/// <summary>
/// The load providers.
/// </summary>
/// <exception cref="ProviderException">
/// </exception>
private static void LoadProviders()
{
if (_provider == null)
{
lock (Lock)
{
var section = AppConfig.Instance.Photos;
_providers = new PhotoProviderCollection();
ProvidersHelper.InstantiateProviders(section.Providers, _providers, typeof(PhotoProvider));
_provider = _providers[section.DefaultProvider];
_photoResize = new Dictionary <string, PhotoResize>();
foreach (PhotoResizeElement photoResize in section.PhotoResizes)
{
_photoResize.Add(photoResize.Name, new PhotoResize(photoResize));
}
if (_provider == null)
{
throw new ProviderException("Unable to load default FileSystemProvider");
}
}
}
}
public void LoadImages(string dir, Size csize, List <string> filenames = null, List <string> badfiles = null)
{
images.Clear();
PhotoProvider prov = new PhotoProvider(dir);
List <Task> allTasks = new List <Task>();
SemaphoreSlim throttler = new SemaphoreSlim(8); //max 8 threads
Action <Object> findCornerAction = o => {
String imageFile = (String)o;
var im = new CalibImage(imageFile);
int scale = 1;
while (scale <= 4)
{
try {
Size imSize;
var pic = PhotoProvider.getSingleImage(im.Path, out imSize, scale);
var chessBoard = FindChessboardCorners(pic, csize);
Console.WriteLine(string.Format("found {0} at scale 1/{1}", im.Filename, scale));
im.ImagePoints = chessBoard.Select(f => new PointF(f.X * scale, f.Y * scale)).ToArray();
im.imageSize = imSize;
images.Add(im);
throttler.Release();
return;
}
catch {
if (badfiles != null)
{
images.Add(null);
badfiles.Add(imageFile);
break;
}
Console.WriteLine(string.Format("no chessboard found: {0} at scale 1/{1}", im.Filename, scale));
scale *= 2;
continue;
}
}
throttler.Release();
};
var files = filenames ?? prov.getImageFiles().ToList();
foreach (var imageFile in files)
{
throttler.Wait();
Log.WriteLine(string.Format("searching pattern in {0}", imageFile));
Task t = new Task(findCornerAction, imageFile);
t.Start();
allTasks.Add(t);
}
Task.WhenAll(allTasks).Wait();
}
public void CreateProductServiceAndPhotoProviderInSameDatabase()
{
var builder = new DbContextOptionsBuilder();
builder.UseNpgsql("Host=192.168.1.103; Database=ECommerceTest; Username=postgres; Password=password");
PhotoProviderContext photoProviderContext = new PhotoProviderContext(builder.Options);
PhotoProvider photoProvider = new PhotoProvider(photoProviderContext, "images/");
Task.Run(async() =>
{
await photoProvider.Initialise();
}).GetAwaiter().GetResult();
ProductsContext productsContext =
new ProductsContext(builder.Options);
var productService = new ProductService(productsContext);
Task.Run(async() => { await productService.Initialise(); }).GetAwaiter().GetResult();
}
/// <summary>
/// The load providers.
/// </summary>
/// <exception cref="ProviderException">
/// </exception>
private static void LoadProviders()
{
if (_provider == null)
{
lock (Lock)
{
var section = AppConfig.Instance.Photos;
_providers = new PhotoProviderCollection();
ProvidersHelper.InstantiateProviders(section.Providers, _providers, typeof(PhotoProvider));
_provider = _providers[section.DefaultProvider];
_photoResize = new Dictionary<string, PhotoResize>();
foreach (PhotoResizeElement photoResize in section.PhotoResizes)
{
_photoResize.Add(photoResize.Name, new PhotoResize(photoResize));
}
if (_provider == null)
{
throw new ProviderException("Unable to load default FileSystemProvider");
}
}
}
}
