public bool Ping(Guid managementAgentID)
{
IEventCallBack subscriber = OperationContext.Current.GetCallbackChannel <IEventCallBack>();
if (EventService.subscribers.ContainsKey(managementAgentID))
{
if (EventService.subscribers[managementAgentID].Contains(subscriber))
{
// Still registered
logger.Trace($"Client ping succeeded for {managementAgentID} at {EventService.RemoteHost}");
return(true);
}
}
logger.Warn($"Client ping failed for {managementAgentID} at {EventService.RemoteHost}. Client is no longer registered.");
// Not registered
return(false);
}
public void Register(Guid managementAgentID)
{
try
{
string name = Global.GetManagementAgentName(managementAgentID);
if (name == null)
{
throw new NoSuchManagementAgentException();
}
IEventCallBack subscriber = OperationContext.Current.GetCallbackChannel <IEventCallBack>();
if (!EventService.subscribers.ContainsKey(managementAgentID))
{
EventService.subscribers.TryAdd(managementAgentID, new SynchronizedCollection <IEventCallBack>());
}
if (!EventService.subscribers[managementAgentID].Contains(subscriber))
{
EventService.subscribers[managementAgentID].Add(subscriber);
}
// ReSharper disable once SuspiciousTypeConversion.Global
if (subscriber is ICommunicationObject commObj)
{
commObj.Faulted += EventService.CommObj_Faulted;
commObj.Closed += EventService.CommObj_Closed;
}
logger.Trace($"Registered callback channel for {name}/{managementAgentID} on client {EventService.RemoteHost}");
}
catch (Exception ex)
{
logger.Error(ex, "An error occurred with the client registration");
throw;
}
}