org.apache.james.mailbox.jpa.JPAMailboxSessionMapperFactory Maven / Gradle / Ivy

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package org.apache.james.mailbox.jpa;

import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;

import org.apache.commons.lang3.NotImplementedException;
import org.apache.james.backends.jpa.EntityManagerUtils;
import org.apache.james.mailbox.MailboxSession;
import org.apache.james.mailbox.jpa.mail.JPAAnnotationMapper;
import org.apache.james.mailbox.jpa.mail.JPAMailboxMapper;
import org.apache.james.mailbox.jpa.mail.JPAMessageMapper;
import org.apache.james.mailbox.jpa.mail.JPAModSeqProvider;
import org.apache.james.mailbox.jpa.mail.JPAUidProvider;
import org.apache.james.mailbox.jpa.user.JPASubscriptionMapper;
import org.apache.james.mailbox.store.MailboxSessionMapperFactory;
import org.apache.james.mailbox.store.mail.AnnotationMapper;
import org.apache.james.mailbox.store.mail.MailboxMapper;
import org.apache.james.mailbox.store.mail.MessageIdMapper;
import org.apache.james.mailbox.store.mail.MessageMapper;
import org.apache.james.mailbox.store.mail.ModSeqProvider;
import org.apache.james.mailbox.store.mail.UidProvider;
import org.apache.james.mailbox.store.user.SubscriptionMapper;

/**
 * JPA implementation of {@link MailboxSessionMapperFactory}
 *
 */
public class JPAMailboxSessionMapperFactory extends MailboxSessionMapperFactory {

    private final EntityManagerFactory entityManagerFactory;
    private final JPAUidProvider uidProvider;
    private final JPAModSeqProvider modSeqProvider;

    @Inject
    public JPAMailboxSessionMapperFactory(EntityManagerFactory entityManagerFactory, JPAUidProvider uidProvider, JPAModSeqProvider modSeqProvider) {
        this.entityManagerFactory = entityManagerFactory;
        this.uidProvider = uidProvider;
        this.modSeqProvider = modSeqProvider;
        EntityManagerUtils.safelyClose(createEntityManager());
    }
    
    @Override
    public MailboxMapper createMailboxMapper(MailboxSession session) {
        return new JPAMailboxMapper(entityManagerFactory);
    }

    @Override
    public MessageMapper createMessageMapper(MailboxSession session) {
        return new JPAMessageMapper(uidProvider, modSeqProvider, entityManagerFactory);
    }

    @Override
    public MessageIdMapper createMessageIdMapper(MailboxSession session) {
        throw new NotImplementedException("not implemented");
    }

    @Override
    public SubscriptionMapper createSubscriptionMapper(MailboxSession session) {
        return new JPASubscriptionMapper(entityManagerFactory);
    }

    /**
     * Return a new {@link EntityManager} instance
     * 
     * @return manager
     */
    private EntityManager createEntityManager() {
        return entityManagerFactory.createEntityManager();
    }

    @Override
    public AnnotationMapper createAnnotationMapper(MailboxSession session) {
        return new JPAAnnotationMapper(entityManagerFactory);
    }

    @Override
    public UidProvider getUidProvider() {
        return uidProvider;
    }

    @Override
    public ModSeqProvider getModSeqProvider() {
        return modSeqProvider;
    }

}