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