private void InitializeDataPipe()
{
//This method subscribes to the data pipe for the source PI Data Archive
//Create observer
PIDataPipeObserver snapshotObserver = new PIDataPipeObserver("Snapshot");
//Add relevant PI points to the pipe
snapshotPipe.AddSignups(PIPoints.CurrentPIPoints_Source);
//Subscribe to daters
snapshotPipe.Subscribe(snapshotObserver);
}//InitializeDataPipe
/// <summary>
/// Connects to the configured PI server.
/// </summary>
protected override void AttemptConnection()
{
m_connection = new PIConnection
{
ServerName = this.ServerName,
UserName = this.UserName,
Password = this.Password,
ConnectTimeout = this.ConnectTimeout
};
m_connection.Disconnected += m_connection_Disconnected;
m_connection.Open();
m_dataPipe = new PIDataPipe(AFDataPipeType.Snapshot);
m_dataPipe.Subscribe(m_dataUpdateObserver);
if (AutoStart && (object)OutputMeasurements != null && OutputMeasurements.Any())
{
SubscribeToPointUpdates(this.OutputMeasurementKeys());
}
}
/// <summary>
/// Creates a datapipe handler for a PIDataPipe
/// </summary>
/// <param name="observer">The observer object that will receive the data changes</param>
public DataPipeHandler(IObserver <AFDataPipeEvent> observer, AFDataPipeType pipeType)
{
_PIPipe = new PIDataPipe(pipeType);
_PIPipe.Subscribe(observer);
}
public static void Run(PIServer piserver)
{
//Constructs a new PIDataPipe to signup for events on a list of PIPoint objects
PIDataPipe piDP_A = new PIDataPipe(AFDataPipeType.TimeSeries);
try
{
//List of PIPoints
var ptListNames = new List <string> {
"sinusoid", "CDT158", "CDT158Testt"
};
var ptList = PIPoint.FindPIPoints(piserver, ptListNames.AsEnumerable());
//Find Tags Available in the DataArchive
foreach (var val in ptListNames)
{
if ((PIPoint.TryFindPIPoint(piserver, val, out PIPoint point) == false))
{
Console.WriteLine("Tag Has been DELETED: {0}", val.ToString());
}
}
Console.ReadLine();
//PIDataPipe1
//Moved below line above try block
//PIDataPipe piDP_A = new PIDataPipe(AFDataPipeType.TimeSeries);
//Take Returns a specified number of contiguous elements from the start of a sequence.
var errPIa = piDP_A.AddSignups(ptList.Take(2).ToList());
var observerpiA = new Pipe_Observer("observerpiA");
// registering an Iobserver for ADDataPipeEvent with the PIDataPipe. All the AFDataPipeEvents received by the data pipe will
// be sent to the IObserver.
piDP_A.Subscribe(observerpiA);
//using 3 minutes time to gracefully exiting and showing how dispose is working in finally block
DateTime start = DateTime.Now;
while (true && DateTime.Now.Subtract(start).Minutes < 3)
{
bool hasMorePiA;
//Get updates.... Trigger retrival of new events
var PIa = piDP_A.GetObserverEvents(100, out hasMorePiA);
// out hasMorePiA - Indicates whether there could be more events in the pipe. hasMorePiA is set to true whenever the number of result
// events reach maxEventCountPerServer for any one PI Data Archive within the pipe.
if (hasMorePiA == true)
{
Console.WriteLine("the number of result events reach maxEventCountPerServer for any one PI Data Archive within the pipe");
}
// while (hasMorePiA) ;
}
}
catch (Exception ex)
{
Logs Err = new Logs();
Err.MyLogFile(ex);
Console.WriteLine("An Error has occured for details please check the Log File:'" + ex.Message + "'");
Console.ReadLine();
}
finally
{
//close – which will terminate the data pipes connection to the PI Servers associated with the monitored PI Point Object
//Dispose - which will terminate the data pipes connection to the PI Servers associated with the monitored PI Point Object.
