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* distributed with this work for additional information *
* regarding copyright ownership. The ASF licenses this file *
* to you under the Apache License, Version 2.0 (the *
* "License"); you may not use this file except in compliance *
* with the License. You may obtain a copy of the License at *
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* http://www.apache.org/licenses/LICENSE-2.0 *
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* software distributed under the License is distributed on an *
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* specific language governing permissions and limitations *
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package org.apache.james.mailbox.jpa.mail;
import java.util.List;
import javax.persistence.EntityExistsException;
import javax.persistence.EntityManagerFactory;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceException;
import javax.persistence.RollbackException;
import org.apache.james.mailbox.exception.MailboxException;
import org.apache.james.mailbox.exception.MailboxExistsException;
import org.apache.james.mailbox.exception.MailboxNotFoundException;
import org.apache.james.mailbox.jpa.JPATransactionalMapper;
import org.apache.james.mailbox.jpa.mail.model.JPAMailbox;
import org.apache.james.mailbox.model.MailboxPath;
import org.apache.james.mailbox.store.mail.MailboxMapper;
import org.apache.james.mailbox.store.mail.model.Mailbox;
/**
* Data access management for mailbox.
*/
public class JPAMailboxMapper extends JPATransactionalMapper implements MailboxMapper<Long> {
private static final char SQL_WILDCARD_CHAR = '%';
private String lastMailboxName;
public JPAMailboxMapper(EntityManagerFactory entityManagerFactory) {
super(entityManagerFactory);
}
/**
* Commit the transaction. If the commit fails due a conflict in a unique key constraint a {@link MailboxExistsException}
* will get thrown
*/
@Override
protected void commit() throws MailboxException {
try {
getEntityManager().getTransaction().commit();
} catch (PersistenceException e) {
if (e instanceof EntityExistsException)
throw new MailboxExistsException(lastMailboxName);
if (e instanceof RollbackException) {
Throwable t = e.getCause();
if (t != null && t instanceof EntityExistsException)
throw new MailboxExistsException(lastMailboxName);
}
throw new MailboxException("Commit of transaction failed", e);
}
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#save(Mailbox)
*/
public void save(Mailbox<Long> mailbox) throws MailboxException {
try {
this.lastMailboxName = mailbox.getName();
getEntityManager().persist(mailbox);
} catch (PersistenceException e) {
throw new MailboxException("Save of mailbox " + mailbox.getName() +" failed", e);
}
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#findMailboxByPath(MailboxPath)
*/
public Mailbox<Long> findMailboxByPath(MailboxPath mailboxPath) throws MailboxException, MailboxNotFoundException {
try {
if (mailboxPath.getUser() == null) {
return (JPAMailbox) getEntityManager().createNamedQuery("findMailboxByName").setParameter("nameParam", mailboxPath.getName()).setParameter("namespaceParam", mailboxPath.getNamespace()).getSingleResult();
} else {
return (JPAMailbox) getEntityManager().createNamedQuery("findMailboxByNameWithUser").setParameter("nameParam", mailboxPath.getName()).setParameter("namespaceParam", mailboxPath.getNamespace()).setParameter("userParam", mailboxPath.getUser()).getSingleResult();
}
} catch (NoResultException e) {
throw new MailboxNotFoundException(mailboxPath);
} catch (PersistenceException e) {
throw new MailboxException("Search of mailbox " + mailboxPath + " failed", e);
}
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#delete(Mailbox)
*/
public void delete(Mailbox<Long> mailbox) throws MailboxException {
try {
getEntityManager().createNamedQuery("deleteMessages").setParameter("idParam", mailbox.getMailboxId()).executeUpdate();
getEntityManager().remove(mailbox);
} catch (PersistenceException e) {
throw new MailboxException("Delete of mailbox " + mailbox + " failed", e);
}
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#findMailboxWithPathLike(MailboxPath)
*/
@SuppressWarnings("unchecked")
public List<Mailbox<Long>> findMailboxWithPathLike(MailboxPath path) throws MailboxException {
try {
if (path.getUser() == null) {
return getEntityManager().createNamedQuery("findMailboxWithNameLike").setParameter("nameParam", SQL_WILDCARD_CHAR + path.getName() + SQL_WILDCARD_CHAR).setParameter("namespaceParam", path.getNamespace()).getResultList();
} else {
return getEntityManager().createNamedQuery("findMailboxWithNameLikeWithUser").setParameter("nameParam", SQL_WILDCARD_CHAR + path.getName() + SQL_WILDCARD_CHAR).setParameter("namespaceParam", path.getNamespace()).setParameter("userParam", path.getUser()).getResultList();
}
} catch (PersistenceException e) {
throw new MailboxException("Search of mailbox " + path + " failed", e);
}
}
public void deleteAllMemberships() throws MailboxException {
try {
getEntityManager().createNamedQuery("deleteAllMemberships").executeUpdate();
} catch (PersistenceException e) {
throw new MailboxException("Delete of mailboxes failed", e);
}
}
public void deleteAllMailboxes() throws MailboxException {
try {
getEntityManager().createNamedQuery("deleteAllMailboxes").executeUpdate();
} catch (PersistenceException e) {
throw new MailboxException("Delete of mailboxes failed", e);
}
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#hasChildren(Mailbox, char)
*/
public boolean hasChildren(Mailbox<Long> mailbox, char delimiter) throws MailboxException,
MailboxNotFoundException {
final String name = mailbox.getName() + delimiter + SQL_WILDCARD_CHAR;
final Long numberOfChildMailboxes;
if (mailbox.getUser() == null) {
numberOfChildMailboxes = (Long) getEntityManager().createNamedQuery("countMailboxesWithNameLike").setParameter("nameParam", name).setParameter("namespaceParam", mailbox.getNamespace()).getSingleResult();
} else {
numberOfChildMailboxes = (Long) getEntityManager().createNamedQuery("countMailboxesWithNameLikeWithUser").setParameter("nameParam", name).setParameter("namespaceParam", mailbox.getNamespace()).setParameter("userParam", mailbox.getUser()).getSingleResult();
}
return numberOfChildMailboxes != null && numberOfChildMailboxes > 0;
}
/**
* @see org.apache.james.mailbox.store.mail.MailboxMapper#list()
*/
@SuppressWarnings("unchecked")
public List<Mailbox<Long>> list() throws MailboxException{
try {
return getEntityManager().createNamedQuery("listMailboxes").getResultList();
} catch (PersistenceException e) {
throw new MailboxException("Delete of mailboxes failed", e);
}
}
}