public DataPointCircularQueueDto Read()
{
DataPointCircularQueueDto dto = this.dto = new DataPointCircularQueueDto();
this.dto.Dao = this;
ReadDataPoints();
this.dto = null;
return(dto);
}
private void CreateEmptyDataPoints(DataPointCircularQueueDto dto)
{
Debug.Assert(dto.MaxDataPoints >= dto.DataPoints.Length);
// Write out the balance of empty data points
for (int i = 0; i < dto.MaxDataPoints; i++)
{
DataPointDto emptyDataPointDto = new DataPointDto();
emptyDataPointDto.Empty = true;
emptyDataPointDto.Timestamp = DateTime.Now;
emptyDataPointDto.Value = Double.NaN;
BinaryFileDataPointDao dataPointDao = new BinaryFileDataPointDao(this.archiveDao);
dataPointDao.Write(emptyDataPointDto);
this.dataPoints.Add(dataPointDao);
}
}
private void CreateDataPoints(DataPointCircularQueueDto dto)
{
// Write the actual data points & any empty data points not yet used
this.maxSize = dto.MaxDataPoints;
WriteState();
if (dataPointPosition != BinaryFileDao.UnknownOffset)
{
Writer.Seek((int)this.dataPointPosition, SeekOrigin.Begin);
}
else
{
this.dataPointPosition = Writer.BaseStream.Position;
}
CreateEmptyDataPoints(dto);
// The data points that do exist, overwrite the empty data points
foreach (DataPointDto dataPointDto in dto.DataPoints)
{
Push(dataPointDto);
}
}
public virtual void Create(DataPointCircularQueueDto dataPoints)
{
SeekEnd();
CreateDataPoints(dataPoints);
}