seaweedfs/go/operation/assign_file_id.go

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package operation
import (
"code.google.com/p/weed-fs/go/glog"
"code.google.com/p/weed-fs/go/util"
"encoding/json"
"errors"
"net/url"
"strconv"
)
type AssignResult struct {
Fid string `json:"fid"`
Url string `json:"url"`
PublicUrl string `json:"publicUrl"`
Count int
Error string `json:"error"`
}
func Assign(server string, count int, replication string) (*AssignResult, error) {
values := make(url.Values)
values.Add("count", strconv.Itoa(count))
if replication != "" {
values.Add("replication", replication)
}
jsonBlob, err := util.Post("http://"+server+"/dir/assign", values)
glog.V(2).Info("assign result :", string(jsonBlob))
if err != nil {
return nil, err
}
var ret AssignResult
err = json.Unmarshal(jsonBlob, &ret)
if err != nil {
return nil, err
}
if ret.Count <= 0 {
return nil, errors.New(ret.Error)
}
return &ret, nil
}