private bool ValidateOutputFormat()
{
bool valid = false;
try
{
object[] args = new object[OutputPlainTextDataFormat.Text.Split('{').Where(value => !string.IsNullOrWhiteSpace(value)).Select(value => int.Parse(value.Split(':')[0])).Max() + 1];
ArchiveDataPoint sample = new ArchiveDataPoint(1);
for (int i = 0; i < args.Length; i++)
{
args[i] = sample;
}
Encoding.ASCII.GetBytes(string.Format(OutputPlainTextDataFormat.Text, args));
valid = true;
}
catch (Exception ex)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("Invalid Data Output Format: ");
sb.AppendLine(ex.Message);
sb.AppendLine();
sb.AppendLine("A valid format, for example, is:");
sb.AppendLine("{0:Source}:{1:ID},{2:Name},{3:Synonym1},{4:Time},{5:UnixTime},{6:Value},{7:Quality},{8:Description}");
MessageBox.Show(sb.ToString(), "Invalid Output Data Format", MessageBoxButtons.OK);
OutputPlainTextDataFormat.Focus();
}
return(valid);
}
private IEnumerable <IDataPoint> ReadDataStream(TreeStream <HistorianKey, HistorianValue> stream)
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
List <ArchiveDataPoint> queriedData = new List <ArchiveDataPoint>();
ArchiveDataPoint point;
MeasurementStateFlags stateFlags;
while (stream.Read(key, value))
{
point = new ArchiveDataPoint((int)key.PointID);
point.Time = new TimeTag(new DateTime((long)key.Timestamp));
point.Value = BitConvert.ToSingle(value.Value1);
stateFlags = (MeasurementStateFlags)value.Value3;
if ((stateFlags & MeasurementStateFlags.BadData) == 0)
{
if ((stateFlags & MeasurementStateFlags.BadTime) == 0)
{
point.Quality = Quality.Good;
}
else
{
point.Quality = Quality.Old;
}
}
else
{
point.Quality = Quality.SuspectData;
}
queriedData.Add(point);
}
return(queriedData);
}
