seaweedfs/weed/operation/assign_file_id.go
2016-06-26 10:50:18 +08:00

69 lines
1.5 KiB
Go

package operation
import (
"encoding/json"
"errors"
"fmt"
"net/url"
"strconv"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/util"
)
type VolumeAssignRequest struct {
Count uint64
Replication string
Collection string
Ttl string
DataCenter string
Rack string
DataNode string
}
type AssignResult struct {
Fid string `json:"fid,omitempty"`
Url string `json:"url,omitempty"`
PublicUrl string `json:"publicUrl,omitempty"`
Count uint64 `json:"count,omitempty"`
Error string `json:"error,omitempty"`
}
func Assign(server string, r *VolumeAssignRequest) (*AssignResult, error) {
values := make(url.Values)
values.Add("count", strconv.FormatUint(r.Count, 10))
if r.Replication != "" {
values.Add("replication", r.Replication)
}
if r.Collection != "" {
values.Add("collection", r.Collection)
}
if r.Ttl != "" {
values.Add("ttl", r.Ttl)
}
if r.DataCenter != "" {
values.Add("dataCenter", r.DataCenter)
}
if r.Rack != "" {
values.Add("rack", r.Rack)
}
if r.DataNode != "" {
values.Add("dataNode", r.DataNode)
}
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, fmt.Errorf("/dir/assign result JSON unmarshal error:%v, json:%s", err, string(jsonBlob))
}
if ret.Count <= 0 {
return nil, errors.New(ret.Error)
}
return &ret, nil
}