| 1 | package org.farng.mp3.lyrics3; |
| 2 | |
| 3 | import org.farng.mp3.AbstractMP3Tag; |
| 4 | import org.farng.mp3.TagException; |
| 5 | import org.farng.mp3.TagNotFoundException; |
| 6 | import org.farng.mp3.id3.ID3v1; |
| 7 | |
| 8 | import java.io.IOException; |
| 9 | import java.io.RandomAccessFile; |
| 10 | |
| 11 | /** |
| 12 | * Super class for both Lyrics3v2 and Lyrics3v2 tags |
| 13 | * |
| 14 | * @author Eric Farng |
| 15 | * @version $Revision: 1.3 $ |
| 16 | */ |
| 17 | public abstract class AbstractLyrics3 extends AbstractMP3Tag { |
| 18 | |
| 19 | /** |
| 20 | * Creates a new AbstractLyrics3 object. |
| 21 | */ |
| 22 | public AbstractLyrics3() { |
| 23 | super(); |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * Creates a new AbstractLyrics3 object. |
| 28 | */ |
| 29 | public AbstractLyrics3(final AbstractLyrics3 copyObject) { |
| 30 | super(copyObject); |
| 31 | } |
| 32 | |
| 33 | public void append(final RandomAccessFile file) throws IOException, TagException { |
| 34 | AbstractLyrics3 oldTag; |
| 35 | try { |
| 36 | oldTag = new Lyrics3v2(file); |
| 37 | oldTag.append(this); |
| 38 | oldTag.write(file); |
| 39 | } catch (TagNotFoundException ex) { |
| 40 | try { |
| 41 | oldTag = new Lyrics3v1(file); |
| 42 | oldTag.append(this); |
| 43 | oldTag.write(file); |
| 44 | } catch (TagNotFoundException ex2) { |
| 45 | this.write(file); |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | public void delete(final RandomAccessFile file) throws IOException { |
| 51 | long filePointer; |
| 52 | ID3v1 id3v1tag = new ID3v1(); |
| 53 | if (seek(file)) { |
| 54 | id3v1tag = id3v1tag.getID3tag(file); |
| 55 | seek(file); |
| 56 | filePointer = file.getFilePointer(); |
| 57 | |
| 58 | // cut off the "LYRICSBEGIN" |
| 59 | filePointer -= 11; |
| 60 | file.setLength(filePointer); |
| 61 | file.seek(file.length()); |
| 62 | if (id3v1tag != null) { |
| 63 | id3v1tag.write(file); |
| 64 | } |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | public void overwrite(final RandomAccessFile file) throws IOException, TagException { |
| 69 | AbstractLyrics3 oldTag; |
| 70 | try { |
| 71 | oldTag = new Lyrics3v2(file); |
| 72 | oldTag.overwrite(this); |
| 73 | oldTag.write(file); |
| 74 | } catch (TagNotFoundException ex) { |
| 75 | try { |
| 76 | oldTag = new Lyrics3v1(file); |
| 77 | oldTag.overwrite(this); |
| 78 | oldTag.write(file); |
| 79 | } catch (TagNotFoundException ex2) { |
| 80 | this.write(file); |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | } |