How to use

MailboxExistsException

in

org.apache.james.mailbox.exception

/**
 * 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);
  }
}

public String toString() {
  return getMessage();
}

@Override
public MailboxId save(Mailbox mailbox) throws MailboxException {
  Preconditions.checkArgument(mailbox instanceof SimpleMailbox);
  SimpleMailbox cassandraMailbox = (SimpleMailbox) mailbox;
  CassandraId cassandraId = retrieveId(cassandraMailbox);
  cassandraMailbox.setMailboxId(cassandraId);
  boolean applied = trySave(cassandraMailbox, cassandraId).join();
  if (!applied) {
    throw new MailboxExistsException(mailbox.generateAssociatedPath().asString());
  }
  return cassandraId;
}

@Override
public MailboxId save(Mailbox mailbox) throws MailboxException {
  InMemoryId id = (InMemoryId) mailbox.getMailboxId();
  if (id == null) {
    id = InMemoryId.of(mailboxIdGenerator.incrementAndGet());
    mailbox.setMailboxId(id);
  } else {
    try {
      Mailbox mailboxWithPreviousName = findMailboxById(id);
      mailboxesByPath.remove(mailboxWithPreviousName.generateAssociatedPath());
    } catch (MailboxNotFoundException e) {
      // No need to remove the previous mailbox
    }
  }
  Mailbox previousMailbox = mailboxesByPath.putIfAbsent(mailbox.generateAssociatedPath(), mailbox);
  if (previousMailbox != null) {
    throw new MailboxExistsException(mailbox.getName());
  }
  return mailbox.getMailboxId();
}

@Override
public void renameMailbox(MailboxPath from, MailboxPath to, MailboxSession session) throws MailboxException {
  LOGGER.debug("renameMailbox {} to {}", from, to);
  if (mailboxExists(to, session)) {
    throw new MailboxExistsException(to.toString());
  }
  if (isMailboxNameTooLong(to)) {
    throw new TooLongMailboxNameException("Mailbox name exceed maximum size of " + MAX_MAILBOX_NAME_LENGTH + " characters");
  }
  assertIsOwner(session, from);
  MailboxMapper mapper = mailboxSessionMapperFactory.getMailboxMapper(session);
  mapper.execute(Mapper.toTransaction(() -> doRenameMailbox(from, to, session, mapper)));
}

throw new MailboxExistsException(sanitizedMailboxPath.asString());

@Override
public MailboxId save(Mailbox mailbox) throws MailboxException {
  try {
    if (isPathAlreadyUsedByAnotherMailbox(mailbox)) {
      throw new MailboxExistsException(mailbox.getName());
    }
    this.lastMailboxName = mailbox.getName();
    JPAMailbox persistedMailbox = JPAMailbox.from(mailbox);
    getEntityManager().persist(persistedMailbox);
    if (!(mailbox instanceof JPAMailbox)) {
      mailbox.setMailboxId(persistedMailbox.getMailboxId());
    }
    return mailbox.getMailboxId();
  } catch (PersistenceException e) {
    throw new MailboxException("Save of mailbox " + mailbox.getName() + " failed", e);
  } 
}