/*
* The MIT License
*
* Copyright (c) 2014, Mahmoud Ben Hassine (md.benhassine@gmail.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.easybatch.validation;
import org.easybatch.core.api.RecordValidator;
import org.easybatch.core.api.ValidationError;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import java.util.HashSet;
import java.util.Set;
/**
* An implementation of {@link RecordValidator} using JSR 303 API.
*
* @param <T> the object type this validator can validate.
*
* @author Mahmoud Ben Hassine (md.benhassine@gmail.com)
*/
public class BeanValidationRecordValidator<T> implements RecordValidator<T> {
/**
* The validator instance to use to validate objects.
*/
private Validator validator;
public BeanValidationRecordValidator() {
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
validator = factory.getValidator();
}
/**
* {@inheritDoc}
*/
public Set<ValidationError> validateRecord(final T record) {
Set<ValidationError> validationErrors = new HashSet<ValidationError>();
Set<ConstraintViolation<T>> constraintViolationSet = validator.validate(record);
for (ConstraintViolation<T> constraintViolation : constraintViolationSet) {
String validationErrorMessage = new StringBuilder()
.append("Invalid value '").append(constraintViolation.getInvalidValue()).append("' ")
.append("for property '").append(constraintViolation.getPropertyPath()).append("' : ")
.append(constraintViolation.getMessage()).toString();
validationErrors.add(new ValidationError(validationErrorMessage));
}
return validationErrors;
}
}