GetMeta returns the metadata of the record with the given key.
(key string)
| 80 | |
| 81 | // GetMeta returns the metadata of the record with the given key. |
| 82 | func (c *Controller) GetMeta(key string) (*record.Meta, error) { |
| 83 | if shuttingDown.IsSet() { |
| 84 | return nil, ErrShuttingDown |
| 85 | } |
| 86 | |
| 87 | var m *record.Meta |
| 88 | var err error |
| 89 | if metaDB, ok := c.storage.(storage.MetaHandler); ok { |
| 90 | m, err = metaDB.GetMeta(key) |
| 91 | if err != nil { |
| 92 | // replace not found error |
| 93 | if errors.Is(err, storage.ErrNotFound) { |
| 94 | return nil, ErrNotFound |
| 95 | } |
| 96 | return nil, err |
| 97 | } |
| 98 | } else { |
| 99 | r, err := c.storage.Get(key) |
| 100 | if err != nil { |
| 101 | // replace not found error |
| 102 | if errors.Is(err, storage.ErrNotFound) { |
| 103 | return nil, ErrNotFound |
| 104 | } |
| 105 | return nil, err |
| 106 | } |
| 107 | m = r.Meta() |
| 108 | } |
| 109 | |
| 110 | if !m.CheckValidity() { |
| 111 | return nil, ErrNotFound |
| 112 | } |
| 113 | |
| 114 | return m, nil |
| 115 | } |
| 116 | |
| 117 | // Put saves a record in the database, executes any registered |
| 118 | // pre-put hooks and finally send an update to all subscribers. |