54 lines
978 B
Go
54 lines
978 B
Go
package memory
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import (
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"errors"
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"github.com/asim/go-micro/v3/registry"
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)
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type Watcher struct {
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id string
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wo registry.WatchOptions
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res chan *registry.Result
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exit chan bool
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}
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func (m *Watcher) Next() (*registry.Result, error) {
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for {
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select {
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case r := <-m.res:
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if r.Service == nil {
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continue
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}
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if len(m.wo.Service) > 0 && m.wo.Service != r.Service.Name {
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continue
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}
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// extract domain from service metadata
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var domain string
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if r.Service.Metadata != nil && len(r.Service.Metadata["domain"]) > 0 {
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domain = r.Service.Metadata["domain"]
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} else {
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domain = registry.DefaultDomain
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}
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// only send the event if watching the wildcard or this specific domain
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if m.wo.Domain == registry.WildcardDomain || m.wo.Domain == domain {
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return r, nil
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}
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case <-m.exit:
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return nil, errors.New("watcher stopped")
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}
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}
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}
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func (m *Watcher) Stop() {
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select {
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case <-m.exit:
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return
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default:
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close(m.exit)
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}
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}
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