New instantiates a new Engine
(l *zap.SugaredLogger, opts Opts)
| 44 | |
| 45 | // New instantiates a new Engine |
| 46 | func New(l *zap.SugaredLogger, opts Opts) (*Engine, error) { |
| 47 | index, err := bleve.New(opts.StorePath, newLensIndex()) |
| 48 | if err != nil { |
| 49 | if err == bleve.ErrorIndexPathExists { |
| 50 | l.Infow("opening existing index", |
| 51 | "path", opts.StorePath) |
| 52 | index, err = bleve.Open(opts.StorePath) |
| 53 | if err != nil { |
| 54 | return nil, fmt.Errorf("failed to open existing index at %s: %s", |
| 55 | opts.StorePath, err.Error()) |
| 56 | } |
| 57 | } else { |
| 58 | return nil, fmt.Errorf("failed to instantiate index: %s", err.Error()) |
| 59 | } |
| 60 | } else { |
| 61 | l.Infow("successfully created new bleve index", |
| 62 | "path", opts.StorePath) |
| 63 | } |
| 64 | |
| 65 | var queueLogger = l.Named("queue") |
| 66 | return &Engine{ |
| 67 | l: l, |
| 68 | |
| 69 | index: index, |
| 70 | |
| 71 | q: queue.New(queueLogger, |
| 72 | func(items []*queue.Item) error { |
| 73 | var b = index.NewBatch() |
| 74 | for _, item := range items { |
| 75 | if item != nil { |
| 76 | if item.Val != nil { |
| 77 | if err := b.Index(item.Key, item.Val); err != nil { |
| 78 | queueLogger.Errorw("failed to add document to batch", |
| 79 | "error", err, "key", item.Key) |
| 80 | } |
| 81 | } else { |
| 82 | b.Delete(item.Key) |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | return index.Batch(b) |
| 87 | }, |
| 88 | index.Close, |
| 89 | opts.Queue), |
| 90 | |
| 91 | stop: make(chan bool, 1), |
| 92 | }, nil |
| 93 | } |
| 94 | |
| 95 | // ClusterOpts denotes Lens database clustering options |
| 96 | type ClusterOpts struct { |