// 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
}
// 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
}