/**
* Write this tag to the file, replacing any tag previously existing
*
* @param file
* @throws IOException
*/
public void write(RandomAccessFile file) throws IOException {
logger.config("Saving ID3v1 tag to file");
byte[] buffer = new byte[TAG_LENGTH];
int i;
String str;
delete(file);
file.seek(file.length());
// Copy the TAGID into new buffer
System.arraycopy(TAG_ID, FIELD_TAGID_POS, buffer, FIELD_TAGID_POS, TAG_ID.length);
int offset = FIELD_TITLE_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveTitle()) {
str = ID3Tags.truncate(title, FIELD_TITLE_LENGTH);
for (i = 0; i < str.length(); i++) {
buffer[i + offset] = (byte) str.charAt(i);
}
}
offset = FIELD_ARTIST_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveArtist()) {
str = ID3Tags.truncate(artist, FIELD_ARTIST_LENGTH);
for (i = 0; i < str.length(); i++) {
buffer[i + offset] = (byte) str.charAt(i);
}
}
offset = FIELD_ALBUM_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveAlbum()) {
str = ID3Tags.truncate(album, FIELD_ALBUM_LENGTH);
for (i = 0; i < str.length(); i++) {
buffer[i + offset] = (byte) str.charAt(i);
}
}
offset = FIELD_YEAR_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveYear()) {
str = ID3Tags.truncate(year, AbstractID3v1Tag.FIELD_YEAR_LENGTH);
for (i = 0; i < str.length(); i++) {
buffer[i + offset] = (byte) str.charAt(i);
}
}
offset = FIELD_COMMENT_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveComment()) {
str = ID3Tags.truncate(comment, FIELD_COMMENT_LENGTH);
for (i = 0; i < str.length(); i++) {
buffer[i + offset] = (byte) str.charAt(i);
}
}
offset = FIELD_GENRE_POS;
if (TagOptionSingleton.getInstance().isId3v1SaveGenre()) {
buffer[offset] = genre;
}
file.write(buffer);
logger.config("Saved ID3v1 tag to file");
}
/**
* Set year
*
* @param year
*/
public void setYear(String year) {
this.year = ID3Tags.truncate(year, FIELD_YEAR_LENGTH);
}
/**
* Set Title
*
* @param title
*/
public void setTitle(String title) {
if (title == null) {
throw new IllegalArgumentException(ErrorMessage.GENERAL_INVALID_NULL_ARGUMENT.getMsg());
}
this.title = ID3Tags.truncate(title, FIELD_TITLE_LENGTH);
}
/**
* Set Comment
*
* @param comment
* @throws IllegalArgumentException if comment null
*/
public void setComment(String comment) {
if (comment == null) {
throw new IllegalArgumentException(ErrorMessage.GENERAL_INVALID_NULL_ARGUMENT.getMsg());
}
this.comment = ID3Tags.truncate(comment, FIELD_COMMENT_LENGTH);
}
/**
* Set Artist
*
* @param artist
*/
public void setArtist(String artist) {
if (artist == null) {
throw new IllegalArgumentException(ErrorMessage.GENERAL_INVALID_NULL_ARGUMENT.getMsg());
}
this.artist = ID3Tags.truncate(artist, FIELD_ARTIST_LENGTH);
}
/**
* Set Album
*
* @param album
*/
public void setAlbum(String album) {
if (album == null) {
throw new IllegalArgumentException(ErrorMessage.GENERAL_INVALID_NULL_ARGUMENT.getMsg());
}
this.album = ID3Tags.truncate(album, FIELD_ALBUM_LENGTH);
}