public bool HasDataAfter(DateTime startT, DateTime endT)
{
bool result;
lock (_theEndTimeStampsLock)
{
EndTimeStamps.Sort();
result = endT <= EndTimeStamps.LastOrDefault();
}
return(result);
}
public bool GetData(List <Signal> signals, DateTime startT, DateTime endT, int windowSize, List <string> signalNames)
{
bool foundStart = false;
List <DateTime> possibleTimeStamps = new List <DateTime>();
lock (_theEndTimeStampsLock)
{
EndTimeStamps.Sort();
int i1;
int i2 = 0;
for (i1 = 0; i1 < EndTimeStamps.Count; i1++)
{
var firstEnd = EndTimeStamps[i1];
//find the first fragment that the start time stamp lies in.
if (startT <= firstEnd)
{
foundStart = true;
//find the last fragment that the end time stamp lines in
var endIdx = _findEndTimeFrame(endT, i1, EndTimeStamps);
if (endIdx == null)
{
// can not find end, the end might have not been read yet.
return(false);
}
else
{
i2 = (int)endIdx;
}
break;
}
}
if (!foundStart)
{
return(false);
}
//else
//{
// //delete all time stamp before i1
// EndTimeStamps.RemoveRange(0, i1);
// //for (int i = i1 - 1; i >= 0; i--)
// //{
// // EndTimeStamps.RemoveAt(i);
// //}
//}
//find the continuous time stamps that will be concatenated
possibleTimeStamps = EndTimeStamps.GetRange(i1, i2 - i1 + 1);
}
foreach (var name in signalNames)
{
Dictionary <DateTime, Signal> sig = null;
Signal firstSig, lastSig;
lock (_theInputSignalsLock)
{
sig = Signals[name];
firstSig = sig[possibleTimeStamps[0]];
lastSig = sig[possibleTimeStamps.LastOrDefault()];
}
var thisSig = new Signal(firstSig.PMUName, firstSig.SignalName);
thisSig.SamplingRate = firstSig.SamplingRate;
var firstDataPoint = firstSig.TimeStamps.IndexOf(startT);
var lastDataPoint = lastSig.TimeStamps.IndexOf(endT);
if (firstDataPoint == -1 && lastDataPoint == -1)
{
return(false);
}
if (possibleTimeStamps.Count == 1)
{
// if here's only 1 fragment, find the start and end point and get data between that range
//var lastDataPoint = firstSig.TimeStamps.IndexOf(endT);
if (lastDataPoint == -1)
{
//thisSig.Data = firstSig.Data;
thisSig.Data = firstSig.Data.GetRange(firstDataPoint, firstSig.Data.Count - firstDataPoint);
thisSig.Flags = firstSig.Flags.GetRange(firstDataPoint, firstSig.Flags.Count - firstDataPoint);
thisSig.TimeStamps = firstSig.TimeStamps.GetRange(firstDataPoint, firstSig.TimeStamps.Count - firstDataPoint);
}
else if (firstDataPoint == -1)
{
thisSig.Data = firstSig.Data.GetRange(0, lastDataPoint + 1);
thisSig.Flags = firstSig.Flags.GetRange(0, lastDataPoint + 1);
thisSig.TimeStamps = firstSig.TimeStamps.GetRange(0, lastDataPoint + 1);
}
else
{
thisSig.Data = firstSig.Data.GetRange(firstDataPoint, lastDataPoint - firstDataPoint + 1);
thisSig.Flags = firstSig.Flags.GetRange(firstDataPoint, lastDataPoint - firstDataPoint + 1);
thisSig.TimeStamps = firstSig.TimeStamps.GetRange(firstDataPoint, lastDataPoint - firstDataPoint + 1);
}
}
else
{
if (lastDataPoint == -1)
