2014-04-09 16:44:58 +00:00
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package filer
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import (
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2014-04-10 04:01:48 +00:00
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"fmt"
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2014-04-09 16:44:58 +00:00
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"path/filepath"
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)
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type FilerEmbedded struct {
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directories *DirectoryManagerInMap
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files *FileListInLevelDb
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}
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func NewFilerEmbedded(dir string) (filer *FilerEmbedded, err error) {
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dm, de := NewDirectoryManagerInMap(filepath.Join(dir, "dir.log"))
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if de != nil {
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return nil, de
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}
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fl, fe := NewFileListInLevelDb(dir)
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if fe != nil {
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return nil, fe
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}
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filer = &FilerEmbedded{
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directories: dm,
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files: fl,
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}
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return
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}
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func (filer *FilerEmbedded) CreateFile(filePath string, fid string) (err error) {
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dir, file := filepath.Split(filePath)
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dirId, e := filer.directories.MakeDirectory(dir)
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if e != nil {
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return e
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}
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return filer.files.CreateFile(dirId, file, fid)
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}
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func (filer *FilerEmbedded) FindFile(filePath string) (fid string, err error) {
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dir, file := filepath.Split(filePath)
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dirId, e := filer.directories.FindDirectory(dir)
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if e != nil {
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return "", e
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}
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return filer.files.FindFile(dirId, file)
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}
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func (filer *FilerEmbedded) ListDirectories(dirPath string) (dirs []DirectoryEntry, err error) {
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return filer.directories.ListDirectories(dirPath)
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}
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func (filer *FilerEmbedded) ListFiles(dirPath string, lastFileName string, limit int) (files []FileEntry, err error) {
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dirId, e := filer.directories.FindDirectory(dirPath)
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if e != nil {
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return nil, e
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}
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return filer.files.ListFiles(dirId, lastFileName, limit), nil
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}
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func (filer *FilerEmbedded) DeleteDirectory(dirPath string) (err error) {
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2014-04-10 04:01:48 +00:00
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dirId, e := filer.directories.FindDirectory(dirPath)
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if e != nil {
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return e
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}
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if len(filer.files.ListFiles(dirId, "", 1)) > 0 {
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return fmt.Errorf("Fail to delete non-empty directory %s!", dirPath)
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}
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2014-04-09 16:44:58 +00:00
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return filer.directories.DeleteDirectory(dirPath)
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}
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func (filer *FilerEmbedded) DeleteFile(filePath string) (fid string, err error) {
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dir, file := filepath.Split(filePath)
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dirId, e := filer.directories.FindDirectory(dir)
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if e != nil {
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return "", e
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}
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return filer.files.DeleteFile(dirId, file)
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}
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