//This method also releases the resources used by the PIDataPipe
piDP_A.Close();
piDP_A.Dispose();
}
}
internal void Execute(string command, PIPointList pointsList, AFTime st, AFTime et,
AFTimeSpan summaryDuration, string[] times, string addlparam1, PIServer myServer)
{
try
{
Console.WriteLine();
switch (command)
{
case "snap":
{
var sb = new StringBuilder();
sb.AppendLine($"Point Name(Point Id), Timestamp, Current Value");
sb.AppendLine(new string('-', 45));
AFListResults <PIPoint, AFValue> results = pointsList.EndOfStream();
if (results.HasErrors)
{
foreach (var e in results.Errors)
{
sb.AppendLine($"{e.Key}: {e.Value}");
}
}
foreach (var v in results.Results)
{
if (!results.Errors.ContainsKey(v.PIPoint))
{
sb.AppendLine($"{string.Concat($"{v.PIPoint.Name} ({v.PIPoint.ID})"),-15}," +
$" {v.Timestamp}, {v.Value}");
}
}
sb.AppendLine();
Console.Write(sb.ToString());
break;
}
case "arclist":
{
AFTimeRange timeRange = new AFTimeRange(st, et);
if (!Int32.TryParse(addlparam1, out int maxcount))
{
maxcount = 0;
}
// Holds the results keyed on the associated point
var resultsMap = new Dictionary <PIPoint, AFValues>();
var pagingConfig = new PIPagingConfiguration(PIPageType.TagCount, GlobalConfig.PageSize);
IEnumerable <AFValues> listResults = pointsList.RecordedValues(timeRange: timeRange,
boundaryType: AFBoundaryType.Inside,
filterExpression: null,
includeFilteredValues: false,
pagingConfig: pagingConfig,
maxCount: maxcount
);
foreach (var pointResults in listResults)
{
resultsMap[pointResults.PIPoint] = pointResults;
}
foreach (var pointValues in resultsMap)
{
var sb = new StringBuilder();
sb.AppendLine($"Point: {pointValues.Key} Archive Values " +
$"Count: {pointValues.Value.Count}");
sb.AppendLine(new string('-', 45));
pointValues.Value.ForEach(v => sb.AppendLine($"{v.Timestamp}, {v.Value}"));
sb.AppendLine();
Console.Write(sb.ToString());
}
break;
}
case "plot":
{
AFTimeRange timeRange = new AFTimeRange(st, et);
if (!Int32.TryParse(addlparam1, out int intervals))
{
intervals = 640; //horizontal pixels in the trend
}
var resultsMap = new Dictionary <PIPoint, AFValues>();
var pagingConfig = new PIPagingConfiguration(PIPageType.TagCount, GlobalConfig.PageSize);
IEnumerable <AFValues> listResults = pointsList.PlotValues(timeRange: timeRange,
intervals: intervals,
pagingConfig: pagingConfig
);
foreach (var pointResults in listResults)
{
resultsMap[pointResults.PIPoint] = pointResults;
}
foreach (var pointValues in resultsMap)
{
var sb = new StringBuilder();
sb.AppendLine($"Point: {pointValues.Key} Plot Values Interval: {intervals}" +
$" Count: {pointValues.Value.Count}");
sb.AppendLine(new string('-', 45));
pointValues.Value.ForEach(v => sb.AppendLine($"{v.Timestamp}, {v.Value}"));
sb.AppendLine();
Console.Write(sb.ToString());
}
break;
}
case "interp":
{
AFTimeRange timeRange = new AFTimeRange(st, et);
var resultsMap = new Dictionary <PIPoint, AFValues>();
var pagingConfig = new PIPagingConfiguration(PIPageType.TagCount, GlobalConfig.PageSize);
if (addlparam1.StartsWith("c="))
{
if (!Int32.TryParse(addlparam1.Substring(2), out int count))
{
count = 10; //default count
}