{
thisSig.Data = firstSig.Data.GetRange(firstDataPoint, firstSig.Data.Count - firstDataPoint);
thisSig.Flags = firstSig.Flags.GetRange(firstDataPoint, firstSig.Flags.Count - firstDataPoint);
thisSig.TimeStamps = firstSig.TimeStamps.GetRange(firstDataPoint, firstSig.TimeStamps.Count - firstDataPoint);
lock (_theInputSignalsLock)
{
for (int ii = 1; ii < possibleTimeStamps.Count; ii++)
{
if (sig[possibleTimeStamps[ii]].TimeStamps.LastOrDefault() <= endT)
{
thisSig.Data.AddRange(sig[possibleTimeStamps[ii]].Data);
thisSig.Flags.AddRange(sig[possibleTimeStamps[ii]].Flags);
thisSig.TimeStamps.AddRange(sig[possibleTimeStamps[ii]].TimeStamps);
}
}
}
}
else if (firstDataPoint == -1)
{
lock (_theInputSignalsLock)
{
for (int ii = 0; ii < possibleTimeStamps.Count; ii++)
{
if (sig[possibleTimeStamps[ii]].TimeStamps.LastOrDefault() <= endT)
{
thisSig.Data.AddRange(sig[possibleTimeStamps[ii]].Data);
thisSig.Flags.AddRange(sig[possibleTimeStamps[ii]].Flags);
thisSig.TimeStamps.AddRange(sig[possibleTimeStamps[ii]].TimeStamps);
}
else
{
thisSig.Data.AddRange(sig[possibleTimeStamps[ii]].Data.GetRange(0, lastDataPoint + 1));
thisSig.Flags.AddRange(sig[possibleTimeStamps[ii]].Flags.GetRange(0, lastDataPoint + 1));
thisSig.TimeStamps.AddRange(sig[possibleTimeStamps[ii]].TimeStamps.GetRange(0, lastDataPoint + 1));
}
}
}
}
else
{
// if need to put several fragment together, find the first partial piece first
thisSig.Data = firstSig.Data.GetRange(firstDataPoint, firstSig.Data.Count - firstDataPoint);
thisSig.Flags = firstSig.Flags.GetRange(firstDataPoint, firstSig.Flags.Count - firstDataPoint);
thisSig.TimeStamps = firstSig.TimeStamps.GetRange(firstDataPoint, firstSig.TimeStamps.Count - firstDataPoint);
// if there are middle pieces, add the middle pieces which should be whole pieces
for (int ii = 1; ii < possibleTimeStamps.Count; ii++)
{
thisSig.Data.AddRange(sig[possibleTimeStamps[ii]].Data);
thisSig.Flags.AddRange(sig[possibleTimeStamps[ii]].Flags);
thisSig.TimeStamps.AddRange(sig[possibleTimeStamps[ii]].TimeStamps);
}
}
// then add the last piece, which could be a partial piece too
//var lastSig = sig[possibleTimeStamps[possibleTimeStamps.Count - 1]];
//var lastDatPoint = lastSig.TimeStamps.IndexOf(endT);
//if (lastDatPoint == -1)
//{
// thisSig.Data.AddRange(lastSig.Data);
//}
//else
//{
// thisSig.Data.AddRange(lastSig.Data.GetRange(0, lastDatPoint + 1));
//}
}
//if (thisSig.Data.Count < windowSize)
//{
// return false;
//}
//else
if (thisSig.Data.Count > windowSize)
{
thisSig.Data.RemoveRange(windowSize, thisSig.Data.Count - windowSize);
thisSig.Flags.RemoveRange(windowSize, thisSig.Flags.Count - windowSize);
thisSig.TimeStamps.RemoveRange(windowSize, thisSig.TimeStamps.Count - windowSize);
signals.Add(thisSig);
}
else if (thisSig.Data.Count == windowSize)
{
signals.Add(thisSig);
}
else
{
return(false);
}
}
//EndTimeStamps.RemoveRange(0, i1);
return(true);
}