Hi,
I'm trying to develop a script engine with debugging propabilites in Visual
Studio in IronPython. My application is a client-server scenario. The scripts
normally run hosted on a server and some objects like my OrderController are
injected via ScriptScope and SetVariable method (this is my context of script).
The server has access to the DB and so on. For debugging (on any developer
machine) I connect via remoting to get an OrderController from server and try
to inject this as SetVariable in script. My Problem is, that this doesn't work
directly. Example:
// Get the OrderController (Proxy) via Remoting:
IOrderController service =
(IOrderController)Activator.GetObject(typeof(IOrderController),
"tcp://localhost:9898/Server/OrderController");
// Create scope and set OrderController as global variable:
ScriptScope scope = runtime.CreateScope();
scope.SetVariable("OrderController", service); // -> This throws an
SerializationException because many classes are not marked as serializable!
// I have tried to unmarshal my OrderController (Proxy) and inject this
serviceProxy. Example:
System.Runtime.Remoting.ObjectHandle handle =
(System.Runtime.Remoting.ObjectHandle) service;
object unmarshaledService =
System.Runtime.Remoting.RemotingServices.Unmarshal(handle.CreateObjRef(typeof(IOrderController)),true);
IOrderController serviceProxy = (IOrderController)unmarshaledService ;
scope.SetVariable("OrderController",serviceProxy);
This works for the OrderController, but not for another MarshalByRefObjects
which are Members of the OrderController. In my example is the Member
'SubObject' an another MarshalByRef object like the OrderController which has
string Member 'Name'. Access in script to Member 'Name' fail. Example in python:
print OrderController.SubObject.Name // -> This throws an
MissingMemberException. 'MarshalByRefObject' has no attribute 'Name'.
but in C# in my class which is hosting the script before I set the serviceProxy
via SetVariable and run the script I can run
Console.WriteLine(serviceProxy.SubObject.Name) without Problems.
What can I do? I wouldn't create the OrderController in script via remoting
because Script should run without changes with OrderController as normal object
and with OrderController as RemoteObject. So developer can directly publish
there new scripts to server and any client can run this. Thanks
Best regards,
Thomas Joscht
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