org.messic.server.api.randomlists.AuthorRandomListPlugin.java Source code

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Here is the source code for org.messic.server.api.randomlists.AuthorRandomListPlugin.java

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/*
 * Copyright (C) 2013
 *
 *  This file is part of Messic.
 * 
 *  This program 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.
 *
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.messic.server.api.randomlists;

import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Random;

import org.messic.server.api.datamodel.RandomList;
import org.messic.server.api.datamodel.Song;
import org.messic.server.api.datamodel.User;
import org.messic.server.datamodel.MDOAlbum;
import org.messic.server.datamodel.MDOAuthor;
import org.messic.server.datamodel.MDOSong;
import org.messic.server.datamodel.dao.DAOAuthor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class AuthorRandomListPlugin implements RandomListPlugin {
    @Autowired
    private DAOAuthor daoAuthor;

    @Override
    public RandomList getRandomList(User user) {
        // second list, getting all the songs of an author
        List<MDOAuthor> randomAuthorList = daoAuthor.getRandomAuthors(user.getLogin(), 1);
        if (randomAuthorList != null && randomAuthorList.size() > 0) {
            RandomList rl = new RandomList("RandomListName-Author", "RandomListTitle-Author");
            rl.addDetail(randomAuthorList.get(0).getName());
            Iterator<MDOAlbum> albumsit = randomAuthorList.get(0).getAlbums().iterator();
            while (albumsit.hasNext()) {
                MDOAlbum album = albumsit.next();
                List<MDOSong> songs = album.getSongs();
                for (int i = 0; i < songs.size() && rl.getSongs().size() < MAX_ELEMENTS; i++) {
                    MDOSong mdoSong = songs.get(i);
                    Song song = new Song(mdoSong, true, true);
                    rl.addSong(song);
                }
            }
            long seed = System.nanoTime();
            if (rl.getSongs() != null) {
                Collections.shuffle(rl.getSongs(), new Random(seed));
            }
            return rl;
        }
        return null;
    }

    @Override
    public String getName() {
        return getClass().getName();
    }

}