loadbalance

type BalancerFactory struct {
	// contains filtered or unexported fields
}

type Config struct {
	Resolver discovery.Resolver
	Balancer Loadbalancer
	LbOpts   Options
}

type Loadbalancer interface {
	// Pick is used to select an instance according to discovery result
	Pick(discovery.Result) discovery.Instance

	// Rebalance is used to refresh the cache of load balance's information
	Rebalance(discovery.Result)

	// Delete is used to delete the cache of load balance's information when it is expired
	Delete(string)

	// Name returns the name of the Loadbalancer.
	Name() string
}

type Options struct {
	// refresh discovery result timely
	RefreshInterval time.Duration

	// Balancer expire check interval
	// we need remove idle Balancers for resource saving
	ExpireInterval time.Duration
}