Query returns the set of releases that match the provided set of labels
(keyvals map[string]string)
| 116 | |
| 117 | // Query returns the set of releases that match the provided set of labels |
| 118 | func (mem *Memory) Query(keyvals map[string]string) ([]release.Releaser, error) { |
| 119 | defer unlock(mem.rlock()) |
| 120 | |
| 121 | var lbs labels |
| 122 | |
| 123 | lbs.init() |
| 124 | lbs.fromMap(keyvals) |
| 125 | |
| 126 | var ls []release.Releaser |
| 127 | for namespace := range mem.cache { |
| 128 | if mem.namespace != "" { |
| 129 | // Should only query releases of this namespace |
| 130 | namespace = mem.namespace |
| 131 | } |
| 132 | for _, recs := range mem.cache[namespace] { |
| 133 | recs.Iter(func(_ int, rec *record) bool { |
| 134 | // A query for a release name that doesn't exist (has been deleted) |
| 135 | // can cause rec to be nil. |
| 136 | if rec == nil { |
| 137 | return false |
| 138 | } |
| 139 | if rec.lbs.match(lbs) { |
| 140 | ls = append(ls, rec.rls) |
| 141 | } |
| 142 | return true |
| 143 | }) |
| 144 | } |
| 145 | if mem.namespace != "" { |
| 146 | // Should only query releases of this namespace |
| 147 | break |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | if len(ls) == 0 { |
| 152 | return nil, ErrReleaseNotFound |
| 153 | } |
| 154 | |
| 155 | return ls, nil |
| 156 | } |
| 157 | |
| 158 | // Create creates a new release or returns ErrReleaseExists. |
| 159 | func (mem *Memory) Create(key string, rel release.Releaser) error { |