001 /****************************************************************
002 * Licensed to the Apache Software Foundation (ASF) under one *
003 * or more contributor license agreements. See the NOTICE file *
004 * distributed with this work for additional information *
005 * regarding copyright ownership. The ASF licenses this file *
006 * to you under the Apache License, Version 2.0 (the *
007 * "License"); you may not use this file except in compliance *
008 * with the License. You may obtain a copy of the License at *
009 * *
010 * http://www.apache.org/licenses/LICENSE-2.0 *
011 * *
012 * Unless required by applicable law or agreed to in writing, *
013 * software distributed under the License is distributed on an *
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
015 * KIND, either express or implied. See the License for the *
016 * specific language governing permissions and limitations *
017 * under the License. *
018 ****************************************************************/
019
020 package org.apache.james.mailbox.jpa.mail;
021
022 import java.util.List;
023
024 import javax.persistence.EntityExistsException;
025 import javax.persistence.EntityManagerFactory;
026 import javax.persistence.NoResultException;
027 import javax.persistence.PersistenceException;
028 import javax.persistence.RollbackException;
029
030 import org.apache.james.mailbox.exception.MailboxException;
031 import org.apache.james.mailbox.exception.MailboxExistsException;
032 import org.apache.james.mailbox.exception.MailboxNotFoundException;
033 import org.apache.james.mailbox.jpa.JPATransactionalMapper;
034 import org.apache.james.mailbox.jpa.mail.model.JPAMailbox;
035 import org.apache.james.mailbox.model.MailboxPath;
036 import org.apache.james.mailbox.store.mail.MailboxMapper;
037 import org.apache.james.mailbox.store.mail.model.Mailbox;
038
039 /**
040 * Data access management for mailbox.
041 */
042 public class JPAMailboxMapper extends JPATransactionalMapper implements MailboxMapper<Long> {
043
044 private static final char SQL_WILDCARD_CHAR = '%';
045 private String lastMailboxName;
046
047 public JPAMailboxMapper(EntityManagerFactory entityManagerFactory) {
048 super(entityManagerFactory);
049 }
050
051 /**
052 * Commit the transaction. If the commit fails due a conflict in a unique key constraint a {@link MailboxExistsException}
053 * will get thrown
054 */
055 @Override
056 protected void commit() throws MailboxException {
057 try {
058 getEntityManager().getTransaction().commit();
059 } catch (PersistenceException e) {
060 if (e instanceof EntityExistsException)
061 throw new MailboxExistsException(lastMailboxName);
062 if (e instanceof RollbackException) {
063 Throwable t = e.getCause();
064 if (t != null && t instanceof EntityExistsException)
065 throw new MailboxExistsException(lastMailboxName);
066 }
067 throw new MailboxException("Commit of transaction failed", e);
068 }
069 }
070
071 /**
072 * @see org.apache.james.mailbox.store.mail.MailboxMapper#save(Mailbox)
073 */
074 public void save(Mailbox<Long> mailbox) throws MailboxException {
075 try {
076 this.lastMailboxName = mailbox.getName();
077 getEntityManager().persist(mailbox);
078 } catch (PersistenceException e) {
079 throw new MailboxException("Save of mailbox " + mailbox.getName() +" failed", e);
080 }
081 }
082
083 /**
084 * @see org.apache.james.mailbox.store.mail.MailboxMapper#findMailboxByPath(MailboxPath)
085 */
086 public Mailbox<Long> findMailboxByPath(MailboxPath mailboxPath) throws MailboxException, MailboxNotFoundException {
087 try {
088 if (mailboxPath.getUser() == null) {
089 return (JPAMailbox) getEntityManager().createNamedQuery("findMailboxByName").setParameter("nameParam", mailboxPath.getName()).setParameter("namespaceParam", mailboxPath.getNamespace()).getSingleResult();
