bbgo_origin/pkg/bbgo/risk_controls.go
2020-11-12 17:30:21 +08:00

75 lines
2.0 KiB
Go

package bbgo
import (
"context"
"github.com/sirupsen/logrus"
"github.com/c9s/bbgo/pkg/types"
)
type SymbolBasedRiskController struct {
BasicRiskController *BasicRiskController `json:"basic,omitempty" yaml:"basic,omitempty"`
}
type RiskControlOrderExecutor struct {
*ExchangeOrderExecutor
// Symbol => Executor config
BySymbol map[string]*SymbolBasedRiskController `json:"bySymbol,omitempty" yaml:"bySymbol,omitempty"`
}
func (e *RiskControlOrderExecutor) SubmitOrders(ctx context.Context, orders ...types.SubmitOrder) (retOrders types.OrderSlice, err error) {
var symbolOrders = groupSubmitOrdersBySymbol(orders)
for symbol, orders := range symbolOrders {
if controller, ok := e.BySymbol[symbol]; ok && controller != nil {
var riskErrs []error
orders, riskErrs = controller.BasicRiskController.ProcessOrders(e.session, orders...)
for _, riskErr := range riskErrs {
// use logger from ExchangeOrderExecutor
logrus.Warnf("RISK ERROR: %s", riskErr.Error())
}
}
formattedOrders, err := formatOrders(e.session, orders)
if err != nil {
return retOrders, err
}
retOrders2, err := e.ExchangeOrderExecutor.SubmitOrders(ctx, formattedOrders...)
if err != nil {
return retOrders, err
}
retOrders = append(retOrders, retOrders2...)
}
return
}
type SessionBasedRiskControl struct {
OrderExecutor *RiskControlOrderExecutor `json:"orderExecutor,omitempty" yaml:"orderExecutor"`
}
func (control *SessionBasedRiskControl) SetBaseOrderExecutor(executor *ExchangeOrderExecutor) {
if control.OrderExecutor == nil {
return
}
control.OrderExecutor.ExchangeOrderExecutor = executor
}
func groupSubmitOrdersBySymbol(orders []types.SubmitOrder) map[string][]types.SubmitOrder {
var symbolOrders = make(map[string][]types.SubmitOrder, len(orders))
for _, order := range orders {
symbolOrders[order.Symbol] = append(symbolOrders[order.Symbol], order)
}
return symbolOrders
}
type RiskControls struct {
SessionBasedRiskControl map[string]*SessionBasedRiskControl `json:"sessionBased,omitempty" yaml:"sessionBased,omitempty"`
}