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 *                               ***
008 *
009 *   Community License: GPL 3.0
010 *
011 *   This file is free software: you can redistribute it and/or modify
012 *   it under the terms of the GNU General Public License as published
013 *   by the Free Software Foundation, either version 3 of the License,
014 *   or (at your option) any later version.
015 *
016 *   This file is distributed in the hope that it will be useful, but
017 *   WITHOUT ANY WARRANTY; without even the implied warranty of
018 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
019 *   GNU General Public License for more details.
020 *
021 *   You should have received a copy of the GNU General Public License
022 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
023 *
024 *                               ***
025 *
026 *   Available Commercial License: GraniteDS SLA 1.0
027 *
028 *   This is the appropriate option if you are creating proprietary
029 *   applications and you are not prepared to distribute and share the
030 *   source code of your application under the GPL v3 license.
031 *
032 *   Please visit http://www.granitedataservices.com/license for more
033 *   details.
034 */
035package org.granite.client.tide.validation;
036
037import java.util.HashSet;
038import java.util.Set;
039
040import javax.validation.ConstraintViolation;
041
042import org.granite.client.messaging.messages.responses.FaultMessage;
043import org.granite.client.messaging.messages.responses.FaultMessage.Code;
044import org.granite.client.tide.Context;
045import org.granite.client.tide.server.ExceptionHandler;
046import org.granite.client.tide.server.TideFaultEvent;
047import org.granite.client.validation.InvalidValue;
048import org.granite.client.validation.NotifyingValidatorFactory;
049import org.granite.client.validation.ServerConstraintViolation;
050
051/**
052 * @author William DRAI
053 */
054public class ValidationExceptionHandler implements ExceptionHandler {
055
056        @Override
057        public boolean accepts(FaultMessage emsg) {
058                return emsg.getCode().equals(Code.VALIDATION_FAILED);
059        }
060
061        @Override
062        public void handle(Context context, FaultMessage emsg, TideFaultEvent faultEvent) {
063                Object[] invalidValues = emsg.getExtended() != null ? (Object[])emsg.getExtended().get("invalidValues") : null;
064                if (invalidValues != null) {
065                        Set<ConstraintViolation<?>> constraintViolations = new HashSet<ConstraintViolation<?>>();
066                        
067                        for (Object v : invalidValues) {
068                                InvalidValue iv = (InvalidValue)v;
069                                Object rootBean = context.getEntityManager().getCachedObject(iv.getRootBean(), true);
070                                Object leafBean = null;
071                                if (iv.getBean() != null) {
072                                        leafBean = context.getEntityManager().getCachedObject(iv.getBean(), true);
073                                        if (leafBean == null) {
074                                                // Embedded ?
075                                                Object bean = rootBean;
076                                                String[] path = iv.getPath().split("\\.");
077                                                for (int i = 0; i < path.length-1; i++)
078                                                        bean = context.getDataManager().getPropertyValue(bean, path[i]);
079                                                leafBean = bean;
080                                        }
081                                }
082                                
083                                ServerConstraintViolation violation = new ServerConstraintViolation(iv, rootBean, leafBean);
084                                constraintViolations.add(violation);
085                        }
086                        
087                        NotifyingValidatorFactory notifyingValidatorFactory = context.byType(NotifyingValidatorFactory.class);
088                        if (notifyingValidatorFactory == null)
089                            throw new RuntimeException("No suitable validator factory defined, cannot process validation events");
090                        
091                    notifyingValidatorFactory.getValidator().notifyConstraintViolations(null, constraintViolations);
092                }
093        }
094
095}