/// <summary>
/// Update the browser alert list data using SignalR
/// </summary>
private static async Task UpdateSessionsAlertData(CancellationToken ct)
{
while (true)
{
_updateClientAlertData.WaitOne(Timeout.Infinite);
if (ct.IsCancellationRequested)
{
break;
}
AlertDataUpdate[] sessionAlertDataUpdate = new AlertDataUpdate[Startup.SessionList.Count];
int sessionUpdateIndex = 0;
try
{
foreach (KeyValuePair <string, DashboardModel> session in Startup.SessionList)
{
AlertDataUpdate sessionAlertData = new AlertDataUpdate();
string topNodeKey = session.Value.TopNode.Key;
// Update the alert data.
sessionAlertData.SessionId = session.Key;
sessionAlertData.TopNode = topNodeKey;
sessionAlertData.Alerts = Startup.Topology.GetAlerts(topNodeKey);
// Update the data sent to the clients.
sessionAlertDataUpdate[sessionUpdateIndex] = sessionAlertData;
sessionUpdateIndex++;
}
if (Startup.SessionList.Count > 0 && sessionUpdateIndex > 0)
{
string _sessionAlertDataUpdateJson = JsonConvert.SerializeObject(sessionAlertDataUpdate);
IHubContext hubContext = GlobalHost.ConnectionManager.GetHubContext <TelemetryHub>();
hubContext.Clients.All.updateSessionAlertData(_sessionAlertDataUpdateJson);
}
}
catch (Exception e)
{
Trace.TraceInformation($"Exception in UpdateSessionsAlertData ({e.Message})");
}
}
}
public string AlertActionExecute(long alertId, int alertActionId)
{
var jsonResponse = new List <object>();
try
{
// Lookup the alert.
ContosoAlert alert = Startup.Topology.FindAlert(alertId);
if (alert != null)
{
// Validate the action id.
ContosoTopologyNode topologyNode = Startup.Topology[alert.Key] as ContosoTopologyNode;
List <ContosoAlertActionDefinition> alertActions = topologyNode.GetAlertActions(alert.Cause, alert.SubKey);
if (alertActions == null || alertActionId >= alertActions.Count)
{
Trace.TraceError($"alertActionId '{alertActionId}' is out of scope or unknown.");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
}
else
{
bool updateSessionAlerts = false;
// Process the requested action.
switch (alertActions[alertActionId].Type)
{
case ContosoAlertActionType.AcknowledgeAlert:
// Update alert status.
if (topologyNode.AcknowledgeAlert(alertId) == false)
{
Trace.TraceError(
$"alertId '{alertId}' in node '{topologyNode.Key}' could not be acknowledged.");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
}
updateSessionAlerts = true;
jsonResponse.Add(new { actionType = ContosoAlertActionType.AcknowledgeAlert });
break;
case ContosoAlertActionType.CloseAlert:
// Update alert status.
if (topologyNode.CloseAlert(alertId) == false)
{
Trace.TraceError(
$"alertId '{alertId}' in node '{topologyNode.Key}' could not be acknowledged.");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
}
updateSessionAlerts = true;
jsonResponse.Add(new { actionType = ContosoAlertActionType.CloseAlert });
break;
case ContosoAlertActionType.CallOpcMethod:
// Validate that this is a OPC UA server.
if (topologyNode.GetType() != typeof(Station))
{
Trace.TraceError($"Toplogy node '{topologyNode.Key}' is not an OPC UA server. No method call possible.");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
break;
}
// Parameter format: "<parent nodeId>, <method nodeId>, <opcua server uri>"
string[] parameter = alertActions[alertActionId].Parameter.Split(',');
jsonResponse.Add(new { errorMessage = CallOpcMethod(parameter[2].Trim(), parameter[0].Trim(), parameter[1].Trim()) });
break;
case ContosoAlertActionType.OpenWebPage:
jsonResponse.Add(new { actionType = ContosoAlertActionType.OpenWebPage });
string urlPath = alertActions[alertActionId].Parameter;
jsonResponse.Add(new { url = urlPath });
break;
case ContosoAlertActionType.None:
default:
Trace.TraceWarning($"alert type '{alertActions[alertActionId].Type}' of alert '{alertId}' resulted in no action.");
break;
}
// Update session alerts if requested.
if (updateSessionAlerts)
{
// Prepare the updated alert list.
AlertDataUpdate[] sessionAlertDataUpdate = new AlertDataUpdate[Startup.SessionList.Count];
int sessionUpdateIndex = 0;
foreach (KeyValuePair <string, DashboardModel> session in Startup.SessionList)
{
AlertDataUpdate sessionAlertData = new AlertDataUpdate();
string topNodeKey = session.Value.TopNode.Key;
// Update the alert data.
sessionAlertData.SessionId = Session.SessionID;
sessionAlertData.TopNode = topNodeKey;
sessionAlertData.Alerts = Startup.Topology.GetAlerts(topNodeKey);
// Update the data sent to the clients.
