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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 }
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