1 files changed, 147 insertions, 0 deletions
diff --git a/weed/filer/entry_codec.go b/weed/filer/entry_codec.go
new file mode 100644
index 000000000..4c613f068
--- /dev/null
+++ b/weed/filer/entry_codec.go
@@ -0,0 +1,147 @@
+package filer
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func (entry *Entry) EncodeAttributesAndChunks() ([]byte, error) {
+	message := &filer_pb.Entry{
+		Attributes:      EntryAttributeToPb(entry),
+		Chunks:          entry.Chunks,
+		Extended:        entry.Extended,
+		HardLinkId:      entry.HardLinkId,
+		HardLinkCounter: entry.HardLinkCounter,
+		Content:         entry.Content,
+	}
+	return proto.Marshal(message)
+}
+
+func (entry *Entry) DecodeAttributesAndChunks(blob []byte) error {
+
+	message := &filer_pb.Entry{}
+
+	if err := proto.UnmarshalMerge(blob, message); err != nil {
+		return fmt.Errorf("decoding value blob for %s: %v", entry.FullPath, err)
+	}
+
+	entry.Attr = PbToEntryAttribute(message.Attributes)
+
+	entry.Extended = message.Extended
+
+	entry.Chunks = message.Chunks
+
+	entry.HardLinkId = message.HardLinkId
+	entry.HardLinkCounter = message.HardLinkCounter
+	entry.Content = message.Content
+
+	return nil
+}
+
+func EntryAttributeToPb(entry *Entry) *filer_pb.FuseAttributes {
+
+	return &filer_pb.FuseAttributes{
+		Crtime:        entry.Attr.Crtime.Unix(),
+		Mtime:         entry.Attr.Mtime.Unix(),
+		FileMode:      uint32(entry.Attr.Mode),
+		Uid:           entry.Uid,
+		Gid:           entry.Gid,
+		Mime:          entry.Mime,
+		Collection:    entry.Attr.Collection,
+		Replication:   entry.Attr.Replication,
+		TtlSec:        entry.Attr.TtlSec,
+		DiskType:      entry.Attr.DiskType,
+		UserName:      entry.Attr.UserName,
+		GroupName:     entry.Attr.GroupNames,
+		SymlinkTarget: entry.Attr.SymlinkTarget,
+		Md5:           entry.Attr.Md5,
+		FileSize:      entry.Attr.FileSize,
+	}
+}
+
+func PbToEntryAttribute(attr *filer_pb.FuseAttributes) Attr {
+
+	t := Attr{}
+
+	if attr == nil {
+		return t
+	}
+
+	t.Crtime = time.Unix(attr.Crtime, 0)
+	t.Mtime = time.Unix(attr.Mtime, 0)
+	t.Mode = os.FileMode(attr.FileMode)
+	t.Uid = attr.Uid
+	t.Gid = attr.Gid
+	t.Mime = attr.Mime
+	t.Collection = attr.Collection
+	t.Replication = attr.Replication
+	t.TtlSec = attr.TtlSec
+	t.DiskType = attr.DiskType
+	t.UserName = attr.UserName
+	t.GroupNames = attr.GroupName
+	t.SymlinkTarget = attr.SymlinkTarget
+	t.Md5 = attr.Md5
+	t.FileSize = attr.FileSize
+
+	return t
+}
+
+func EqualEntry(a, b *Entry) bool {
+	if a == b {
+		return true
+	}
+	if a == nil && b != nil || a != nil && b == nil {
+		return false
+	}
+	if !proto.Equal(EntryAttributeToPb(a), EntryAttributeToPb(b)) {
+		return false
+	}
+	if len(a.Chunks) != len(b.Chunks) {
+		return false
+	}
+
+	if !eq(a.Extended, b.Extended) {
+		return false
+	}
+
+	if !bytes.Equal(a.Md5, b.Md5) {
+		return false
+	}
+
+	for i := 0; i < len(a.Chunks); i++ {
+		if !proto.Equal(a.Chunks[i], b.Chunks[i]) {
+			return false
+		}
+	}
+
+	if !bytes.Equal(a.HardLinkId, b.HardLinkId) {
+		return false
+	}
+	if a.HardLinkCounter != b.HardLinkCounter {
+		return false
+	}
+	if !bytes.Equal(a.Content, b.Content) {
+		return false
+	}
+	return true
+}
+
+func eq(a, b map[string][]byte) bool {
+	if len(a) != len(b) {
+		return false
+	}
+
+	for k, v := range a {
+		if w, ok := b[k]; !ok || !bytes.Equal(v, w) {
+			return false
+		}
+	}
+
+	return true
+}