public BatchRequest(ProtocolVersion protocolVersion, BatchStatement statement, ConsistencyLevel consistency, IRequestOptions requestOptions)
{
if (!protocolVersion.SupportsBatch())
{
throw new NotSupportedException("Batch request is supported in C* >= 2.0.x");
}
_type = statement.BatchType;
_requests = statement.Queries
.Select(q => q.CreateBatchRequest(protocolVersion))
.ToArray();
Consistency = consistency;
if (statement.IsTracing)
{
_headerFlags = FrameHeader.HeaderFlag.Tracing;
}
SerialConsistency = requestOptions.GetSerialConsistencyLevelOrDefault(statement);
_batchFlags |= QueryProtocolOptions.QueryFlags.WithSerialConsistency;
_timestamp = BatchRequest.GetRequestTimestamp(protocolVersion, statement, requestOptions.TimestampGenerator);
if (_timestamp != null)
{
_batchFlags |= QueryProtocolOptions.QueryFlags.WithDefaultTimestamp;
}
if (protocolVersion.SupportsKeyspaceInRequest() && statement.Keyspace != null)
{
_batchFlags |= QueryProtocolOptions.QueryFlags.WithKeyspace;
_keyspace = statement.Keyspace;
}
}
private QueryFlags GetFlags(ProtocolVersion protocolVersion, bool isPrepared)
{
QueryFlags flags = 0;
if (Values != null && Values.Length > 0)
{
flags |= QueryFlags.Values;
}
if (_skipMetadata)
{
flags |= QueryFlags.SkipMetadata;
}
if (PageSize != int.MaxValue && PageSize >= 0)
{
flags |= QueryFlags.PageSize;
}
if (PagingState != null)
{
flags |= QueryFlags.WithPagingState;
}
if (SerialConsistency != ConsistencyLevel.Any)
{
flags |= QueryFlags.WithSerialConsistency;
}
if (protocolVersion.SupportsTimestamp() && RawTimestamp != null)
{
flags |= QueryFlags.WithDefaultTimestamp;
}
if (ValueNames != null && ValueNames.Count > 0)
{
flags |= QueryFlags.WithNameForValues;
}
if (!isPrepared && protocolVersion.SupportsKeyspaceInRequest() && _keyspace != null)
{
// Providing keyspace is only useful for QUERY requests.
// For EXECUTE requests, the keyspace will be the one from the prepared statement.
flags |= QueryFlags.WithKeyspace;
}
return(flags);
}