Examples of javax.imageio.stream.MemoryCacheImageInputStream

javax.imageio.stream.MemoryCacheImageInputStream
An implementation of ImageInputStream that gets its input from a regular InputStream. A memory buffer is used to cache at least the data between the discard position and the current read position.
In general, it is preferable to use a FileCacheImageInputStream when reading from a regular InputStream. This class is provided for cases where it is not possible to create a writable temporary file.


  private IIOMetadata getEXIFMetadata(final byte[] bytes) throws IOException {
    Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName(ImageType.TIFF.name().toLowerCase());
    if (readers.hasNext()) {
      ImageReader reader = readers.next();
      ImageInputStream wrapper = new MemoryCacheImageInputStream(new ByteArrayInputStream(bytes, JAIExifReader.SEEK_BYTES, bytes.length - JAIExifReader.SEEK_BYTES));
      reader.setInput(wrapper, true, false);


      IIOMetadata metadata = reader.getImageMetadata(0);


      reader.dispose();

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     */
    private BufferedImage load(final String filename)
    {
      try
      {
        final BufferedImage loadedImage = ImageIO.read(new MemoryCacheImageInputStream(
          KittenCaptchaPanel.class.getResourceAsStream(filename + ".png")));
        final BufferedImage image = new BufferedImage(loadedImage.getWidth(),
          loadedImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
        final Graphics2D graphics = image.createGraphics();
        graphics.drawImage(loadedImage, 0, 0, null);

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   */
  private static BufferedImage load(final String filename)
  {
    try
    {
      return ImageIO.read(new MemoryCacheImageInputStream(
        KittenCaptchaPanel.class.getResourceAsStream(filename)));
    }
    catch (IOException e)
    {
      e.printStackTrace();

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   */
  private static BufferedImage load(final String filename)
  {
    try
    {
      return ImageIO.read(new MemoryCacheImageInputStream(
        KittenCaptchaPanel.class.getResourceAsStream(filename)));
    }
    catch (IOException e)
    {
      e.printStackTrace();

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     */
    private BufferedImage load(final String filename)
    {
      try
      {
        final BufferedImage loadedImage = ImageIO.read(new MemoryCacheImageInputStream(
          KittenCaptchaPanel.class.getResourceAsStream(filename + ".png")));
        final BufferedImage image = new BufferedImage(loadedImage.getWidth(),
          loadedImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
        final Graphics2D graphics = image.createGraphics();
        graphics.drawImage(loadedImage, 0, 0, null);

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   */
  private static BufferedImage load(final String filename)
  {
    try
    {
      return ImageIO.read(new MemoryCacheImageInputStream(
        KittenCaptchaPanel.class.getResourceAsStream(filename)));
    }
    catch (IOException e)
    {
      LOG.error("Error loading image", e);

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     */
    private BufferedImage load(final String filename)
    {
      try
      {
        final BufferedImage loadedImage = ImageIO.read(new MemoryCacheImageInputStream(
          KittenCaptchaPanel.class.getResourceAsStream(filename + ".png")));
        final BufferedImage image = new BufferedImage(loadedImage.getWidth(),
          loadedImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
        final Graphics2D graphics = image.createGraphics();
        graphics.drawImage(loadedImage, 0, 0, null);

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   */
  private static BufferedImage load(final String filename)
  {
    try
    {
      return ImageIO.read(new MemoryCacheImageInputStream(
        KittenCaptchaPanel.class.getResourceAsStream(filename)));
    }
    catch (IOException e)
    {
      e.printStackTrace();

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     */
    private BufferedImage load(final String filename)
    {
      try
      {
        final BufferedImage loadedImage = ImageIO.read(new MemoryCacheImageInputStream(
          KittenCaptchaPanel.class.getResourceAsStream(filename + ".png")));
        final BufferedImage image = new BufferedImage(loadedImage.getWidth(),
          loadedImage.getHeight(), BufferedImage.TYPE_INT_ARGB);
        final Graphics2D graphics = image.createGraphics();
        graphics.drawImage(loadedImage, 0, 0, null);

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            };


            input = new SequenceInputStream(new ByteArrayInputStream(fakeEmptyExif), input);


            try {
                MemoryCacheImageInputStream stream = new MemoryCacheImageInputStream(input);


                try {
                    return readJPEGThumbnail(reader, stream);
                }
                finally {
                    stream.close();
                }
            }
            finally {
                input.close();
            }

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