X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;ds=inline;f=src%2Fbe%2Fnikiroo%2Futils%2FImage.java;h=4518577d640b684bee939381e02b9aa745b2d3a2;hb=9e7330d793887fe9ee378ca1413141d7761e76ca;hp=cfcaa74e2c1b8e2f1cd280f687afbfd7e8ad51bf;hpb=7b42695f536a88cfc5fed57e98687394e3c42fe9;p=fanfix.git diff --git a/src/be/nikiroo/utils/Image.java b/src/be/nikiroo/utils/Image.java deleted file mode 100644 index cfcaa74..0000000 --- a/src/be/nikiroo/utils/Image.java +++ /dev/null @@ -1,203 +0,0 @@ -package be.nikiroo.utils; - -import java.io.ByteArrayInputStream; -import java.io.Closeable; -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; - -/** - * This class represents an image data. - * - * @author niki - */ -public class Image implements Closeable { - static private File tempRoot; - static private TempFiles tmpRepository; - static private long count = 0; - static private Object lock = new Object(); - - private File data; - - /** - * Do not use -- for serialisation purposes only. - */ - @SuppressWarnings("unused") - private Image() { - } - - /** - * Create a new {@link Image} with the given data. - * - * @param data - * the data - */ - public Image(byte[] data) { - ByteArrayInputStream in = new ByteArrayInputStream(data); - try { - this.data = getTemporaryFile(); - IOUtils.write(in, this.data); - } catch (IOException e) { - throw new RuntimeException(e); - } finally { - try { - in.close(); - } catch (IOException e) { - throw new RuntimeException(e); - } - } - } - - /** - * Create a new {@link Image} from its Base64 representation. - * - * @param base64 - * the {@link Image} in Base64 format - * - * @throws IOException - * in case of I/O error - */ - public Image(String base64) throws IOException { - this(Base64.decode(base64)); - } - - /** - * Create a new {@link Image} from a stream. - * - * @param in - * the stream - * - * @throws IOException - * in case of I/O error - */ - public Image(InputStream in) throws IOException { - data = getTemporaryFile(); - IOUtils.write(in, data); - } - - /** - * Generate an {@link InputStream} for this {@link Image}. - *
- * This {@link InputStream} will (always) be a new one, and you are - * responsible for it. - *
- * Note: take care that the {@link InputStream} must not live past - * the {@link Image} life time! - * - * @return the stream - * - * @throws IOException - * in case of I/O error - */ - public InputStream newInputStream() throws IOException { - return new FileInputStream(data); - } - - /** - * Read the actual image data, as a byte array. - *
- * Note: if possible, prefer the {@link Image#newInputStream()} method, as - * it can be more efficient. - * - * @return the image data - */ - public byte[] getData() { - try { - InputStream in = newInputStream(); - try { - return IOUtils.toByteArray(in); - } finally { - in.close(); - } - } catch (IOException e) { - throw new RuntimeException(e); - } - } - - /** - * Convert the given {@link Image} object into a Base64 representation of - * the same {@link Image} object. - *
- * Note: if possible, prefer the {@link Image#newInputStream()} method, as - * it can be more efficient. - * - * @return the Base64 representation - */ - public String toBase64() { - try { - return StringUtils.base64(getData(), false); - } catch (IOException e) { - throw new RuntimeException(e); - } - } - - /** - * Closing the {@link Image} will delete the associated temporary file on - * disk. - *
- * Note that even if you don't, the program will still try to delete - * all the temporary files at JVM termination. - */ - @Override - public void close() throws IOException { - data.delete(); - synchronized (lock) { - count--; - if (count <= 0) { - count = 0; - tmpRepository.close(); - tmpRepository = null; - } - } - } - - @Override - protected void finalize() throws Throwable { - try { - close(); - } finally { - super.finalize(); - } - } - - /** - * Return a newly created temporary file to work on. - * - * @return the file - * - * @throws IOException - * in case of I/O error - */ - private File getTemporaryFile() throws IOException { - synchronized (lock) { - if (tmpRepository == null) { - tmpRepository = new TempFiles(tempRoot, "images"); - count = 0; - } - - count++; - - return tmpRepository.createTempFile("image"); - } - } - - /** - * Change the temporary root directory used by the program. - *
- * Caution: the directory will be owned by the system, all its files - * now belong to us (and will most probably be deleted). - *
- * Note: it may take some time until the new temporary root is used, we - * first need to make sure the previous one is not used anymore (i.e., we - * must reach a point where no unclosed {@link Image} remains in memory) to - * switch the temporary root. - * - * @param root - * the new temporary root, which will be owned by the - * system - */ - public static void setTemporaryFilesRoot(File root) { - tempRoot = root; - } -}