public IClickHouseColumnWriter Dispatch(string columnName, object rows, ClickHouseColumnSettings?columnSettings, IClickHouseColumnTypeInfo underlyingTypeInfo)
{
var genericList = (IReadOnlyList <TValue?>)rows;
var listWrapper = new MappedReadOnlyList <TValue?, TValue>(genericList, item => item ?? default);
return(underlyingTypeInfo.CreateColumnWriter(columnName, listWrapper, columnSettings));
}
public IClickHouseColumnWriter Dispatch <T>()
{
var linearizedList = new ArrayLinearizedList <T>((IReadOnlyList <IReadOnlyList <T>?>)_rows);
var elementColumnWriter = _elementTypeInfo.CreateColumnWriter(_columnName, linearizedList, _columnSettings);
return(new ArrayColumnWriter <T>(_columnType, linearizedList, elementColumnWriter));
}
public IClickHouseColumnWriter Dispatch <T>()
{
var mappedRows = new MappedReadOnlyList <Array, IReadOnlyList <T> >(_rows, arr => (IReadOnlyList <T>)_dispatchArray(arr));
var linearizedList = new ArrayLinearizedList <T>(mappedRows);
var elementColumnWriter = _elementTypeInfo.CreateColumnWriter(_columnName, linearizedList, _columnSettings);
return(new ArrayColumnWriter <T>(_columnType, linearizedList, elementColumnWriter));
}
public NullableColumnWriter(string columnName, string columnType, IReadOnlyList <T> rows, ClickHouseColumnSettings?columnSettings, IClickHouseColumnTypeInfo underlyingTypeInfo)
{
if (underlyingTypeInfo == null)
{
throw new ArgumentNullException(nameof(underlyingTypeInfo));
}
_rows = rows ?? throw new ArgumentNullException(nameof(rows));
ColumnName = columnName ?? throw new ArgumentNullException(nameof(columnName));
ColumnType = columnType ?? throw new ArgumentNullException(nameof(columnType));
if (typeof(T).IsValueType && typeof(T).IsGenericType && typeof(T).GetGenericTypeDefinition() == typeof(Nullable <>))
{
var valueType = typeof(T).GetGenericArguments()[0];
var dispatcherType = typeof(ValueOrDefaultListDispatcher <>).MakeGenericType(valueType);
var columnDispatcher = (IValueOrDefaultListDispatcherBase)Activator.CreateInstance(dispatcherType) !;
_internalColumnWriter = columnDispatcher.Dispatch(columnName, rows, columnSettings, underlyingTypeInfo);
}
else
{
_internalColumnWriter = underlyingTypeInfo.CreateColumnWriter(columnName, rows, columnSettings);
}
}
