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package filer2
import (
"errors"
"os"
"time"
"path/filepath"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"strings"
)
type FullPath string
func NewFullPath(dir, name string) FullPath {
if strings.HasSuffix(dir, "/") {
return FullPath(dir + name)
}
return FullPath(dir + "/" + name)
}
func (fp FullPath) DirAndName() (string, string) {
dir, name := filepath.Split(string(fp))
if dir == "/" {
return dir, name
}
if len(dir) < 1 {
return "/", ""
}
return dir[:len(dir)-1], name
}
func (fp FullPath) Name() (string) {
_, name := filepath.Split(string(fp))
return name
}
type Attr struct {
Mtime time.Time // time of last modification
Crtime time.Time // time of creation (OS X only)
Mode os.FileMode // file mode
Uid uint32 // owner uid
Gid uint32 // group gid
}
func (attr Attr) IsDirectory() (bool) {
return attr.Mode&os.ModeDir > 0
}
type Entry struct {
FullPath
Attr
// the following is for files
Chunks []*filer_pb.FileChunk `json:"chunks,omitempty"`
}
func (entry Entry) Size() uint64 {
return TotalSize(entry.Chunks)
}
func (entry Entry) Timestamp() time.Time {
if entry.IsDirectory() {
return entry.Crtime
} else {
return entry.Mtime
}
}
var ErrNotFound = errors.New("filer: no entry is found in filer store")
type FilerStore interface {
InsertEntry(*Entry) (error)
UpdateEntry(*Entry) (err error)
FindEntry(FullPath) (found bool, entry *Entry, err error)
DeleteEntry(FullPath) (fileEntry *Entry, err error)
ListDirectoryEntries(dirPath FullPath, startFileName string, inclusive bool, limit int) ([]*Entry, error)
}
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