/// <summary>
/// Ctor for the Contoso topology.
/// </summary>
/// <param name="topologyDescriptionFilename"></param>
public ContosoTopology(string topologyDescriptionFilename)
{
TopologyDescription topologyDescription;
// Read the JSON equipment topology description.
using (StreamReader topologyDescriptionStream = File.OpenText(topologyDescriptionFilename))
{
JsonSerializer serializer = new JsonSerializer();
topologyDescription = (TopologyDescription)serializer.Deserialize(topologyDescriptionStream, typeof(TopologyDescription));
}
// Build the topology tree, start with the global level.
ContosoTopologyNode rootNode = new ContosoTopologyNode("TopologyRoot", "Global", "Contoso", topologyDescription);
TopologyRoot = rootNode;
// There must be at least one factory.
if (topologyDescription.Factories.Count == 0)
{
IndexOutOfRangeException indexOutOfRange = new IndexOutOfRangeException("There must be at least one factory defined.");
throw indexOutOfRange;
}
// Iterate through the whole description level by level.
foreach (var factoryDescription in topologyDescription.Factories)
{
// Add it to the tree.
Factory factory = new Factory(factoryDescription);
AddChild(TopologyRoot.Key, factory);
// There must be at least one production line.
if (factoryDescription.ProductionLines.Count == 0)
{
string message = String.Format("There must be at least one production line defined for factory '{0}'.", factory.Name);
IndexOutOfRangeException indexOutOfRange = new IndexOutOfRangeException(message);
throw indexOutOfRange;
}
// Handle all production lines.
foreach (var productionLineDescription in factoryDescription.ProductionLines)
{
// Add it to the tree.
ProductionLine productionLine = new ProductionLine(productionLineDescription);
productionLine.Location = factory.Location;
AddChild(factory.Key, productionLine);
// There must be at least one station.
if (productionLineDescription.Stations.Count == 0)
{
string message = String.Format("There must be at least one station defined for production line '{0}' in factory '{1}'.", productionLine.Name, factory.Name);
IndexOutOfRangeException indexOutOfRange = new IndexOutOfRangeException(message);
throw indexOutOfRange;
}
// Handle all stations (a station is running an OPC UA server).
foreach (var stationDescription in productionLineDescription.Stations)
{
// Add it to the tree.
Station station = new Station(stationDescription);
station.Location = productionLine.Location;
AddChild(productionLine.Key, station);
}
}
}
// configuration only contains settings for stations, calculate the remaining topology
UpdateAllKPIAndOEEPerfItems();
}
/// <summary>
/// Returns information for all children of the given topology node.
/// This information will be shown in the UX.
/// </summary>
/// <param name="parentKey"></param>
public List <ContosoChildInfo> GetChildrenInfo(string parentKey)
{
List <ContosoChildInfo> childrenInfo = new List <ContosoChildInfo>();
// Update type of children for the given key.
ContosoTopologyNode parent = (ContosoTopologyNode)TopologyTable[parentKey];
string childrenType;
Type parentType = parent.GetType();
childrenType = typeof(Factory).ToString();
if (parentType == typeof(Factory))
{
childrenType = typeof(ProductionLine).ToString();
}
else if (parentType == typeof(ProductionLine))
{
childrenType = typeof(Station).ToString();
}
else if (parentType == typeof(Station))
{
childrenType = typeof(ContosoOpcUaNode).ToString();
}
// Prepare the list with the child objects for the view.
