public static Message AsWcfMessage(this RabbitMqMessage currentRabbitMqMessage, long parentMaxReceivedMessageSize, BufferManager parentBufferManager, MessageEncoderFactory messageEncoderFactory)
{
Debug.Assert(currentRabbitMqMessage != null);
byte[] data;
long bytesTotal;
using (Stream stream = new MemoryStream())
{
stream.Write(currentRabbitMqMessage.Body, 0, currentRabbitMqMessage.Body.Length);
stream.Position = 0;
bytesTotal = stream.Length;
if (bytesTotal > int.MaxValue)
{
throw new CommunicationException(
$"Message of size {bytesTotal} bytes is too large to buffer. Use a streamed transfer instead.");
}
if (bytesTotal > parentMaxReceivedMessageSize)
{
throw new CommunicationException(
$"Message exceeds maximum size: {bytesTotal} > {parentMaxReceivedMessageSize}.");
}
data = parentBufferManager.TakeBuffer((int)bytesTotal);
var bytesRead = 0;
while (bytesRead < bytesTotal)
{
var count = stream.Read(data, bytesRead, (int)bytesTotal - bytesRead);
if (count == 0)
{
throw new CommunicationException($"Unexpected end of message after {bytesRead} of {bytesTotal} bytes.");
}
bytesRead += count;
}
}
var buffer = new ArraySegment <byte>(data, 0, (int)bytesTotal);
var message = messageEncoderFactory.Encoder.ReadMessage(buffer, parentBufferManager);
parentBufferManager.ReturnBuffer(data);
return(message);
}
internal static RabbitMqMessage AsRabbitMqMessage(this Message message)
{
RabbitMqMessage rabbitMsg;
using (Stream stream = new MemoryStream())
{
var writer = XmlWriter.Create(stream);
message.WriteMessage(writer);
writer.Flush();
stream.Position = 0;
var bytes = new byte[stream.Length];
stream.Read(bytes, 0, (int)stream.Length);
var actionComponents = message.Headers.Action.Split('/');
var serviceName = actionComponents[actionComponents.Length - 2];
var correlationId = Guid.NewGuid().ToString();
var replyTopic = $"{serviceName}{ServiceConfiguration.ReplyExchangeSuffix}";
IBasicProperties props = new BasicProperties
{
MessageId = message.Headers.MessageId?.ToString() ?? Guid.NewGuid().ToString(),
CorrelationId = correlationId,
ReplyTo = replyTopic,
Headers = new Dictionary <string, object>()
};
rabbitMsg = new RabbitMqMessage
{
Body = bytes,
Topic = $"{serviceName}{ServiceConfiguration.DirectExchangeSuffix}",
ReplyTopic = replyTopic,
ReplyRoutingKey = "",
RoutingKey = ServiceConfiguration.ServiceProcessingRoute,
Properties = props,
CorrelationId = correlationId
};
}
return(rabbitMsg);
}
