private async Task WriteMessageInternalAsync(Message message, Stream stream, string startInfo, string boundary, string startUri, bool writeMessageHeaders)
{
if (message == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException(nameof(message)));
}
if (stream == null)
{
throw TraceUtility.ThrowHelperError(new ArgumentNullException(nameof(stream)), message);
}
ThrowIfMismatchedMessageVersion(message);
EventTraceActivity eventTraceActivity = null;
if (WcfEventSource.Instance.MtomMessageEncodingStartIsEnabled())
{
eventTraceActivity = EventTraceActivityHelper.TryExtractActivity(message);
WcfEventSource.Instance.MtomMessageEncodingStart(eventTraceActivity);
}
message.Properties.Encoder = this;
if (MessageLogger.LogMessagesAtTransportLevel)
{
MessageLogger.LogMessage(ref message, MessageLoggingSource.TransportSend);
}
XmlDictionaryWriter xmlWriter = _factory.TakeStreamedWriter(stream, startInfo, boundary, startUri, writeMessageHeaders);
if (_writeEncoding.WebName == "utf-8")
{
await message.WriteMessageAsync(xmlWriter);
}
else
{
await xmlWriter.WriteStartDocumentAsync();
await message.WriteMessageAsync(xmlWriter);
await xmlWriter.WriteEndDocumentAsync();
}
await xmlWriter.FlushAsync();
_factory.ReturnStreamedWriter(xmlWriter);
if (WcfEventSource.Instance.StreamedMessageWrittenByEncoderIsEnabled())
{
WcfEventSource.Instance.StreamedMessageWrittenByEncoder(eventTraceActivity ?? EventTraceActivityHelper.TryExtractActivity(message));
}
}