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131 lines
4.8 KiB
131 lines
4.8 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.ajax;
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import org.airsonic.player.domain.MediaFile;
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import org.airsonic.player.service.MediaFileService;
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import org.airsonic.player.service.metadata.MetaData;
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import org.airsonic.player.service.metadata.MetaDataParser;
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import org.airsonic.player.service.metadata.MetaDataParserFactory;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.commons.lang.ObjectUtils;
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import org.apache.commons.lang.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Provides AJAX-enabled services for editing tags in music files.
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* This class is used by the DWR framework (http://getahead.ltd.uk/dwr/).
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*
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* @author Sindre Mehus
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*/
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public class TagService {
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private static final Logger LOG = LoggerFactory.getLogger(TagService.class);
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private MetaDataParserFactory metaDataParserFactory;
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private MediaFileService mediaFileService;
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/**
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* Updated tags for a given music file.
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*
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* @param id The ID of the music file.
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* @param track The track number.
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* @param artist The artist name.
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* @param album The album name.
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* @param title The song title.
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* @param year The release year.
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* @param genre The musical genre.
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* @return "UPDATED" if the new tags were updated, "SKIPPED" if no update was necessary.
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* Otherwise the error message is returned.
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*/
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public String setTags(int id, String track, String artist, String album, String title, String year, String genre) {
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track = StringUtils.trimToNull(track);
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artist = StringUtils.trimToNull(artist);
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album = StringUtils.trimToNull(album);
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title = StringUtils.trimToNull(title);
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year = StringUtils.trimToNull(year);
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genre = StringUtils.trimToNull(genre);
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Integer trackNumber = null;
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if (track != null) {
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try {
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trackNumber = new Integer(track);
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} catch (NumberFormatException x) {
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LOG.warn("Illegal track number: " + track, x);
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}
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}
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Integer yearNumber = null;
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if (year != null) {
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try {
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yearNumber = new Integer(year);
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} catch (NumberFormatException x) {
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LOG.warn("Illegal year: " + year, x);
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}
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}
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try {
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MediaFile file = mediaFileService.getMediaFile(id);
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MetaDataParser parser = metaDataParserFactory.getParser(file.getFile());
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if (!parser.isEditingSupported()) {
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return "Tag editing of " + FilenameUtils.getExtension(file.getPath()) + " files is not supported.";
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}
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if (StringUtils.equals(artist, file.getArtist()) &&
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StringUtils.equals(album, file.getAlbumName()) &&
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StringUtils.equals(title, file.getTitle()) &&
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ObjectUtils.equals(yearNumber, file.getYear()) &&
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StringUtils.equals(genre, file.getGenre()) &&
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ObjectUtils.equals(trackNumber, file.getTrackNumber())) {
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return "SKIPPED";
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}
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MetaData newMetaData = parser.getMetaData(file.getFile());
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// Note: album artist is intentionally set, as it is not user-changeable.
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newMetaData.setArtist(artist);
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newMetaData.setAlbumName(album);
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newMetaData.setTitle(title);
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newMetaData.setYear(yearNumber);
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newMetaData.setGenre(genre);
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newMetaData.setTrackNumber(trackNumber);
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parser.setMetaData(file, newMetaData);
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mediaFileService.refreshMediaFile(file);
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mediaFileService.refreshMediaFile(mediaFileService.getParentOf(file));
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return "UPDATED";
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} catch (Exception x) {
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LOG.warn("Failed to update tags for " + id, x);
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return x.getMessage();
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}
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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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public void setMetaDataParserFactory(MetaDataParserFactory metaDataParserFactory) {
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this.metaDataParserFactory = metaDataParserFactory;
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}
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}
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