// SplitQueryPartsToproto transforms a SplitQueryResponse into proto
func SplitQueryPartsToProto(sqp []SplitQueryPart) *pb.SplitQueryResponse {
result := &pb.SplitQueryResponse{}
if len(sqp) == 0 {
return result
}
result.Splits = make([]*pb.SplitQueryResponse_Part, len(sqp))
for i, split := range sqp {
result.Splits[i] = &pb.SplitQueryResponse_Part{
Size: split.Size,
}
if split.Query != nil {
result.Splits[i].Query = tproto.BoundQueryToProto3(split.Query.Sql, split.Query.BindVariables)
result.Splits[i].KeyRangePart = &pb.SplitQueryResponse_KeyRangePart{
Keyspace: split.Query.Keyspace,
KeyRanges: key.KeyRangesToProto(split.Query.KeyRanges),
}
}
if split.QueryShard != nil {
result.Splits[i].Query = tproto.BoundQueryToProto3(split.QueryShard.Sql, split.QueryShard.BindVariables)
result.Splits[i].ShardPart = &pb.SplitQueryResponse_ShardPart{
Keyspace: split.QueryShard.Keyspace,
Shards: split.QueryShard.Shards,
}
}
}
return result
}
// StreamExecuteKeyRanges2 is the RPC version of
// vtgateservice.VTGateService method
func (vtg *VTGate) StreamExecuteKeyRanges2(ctx context.Context, request *proto.KeyRangeQuery, sendReply func(interface{}) error) (err error) {
defer vtg.server.HandlePanic(&err)
ctx = callerid.NewContext(ctx,
callerid.GoRPCEffectiveCallerID(request.CallerID),
callerid.NewImmediateCallerID("gorpc client"))
vtgErr := vtg.server.StreamExecuteKeyRanges(ctx,
request.Sql,
request.BindVariables,
request.Keyspace,
key.KeyRangesToProto(request.KeyRanges),
topo.TabletTypeToProto(request.TabletType),
func(value *proto.QueryResult) error {
return sendReply(value)
})
if vtgErr == nil {
return nil
}
if *vtgate.RPCErrorOnlyInReply {
// If there was an app error, send a QueryResult back with it.
qr := new(proto.QueryResult)
vtgate.AddVtGateErrorToQueryResult(vtgErr, qr)
// Sending back errors this way is not backwards compatible. If a (new) server sends an additional
// QueryResult with an error, and the (old) client doesn't know how to read it, it will cause
// problems where the client will get out of sync with the number of QueryResults sent.
// That's why this the error is only sent this way when the --rpc_errors_only_in_reply flag is set
// (signalling that all clients are able to handle new-style errors).
return sendReply(qr)
}
return vtgErr
}
func (conn *vtgateConn) StreamExecuteKeyRanges(ctx context.Context, query string, keyspace string, keyRanges []key.KeyRange, bindVars map[string]interface{}, tabletType topo.TabletType) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
req := &pb.StreamExecuteKeyRangesRequest{
Query: tproto.BoundQueryToProto3(query, bindVars),
Keyspace: keyspace,
KeyRanges: key.KeyRangesToProto(keyRanges),
TabletType: topo.TabletTypeToProto(tabletType),
}
stream, err := conn.c.StreamExecuteKeyRanges(ctx, req)
if err != nil {
return nil, nil, err
}
sr := make(chan *mproto.QueryResult, 10)
var finalError error
go func() {
for {
ser, err := stream.Recv()
if err != nil {
if err != io.EOF {
finalError = err
}
close(sr)
return
}
if ser.Error != nil {
finalError = vterrors.FromVtRPCError(ser.Error)
close(sr)
return
}
sr <- mproto.Proto3ToQueryResult(ser.Result)
}
}()
return sr, func() error {
return finalError
}, nil
}
// StreamExecuteKeyRanges is the RPC version of
// vtgateservice.VTGateService method
func (vtg *VTGate) StreamExecuteKeyRanges(ctx context.Context, request *proto.KeyRangeQuery, sendReply func(interface{}) error) (err error) {
defer vtg.server.HandlePanic(&err)
ctx = callerid.NewContext(ctx,
callerid.GoRPCEffectiveCallerID(request.CallerID),
callerid.NewImmediateCallerID("gorpc client"))
return vtg.server.StreamExecuteKeyRanges(ctx,
request.Sql,
request.BindVariables,
request.Keyspace,
key.KeyRangesToProto(request.KeyRanges),
topo.TabletTypeToProto(request.TabletType),
func(value *proto.QueryResult) error {
return sendReply(value)
})
}
// ExecuteKeyRanges is the RPC version of vtgateservice.VTGateService method
func (vtg *VTGate) ExecuteKeyRanges(ctx context.Context, request *proto.KeyRangeQuery, reply *proto.QueryResult) (err error) {
defer vtg.server.HandlePanic(&err)
ctx, cancel := context.WithDeadline(ctx, time.Now().Add(*rpcTimeout))
defer cancel()
ctx = callerid.NewContext(ctx,
callerid.GoRPCEffectiveCallerID(request.CallerID),
callerid.NewImmediateCallerID("gorpc client"))
vtgErr := vtg.server.ExecuteKeyRanges(ctx,
request.Sql,
request.BindVariables,
request.Keyspace,
key.KeyRangesToProto(request.KeyRanges),
topo.TabletTypeToProto(request.TabletType),
request.Session,
request.NotInTransaction,
reply)
vtgate.AddVtGateError(vtgErr, &reply.Err)
return nil
}
func (conn *vtgateConn) ExecuteKeyRanges(ctx context.Context, query string, keyspace string, keyRanges []key.KeyRange, bindVars map[string]interface{}, tabletType topo.TabletType, notInTransaction bool, session interface{}) (*mproto.QueryResult, interface{}, error) {
var s *pb.Session
if session != nil {
s = session.(*pb.Session)
}
request := &pb.ExecuteKeyRangesRequest{
Session: s,
Query: tproto.BoundQueryToProto3(query, bindVars),
Keyspace: keyspace,
KeyRanges: key.KeyRangesToProto(keyRanges),
TabletType: topo.TabletTypeToProto(tabletType),
NotInTransaction: notInTransaction,
}
response, err := conn.c.ExecuteKeyRanges(ctx, request)
if err != nil {
return nil, session, err
}
if response.Error != nil {
return nil, response.Session, vterrors.FromVtRPCError(response.Error)
}
return mproto.Proto3ToQueryResult(response.Result), response.Session, nil
}
// StreamExecuteKeyRanges2 is the RPC version of
// vtgateservice.VTGateService method
func (vtg *VTGate) StreamExecuteKeyRanges2(ctx context.Context, request *proto.KeyRangeQuery, sendReply func(interface{}) error) (err error) {
defer vtg.server.HandlePanic(&err)
ctx = callerid.NewContext(ctx,
callerid.GoRPCEffectiveCallerID(request.CallerID),
callerid.NewImmediateCallerID("gorpc client"))
vtgErr := vtg.server.StreamExecuteKeyRanges(ctx,
request.Sql,
request.BindVariables,
request.Keyspace,
key.KeyRangesToProto(request.KeyRanges),
topo.TabletTypeToProto(request.TabletType),
func(value *proto.QueryResult) error {
return sendReply(value)
})
if vtgErr == nil {
return nil
}
// If there was an app error, send a QueryResult back with it.
qr := new(proto.QueryResult)
vtgate.AddVtGateError(vtgErr, &qr.Err)
return sendReply(qr)
}