javax.imageio.metadata.IIOMetadataNode Java Examples

/**
 * Returns a tree of DOM nodes representing this object and any
 * subordinate JFXX extension or ICC Profile segments.
 */
IIOMetadataNode getNativeNode() {
    IIOMetadataNode node = new IIOMetadataNode("app0JFIF");
    node.setAttribute("majorVersion", Integer.toString(majorVersion));
    node.setAttribute("minorVersion", Integer.toString(minorVersion));
    node.setAttribute("resUnits", Integer.toString(resUnits));
    node.setAttribute("Xdensity", Integer.toString(Xdensity));
    node.setAttribute("Ydensity", Integer.toString(Ydensity));
    node.setAttribute("thumbWidth", Integer.toString(thumbWidth));
    node.setAttribute("thumbHeight", Integer.toString(thumbHeight));
    if (!extSegments.isEmpty()) {
        IIOMetadataNode JFXXnode = new IIOMetadataNode("JFXX");
        node.appendChild(JFXXnode);
        for (Iterator iter = extSegments.iterator(); iter.hasNext();) {
            JFIFExtensionMarkerSegment seg =
                (JFIFExtensionMarkerSegment) iter.next();
            JFXXnode.appendChild(seg.getNativeNode());
        }
    }
    if (iccSegment != null) {
        node.appendChild(iccSegment.getNativeNode());
    }

    return node;
}
 

protected IIOMetadataNode getStandardDataNode() {
    IIOMetadataNode node = new IIOMetadataNode("Data");

    String bits = "";
    if (bitsPerPixel == 24)
        bits = "8 8 8 ";
    else if (bitsPerPixel == 16 || bitsPerPixel == 32) {
        bits = "" + countBits(redMask) + " " + countBits(greenMask) +
              countBits(blueMask) + "" + countBits(alphaMask);
    }

    IIOMetadataNode subNode = new IIOMetadataNode("BitsPerSample");
    subNode.setAttribute("value", bits);
    node.appendChild(subNode);

    return node;
}
 

private static ITXtTest readFrom(File f) {
    try (ImageInputStream imageInputStream =
            ImageIO.createImageInputStream(f)) {

        ImageReader r = ImageIO.getImageReaders(imageInputStream).next();
        r.setInput(imageInputStream);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
 

/** Creates an <code>IIOMetadataNode</code> from this
   *  box.  The format of this node is defined in the XML dtd and xsd
   *  for the JP2 image file.
   *
   *  This method is designed for the types of boxes whose XML tree
   *  only has 2 levels.
   */
  protected IIOMetadataNode getNativeNodeForSimpleBox() {
      try {
          Method m = this.getClass().getMethod("getElementNames",
                                               (Class[])null);
          String[] elementNames = (String[])m.invoke(null, (Object[])null);

          IIOMetadataNode node = new IIOMetadataNode(Box.getName(getType()));
          setDefaultAttributes(node);
          for (int i = 0; i < elementNames.length; i++) {
              IIOMetadataNode child = new IIOMetadataNode(elementNames[i]);
              m = this.getClass().getMethod("get" + elementNames[i],
                                            (Class[])null);
Object obj = m.invoke(this, (Object[])null);
              child.setUserObject(obj);
child.setNodeValue(ImageUtil.convertObjectToString(obj));
              node.appendChild(child);
          }
          return node;
      } catch (Exception e) {
          throw new IllegalArgumentException(I18N.getString("Box0"));
      }
  }
 

public static void test1() {
    IIOMetadataNode parent = new IIOMetadataNode("parent");
    IIOMetadataNode elem   = new IIOMetadataNode("elem");

    MyAttrNode attrNode = new MyAttrNode("name", "value");
    elem.setAttributeNode(attrNode);
    attrNode.setOwnerElement(elem);

    try {
        parent.setAttributeNode(attrNode);
    } catch (DOMException e) {
        if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
            throw new RuntimeException("Test 1 failed: " +
                                       "Invalid exception code: " +
                                       e.code);
        }
        return;
    }

    throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
 

private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
 

public static void test1() {
    IIOMetadataNode parent = new IIOMetadataNode("parent");
    IIOMetadataNode elem   = new IIOMetadataNode("elem");

    MyAttrNode attrNode = new MyAttrNode("name", "value");
    elem.setAttributeNode(attrNode);
    attrNode.setOwnerElement(elem);

    try {
        parent.setAttributeNode(attrNode);
    } catch (DOMException e) {
        if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
            throw new RuntimeException("Test 1 failed: " +
                                       "Invalid exception code: " +
                                       e.code);
        }
        return;
    }

    throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
 

public static void test1() {
    IIOMetadataNode parent = new IIOMetadataNode("parent");
    IIOMetadataNode elem   = new IIOMetadataNode("elem");

