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.data;
023
024 import java.util.HashMap;
025 import java.util.Map;
026
027 import javax.persistence.EntityExistsException;
028 import javax.persistence.EntityNotFoundException;
029 import javax.persistence.NoResultException;
030 import javax.persistence.NonUniqueResultException;
031 import javax.persistence.OptimisticLockException;
032 import javax.persistence.PersistenceException;
033 import javax.persistence.RollbackException;
034 import javax.persistence.TransactionRequiredException;
035
036 import org.granite.messaging.service.ExceptionConverter;
037 import org.granite.messaging.service.ServiceException;
038
039
040 public class PersistenceExceptionConverter implements ExceptionConverter {
041
042 public static final String ENTITY_EXISTS = "Persistence.EntityExists";
043 public static final String ENTITY_NOT_FOUND = "Persistence.EntityNotFound";
044 public static final String NON_UNIQUE_RESULT = "Persistence.NonUnique";
045 public static final String NO_RESULT = "Persistence.NoResult";
046 public static final String OPTIMISTIC_LOCK = "Persistence.OptimisticLock";
047 public static final String TRANSACTION_REQUIRED = "Persistence.TransactionRequired";
048 public static final String ROLLBACK = "Persistence.Rollback";
049 public static final String OTHER = "Persistence.Error";
050
051
052 public boolean accepts(Throwable t, Throwable finalException) {
053 return t.getClass().equals(EntityExistsException.class)
054 || t.getClass().equals(EntityNotFoundException.class)
055 || t.getClass().equals(NonUniqueResultException.class)
056 || t.getClass().equals(NoResultException.class)
057 || t.getClass().equals(OptimisticLockException.class)
058 || t.getClass().equals(TransactionRequiredException.class)
059 || t.getClass().equals(RollbackException.class)
060 || PersistenceException.class.isAssignableFrom(t.getClass());
061 }
062
063 public ServiceException convert(Throwable t, String detail, Map<String, Object> extendedData) {
064 String error = null;
065 Map<String, Object> ex = null;
066 if (t.getClass().equals(EntityExistsException.class))
067 error = ENTITY_EXISTS;
068 else if (t.getClass().equals(EntityNotFoundException.class))
069 error = ENTITY_NOT_FOUND;
070 else if (t.getClass().equals(NonUniqueResultException.class))
071 error = NON_UNIQUE_RESULT;
072 else if (t.getClass().equals(NoResultException.class))
073 error = NO_RESULT;
074 else if (t.getClass().equals(OptimisticLockException.class)) {
075 error = OPTIMISTIC_LOCK;
076 ex = new HashMap<String, Object>();
077 ex.put("entity", ((OptimisticLockException)t).getEntity());
078 }
079 else if (t.getClass().equals(TransactionRequiredException.class))
080 error = TRANSACTION_REQUIRED;
081 else if (t.getClass().equals(RollbackException.class))
082 error = ROLLBACK;
083 else
084 error = OTHER;
085
086 ServiceException se = new ServiceException(error, t.getMessage(), detail, t);
087 if (ex != null && !ex.isEmpty())
088 se.getExtendedData().putAll(ex);
089 return se;
090 }
091
092 }