public static List<UserBookDto> changeToDto(User user, List<Book> books) {
List<UserBookDto> dto = new ArrayList<UserBookDto>();
for (Book book : books) {
UserBookDto d = new UserBookDto();
d.setUsername(user.getUsername());
d.setIsreturn("N");
d.setBookname(book.getBookname());
dto.add(d);
}
return dto;
}
public static Object[][] changeToArray(List<UserBookDto> dto, String[] attributes) {
Object[][] result = new Object[dto.size()][attributes.length];
for (int i = 0; i < dto.size(); i++) {
UserBookDto b = dto.get(i);
for (int j = 0; j < attributes.length; j++) {
try {
result[i][j] =
b.getClass().getMethod(createGetMethod(attributes[j]), null).invoke(b, null);
} catch (IllegalAccessException
| IllegalArgumentException
| InvocationTargetException
| NoSuchMethodException
| SecurityException e) {
e.printStackTrace();
}
}
}
return result;
}