Our policy has its default behavior. All the information is collected, it just is not available to the developer yet. So let’s take care of that.
We already have the basics covered, namely we have an interface ITrackingInformation through which the application developer should have access to the information. All we need to do is to build a bridge between message inspectors and the application code.
On the client the application developer uses the generated client proxy class, thus we need to pass in the tracking information to that object. The class derives from ClientBase<TChannel> and thus inherits the property Endpointof type ServiceEndpoint. This class in turn maintains a collection of endpoint behaviors. With a custom behavior which implements our interface, the developer has the gate to our policy. Going one step further, this behavior can also register a message inspector in IEndpointBehavior.ApplyClientBehavior, which utilizes…
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Elliot Balynn's Blog 
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