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396 lines
14 KiB
396 lines
14 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.metadata;
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import org.airsonic.player.domain.MediaFile;
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import org.airsonic.player.service.SettingsService;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.commons.lang.StringUtils;
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import org.jaudiotagger.audio.AudioFile;
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import org.jaudiotagger.audio.AudioFileIO;
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import org.jaudiotagger.audio.AudioHeader;
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import org.jaudiotagger.tag.FieldKey;
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import org.jaudiotagger.tag.Tag;
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import org.jaudiotagger.tag.id3.AbstractID3Tag;
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import org.jaudiotagger.tag.id3.ID3v24Frames;
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import org.jaudiotagger.tag.id3.ID3v24Tag;
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import org.jaudiotagger.tag.images.Artwork;
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import org.jaudiotagger.tag.reference.GenreTypes;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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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 org.springframework.util.ObjectUtils;
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import java.io.File;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import java.util.logging.LogManager;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Parses meta data from audio files using the Jaudiotagger library
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* (http://www.jthink.net/jaudiotagger/)
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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 JaudiotaggerParser extends MetaDataParser {
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private static final Logger LOG = LoggerFactory.getLogger(JaudiotaggerParser.class);
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private static final Pattern GENRE_PATTERN = Pattern.compile("\\((\\d+)\\).*");
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private static final Pattern TRACK_NUMBER_PATTERN = Pattern.compile("(\\d+)/\\d+");
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private static final Pattern YEAR_NUMBER_PATTERN = Pattern.compile("(\\d{4}).*");
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@Autowired
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private final SettingsService settingsService;
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public JaudiotaggerParser(SettingsService settingsService) {
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this.settingsService = settingsService;
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}
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static {
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try {
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LogManager.getLogManager().reset();
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} catch (Throwable x) {
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LOG.warn("Failed to turn off logging from Jaudiotagger.", x);
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}
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}
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/**
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* Parses meta data for the given music file. No guessing or reformatting is done.
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*
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*
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* @param file The music file to parse.
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* @return Meta data for the file.
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*/
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@Override
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public MetaData getRawMetaData(File file) {
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MetaData metaData = new MetaData();
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try {
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AudioFile audioFile = AudioFileIO.read(file);
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Tag tag = audioFile.getTag();
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if (tag != null) {
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metaData.setAlbumName(getTagField(tag, FieldKey.ALBUM));
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metaData.setTitle(getTagField(tag, FieldKey.TITLE));
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metaData.setYear(parseYear(getTagField(tag, FieldKey.YEAR)));
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metaData.setGenre(mapGenre(getTagField(tag, FieldKey.GENRE)));
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metaData.setDiscNumber(parseInteger(getTagField(tag, FieldKey.DISC_NO)));
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metaData.setTrackNumber(parseTrackNumber(getTagField(tag, FieldKey.TRACK)));
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metaData.setMusicBrainzReleaseId(getTagField(tag, FieldKey.MUSICBRAINZ_RELEASEID));
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metaData.setArtist(getTagField(tag, FieldKey.ARTIST));
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metaData.setAlbumArtist(getTagField(tag, FieldKey.ALBUM_ARTIST));
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if (tag instanceof AbstractID3Tag && 0 < audioFile.getTag().getFieldCount()) {
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AbstractID3Tag id3Tag = (AbstractID3Tag)tag;
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if (ID3v24Tag.RELEASE == id3Tag.getRelease()
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&& ID3v24Tag.MAJOR_VERSION == id3Tag.getMajorVersion()
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&& ID3v24Tag.REVISION == id3Tag.getRevision()) {
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audioFile.getTag().getFields().forEachRemaining(f -> {
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switch (f.getId()) {
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case ID3v24Frames.FRAME_ID_ALBUM:
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if (StringUtils.isBlank(metaData.getAlbumName())) {
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metaData.setAlbumName(f.toString());
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}
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break;
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case ID3v24Frames.FRAME_ID_TITLE:
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if (StringUtils.isBlank(metaData.getTitle())) {
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metaData.setTitle(f.toString());
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}
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break;
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case ID3v24Frames.FRAME_ID_YEAR:
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if (ObjectUtils.isEmpty(metaData.getYear())) {
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metaData.setYear(parseYear(f.toString()));
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}
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break;
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case ID3v24Frames.FRAME_ID_GENRE:
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if (StringUtils.isBlank(metaData.getGenre())) {
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metaData.setGenre(mapGenre(f.toString()));
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}
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break;
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case ID3v24Frames.FRAME_ID_SET:
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if (ObjectUtils.isEmpty(metaData.getDiscNumber())) {
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metaData.setDiscNumber(parseInteger(f.toString()));
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}
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break;
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case ID3v24Frames.FRAME_ID_TRACK:
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if (ObjectUtils.isEmpty(metaData.getTrackNumber())) {
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metaData.setTrackNumber(parseTrackNumber(f.toString()));
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}
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break;
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case ID3v24Frames.FRAME_ID_ARTIST:
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if (StringUtils.isBlank(metaData.getArtist())) {
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metaData.setArtist(f.toString());
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}
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break;
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case ID3v24Frames.FRAME_ID_ACCOMPANIMENT:
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if (StringUtils.isBlank(metaData.getAlbumArtist())) {
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metaData.setAlbumArtist(f.toString());
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}
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break;
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default:
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break;
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}
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});
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}
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}
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if (StringUtils.isBlank(metaData.getArtist())) {
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metaData.setArtist(metaData.getAlbumArtist());
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}
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if (StringUtils.isBlank(metaData.getAlbumArtist())) {
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metaData.setAlbumArtist(metaData.getArtist());
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}
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}
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AudioHeader audioHeader = audioFile.getAudioHeader();
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if (audioHeader != null) {
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metaData.setVariableBitRate(audioHeader.isVariableBitRate());
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metaData.setBitRate((int) audioHeader.getBitRateAsNumber());
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metaData.setDurationSeconds(audioHeader.getTrackLength());
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}
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} catch (Throwable x) {
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LOG.warn("Error when parsing tags in " + file, x);
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}
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return metaData;
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}
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private String getTagField(Tag tag, FieldKey fieldKey) {
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try {
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return StringUtils.trimToNull(tag.getFirst(fieldKey));
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} catch (Exception x) {
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// Ignored.
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return null;
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}
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}
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/**
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* Returns all tags supported by id3v1.
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*/
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public static SortedSet<String> getID3V1Genres() {
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return new TreeSet<String>(GenreTypes.getInstanceOf().getAlphabeticalValueList());
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}
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/**
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* Sometimes the genre is returned as "(17)" or "(17)Rock", instead of "Rock". This method
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* maps the genre ID to the corresponding text.
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*/
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private String mapGenre(String genre) {
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if (genre == null) {
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return null;
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}
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Matcher matcher = GENRE_PATTERN.matcher(genre);
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if (matcher.matches()) {
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int genreId = Integer.parseInt(matcher.group(1));
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if (genreId >= 0 && genreId < GenreTypes.getInstanceOf().getSize()) {
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return GenreTypes.getInstanceOf().getValueForId(genreId);
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}
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}
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return genre;
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}
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/**
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* Parses the track number from the given string. Also supports
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* track numbers on the form "4/12".
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*/
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private Integer parseTrackNumber(String trackNumber) {
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if (trackNumber == null) {
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return null;
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}
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Integer result = null;
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try {
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result = Integer.valueOf(trackNumber);
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} catch (NumberFormatException x) {
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Matcher matcher = TRACK_NUMBER_PATTERN.matcher(trackNumber);
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if (matcher.matches()) {
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try {
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result = Integer.valueOf(matcher.group(1));
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} catch (NumberFormatException e) {
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return null;
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}
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}
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}
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if (Integer.valueOf(0).equals(result)) {
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return null;
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}
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return result;
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}
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private Integer parseYear(String year) {
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if (year == null) {
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return null;
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}
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Integer result = null;
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try {
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result = Integer.valueOf(year);
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} catch (NumberFormatException x) {
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Matcher matcher = YEAR_NUMBER_PATTERN.matcher(year);
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if (matcher.matches()) {
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try {
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result = Integer.valueOf(matcher.group(1));
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} catch (NumberFormatException e) {
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return null;
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}
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}
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}
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if (Integer.valueOf(0).equals(result)) {
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return null;
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}
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return result;
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}
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private Integer parseInteger(String s) {
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s = StringUtils.trimToNull(s);
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if (s == null) {
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return null;
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}
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try {
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Integer result = Integer.valueOf(s);
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if (Integer.valueOf(0).equals(result)) {
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return null;
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}
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return result;
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} catch (NumberFormatException x) {
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return null;
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}
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}
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/**
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* Updates the given file with the given meta data.