IEnumerable <AFValues> listResults = pointsList.InterpolatedValuesByCount(timeRange: timeRange,
numberOfValues: count,
filterExpression: null,
includeFilteredValues: false,
pagingConfig: pagingConfig
);
foreach (var pointResults in listResults)
{
resultsMap[pointResults.PIPoint] = pointResults;
}
foreach (var pointValues in resultsMap)
{
var sb = new StringBuilder();
sb.AppendLine($"Point: {pointValues.Key} Interpolated Values " +
$"Count: {pointValues.Value.Count}");
sb.AppendLine(new string('-', 45));
pointValues.Value.ForEach(v => sb.AppendLine($"{v.Timestamp}, {v.Value}"));
sb.AppendLine();
Console.Write(sb.ToString());
}
}
else
{
if (!AFTimeSpan.TryParse(addlparam1, out AFTimeSpan interval) || interval == new AFTimeSpan(0))
{
interval = summaryDuration;
}
IEnumerable <AFValues> listResults = pointsList.InterpolatedValues(timeRange: timeRange,
interval: interval,
filterExpression: null,
includeFilteredValues: false,
pagingConfig: pagingConfig
);
foreach (var pointResults in listResults)
{
resultsMap[pointResults.PIPoint] = pointResults;
}
foreach (var pointValues in resultsMap)
{
var sb = new StringBuilder();
sb.AppendLine($"Point: {pointValues.Key} Interpolated Values " +
$"Interval: {interval.ToString()}");
sb.AppendLine(new string('-', 45));
pointValues.Value.ForEach(v => sb.AppendLine($"{v.Timestamp}, {v.Value}"));
sb.AppendLine();
Console.Write(sb.ToString());
}
}
break;
}
case "summaries":
{
var resultsMap = new Dictionary <PIPoint, AFValues>();
var pagingConfig = new PIPagingConfiguration(PIPageType.TagCount, GlobalConfig.PageSize);
if (st > et) //summaries cannot handle reversed times
{
var temp = st;
st = et;
et = temp;
}
AFTimeRange timeRange = new AFTimeRange(st, et);
var intervalDefinitions = new AFTimeIntervalDefinition(timeRange, 1);
AFCalculationBasis calculationBasis = AFCalculationBasis.EventWeighted;
if (addlparam1 == "t")
{
calculationBasis = AFCalculationBasis.TimeWeighted;
}
foreach (var pt in pointsList)
{
var summaryType = AFSummaryTypes.All;
if (pt.PointType == PIPointType.Digital ||
pt.PointType == PIPointType.Timestamp ||
pt.PointType == PIPointType.Blob ||
pt.PointType == PIPointType.String ||
pt.PointType == PIPointType.Null)
{
summaryType = AFSummaryTypes.AllForNonNumeric;
}
IDictionary <AFSummaryTypes, AFValues> summaries = pt.Summaries(new List <AFTimeIntervalDefinition>()
{
intervalDefinitions
},
reverseTime: false,
summaryType: summaryType,
calcBasis: calculationBasis,
timeType: AFTimestampCalculation.Auto
);
var sb = new StringBuilder();
sb.AppendLine($"Point: {pt.Name} {calculationBasis} Summary");
sb.AppendLine(new string('-', 45));
foreach (var s in summaries)
{
AFValues vals = s.Value;
foreach (var v in vals)
{
if (v.Value.GetType() != typeof(PIException))
{
if (string.Compare(s.Key.ToString(), "Minimum", true) == 0 ||
string.Compare(s.Key.ToString(), "Maximum", true) == 0)
{
sb.AppendLine($"{s.Key,-16}: {v.Value,-20} {v.Timestamp}");
}
else
{
sb.AppendLine($"{s.Key,-16}: {v.Value}");
}
}
else
{
sb.AppendLine($"{s.Key,-16}: {v}");
}
}
}
sb.AppendLine();
Console.Write(sb.ToString());
}
/*
* Non numeric tags in pointsList requires splitting of queries so the above is preferred.
