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loadbalancer.go
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/
loadbalancer.go
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package resolver
import (
"context"
internal "github.com/UpCloudLtd/upcloud-cli/v3/internal/service"
"github.com/UpCloudLtd/upcloud-go-api/v8/upcloud/request"
)
// CachingLoadBalancer implements resolver for servers, caching the results
type CachingLoadBalancer struct{}
// make sure we implement the ResolutionProvider interface
var _ ResolutionProvider = CachingLoadBalancer{}
// Get implements ResolutionProvider.Get
func (s CachingLoadBalancer) Get(ctx context.Context, svc internal.AllServices) (Resolver, error) {
loadbalancers, err := svc.GetLoadBalancers(ctx, &request.GetLoadBalancersRequest{})
if err != nil {
return nil, err
}
return func(arg string) (uuid string, err error) {
rv := ""
for _, lb := range loadbalancers {
if lb.Name == arg || lb.UUID == arg {
if rv != "" {
return "", AmbiguousResolutionError(arg)
}
rv = lb.UUID
}
}
if rv != "" {
return rv, nil
}
return "", NotFoundError(arg)
}, nil
}
// PositionalArgumentHelp implements resolver.ResolutionProvider
func (s CachingLoadBalancer) PositionalArgumentHelp() string {
return "<UUID/Name...>"
}