Move selector to client/selector

selector/selector.go

@@ -1,42 +0,0 @@
-// Package selector is a way to pick a list of service nodes
-package selector
-
-import (
-	"errors"
-	"github.com/micro/go-micro/registry"
-)
-
-// Selector builds on the registry as a mechanism to pick nodes
-// and mark their status. This allows host pools and other things
-// to be built using various algorithms.
-type Selector interface {
-	Init(opts ...Option) error
-	Options() Options
-	// Select returns a function which should return the next node
-	Select(service string, opts ...SelectOption) (Next, error)
-	// Mark sets the success/error against a node
-	Mark(service string, node *registry.Node, err error)
-	// Reset returns state back to zero for a service
-	Reset(service string)
-	// Close renders the selector unusable
-	Close() error
-	// Name of the selector
-	String() string
-}
-
-// Next is a function that returns the next node
-// based on the selector's strategy
-type Next func() (*registry.Node, error)
-
-// Filter is used to filter a service during the selection process
-type Filter func([]*registry.Service) []*registry.Service
-
-// Strategy is a selection strategy e.g random, round robin
-type Strategy func([]*registry.Service) Next
-
-var (
-	DefaultSelector = NewSelector()
-
-	ErrNotFound      = errors.New("not found")
-	ErrNoneAvailable = errors.New("none available")
-)