    MyAttrNode attrNode = new MyAttrNode("name", "value");
    elem.setAttributeNode(attrNode);
    attrNode.setOwnerElement(elem);

    try {
        parent.setAttributeNode(attrNode);
    } catch (DOMException e) {
        if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
            throw new RuntimeException("Test 1 failed: " +
                                       "Invalid exception code: " +
                                       e.code);
        }
        return;
    }

    throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
 

private IIOMetadataNode gethISTNode(BufferedImage bi) {
    IndexColorModel icm = (IndexColorModel)bi.getColorModel();
    int mapSize = icm.getMapSize();

    int[] hist = new int[mapSize];
    Arrays.fill(hist, 0);

    Raster r = bi.getData();
    for (int y = 0; y < bi.getHeight(); y++) {
        for (int x = 0; x < bi.getWidth(); x++) {
            int s = r.getSample(x, y, 0);
            hist[s] ++;
        }
    }

    IIOMetadataNode hIST = new IIOMetadataNode("hIST");
    for (int i = 0; i < hist.length; i++) {
        IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
        n.setAttribute("index", "" + i);
        n.setAttribute("value", "" + hist[i]);
        hIST.appendChild(n);
    }

    return hIST;
}
 

public static IIOMetadata getWriterMeta(ImageAttributes attributes, BufferedImage image,
        ImageWriter writer, ImageWriteParam param) {
    try {
        BMPMetadata metaData = (BMPMetadata) writer.getDefaultImageMetadata(new ImageTypeSpecifier(image), param);
        if (metaData != null && !metaData.isReadOnly() && attributes != null && attributes.getDensity() > 0) {
            String format = metaData.getNativeMetadataFormatName(); // "com_sun_media_imageio_plugins_bmp_image_1.0"
            int dpm = dpi2dpm(attributes.getDensity());
            // If set nodes' attributes in normal way, error will be popped about "Meta Data is read only"
            // By setting its fields, the class will write resolution data under standard format "javax_imageio_1.0"
            // but leave itself's section as empty~ Anyway, the data is record.
            metaData.xPixelsPerMeter = dpm;
            metaData.yPixelsPerMeter = dpm;
            metaData.palette = null; // Error will happen if not define this for Black-white bmp.
            IIOMetadataNode tree = (IIOMetadataNode) metaData.getAsTree(format);
            metaData.mergeTree(format, tree);
        }
        return metaData;
    } catch (Exception e) {
        logger.error(e.toString());
        return null;
    }
}
 

protected IIOMetadataNode getStandardChromaNode() {

        if ((palette != null) && (paletteSize > 0)) {
            IIOMetadataNode node = new IIOMetadataNode("Chroma");
            IIOMetadataNode subNode = new IIOMetadataNode("Palette");
            int numComps = palette.length / paletteSize;
            subNode.setAttribute("value", "" + numComps);

            for (int i = 0, j = 0; i < paletteSize; i++) {
                IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
                subNode1.setAttribute("index", ""+i);
                subNode1.setAttribute("red", "" + palette[j++]);
                subNode1.setAttribute("green", "" + palette[j++]);
                subNode1.setAttribute("blue", "" + palette[j++]);
                if (numComps == 4 && palette[j] != 0)
                    subNode1.setAttribute("alpha", "" + palette[j++]);
                subNode.appendChild(subNode1);
            }
            node.appendChild(subNode);
            return node;
        }

        return null;
    }
 

public static void test1() {
    IIOMetadataNode parent = new IIOMetadataNode("parent");
    IIOMetadataNode elem   = new IIOMetadataNode("elem");

    MyAttrNode attrNode = new MyAttrNode("name", "value");
    elem.setAttributeNode(attrNode);
    attrNode.setOwnerElement(elem);

    try {
        parent.setAttributeNode(attrNode);
    } catch (DOMException e) {
        if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
            throw new RuntimeException("Test 1 failed: " +
                                       "Invalid exception code: " +
                                       e.code);
        }
        return;
    }

    throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
 

private IIOMetadataNode gethISTNode(BufferedImage bi) {
    IndexColorModel icm = (IndexColorModel)bi.getColorModel();
    int mapSize = icm.getMapSize();

    int[] hist = new int[mapSize];
    Arrays.fill(hist, 0);

