/// <summary>
/// Intercepts delegate parameters.
/// </summary>
/// <param name="details">Invocation details</param>
private void Invoke_InterceptDelegateParams(InvocationDetails details)
{
var serverMethodParamDefs = details.MethodInfo.GetParameters();
foreach (int index in details.DelegateParamIndexes.Keys)
{
var delegateParamInterceptor = details.DelegateParamIndexes[index];
var serverMethodParamDef = serverMethodParamDefs[index];
var dynamicWire = DynamicWireFactory.CreateDynamicWire(details.Type, serverMethodParamDef.ParameterType);
dynamicWire.Interceptor = delegateParamInterceptor;
details.Args[index] = dynamicWire.InDelegate;
}
}
/// <summary>
/// Removes wires between server and client components (as defined in correlation set).
/// </summary>
/// <param name="type">Type of the server component</param>
/// <param name="eventStub"><see cref="EventStub"/> with cached subscriptions.</param>
/// <param name="delegateCorrelationSet">Correlation set with wiring information</param>
/// <param name="wiringList">List with known wirings</param>
private void RemoveClientServerWires(Type type, EventStub eventStub, IEnumerable <DelegateCorrelationInfo> delegateCorrelationSet, Dictionary <Guid, Delegate> wiringList)
{
if (delegateCorrelationSet == null)
{
return;
}
var currentSession = ServerSession.CurrentSession;
foreach (var correlationInfo in delegateCorrelationSet)
{
if (wiringList.ContainsKey(correlationInfo.CorrelationID))
{
lock (wiringList)
{
if (!wiringList.ContainsKey(correlationInfo.CorrelationID))
{
continue;
}
var dynamicWireDelegate = wiringList[correlationInfo.CorrelationID];
eventStub.RemoveHandler(correlationInfo.DelegateMemberName, dynamicWireDelegate);
wiringList.Remove(correlationInfo.CorrelationID);
var dynamicWire = DynamicWireFactory.GetDynamicWire(dynamicWireDelegate);
if (dynamicWire != null)
{
dynamicWire.Dispose();
}
}
_host.OnSubscriptionRemoved(new SubscriptionEventArgs
{
ComponentType = type,
DelegateMemberName = correlationInfo.DelegateMemberName,
CorrelationID = correlationInfo.CorrelationID,
});
}
}
if (currentSession != null)
{
currentSession.UntrackRemoteSubscriptions(delegateCorrelationSet);
}
}
/// <summary>
/// Creates wires between client component and server component.
/// </summary>
/// <param name="type">Implementation type of the server component.</param>
/// <param name="eventStub"><see cref="EventStub"/> with cached subscriptions.</param>
/// <param name="delegateCorrelationSet">Correlation set (say how to wire)</param>
/// <param name="wiringList">Collection of built wires</param>
private void CreateClientServerWires(Type type, EventStub eventStub, List <DelegateCorrelationInfo> delegateCorrelationSet, Dictionary <Guid, Delegate> wiringList)
{
if (delegateCorrelationSet == null)
{
return;
}
foreach (var correlationInfo in delegateCorrelationSet)
{
if (wiringList.ContainsKey(correlationInfo.CorrelationID))
{
continue;
}
if (ServerSession.CurrentSession == null)
{
throw new InvalidSessionException(string.Format(LanguageResource.InvalidSessionException_SessionIDInvalid, "(null)"));
}
var dynamicWire = DynamicWireFactory.CreateDynamicWire(type, correlationInfo.DelegateMemberName, correlationInfo.IsEvent);
dynamicWire.Interceptor = correlationInfo.ClientDelegateInterceptor;
if (correlationInfo.IsEvent)
{
var dynamicEventWire = (DynamicEventWireBase)dynamicWire;
dynamicEventWire.EventFilter = correlationInfo.EventFilter;
// add session validation handler and unsubscription callback
var sessionId = ServerSession.CurrentSession.SessionID;
var sessionManager = _host.SessionManager;
dynamicEventWire.ValidateSession = () => sessionManager.ExistSession(sessionId);
dynamicEventWire.CancelSubscription = () => eventStub.RemoveHandler(correlationInfo.DelegateMemberName, dynamicEventWire.InDelegate);
eventStub.AddHandler(correlationInfo.DelegateMemberName, dynamicEventWire.InDelegate);
wiringList.Add(correlationInfo.CorrelationID, dynamicEventWire.InDelegate);
}
else
{
eventStub.AddHandler(correlationInfo.DelegateMemberName, dynamicWire.InDelegate);
wiringList.Add(correlationInfo.CorrelationID, dynamicWire.InDelegate);
}
}
}
/// <summary>
/// Creates wires between client component and server component.
/// </summary>
/// <param name="type">Implementation type of the server component.</param>
/// <param name="eventStub"><see cref="EventStub"/> with cached subscriptions.</param>
/// <param name="delegateCorrelationSet">Correlation set (say how to wire)</param>
/// <param name="wiringList">Collection of built wires</param>
private void CreateClientServerWires(Type type, EventStub eventStub, IEnumerable <DelegateCorrelationInfo> delegateCorrelationSet, Dictionary <Guid, Delegate> wiringList)
{
if (delegateCorrelationSet == null)
{
return;
}
var currentSession = ServerSession.CurrentSession;
if (currentSession == null)
{
throw new InvalidSessionException(string.Format(LanguageResource.InvalidSessionException_SessionIDInvalid, "(null)"));
}
foreach (var correlationInfo in delegateCorrelationSet)
{
if (wiringList.ContainsKey(correlationInfo.CorrelationID))
{
continue;
}
var dynamicWire = DynamicWireFactory.CreateDynamicWire(type, correlationInfo.DelegateMemberName, correlationInfo.IsEvent);
dynamicWire.Interceptor = correlationInfo.ClientDelegateInterceptor;
lock (wiringList)
{
if (wiringList.ContainsKey(correlationInfo.CorrelationID))
{
continue;
}
if (correlationInfo.IsEvent)
{
var dynamicEventWire = (DynamicEventWireBase)dynamicWire;
dynamicEventWire.EventFilter = correlationInfo.EventFilter;
// add session validation handler and unsubscription callback
var sessionId = currentSession.SessionID;
var sessionManager = _host.SessionManager;
dynamicEventWire.ValidateSession = () => sessionManager.ExistSession(sessionId);
dynamicEventWire.CancelSubscription = ex =>
{
eventStub.RemoveHandler(correlationInfo.DelegateMemberName, dynamicEventWire.InDelegate);
wiringList.Remove(correlationInfo.CorrelationID);
currentSession.DecrementRemoteSubscriptionCounter();
_host.OnSubscriptionCanceled(new SubscriptionEventArgs
{
ComponentType = type,
DelegateMemberName = correlationInfo.DelegateMemberName,
CorrelationID = correlationInfo.CorrelationID,
Exception = ex
});
};
eventStub.AddHandler(correlationInfo.DelegateMemberName, dynamicEventWire.InDelegate);
wiringList.Add(correlationInfo.CorrelationID, dynamicEventWire.InDelegate);
}
else
{
eventStub.AddHandler(correlationInfo.DelegateMemberName, dynamicWire.InDelegate);
wiringList.Add(correlationInfo.CorrelationID, dynamicWire.InDelegate);
}
}
currentSession.IncrementRemoteSubscriptionCounter();
_host.OnSubscriptionAdded(new SubscriptionEventArgs
{
ComponentType = type,
DelegateMemberName = correlationInfo.DelegateMemberName,
CorrelationID = correlationInfo.CorrelationID,
});
}
}
