Nasıl yapılır: Hizmette İletileri Denetleme ve Değiştirme
Bir Windows Communication Foundation (WCF) istemcisi üzerinde gelen veya giden iletileri incelemek veya değiştirmek için bir System.ServiceModel.Dispatcher.IDispatchMessageInspector uygulayıp bunu hizmet çalışma zamanına ekleyebilirsiniz. Daha fazla bilgi için bkz . Dağıtıcıları Genişletme. Hizmetindeki eşdeğer özellik, şeklindedir System.ServiceModel.Dispatcher.IClientMessageInspector.
İletileri incelemek veya değiştirmek için
System.ServiceModel.Dispatcher.IDispatchMessageInspector arabirimini gerçekleştirin.
Hizmet iletisi denetçinizi kolayca eklemek istediğiniz kapsama bağlı olarak bir System.ServiceModel.Description.IServiceBehavior, System.ServiceModel.Description.IEndpointBehaviorveya System.ServiceModel.Description.IContractBehavior arabirimi uygulayın.
yöntemini System.ServiceModel.ServiceHostüzerinde çağırmadan ICommunicationObject.Open önce davranışınızı ekleyin. Ayrıntılar için bkz . Çalışma Zamanını Davranışlarla Yapılandırma ve Genişletme.
Örnek
Aşağıdaki kod örnekleri sırayla gösterilir:
Hizmet denetçisi uygulaması.
Denetçiyi ekleyen bir hizmet davranışı.
Hizmet uygulamasında davranışı yükleyen ve çalıştıran bir yapılandırma dosyası.
#region IDispatchMessageInspector Members
public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, IClientChannel channel, InstanceContext instanceContext)
{
Console.WriteLine("IDispatchMessageInspector.AfterReceiveRequest called.");
return null;
}
public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
Console.WriteLine("IDispatchMessageInspector.BeforeSendReply called.");
}
#endregion
#Region "IDispatchMessageInspector Members"
Public Function AfterReceiveRequest(ByRef request As System.ServiceModel.Channels.Message, _
ByVal channel As IClientChannel, ByVal instanceContext As InstanceContext) _
As Object Implements IDispatchMessageInspector.AfterReceiveRequest
Console.WriteLine("IDispatchMessageInspector.AfterReceiveRequest called.")
Return Nothing
End Function
Public Sub BeforeSendReply(ByRef reply As System.ServiceModel.Channels.Message, ByVal correlationState As Object) _
Implements IDispatchMessageInspector.BeforeSendReply
Console.WriteLine("IDispatchMessageInspector.BeforeSendReply called.")
End Sub
#End Region
#region IServiceBehavior Members
public void AddBindingParameters(
ServiceDescription serviceDescription,
ServiceHostBase serviceHostBase,
System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints,
BindingParameterCollection bindingParameters
)
{ return; }
public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
{
foreach (ChannelDispatcher chDisp in serviceHostBase.ChannelDispatchers)
{
foreach (EndpointDispatcher epDisp in chDisp.Endpoints)
{
epDisp.DispatchRuntime.MessageInspectors.Add(new Inspector());
foreach (DispatchOperation op in epDisp.DispatchRuntime.Operations)
op.ParameterInspectors.Add(new Inspector());
}
}
}
#Region "IServiceBehavior Members"
Public Sub AddBindingParameters(ByVal serviceDescription As ServiceDescription, _
ByVal serviceHostBase As ServiceHostBase, ByVal endpoints As _
System.Collections.ObjectModel.Collection(Of ServiceEndpoint), _
ByVal bindingParameters As BindingParameterCollection) Implements IServiceBehavior.AddBindingParameters
Return
End Sub
Public Sub ApplyDispatchBehavior(ByVal serviceDescription As ServiceDescription, _
ByVal serviceHostBase As ServiceHostBase) Implements _
IServiceBehavior.ApplyDispatchBehavior
For Each chDisp As ChannelDispatcher In serviceHostBase.ChannelDispatchers
For Each epDisp As EndpointDispatcher In chDisp.Endpoints
epDisp.DispatchRuntime.MessageInspectors.Add(New Inspector())
For Each op As DispatchOperation In epDisp.DispatchRuntime.Operations
op.ParameterInspectors.Add(New Inspector())
Next op
Next epDisp
Next chDisp
End Sub
<configuration>
<system.serviceModel>
<services>
<service
name="Microsoft.WCF.Documentation.SampleService"
behaviorConfiguration="metadataSupport">
<host>
<baseAddresses>
<add baseAddress="http://localhost:8080/SampleService" />
</baseAddresses>
</host>
<endpoint
address=""
binding="wsHttpBinding"
contract="Microsoft.WCF.Documentation.ISampleService"
/>
<endpoint
address="mex"
binding="mexHttpBinding"
contract="IMetadataExchange"
/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="metadataSupport">
<serviceMetadata httpGetEnabled="true" httpGetUrl=""/>
<serviceInterceptors />
</behavior>
</serviceBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add
name="serviceInterceptors"
type="Microsoft.WCF.Documentation.InspectorInserter, HostApplication, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"
/>
</behaviorExtensions>
</extensions>
</system.serviceModel>
</configuration>