/// <summary>
/// This method deletes the data stored in specified tags of the PI Data Archive
/// To delete data, it is required to first read the values that you want to delete, and then
/// Call the update values method with the AFUpdateOption.Remove option
/// <remarks>
/// </remarks>
/// </summary>
private void DeleteData()
{
try
{
ValidateParameters();
piConnectionHelper = new PiConnectionHelper(Server);
piConnectionHelper.Connect();
PIServer server = piConnectionHelper.GetPiServer();
var timer = Stopwatch.StartNew();
// Gets the tags and creates a point list with the tags, to prepare for bulk read call
var points = PIPoint.FindPIPoints(server, TagList);
var pointList = new PIPointList(points);
Logger.InfoFormat("Initialized PI Points for deletion: {0}", string.Join(", ", points.Select(p => p.Name)));
// converts strings to AFTime objects this will throw an error if invalid
var startTime = new AFTime(StartTime);
var endTime = new AFTime(EndTime);
if (startTime > endTime)
{
throw new PIDeleteUtilInvalidParameterException("Start Time must be smaller than End Time");
}
// defines the data eraser task that will work in parallel as the data querying task
dataEraser = new DataProcessor(EraseData);
var eraseTask = Task.Run(() => dataEraser.Run());
// splits iterates the period, over
foreach (var period in Library.Helpers.EachNDay(startTime, endTime, Days))
{
Logger.InfoFormat("Getting tags information for period {0} to {1} ({2} Days chunk)", startTime, endTime,
Days);
// makes the first data call
var data = pointList.RecordedValues(period, AFBoundaryType.Inside, null, false,
new PIPagingConfiguration(PIPageType.TagCount, 100));
Logger.InfoFormat("Adding the data to the queue for deletion. ({0} to {1})", startTime, endTime);
// we push this data into the data processor queue so we can continue to query for the rest of the data.
dataEraser.DataQueue.Add(data);
}
dataEraser.DataQueue.CompleteAdding();
// // this will tell the data eraser that no more data will be added and allow it to complete
eraseTask.Wait(); // waiting for the data processor to complete
Logger.InfoFormat(
"Deletion process completed in {0} seconds. With {1} events deleted (assuming there was no errors).",
Math.Round(timer.Elapsed.TotalSeconds, 0), dataEraser.TotalEventProcessed);
}
catch (Exception ex)
{
Logger.Error(ex);
}
}
public override void Run()
{
try
{
PiConnectionHelper piConnectionHelper = new PiConnectionHelper(Server);
piConnectionHelper.Connect();
PIServer pi = piConnectionHelper.GetPiServer();
List <PIPoint> points = PIPoint.FindPIPoints(pi, NameFilter, SourceFilter).ToList();
Logger.InfoFormat("{0} Tags Found", points.Count());
Logger.Info(string.Join(",", points.Select(p => p.Name)));
}
catch (Exception ex)
{
Logger.Error(ex);
}
}
public override void Run()
{
try
{
PiConnectionHelper piConnectionHelper = new PiConnectionHelper(Server);
piConnectionHelper.Connect();
PIServer pi = piConnectionHelper.GetPiServer();
PIPoint point = PIPoint.FindPIPoint(pi, Tag);
AFValue value = point.CurrentValue();
Logger.InfoFormat("The current value for PI Point {0} is : {1} - {2}", Tag, value.Timestamp, value.Value);
}
catch (Exception ex)
{
Logger.Error(ex);
}
}
public override void Run()
{
try
{
PiConnectionHelper piConnectionHelper = new PiConnectionHelper(Server);
piConnectionHelper.Connect();
PIServer pi = piConnectionHelper.GetPiServer();
PIPointList pointList = new PIPointList(PIPoint.FindPIPoints(pi, TagMask));
AFListResults <PIPoint, AFValue> values = pointList.CurrentValue();
foreach (AFValue val in values)
{
Logger.InfoFormat("The current value for PI Point {0} is : {1} - {2}", val.PIPoint, val.Timestamp, val.Value);
}
}
catch (Exception ex)
{
Logger.Error(ex);
}
}