BufferedImage, same as ImageIO.read() does.
- *
- * JPEG images with EXIF metadata are rotated according to Orientation tag.
- *
- * @param imageFile a File to read from.
- */
- private static BufferedImage readImageWithOrientation(File imageFile)
- throws IOException {
-
- BufferedImage image = ImageIO.read(imageFile);
- if (!FilenameUtils.getExtension(imageFile.getName()).equals("jpg")) {
- return image;
- }
-
- try {
- ImageMetadata metadata = Imaging.getMetadata(imageFile);
-
- if (metadata instanceof JpegImageMetadata) {
- JpegImageMetadata jpegMetadata = (JpegImageMetadata) metadata;
- TiffField orientationField = jpegMetadata.findEXIFValue(TiffTagConstants.TIFF_TAG_ORIENTATION);
-
- if (orientationField != null) {
- int orientation = orientationField.getIntValue();
- switch (orientation) {
- case TiffTagConstants.ORIENTATION_VALUE_ROTATE_90_CW:
- image = Scalr.rotate(image, Rotation.CW_90);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_ROTATE_180:
- image = Scalr.rotate(image, Rotation.CW_180);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_ROTATE_270_CW:
- image = Scalr.rotate(image, Rotation.CW_270);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL:
- image = Scalr.rotate(image, Rotation.FLIP_HORZ);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_MIRROR_VERTICAL:
- image = Scalr.rotate(image, Rotation.FLIP_VERT);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL_AND_ROTATE_90_CW:
- image = Scalr.rotate(Scalr.rotate(image, Rotation.FLIP_HORZ), Rotation.CW_90);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL_AND_ROTATE_270_CW:
- image = Scalr.rotate(Scalr.rotate(image, Rotation.FLIP_HORZ), Rotation.CW_270);
- break;
- case TiffTagConstants.ORIENTATION_VALUE_HORIZONTAL_NORMAL:
- default:
- // do nothing
- break;
- }
- }
- }
- } catch (ImageReadException e) {
- // failed to read metadata.
- // nothing to do here, return image as is.
- }
-
- return image;
- }
-
- /**
- * Move attached image from temp folder to image folder.
- * Create preview images in corresponding folders.
- *
- * @param tempFilename Name of the image file in the temp folder.
- * @param outputFilename Name that will be used in the image folder.
- * @param tmpDir Path string for the temp folder.
- * @param imgDir Path string for the image folder.
- */
- public static void saveImageWithPreviews(String tempFilename, String outputFilename, String tmpDir, String imgDir)
- throws IOException {
- String ext = FilenameUtils.getExtension(outputFilename);
-
- Path outputImagePath = Paths.get(imgDir, "p", outputFilename);
- Files.move(Paths.get(tmpDir, tempFilename), outputImagePath);
- BufferedImage originalImage = readImageWithOrientation(outputImagePath.toFile());
-
- int width = originalImage.getWidth();
- int height = originalImage.getHeight();
- int maxDimension = (width > height) ? width : height;
- BufferedImage image1024 = (maxDimension > 1024) ? Scalr.resize(originalImage, 1024) : originalImage;
- BufferedImage image0512 = (maxDimension > 512) ? Scalr.resize(originalImage, 512) : originalImage;
- BufferedImage image0160 = (maxDimension > 160) ? Scalr.resize(originalImage, 160) : originalImage;
- ImageIO.write(image1024, ext, Paths.get(imgDir, "photos-1024", outputFilename).toFile());
- ImageIO.write(image0512, ext, Paths.get(imgDir, "photos-512", outputFilename).toFile());
- ImageIO.write(image0160, ext, Paths.get(imgDir, "ps", outputFilename).toFile());
- }
-
- /**
- * Save new avatar in all required sizes.
- *
- * @param tempFilename Name of the image file in the temp folder.
- * @param uid User id that is used to build image file names.
- * @param tmpDir Path string for the temp folder.
- * @param imgDir Path string for the image folder.
- */
- public static void saveAvatar(String tempFilename, int uid, String tmpDir, String imgDir)
- throws IOException {
- String ext = FilenameUtils.getExtension(tempFilename);
- String originalName = String.format("%s.%s", uid, ext);
- Path originalPath = Paths.get(imgDir, "ao", originalName);
- Files.move(Paths.get(tmpDir, tempFilename), originalPath, StandardCopyOption.REPLACE_EXISTING);
- BufferedImage originalImage = ImageIO.read(originalPath.toFile());
-
- String targetExt = "png";
- String targetName = String.format("%s.%s", uid, targetExt);
- ImageIO.write(Scalr.resize(originalImage, 96), targetExt, Paths.get(imgDir, "a", targetName).toFile());
- ImageIO.write(Scalr.resize(originalImage, 32), targetExt, Paths.get(imgDir, "as", targetName).toFile());
- }
-
- public static Integer getImageHeight(File imageFile) throws IOException, ImageReadException {
- if (imageFile.exists()) {
- ImageInfo info = Imaging.getImageInfo(imageFile);
- return info.getHeight();
- }
- return 0;
- }
- public static Integer getImageWidth(File imageFile) throws IOException, ImageReadException {
- if (imageFile.exists()) {
- ImageInfo info = Imaging.getImageInfo(imageFile);
- return info.getWidth();
- }
- return 0;
- }
-}
\ No newline at end of file
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