Castle Windsor WCF Client service registration based on convention - wcf

Question

I have a client-server application, which intercommunicate via WCF. They also both use Castle Windsor for resolving dependencies.
My goal, is to completely avoid having to explicitly register server, or client WCF endpoints.
I have achieved the server-side by 'convention' using the following code
// registers all services which implement exactly 1 [ServiceContract]
_windsorContainer.Register(
AllTypes.FromThisAssembly().IncludeNonPublicTypes().Where(
t => 1 == (from i in t.GetInterfaces() where i.IsDefined(typeof(ServiceContractAttribute), true) select i).Count())
.Configure(c => c.LifeStyle.PerWcfSession()
.ActAs(new DefaultServiceModel().AddEndpoints(
WcfEndpoint.BoundTo(new NetTcpBinding())
.At("net.tcp://" + LocalAddress.ToString() + ":7601/" + c.ServiceType.Name),
WcfEndpoint.FromEndpoint(new UdpDiscoveryEndpoint())
))
).WithService.Select(
(Type type, Type[] baseTypes) => from i in type.GetInterfaces() where i.IsDefined(typeof(ServiceContractAttribute), true) select i
)
);
This code will find all classes in the current assembly, and any which implement a service-contract interface (identified by the ServiceContract attribute) will be registered (with UDP discovery) at the address "net.tcp://localhost:7601/[service-contract-interface-name]".
Now, I just want the client-side of the equation.
Typically, to use castle to generate client-proxies for WCF contracts, the following code will work:
var model = new DefaultClientModel
{
Endpoint = WcfEndpoint.ForContract<IServiceContract>().BoundTo(new NetTcpBinding()).Discover(typeof(IServiceContract))
};
container.Register(
Component.For<ChannelReconnectPolicy>(),
Castle.Facilities.WcfIntegration.WcfClient.ForChannels(model),
);
What I want, is for Castle to do this kind of registration for all 'service-contract' interfaces in a given assembly - however the AllTypes helper seems to return only classes, not interfaces (which I guess makes it an 'AllClasses', not 'AllTypes'!)... Can Castle do this, and what is the syntax? Krzysztof? (help!)
Thanks!

Answer 1

Apologies for such a late reply - a developer's life is never a quiet one!
I dug out the code, and its not as 'succinct' as I would have liked, perhaps someone can look at integrating something like this in to Castle... but here goes...
// these are all the namespaces that will be scanned for WCF service contracts
string[] remoteServiceNamespaces
= new string[] { "MyContracts.Services", "Interlinq" };
// everything from here on is in the Castle DLLs (all the types)
List<IRegistration> clientContractRegistrations = new List<IRegistration>();
foreach (
var interfaceContract in
(from s in remoteServiceNamespaces
select (from i in Assembly.LoadWithPartialName(s).GetTypes()
where i.IsInterface
&&
i.IsDefined(typeof(ServiceContractAttribute), false)
select i)).SelectMany( x => x )
)
{
ServiceContractAttribute attr
= Attribute.GetCustomAttribute(
interfaceContract,
typeof(ServiceContractAttribute))
as ServiceContractAttribute;
if (null != attr)
{
WcfClientModelBase model = null;
// here we handle the case of the service being duplex...
if (null != attr.CallbackContract)
{
model = new DuplexClientModel
{
// All the automatically registered services will use NetTcp,
// and will discover their addresses (you could use binding
// inference aswell if you liked)
// here I have a method called 'CreateNetTcpBinding' which
// creates my custom binding that ALL my services use.
Endpoint =
WcfEndpoint.ForContract(interfaceContract)
.BoundTo(CreateNetTcpBinding())
.Discover(interfaceContract)
.PreferEndpoint(list => list[0])
}.Callback(_windsor.Resolve(attr.CallbackContract));
}
else
{
model = new DefaultClientModel
{
Endpoint = WcfEndpoint.ForContract(interfaceContract)
.BoundTo(new NetTcpBinding())
.Discover(interfaceContract)
.PreferEndpoint(list => list[0])
};
}
clientContractRegistrations.Add(WcfClient.ForChannels(model));
}
}
// now that we've built our registration list, let's actually register
// them all with Windsor
_windsor.Register(
clientContractRegistrations.ToArray()
);