001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.tide.validation;
023
024 import java.util.Set;
025
026 import javax.naming.InitialContext;
027 import javax.naming.NamingException;
028 import javax.validation.ConstraintViolation;
029 import javax.validation.Validation;
030 import javax.validation.Validator;
031 import javax.validation.ValidatorFactory;
032
033 import org.granite.logging.Logger;
034 import org.granite.tide.validators.EntityValidator;
035 import org.granite.tide.validators.InvalidValue;
036
037 /**
038 * @author William DRAI
039 */
040 public class BeanValidation implements EntityValidator {
041
042 private static final Logger log = Logger.getLogger(BeanValidation.class);
043
044 private ValidatorFactory validatorFactory = null;
045
046
047 public BeanValidation() {
048 try {
049 InitialContext ic = new InitialContext();
050 this.validatorFactory = (ValidatorFactory)ic.lookup("java:comp/ValidatorFactory");
051 }
052 catch (NamingException e) {
053 log.info("ValidatorFactory not found in JNDI, build default");
054 this.validatorFactory = Validation.buildDefaultValidatorFactory();
055 }
056 }
057
058 public BeanValidation(ValidatorFactory validatorFactory) {
059 this.validatorFactory = validatorFactory;
060 }
061
062
063 @SuppressWarnings("unchecked")
064 public InvalidValue[] getPotentialInvalidValues(Class<?> entityClass, String propertyName, Object value) {
065 Validator validator = validatorFactory.getValidator();
066
067 Set<?> constraintViolations = validator.validateValue(entityClass, propertyName, value);
068 return convertConstraintViolations((Set<ConstraintViolation<?>>)constraintViolations);
069 }
070
071
072 public static InvalidValue[] convertConstraintViolations(Set<ConstraintViolation<?>> constraintViolations) {
073 InvalidValue[] converted = new org.granite.tide.validators.InvalidValue[constraintViolations.size()];
074 int i = 0;
075 for (ConstraintViolation<?> cv : constraintViolations) {
076 if (cv.getRootBean() == null) {
077 converted[i++] = new InvalidValue(
078 cv.getRootBeanClass(),
079 cv.getPropertyPath().toString(),
080 cv.getInvalidValue(),
081 cv.getMessage()
082 );
083 }
084 else {
085 converted[i++] = new InvalidValue(
086 cv.getRootBean(),
087 cv.getLeafBean() != null ? cv.getLeafBean() : cv.getRootBean(),
088 cv.getPropertyPath().toString(),
089 cv.getInvalidValue(),
090 cv.getMessage()
091 );
092 }
093 }
094 return converted;
095 }
096 }