if (childrenType == typeof(ContosoOpcUaNode).ToString())
{
Station station = (Station)TopologyTable[parentKey];
foreach (ContosoOpcUaNode opcUaNode in station.NodeList)
{
ContosoChildInfo childInfo = new ContosoChildInfo(station.Key,
opcUaNode.NodeId,
opcUaNode.Status.ToString(),
opcUaNode.SymbolicName,
opcUaNode.SymbolicName,
station.Location.City,
station.Location.Latitude,
station.Location.Longitude,
opcUaNode.Visible,
opcUaNode.Last.Value.ToString("0.###", CultureInfo.InvariantCulture),
opcUaNode.Units);
childrenInfo.Add(childInfo);
}
}
else
{
var childrenKeys = ((ContosoTopologyNode)TopologyTable[parentKey]).GetChildren();
foreach (string key in childrenKeys)
{
if (childrenType == typeof(Factory).ToString())
{
Factory factory = (Factory)TopologyTable[key];
ContosoChildInfo dashboardChild = new ContosoChildInfo(factory.Key, factory.Status.ToString(), factory.Name, factory.Description,
factory.Location.City, factory.Location.Latitude, factory.Location.Longitude, true);
childrenInfo.Add(dashboardChild);
}
if (childrenType == typeof(ProductionLine).ToString())
{
ProductionLine productionLine = (ProductionLine)TopologyTable[key];
ContosoChildInfo dashboardChild = new ContosoChildInfo(productionLine.Key, productionLine.Status.ToString(), productionLine.Name, productionLine.Description,
productionLine.Location.City, productionLine.Location.Latitude, productionLine.Location.Longitude, true);
childrenInfo.Add(dashboardChild);
}
if (childrenType == typeof(Station).ToString())
{
Station station = (Station)TopologyTable[key];
ContosoChildInfo dashboardChild = new ContosoChildInfo(station.Key, station.Status.ToString(), station.Name, station.Description,
station.Location.City, station.Location.Latitude, station.Location.Longitude, true);
childrenInfo.Add(dashboardChild);
}
}
}
return(childrenInfo);
}
/// <summary>
/// Update the OEE and KPI values
/// </summary>
public void UpdateAllKPIAndOEEValues(int histogram = 0)
{
// topology is updated from bottom to top nodes, add Production Line view
List <string> orderedlist = GetAllChildren(TopologyRoot.Key, typeof(ProductionLine));
// add factory view
orderedlist.AddRange(GetAllChildren(TopologyRoot.Key, typeof(Factory)));
// add top view
orderedlist.Add(TopologyRoot.Key);
bool updateStatus = false;
// update all, list is already in the right order to process sequentially
foreach (string item in orderedlist)
{
ContosoTopologyNode actualNode = this[item] as ContosoTopologyNode;
if (actualNode != null)
{
ContosoAggregatedOeeKpiHistogram oeeKpiHistogram = actualNode[histogram];
for (int i = 0; i < oeeKpiHistogram.Intervals.Count; i++)
{
ContosoAggregatedOeeKpiTimeSpan oeeKpiNode = oeeKpiHistogram[i];
oeeKpiNode.Reset();
List <string> children = actualNode.GetChildren();
foreach (string child in children)
{
// special case for child as OPC UA server
Station childStation = this[child] as Station;
if (childStation != null)
{
ContosoAggregatedOeeKpiTimeSpan oeeKpiChild = childStation[histogram, i];
// add all Oee and KPI using the metric for stations
oeeKpiNode.AddStation(oeeKpiChild);
// update alerts for the station
ContosoAggregatedOeeKpiHistogram childOeeKpiHistogram = childStation[histogram];
if (childOeeKpiHistogram.CheckAlerts)
{
UpdateKPIAndOeeAlerts(childStation);
}
}
else
{
ContosoTopologyNode childNode = this[child] as ContosoTopologyNode;
if (childNode != null)
{
ContosoAggregatedOeeKpiTimeSpan oeeKpiChild = childNode[histogram, i];
// add all Oee and KPI using the default metric
oeeKpiNode.Add(oeeKpiChild);
}
else
{
continue;
}
}
}
if (oeeKpiNode.EndTime > oeeKpiHistogram.EndTime)
{
oeeKpiHistogram.EndTime = oeeKpiNode.EndTime;
}
}
if (oeeKpiHistogram.CheckAlerts)
{
// check for alerts
UpdateKPIAndOeeAlerts(actualNode);
updateStatus = true;
}
}
}
if (updateStatus)
{
UpdateAllStatusTopology();
}
}
/// <summary>
/// Gets alert information for the given topology node and all nodes below it.
/// Multiple alerts with the same cause are consolidated and only the time information for the newest alert is returned.
/// This information will be shown in the UX.