090 } else {
091 return (JPAMailbox) getEntityManager().createNamedQuery("findMailboxByNameWithUser").setParameter("nameParam", mailboxPath.getName()).setParameter("namespaceParam", mailboxPath.getNamespace()).setParameter("userParam", mailboxPath.getUser()).getSingleResult();
092 }
093 } catch (NoResultException e) {
094 throw new MailboxNotFoundException(mailboxPath);
095 } catch (PersistenceException e) {
096 throw new MailboxException("Search of mailbox " + mailboxPath + " failed", e);
097 }
098 }
099
100 /**
101 * @see org.apache.james.mailbox.store.mail.MailboxMapper#delete(Mailbox)
102 */
103 public void delete(Mailbox<Long> mailbox) throws MailboxException {
104 try {
105 getEntityManager().createNamedQuery("deleteMessages").setParameter("idParam", mailbox.getMailboxId()).executeUpdate();
106 getEntityManager().remove(mailbox);
107 } catch (PersistenceException e) {
108 throw new MailboxException("Delete of mailbox " + mailbox + " failed", e);
109 }
110 }
111
112 /**
113 * @see org.apache.james.mailbox.store.mail.MailboxMapper#findMailboxWithPathLike(MailboxPath)
114 */
115 @SuppressWarnings("unchecked")
116 public List<Mailbox<Long>> findMailboxWithPathLike(MailboxPath path) throws MailboxException {
117 try {
118 if (path.getUser() == null) {
119 return getEntityManager().createNamedQuery("findMailboxWithNameLike").setParameter("nameParam", SQL_WILDCARD_CHAR + path.getName() + SQL_WILDCARD_CHAR).setParameter("namespaceParam", path.getNamespace()).getResultList();
120 } else {
121 return getEntityManager().createNamedQuery("findMailboxWithNameLikeWithUser").setParameter("nameParam", SQL_WILDCARD_CHAR + path.getName() + SQL_WILDCARD_CHAR).setParameter("namespaceParam", path.getNamespace()).setParameter("userParam", path.getUser()).getResultList();
122 }
123 } catch (PersistenceException e) {
124 throw new MailboxException("Search of mailbox " + path + " failed", e);
125 }
126 }
127
128 public void deleteAllMemberships() throws MailboxException {
129 try {
130 getEntityManager().createNamedQuery("deleteAllMemberships").executeUpdate();
131 } catch (PersistenceException e) {
132 throw new MailboxException("Delete of mailboxes failed", e);
133 }
134 }
135
136 public void deleteAllMailboxes() throws MailboxException {
137 try {
138 getEntityManager().createNamedQuery("deleteAllMailboxes").executeUpdate();
139 } catch (PersistenceException e) {
140 throw new MailboxException("Delete of mailboxes failed", e);
141 }
142 }
143
144 /**
145 * @see org.apache.james.mailbox.store.mail.MailboxMapper#hasChildren(Mailbox, char)
146 */
147 public boolean hasChildren(Mailbox<Long> mailbox, char delimiter) throws MailboxException,
148 MailboxNotFoundException {
149 final String name = mailbox.getName() + delimiter + SQL_WILDCARD_CHAR;
150 final Long numberOfChildMailboxes;
151 if (mailbox.getUser() == null) {
152 numberOfChildMailboxes = (Long) getEntityManager().createNamedQuery("countMailboxesWithNameLike").setParameter("nameParam", name).setParameter("namespaceParam", mailbox.getNamespace()).getSingleResult();
153 } else {
154 numberOfChildMailboxes = (Long) getEntityManager().createNamedQuery("countMailboxesWithNameLikeWithUser").setParameter("nameParam", name).setParameter("namespaceParam", mailbox.getNamespace()).setParameter("userParam", mailbox.getUser()).getSingleResult();
155 }
156 return numberOfChildMailboxes != null && numberOfChildMailboxes > 0;
157 }
158
159 /**
160 * @see org.apache.james.mailbox.store.mail.MailboxMapper#list()
161 */
162 @SuppressWarnings("unchecked")
163 public List<Mailbox<Long>> list() throws MailboxException{
164 try {
165 return getEntityManager().createNamedQuery("listMailboxes").getResultList();
166 } catch (PersistenceException e) {
167 throw new MailboxException("Delete of mailboxes failed", e);
168 }
169 }
170 }