private Field GetField(PropertyInfo property)
{
Type pt = property.PropertyType;
if (pt.IsNullable())
{
pt = pt.GetNonNullable();
}
if (pt.IsArray)
{
pt = pt.GetElementType();
}
IDataTypeHandler handler = DataTypeFactory.Match(pt);
if (handler == null)
{
return(null);
}
ParquetColumnAttribute columnAttr = property.GetCustomAttribute <ParquetColumnAttribute>();
string name = columnAttr?.Name ?? property.Name;
DataType type = handler.DataType;
var r = new DataField(name,
property.PropertyType //use CLR type here as DF constructor will figure out nullability and other parameters
);
r.ClrPropName = property.Name;
return(r);
}
private Field GetField(PropertyInfo property)
{
Type pt = property.PropertyType;
if (pt.IsNullable())
{
pt = pt.GetNonNullable();
}
if (pt.IsArray)
{
pt = pt.GetElementType();
}
IDataTypeHandler handler = DataTypeFactory.Match(pt);
if (handler == null)
{
return(null);
}
ParquetColumnAttribute columnAttr = property.GetCustomAttribute <ParquetColumnAttribute>();
string name = columnAttr?.Name ?? property.Name;
DataType type = handler.DataType;
var r = new DataField(name,
property.PropertyType //use CLR type here as DF constructor will figure out nullability and other parameters
);
if (columnAttr != null)
{
if (handler.ClrType == typeof(TimeSpan))
{
r = new TimeSpanDataField(r.Name, columnAttr.TimeSpanFormat, r.HasNulls, r.IsArray);
}
if (handler.ClrType == typeof(DateTime) || handler.ClrType == typeof(DateTimeOffset))
{
r = new DateTimeDataField(r.Name, columnAttr.DateTimeFormat, r.HasNulls, r.IsArray);
}
if (handler.ClrType == typeof(decimal))
{
r = new DecimalDataField(r.Name, columnAttr.DecimalPrecision, columnAttr.DecimalScale, columnAttr.DecimalForceByteArrayEncoding, r.HasNulls, r.IsArray);
}
}
r.ClrPropName = property.Name;
return(r);
}
