org.apache.james.mailbox.jcr.mail.JCRUidProvider Maven / Gradle / Ivy
/****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one *
* or more contributor license agreements. See the NOTICE file *
* 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 *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
* KIND, either express or implied. See the License for the *
* specific language governing permissions and limitations *
* under the License. *
****************************************************************/
package org.apache.james.mailbox.jcr.mail;
import java.util.Optional;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import org.apache.james.mailbox.MailboxPathLocker;
import org.apache.james.mailbox.MailboxSession;
import org.apache.james.mailbox.MessageUid;
import org.apache.james.mailbox.exception.MailboxException;
import org.apache.james.mailbox.jcr.MailboxSessionJCRRepository;
import org.apache.james.mailbox.jcr.mail.model.JCRMailbox;
import org.apache.james.mailbox.store.mail.AbstractLockingUidProvider;
import org.apache.james.mailbox.store.mail.model.Mailbox;
public class JCRUidProvider extends AbstractLockingUidProvider {
private final MailboxSessionJCRRepository repository;
public JCRUidProvider(MailboxPathLocker locker, MailboxSessionJCRRepository repository) {
super(locker);
this.repository = repository;
}
@Override
public Optional lastUid(MailboxSession mailboxSession, Mailbox mailbox) throws MailboxException {
try {
Session s = repository.login(mailboxSession);
Node node = s.getNodeByIdentifier(mailbox.getMailboxId().serialize());
long rawUid = node.getProperty(JCRMailbox.LASTUID_PROPERTY).getLong();
if (rawUid == 0) {
return Optional.empty();
}
return Optional.of(MessageUid.of(rawUid));
} catch (RepositoryException e) {
throw new MailboxException("Unable to get last uid for mailbox " + mailbox, e);
}
}
@Override
protected MessageUid lockedNextUid(MailboxSession session, Mailbox mailbox) throws MailboxException {
try {
Session s = repository.login(session);
Node node = s.getNodeByIdentifier(mailbox.getMailboxId().serialize());
MessageUid uid = MessageUid.of(node.getProperty(JCRMailbox.LASTUID_PROPERTY).getLong());
MessageUid nextUid = uid.next();
node.setProperty(JCRMailbox.LASTUID_PROPERTY, nextUid.asLong());
s.save();
return nextUid;
} catch (RepositoryException e) {
throw new MailboxException("Unable to consume next uid for mailbox " + mailbox, e);
}
}
}