public override void Write(Thrift.SchemaElement tse, BinaryWriter writer, ArrayView values, DataColumnStatistics statistics)
{
int n = 0;
byte b = 0;
byte[] buffer = new byte[values.Count / 8 + 1];
int ib = 0;
foreach (bool flag in values.GetValuesAndReturnArray <bool>())
{
if (flag)
{
b |= (byte)(1 << n);
}
n++;
if (n == 8)
{
buffer[ib++] = b;
n = 0;
b = 0;
}
}
if (n != 0)
{
buffer[ib] = b;
}
writer.Write(buffer);
}
public override void Write(Thrift.SchemaElement tse, BinaryWriter writer, ArrayView values, DataColumnStatistics statistics)
{
foreach (Interval interval in values.GetValuesAndReturnArray <Interval>())
{
writer.Write(interval.Months);
writer.Write(interval.Days);
writer.Write(interval.Millis);
}
}
private void WriteAsFixedLengthByteArray(Thrift.SchemaElement tse, BinaryWriter writer, ArrayView values)
{
foreach (decimal d in values.GetValuesAndReturnArray <decimal>())
{
var bd = new BigDecimal(d, tse.Precision, tse.Scale);
byte[] itemData = bd.ToByteArray();
tse.Type_length = itemData.Length; //always re-set type length as it can differ from default type length
writer.Write(itemData);
}
}
private void WriteAsInt64(Thrift.SchemaElement tse, BinaryWriter writer, ArrayView values)
{
double scaleFactor = Math.Pow(10, tse.Scale);
foreach (decimal d in values.GetValuesAndReturnArray <decimal>())
{
try
{
long l = (long)(d * (decimal)scaleFactor);
writer.Write(l);
}
catch (OverflowException)
{
throw new ParquetException(
$"value '{d}' is too large to fit into scale {tse.Scale} and precision {tse.Precision}");
}
}
}
