package storage import ( "io/ioutil" "strings" "github.com/chrislusf/seaweedfs/go/glog" ) type DiskLocation struct { Directory string MaxVolumeCount int volumes map[VolumeId]*Volume } func NewDiskLocation(dir string, maxVolumeCount int) *DiskLocation { location := &DiskLocation{Directory: dir, MaxVolumeCount: maxVolumeCount} location.volumes = make(map[VolumeId]*Volume) return location } func (l *DiskLocation) loadExistingVolumes(needleMapKind NeedleMapType) { if dirs, err := ioutil.ReadDir(l.Directory); err == nil { for _, dir := range dirs { name := dir.Name() if !dir.IsDir() && strings.HasSuffix(name, ".dat") { collection := "" base := name[:len(name)-len(".dat")] i := strings.LastIndex(base, "_") if i > 0 { collection, base = base[0:i], base[i+1:] } if vid, err := NewVolumeId(base); err == nil { if l.volumes[vid] == nil { if v, e := NewVolume(l.Directory, collection, vid, needleMapKind, nil, nil); e == nil { l.volumes[vid] = v glog.V(0).Infof("data file %s, replicaPlacement=%s v=%d size=%d ttl=%s", l.Directory+"/"+name, v.ReplicaPlacement, v.Version(), v.Size(), v.Ttl.String()) } else { glog.V(0).Infof("new volume %s error %s", name, e) } } } } } } glog.V(0).Infoln("Store started on dir:", l.Directory, "with", len(l.volumes), "volumes", "max", l.MaxVolumeCount) } func (l *DiskLocation) DeleteCollectionFromDiskLocation(collection string) (e error) { for k, v := range l.volumes { if v.Collection == collection { e = l.deleteVolumeById(k) if e != nil { return } } } return } func (l *DiskLocation) deleteVolumeById(vid VolumeId) (e error) { v, ok := l.volumes[vid] if !ok { return } e = v.Destroy() if e != nil { return } delete(l.volumes, vid) return }