/// <summary>
/// Load books from the repo
/// </summary>
/// <param name="repo">The repo to load from</param>
/// <exception cref="ArgumentNullException">Throws when repo is null</exception>
public void LoadFrom(IBookListStorage repo)
{
if (repo == null)
{
throw new ArgumentNullException($"{nameof(repo)} must be not null");
}
books = new List <Book>(repo.ReadBooks());
}
//private IBookListStorage<Book> BookListStorage { get; }
#endregion
#region .ctor
/// <summary>
/// .ctor
/// </summary>
/// <param name="bookListStorage">List of books.</param>
public BookListService(IBookListStorage <Book> bookListStorage)
{
if (bookListStorage == null)
{
throw new ArgumentNullException();
}
try
{
BookList = (List <Book>)bookListStorage.ReadBooks();
}
catch (Exception ex)
{
throw new BookListServiceException("Unable to download from file: ", ex);
}
}