Example #1
0
// OpenIndex open a existing index for read/write operations.
func (neo *NeoSearch) OpenIndex(name string) (*index.Index, error) {
	var (
		ok         bool
		cacheIndex interface{}
		indx       *index.Index
		err        error
	)

	cacheIndex, ok = neo.indices.Get(name)

	if ok && cacheIndex != nil {
		indx, ok = cacheIndex.(*index.Index)

		if !ok {
			panic("NeoSearch has inconsistent data stored in cache")
		}

		return indx, nil
	}

	ok, err = neo.IndexExists(name)

	if err == nil && !ok {
		return nil, fmt.Errorf("Index '%s' not found in directory '%s'.", name, neo.config.DataDir)
	} else if err != nil {
		return nil, err
	}

	indx, err = index.New(
		name,
		index.Config{
			DataDir:     neo.config.DataDir,
			Debug:       neo.config.Debug,
			CacheSize:   neo.config.KVCacheSize,
			EnableCache: neo.config.EnableCache,
		},
		false,
	)

	if err != nil {
		return nil, err
	}

	neo.indices.Add(name, indx)
	cachedIndices.Set(int64(neo.indices.Len()))
	return indx, nil
}
Example #2
0
// CreateIndex creates and setup a new index
func (neo *NeoSearch) CreateIndex(name string) (*index.Index, error) {
	indx, err := index.New(
		name,
		index.Config{
			DataDir:     neo.config.DataDir,
			Debug:       neo.config.Debug,
			CacheSize:   neo.config.KVCacheSize,
			EnableCache: neo.config.EnableCache,
		},
		true,
	)

	if err != nil {
		return nil, err
	}

	neo.indices.Add(name, indx)
	cachedIndices.Set(int64(neo.indices.Len()))
	return indx, nil
}