72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package filestore
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import (
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"context"
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"os"
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"github.com/zeebo/errs"
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"storj.io/storj/storage"
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)
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// Error is the default filestore error class
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var Error = errs.Class("filestore error")
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var _ storage.Blobs = (*Store)(nil)
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// Store implements a blob store
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type Store struct {
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dir *Dir
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}
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// New creates a new disk blob store in the specified directory
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func New(dir *Dir) *Store {
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return &Store{dir}
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}
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// NewAt creates a new disk blob store in the specified directory
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func NewAt(path string) (*Store, error) {
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dir, err := NewDir(path)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return &Store{dir}, nil
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}
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// Open loads blob with the specified hash
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func (store *Store) Open(ctx context.Context, ref storage.BlobRef) (storage.BlobReader, error) {
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file, openErr := store.dir.Open(ref)
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if openErr != nil {
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if os.IsNotExist(openErr) {
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return nil, openErr
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}
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return nil, Error.Wrap(openErr)
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}
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return newBlobReader(file), nil
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}
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// Delete deletes blobs with the specified ref
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func (store *Store) Delete(ctx context.Context, ref storage.BlobRef) error {
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err := store.dir.Delete(ref)
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return Error.Wrap(err)
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}
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// GarbageCollect tries to delete any files that haven't yet been deleted
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func (store *Store) GarbageCollect(ctx context.Context) error {
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err := store.dir.GarbageCollect()
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return Error.Wrap(err)
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}
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// Create creates a new blob that can be written
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// optionally takes a size argument for performance improvements, -1 is unknown size
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func (store *Store) Create(ctx context.Context, ref storage.BlobRef, size int64) (storage.BlobWriter, error) {
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file, err := store.dir.CreateTemporaryFile(size)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return newBlobWriter(ref, store, file), nil
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}
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