6337c92cd0
* selector: implement new selector interface plus random & roundrobin implementations * selector/roundrobin: remove unused consts * router: add close method to interface * selector/roundrobin: fix concurrent map iteration and map write * selector: replace variadic argument on Select
43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
package selector
|
|
|
|
import (
|
|
"errors"
|
|
|
|
"github.com/micro/go-micro/v2/router"
|
|
)
|
|
|
|
var (
|
|
// DefaultSelector is the default selector
|
|
DefaultSelector = NewSelector()
|
|
|
|
// ErrNoneAvailable is returned by select when no routes were provided to select from
|
|
ErrNoneAvailable = errors.New("none available")
|
|
)
|
|
|
|
// Selector selects a route from a pool
|
|
type Selector interface {
|
|
// Init a selector with options
|
|
Init(...Option) error
|
|
// Options the selector is using
|
|
Options() Options
|
|
// Select a route from the pool using the strategy
|
|
Select([]*router.Route) (*router.Route, error)
|
|
// Record the error returned from a route to inform future selection
|
|
Record(*router.Route, error) error
|
|
// Close the selector
|
|
Close() error
|
|
// String returns the name of the selector
|
|
String() string
|
|
}
|
|
|
|
// Options used to configure a selector
|
|
type Options struct{}
|
|
|
|
// Option updates the options
|
|
type Option func(*Options)
|
|
|
|
// NewSelector creates new selector and returns it
|
|
func NewSelector(opts ...Option) Selector {
|
|
return newSelector(opts...)
|
|
}
|