* The below implementation works when there are no non-numeric types or one particular summary needs to be run
*/
//var listResults = pointsList.Summaries(new List<AFTimeIntervalDefinition>() {
// intervalDefinitions },
// reverseTime: false,
// summaryTypes: AFSummaryTypes.All,
// calculationBasis: calculationBasis,
// timeType: AFTimestampCalculation.Auto,
// pagingConfig: pagingConfig
// );
//foreach (IDictionary<AFSummaryTypes, AFValues> summaries in listResults)
//{
// foreach (IDictionary<AFSummaryTypes, AFValues> pointResults in listResults)
// {
// AFValues pointValues = pointResults[AFSummaryTypes.Average];
// PIPoint point = pointValues.PIPoint;
// //Map the results back to the point
// resultsMap[point] = pointValues;
// }
//}
break;
}
case "update":
case "annotate":
{
string addlparam2 = string.Empty;
AFUpdateOption updateOption = AFUpdateOption.Replace;
AFBufferOption bufOption = AFBufferOption.BufferIfPossible;
AFValue val;
if (times.Length > 0)
{
addlparam1 = times[0];
if (times.Length > 1)
{
addlparam2 = times[1];
}
}
switch (addlparam1)
{
case "i":
updateOption = AFUpdateOption.Insert;
break;
case "nr":
updateOption = AFUpdateOption.NoReplace;
break;
case "ro":
updateOption = AFUpdateOption.ReplaceOnly;
break;
case "inc":
updateOption = AFUpdateOption.InsertNoCompression;
break;
case "rm":
updateOption = AFUpdateOption.Remove;
break;
}
switch (addlparam2)
{
case "dnb":
bufOption = AFBufferOption.DoNotBuffer;
break;
case "buf":
bufOption = AFBufferOption.Buffer;
break;
}
foreach (var pt in pointsList)
{
Console.WriteLine($"Point: {pt.Name} {command} ({updateOption} {bufOption})");
Console.WriteLine(new string('-', 45));
Console.Write("Enter timestamp: ");
var time = Console.ReadLine();
if (!AFTime.TryParse(time, out AFTime ts))
{
ParseArgs.PrintHelp("Invalid Timestamp");
break;
}
if (command == "update" ||
!(pt.RecordedValuesAtTimes(new List <AFTime>()
{
ts
}, AFRetrievalMode.Exact)[0].IsGood))
{
Console.Write("Enter new value: ");
var data = Console.ReadLine();
if (!Double.TryParse(data, out var value))
{
ParseArgs.PrintHelp("Invalid data");
break;
}
val = new AFValue(value, ts);
}
else
{
val = pt.RecordedValuesAtTimes(new List <AFTime>()
{
ts
}, AFRetrievalMode.Exact)[0];
}
if (command == "annotate")
{
Console.Write("Enter annotation: ");
var ann = Console.ReadLine();
pt.SetAnnotation(val, ann);
}
pt.UpdateValue(value: val, option: updateOption, bufferOption: bufOption);
Console.WriteLine($"Successfully {command}d");
}
Console.WriteLine();
break;
}
case "delete":
{
AFTimeRange timeRange = new AFTimeRange(st, et);
if (myServer.Supports(PIServerFeature.DeleteRange))
{
foreach (var pt in pointsList)
{
int delcount = 0;
var sb = new StringBuilder();
var intervalDefinitions = new AFTimeIntervalDefinition(timeRange, 1);
//getting the count of events - optional
IDictionary <AFSummaryTypes, AFValues> summaries = pt.Summaries(new List <AFTimeIntervalDefinition>()
{
intervalDefinitions
},
reverseTime: false,
summaryType: AFSummaryTypes.Count,
