Golang swift.TimeToFloatString函數代碼示例

// SetModTime sets the modification time of the local fs object
func (o *Object) SetModTime(modTime time.Time) error {
	err := o.readMetaData()
	if err != nil {
		return err
	}
	o.meta[metaMtime] = aws.String(swift.TimeToFloatString(modTime))

	if o.bytes >= maxSizeForCopy {
		fs.Debug(o, "SetModTime is unsupported for objects bigger than %v bytes", fs.SizeSuffix(maxSizeForCopy))
		return nil
	}

	// Guess the content type
	contentType := fs.MimeType(o)

	// Copy the object to itself to update the metadata
	key := o.fs.root + o.remote
	sourceKey := o.fs.bucket + "/" + key
	directive := s3.MetadataDirectiveReplace // replace metadata with that passed in
	req := s3.CopyObjectInput{
		Bucket:            &o.fs.bucket,
		ACL:               &o.fs.perm,
		Key:               &key,
		ContentType:       &contentType,
		CopySource:        aws.String(url.QueryEscape(sourceKey)),
		Metadata:          o.meta,
		MetadataDirective: &directive,
	}
	_, err = o.fs.c.CopyObject(&req)
	return err
}

// updateChunks updates the existing object using chunks to a separate
// container.  It returns a string which prefixes current segments.
func (o *Object) updateChunks(in io.Reader, headers swift.Headers, size int64) (string, error) {
	// Create the segmentsContainer if it doesn't exist
	err := o.fs.c.ContainerCreate(o.fs.segmentsContainer, nil)
	if err != nil {
		return "", err
	}
	// Upload the chunks
	left := size
	i := 0
	uniquePrefix := fmt.Sprintf("%s/%d", swift.TimeToFloatString(time.Now()), size)
	segmentsPath := fmt.Sprintf("%s%s/%s", o.fs.root, o.remote, uniquePrefix)
	for left > 0 {
		n := min(left, int64(chunkSize))
		headers["Content-Length"] = strconv.FormatInt(n, 10) // set Content-Length as we know it
		segmentReader := io.LimitReader(in, n)
		segmentPath := fmt.Sprintf("%s/%08d", segmentsPath, i)
		fs.Debug(o, "Uploading segment file %q into %q", segmentPath, o.fs.segmentsContainer)
		_, err := o.fs.c.ObjectPut(o.fs.segmentsContainer, segmentPath, segmentReader, true, "", "", headers)
		if err != nil {
			return "", err
		}
		left -= n
		i++
	}
	// Upload the manifest
	headers["X-Object-Manifest"] = fmt.Sprintf("%s/%s", o.fs.segmentsContainer, segmentsPath)
	headers["Content-Length"] = "0" // set Content-Length as we know it
	emptyReader := bytes.NewReader(nil)
	manifestName := o.fs.root + o.remote
	_, err = o.fs.c.ObjectPut(o.fs.container, manifestName, emptyReader, true, "", "", headers)
	return uniquePrefix + "/", err
}

// SetModTime sets the modification time of the local fs object
func (o *FsObjectS3) SetModTime(modTime time.Time) {
	err := o.readMetaData()
	if err != nil {
		fs.Stats.Error()
		fs.ErrorLog(o, "Failed to read metadata: %s", err)
		return
	}
	o.meta[metaMtime] = aws.String(swift.TimeToFloatString(modTime))

	// Copy the object to itself to update the metadata
	key := o.s3.root + o.remote
	sourceKey := o.s3.bucket + "/" + key
	directive := s3.MetadataDirectiveReplace // replace metadata with that passed in
	req := s3.CopyObjectInput{
		Bucket:            &o.s3.bucket,
		ACL:               &o.s3.perm,
		Key:               &key,
		CopySource:        &sourceKey,
		Metadata:          o.meta,
		MetadataDirective: &directive,
	}
	_, err = o.s3.c.CopyObject(&req)
	if err != nil {
		fs.Stats.Error()
		fs.ErrorLog(o, "Failed to update remote mtime: %s", err)
	}
}

// Update the Object from in with modTime and size
func (o *Object) Update(in io.Reader, modTime time.Time, size int64) error {
	uploader := s3manager.NewUploader(o.fs.ses, func(u *s3manager.Uploader) {
		u.Concurrency = 2
		u.LeavePartsOnError = false
		u.S3 = o.fs.c
	})

	// Set the mtime in the meta data
	metadata := map[string]*string{
		metaMtime: aws.String(swift.TimeToFloatString(modTime)),
	}

	// Guess the content type
	contentType := fs.MimeType(o)

	key := o.fs.root + o.remote
	req := s3manager.UploadInput{
		Bucket:      &o.fs.bucket,
		ACL:         &o.fs.perm,
		Key:         &key,
		Body:        in,
		ContentType: &contentType,
		Metadata:    metadata,
		//ContentLength: &size,
	}
	_, err := uploader.Upload(&req)
	if err != nil {
		return err
	}

	// Read the metadata from the newly created object
	o.meta = nil // wipe old metadata
	err = o.readMetaData()
	return err
}

