In my previous posts about Indigo messaging making use of channels;

A slightly different "hello world" for Indigo

Layers of Indigo

Indigo- Moving on from IInputChannel to IRequestChannel

I went with the default encoding of the messages that were sent on the wire whilst in this posting Layers of Indigo I mentioned that it's possible to plug in an encoder (a class deriving from MessageEncoder with primary methods looking to be ReadMessage, WriteMessage) in order to change the nature of the message on the wire.

One way in which we can alter the encoder is to switch the MessageEncoderFactory property on the HttpListenerFactory/HttpChannelFactory before beginning to make use of it. The 3 supplied variants of MessageEncoderFactory look to be BinaryMessageEncoderFactory, TextMessageEncoderFactory, MtomMessageEncoderFactory.

The "client" side code of my sample now looks like this if I switch in the BinaryMessageEncoderFactory;

                        static void Main(string[] args)

                        {

                                    HttpChannelFactory factory = new HttpChannelFactory();

 

                                    factory.MessageEncoderFactory = new BinaryMessageEncoderFactory();

 

                                    factory.Open();

 

                                    IOutputChannel channel = factory.CreateChannel<IOutputChannel>(

                                                "http://localhost:5050/simpleService");

 

                                    channel.Open();

 

                                    StringReader content = new StringReader("<hello>world</hello>");

 

                                    XmlTextReader reader = new XmlTextReader(content);

 

                                    Message message = Message.CreateMessage("urn:someAction",

                                                reader);

 

                                    channel.Send(message);

 

                                    message.Close();

 

                                    channel.Close();

 

                                    factory.Close();

                        }

The "service" side would also need to be modified to use the same encoder in order to continue to allow these 2 pieces to talk to each other.