public static async Task <ResultT> LoadAsync <ResultT>(
this ICacheSourceLayer layer,
IDeserializer <ResultT> deserializer,
ContentReference fileRef,
IProgress prog = null)
{
if (layer is null)
{
throw new ArgumentNullException(nameof(layer));
}
if (deserializer is null)
{
throw new ArgumentNullException(nameof(deserializer));
}
if (fileRef is null)
{
throw new ArgumentNullException(nameof(fileRef));
}
var progs = prog.Split("Read", "Decode");
using var stream = await layer
.GetStreamAsync(fileRef, progs[0])
.ConfigureAwait(false);
using var progStream = new ProgressStream(stream, stream.Length, progs[1], false);
return(deserializer.Deserialize(progStream));
}
public static async Task SendContentAsync(
this HttpListenerResponse response,
ICacheSourceLayer layer,
ContentReference fileRef)
{
if (layer is null)
{
throw new ArgumentNullException(nameof(layer));
}
if (fileRef is null)
{
throw new ArgumentNullException(nameof(fileRef));
}
response.SetFileName(fileRef.ContentType, fileRef.FileName);
using var stream = await layer
.GetStreamAsync(fileRef, null)
.ConfigureAwait(false);
await response
.SendStreamAsync(fileRef.ContentType, stream)
.ConfigureAwait(false);
}
public static Task <Stream> OpenAsync(
this ICacheSourceLayer layer,
ContentReference fileRef)
{
if (layer is null)
{
throw new ArgumentNullException(nameof(layer));
}
if (fileRef is null)
{
throw new ArgumentNullException(nameof(fileRef));
}
return(layer.GetStreamAsync(fileRef, null));
}
public static async Task CopyToAsync(
this ICacheSourceLayer fromLayer,
ContentReference fromRef,
ICacheDestinationLayer toLayer,
ContentReference toRef,
IProgress prog = null)
{
if (fromLayer is null)
{
throw new ArgumentNullException(nameof(fromLayer));
}
if (fromRef is null)
{
throw new ArgumentNullException(nameof(fromRef));
}
if (toLayer is null)
{
throw new ArgumentNullException(nameof(toLayer));
}
if (toRef is null)
{
throw new ArgumentNullException(nameof(toRef));
}
if (fromLayer.IsCached(fromRef))
{
using var inStream = await fromLayer
.GetStreamAsync(fromRef, prog)
.ConfigureAwait(false);
using var outStream = toLayer.Create(toRef);
await inStream
.CopyToAsync(outStream)
.ConfigureAwait(false);
}
}