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Code Issues Actions 2 Packages Projects Releases Wiki Activity

feature: split strategy controller interface into several smaller ones

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This commit is contained in:
Andy Cheng 2022-04-21 16:55:58 +08:00
parent 389752161d
commit ecc63f743f
2 changed files with 28 additions and 30 deletions
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49
pkg/bbgo/interact.go
View File

@ -56,15 +56,6 @@ func (it *CoreInteraction) FilterStrategyByInterface(checkInterface interface{})
return strategies, found
}
func (it *CoreInteraction) GetStrategyController(strategy SingleExchangeStrategy) (controller StrategyControllerInterface, found bool) {
if strategyController := reflect.ValueOf(&strategy).Elem().FieldByName("strategyController"); strategyController.IsValid() {
controller = strategyController.Interface().(StrategyControllerInterface)
return controller, true
} else {
return nil, false
}
}
func GenerateStrategyButtonsForm(strategies []string) [][3]string {
var buttonsForm [][3]string
for _, strategy := range strategies {
@ -231,11 +222,11 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
i.PrivateCommand("/status", "Strategy Status", func(reply interact.Reply) error {
// it.trader.exchangeStrategies
// send symbol options
if strategies, found := it.FilterStrategyByInterface((*StrategyControllerInterface)(nil)); found {
if strategies, found := it.FilterStrategyByInterface((*StrategyStatusReader)(nil)); found {
reply.AddMultipleButtons(GenerateStrategyButtonsForm(strategies))
reply.Message("Please choose a strategy")
} else {
reply.Message("No strategy supports StrategyController")
reply.Message("No strategy supports StrategyStatusReader")
}
return nil
}).Next(func(signature string, reply interact.Reply) error {
@ -245,10 +236,10 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
return fmt.Errorf("strategy %s not found", signature)
}
controller, implemented := strategy.(StrategyControllerInterface)
controller, implemented := strategy.(StrategyStatusReader)
if !implemented {
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyController", signature))
return fmt.Errorf("strategy %s does not implement StrategyController", signature)
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyStatusReader", signature))
return fmt.Errorf("strategy %s does not implement StrategyStatusReader", signature)
}
status := controller.GetStatus()
@ -269,11 +260,11 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
i.PrivateCommand("/suspend", "Suspend Strategy", func(reply interact.Reply) error {
// it.trader.exchangeStrategies
// send symbol options
if strategies, found := it.FilterStrategyByInterface((*StrategyControllerInterface)(nil)); found {
if strategies, found := it.FilterStrategyByInterface((*StrategyToggler)(nil)); found {
reply.AddMultipleButtons(GenerateStrategyButtonsForm(strategies))
reply.Message("Please choose one strategy")
} else {
reply.Message("No strategy supports StrategyController")
reply.Message("No strategy supports StrategyToggler")
}
return nil
}).Next(func(signature string, reply interact.Reply) error {
@ -283,10 +274,10 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
return fmt.Errorf("strategy %s not found", signature)
}
controller, implemented := strategy.(StrategyControllerInterface)
controller, implemented := strategy.(StrategyToggler)
if !implemented {
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyController", signature))
return fmt.Errorf("strategy %s does not implement StrategyController", signature)
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyToggler", signature))
return fmt.Errorf("strategy %s does not implement StrategyToggler", signature)
}
// Check strategy status before suspend
@ -311,11 +302,11 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
i.PrivateCommand("/resume", "Resume Strategy", func(reply interact.Reply) error {
// it.trader.exchangeStrategies
// send symbol options
if strategies, found := it.FilterStrategyByInterface((*StrategyControllerInterface)(nil)); found {
if strategies, found := it.FilterStrategyByInterface((*StrategyToggler)(nil)); found {
reply.AddMultipleButtons(GenerateStrategyButtonsForm(strategies))
reply.Message("Please choose one strategy")
} else {
reply.Message("No strategy supports StrategyController")
reply.Message("No strategy supports StrategyToggler")
}
return nil
}).Next(func(signature string, reply interact.Reply) error {
@ -325,10 +316,10 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
return fmt.Errorf("strategy %s not found", signature)
}
controller, implemented := strategy.(StrategyControllerInterface)
controller, implemented := strategy.(StrategyToggler)
if !implemented {
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyController", signature))
return fmt.Errorf("strategy %s does not implement StrategyController", signature)
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyToggler", signature))
return fmt.Errorf("strategy %s does not implement StrategyToggler", signature)
}
// Check strategy status before suspend
@ -353,11 +344,11 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
i.PrivateCommand("/emergencystop", "Emergency Stop", func(reply interact.Reply) error {
// it.trader.exchangeStrategies
// send symbol options
if strategies, found := it.FilterStrategyByInterface((*StrategyControllerInterface)(nil)); found {
if strategies, found := it.FilterStrategyByInterface((*EmergencyStopper)(nil)); found {
reply.AddMultipleButtons(GenerateStrategyButtonsForm(strategies))
reply.Message("Please choose one strategy")
} else {
reply.Message("No strategy supports StrategyController")
reply.Message("No strategy supports EmergencyStopper")
}
return nil
}).Next(func(signature string, reply interact.Reply) error {
@ -367,10 +358,10 @@ func (it *CoreInteraction) Commands(i *interact.Interact) {
return fmt.Errorf("strategy %s not found", signature)
}
controller, implemented := strategy.(StrategyControllerInterface)
controller, implemented := strategy.(EmergencyStopper)
if !implemented {
reply.Message(fmt.Sprintf("Strategy %s does not support StrategyController", signature))
return fmt.Errorf("strategy %s does not implement StrategyController", signature)
reply.Message(fmt.Sprintf("Strategy %s does not support EmergencyStopper", signature))
return fmt.Errorf("strategy %s does not implement EmergencyStopper", signature)
}
if kc, ok := reply.(interact.KeyboardController); ok {

9
pkg/bbgo/strategy_controller.go
View File

@ -71,9 +71,16 @@ func (s *StrategyController) EmitEmergencyStop() error {
}
}
type StrategyControllerInterface interface {
type StrategyStatusReader interface {
GetStatus() types.StrategyStatus
}
type StrategyToggler interface {
StrategyStatusReader
Suspend() error
Resume() error
}
type EmergencyStopper interface {
EmergencyStop() error
}