org.apache.james.mailbox.jpa.user.JPASubscriptionMapper Maven / Gradle / Ivy

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package org.apache.james.mailbox.jpa.user;

import java.util.List;

import javax.persistence.EntityManagerFactory;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceException;

import org.apache.james.mailbox.exception.SubscriptionException;
import org.apache.james.mailbox.jpa.JPATransactionalMapper;
import org.apache.james.mailbox.store.user.SubscriptionMapper;
import org.apache.james.mailbox.store.user.model.Subscription;

/**
 * JPA implementation of a {@link SubscriptionMapper}. This class is not thread-safe!
 */
public class JPASubscriptionMapper extends JPATransactionalMapper implements SubscriptionMapper {

    public JPASubscriptionMapper(EntityManagerFactory entityManagerFactory) {
        super(entityManagerFactory);
    }

    
    @Override
    public Subscription findMailboxSubscriptionForUser(String user, String mailbox) throws SubscriptionException {
        try {
            return (Subscription) getEntityManager().createNamedQuery("findFindMailboxSubscriptionForUser")
            .setParameter("userParam", user).setParameter("mailboxParam", mailbox).getSingleResult();
        } catch (NoResultException e) {
            return null;
        } catch (PersistenceException e) {
            throw new SubscriptionException(e);
        }
    }

    @Override
    public void save(Subscription subscription) throws SubscriptionException {
        try {
            getEntityManager().persist(subscription);
        } catch (PersistenceException e) {
            throw new SubscriptionException(e);
        }
    }

    @Override
    @SuppressWarnings("unchecked")
    public List findSubscriptionsForUser(String user) throws SubscriptionException {
        try {
            return (List) getEntityManager().createNamedQuery("findSubscriptionsForUser").setParameter("userParam", user).getResultList();
        } catch (PersistenceException e) {
            throw new SubscriptionException(e);
        }
    }

    @Override
    public void delete(Subscription subscription) throws SubscriptionException {
        try {
            getEntityManager().remove(subscription);
        } catch (PersistenceException e) {
            throw new SubscriptionException(e);
        }
    }
}