Unable to make IDispatchMessageInspector work - wcf

Question

I need to play with request header in a REST, Json, WCF web service.
I create my IDispatchMessageInspector
public class HeaderInspector : IDispatchMessageInspector
{
public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel, System.ServiceModel.InstanceContext instanceContext)
{
int ind = request.Headers.FindHeader("xxxxx", "");
return null;
}
public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
}
}
Then a endpointbehavio to attach the inspector to endpoints :
public class HeaderInspectorBehavior : IEndpointBehavior
{
public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
{
}
public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
{
}
public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
{
HeaderInspector headerinsp = new HeaderInspector();
endpointDispatcher.DispatchRuntime.MessageInspectors.Add(new HeaderInspector());
}
public void Validate(ServiceEndpoint endpoint)
{
}
}
And finally a BehaviorExtensionElement :
public class MyExtension : BehaviorExtensionElement
{
public override Type BehaviorType
{
get { return typeof(HeaderInspectorBehavior); }
}
protected override object CreateBehavior()
{
return new HeaderInspectorBehavior();
}
}
Those classes being in the same file / namespace PDM.WebService
My config is :
<behaviors>
<endpointBehaviors>
<behavior name="RestBehavior">
<HeaderInspectorBehavior/>
<webHttp helpEnabled="true" defaultOutgoingResponseFormat="Json" faultExceptionEnabled="true" automaticFormatSelectionEnabled="false" />
</behavior>
</endpointBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add name="HeaderInspectorBehavior" type="PDM.WebService.MyExtension, PDM.WebService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
</behaviorExtensions>
</extensions>
Everything compile well, at execution i can catch the execution of method "public override Type BehaviorType",
but no other methods of the code are fired after that (i sent request and i got response, the service respond well).
i set debug point in every methods nothing else execute ! (especially ApplyDispatchBehavior).
Can somebody point out what i'm missing ?

Answer 1

Refer CreateBehavior() is not invoked for a similar issue.
Ensure that name of your service element is corresponding to mynamespace.myservicename
The service will be providing correct response even if you don't have the correct service name; but the CreateBehavior() will be called only when you have the correct name for the service element.
Example
<service
name="WcfServiceApp001.Service1"
behaviorConfiguration="InternalPayrollBehavior">
<endpoint address="" binding="basicHttpBinding"
behaviorConfiguration="EndpointBehavior"
contract="WcfServiceApp001.IService1"
/>
</service>