// SetModTime sets the modification time of the local fs object
func (o *Object) SetModTime(modTime time.Time) {
	err := o.readMetaData()
	if err != nil {
		fs.Stats.Error()
		fs.ErrorLog(o, "Failed to read metadata: %s", err)
		return
	}
	o.meta[metaMtime] = aws.String(swift.TimeToFloatString(modTime))

	// Guess the content type
	contentType := fs.MimeType(o)

	// Copy the object to itself to update the metadata
	key := o.fs.root + o.remote
	sourceKey := o.fs.bucket + "/" + key
	directive := s3.MetadataDirectiveReplace // replace metadata with that passed in
	req := s3.CopyObjectInput{
		Bucket:            &o.fs.bucket,
		ACL:               &o.fs.perm,
		Key:               &key,
		ContentType:       &contentType,
		CopySource:        aws.String(url.QueryEscape(sourceKey)),
		Metadata:          o.meta,
		MetadataDirective: &directive,
	}
	_, err = o.fs.c.CopyObject(&req)
	if err != nil {
		fs.Stats.Error()
		fs.ErrorLog(o, "Failed to update remote mtime: %s", err)
	}
}

// Update the Object from in with modTime and size
func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
	modTime := src.ModTime()

	uploader := s3manager.NewUploader(o.fs.ses, func(u *s3manager.Uploader) {
		u.Concurrency = 2
		u.LeavePartsOnError = false
		u.S3 = o.fs.c
		u.PartSize = s3manager.MinUploadPartSize
		size := src.Size()

		// Adjust PartSize until the number of parts is small enough.
		if size/u.PartSize >= s3manager.MaxUploadParts {
			// Calculate partition size rounded up to the nearest MB
			u.PartSize = (((size / s3manager.MaxUploadParts) >> 20) + 1) << 20
		}
	})

	// Set the mtime in the meta data
	metadata := map[string]*string{
		metaMtime: aws.String(swift.TimeToFloatString(modTime)),
	}

	// Guess the content type
	mimeType := fs.MimeType(src)

	key := o.fs.root + o.remote
	req := s3manager.UploadInput{
		Bucket:      &o.fs.bucket,
		ACL:         &o.fs.acl,
		Key:         &key,
		Body:        in,
		ContentType: &mimeType,
		Metadata:    metadata,
		//ContentLength: &size,
	}
	if o.fs.sse != "" {
		req.ServerSideEncryption = &o.fs.sse
	}
	if o.fs.storageClass != "" {
		req.StorageClass = &o.fs.storageClass
	}
	_, err := uploader.Upload(&req)
	if err != nil {
		return err
	}

	// Read the metadata from the newly created object
	o.meta = nil // wipe old metadata
	err = o.readMetaData()
	return err
}

// Sets the modification time of the local fs object
func (o *FsObjectS3) SetModTime(modTime time.Time) {
	err := o.readMetaData()
	if err != nil {
		fs.Stats.Error()
		fs.Log(o, "Failed to read metadata: %s", err)
		return
	}
	o.meta[metaMtime] = swift.TimeToFloatString(modTime)
	_, err = o.s3.b.Update(o.s3.root+o.remote, o.s3.perm, o.meta)
	if err != nil {
		fs.Stats.Error()
		fs.Log(o, "Failed to update remote mtime: %s", err)
	}
}

// Update the Object from in with modTime and size
func (o *FsObjectS3) Update(in io.Reader, modTime time.Time, size int64) error {
	// Set the mtime in the headers
	headers := s3.Headers{
		metaMtime: swift.TimeToFloatString(modTime),
	}

	_, err := o.s3.b.PutReaderHeaders(o.s3.root+o.remote, in, size, fs.MimeType(o), o.s3.perm, headers)
	if err != nil {
		return err
	}
	// Read the metadata from the newly created object
	o.meta = nil // wipe old metadata
	err = o.readMetaData()
	return err
}

// Update the Object from in with modTime and size
func (o *FsObjectS3) Update(in io.Reader, modTime time.Time, size int64) error {
	opts := s3manager.UploadOptions{
		// PartSize:          64 * 1024 * 1024, use default
		Concurrency:       2, // limit concurrency
		LeavePartsOnError: false,
		S3:                o.s3.c,
	}
	uploader := s3manager.NewUploader(&opts)

	// Set the mtime in the meta data
	metadata := map[string]*string{
		metaMtime: aws.String(swift.TimeToFloatString(modTime)),
	}

	// Guess the content type
	contentType := fs.MimeType(o)

	key := o.s3.root + o.remote
	req := s3manager.UploadInput{
		Bucket:      &o.s3.bucket,
		ACL:         &o.s3.perm,
		Key:         &key,
		Body:        in,
		ContentType: &contentType,
		Metadata:    metadata,
		//ContentLength: &size,
	}
	_, err := uploader.Upload(&req)
	if err != nil {
		return err
	}

	// Read the metadata from the newly created object
	o.meta = nil // wipe old metadata
	err = o.readMetaData()
	return err
}