Opc.Ua.Server.DiagnosticsNodeManager.OnGetMonitoredItems C# (CSharp) Method

        public ServiceResult OnGetMonitoredItems(
            ISystemContext context,
            MethodState method,
            IList<object> inputArguments,
            IList<object> outputArguments)
        {
            if (inputArguments == null || inputArguments.Count != 1)
            {
                return StatusCodes.BadInvalidArgument;
            }

            uint? subscriptionId = inputArguments[0] as uint?;

            if (subscriptionId == null)
            {
                return StatusCodes.BadInvalidArgument;
            }

            uint[] serverHandles = null;
            uint[] clientHandles = null;

            foreach (Subscription subscription in Server.SubscriptionManager.GetSubscriptions())
            {
                if (subscription.Id == subscriptionId)
                {
                    subscription.GetMonitoredItems(out serverHandles, out clientHandles);

                    outputArguments[0] = serverHandles;
                    outputArguments[1] = clientHandles;

                    return ServiceResult.Good;
                }
            }

            return StatusCodes.BadSubscriptionIdInvalid;
        }