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.data;
022
023 import java.util.HashMap;
024 import java.util.Map;
025
026 import javax.persistence.EntityExistsException;
027 import javax.persistence.EntityNotFoundException;
028 import javax.persistence.NoResultException;
029 import javax.persistence.NonUniqueResultException;
030 import javax.persistence.OptimisticLockException;
031 import javax.persistence.PersistenceException;
032 import javax.persistence.RollbackException;
033 import javax.persistence.TransactionRequiredException;
034
035 import org.granite.messaging.service.ExceptionConverter;
036 import org.granite.messaging.service.ServiceException;
037
038
039 public class PersistenceExceptionConverter 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 return t.getClass().equals(EntityExistsException.class)
053 || t.getClass().equals(EntityNotFoundException.class)
054 || t.getClass().equals(NonUniqueResultException.class)
055 || t.getClass().equals(NoResultException.class)
056 || t.getClass().equals(OptimisticLockException.class)
057 || t.getClass().equals(TransactionRequiredException.class)
058 || t.getClass().equals(RollbackException.class)
059 || PersistenceException.class.isAssignableFrom(t.getClass());
060 }
061
062 public ServiceException convert(Throwable t, String detail, Map<String, Object> extendedData) {
063 String error = null;
064 Map<String, Object> ex = null;
065 if (t.getClass().equals(EntityExistsException.class))
066 error = ENTITY_EXISTS;
067 else if (t.getClass().equals(EntityNotFoundException.class))
068 error = ENTITY_NOT_FOUND;
069 else if (t.getClass().equals(NonUniqueResultException.class))
070 error = NON_UNIQUE_RESULT;
071 else if (t.getClass().equals(NoResultException.class))
072 error = NO_RESULT;
073 else if (t.getClass().equals(OptimisticLockException.class)) {
074 error = OPTIMISTIC_LOCK;
075 ex = new HashMap<String, Object>();
076 ex.put("entity", ((OptimisticLockException)t).getEntity());
077 }
078 else if (t.getClass().equals(TransactionRequiredException.class))
079 error = TRANSACTION_REQUIRED;
080 else if (t.getClass().equals(RollbackException.class))
081 error = ROLLBACK;
082 else
083 error = OTHER;
084
085 ServiceException se = new ServiceException(error, t.getMessage(), detail, t);
086 if (ex != null && !ex.isEmpty())
087 se.getExtendedData().putAll(ex);
088 return se;
089 }
090
091 }