public void Timestamp(DateTime value, PrecisionResolutionStrategy resolutionStrategy)
{
if (value != null && value.Kind != DateTimeKind.Utc)
{
throw new ArgumentException("Timestamps must be specified as UTC", nameof(value));
}
Timestamp(value - UnixEpoch, resolutionStrategy);
}
public void Timestamp(long nanoseconds, PrecisionResolutionStrategy resolutionStrategy)
{
var nanosecondsAbovePrecision = nanoseconds % (long)Precision;
if (nanosecondsAbovePrecision != 0)
{
switch (resolutionStrategy)
{
case PrecisionResolutionStrategy.Error:
throw new ArgumentOutOfRangeException(nameof(nanoseconds));
case PrecisionResolutionStrategy.Floor:
nanoseconds -= nanosecondsAbovePrecision;
break;
case PrecisionResolutionStrategy.Ceiling:
nanoseconds += (long)Precision - nanosecondsAbovePrecision;
break;
case PrecisionResolutionStrategy.Round:
if (nanosecondsAbovePrecision < (long)Precision / 2)
{
Timestamp(nanoseconds, PrecisionResolutionStrategy.Floor);
}
else
{
Timestamp(nanoseconds, PrecisionResolutionStrategy.Ceiling);
}
return;
default:
throw new ArgumentOutOfRangeException(nameof(resolutionStrategy));
}
}
switch (position)
{
case LinePosition.FieldWritten:
textWriter.Write(" ");
break;
case LinePosition.NothingWritten:
throw InvalidPositionException("Cannot write timestamp as no measurement name written.");
default:
throw InvalidPositionException("Cannot write timestamp as no field written for current measurement.");
}
var timestamp = nanoseconds / (long)Precision;
textWriter.Write(timestamp.ToString(CultureInfo.InvariantCulture));
position = LinePosition.TimestampWritten;
}
public LineProtocolWriter(Precision precision, PrecisionResolutionStrategy defaultResolutionStrategy = PrecisionResolutionStrategy.Error)
{
if (!Enum.IsDefined(typeof(Precision), precision))
{
throw new ArgumentOutOfRangeException(nameof(precision));
}
if (!Enum.IsDefined(typeof(PrecisionResolutionStrategy), defaultResolutionStrategy))
{
throw new ArgumentOutOfRangeException(nameof(defaultResolutionStrategy));
}
this.Precision = precision;
this.defaultResolutionStrategy = defaultResolutionStrategy;
this.textWriter = new StringWriter();
}
public void Timestamp(DateTimeOffset value, PrecisionResolutionStrategy resolutionStrategy)
{
Timestamp(value.UtcDateTime, resolutionStrategy);
}
public void Timestamp(TimeSpan value, PrecisionResolutionStrategy resolutionStrategy)
{
Timestamp(value.Ticks * 100, resolutionStrategy);
}
