Creating a custom proxy class

Instead of using the proxy generation features of Visual Studio you can create a custom proxy in .NET 3.0 to handle all of your needs in a more maintainable manor and with less code. This method works best when you have access to the interfaces that created the service.

Here is an example:

 1Namespace TeamFoundation.Proxies
 2
 3    Public Class TeamServersClient
 4        Inherits System.ServiceModel.DuplexClientBase(Of Services.Contracts.ITeamServers)
 5        Implements RDdotNet.Proxies.IClientProxy
 6        Implements Services.Contracts.ITeamServers
 7
 8        Public Sub New(ByVal callbackInstance As System.ServiceModel.InstanceContext, ByVal binding As System.ServiceModel.Channels.Binding, ByVal remoteAddress As System.ServiceModel.EndpointAddress)
 9            MyBase.New(callbackInstance, binding, remoteAddress)
10        End Sub
11
12        Public Sub AddServer(ByVal TeamServerName As String, ByVal TeamServerUri As String) Implements Services.Contracts.ITeamServers.AddServer
13            MyBase.Channel.AddServer(TeamServerName, TeamServerUri)
14        End Sub
15
16        Public Function GetServers() As String() Implements Services.Contracts.ITeamServers.GetServers
17            Return MyBase.Channel.GetServers
18        End Function
19
20        Public Sub RemoveServer(ByVal TeamServerName As String) Implements Services.Contracts.ITeamServers.RemoveServer
21            MyBase.Channel.RemoveServer(TeamServerName)
22        End Sub
23
24        Public Function ServceUrl() As System.Uri Implements Services.Contracts.ITeamServers.ServceUrl
25            Return MyBase.Channel.ServceUrl()
26        End Function
27
28    End Class
29
30End Namespace

Because your classes implements the service’s interface when that interface changes you will be notified in Visual Studio that this has happened. This is a boon during development as changes can happen often.

This particular class is a duplex proxy, so communication can go both ways. You can download the source code for this from here .

Technorati Tags: .NET   SOA