ArtistServiceImpl.java

/**
 * Copyright (C) 2013 Johannes Schnatterer
 *
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This file is part of nusic.
 *
 * nusic is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * nusic is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with nusic.  If not, see <http://www.gnu.org/licenses/>.
 */
package info.schnatterer.nusic.core.impl;

import info.schnatterer.nusic.core.ArtistService;
import info.schnatterer.nusic.core.ReleaseService;
import info.schnatterer.nusic.core.ServiceException;
import info.schnatterer.nusic.core.i18n.CoreMessageKey;
import info.schnatterer.nusic.data.DatabaseException;
import info.schnatterer.nusic.data.dao.ArtistDao;
import info.schnatterer.nusic.data.model.Artist;

import javax.inject.Inject;

/**
 * Default implementation of {@link ArtistService}.
 * 
 * @author schnatterer
 *
 */
public class ArtistServiceImpl implements ArtistService {

    @Inject
    private ReleaseService releaseService;
    @Inject
    private ArtistDao artistDao;

    @Override
    public long save(Artist artist) throws ServiceException {
        try {
            long ret = artistDao.save(artist);
            releaseService.saveOrUpdate(artist.getReleases(), false);
            return ret;
        } catch (DatabaseException e) {
            throw new AndroidServiceException(
                    CoreMessageKey.ERROR_WRITING_TO_DB, e);
        }
    }

    @Override
    public int update(Artist artist) throws ServiceException {
        int ret;
        try {
            ret = artistDao.update(artist);
            releaseService.saveOrUpdate(artist.getReleases());
            return ret;
        } catch (DatabaseException e) {
            throw new AndroidServiceException(
                    CoreMessageKey.ERROR_WRITING_TO_DB, e);
        }
    }

    @Override
    public long saveOrUpdate(Artist artist) throws ServiceException {
        try {
            // Does artist exist?
            if (artist.getId() == null) {
                Artist existingArtist = artistDao.findByAndroidId(artist
                        .getAndroidAudioArtistId());
                if (existingArtist != null) {
                    artist.setId(existingArtist.getId());
                    artist.setDateCreated(existingArtist.getDateCreated());
                }
            }
            if (artist.getId() == null) {
                save(artist);
            } else {
                update(artist);
            }
            return artist.getId();
        } catch (DatabaseException e) {
            throw new AndroidServiceException(
                    CoreMessageKey.ERROR_WRITING_TO_DB, e);
        }
    }
}