@Override
public void restore(final JSONObject backup) {
try {
final List<BookSettings> list = new ArrayList<BookSettings>();
final JSONArray books = backup.getJSONArray("books");
if (LengthUtils.isNotEmpty(books)) {
for (int i = 0, n = books.length(); i < n; i++) {
final JSONObject obj = books.getJSONObject(i);
list.add(new BookSettings(obj));
}
}
if (deleteAll()) {
restoreBookSettings(list);
}
SettingsManager.onRecentBooksChanged();
} catch (final JSONException ex) {
SettingsManager.LCTX.e("Error on recent book restoring: " + ex.getMessage());
}
}
@Override
public JSONObject backup() {
final BookBackupType backupType = BackupSettings.current().bookBackup;
final JSONObject root = new JSONObject();
if (backupType == BookBackupType.NONE) {
return root;
}
try {
final JSONArray books = new JSONArray();
root.put("books", books);
final Map<String, BookSettings> m =
backupType == BookBackupType.RECENT ? getRecentBooks(true) : getAllBooks();
for (final BookSettings bs : m.values()) {
final JSONObject obj = bs.toJSON();
books.put(obj);
}
} catch (final JSONException ex) {
SettingsManager.LCTX.e("Error on recent book backup: " + ex.getMessage());
}
return root;
}