mirror of
https://github.com/seaweedfs/seaweedfs.git
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95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
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package filer2
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import (
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/filer2/embedded"
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"github.com/karlseguin/ccache"
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"strings"
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)
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type Filer struct {
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master string
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store FilerStore
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directoryCache *ccache.Cache
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}
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func NewFiler(master string) *Filer {
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return &Filer{
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master: master,
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directoryCache: ccache.New(ccache.Configure().MaxSize(1000).ItemsToPrune(100)),
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}
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}
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func NewEmbeddedFiler(master string, dir string) (*Filer, error) {
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_, err := embedded.NewEmbeddedStore(dir)
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if err != nil {
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return nil, fmt.Errorf("failed to create embedded filer store: %v", err)
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}
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return &Filer{
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master: master,
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// store: store,
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}, nil
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}
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func (f *Filer) CreateEntry(entry Entry) (error) {
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/*
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1. recursively ensure parent directory is created.
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2. get current parent directory, add link,
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3. add the file entry
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*/
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f.recursivelyEnsureDirectory(entry.Dir, func(parent, name string) error {
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return nil
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})
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return f.store.CreateEntry(entry)
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}
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func (f *Filer) AppendFileChunk(p FullPath, c FileChunk) (err error) {
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return f.store.AppendFileChunk(p, c)
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}
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func (f *Filer) FindEntry(p FullPath) (found bool, fileEntry Entry, err error) {
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return f.store.FindEntry(p)
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}
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func (f *Filer) DeleteEntry(p FullPath) (fileEntry Entry, err error) {
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return f.store.DeleteEntry(p)
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}
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func (f *Filer) ListDirectoryEntries(p FullPath) ([]Entry, error) {
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return f.store.ListDirectoryEntries(p)
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}
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func (f *Filer) UpdateEntry(entry Entry) (error) {
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return f.store.UpdateEntry(entry)
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}
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func (f *Filer) recursivelyEnsureDirectory(fullPath string, fn func(parent, name string) error) (error) {
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if strings.HasSuffix(fullPath, "/") {
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fullPath = fullPath[0:len(fullPath)-1]
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}
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nextPathEnd := strings.LastIndex(fullPath, "/")
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if nextPathEnd < 0 {
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return nil
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}
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dirName := fullPath[nextPathEnd+1:]
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parentDirPath := fullPath[0:nextPathEnd]
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if parentDirPath == "" {
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parentDirPath = "/"
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}
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if err := fn(parentDirPath, dirName); err != nil {
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return err
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}
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return f.recursivelyEnsureDirectory(parentDirPath, fn)
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}
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func (f *Filer) cacheGetDirectory(dirpath string) (error) {
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return nil
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}
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