calcBasis: AFCalculationBasis.EventWeighted,
timeType: AFTimestampCalculation.Auto
);
foreach (var s in summaries)
{
AFValues vals = s.Value;
vals = s.Value;
foreach (var v in vals)
{
if (v.Value.GetType() != typeof(PIException))
{
delcount = v.ValueAsInt32(); //count
}
}
}
if (delcount > 0)
{
var errs = pt.ReplaceValues(timeRange, new List <AFValue>()
{
});
if (errs != null)
{
foreach (var e in errs.Errors)
{
sb.AppendLine($"{e.Key}: {e.Value}");
delcount--;
}
}
}
sb.AppendLine($"Point: {pt.Name} Deleted {delcount} events");
sb.AppendLine(new string('-', 45));
sb.AppendLine();
Console.Write(sb.ToString());
}
}
else
{
foreach (var pt in pointsList)
{
int delcount = 0;
var sb = new StringBuilder();
AFValues vals = pt.RecordedValues(timeRange: timeRange,
boundaryType: AFBoundaryType.Inside,
filterExpression: null,
includeFilteredValues: false,
maxCount: 0
);
delcount = vals.Count;
if (delcount > 0)
{
var errs = pt.UpdateValues(values: vals,
updateOption: AFUpdateOption.Remove,
bufferOption: AFBufferOption.BufferIfPossible);
if (errs != null)
{
foreach (var e in errs.Errors)
{
sb.AppendLine($"{e.Key}: {e.Value}");
delcount--;
}
}
}
sb.AppendLine($"Point: {pt.Name} Deleted {delcount} events");
sb.AppendLine(new string('-', 45));
sb.AppendLine();
Console.Write(sb.ToString());
}
}
break;
}
case "sign,t":
{
Dictionary <PIPoint, int> errPoints = pointsList.ToDictionary(key => key, value => 0);
//if (Int32.TryParse(myServer.ServerVersion.Substring(4, 3), out int srvbuild) && srvbuild >= 395);
if (myServer.Supports(PIServerFeature.TimeSeriesDataPipe))
{
PIDataPipe timeSeriesDatapipe = new PIDataPipe(AFDataPipeType.TimeSeries);
Console.WriteLine("Signing up for TimeSeries events");
var errs = timeSeriesDatapipe.AddSignups(pointsList);
if (errs != null)
{
foreach (var e in errs.Errors)
{
Console.WriteLine($"Failed timeseries signup: {e.Key}, {e.Value.Message}");
errPoints[e.Key]++;
}
foreach (var ep in errPoints)
{
if (ep.Value >= 1)
{
pointsList.Remove(ep.Key);
}
}
if (pointsList.Count == 0)
{
ParseArgs.PrintHelp("No valid PI Points");
if (timeSeriesDatapipe != null)
{
timeSeriesDatapipe.Close();
timeSeriesDatapipe.Dispose();
}
return;
}
}
timeSeriesDatapipe.Subscribe(new DataPipeObserver("TimeSeries"));
Console.WriteLine("Subscribed Points (current value): ");
AFListResults <PIPoint, AFValue> results = pointsList.EndOfStream();
if (results.HasErrors)
{
foreach (var e in results.Errors)
{
Console.WriteLine($"{e.Key}: {e.Value}");
}
}
foreach (var v in results.Results)
{
if (!results.Errors.ContainsKey(v.PIPoint))
{
Console.WriteLine($"{v.PIPoint.Name,-12}, {v.Timestamp}, {v.Value}");
}
}
Console.WriteLine(new string('-', 45));
//Fetch timeseries events till user termination
while (!GlobalConfig.CancelSignups)
{
timeSeriesDatapipe.GetObserverEvents(GlobalConfig.PipeMaxEvtCount, out bool hasMoreEvents);
Thread.Sleep(GlobalConfig.PipeCheckFreq);
}
Console.WriteLine("Cancelling signups ...");
if (timeSeriesDatapipe != null)
{
timeSeriesDatapipe.Close();
timeSeriesDatapipe.Dispose();
}
}
