protected virtual void WriteMessage()

in src/main/csharp/Protocol/StompWireFormat.cs [370:453]
70 lines of code
16 McCabe index (conditional complexity)

        protected virtual void WriteMessage(Message command, BinaryWriter dataOut)
        {
            StompFrame frame = new StompFrame("SEND", encodeHeaders);
            if(command.ResponseRequired)
            {
                frame.SetProperty("receipt", command.CommandId);
            }
            
            frame.SetProperty("destination", Destination.ConvertToStompString(command.Destination));
            
            if(command.ReplyTo != null)
            {
                frame.SetProperty("reply-to", Destination.ConvertToStompString(command.ReplyTo));
            }
            if(command.CorrelationId != null )
            {
                frame.SetProperty("correlation-id", command.CorrelationId);
            }
            if(command.Expiration != 0)
            {
                frame.SetProperty("expires", command.Expiration);
            }
            if(command.Timestamp != 0)
            {
                frame.SetProperty("timestamp", command.Timestamp);
            }
            if(command.Priority != 4)
            {                
                frame.SetProperty("priority", command.Priority);
            }
            if(command.Type != null)
            {
                frame.SetProperty("type", command.Type);
            }
            if(command.TransactionId!=null)
            {
                frame.SetProperty("transaction", command.TransactionId.ToString());
            }

            frame.SetProperty("persistent", command.Persistent.ToString().ToLower());
            frame.SetProperty("NMSXDeliveryMode", command.Persistent.ToString().ToLower());

			if(command.NMSXGroupID != null)
			{
				frame.SetProperty("JMSXGroupID", command.NMSXGroupID);
				frame.SetProperty("NMSXGroupID", command.NMSXGroupID);
                frame.SetProperty("JMSXGroupSeq", command.NMSXGroupSeq);
                frame.SetProperty("NMSXGroupSeq", command.NMSXGroupSeq);
			}

            // Perform any Content Marshaling.
            command.BeforeMarshall(this);
            
            // Store the Marshaled Content.
            frame.Content = command.Content;

            if(command is BytesMessage)
            {
                if(command.Content != null && command.Content.Length > 0)
                {
                    frame.SetProperty("content-length", command.Content.Length);
                }

                frame.SetProperty("transformation", "jms-byte");
            }
            else if(command is MapMessage)
            {
                frame.SetProperty("transformation", this.mapMarshaler.Name);
            }
			
            // Marshal all properties to the Frame.
            IPrimitiveMap map = command.Properties;
            foreach(string key in map.Keys)
            {
                frame.SetProperty(key, map[key]);
            }

            if(Tracer.IsDebugEnabled)
            {
                Tracer.Debug("StompWireFormat - Writing " + frame.ToString());
            }

            frame.ToStream(dataOut);
        }