Golang vtgate.AddVtGateErrorToQueryResult函數代碼示例

// 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
}

// ExecuteEntityIds is the RPC version of vtgateservice.VTGateService method
func (vtg *VTGate) ExecuteEntityIds(ctx context.Context, query *proto.EntityIdsQuery, reply *proto.QueryResult) (err error) {
	defer vtg.server.HandlePanic(&err)
	ctx, cancel := context.WithDeadline(ctx, time.Now().Add(*rpcTimeout))
	defer cancel()
	vtgErr := vtg.server.ExecuteEntityIds(ctx, query, reply)
	vtgate.AddVtGateErrorToQueryResult(vtgErr, reply)
	if *vtgate.RPCErrorOnlyInReply {
		return nil
	}
	return vtgErr
}

// ExecuteEntityIds is the RPC version of vtgateservice.VTGateService method
func (vtg *VTGate) ExecuteEntityIds(ctx context.Context, request *proto.EntityIdsQuery, 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.ExecuteEntityIds(ctx, request, reply)
	vtgate.AddVtGateErrorToQueryResult(vtgErr, reply)
	if *vtgate.RPCErrorOnlyInReply {
		return nil
	}
	return vtgErr
}

// Execute is the RPC version of vtgateservice.VTGateService method
func (vtg *VTGate) Execute(ctx context.Context, request *proto.Query, 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.Execute(ctx,
		request.Sql,
		request.BindVariables,
		topo.TabletTypeToProto(request.TabletType),
		request.Session,
		request.NotInTransaction,
		reply)
	vtgate.AddVtGateErrorToQueryResult(vtgErr, reply)
	if *vtgate.RPCErrorOnlyInReply {
		return nil
	}
	return vtgErr
}