D-Net

package eu.dnetlib.goldoa.service.dao;

import eu.dnetlib.goldoa.domain.Author;

import eu.dnetlib.goldoa.domain.Publication;

import org.apache.commons.codec.digest.DigestUtils;

import org.apache.log4j.Logger;

import org.hibernate.criterion.Restrictions;

import org.springframework.stereotype.Repository;

import java.math.BigInteger;

import java.util.List;

@Repository

public class PublicationDAO extends AbstractDao<String,Publication>{

	private static Logger logger = Logger.getLogger(PublicationDAO.class);

	@SuppressWarnings("unchecked")

	public Publication getPublication(final String publicationId) {

        List<Publication> ps = createEntityCriteria().add(Restrictions.eq("id",publicationId)).list();

        if(ps.size() > 0)

            return ps.get(0);

        return null;

	}

	public Publication savePublication(Publication publication) {

		for(Author a : publication.getAuthors()){

			if ( a != null)

				a.setId(DigestUtils.md5Hex(a.getFirstname() + a.getLastname() + a.getEmail() +

						(a.getOrganization() != null ? a.getOrganization().getId() : "") +

						(a.getDepartment() != null ? a.getDepartment() : "")

				) + publication.getId());

		}

		getSession().saveOrUpdate(publication);

		return publication;

	}

	public BigInteger generateIdentifierID() {

		return (BigInteger) getSession().createSQLQuery("select nextval('identifier_id_seq') as id").list().get(0);

	}

}