+ private static File lastLoadedFile;
+
+ private static BufferedImage lastLoadedBufferedImage;
+
+ /**
+ * Load image into {@link BufferedImage} and return it. Caches last loaded
+ * image to speed up subsequent loading attempts.
+ *
+ * @throws ImageFormatError
+ * @throws IOException
+ */
+ public static BufferedImage getBufferedImage(final File file)
+ throws ImageFormatError, IOException {
+ if (file.equals(lastLoadedFile))
+ return lastLoadedBufferedImage;
+
+ System.out.println("Loading image: " + file.getPath());
+ lastLoadedBufferedImage = ImageIO.read(file);
+ lastLoadedFile = file;
+
+ if (lastLoadedBufferedImage == null)
+ throw new ImageFormatError("File: " + file
+ + " is not a valid image.");
+
+ return lastLoadedBufferedImage;
+ }
+
+ public static File getLayoutIndexFile(final Layout layout,
+ final File directoryToIndex) {
+
+ final String indexFilePath = directoryToIndex.getAbsolutePath()
+ + "/index" + layout.getFileNameSuffix() + ".html";
+
+ return new File(indexFilePath);
+ }
+
+ public static HashSet<Layout> getLayouts() {
+ final HashSet<Layout> layouts = new HashSet<Layout>();
+ layouts.add(new MixedLayout());
+ return layouts;
+ }
+
+ public static String getStringCrcAsHex(final String input) {
+
+ // create a new CRC-calculating object
+ final CRC32 crc = new CRC32();
+
+ // loop, calculating CRC for each byte of the string
+ // There is no CRC16.update(byte[]) method.
+ for (final byte b : input.getBytes())
+ crc.update(b);
+
+ // note use crc.value, not crc.getValue()
+ final String hex = Integer.toHexString((int) crc.getValue())
+ .toUpperCase();