private void RegisterService(string serviceId, string serviceResponseReceiverId)
{
using (EneterTrace.Entering())
{
bool anIsNewServiceRegistered = false;
TServiceContext aServiceContext = null;
using (ThreadLock.Lock(myConnectionLock))
{
aServiceContext = myConnectedServices.FirstOrDefault(x => x.ServiceId == serviceId || x.ServiceResponseReceiverId == serviceResponseReceiverId);
if (aServiceContext == null)
{
aServiceContext = new TServiceContext(serviceId, serviceResponseReceiverId);
myConnectedServices.Add(aServiceContext);
anIsNewServiceRegistered = true;
}
}
if (anIsNewServiceRegistered)
{
if (ServiceRegistered != null)
{
try
{
MessageBusServiceEventArgs anEvent = new MessageBusServiceEventArgs(serviceId, serviceResponseReceiverId);
ServiceRegistered(this, anEvent);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + ErrorHandler.DetectedException, err);
}
}
}
else
{
// If this connection has registered the same service then do nothing.
if (aServiceContext.ServiceId == serviceId &&
aServiceContext.ServiceResponseReceiverId == serviceResponseReceiverId)
{
}
else if (aServiceContext.ServiceId != serviceId &&
aServiceContext.ServiceResponseReceiverId == serviceResponseReceiverId)
{
EneterTrace.Warning("The connection has already registered a different service '" + aServiceContext.ServiceId + "'. Connection will be disconnected.");
UnregisterService(serviceResponseReceiverId);
}
else if (aServiceContext.ServiceId == serviceId &&
aServiceContext.ServiceResponseReceiverId != serviceResponseReceiverId)
{
EneterTrace.Warning("Service '" + serviceId + "' is already registered. Connection will be disconnected.");
UnregisterService(serviceResponseReceiverId);
}
}
}
}
private void UnregisterService(string serviceResponseReceiverId)
{
using (EneterTrace.Entering())
{
List <string> aClientsToDisconnect = new List <string>();
string aServiceId = null;
using (ThreadLock.Lock(myConnectionLock))
{
// Remove the service.
myConnectedServices.RemoveWhere(x =>
{
if (x.ServiceResponseReceiverId == serviceResponseReceiverId)
{
aServiceId = x.ServiceId;
return(true);
}
return(false);
});
// Remove all clients connected to the service.
myConnectedClients.RemoveWhere(x =>
{
if (x.ServiceResponseReceiverId == serviceResponseReceiverId)
{
aClientsToDisconnect.Add(x.ClientResponseReceiverId);
// Indicate the item shall be removed.
return(true);
}
return(false);
});
}
// Close connections with clients.
if (myClientConnector.IsDuplexInputChannelAttached)
{
foreach (string aClientResponseReceiverId in aClientsToDisconnect)
{
IDuplexInputChannel anInputChannel = myClientConnector.AttachedDuplexInputChannel;
if (anInputChannel != null)
{
anInputChannel.DisconnectResponseReceiver(aClientResponseReceiverId);
}
}
}
IDuplexInputChannel anInputChannel2 = myServiceConnector.AttachedDuplexInputChannel;
if (anInputChannel2 != null)
{
anInputChannel2.DisconnectResponseReceiver(serviceResponseReceiverId);
}
if (ServiceUnregistered != null && !string.IsNullOrEmpty(aServiceId))
{
EneterTrace.Debug("SERVICE '" + aServiceId + "' UNREGISTERED");
try
{
MessageBusServiceEventArgs anEvent = new MessageBusServiceEventArgs(aServiceId, serviceResponseReceiverId);
ServiceUnregistered(this, anEvent);
}
catch (Exception err)
{
EneterTrace.Error(TracedObject + ErrorHandler.DetectedException, err);
}
}
}
}
