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;
}
}
internal static QueryProtocolOptions CreateFromQuery(
ProtocolVersion protocolVersion, Statement query, IRequestOptions requestOptions)
{
if (query == null)
{
return(Default);
}
var consistency = query.ConsistencyLevel ?? requestOptions.ConsistencyLevel;
var pageSize = query.PageSize != 0 ? query.PageSize : requestOptions.PageSize;
long?timestamp = null;
if (query.Timestamp != null)
{
timestamp = TypeSerializer.SinceUnixEpoch(query.Timestamp.Value).Ticks / 10;
}
else if (protocolVersion.SupportsTimestamp())
{
timestamp = requestOptions.TimestampGenerator.Next();
if (timestamp == long.MinValue)
{
timestamp = null;
}
}
return(new QueryProtocolOptions(
consistency,
query.QueryValues,
query.SkipMetadata,
pageSize,
query.PagingState,
requestOptions.GetSerialConsistencyLevelOrDefault(query),
timestamp,
query.Keyspace));
}
public BatchRequest(
ISerializer serializer,
IDictionary <string, byte[]> payload,
BatchStatement statement,
ConsistencyLevel consistency,
IRequestOptions requestOptions) : base(serializer, statement.IsTracing, payload)
{
if (!serializer.ProtocolVersion.SupportsBatch())
{
throw new NotSupportedException("Batch request is supported in C* >= 2.0.x");
}
if (statement.Timestamp != null && !serializer.ProtocolVersion.SupportsTimestamp())
{
throw new NotSupportedException(
"Timestamp for BATCH request is supported in Cassandra 2.1 or above.");
}
_type = statement.BatchType;
_requests = statement.Queries
.Select(q => q.CreateBatchRequest(serializer))
.ToArray();
Consistency = consistency;
if (!serializer.ProtocolVersion.SupportsBatchFlags())
{
// if flags are not supported, then the following additional parameters aren't either
return;
}
SerialConsistency = requestOptions.GetSerialConsistencyLevelOrDefault(statement);
_batchFlags |= QueryProtocolOptions.QueryFlags.WithSerialConsistency;
if (serializer.ProtocolVersion.SupportsTimestamp())
{
_timestamp = BatchRequest.GetRequestTimestamp(statement, requestOptions.TimestampGenerator);
}
if (_timestamp != null)
{
_batchFlags |= QueryProtocolOptions.QueryFlags.WithDefaultTimestamp;
}
_keyspace = statement.Keyspace;
if (serializer.ProtocolVersion.SupportsKeyspaceInRequest() && _keyspace != null)
{
_batchFlags |= QueryProtocolOptions.QueryFlags.WithKeyspace;
}
}