| 55 | return StorageName |
| 56 | } |
| 57 | |
| 58 | func (s Store) Open(path string, cfg *config.Config) (driver.IDB, error) { |
| 59 | if err := os.MkdirAll(path, fs.ModePerm); err != nil { |
| 60 | return nil, err |
| 61 | } |
| 62 | |
| 63 | db := new(DB) |
| 64 | db.path = path |
| 65 | db.cfg = &cfg.LevelDB |
| 66 | db.versions = make(map[string]uint64) |
| 67 | |
| 68 | // Set encryption key if provided |
| 69 | if len(DefaultConfig.EncryptionKey) > 0 { |
| 70 | db.encryptionKey = []byte(DefaultConfig.EncryptionKey) |
| 71 | } |
| 72 | |
| 73 | db.initOpts() |
| 74 | |
| 75 | var err error |
| 76 | db.localDB, err = leveldb.OpenFile(db.path, db.opts) |
| 77 | |
| 78 | if err != nil { |
| 79 | return nil, err |
| 80 | } |
| 81 | if DefaultConfig.HotCacheSize <= 0 { |
| 82 | DefaultConfig.HotCacheSize = defaultHotCacheSize |
| 83 | } |
| 84 | |
| 85 | // here we use default value, later add config support |
| 86 | db.cache, err = ristretto.NewCache(&ristretto.Config{ |
| 87 | MaxCost: DefaultConfig.HotCacheSize * MB, |
| 88 | NumCounters: defaultHotCacheNumCounters, |
| 89 | BufferItems: 64, |
| 90 | Metrics: true, |
| 91 | Cost: func(value interface{}) int64 { |
| 92 | return int64(len(value.([]byte))) |
| 93 | }, |
| 94 | }) |
| 95 | |
| 96 | if err != nil { |
| 97 | return nil, err |
| 98 | } |
| 99 | |
| 100 | sh := shell.NewShell(DefaultConfig.EndPointConnection) |
| 101 | db.remoteShell = sh |
| 102 | |
| 103 | // Initialize ipfs-log components |
| 104 | db.ctx = context.Background() |
| 105 | db.logger = zap.NewNop() |
| 106 | |
| 107 | // Create IPFS node and API |
| 108 | node, api, err := iflog.CreateNode(db.ctx, path) |
| 109 | if err != nil { |
| 110 | return nil, fmt.Errorf("failed to create IPFS node: %w", err) |
| 111 | } |
| 112 | db.ipfsNode = node |
| 113 | |
| 114 | // Create ipfs-log event log with proper namespace |