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115 lines
3.8 KiB
115 lines
3.8 KiB
/*
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This file is part of Airsonic.
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Airsonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Airsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Airsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2016 (C) Airsonic Authors
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Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
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*/
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package org.airsonic.player.service;
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import org.airsonic.player.dao.RatingDao;
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import org.airsonic.player.domain.MediaFile;
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import org.airsonic.player.domain.MusicFolder;
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import org.airsonic.player.util.FileUtil;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Provides services for user ratings.
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*
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* @author Sindre Mehus
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*/
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@Service
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public class RatingService {
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@Autowired
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private RatingDao ratingDao;
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@Autowired
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private SecurityService securityService;
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@Autowired
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private MediaFileService mediaFileService;
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/**
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* Returns the highest rated albums.
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*
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* @param offset Number of albums to skip.
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* @param count Maximum number of albums to return.
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* @param musicFolders Only return albums in these folders.
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* @return The highest rated albums.
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*/
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public List<MediaFile> getHighestRatedAlbums(int offset, int count, List<MusicFolder> musicFolders) {
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List<String> highestRated = ratingDao.getHighestRatedAlbums(offset, count, musicFolders);
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List<MediaFile> result = new ArrayList<MediaFile>();
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for (String path : highestRated) {
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File file = new File(path);
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if (FileUtil.exists(file) && securityService.isReadAllowed(file)) {
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result.add(mediaFileService.getMediaFile(path));
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}
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}
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return result;
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}
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/**
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* Sets the rating for a music file and a given user.
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*
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* @param username The user name.
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* @param mediaFile The music file.
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* @param rating The rating between 1 and 5, or <code>null</code> to remove the rating.
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*/
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public void setRatingForUser(String username, MediaFile mediaFile, Integer rating) {
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ratingDao.setRatingForUser(username, mediaFile, rating);
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}
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/**
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* Returns the average rating for the given music file.
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*
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* @param mediaFile The music file.
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* @return The average rating, or <code>null</code> if no ratings are set.
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*/
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public Double getAverageRating(MediaFile mediaFile) {
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return ratingDao.getAverageRating(mediaFile);
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}
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/**
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* Returns the rating for the given user and music file.
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*
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* @param username The user name.
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* @param mediaFile The music file.
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* @return The rating, or <code>null</code> if no rating is set.
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*/
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public Integer getRatingForUser(String username, MediaFile mediaFile) {
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return ratingDao.getRatingForUser(username, mediaFile);
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}
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public int getRatedAlbumCount(String username, List<MusicFolder> musicFolders) {
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return ratingDao.getRatedAlbumCount(username, musicFolders);
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}
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public void setRatingDao(RatingDao ratingDao) {
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this.ratingDao = ratingDao;
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}
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public void setSecurityService(SecurityService securityService) {
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this.securityService = securityService;
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}
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public void setMediaFileService(MediaFileService mediaFileService) {
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this.mediaFileService = mediaFileService;
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}
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}
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