[IronPython] How to do the typeof( ) call on an IronPython implemented class in C#?

[sourishkrout]

Hi Jan,

I don't know whether you figured it out yourself in the meantime, but I have
had the same problem today and made it work. So I just wanted to share my
brilliance with you... :-)

Here you go:

clr.GetClrType(CalculatorService)

The clr object offers the "GetClrType" method which returns the type.
I used it in a different context though: XML (De-)Serialization. Worked very
well.

Let me know whether you had success...

- Sebastian


Jan R-2 wrote:
> 
> Hello IronPython Experts.
> 
> 
> How to do the typeof( ) call on an IronPython implemented class in C#?
> 
> The need to do a typeof(..) comes from implementing services in Windows
> Communication Foundation (WCF) in IronPython. The WCF get-statrted sample
> uses the overloaded constructor of the ServiceHost class that takes a
> System.Type:
> 
> ServiceHost selfHost = new ServiceHost(typeof(CalculatorService),
> baseAddress);
> 
> 
> I want to replace the CalculatorService with a IronPython class
> PyCalculator. Note the typeof(...).
> 
>  I have tried the following without success, in order to give an instance
> of
> the IronPython class to the ServiceHost constructor :
> 
> ICalculator pyCalc = (ICalculator)pyr.getInstance("PyCalculator");
> ServiceHost selfHost = new ServiceHost( (object) pyCalc, baseAddress);
> 
> The IronPython class is attached below. The code results in an exception,
> because the attribute InstanceContextMode have to be set to
> InstanceContextMode.Single.
> 
> The WCF get-started sample is here:
> http://msdn.microsoft.com/da-dk/library/ms734712(en-us).aspx
> 
> Can anyone help me out?
> 
> 
> Regards
> Jan Rouvillain
> 
> IronPython code:
> 
> import clr
> clr.AddReference('CalculatorServer')
> from Microsoft.ServiceModel.Samples import ICalculator
> 
> class PyCalculator(ICalculator):
>   "Implements calculator services"
> 
>   def Add(self, a, b):
>     print 'a ' + a + ' +  b ' + b
>     return a+b
> 
>   def Subtract(self, a, b):
>     print 'a ' + a + ' -  b ' + b
>     return a-b
> 
>   def Multiply(self, a, b):
>     print 'a ' + a + ' * b ' + b
>     return a*b
> 
>   def Divide(self, a, b):
>     print 'a ' + a + ' // b ' + b
>     return a/b
> 
> C# interface declaration:
> 
> namespace Microsoft.ServiceModel.Samples
> {
>   [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
>   public interface ICalculator
>   {
>     // Step7: Create the method declaration for the contract.
>     [OperationContract]
>     double Add(double n1, double n2);
>     [OperationContract]
>     double Subtract(double n1, double n2);
>     [OperationContract]
>     double Multiply(double n1, double n2);
>     [OperationContract]
>     double Divide(double n1, double n2);
>   }
> }
> 
> _______________________________________________
> Users mailing list
> Users at lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
> 
> 

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