73 lines
1.5 KiB
Go
Executable File
73 lines
1.5 KiB
Go
Executable File
package store
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import (
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"github.com/boltdb/bolt"
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)
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type BoltClient struct {
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db *bolt.DB
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}
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func NewBolt(path string) (*BoltClient, error) {
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db, err := bolt.Open(path, 0600, nil)
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if err != nil {
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return nil, err
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}
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return &BoltClient{
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db: db,
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}, nil
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}
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func (bc *BoltClient) Close() error {
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return bc.db.Close()
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}
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func (bc *BoltClient) Set(namespace, key string, value []byte) error {
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return bc.db.Update(func(tx *bolt.Tx) error {
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bucket, 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 bucket.Put([]byte(key), value)
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})
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}
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func (bc *BoltClient) List(namespace, key string, asc bool, limit int) ([]string, error) {
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if limit < 1 {
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limit = 10000
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}
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found := []string{}
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err := bc.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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if asc {
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for k, _ := c.Seek([]byte(key)); k != nil && len(found) < limit; k, _ = c.Next() {
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found = append(found, string(k))
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}
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} else {
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c.Seek([]byte(key + "}}}}}}}}}}}}}}"))
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for k, _ := c.Prev(); k != nil && len(found) < limit; k, _ = c.Prev() {
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found = append(found, string(k))
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}
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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 (bc *BoltClient) Get(namespace, key string) ([]byte, error) {
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var result []byte
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err := bc.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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result = bucket.Get([]byte(key))
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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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