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*
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* @param file The music file to update.
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* @param metaData The new meta data.
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*/
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@Override
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public void setMetaData(MediaFile file, MetaData metaData) {
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try {
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AudioFile audioFile = AudioFileIO.read(file.getFile());
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Tag tag = audioFile.getTagOrCreateAndSetDefault();
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tag.setField(FieldKey.ARTIST, StringUtils.trimToEmpty(metaData.getArtist()));
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tag.setField(FieldKey.ALBUM, StringUtils.trimToEmpty(metaData.getAlbumName()));
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tag.setField(FieldKey.TITLE, StringUtils.trimToEmpty(metaData.getTitle()));
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tag.setField(FieldKey.GENRE, StringUtils.trimToEmpty(metaData.getGenre()));
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try {
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tag.setField(FieldKey.ALBUM_ARTIST, StringUtils.trimToEmpty(metaData.getAlbumArtist()));
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} catch (Exception x) {
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// Silently ignored. ID3v1 doesn't support album artist.
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}
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Integer track = metaData.getTrackNumber();
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if (track == null) {
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tag.deleteField(FieldKey.TRACK);
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} else {
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tag.setField(FieldKey.TRACK, String.valueOf(track));
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}
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Integer year = metaData.getYear();
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if (year == null) {
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tag.deleteField(FieldKey.YEAR);
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} else {
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tag.setField(FieldKey.YEAR, String.valueOf(year));
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}
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audioFile.commit();
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} catch (Throwable x) {
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LOG.warn("Failed to update tags for file " + file, x);
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throw new RuntimeException("Failed to update tags for file " + file + ". " + x.getMessage(), x);
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}
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}
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/**
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* Returns whether this parser supports tag editing (using the {@link #setMetaData} method).
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*
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* @return Always true.
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*/
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@Override
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public boolean isEditingSupported() {
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return true;
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}
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@Override
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SettingsService getSettingsService() {
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return settingsService;
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}
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/**
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* Returns whether this parser is applicable to the given file.
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*
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* @param file The music file in question.
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* @return Whether this parser is applicable to the given file.
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*/
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@Override
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public boolean isApplicable(File file) {
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if (!file.isFile()) {
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return false;
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}
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String format = FilenameUtils.getExtension(file.getName()).toLowerCase();
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return "mp3".equals(format) ||
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"m4a".equals(format) ||
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"m4b".equals(format) ||
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"aac".equals(format) ||
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"ogg".equals(format) ||
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"flac".equals(format) ||
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"wav".equals(format) ||
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"mpc".equals(format) ||
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"mp+".equals(format) ||
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"ape".equals(format) ||
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"wma".equals(format);
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}
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/**
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* Returns whether cover art image data is available in the given file.
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*
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* @param file The music file.
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* @return Whether cover art image data is available.
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*/
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public boolean isImageAvailable(MediaFile file) {
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try {
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return getArtwork(file) != null;
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} catch (Throwable x) {
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LOG.warn("Failed to find cover art tag in " + file, x);
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return false;
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}
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}
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public Artwork getArtwork(MediaFile file) throws Exception {
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AudioFile audioFile = AudioFileIO.read(file.getFile());
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Tag tag = audioFile.getTag();
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return tag == null ? null : tag.getFirstArtwork();
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}
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}
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