private async Task GetHalcyonGroupHash(HttpListenerContext context, HttpListenerRequest request)
{
//halcyon geometry is coming in as a primitive flatbuffer object
//as binary in the body. deserialize and hash
ByteBuffer body = await StreamUtil.ReadStreamFullyAsync(request.InputStream);
ulong hash = 0;
//The hashing is CPU intensive. Use a thread task
await Task.Run(() =>
{
var group = HalcyonGroup.GetRootAsHalcyonGroup(body);
var sog = Mapper.MapFlatbufferGroupToSceneObjectGroup(group);
hash = _hasher.GetGroupHash(sog);
});
context.Response.StatusCode = 200;
context.Response.AddHeader("Content-Type", "text/plain");
byte[] hashText = Encoding.UTF8.GetBytes(hash.ToString());
await context.Response.OutputStream.WriteAsync(hashText, 0, hashText.Length);
await context.Response.OutputStream.FlushAsync();
context.Response.Close();
}
private async Task ConvertHalcyonGroupToBabylon(HttpListenerContext context, HttpListenerRequest request)
{
//halcyon gemoetry is coming in as a primitive group flatbuffer object
//as binary in the body. deserialize and convert using the prim exporter
ByteBuffer body = await StreamUtil.ReadStreamFullyAsync(request.InputStream);
ExportResult babylonExport = null;
Tuple <byte[], int, int> babylonFlatbuffer = null;
//The actual conversion is CPU intensive. Use a thread task
await Task.Run(() =>
{
var group = HalcyonGroup.GetRootAsHalcyonGroup(body);
var sog = Mapper.MapFlatbufferGroupToSceneObjectGroup(group);
var displayData = GroupLoader.Instance.GroupDisplayDataFromSOG(UUID.Zero, new GroupLoader.LoaderParams(),
sog, null, null, null);
BabylonFlatbufferFormatter formatter = new BabylonFlatbufferFormatter();
babylonExport = formatter.Export(displayData);
babylonFlatbuffer = babylonExport.FaceBlob;
});
context.Response.StatusCode = 200;
context.Response.AddHeader("Content-Type", "application/octet-stream");
context.Response.AddHeader("Etag", babylonExport.Hash.ToString());
await context.Response.OutputStream.WriteAsync(babylonFlatbuffer.Item1, babylonFlatbuffer.Item2,
babylonFlatbuffer.Item3);
context.Response.Close();
}
