private bool TryComputeCloudEventContentLength(CloudEventContent content, out long length)
{
MethodInfo methodInfo = typeof(CloudEventContent).GetMethod(nameof(TryComputeLength), BindingFlags.Instance | BindingFlags.NonPublic);
length = 0;
if (methodInfo is null)
{
return(false);
}
var parameters = new object[] { length };
var result = (bool)methodInfo.Invoke(content, parameters);
length = (long)parameters[0];
return(result);
}
/// <summary>Serialize the HTTP content to a stream as an asynchronous operation.</summary>
/// <param name="stream">The target stream.</param>
/// <param name="context">Information about the transport (channel binding token, for example). This parameter may be null.</param>
/// <returns>The task object representing the asynchronous operation.</returns>
protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
{
Guard.NotNull(stream, nameof(stream));
await EncodeStringToStreamAsync(stream, "[", cancellationToken : default);
for (int i = 0, l = _contents.Count(); i < l; i++)
{
CloudEventContent content = _contents.ElementAt(i);
await content.CopyToAsync(stream, context);
bool isNotLastElement = i + 1 < l;
if (isNotLastElement)
{
await EncodeStringToStreamAsync(stream, ",", cancellationToken : default);
}
}
await EncodeStringToStreamAsync(stream, "]", cancellationToken : default);
Headers.ContentType = MediaTypeHeaderValue.Parse(CloudEventBatchContentType);
}
