/// <summary>
/// Creates List, adds/removes items.
/// No throw.
/// </summary>
/// <param name="clientConnectionManager"></param>
public void Subscribe(ClientConnectionManager clientConnectionManager)
{
try
{
if (!DataGrpcItemsMustBeAddedOrRemoved)
{
return;
}
bool firstTimeDataJournalConnection = (DataGrpcList is null);
if (firstTimeDataJournalConnection)
{
try
{
if (clientConnectionManager.ConnectionExists)
{
DataGrpcList = clientConnectionManager.NewElementValuesJournalList(null);
}
}
catch (Exception)
{
}
}
bool connectionError = SubscribeInitial();
if (!connectionError)
{
DataGrpcItemsMustBeAddedOrRemoved = false;
}
}
finally
{
SubscribeFinal();
}
}
/// <summary>
/// Creates List, adds/removes items.
/// No throw.
/// </summary>
/// <param name="clientConnectionManager"></param>
/// <param name="сallbackDispatcher"></param>
/// <param name="elementValuesCallbackEventHandler"></param>
/// <param name="callbackIsEnabled"></param>
/// <param name="ct"></param>
public void Subscribe(ClientConnectionManager clientConnectionManager, IDispatcher?сallbackDispatcher,
ElementValuesCallbackEventHandler elementValuesCallbackEventHandler, bool callbackIsEnabled, CancellationToken ct)
{
try
{
if (ct.IsCancellationRequested)
{
return;
}
if (!DataGrpcItemsMustBeAddedOrRemoved)
{
return;
}
bool firstTimeDataConnection = (DataGrpcList is null);
if (firstTimeDataConnection)
{
try
{
if (clientConnectionManager.ConnectionExists)
{
DataGrpcList = clientConnectionManager.NewElementValueList(null);
}
}
catch (Exception)
{
}
}
bool connectionError = SubscribeInitial();
try
{
if (!connectionError && DataGrpcList is not null && !DataGrpcList.Disposed)
{
if (firstTimeDataConnection)
{
DataGrpcList.ElementValuesCallback +=
(ClientElementValueList dataList, ClientElementValueListItem[] items,
ValueStatusTimestamp[] values) =>
{
var changedClientObjs = new List <object>(items.Length);
var changedValues = new List <ValueStatusTimestamp>(items.Length);
int i = 0;
foreach (ClientElementValueListItem dataGrpcElementValueListItem in items)
{
var o = dataGrpcElementValueListItem.Obj as DataGrpcListItemWrapper;
if (o is null)
{
throw new InvalidOperationException();
}
foreach (var modelItem in o.ClientObjectInfosCollection)
{
modelItem.ForceNotifyClientObj = false;
if (modelItem.ClientObj is not null)
{
changedClientObjs.Add(modelItem.ClientObj);
changedValues.Add(values[i]);
}
}
i++;
}
if (ct.IsCancellationRequested)
{
return;
}
Logger.LogDebug("DataGrpcList.ElementValuesCallback");
if (сallbackDispatcher is not null)
{
try
{
сallbackDispatcher.BeginInvoke(ct =>
{
Logger.LogDebug("DataGrpcList.ElementValuesCallback dispatched");
elementValuesCallbackEventHandler(changedClientObjs.ToArray(), changedValues.ToArray());
});
}
catch (Exception)
{
}
}
};
if (callbackIsEnabled)
{
DataGrpcList.EnableListCallback(true);
}
}
}
}
catch (Exception ex)
{
Logger.LogWarning(ex, "ClientElementValueListItemsManager.Subscribe exception");
connectionError = true;
}
{
var utcNow = DateTime.UtcNow;
var changedClientObjs = new List <object>();
var changedValues = new List <ValueStatusTimestamp>();
foreach (DataGrpcListItemWrapper dataGrpcListItemWrapper in DataGrpcListItemWrappersDictionary.Values)
{
foreach (var modelItem in dataGrpcListItemWrapper.ClientObjectInfosCollection)
{
if (modelItem.ForceNotifyClientObj)
{
modelItem.ForceNotifyClientObj = false;
if (modelItem.ClientObj is not null)
{
if (dataGrpcListItemWrapper.ItemDoesNotExist)
{
changedClientObjs.Add(modelItem.ClientObj);
changedValues.Add(new ValueStatusTimestamp {
ValueStatusCode = ValueStatusCode.ItemDoesNotExist
});
}
else if (dataGrpcListItemWrapper.DataGrpcListItem is not null)
{
changedClientObjs.Add(modelItem.ClientObj);
changedValues.Add(dataGrpcListItemWrapper.DataGrpcListItem.ValueStatusTimestamp);
}
else
{
changedClientObjs.Add(modelItem.ClientObj);
changedValues.Add(new ValueStatusTimestamp(new Any(), ValueStatusCode.Unknown, utcNow));
}
}
}
}
}
if (changedClientObjs.Count > 0)
{
if (ct.IsCancellationRequested)
{
return;
}
if (сallbackDispatcher is not null)
{
try
{
сallbackDispatcher.BeginInvoke(ct =>
elementValuesCallbackEventHandler(changedClientObjs.ToArray(), changedValues.ToArray()));
}
catch (Exception)
{
}
}
}
}
if (!connectionError)
{
DataGrpcItemsMustBeAddedOrRemoved = false;
}
}
finally
{
SubscribeFinal();
}
}
/// <summary>
/// No throw.
/// </summary>
/// <param name="clientConnectionManager"></param>
/// <param name="сallbackDispatcher"></param>
/// <param name="callbackIsEnabled"></param>
/// <param name="ct"></param>
public void Subscribe(ClientConnectionManager clientConnectionManager, IDispatcher?сallbackDispatcher, bool callbackIsEnabled, CancellationToken ct)
{
if (ct.IsCancellationRequested)
{
return;
}
if (!clientConnectionManager.ConnectionExists)
{
return;
}
if (!_dataGrpcEventItemsMustBeAdded)
{
return;
}
bool allOk = true;
foreach (
var kvp in _eventMessagesCallbackEventHandlers)
{
if (ct.IsCancellationRequested)
{
return;
}
if (kvp.Value.P is not null)
{
continue;
}
ClientEventList dataGrpcEventList;
try
{
dataGrpcEventList = clientConnectionManager.NewEventList(null);
}
catch (Exception)
{
return;
}
try
{
if (dataGrpcEventList.Disposed)
{
return;
}
try
{
Action <Utils.DataAccess.EventMessage[]> eventMessagesCallbackEventHandler = kvp.Key;
dataGrpcEventList.EventMessagesCallbackEvent +=
(ClientEventList eventList, Server.EventMessage[] newEventMessages) =>
{
if (ct.IsCancellationRequested)
{
return;
}
if (сallbackDispatcher is not null)
{
try
{
сallbackDispatcher.BeginInvoke(ct => eventMessagesCallbackEventHandler(
newEventMessages.Select(em => em.ToEventMessage()).ToArray()));
}
catch (Exception)
{
}
}
};
if (callbackIsEnabled)
{
dataGrpcEventList.EnableListCallback(true);
}
}
catch (Exception)
{
allOk = false;
}
}
catch (Exception ex)
{
Logger.LogWarning(ex, "EventMessagesManager.Subscribe exception.");
}
kvp.Value.P = dataGrpcEventList;
if (allOk)
{
_dataGrpcEventItemsMustBeAdded = false;
}
}
}