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add defaulter interface

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c9s 2022-07-19 16:59:56 +08:00
parent 808ba2fc02
commit 8af2f2f83f
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1 changed files with 11 additions and 0 deletions
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11
pkg/bbgo/trader.go
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@ -24,10 +24,15 @@ type SingleExchangeStrategy interface {
Run(ctx context.Context, orderExecutor OrderExecutor, session *ExchangeSession) error
}
// StrategyInitializer's Initialize method is called before the Subscribe method call.
type StrategyInitializer interface {
Initialize() error
}
type StrategyDefaulter interface {
Defaults() error
}
// ExchangeSessionSubscriber provides an interface for collecting subscriptions from different strategies
// Subscribe method will be called before the user data stream connection is created.
type ExchangeSessionSubscriber interface {
@ -153,6 +158,12 @@ func (trader *Trader) Subscribe() {
for sessionName, strategies := range trader.exchangeStrategies {
session := trader.environment.sessions[sessionName]
for _, strategy := range strategies {
if defaulter, ok := strategy.(StrategyDefaulter) ; ok {
if err := defaulter.Defaults(); err != nil {
panic(err)
}
}
if initializer, ok := strategy.(StrategyInitializer); ok {
if err := initializer.Initialize(); err != nil {
panic(err)