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package localsink
import (
"context"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/replication/repl_util"
"github.com/seaweedfs/seaweedfs/weed/replication/sink"
"github.com/seaweedfs/seaweedfs/weed/replication/source"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
"github.com/seaweedfs/seaweedfs/weed/util"
"os"
"path/filepath"
"strings"
)
type LocalSink struct {
Dir string
filerSource *source.FilerSource
isIncremental bool
}
func init() {
sink.Sinks = append(sink.Sinks, &LocalSink{})
}
func (localsink *LocalSink) SetSourceFiler(s *source.FilerSource) {
localsink.filerSource = s
}
func (localsink *LocalSink) GetName() string {
return "local"
}
func (localsink *LocalSink) isMultiPartEntry(key string) bool {
return strings.HasSuffix(key, ".part") && strings.Contains(key, "/"+s3_constants.MultipartUploadsFolder+"/")
}
func (localsink *LocalSink) initialize(dir string, isIncremental bool) error {
localsink.Dir = dir
localsink.isIncremental = isIncremental
return nil
}
func (localsink *LocalSink) Initialize(configuration util.Configuration, prefix string) error {
dir := configuration.GetString(prefix + "directory")
isIncremental := configuration.GetBool(prefix + "is_incremental")
glog.V(4).Infof("sink.local.directory: %v", dir)
return localsink.initialize(dir, isIncremental)
}
func (localsink *LocalSink) GetSinkToDirectory() string {
return localsink.Dir
}
func (localsink *LocalSink) IsIncremental() bool {
return localsink.isIncremental
}
func (localsink *LocalSink) DeleteEntry(key string, isDirectory, deleteIncludeChunks bool, signatures []int32) error {
if localsink.isMultiPartEntry(key) {
return nil
}
glog.V(4).Infof("Delete Entry key: %s", key)
if err := os.Remove(key); err != nil {
glog.V(0).Infof("remove entry key %s: %s", key, err)
}
return nil
}
func (localsink *LocalSink) CreateEntry(key string, entry *filer_pb.Entry, signatures []int32) error {
if entry.IsDirectory || localsink.isMultiPartEntry(key) {
return nil
}
glog.V(4).Infof("Create Entry key: %s", key)
totalSize := filer.FileSize(entry)
chunkViews := filer.ViewFromChunks(context.Background(), localsink.filerSource.LookupFileId, entry.GetChunks(), 0, int64(totalSize))
dir := filepath.Dir(key)
if _, err := os.Stat(dir); os.IsNotExist(err) {
glog.V(4).Infof("Create Directory key: %s", dir)
if err = os.MkdirAll(dir, 0755); err != nil {
return err
}
}
if entry.IsDirectory {
return os.Mkdir(key, os.FileMode(entry.Attributes.FileMode))
}
mode := os.FileMode(entry.Attributes.FileMode)
dstFile, err := os.OpenFile(util.ToShortFileName(key), os.O_RDWR|os.O_CREATE|os.O_TRUNC, mode)
if err != nil {
return err
}
defer dstFile.Close()
fi, err := dstFile.Stat()
if err != nil {
return err
}
if fi.Mode() != mode {
glog.V(4).Infof("Modify file mode: %o -> %o", fi.Mode(), mode)
if err := dstFile.Chmod(mode); err != nil {
return err
}
}
writeFunc := func(data []byte) error {
_, writeErr := dstFile.Write(data)
return writeErr
}
if len(entry.Content) > 0 {
return writeFunc(entry.Content)
}
if err := repl_util.CopyFromChunkViews(chunkViews, localsink.filerSource, writeFunc); err != nil {
return err
}
return nil
}
func (localsink *LocalSink) UpdateEntry(key string, oldEntry *filer_pb.Entry, newParentPath string, newEntry *filer_pb.Entry, deleteIncludeChunks bool, signatures []int32) (foundExistingEntry bool, err error) {
if localsink.isMultiPartEntry(key) {
return true, nil
}
glog.V(4).Infof("Update Entry key: %s", key)
// do delete and create
foundExistingEntry = util.FileExists(key)
err = localsink.CreateEntry(key, newEntry, signatures)
return
}
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