/// <summary>
/// Deserializes the given <see cref="TransportMessage"/> back into a <see cref="Message"/>
/// </summary>
public async Task <Message> Deserialize(TransportMessage transportMessage)
{
var contentType = transportMessage.Headers.GetValue(Headers.ContentType);
// Optimize default case by using the same _enconding instance.
if (contentType == JsonUtf8ContentType)
{
return(GetMessage(transportMessage, _encoding));
}
if (contentType.StartsWith(JsonContentType))
{
var encoding = EncodingUtils.GetEncoding(contentType);
return(GetMessage(transportMessage, encoding));
}
throw new FormatException($"Unknown content type: '{contentType}' - must be '{JsonUtf8ContentType}' for the JSON serialier to work");
}
void MapContentType(Dictionary <string, string> headers)
{
string contentType;
if (!headers.TryGetValue(Headers.ContentType, out contentType))
{
return;
}
var charset = EncodingUtils.GetCharset(contentType);
if (charset == null)
{
throw new FormatException($"Could not find 'charset' property in the content type: '{contentType}'");
}
headers["rebus-content-type"] = "text/json";
headers["rebus-encoding"] = charset;
}