/// </summary>
public List <ContosoAlertInfo> GetAlerts(string key)
{
List <ContosoAlert> alertList = GetAllAlerts(key);
List <ContosoAlertInfo> dashboardAlerts = new List <ContosoAlertInfo>();
ContosoAlertCause dummyAlertCause = new ContosoAlertCause();
ContosoAlertInfo dashboardAlert = new ContosoAlertInfo();
if (alertList.Count == 0)
{
return(dashboardAlerts);
}
List <string> allNodeKey = GetAllChildren(key);
// Add key itself as well.
allNodeKey.Add(key);
foreach (var nodeKey in allNodeKey)
{
ContosoTopologyNode topologyNode = TopologyTable[nodeKey] as ContosoTopologyNode;
List <ContosoAlert> childAlerts = topologyNode.Alerts;
if (childAlerts.Count > 0)
{
if (topologyNode.GetType() == typeof(Station))
{
Station station = topologyNode as Station;
// The OPC UA nodes only generate value alerts.
foreach (var opcNode in station.NodeList)
{
foreach (ContosoAlertCause alertCause in Enum.GetValues(dummyAlertCause.GetType()))
{
if (alertCause == ContosoAlertCause.AlertCauseValueBelowMinimum ||
alertCause == ContosoAlertCause.AlertCauseValueAboveMaximum)
{
// Aggregate similar alerts.
List <ContosoAlert> sameCauseAlerts = childAlerts.FindAll(x => (x.Cause == alertCause && x.Key == nodeKey && x.SubKey == opcNode.NodeId && x.Time != DateTime.MinValue));
if (sameCauseAlerts.Count > 0)
{
// Find the newest alert.
long newestTicks = sameCauseAlerts.Max(x => x.Time.Ticks);
ContosoAlert alert = sameCauseAlerts.Find(x => x.Time.Ticks == newestTicks);
// Create alert dashboard info and add it to the dashboard alert list.
dashboardAlert = CreateDashboardAlertInfo(alert, sameCauseAlerts.Count, nodeKey);
dashboardAlerts.Add(dashboardAlert);
}
}
}
}
// For the station node we handle performance alerts.
foreach (ContosoAlertCause alertCause in Enum.GetValues(dummyAlertCause.GetType()))
{
if (alertCause == ContosoAlertCause.AlertCauseValueBelowMinimum ||
alertCause == ContosoAlertCause.AlertCauseValueAboveMaximum)
{
continue;
}
// Aggregate similar alerts.
List <ContosoAlert> sameCauseAlerts = childAlerts.FindAll(x => (x.Cause == alertCause && x.Key == nodeKey && x.Time != DateTime.MinValue));
if (sameCauseAlerts.Count > 0)
{
// Find the newest alert.
long newestTicks = sameCauseAlerts.Max(x => x.Time.Ticks);
ContosoAlert alert = sameCauseAlerts.Find(x => x.Time.Ticks == newestTicks);
// Create alert dashboard info and add it to the dashboard alert list.
dashboardAlert = CreateDashboardAlertInfo(alert, sameCauseAlerts.Count, nodeKey);
dashboardAlerts.Add(dashboardAlert);
}
}
}
else
{
foreach (ContosoAlertCause alertCause in Enum.GetValues(dummyAlertCause.GetType()))
{
// Aggregate similar alerts.
List <ContosoAlert> sameCauseAlerts = childAlerts.FindAll(x => (x.Cause == alertCause && x.Key == nodeKey && x.Time != DateTime.MinValue));
if (sameCauseAlerts.Count > 0)
{
// Find the newest alert.
long newestTicks = sameCauseAlerts.Max(x => x.Time.Ticks);
ContosoAlert alert = sameCauseAlerts.Find(x => x.Time.Ticks == newestTicks);
// Create alert dashboard info and add it to the dashboard alert list.
dashboardAlert = CreateDashboardAlertInfo(alert, sameCauseAlerts.Count, nodeKey);
dashboardAlerts.Add(dashboardAlert);
}
}
}
}
}
dashboardAlerts.Sort(delegate(ContosoAlertInfo x, ContosoAlertInfo y)
{
if (x.Time < y.Time)
{
return(1);
}
if (x.Time == y.Time)
{
return(0);
}
return(-1);
});
return(dashboardAlerts);
}