private void RenderTask(CancellationToken token)
{
while (!token.IsCancellationRequested)
{
try
{
var points = _reader.Get(unit.it);
if (points.HasValue)
{
var bitmap = new Bitmap(1280, 1024);
bitmap = Heatmap.CreateIntensityMask(bitmap, points.Value.Points);
var heatmap = Heatmap.Colorize(bitmap, 255);
_mapWriter.AddOrUpdate(unit.it, () => new HeatMapView(),
v =>
{
v.Heatmap = heatmap;
v.Thumbnail = new Bitmap(heatmap, 320, 256);
});
}
token.WaitHandle.WaitOne(5000);
}
catch (Exception ex)
{
Trace.WriteLine(ex);
token.WaitHandle.WaitOne(2000);
}
}
}
public IEnumerable <RecipeView> GetByName(int pagesize, int skip = 0)
{
var index = indexReader.Get(unit.it).Value.Index;
var keys = index.Keys.OrderBy(x => x).Skip(skip).Take(pagesize);
var ids = keys.SelectMany(k => index[k]);
var views = ids.Select(id =>
{
RecipeView view;
reader.TryGet(new RecipeId(id), out view);
return(view);
});
return(views);
}
public override void Handle(IHttpContext context)
{
var view = _reader.Get(unit.it);
if (view.HasValue)
{
if (context.GetRequestUrl().Contains("thumb"))
{
view.Value.Thumbnail.Save(context.Response.OutputStream, ImageFormat.Jpeg);
}
else
{
view.Value.Heatmap.Save(context.Response.OutputStream, ImageFormat.Jpeg);
}
}
else
{
ReturnEmptyImage(context);
}
context.SetStatusTo(HttpStatusCode.OK);
}