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bbgo: fix the defaults / initialize steps

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This commit is contained in:
c9s 2024-09-06 17:33:31 +08:00
parent f2a443a499
commit a282654c02
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GPG Key ID: 7385E7E464CB0A54
1 changed files with 26 additions and 19 deletions
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45
pkg/bbgo/trader.go
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@ -16,8 +16,18 @@ import (
)
// Strategy method calls:
// -> Initialize() (optional method)
// -> Defaults() (optional method)
//
// setup default static values from constants
//
// -> Initialize() (optional method)
//
// initialize dynamic runtime objects
//
// -> Subscribe()
//
// register the subscriptions
//
// -> Validate() (optional method)
// -> Run() (optional method)
// -> Shutdown(shutdownCtx context.Context, wg *sync.WaitGroup)
@ -171,12 +181,6 @@ func (trader *Trader) SetRiskControls(riskControls *RiskControls) {
func (trader *Trader) RunSingleExchangeStrategy(
ctx context.Context, strategy SingleExchangeStrategy, session *ExchangeSession, orderExecutor OrderExecutor,
) error {
if v, ok := strategy.(StrategyValidator); ok {
if err := v.Validate(); err != nil {
return fmt.Errorf("failed to validate the config: %w", err)
}
}
if shutdown, ok := strategy.(StrategyShutdown); ok {
trader.gracefulShutdown.OnShutdown(shutdown.Shutdown)
}
@ -238,12 +242,6 @@ func (trader *Trader) injectFieldsAndSubscribe(ctx context.Context) error {
return err
}
if defaulter, ok := strategy.(StrategyDefaulter); ok {
if err := defaulter.Defaults(); err != nil {
panic(err)
}
}
if subscriber, ok := strategy.(ExchangeSessionSubscriber); ok {
subscriber.Subscribe(session)
} else {
@ -304,12 +302,6 @@ func (trader *Trader) injectFieldsAndSubscribe(ctx context.Context) error {
}
}
if initializer, ok := strategy.(StrategyInitializer); ok {
if err := initializer.Initialize(); err != nil {
return err
}
}
if subscriber, ok := strategy.(CrossExchangeSessionSubscriber); ok {
subscriber.CrossSubscribe(trader.environment.sessions)
} else {
@ -356,8 +348,23 @@ func (trader *Trader) Run(ctx context.Context) error {
return trader.environment.Connect(ctx)
}
// Initialize initializes the strategies, this method is called before the Run method.
// It sets the default values and validates the strategy configurations.
// And calls the Initialize method if the strategy implements the Initialize method.
func (trader *Trader) Initialize(ctx context.Context) error {
return trader.IterateStrategies(func(strategy StrategyID) error {
if defaulter, ok := strategy.(StrategyDefaulter); ok {
if err := defaulter.Defaults(); err != nil {
return err
}
}
if v, ok := strategy.(StrategyValidator); ok {
if err := v.Validate(); err != nil {
return fmt.Errorf("found invalid strategy config: %w", err)
}
}
if initializer, ok := strategy.(StrategyInitializer); ok {
return initializer.Initialize()
}