testing compilation with remove package

go/operation/lookup_volume_id.go

@@ -0,0 +1,38 @@
+package operation
+
+import (
+	"encoding/json"
+	"errors"
+	_ "fmt"
+	"net/url"
+	"code.google.com/p/weed-fs/go/storage"
+	"code.google.com/p/weed-fs/go/util"
+)
+
+type Location struct {
+	Url       string "url"
+	PublicUrl string "publicUrl"
+}
+type LookupResult struct {
+	Locations []Location "locations"
+	Error     string     "error"
+}
+
+//TODO: Add a caching for vid here
+func Lookup(server string, vid storage.VolumeId) (*LookupResult, error) {
+	values := make(url.Values)
+	values.Add("volumeId", vid.String())
+	jsonBlob, err := util.Post("http://"+server+"/dir/lookup", values)
+	if err != nil {
+		return nil, err
+	}
+	var ret LookupResult
+	err = json.Unmarshal(jsonBlob, &ret)
+	if err != nil {
+		return nil, err
+	}
+	if ret.Error != "" {
+		return nil, errors.New(ret.Error)
+	}
+	return &ret, nil
+}