88 lines
1.4 KiB
Go
88 lines
1.4 KiB
Go
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package selector
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import (
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"math/rand"
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"time"
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"github.com/micro/go-micro/registry"
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)
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type defaultSelector struct {
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so Options
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}
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func init() {
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rand.Seed(time.Now().Unix())
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}
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func (r *defaultSelector) Init(opts ...Option) error {
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for _, o := range opts {
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o(&r.so)
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}
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return nil
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}
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func (r *defaultSelector) Options() Options {
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return r.so
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}
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func (r *defaultSelector) Select(service string, opts ...SelectOption) (Next, error) {
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sopts := SelectOptions{
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Strategy: r.so.Strategy,
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}
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for _, opt := range opts {
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opt(&sopts)
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}
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// get the service
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services, err := r.so.Registry.GetService(service)
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if err != nil {
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return nil, err
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}
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// apply the filters
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for _, filter := range sopts.Filters {
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services = filter(services)
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}
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// if there's nothing left, return
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if len(services) == 0 {
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return nil, ErrNotFound
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}
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return sopts.Strategy(services), nil
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}
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func (r *defaultSelector) Mark(service string, node *registry.Node, err error) {
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return
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}
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func (r *defaultSelector) Reset(service string) {
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return
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}
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func (r *defaultSelector) Close() error {
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return nil
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}
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func (r *defaultSelector) String() string {
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return "default"
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}
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func newDefaultSelector(opts ...Option) Selector {
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sopts := Options{
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Strategy: Random,
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}
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for _, opt := range opts {
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opt(&sopts)
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}
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if sopts.Registry == nil {
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sopts.Registry = registry.DefaultRegistry
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}
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return &defaultSelector{sopts}
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}
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