sessionAlertDataUpdate[sessionUpdateIndex] = sessionAlertData;
sessionUpdateIndex++;
}
// Update all clients
string sessionAlertDataUpdateJson = JsonConvert.SerializeObject(sessionAlertDataUpdate);
if (Startup.SessionList.Count > 0 && sessionUpdateIndex > 0)
{
IHubContext hubContext = GlobalHost.ConnectionManager.GetHubContext <TelemetryHub>();
hubContext.Clients.All.updateSessionAlertData(sessionAlertDataUpdateJson);
}
}
}
}
else
{
Trace.TraceError($"alertId '{alertId}' is out of scope or unknown.");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
}
}
catch (Exception ex)
{
Trace.TraceError($"exception '{ex.Message}' while processing alertId '{alertId}' and alertActionId '{alertActionId}");
Response.StatusCode = 1;
jsonResponse.Add(new { errorMessage = Strings.AlertIdUnknown });
}
return(JsonConvert.SerializeObject(jsonResponse));
}
/// <summary>
/// Update the browser content using SignalR
/// </summary>
private void BrowserUpdate()
{
ChildrenDataUpdate[] sessionChildrenDataUpdate = new ChildrenDataUpdate[Startup.SessionList.Count];
OeeKpiDataUpdate[] sessionOeeKpiDataUpdate = new OeeKpiDataUpdate[Startup.SessionList.Count];
AlertDataUpdate[] sessionAlertDataUpdate = new AlertDataUpdate[Startup.SessionList.Count];
int sessionUpdateIndex = 0;
foreach (KeyValuePair <string, DashboardModel> session in Startup.SessionList)
{
ChildrenDataUpdate sessionChildrenData = new ChildrenDataUpdate();
OeeKpiDataUpdate sessionOeeKpiData = new OeeKpiDataUpdate();
AlertDataUpdate sessionAlertData = new AlertDataUpdate();
string topNodeKey = session.Value.TopNode.Key;
// Update the OEE/KPI relevant data.
sessionOeeKpiData.SessionId = session.Key;
sessionOeeKpiData.TopNode = topNodeKey;
// Add the performance data relevant for the session.
ContosoTopologyNode topNode = (ContosoTopologyNode)Startup.Topology[topNodeKey];
ContosoAggregatedOeeKpiTimeSpan oeeKpiLast = topNode.Last;
sessionOeeKpiData.Kpi1Last = oeeKpiLast.Kpi1;
sessionOeeKpiData.Kpi1PerformanceSetting = topNode.Kpi1PerformanceSetting;
sessionOeeKpiData.Kpi2Last = oeeKpiLast.Kpi2;
sessionOeeKpiData.Kpi2PerformanceSetting = topNode.Kpi2PerformanceSetting;
sessionOeeKpiData.OeeAvailabilityLast = oeeKpiLast.OeeAvailability;
sessionOeeKpiData.OeeAvailabilityPerformanceSetting = topNode.OeeAvailabilityPerformanceSetting;
sessionOeeKpiData.OeePerformanceLast = oeeKpiLast.OeePerformance;
sessionOeeKpiData.OeePerformancePerformanceSetting = topNode.OeePerformancePerformanceSetting;
sessionOeeKpiData.OeeQualityLast = oeeKpiLast.OeeQuality;
sessionOeeKpiData.OeeQualityPerformanceSetting = topNode.OeeQualityPerformanceSetting;
sessionOeeKpiData.OeeOverallLast = oeeKpiLast.OeeOverall;
sessionOeeKpiData.OeeOverallPerformanceSetting = topNode.OeeOverallPerformanceSetting;
// Update the alert data.
sessionAlertData.SessionId = session.Key;
sessionAlertData.TopNode = topNodeKey;
sessionAlertData.Alerts = Startup.Topology.GetAlerts(topNodeKey);
// Update the children data.
sessionChildrenData.SessionId = session.Key;
sessionChildrenData.TopNode = topNodeKey;
sessionChildrenData.Children = Startup.Topology.GetChildrenInfo(topNodeKey);
// Update the data sent to the clients.
sessionChildrenDataUpdate[sessionUpdateIndex] = sessionChildrenData;
sessionOeeKpiDataUpdate[sessionUpdateIndex] = sessionOeeKpiData;
sessionAlertDataUpdate[sessionUpdateIndex] = sessionAlertData;
sessionUpdateIndex++;
}
if (Startup.SessionList.Count > 0 && sessionUpdateIndex > 0)
{
string _sessionChildrenDataUpdateJson = JsonConvert.SerializeObject(sessionChildrenDataUpdate);
string _sessionOeeKpiDataUpdateJson = JsonConvert.SerializeObject(sessionOeeKpiDataUpdate);
string _sessionAlertDataUpdateJson = JsonConvert.SerializeObject(sessionAlertDataUpdate);
IHubContext hubContext = GlobalHost.ConnectionManager.GetHubContext <TelemetryHub>();
hubContext.Clients.All.updateSessionChildrenData(_sessionChildrenDataUpdateJson);
hubContext.Clients.All.updateSessionOeeKpiData(_sessionOeeKpiDataUpdateJson);
hubContext.Clients.All.updateSessionAlertData(_sessionAlertDataUpdateJson);
}
}
