1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
This file is part of Subsonic.
Subsonic 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.
Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>.
Copyright 2009 (C) Sindre Mehus
*/
package net.sourceforge.subsonic.ajax;
import net.sourceforge.subsonic.Logger;
import net.sourceforge.subsonic.domain.MediaFile;
import net.sourceforge.subsonic.service.MediaFileService;
import net.sourceforge.subsonic.service.metadata.MetaData;
import net.sourceforge.subsonic.service.metadata.MetaDataParser;
import net.sourceforge.subsonic.service.metadata.MetaDataParserFactory;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang.ObjectUtils;
import org.apache.commons.lang.StringUtils;
/**
* Provides AJAX-enabled services for editing tags in music files.
* This class is used by the DWR framework (http://getahead.ltd.uk/dwr/).
*
* @author Sindre Mehus
*/
public class TagService {
private static final Logger LOG = Logger.getLogger(TagService.class);
private MetaDataParserFactory metaDataParserFactory;
private MediaFileService mediaFileService;
/**
* Updated tags for a given music file.
*
* @param id The ID of the music file.
* @param track The track number.
* @param artist The artist name.
* @param album The album name.
* @param title The song title.
* @param year The release year.
* @param genre The musical genre.
* @return "UPDATED" if the new tags were updated, "SKIPPED" if no update was necessary.
* Otherwise the error message is returned.
*/
public String setTags(int id, String track, String artist, String album, String title, String year, String genre) {
track = StringUtils.trimToNull(track);
artist = StringUtils.trimToNull(artist);
album = StringUtils.trimToNull(album);
title = StringUtils.trimToNull(title);
year = StringUtils.trimToNull(year);
genre = StringUtils.trimToNull(genre);
Integer trackNumber = null;
if (track != null) {
try {
trackNumber = new Integer(track);
} catch (NumberFormatException x) {
LOG.warn("Illegal track number: " + track, x);
}
}
Integer yearNumber = null;
if (year != null) {
try {
yearNumber = new Integer(year);
} catch (NumberFormatException x) {
LOG.warn("Illegal year: " + year, x);
}
}
try {
MediaFile file = mediaFileService.getMediaFile(id);
MetaDataParser parser = metaDataParserFactory.getParser(file.getFile());
if (!parser.isEditingSupported()) {
return "Tag editing of " + FilenameUtils.getExtension(file.getPath()) + " files is not supported.";
}
MetaData existingMetaData = parser.getRawMetaData(file.getFile());
if (StringUtils.equals(artist, existingMetaData.getArtist()) &&
StringUtils.equals(album, existingMetaData.getAlbumName()) &&
StringUtils.equals(title, existingMetaData.getTitle()) &&
ObjectUtils.equals(yearNumber, existingMetaData.getYear()) &&
StringUtils.equals(genre, existingMetaData.getGenre()) &&
ObjectUtils.equals(trackNumber, existingMetaData.getTrackNumber())) {
return "SKIPPED";
}
MetaData newMetaData = new MetaData();
newMetaData.setArtist(artist);
newMetaData.setAlbumName(album);
newMetaData.setTitle(title);
newMetaData.setYear(yearNumber);
newMetaData.setGenre(genre);
newMetaData.setTrackNumber(trackNumber);
parser.setMetaData(file, newMetaData);
mediaFileService.refreshMediaFile(file);
return "UPDATED";
} catch (Exception x) {
LOG.warn("Failed to update tags for " + id, x);
return x.getMessage();
}
}
public void setMediaFileService(MediaFileService mediaFileService) {
this.mediaFileService = mediaFileService;
}
public void setMetaDataParserFactory(MetaDataParserFactory metaDataParserFactory) {
this.metaDataParserFactory = metaDataParserFactory;
}
}
|
