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Golang File.GetName方法代碼示例

本文整理匯總了Golang中github.com/app-kit/go-appkit.File.GetName方法的典型用法代碼示例。如果您正苦於以下問題:Golang File.GetName方法的具體用法?Golang File.GetName怎麽用?Golang File.GetName使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在github.com/app-kit/go-appkit.File的用法示例。


在下文中一共展示了File.GetName方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: getImageReader

func (r *FilesResource) getImageReader(registry kit.Registry, tmpDir string, file kit.File, width, height int64, filters []string, ip string) (reader kit.ReadSeekerCloser, size int64, err apperror.Error) {
	if width == 0 && height == 0 && len(filters) == 0 {
		reader, err = file.Reader()
		return
	}

	// Dimensions specified.
	// Check if the thumbnail was already created.
	// If so, serve it. Otherwise, create it first.

	if (width == 0 || height == 0) && (file.GetWidth() == 0 || file.GetHeight() == 0) {
		err = &apperror.Err{
			Code:    "image_dimensions_not_determined",
			Message: fmt.Sprintf("The file with id %v does not have width/height", file.GetId()),
		}
		return
	}

	if width < 0 || height < 0 {
		err = apperror.New("invalid_dimensions")
		return
	}

	// If either height or width is 0, determine proper values to presserve aspect ratio.
	if width == 0 {
		ratio := float64(file.GetWidth()) / float64(file.GetHeight())
		width = int64(float64(height) * ratio)
	} else if height == 0 {
		ratio := float64(file.GetHeight()) / float64(file.GetWidth())
		height = int64(float64(width) * ratio)
	}

	maxWidth := registry.Config().UInt("files.thumbGenerator.maxWidth", 2000)
	maxHeight := registry.Config().UInt("files.thumbGenerator.maxHeight", 2000)

	if width > int64(maxWidth) || height > int64(maxHeight) {
		err = &apperror.Err{
			Code:    "dimensions_exceed_maximum_limits",
			Message: "The specified dimensions exceed the maximum limits",
		}
		return
	}

	thumbId := fmt.Sprintf("%v_%v_%v_%v_%v_%v.%v",
		file.GetId(),
		file.GetBucket(),
		file.GetName(),
		strconv.FormatInt(width, 10),
		strconv.FormatInt(height, 10),
		strings.Replace(strings.Join(filters, "_"), ":", "_", -1),
		"jpeg")

	if ok, _ := file.GetBackend().HasFileById("thumbs", thumbId); !ok {
		var channel chan bool
		channel, err = r.thumbnailRateLimiter.Start(ip)
		if err != nil {
			return
		}
		if channel != nil {
			<-channel
		}

		// Thumb does not exist yet, so create it.
		reader, err = file.Reader()
		if err != nil {
			return
		}
		defer reader.Close()

		img, _, err2 := image.Decode(reader)
		if err2 != nil {
			err = apperror.Wrap(err2, "image_decode_error")
			return
		}

		var giftFilters []gift.Filter

		if !(height == 0 && width == 0) {
			giftFilters = append(giftFilters, gift.ResizeToFill(int(width), int(height), gift.LanczosResampling, gift.CenterAnchor))
		}

		for _, filter := range filters {
			if filter == "" {
				continue
			}

			parts := strings.Split(filter, ":")

			if len(parts) > 1 {
				filter = parts[0]
			}

			switch filter {
			case "sepia":
				n := float32(100)

				if len(parts) == 2 {
					x, err2 := strconv.ParseFloat(parts[1], 64)
					if err2 == nil {
						n = float32(x)
//.........這裏部分代碼省略.........
開發者ID:app-kit,項目名稱:go-appkit,代碼行數:101,代碼來源:resource.go


注:本文中的github.com/app-kit/go-appkit.File.GetName方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。