70 lines
1.4 KiB
Go
Executable File
70 lines
1.4 KiB
Go
Executable File
package storage
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import (
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"gogs.inhome.blapointe.com/local/storage/resolve"
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"github.com/boltdb/bolt"
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)
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type Bolt struct {
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db *bolt.DB
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}
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func NewBolt(path string) (*Bolt, error) {
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db, err := bolt.Open(path, 0600, nil)
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return &Bolt{
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db: db,
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}, err
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}
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func (b *Bolt) List(ns []string, limits ...string) ([]string, error) {
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namespace := resolve.Namespace(ns)
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limits = resolve.Limits(limits)
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found := []string{}
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err := b.db.View(func(tx *bolt.Tx) error {
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bucket := tx.Bucket([]byte(namespace))
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if bucket == nil {
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return nil
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}
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c := bucket.Cursor()
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for k, _ := c.Seek([]byte(limits[0])); k != nil; k, _ = c.Next() {
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found = append(found, string(k))
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}
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return nil
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})
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return found, err
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}
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func (b *Bolt) Get(key string, ns ...string) ([]byte, error) {
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namespace := resolve.Namespace(ns)
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var result []byte
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err := b.db.View(func(tx *bolt.Tx) error {
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bkt := tx.Bucket([]byte(namespace))
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if bkt == nil {
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return ErrNotFound
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}
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result = bkt.Get([]byte(key))
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if result == nil {
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return ErrNotFound
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}
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return nil
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})
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return result, err
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}
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func (b *Bolt) Set(key string, value []byte, ns ...string) error {
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namespace := resolve.Namespace(ns)
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return b.db.Update(func(tx *bolt.Tx) error {
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bkt, err := tx.CreateBucketIfNotExists([]byte(namespace))
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if err != nil {
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return err
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}
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return bkt.Put([]byte(key), value)
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})
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}
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func (b *Bolt) Close() error {
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return b.db.Close()
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}
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