servicediscovery

type ServerInfo struct {
	ID             string   `json:"id,omitempty"`
	Type           string   `json:"type,omitempty"`
	Addr           string   `json:"addr,omitempty"`
	ClientHandlers []string `json:"client_handlers,omitempty"`
	ServerHandlers []string `json:"server_handlers,omitempty"`
}

type ServerWatcher interface {
	OnAddServer(serverInfo *ServerInfo)
	OnRemoveServer(serverInfo *ServerInfo)
}

type ServiceDiscovery interface {
	Start() error
	GetRandomServer(serverType string) (*ServerInfo, bool)
	GetServer(serverID string) (*ServerInfo, bool)
	AddServerWatcher(watcher ServerWatcher)
	Close() error
}