wisski-cloud-distillery/internal/dis/component/resolver/prefixes.go
2022-12-22 13:49:05 +01:00

51 lines
1 KiB
Go

package resolver
import (
"context"
)
func (resolver *Resolver) TaskName() string {
return "reloading prefixes"
}
func (resolver *Resolver) Cron(ctx context.Context) error {
prefixes, err := resolver.AllPrefixes(ctx)
if err != nil {
return err
}
resolver.prefixes.Set(prefixes)
return nil
}
// AllPrefixes returns a list of all prefixes from the server.
// Prefixes may be cached on the server
func (resolver *Resolver) AllPrefixes(ctx context.Context) (map[string]string, error) {
instances, err := resolver.Dependencies.Instances.All(ctx)
if err != nil {
return nil, err
}
gPrefixes := make(map[string]string)
var lastErr error
for _, instance := range instances {
if instance.Prefixes().NoPrefix() {
continue
}
url := instance.URL().String()
// failed to fetch prefixes for this particular instance
// => skip it!
prefixes, err := instance.Prefixes().AllCached(ctx)
if err != nil {
lastErr = err
continue
}
for _, p := range prefixes {
gPrefixes[p] = url
}
}
return gPrefixes, lastErr
}