1 files changed, 0 insertions, 134 deletions
diff --git a/go/storage/needle_map_leveldb.go b/go/storage/needle_map_leveldb.go
deleted file mode 100644
index 47f63e3ae..000000000
--- a/go/storage/needle_map_leveldb.go
+++ /dev/null
@@ -1,134 +0,0 @@
-package storage
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-
-	"github.com/chrislusf/seaweedfs/go/glog"
-	"github.com/chrislusf/seaweedfs/go/util"
-	"github.com/syndtr/goleveldb/leveldb"
-)
-
-type LevelDbNeedleMap struct {
-	dbFileName string
-	db         *leveldb.DB
-	baseNeedleMapper
-}
-
-func NewLevelDbNeedleMap(dbFileName string, indexFile *os.File) (m *LevelDbNeedleMap, err error) {
-	m = &LevelDbNeedleMap{dbFileName: dbFileName}
-	m.indexFile = indexFile
-	if !isLevelDbFresh(dbFileName, indexFile) {
-		glog.V(1).Infof("Start to Generate %s from %s", dbFileName, indexFile.Name())
-		generateLevelDbFile(dbFileName, indexFile)
-		glog.V(1).Infof("Finished Generating %s from %s", dbFileName, indexFile.Name())
-	}
-	glog.V(1).Infof("Opening %s...", dbFileName)
-	if m.db, err = leveldb.OpenFile(dbFileName, nil); err != nil {
-		return
-	}
-	glog.V(1).Infof("Loading %s...", indexFile.Name())
-	nm, indexLoadError := LoadNeedleMap(indexFile)
-	if indexLoadError != nil {
-		return nil, indexLoadError
-	}
-	m.mapMetric = nm.mapMetric
-	return
-}
-
-func isLevelDbFresh(dbFileName string, indexFile *os.File) bool {
-	// normally we always write to index file first
-	dbLogFile, err := os.Open(filepath.Join(dbFileName, "LOG"))
-	if err != nil {
-		return false
-	}
-	defer dbLogFile.Close()
-	dbStat, dbStatErr := dbLogFile.Stat()
-	indexStat, indexStatErr := indexFile.Stat()
-	if dbStatErr != nil || indexStatErr != nil {
-		glog.V(0).Infof("Can not stat file: %v and %v", dbStatErr, indexStatErr)
-		return false
-	}
-
-	return dbStat.ModTime().After(indexStat.ModTime())
-}
-
-func generateLevelDbFile(dbFileName string, indexFile *os.File) error {
-	db, err := leveldb.OpenFile(dbFileName, nil)
-	if err != nil {
-		return err
-	}
-	defer db.Close()
-	return WalkIndexFile(indexFile, func(key uint64, offset, size uint32) error {
-		if offset > 0 {
-			levelDbWrite(db, key, offset, size)
-		} else {
-			levelDbDelete(db, key)
-		}
-		return nil
-	})
-}
-
-func (m *LevelDbNeedleMap) Get(key uint64) (element *NeedleValue, ok bool) {
-	bytes := make([]byte, 8)
-	util.Uint64toBytes(bytes, key)
-	data, err := m.db.Get(bytes, nil)
-	if err != nil || len(data) != 8 {
-		return nil, false
-	}
-	offset := util.BytesToUint32(data[0:4])
-	size := util.BytesToUint32(data[4:8])
-	return &NeedleValue{Key: Key(key), Offset: offset, Size: size}, true
-}
-
-func (m *LevelDbNeedleMap) Put(key uint64, offset uint32, size uint32) error {
-	var oldSize uint32
-	if oldNeedle, ok := m.Get(key); ok {
-		oldSize = oldNeedle.Size
-	}
-	m.logPut(key, oldSize, size)
-	// write to index file first
-	if err := m.appendToIndexFile(key, offset, size); err != nil {
-		return fmt.Errorf("cannot write to indexfile %s: %v", m.indexFile.Name(), err)
-	}
-	return levelDbWrite(m.db, key, offset, size)
-}
-
-func levelDbWrite(db *leveldb.DB,
-	key uint64, offset uint32, size uint32) error {
-	bytes := make([]byte, 16)
-	util.Uint64toBytes(bytes[0:8], key)
-	util.Uint32toBytes(bytes[8:12], offset)
-	util.Uint32toBytes(bytes[12:16], size)
-	if err := db.Put(bytes[0:8], bytes[8:16], nil); err != nil {
-		return fmt.Errorf("failed to write leveldb: %v", err)
-	}
-	return nil
-}
-func levelDbDelete(db *leveldb.DB, key uint64) error {
-	bytes := make([]byte, 8)
-	util.Uint64toBytes(bytes, key)
-	return db.Delete(bytes, nil)
-}
-
-func (m *LevelDbNeedleMap) Delete(key uint64) error {
-	if oldNeedle, ok := m.Get(key); ok {
-		m.logDelete(oldNeedle.Size)
-	}
-	// write to index file first
-	if err := m.appendToIndexFile(key, 0, 0); err != nil {
-		return err
-	}
-	return levelDbDelete(m.db, key)
-}
-
-func (m *LevelDbNeedleMap) Close() {
-	m.db.Close()
-}
-
-func (m *LevelDbNeedleMap) Destroy() error {
-	m.Close()
-	os.Remove(m.indexFile.Name())
-	return os.Remove(m.dbFileName)
-}