/// <summary>
/// URLChangedOnNewPing executing helper method.
/// </summary>
public void OnNewPing(PingerData pingerData)
{
if (NewPing != null)
{
NewPing(this, pingerData);
}
}
/// <summary>
/// Gets latency data.
/// </summary>
private void Ping()
{
// start pinging
PingReply pingReply = _p.Send(_url);
// get ping
long ping = pingReply.RoundtripTime;
// calculate time passed
TimeSpan timeDifference = DateTime.UtcNow - _startTime;
// create pinger data
PingerData pingerData = null;
switch (pingReply.Status)
{
case IPStatus.Success:
pingerData = PingerData.CreateSuccess(ping, timeDifference);
break;
case IPStatus.TimedOut:
default:
pingerData = PingerData.CreateTimeout(timeDifference);
break;
}
// notify
OnNewPing(pingerData);
}
/// <summary>
/// Calculates the average from the latency queue and handle the queue size -> number of pings from which the average is calculated.
/// </summary>
private double ClaculateAverage(double manipulatedPing, PingerData pingerData)
{
// put value in queue, if not in queue its not used
if (pingerData.PingStatus == PingStatus.Success)
{
_pingQueue.Enqueue(manipulatedPing);
}
// initialize sum and count counters
double sum = 0;
int count = 0;
// sum all values and count them
_pingQueue.ToList().ForEach(new Action <double>((value) => { sum += value; count++; }));
// calculate average
double averagePing = sum / count;
// dequeue old values if there is more than 50 stored
if (_pingQueue.Count > 50)
{
_pingQueue.Dequeue();
}
// return result
return(averagePing);
}
/// <summary>
/// Creates a new instance of the <see cref="PingManipulatorResult"/> class.
/// </summary>
public PingManipulatorResult(PingerData pingerData, double ping, double average, double time)
{
PingerData = pingerData;
Ping = ping;
Average = average;
Time = time;
}
/// <summary>
/// If pinger data is success just converts the value if not returns the last successful.
/// </summary>
private double CalculatePing(PingerData pingerData)
{
if (pingerData.PingStatus == PingStatus.Success)
{
return(Convert.ToDouble(pingerData.Ping));
}
else
{
return(_pingQueue.Peek());
}
}
/// <summary>
/// Manipulates the raw data into PingManipulatorResult.
/// Calculates latency, average latency, time between pings.
/// </summary>
public PingManipulatorResult Calculate(PingerData pingerData)
{
// get ping
double manipulatedPing = CalculatePing(pingerData);
// handle average calculation
double averagePing = ClaculateAverage(manipulatedPing, pingerData);
// calculate time
double time = CalculateTime(pingerData.Time);
// return result
return(new PingManipulatorResult(pingerData, manipulatedPing, averagePing, time));
}
