Exemplo n.º 1
0
// Query implements Datastore.Query
func (d *Datastore) Query(q query.Query) (query.Results, error) {

	results := make(chan query.Result)

	walkFn := func(path string, info os.FileInfo, err error) error {
		// remove ds path prefix
		if strings.HasPrefix(path, d.path) {
			path = path[len(d.path):]
		}

		if !info.IsDir() {
			if strings.HasSuffix(path, ObjectKeySuffix) {
				path = path[:len(path)-len(ObjectKeySuffix)]
			}
			key := ds.NewKey(path)
			entry := query.Entry{Key: key.String(), Value: query.NotFetched}
			results <- query.Result{Entry: entry}
		}
		return nil
	}

	go func() {
		filepath.Walk(d.path, walkFn)
		close(results)
	}()
	r := query.ResultsWithChan(q, results)
	r = query.NaiveQueryApply(q, r)
	return r, nil
}
Exemplo n.º 2
0
// Query implements Datastore.Query
func (d *MapDatastore) Query(q dsq.Query) (dsq.Results, error) {
	re := make([]dsq.Entry, 0, len(d.values))
	for k, v := range d.values {
		re = append(re, dsq.Entry{Key: k.String(), Value: v})
	}
	r := dsq.ResultsWithEntries(q, re)
	r = dsq.NaiveQueryApply(q, r)
	return r, nil
}