Golang Directory.Close Examples

Example #1

File: segments.go Project: kiskovacs/golucene

/* Reads the most recent FieldInfos of the given segment info. */
func ReadFieldInfos(info *SegmentCommitInfo) (fis FieldInfos, err error) {
	var dir store.Directory
	var closeDir bool
	if info.FieldInfosGen() == -1 && info.Info.IsCompoundFile() {
		// no fieldInfos gen and segment uses a compound file
		if dir, err = store.NewCompoundFileDirectory(info.Info.Dir,
			util.SegmentFileName(info.Info.Name, "", store.COMPOUND_FILE_EXTENSION),
			store.IO_CONTEXT_READONCE, false); err != nil {
			return
		}
		closeDir = true
	} else {
		// gen'd FIS are read outside CFS, or the segment doesn't use a compound file
		dir = info.Info.Dir
		closeDir = false
	}

	defer func() {
		if closeDir {
			err = mergeError(err, dir.Close())
		}
	}()

	var segmentSuffix string
	if n := info.FieldInfosGen(); n != -1 {
		segmentSuffix = strconv.FormatInt(n, 36)
	}
	codec := info.Info.Codec().(Codec)
	fisFormat := codec.FieldInfosFormat()
	return fisFormat.FieldInfosReader()(dir, info.Info.Name, segmentSuffix, store.IO_CONTEXT_READONCE)
}