internal OutputRows(FrameReader reader, Guid?traceId)
{
_metadata = new RowSetMetadata(reader);
_rowLength = reader.ReadInt32();
TraceId = traceId;
RowSet = new RowSet();
ProcessRows(RowSet, reader);
}
internal virtual Row ProcessRowItem(FrameReader reader)
{
var rowValues = new object[_metadata.Columns.Length];
for (var i = 0; i < _metadata.Columns.Length; i++)
{
var c = _metadata.Columns[i];
var length = reader.ReadInt32();
if (length < 0)
{
rowValues[i] = null;
continue;
}
var buffer = GetBuffer(length, c.TypeCode);
rowValues[i] = reader.ReadFromBytes(buffer, 0, length, c.TypeCode, c.TypeInfo);
}
return(new Row(rowValues, _metadata.Columns, _metadata.ColumnIndexes));
}
internal RowSetMetadata(FrameReader reader, bool parsePartitionKeys = false)
{
if (reader == null)
{
//Allow to be created for unit tests
return;
}
var flags = (RowSetMetadataFlags)reader.ReadInt32();
var columnLength = reader.ReadInt32();
if (parsePartitionKeys)
{
PartitionKeys = new int[reader.ReadInt32()];
for (var i = 0; i < PartitionKeys.Length; i++)
{
PartitionKeys[i] = reader.ReadInt16();
}
}
string gKsname = null;
string gTablename = null;
if ((flags & RowSetMetadataFlags.HasMorePages) == RowSetMetadataFlags.HasMorePages)
{
PagingState = reader.ReadBytes();
}
if ((flags & RowSetMetadataFlags.NoMetadata) == RowSetMetadataFlags.NoMetadata)
{
return;
}
if ((flags & RowSetMetadataFlags.GlobalTablesSpec) == RowSetMetadataFlags.GlobalTablesSpec)
{
gKsname = reader.ReadString();
gTablename = reader.ReadString();
}
Columns = new CqlColumn[columnLength];
ColumnIndexes = new Dictionary <string, int>(columnLength);
for (var i = 0; i < columnLength; i++)
{
var col = new CqlColumn {
Index = i
};
if ((flags & RowSetMetadataFlags.GlobalTablesSpec) == 0)
{
col.Keyspace = reader.ReadString();
col.Table = reader.ReadString();
}
else
{
col.Keyspace = gKsname;
col.Table = gTablename;
}
col.Name = reader.ReadString();
col.TypeCode = (ColumnTypeCode)reader.ReadUInt16();
col.TypeInfo = GetColumnInfo(reader, col.TypeCode);
col.Type = reader.Serializer.GetClrType(col.TypeCode, col.TypeInfo);
Columns[i] = col;
ColumnIndexes[col.Name] = i;
}
Keyspace = gKsname ?? (columnLength > 0 ? Columns[0].Keyspace : null);
}