MyBooksController.java 文件源码

private SortedSet<Book> loadMyBooks(PortletPreferences prefs) {
    SortedSet<Book> myBooks = new TreeSet<Book>();
    String[] keys = prefs.getValues("myBooks", null);
    if (keys != null) {
        for (int i = 0; i < keys.length; i++) {
            try {
                Integer key = Integer.valueOf(keys[i]);
                Book book = bookService.getBook(key);
                if (book != null)
                    myBooks.add(book);
            } catch (NumberFormatException ex) {
            }
        }
    }
    return myBooks;
}