GenericValidator.java

package paul.sydney.controller.validation;

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.ValidatorFactory;
import javax.validation.Validator;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;

/**
* GenericValidator class, validates objects during submission
* Copyright : adobocode.com , 2010
*
* @author Paul Sydney Orozco | xtrycatchx@gmail.com
*
*/

@Component("genericValidator")
public class GenericValidator implements org.springframework.validation.Validator, InitializingBean, IGenericValidator {
   private Validator validator;

   public void afterPropertiesSet() throws Exception {
      ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();
      validator = validatorFactory.usingContext().getValidator();
   }

   @SuppressWarnings("unchecked")
   public boolean supports(Class clazz) {
      return true;
   }

   public void validate(Object target, Errors errors) {
      Set<ConstraintViolatio<Object>> constraintViolations = validator.validate(target);
      for (ConstraintViolation<Object> constraintViolation : constraintViolations) {
         String propertyPath = constraintViolation.getPropertyPath().toString();
         String message = constraintViolation.getMessage();
         errors.rejectValue(propertyPath, "", message);
      }
   }
}