/// <summary>
/// Static method <c>ToBook</c> accepts some csv data from the
/// data file and deserialises it into an instance of a
/// LibraryBook class.
/// </summary>
/// <param name="csvData">The commas separated data (1 line)</param>
/// <param name="factory">concrete instance of the LibraryBookFactory class.</param>
/// <returns>A populated instance of a LibraryBook class.</returns>
public static LibraryBook ToBook(string csvData, LibraryBookFactory factory)
{
// Create an instance of LibraryBook
LibraryBook book = factory.Create();
// Split the data into individual items.
string[] elements = csvData.Split(',');
// They are held in a strict order so reference by index.
book.ISBN = elements[0].Trim();
book.Title = elements[1].Trim();
book.Author = elements[2].Trim();
book.Synopsis = elements[4].Trim();
book.ImagePath = elements[5].Trim();
// Now split the keywords, they are space separated
// and held in element 3
string[] words = elements[3].Trim().Split(' ');
foreach (string kw in words)
{
book.KeyWords.Add(kw);
}
// Return the book
return book;
}
/// <summary>
/// Ctor: to accept the injected dependencies.
/// </summary>
/// <param name="libraryBookFactory">Concrete instance of the LibraryBookFactory class</param>
public Library(LibraryBookFactory libraryBookFactory)
{
if (libraryBookFactory == null)
throw new ArgumentNullException("LibraryBookFactory", "No library book factory supplied to Db");
_libraryBookFactory = libraryBookFactory;
// Now load the library data.
this.loadData();
}
