/// <summary>
/// Search cached query for all active nodeId of all servers in topology.
/// Add new nodes to station topology.
/// </summary>
/// <param name="fullQuery">A cached query</param>
/// <param name="topologyStations">List of stations in topology</param>
private async Task AddNewNodes(RDXCachedAggregatedQuery fullQuery, List <string> topologyStations)
{
List <string> opcUaServers = fullQuery.GetActiveServerList();
foreach (string opcUaServer in opcUaServers)
{
ContosoOpcUaServer topologyNode = _topology[opcUaServer.ToLower()] as ContosoOpcUaServer;
if (topologyNode != null)
{
List <string> topologyNodeIdList = topologyNode.NodeList.Select(x => x.NodeId).ToList();
List <string> activeNodeIdList = fullQuery.GetActiveNodeIdList(opcUaServer);
var newNodeIdList = activeNodeIdList.Except(topologyNodeIdList, StringComparer.InvariantCultureIgnoreCase);
if (newNodeIdList.Count() > 0)
{
RDXOpcUaQueries opcUaQueries = new RDXOpcUaQueries(CancellationToken.None);
foreach (string newNodeId in newNodeIdList)
{
RDXTrace.TraceInformation("RDX Worker adding node {0} to server {1}", newNodeId, opcUaServer);
string symbolicName = await opcUaQueries.QueryDisplayName(DateTime.UtcNow, opcUaServer, newNodeId);
topologyNode.AddOpcServerNode(
newNodeId,
symbolicName,
null,
ContosoOpcNodeOpCode.Avg,
null,
true,
null,
null,
null,
null,
null,
null,
null
);
}
}
}
}
}