001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.tide.hibernate;
022
023 import java.util.HashMap;
024 import java.util.Map;
025
026 import org.granite.hibernate.HibernateOptimisticLockException;
027 import org.granite.messaging.service.ExceptionConverter;
028 import org.granite.messaging.service.ExtendedServiceExceptionHandler;
029 import org.granite.messaging.service.ServiceException;
030 import org.hibernate.HibernateException;
031 import org.hibernate.NonUniqueObjectException;
032 import org.hibernate.NonUniqueResultException;
033 import org.hibernate.ObjectNotFoundException;
034 import org.hibernate.StaleObjectStateException;
035 import org.hibernate.StaleStateException;
036
037
038 public class HibernateExceptionConverter implements ExceptionConverter {
039
040 public static final String ENTITY_EXISTS = "Persistence.EntityExists";
041 public static final String ENTITY_NOT_FOUND = "Persistence.EntityNotFound";
042 public static final String NON_UNIQUE_RESULT = "Persistence.NonUnique";
043 public static final String NO_RESULT = "Persistence.NoResult";
044 public static final String OPTIMISTIC_LOCK = "Persistence.OptimisticLock";
045 public static final String TRANSACTION_REQUIRED = "Persistence.TransactionRequired";
046 public static final String ROLLBACK = "Persistence.Rollback";
047 public static final String OTHER = "Persistence.Error";
048
049
050 public boolean accepts(Throwable t, Throwable finalException) {
051 // Check if we could not let the JPA converter handle the exception
052 for (Throwable cause = finalException; cause != null && cause != t; cause = ExtendedServiceExceptionHandler.getCause(cause)) {
053 if (cause.getClass().getName().startsWith("javax.persistence"))
054 return false;
055 }
056
057 return t.getClass().equals(NonUniqueObjectException.class)
058 || t.getClass().equals(ObjectNotFoundException.class)
059 || t.getClass().equals(NonUniqueResultException.class)
060 || StaleStateException.class.isAssignableFrom(t.getClass())
061 || HibernateException.class.isAssignableFrom(t.getClass());
062 }
063
064 public ServiceException convert(Throwable t, String detail, Map<String, Object> extendedData) {
065 String error = null;
066 Map<String, Object> ex = null;
067 if (t.getClass().equals(NonUniqueObjectException.class))
068 error = ENTITY_EXISTS;
069 else if (t.getClass().equals(ObjectNotFoundException.class))
070 error = ENTITY_NOT_FOUND;
071 else if (t.getClass().equals(NonUniqueResultException.class))
072 error = NON_UNIQUE_RESULT;
073 else if (t.getClass().equals(StaleStateException.class) || t.getClass().equals(StaleObjectStateException.class)
074 || t.getClass().equals(HibernateOptimisticLockException.class)) {
075 error = OPTIMISTIC_LOCK;
076 if (t instanceof HibernateOptimisticLockException) {
077 ex = new HashMap<String, Object>();
078 ex.put("entity", ((HibernateOptimisticLockException)t).getEntity());
079 }
080 else if (t instanceof StaleObjectStateException) {
081 ex = new HashMap<String, Object>();
082 ex.put("entityName", ((StaleObjectStateException)t).getEntityName());
083 ex.put("identifier", ((StaleObjectStateException)t).getIdentifier());
084 }
085 }
086 else
087 error = OTHER;
088
089 ServiceException se = new ServiceException(error, t.getMessage(), detail, t);
090 if (ex != null && !ex.isEmpty())
091 se.getExtendedData().putAll(ex);
092 return se;
093 }
094
095 }