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 */
022package org.granite.tide.hibernate4;
023
024import java.util.HashMap;
025import java.util.Map;
026
027import org.granite.hibernate4.HibernateOptimisticLockException;
028import org.granite.messaging.service.ExceptionConverter;
029import org.granite.messaging.service.ExtendedServiceExceptionHandler;
030import org.granite.messaging.service.ServiceException;
031import org.hibernate.HibernateException;
032import org.hibernate.NonUniqueObjectException;
033import org.hibernate.NonUniqueResultException;
034import org.hibernate.ObjectNotFoundException;
035import org.hibernate.StaleObjectStateException;
036import org.hibernate.StaleStateException;
037
038
039public class HibernateExceptionConverter implements ExceptionConverter {
040    
041    public static final String ENTITY_EXISTS = "Persistence.EntityExists";
042    public static final String ENTITY_NOT_FOUND = "Persistence.EntityNotFound";
043    public static final String NON_UNIQUE_RESULT = "Persistence.NonUnique";
044    public static final String NO_RESULT = "Persistence.NoResult";
045    public static final String OPTIMISTIC_LOCK = "Persistence.OptimisticLock";
046    public static final String TRANSACTION_REQUIRED = "Persistence.TransactionRequired";
047    public static final String ROLLBACK = "Persistence.Rollback";
048    public static final String OTHER = "Persistence.Error";
049    
050
051    public boolean accepts(Throwable t, Throwable finalException) {
052        // Check if we could not let the JPA converter handle the exception
053        for (Throwable cause = finalException; cause != null && cause != t; cause = ExtendedServiceExceptionHandler.getCause(cause)) {
054                if (cause.getClass().getName().startsWith("javax.persistence"))
055                        return false;
056        }
057        
058        return t.getClass().equals(NonUniqueObjectException.class)
059            || t.getClass().equals(ObjectNotFoundException.class)
060            || t.getClass().equals(NonUniqueResultException.class)
061            || StaleStateException.class.isAssignableFrom(t.getClass())
062            || HibernateException.class.isAssignableFrom(t.getClass());
063    }
064
065    public ServiceException convert(Throwable t, String detail, Map<String, Object> extendedData) {
066        String error = null;
067        Map<String, Object> ex = null;
068        if (t.getClass().equals(NonUniqueObjectException.class))
069            error = ENTITY_EXISTS;
070        else if (t.getClass().equals(ObjectNotFoundException.class))
071            error = ENTITY_NOT_FOUND;
072        else if (t.getClass().equals(NonUniqueResultException.class))
073            error = NON_UNIQUE_RESULT;
074        else if (t.getClass().equals(StaleStateException.class) || t.getClass().equals(StaleObjectStateException.class)
075                        || t.getClass().equals(HibernateOptimisticLockException.class)) {
076            error = OPTIMISTIC_LOCK;
077            if (t instanceof HibernateOptimisticLockException) {
078                ex = new HashMap<String, Object>();
079                ex.put("entity", ((HibernateOptimisticLockException)t).getEntity());
080            }
081            else if (t instanceof StaleObjectStateException) {
082                ex = new HashMap<String, Object>();
083                ex.put("entityName", ((StaleObjectStateException)t).getEntityName());
084                ex.put("identifier", ((StaleObjectStateException)t).getIdentifier());
085            }
086        }
087        else
088            error = OTHER; 
089        
090        ServiceException se = new ServiceException(error, t.getMessage(), detail, t);
091        if (ex != null && !ex.isEmpty())
092            se.getExtendedData().putAll(ex);
093        return se;
094    }
095
096}