Storage.java Source code

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Here is the source code for Storage.java

Source

/*
 * Copyright (c) 2014 Nils Andreas Svee.
 * This file is part of ACacher.
 *
 * ACacher 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.
 *
 * ACacher 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 ACacher.  If not, see <http://www.gnu.org/licenses/>.
 */

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

import java.util.Set;

class Storage {

    private static SessionFactory factory;

    /**
     * Adds a new anime to the database.
     *
     * @param name
     * @param summary
     * @param imageurl
     * @return Returns the ID of the new entry (in this case the MD5 of the
     * name) or null if an exception is thrown
     */
    public static Anime addAnime(String name, String summary, String imageurl, Genre... genres) {
        return addAnime(name, summary, imageurl, SetUtils.fromArray(genres));
    }

    public static Anime addAnime(String name, String summary, String imageurl, Set<Genre> genres) {
        Session session = factory.openSession();
        Transaction tx = null;

        Anime anime = new Anime();
        anime.setGenres(genres);
        anime.setImageurl(imageurl);
        anime.setName(name);
        anime.setSummary(summary);

        try {
            tx = session.beginTransaction();
            session.save(anime);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null) {
                tx.rollback();
            }

            e.printStackTrace();

            return null;
        } finally {
            session.close();
        }

        return anime;
    }

    public static Episode addEpisode(String number, String title, Anime anime) {
        Session session = factory.openSession();
        Transaction tx = null;

        Episode episode = new Episode();
        episode.setAnime(anime);
        episode.setNumber(number);
        episode.setTitle(title);

        try {
            tx = session.beginTransaction();
            session.save(episode);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null) {
                tx.rollback();
            }

            e.printStackTrace();

            return null;
        } finally {
            session.close();
        }

        return episode;
    }

    public static Genre addGenre(String name) {
        Session session = factory.openSession();
        Transaction tx = null;

        Genre genre = new Genre();
        genre.setName(name);

        try {
            tx = session.beginTransaction();
            genre.setId((Integer) session.save(genre));
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null) {
                tx.rollback();
            }

            e.printStackTrace();

            return null;
        } finally {
            session.close();
        }

        return genre;
    }

    public static Source addSource(boolean direct, boolean dubbed, String stream, String url, Episode episode) {
        Session session = factory.openSession();
        Transaction tx = null;

        Source source = new Source();
        source.setDirect(direct);
        source.setDubbed(dubbed);
        source.setEpisode(episode);
        source.setStream(stream);
        source.setUrl(url);

        try {
            tx = session.beginTransaction();
            session.save(source);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null) {
                tx.rollback();
            }

            e.printStackTrace();

            return null;
        } finally {
            session.close();
        }

        return source;
    }

    public static Anime findAnime(String name) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {

            tx = session.beginTransaction();
            Anime anime = (Anime) session.createQuery("FROM Anime WHERE name = '" + name + "'").uniqueResult();
            tx.commit();
            return anime;
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
            return null;
        } finally {
            session.close();
        }
    }

    public static Episode findEpisode(int id) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            Episode episode = (Episode) session.byId(Episode.class).load(id);
            tx.commit();
            return episode;
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
            return null;
        } finally {
            session.close();
        }
    }

    public static Episode findEpisode(String number, Anime anime) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            Episode episode = (Episode) session
                    .createQuery(
                            "FROM Episode WHERE anime_id = '" + anime.getId() + "' AND number = '" + number + "'")
                    .uniqueResult();
            tx.commit();
            return episode;
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
            return null;
        } finally {
            session.close();
        }
    }

    public static Genre findGenre(String name) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            Genre genre = (Genre) session.createQuery("FROM Genre WHERE name = '" + name + "'").uniqueResult();
            tx.commit();
            return genre;
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
            return null;
        } finally {
            session.close();
        }
    }

    public static Source findSource(String url) {
        Session session = factory.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();
            Source source = (Source) session.createQuery("FROM Source WHERE url = '" + url + "'").uniqueResult();
            tx.commit();
            return source;
        } catch (HibernateException e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
            return null;
        } finally {
            session.close();
        }
    }

    /**
     * Creates a new SessionFactory instance
     */
    public static void initialize() {
        if (factory == null) {
            try {
                Configuration configuration = new Configuration();
                configuration.configure();
                ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
                        .applySettings(configuration.getProperties()).build();
                factory = configuration.buildSessionFactory(serviceRegistry);
            } catch (Throwable ex) {
                System.err.println("Failed to create sessionFactory object." + ex);
                throw new ExceptionInInitializerError(ex);
            }
        }
    }
}