else
{
ParseArgs.PrintHelp($"Time series not supported in Archive version {myServer.ServerVersion}");
}
break;
}
case "sign,as":
case "sign,sa":
case "sign,a":
case "sign,s":
{
bool snapSubscribe = false;
bool archSubscribe = false;
PIDataPipe snapDatapipe = null;
PIDataPipe archDatapipe = null;
Dictionary <PIPoint, int> errPoints = pointsList.ToDictionary(key => key, value => 0);
if (command.Substring(5).Contains("s"))
{
snapSubscribe = true;
snapDatapipe = new PIDataPipe(AFDataPipeType.Snapshot);
Console.WriteLine("Signing up for Snapshot events");
var errs = snapDatapipe.AddSignups(pointsList);
snapDatapipe.Subscribe(new DataPipeObserver("Snapshot"));
if (errs != null)
{
foreach (var e in errs.Errors)
{
Console.WriteLine($"Failed snapshot signup: {e.Key}, {e.Value.Message}");
errPoints[e.Key]++;
}
}
}
if (command.Substring(5).Contains("a"))
{
archSubscribe = true;
archDatapipe = new PIDataPipe(AFDataPipeType.Archive);
Console.WriteLine("Signing up for Archive events");
var errs = archDatapipe.AddSignups(pointsList);
if (errs != null)
{
foreach (var e in errs.Errors)
{
Console.WriteLine($"Failed archive signup: {e.Key}, {e.Value.Message}");
errPoints[e.Key]++;
}
}
archDatapipe.Subscribe(new DataPipeObserver("Archive "));
}
//remove unsubscribable points
int errorLimit = snapSubscribe ? 1 : 0;
if (archSubscribe)
{
errorLimit++;
}
foreach (var ep in errPoints)
{
if (ep.Value >= errorLimit)
{
pointsList.Remove(ep.Key);
}
}
if (pointsList.Count == 0)
{
ParseArgs.PrintHelp("No valid PI Points");
if (snapDatapipe != null)
{
snapDatapipe.Close();
snapDatapipe.Dispose();
}
if (archDatapipe != null)
{
archDatapipe.Close();
archDatapipe.Dispose();
}
return;
}
Console.WriteLine("Subscribed Points (current value): ");
//foreach (var p in pointsList)
//{
// Console.WriteLine($"{p.Name,-12}, {p.EndOfStream().Timestamp}, {p.EndOfStream()}");
//}
AFListResults <PIPoint, AFValue> results = pointsList.EndOfStream();
if (results.HasErrors)
{
foreach (var e in results.Errors)
{
Console.WriteLine($"{e.Key}: {e.Value}");
}
}
foreach (var v in results.Results)
{
if (!results.Errors.ContainsKey(v.PIPoint))
{
Console.WriteLine($"{v.PIPoint.Name,-12}, {v.Timestamp}, {v.Value}");
}
}
Console.WriteLine(new string('-', 45));
//Fetch events from the data pipes
while (!GlobalConfig.CancelSignups)
{
if (snapSubscribe)
{
snapDatapipe.GetObserverEvents(GlobalConfig.PipeMaxEvtCount, out bool hasMoreEvents1);
}
if (archSubscribe)
{
archDatapipe.GetObserverEvents(GlobalConfig.PipeMaxEvtCount, out bool hasMoreEvents2);
}
Thread.Sleep(GlobalConfig.PipeCheckFreq);
}
Console.WriteLine("Cancelling signups ...");
if (snapDatapipe != null)
{
snapDatapipe.Close();
snapDatapipe.Dispose();
}
if (archDatapipe != null)
{
archDatapipe.Close();
archDatapipe.Dispose();
}
}
break;
}
Console.WriteLine(new string('~', 45));
}
catch (Exception ex)
{
ParseArgs.PrintHelp(ex.Message);
if (myServer != null)
{
myServer.Disconnect();
if (GlobalConfig.Debug)
{
Console.WriteLine($"Disconnecting from {myServer.Name}");
}
}
}
}