Function chain

code/handlers/handler.go:19–26

责任链

(data *ActionInfo, actions ...Action)

// 责任链
func chain(data *ActionInfo, actions ...Action) bool {
	for _, v := range actions {
		if !v.Execute(data) {
			return false
		}
	}
	return true
}

type MessageHandler struct {
	sessionCache services.SessionServiceCacheInterface