seaweedfs/weed/pb/filer_pb/filer_pb_helper.go
chrislu 70a4c98b00 refactor filer_pb.Entry and filer.Entry to use GetChunks()
for later locking on reading chunks
2022-11-15 06:33:36 -08:00

171 lines
4.6 KiB
Go

package filer_pb
import (
"context"
"errors"
"fmt"
"os"
"strings"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"github.com/viant/ptrie"
"google.golang.org/protobuf/proto"
)
func (entry *Entry) IsInRemoteOnly() bool {
return len(entry.GetChunks()) == 0 && entry.RemoteEntry != nil && entry.RemoteEntry.RemoteSize > 0
}
func (entry *Entry) IsDirectoryKeyObject() bool {
return entry.IsDirectory && entry.Attributes != nil && entry.Attributes.Mime != ""
}
func (entry *Entry) FileMode() (fileMode os.FileMode) {
if entry != nil && entry.Attributes != nil {
fileMode = os.FileMode(entry.Attributes.FileMode)
}
return
}
func ToFileIdObject(fileIdStr string) (*FileId, error) {
t, err := needle.ParseFileIdFromString(fileIdStr)
if err != nil {
return nil, err
}
return &FileId{
VolumeId: uint32(t.VolumeId),
Cookie: uint32(t.Cookie),
FileKey: uint64(t.Key),
}, nil
}
func (fid *FileId) toFileIdString() string {
return needle.NewFileId(needle.VolumeId(fid.VolumeId), fid.FileKey, fid.Cookie).String()
}
func (c *FileChunk) GetFileIdString() string {
if c.FileId != "" {
return c.FileId
}
if c.Fid != nil {
c.FileId = c.Fid.toFileIdString()
return c.FileId
}
return ""
}
func BeforeEntrySerialization(chunks []*FileChunk) {
for _, chunk := range chunks {
if chunk.FileId != "" {
if fid, err := ToFileIdObject(chunk.FileId); err == nil {
chunk.Fid = fid
chunk.FileId = ""
}
}
if chunk.SourceFileId != "" {
if fid, err := ToFileIdObject(chunk.SourceFileId); err == nil {
chunk.SourceFid = fid
chunk.SourceFileId = ""
}
}
}
}
func EnsureFid(chunk *FileChunk) {
if chunk.Fid != nil {
return
}
if fid, err := ToFileIdObject(chunk.FileId); err == nil {
chunk.Fid = fid
}
}
func AfterEntryDeserialization(chunks []*FileChunk) {
for _, chunk := range chunks {
if chunk.Fid != nil && chunk.FileId == "" {
chunk.FileId = chunk.Fid.toFileIdString()
}
if chunk.SourceFid != nil && chunk.SourceFileId == "" {
chunk.SourceFileId = chunk.SourceFid.toFileIdString()
}
}
}
func CreateEntry(client SeaweedFilerClient, request *CreateEntryRequest) error {
resp, err := client.CreateEntry(context.Background(), request)
if err != nil {
glog.V(1).Infof("create entry %s/%s %v: %v", request.Directory, request.Entry.Name, request.OExcl, err)
return fmt.Errorf("CreateEntry: %v", err)
}
if resp.Error != "" {
glog.V(1).Infof("create entry %s/%s %v: %v", request.Directory, request.Entry.Name, request.OExcl, resp.Error)
return fmt.Errorf("CreateEntry : %v", resp.Error)
}
return nil
}
func UpdateEntry(client SeaweedFilerClient, request *UpdateEntryRequest) error {
_, err := client.UpdateEntry(context.Background(), request)
if err != nil {
glog.V(1).Infof("update entry %s/%s :%v", request.Directory, request.Entry.Name, err)
return fmt.Errorf("UpdateEntry: %v", err)
}
return nil
}
func LookupEntry(client SeaweedFilerClient, request *LookupDirectoryEntryRequest) (*LookupDirectoryEntryResponse, error) {
resp, err := client.LookupDirectoryEntry(context.Background(), request)
if err != nil {
if err == ErrNotFound || strings.Contains(err.Error(), ErrNotFound.Error()) {
return nil, ErrNotFound
}
glog.V(3).Infof("read %s/%v: %v", request.Directory, request.Name, err)
return nil, fmt.Errorf("LookupEntry1: %v", err)
}
if resp.Entry == nil {
return nil, ErrNotFound
}
return resp, nil
}
var ErrNotFound = errors.New("filer: no entry is found in filer store")
func IsEmpty(event *SubscribeMetadataResponse) bool {
return event.EventNotification.NewEntry == nil && event.EventNotification.OldEntry == nil
}
func IsCreate(event *SubscribeMetadataResponse) bool {
return event.EventNotification.NewEntry != nil && event.EventNotification.OldEntry == nil
}
func IsUpdate(event *SubscribeMetadataResponse) bool {
return event.EventNotification.NewEntry != nil &&
event.EventNotification.OldEntry != nil &&
event.Directory == event.EventNotification.NewParentPath &&
event.EventNotification.NewEntry.Name == event.EventNotification.OldEntry.Name
}
func IsDelete(event *SubscribeMetadataResponse) bool {
return event.EventNotification.NewEntry == nil && event.EventNotification.OldEntry != nil
}
func IsRename(event *SubscribeMetadataResponse) bool {
return event.EventNotification.NewEntry != nil &&
event.EventNotification.OldEntry != nil &&
(event.Directory != event.EventNotification.NewParentPath ||
event.EventNotification.NewEntry.Name != event.EventNotification.OldEntry.Name)
}
var _ = ptrie.KeyProvider(&FilerConf_PathConf{})
func (fp *FilerConf_PathConf) Key() interface{} {
key, _ := proto.Marshal(fp)
return string(key)
}