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https://github.com/chrislusf/seaweedfs
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5ce6bbf076
glide has its own requirements. My previous workaround caused me some code checkin errors. Need to fix this.
44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
package storage
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import (
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"encoding/hex"
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"errors"
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"strings"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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type FileId struct {
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VolumeId VolumeId
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Key uint64
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Hashcode uint32
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}
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func NewFileIdFromNeedle(VolumeId VolumeId, n *Needle) *FileId {
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return &FileId{VolumeId: VolumeId, Key: n.Id, Hashcode: n.Cookie}
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}
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func NewFileId(VolumeId VolumeId, Key uint64, Hashcode uint32) *FileId {
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return &FileId{VolumeId: VolumeId, Key: Key, Hashcode: Hashcode}
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}
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func ParseFileId(fid string) (*FileId, error) {
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a := strings.Split(fid, ",")
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if len(a) != 2 {
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glog.V(1).Infoln("Invalid fid ", fid, ", split length ", len(a))
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return nil, errors.New("Invalid fid " + fid)
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}
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vid_string, key_hash_string := a[0], a[1]
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volumeId, _ := NewVolumeId(vid_string)
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key, hash, e := ParseKeyHash(key_hash_string)
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return &FileId{VolumeId: volumeId, Key: key, Hashcode: hash}, e
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}
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func (n *FileId) String() string {
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bytes := make([]byte, 12)
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util.Uint64toBytes(bytes[0:8], n.Key)
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util.Uint32toBytes(bytes[8:12], n.Hashcode)
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nonzero_index := 0
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for ; bytes[nonzero_index] == 0; nonzero_index++ {
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}
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return n.VolumeId.String() + "," + hex.EncodeToString(bytes[nonzero_index:])
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}
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