+ Closer.close(imageDataInputStream);
+ Closer.flush(uploadedImage);
+ }
+ throw new RedirectException("imageBrowser.html?album=" + parent.getId());
+ }
+ }
+
+ private static Dimension getImageDimensions(Image uploadedImage) {
+ final CountDownLatch widthHeightLatch = new CountDownLatch(2);
+ final AtomicInteger finalWidth = new AtomicInteger();
+ final AtomicInteger finalHeight = new AtomicInteger();
+ ImageObserver imageObserver = new ImageObserver() {
+ @Override
+ public boolean imageUpdate(Image image, int infoFlags, int x, int y, int width, int height) {
+ if ((infoFlags & WIDTH) != 0) {
+ finalWidth.set(width);
+ widthHeightLatch.countDown();
+ }
+ if ((infoFlags & HEIGHT) != 0) {
+ finalHeight.set(width);
+ widthHeightLatch.countDown();
+ }
+ return (infoFlags & ALLBITS) != 0;
+ }
+ };
+ finalWidth.set(uploadedImage.getWidth(imageObserver));
+ finalHeight.set(uploadedImage.getHeight(imageObserver));
+ while ((finalWidth.get() == -1) || (finalHeight.get() == -1)) {
+ try {
+ widthHeightLatch.await();
+ } catch (InterruptedException ie1) {
+ logger.log(Level.WARNING, "Interrupted while waiting for latch...");
+ }
+ }
+ return new Dimension(finalWidth.get(), finalHeight.get());
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Tries to detect the MIME type of the encoded image.
+ *
+ * @param imageData
+ * The encoded image
+ * @return The MIME type of the image, or “application/octet-stream” if the
+ * image type could not be detected
+ */
+ private static String getMimeType(byte[] imageData) {
+ ByteArrayInputStream imageDataInputStream = new ByteArrayInputStream(imageData);
+ try {
+ ImageInputStream imageInputStream = ImageIO.createImageInputStream(imageDataInputStream);
+ Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(imageInputStream);
+ if (imageReaders.hasNext()) {
+ return imageReaders.next().getOriginatingProvider().getMIMETypes()[0];