public DataContextTest()
{
// TODO: Should be in the TestIntialize MEthod but that doesn't seem to get called.
FileSystem = new InMemoryFileSystem();
Context = new DataContext(FileSystem);
}
/// <summary>
/// This method is called when a book package has been constructed, we then tell
/// the datacontext to complete loading the book contents (xml, ncx etc.)
/// </summary>
/// <param name="package">Book package to load the contents of.</param>
private void SetCurrentBook(IPackage package)
{
DataContext store = new DataContext(base.MainState.BookFileSystem);
store.BookCreated += store_BookCreated;
store.GetBookAsync(package);
}
private void SetUp()
{
// Never fires!
FileSystem = new InMemoryFileSystem();
Context = new DataContext(FileSystem);
}
/// <summary>
/// Initiates the processing of loading a book (from a zip stream) into the FileSystem, by loading and creating
/// the book package and passing that off to the datacontext to load the rest of the book.
/// </summary>
/// <param name="zipStream">FileStream of the zip file to load the book from.</param>
private void LoadBook(FileStream zipStream)
{
// The DataContext is instatiated with a IFileSystem implementation that will determine
// where the books are stored to and retrieved from. For example, IsolatedStorage/ServerStorage
DataContext store = new DataContext(base.MainState.BookFileSystem);
// Listen to the progress the store DataContext makes
store.ProgressChanged += store_ProgressChanged;
IPackageInspector inspector;
// To ensure the FileStream is property disposed wrap it in
// a using statement.
using (FileStream fileStream = zipStream)
{
inspector = new PackageInspector();
// The inspector will pass on any progress updates to this event. We subscribe to
// it from the View to be able to update the display.
inspector.ProgressChanged += inspector_ProgressChanged;
// Process the package - this will perform an initial parse over the zip file
// to derive some basic information like its version, the bookId and Filecount.
// This method will raise some ProgressChanged events for us to update the UI.
inspector.ProcessPackage(fileStream);
// Check the file was OK.
if(!inspector.IsValid)
{
// TODO: Could be enhanced to return all the errors.
// While there could actally be more than one error in ValidationErrors
// we are only going to notify of the first.
throw new InvalidPackageException(inspector.ValidationErrors[0]);
}
else
{
// Save the book files to the store - don't bother replacing if the
// book is already there. Again this will take some time and will raise
// ProgressChanged events for us to update the UI with progress.
store.LoadZipPackage(inspector, false);
}
}
// Set the CurrentBook on View
SetCurrentBook(inspector.Package);
}
