ui add ec shard statuses

weed/storage/erasure_coding/ec_shard.go

@@ -39,6 +39,10 @@ func NewEcVolumeShard(dirname string, collection string, id needle.VolumeId, sha
 	return
 }
 
+func (shard *EcVolumeShard) Size() int64 {
+	return shard.ecdFileSize
+}
+
 func (shard *EcVolumeShard) String() string {
 	return fmt.Sprintf("ec shard %v:%v, dir:%s, Collection:%s", shard.VolumeId, shard.ShardId, shard.dir, shard.Collection)
 }

weed/storage/erasure_coding/ec_volume.go

@@ -20,6 +20,7 @@ type EcVolume struct {
 	dir                       string
 	ecxFile                   *os.File
 	ecxFileSize               int64
+	ecxCreatedAt              time.Time
 	Shards                    []*EcVolumeShard
 	ShardLocations            map[ShardId][]string
 	ShardLocationsRefreshTime time.Time
@@ -41,6 +42,7 @@ func NewEcVolume(dir string, collection string, vid needle.VolumeId) (ev *EcVolu
 		return nil, fmt.Errorf("can not stat ec volume index %s.ecx: %v", baseFileName, statErr)
 	}
 	ev.ecxFileSize = ecxFi.Size()
+	ev.ecxCreatedAt = ecxFi.ModTime()
 
 	ev.ShardLocations = make(map[ShardId][]string)
 
@@ -113,6 +115,24 @@ func (ev *EcVolume) FileName() string {
 
 }
 
+func (ev *EcVolume) ShardSize() int64 {
+	if len(ev.Shards) > 0 {
+		return ev.Shards[0].Size()
+	}
+	return 0
+}
+
+func (ev *EcVolume) CreatedAt() time.Time {
+	return ev.ecxCreatedAt
+}
+
+func (ev *EcVolume) ShardIdList() (shardIds []ShardId) {
+	for _, s := range ev.Shards {
+		shardIds = append(shardIds, s.ShardId)
+	}
+	return
+}
+
 func (ev *EcVolume) ToVolumeEcShardInformationMessage() (messages []*master_pb.VolumeEcShardInformationMessage) {
 	prevVolumeId := needle.VolumeId(math.MaxUint32)
 	var m *master_pb.VolumeEcShardInformationMessage