assert
	Assert.assertEquals(0, bindException.getErrorCount()); 
}
 

/**
 * Validate param using param specific validator and validate all strings using a blacklist validator
 * @param arg
 * @param argName
 */
private void validateArg(Object arg, String argName) {
    BindingResult result = new BeanPropertyBindingResult(arg, argName);
    ValidationUtils.invokeValidator(getValidator(), arg, result);
    // force string validation for bad chars
    if (arg instanceof String) {
        ValidationUtils.invokeValidator(getValidator(), new DefaultStringValidatable((String) arg), result);
    }
    if (result.hasErrors()) {
        throw new HttpMessageConversionException("Invalid input parameter " + argName, new BindException(result));
    }
}