diff options
Diffstat (limited to 'go/operation/lookup.go')
| -rw-r--r-- | go/operation/lookup.go | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/go/operation/lookup.go b/go/operation/lookup.go index e9d1586a3..2eea1ab34 100644 --- a/go/operation/lookup.go +++ b/go/operation/lookup.go @@ -8,6 +8,7 @@ import ( "math/rand" "net/url" "strings" + "time" ) type Location struct { @@ -20,7 +21,22 @@ type LookupResult struct { Error string `json:"error,omitempty"` } -func Lookup(server string, vid string) (*LookupResult, error) { +var ( + vc VidCache +) + +func Lookup(server string, vid string) (ret *LookupResult, err error) { + locations, cache_err := vc.Get(vid) + if cache_err != nil { + ret, err = do_lookup(server, vid) + vc.Set(vid, ret.Locations, 1*time.Minute) + } else { + ret = &LookupResult{VolumeId: vid, Locations: locations} + } + return +} + +func do_lookup(server string, vid string) (*LookupResult, error) { values := make(url.Values) values.Add("volumeId", vid) jsonBlob, err := util.Post("http://"+server+"/dir/lookup", values) |