func (conn *vtgateConn) StreamExecuteKeyspaceIds(ctx context.Context, query string, keyspace string, keyspaceIds [][]byte, bindVars map[string]interface{}, tabletType pbt.TabletType) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
req := &pb.StreamExecuteKeyspaceIdsRequest{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
Query: tproto.BoundQueryToProto3(query, bindVars),
Keyspace: keyspace,
KeyspaceIds: keyspaceIds,
TabletType: tabletType,
}
stream, err := conn.c.StreamExecuteKeyspaceIds(ctx, req)
if err != nil {
return nil, nil, vterrors.FromGRPCError(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 = vterrors.FromGRPCError(err)
}
close(sr)
return
}
sr <- mproto.Proto3ToQueryResult(ser.Result)
}
}()
return sr, func() error {
return finalError
}, nil
}
func sendStreamResults(c *rpcplus.Call, sr chan streamResult) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
srout := make(chan *mproto.QueryResult, 1)
var err error
go func() {
defer close(srout)
for r := range sr {
// nil != nil
vtErr := vterrors.FromVtRPCError(r.err)
if vtErr != nil {
err = vtErr
continue
}
// If we get a QueryResult with an RPCError, that was an extra QueryResult sent by
// the server specifically to indicate an error, and we shouldn't surface it to clients.
srout <- mproto.Proto3ToQueryResult(r.qr)
}
}()
// errFunc will return either an RPC-layer error or an application error, if one exists.
// It will only return the most recent application error (i.e, from the QueryResult that
// most recently contained an error). It will prioritize an RPC-layer error over an apperror,
// if both exist.
errFunc := func() error {
if c.Error != nil {
return c.Error
}
return err
}
return srout, errFunc, nil
}
func (conn *vtgateConn) StreamExecute(ctx context.Context, query string, bindVars map[string]interface{}, tabletType pbt.TabletType) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
req := &pb.StreamExecuteRequest{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
Query: tproto.BoundQueryToProto3(query, bindVars),
TabletType: tabletType,
}
stream, err := conn.c.StreamExecute(ctx, req)
if err != nil {
return nil, nil, vterrors.FromGRPCError(err)
}
sr := make(chan *mproto.QueryResult, 10)
// TODO(aaijazi): I'm pretty sure ther error handling going on down here is overkill now...
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
}
func (conn *vtgateConn) ExecuteShards(ctx context.Context, query string, keyspace string, shards []string, bindVars map[string]interface{}, tabletType pbt.TabletType, notInTransaction bool, session interface{}) (*mproto.QueryResult, interface{}, error) {
var s *pb.Session
if session != nil {
s = session.(*pb.Session)
}
q, err := tproto.BoundQueryToProto3(query, bindVars)
if err != nil {
return nil, session, err
}
request := &pb.ExecuteShardsRequest{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
Session: s,
Query: q,
Keyspace: keyspace,
Shards: shards,
TabletType: tabletType,
NotInTransaction: notInTransaction,
}
response, err := conn.c.ExecuteShards(ctx, request)
if err != nil {
return nil, session, vterrors.FromGRPCError(err)
}
if response.Error != nil {
return nil, response.Session, vterrors.FromVtRPCError(response.Error)
}
return mproto.Proto3ToQueryResult(response.Result), response.Session, nil
}
func (conn *vtgateConn) StreamExecuteKeyspaceIds(ctx context.Context, query string, keyspace string, keyspaceIds []key.KeyspaceId, bindVars map[string]interface{}, tabletType topo.TabletType) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
req := &pb.StreamExecuteKeyspaceIdsRequest{
Query: tproto.BoundQueryToProto3(query, bindVars),
Keyspace: keyspace,
KeyspaceIds: key.KeyspaceIdsToProto(keyspaceIds),
TabletType: topo.TabletTypeToProto(tabletType),
}
stream, err := conn.c.StreamExecuteKeyspaceIds(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
}
func sendStreamResults(c *rpcplus.Call, sr chan *qpb.QueryResult) (<-chan *mproto.QueryResult, vtgateconn.ErrFunc, error) {
srout := make(chan *mproto.QueryResult, 1)
go func() {
defer close(srout)
for r := range sr {
srout <- mproto.Proto3ToQueryResult(r)
}
}()
errFunc := func() error {
return vterrors.FromJSONError(c.Error)
}
return srout, errFunc, nil
}
// ExecuteFetchAsApp is part of the tmclient.TabletManagerClient interface
func (client *Client) ExecuteFetchAsApp(ctx context.Context, tablet *topo.TabletInfo, query string, maxRows int, wantFields bool) (*mproto.QueryResult, error) {
cc, c, err := client.dial(ctx, tablet)
if err != nil {
return nil, err
}
defer cc.Close()
response, err := c.ExecuteFetchAsApp(ctx, &pb.ExecuteFetchAsAppRequest{
Query: query,
MaxRows: uint64(maxRows),
WantFields: wantFields,
})
if err != nil {
return nil, err
}
return mproto.Proto3ToQueryResult(response.Result), nil
}
// ExecuteFetchAsDba is part of the tmclient.TabletManagerClient interface
func (client *Client) ExecuteFetchAsDba(ctx context.Context, tablet *topo.TabletInfo, query string, maxRows int, wantFields, disableBinlogs, reloadSchema bool) (*mproto.QueryResult, error) {
cc, c, err := client.dial(ctx, tablet)
if err != nil {
return nil, err
}
defer cc.Close()
response, err := c.ExecuteFetchAsDba(ctx, &pb.ExecuteFetchAsDbaRequest{
Query: query,
DbName: tablet.DbName(),
MaxRows: uint64(maxRows),
WantFields: wantFields,
DisableBinlogs: disableBinlogs,
ReloadSchema: reloadSchema,
})
if err != nil {
return nil, err
}
return mproto.Proto3ToQueryResult(response.Result), nil
}
func (conn *vtgateConn) Execute(ctx context.Context, query string, 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.ExecuteRequest{
Session: s,
Query: tproto.BoundQueryToProto3(query, bindVars),
TabletType: topo.TabletTypeToProto(tabletType),
NotInTransaction: notInTransaction,
}
response, err := conn.c.Execute(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
}
// Execute sends the query to VTTablet.
