public async Task Invoke(IDictionary <string, object> environment)
{
IEncoding compression = SelectCompression(environment);
if (compression == null)
{
await _next(environment);
return;
}
ICompressedStorage storage = GetStorage(environment);
if (storage == null)
{
await _next(environment);
return;
}
var context = new StaticCompressionContext(environment, _options, compression, storage);
context.Attach();
try
{
await _next(environment);
await context.Complete();
}
catch (Exception)
{
context.Detach();
throw;
}
}
public StaticCompressionContext(IDictionary <string, object> environment, StaticCompressionOptions options, IEncoding encoding, ICompressedStorage storage)
{
_environment = environment;
_options = options;
_encoding = encoding;
_encodingSuffix = "^" + _encoding.Name;
_encodingSuffixQuote = "^" + _encoding.Name + "\"";
_storage = storage;
_request = new OwinRequest(environment);
_response = new OwinResponse(environment);
}
public StaticCompressionContext(IDictionary<string, object> environment, StaticCompressionOptions options, IEncoding encoding, ICompressedStorage storage)
{
_environment = environment;
_options = options;
_encoding = encoding;
_encodingSuffix = "^" + _encoding.Name;
_encodingSuffixQuote = "^" + _encoding.Name + "\"";
_storage = storage;
_request = new OwinRequest(environment);
_response = new OwinResponse(environment);
}
private ICompressedStorage GetStorageOnce(IDictionary <string, object> environment)
{
ICompressedStorage storage = _options.CompressedStorageProvider.Create();
var onAppDisposing = new OwinRequest(environment).Get <CancellationToken>("host.OnAppDisposing");
if (onAppDisposing != CancellationToken.None)
{
onAppDisposing.Register(storage.Dispose);
}
return(storage);
}
public Task Invoke(IDictionary <string, object> environment)
{
IEncoding compression = SelectCompression(environment);
if (compression == null)
{
return(_next(environment));
}
ICompressedStorage storage = GetStorage(environment);
if (storage == null)
{
return(_next(environment));
}
var context = new StaticCompressionContext(environment, _options, compression, storage);
context.Attach();
return(_next(environment)
.Then((Func <Task>)context.Complete)
.Catch(context.Complete));
}