public override void Upload(MediaContent content, Stream source, string extension, bool uploadAndReplace)
{
if (content is Image)
{
ImageUploadingEvent eventArgs = new ImageUploadingEvent
{
RawImageStream = source,
ImageContentItem = content as Image
};
this.OnImageUploading(eventArgs);
if (eventArgs.RawImageChanged)
{
// Using a temp MemoryStream in order to prevent a closing/disposing
// the Stream or Image (image obj which has been created from that stream and in case of disposing the image it will also dispose the stream)
// earlier and causing a "A generic error occurred in GDI+" exception.
using (MemoryStream tempStream = new MemoryStream())
{
eventArgs.RawImageStream.CopyTo(tempStream);
base.Upload(content, tempStream, extension);
}
this.OnImageUploaded(new ImageUploadedEvent()
{
RawImageStream = eventArgs.RawImageStream,
ImageContentItem = content as Image
});
return;
}
}
base.Upload(content, source, extension, uploadAndReplace);
}
protected virtual void OnImageUploading(ImageUploadingEvent eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentException("eventArgs");
}
EventHub.Raise(eventArgs);
}
private void HandleImageUploadingEvent(ImageUploadingEvent imageUploadingEvent)
{
if (imageUploadingEvent == null)
{
throw new ArgumentNullException("imageUploadingEvent");
}
var cognitiveImageProcessors = ObjectFactory.Container.ResolveAll <ICognitiveImageProcessor>();
if (cognitiveImageProcessors != null && cognitiveImageProcessors.Any())
{
foreach (ICognitiveImageProcessor cognitiveImageProcessor in cognitiveImageProcessors)
{
if (cognitiveImageProcessor.CanProcess())
{
cognitiveImageProcessor.Process(imageUploadingEvent.ImageContentItem, imageUploadingEvent.RawImageStream);
}
}
}
}