Jan R 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);
Can't you do the following?
ServiceHost selfHost = new ServiceHost(typeof(ICalculator), baseAddress);
Michael
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
<http://msdn.microsoft.com/da-dk/library/ms734712%28en-us%29.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);
}
}
------------------------------------------------------------------------
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