func (conn *gRPCQueryClient) Execute(ctx context.Context, query string, bindVars map[string]interface{}, transactionID int64) (*mproto.QueryResult, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
req := &pb.ExecuteRequest{
Query: tproto.BoundQueryToProto3(query, bindVars),
TransactionId: transactionID,
SessionId: conn.sessionID,
}
er, err := conn.c.Execute(ctx, req)
if err != nil {
return nil, tabletErrorFromGRPC(err)
}
if er.Error != nil {
return nil, tabletErrorFromRPCError(er.Error)
}
return mproto.Proto3ToQueryResult(er.Result), nil
}
func (conn *vtgateConn) Execute(ctx context.Context, query string, bindVars map[string]interface{}, tabletType topopb.TabletType, notInTransaction bool, session interface{}) (*mproto.QueryResult, interface{}, error) {
var s *pb.Session
if session != nil {
s = session.(*pb.Session)
}
request := &pb.ExecuteRequest{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
Query: tproto.BoundQueryToProto3(query, bindVars),
TabletType: tabletType,
Session: s,
NotInTransaction: notInTransaction,
}
response := &pb.ExecuteResponse{}
if err := conn.rpcConn.Call(ctx, "VTGateP3.Execute", request, response); err != nil {
return nil, response.Session, err
}
if err := vterrors.FromVtRPCError(response.Error); err != nil {
return nil, response.Session, err
}
return mproto.Proto3ToQueryResult(response.Result), response.Session, nil
}
// StreamExecute starts a streaming query to VTTablet.
func (conn *gRPCQueryClient) StreamExecute(ctx context.Context, query string, bindVars map[string]interface{}, transactionID int64) (<-chan *mproto.QueryResult, tabletconn.ErrFunc, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, nil, tabletconn.ConnClosed
}
req := &pb.StreamExecuteRequest{
Query: tproto.BoundQueryToProto3(query, bindVars),
SessionId: conn.sessionID,
}
stream, err := conn.c.StreamExecute(ctx, req)
if err != nil {
return nil, nil, tabletErrorFromGRPC(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 = tabletErrorFromGRPC(err)
}
close(sr)
return
}
if ser.Error != nil {
finalError = tabletErrorFromRPCError(ser.Error)
close(sr)
return
}
sr <- mproto.Proto3ToQueryResult(ser.Result)
}
}()
return sr, func() error {
return finalError
}, 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{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
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
}
func (conn *vtgateConn) ExecuteEntityIds(ctx context.Context, query string, keyspace string, entityColumnName string, entityKeyspaceIDs []*pb.ExecuteEntityIdsRequest_EntityId, bindVars map[string]interface{}, tabletType topopb.TabletType, notInTransaction bool, session interface{}) (*mproto.QueryResult, interface{}, error) {
var s *pb.Session
if session != nil {
s = session.(*pb.Session)
}
request := &pb.ExecuteEntityIdsRequest{
CallerId: callerid.EffectiveCallerIDFromContext(ctx),
Session: s,
Query: tproto.BoundQueryToProto3(query, bindVars),
Keyspace: keyspace,
EntityColumnName: entityColumnName,
EntityKeyspaceIds: entityKeyspaceIDs,
TabletType: tabletType,
NotInTransaction: notInTransaction,
}
response := &pb.ExecuteEntityIdsResponse{}
if err := conn.rpcConn.Call(ctx, "VTGateP3.ExecuteEntityIds", request, response); err != nil {
return nil, session, vterrors.FromJSONError(err)
}
if response.Error != nil {
return nil, response.Session, vterrors.FromVtRPCError(response.Error)
}
return mproto.Proto3ToQueryResult(response.Result), response.Session, nil
}