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740 B

package topology
import (
"code.google.com/p/weed-fs/go/storage"
"code.google.com/p/weed-fs/go/util"
"encoding/json"
"errors"
"net/url"
)
type AllocateVolumeResult struct {
Error string
}
func AllocateVolume(dn *DataNode, vid storage.VolumeId, collection string, rp *storage.ReplicaPlacement) error {
values := make(url.Values)
values.Add("volume", vid.String())
values.Add("collection", collection)
values.Add("replication", rp.String())
jsonBlob, err := util.Post("http://"+dn.PublicUrl+"/admin/assign_volume", values)
if err != nil {
return err
}
var ret AllocateVolumeResult
if err := json.Unmarshal(jsonBlob, &ret); err != nil {
return err
}
if ret.Error != "" {
return errors.New(ret.Error)
}
return nil
}