Result AddItem(HttpResponseMessage response, Uri uri, CancellationToken token)
{
var timestamp = Timestamp.FromResponse(uri, response);
#if NET5_0
var meta = MetaData.FromEnumerables(response.Headers, response.Content.Headers, response.TrailingHeaders);
#else
var meta = MetaData.FromEnumerables(response.Headers, response.Content.Headers);
#endif
var tempFile = FilePair.GetTemp();
try
{
using var httpStream = response.Content.ReadAsStream(token);
using (var contentFileStream = FileEx.OpenWrite(tempFile.Content))
using (var metaFileStream = FileEx.OpenWrite(tempFile.Meta))
using (var writer = new Utf8JsonWriter(metaFileStream))
{
JsonSerializer.Serialize(writer, meta);
httpStream.CopyTo(contentFileStream);
}
return(BuildResult(timestamp, tempFile));
}
finally
{
tempFile.Delete();
}
}
async Task <Result> InnerAddItemAsync(
CancellationToken token,
Func <CancellationToken, Task <Stream> > httpContentFunc,
MetaData meta,
Timestamp timestamp)
{
var tempFile = FilePair.GetTemp();
try
{
#if NET5_0
await using var httpStream = await httpContentFunc(token);
await using (var contentFileStream = FileEx.OpenWrite(tempFile.Content))
await using (var metaFileStream = FileEx.OpenWrite(tempFile.Meta))
{
#else
using var httpStream = await httpContentFunc(token);
using (var contentFileStream = FileEx.OpenWrite(tempFile.Content))
using (var metaFileStream = FileEx.OpenWrite(tempFile.Meta))
{
#endif
await JsonSerializer.SerializeAsync(metaFileStream, meta, cancellationToken : token);
await httpStream.CopyToAsync(contentFileStream, token);
}
return(BuildResult(timestamp, tempFile));
}
finally
{
tempFile.Delete();
}
}