public bool StopCounter(int id)
{
PerformanceMonitorRecord recordToUpdate =
_performanceMonitorDataService.PerformanceMonitorRecords.FirstOrDefault(r => r.Id == id);
string performanceCounterReading =
_performanceCounterService.GetPerformanceCounterReading(recordToUpdate.CategoryName, recordToUpdate.InstanceName, recordToUpdate.CounterName);
//threshold check
bool passedThreshold;
var passedThresholdValue = 0;
double countervalue = double.Parse(performanceCounterReading);
passedThreshold = _performanceMonitorService.CheckThreshold(recordToUpdate.Threshold, recordToUpdate.ThresholdWhen, countervalue, ref passedThresholdValue);
//calculate the the duration (in ticks)
DateTime startTime = (DateTime)recordToUpdate.Created;
TimeSpan durationCount = DateTime.Now.Subtract(startTime);
DateTime sharedTimeStampValue = DateTime.Now;
//first write last values to datarecord (then to the monitorrecord for min/max/average)
PerformanceMonitorDataRecord datarecord = new PerformanceMonitorDataRecord()
{
PerformanceMonitorRecord_Id = recordToUpdate.Id,
//should be finally equal to latest reading in performancemonitorrecord
Count = performanceCounterReading,
HeartBeat = sharedTimeStampValue,
PassedThreshold = passedThreshold,
PassedThresholdValue = passedThresholdValue,
//duration count(ticks in nanoseconds from starttime (created)) should be equal to value in performancemonitorrecord
Ticks = Convert.ToString(durationCount.Ticks)
};
var result = _performanceMonitorDataService.WriteDataRecord(datarecord);
if (result)
{
recordToUpdate.LastValue = performanceCounterReading;
recordToUpdate.DurationCount = Convert.ToString(durationCount.Ticks);
recordToUpdate.EndTime = sharedTimeStampValue;
//mean, min and max values
List <PerformanceMonitorDataRecord> dataRecords = _performanceMonitorDataService.GetDataRecords(id);
//first convert counted values from string to int
List <double> countedValues = new List <double>();
bool conversionResult = false;
foreach (PerformanceMonitorDataRecord record in dataRecords)
{
double value;
bool conversionPassed = double.TryParse(record.Count, out value);
if (conversionPassed)
{
countedValues.Add(value);
conversionResult = true;
}
else
{
//conversion failed
conversionResult = false;
}
}
double meanValue = 0;
double minValue = 0;
double maxValue = 0;
if (conversionResult)
{
meanValue = Math.Round(countedValues.Average(), 2);
minValue = Math.Round(countedValues.Min(), 2);
maxValue = Math.Round(countedValues.Max(), 2);
}
recordToUpdate.Mean = meanValue;
recordToUpdate.Minimum = minValue;
recordToUpdate.Maximum = maxValue;
var monitorrecordresult = _performanceMonitorDataService.UpdatePerformanceMonitorRecord(recordToUpdate);
if (monitorrecordresult)
{
_notifier.Information(T("Counter stopped and all values updated succesfully"));
}
else
{
_notifier.Error(T("Error: Failed to stop counter and update the monitor record"));
}
}
else
{
_notifier.Error(T("Error: Failed to stop counter and update all records"));
}
return(result);
}