    Raster r = bi.getData();
    for (int y = 0; y < bi.getHeight(); y++) {
        for (int x = 0; x < bi.getWidth(); x++) {
            int s = r.getSample(x, y, 0);
            hist[s] ++;
        }
    }

    IIOMetadataNode hIST = new IIOMetadataNode("hIST");
    for (int i = 0; i < hist.length; i++) {
        IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
        n.setAttribute("index", "" + i);
        n.setAttribute("value", "" + hist[i]);
        hIST.appendChild(n);
    }

    return hIST;
}
 

protected IIOMetadataNode getStandardChromaNode() {

        if ((palette != null) && (paletteSize > 0)) {
            IIOMetadataNode node = new IIOMetadataNode("Chroma");
            IIOMetadataNode subNode = new IIOMetadataNode("Palette");
            int numComps = palette.length / paletteSize;
            subNode.setAttribute("value", "" + numComps);

            for (int i = 0, j = 0; i < paletteSize; i++) {
                IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
                subNode1.setAttribute("index", ""+i);
                subNode1.setAttribute("red", "" + palette[j++]);
                subNode1.setAttribute("green", "" + palette[j++]);
                subNode1.setAttribute("blue", "" + palette[j++]);
                if (numComps == 4 && palette[j] != 0)
                    subNode1.setAttribute("alpha", "" + palette[j++]);
                subNode.appendChild(subNode1);
            }
            node.appendChild(subNode);
            return node;
        }

        return null;
    }
 

public static void test1() {
    IIOMetadataNode parent = new IIOMetadataNode("parent");
    IIOMetadataNode elem   = new IIOMetadataNode("elem");

    MyAttrNode attrNode = new MyAttrNode("name", "value");
    elem.setAttributeNode(attrNode);
    attrNode.setOwnerElement(elem);

    try {
        parent.setAttributeNode(attrNode);
    } catch (DOMException e) {
        if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
            throw new RuntimeException("Test 1 failed: " +
                                       "Invalid exception code: " +
                                       e.code);
        }
        return;
    }

    throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
 

private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
 

private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
 

/**
 * Returns a tree of DOM nodes representing this object and any
 * subordinate JFXX extension or ICC Profile segments.
 */
IIOMetadataNode getNativeNode() {
    IIOMetadataNode node = new IIOMetadataNode("app0JFIF");
    node.setAttribute("majorVersion", Integer.toString(majorVersion));
    node.setAttribute("minorVersion", Integer.toString(minorVersion));
    node.setAttribute("resUnits", Integer.toString(resUnits));
    node.setAttribute("Xdensity", Integer.toString(Xdensity));
    node.setAttribute("Ydensity", Integer.toString(Ydensity));
    node.setAttribute("thumbWidth", Integer.toString(thumbWidth));
    node.setAttribute("thumbHeight", Integer.toString(thumbHeight));
    if (!extSegments.isEmpty()) {
        IIOMetadataNode JFXXnode = new IIOMetadataNode("JFXX");
        node.appendChild(JFXXnode);
        for (Iterator iter = extSegments.iterator(); iter.hasNext();) {
            JFIFExtensionMarkerSegment seg =
                (JFIFExtensionMarkerSegment) iter.next();
            JFXXnode.appendChild(seg.getNativeNode());
        }
    }
    if (iccSegment != null) {
        node.appendChild(iccSegment.getNativeNode());
    }

    return node;
}
 

ICCMarkerSegment(Node node) throws IIOInvalidTreeException {
    super(JPEG.APP2);
    if (node instanceof IIOMetadataNode) {
        IIOMetadataNode ourNode = (IIOMetadataNode) node;
        ICC_Profile prof = (ICC_Profile) ourNode.getUserObject();
        if (prof != null) {  // May be null
            profile = prof.getData();
        }
    }
}
 

private IIOMetadataNode addChildNode(IIOMetadataNode root,
                                     String name,
                                     Object object) {
    IIOMetadataNode child = new IIOMetadataNode(name);
    if (object != null) {
        child.setUserObject(object);
        child.setNodeValue(ImageUtil.convertObjectToString(object));
    }
    root.appendChild(child);
    return child;
}
 

IIOMetadataNode getNativeNode() {
    IIOMetadataNode node = new IIOMetadataNode("JFIFthumbJPEG");
    if (thumbMetadata != null) {
        node.appendChild(thumbMetadata.getNativeTree());
    }
    return node;
}
 

private Node getNativeTree() {
    IIOMetadataNode root =
        new IIOMetadataNode(nativeMetadataFormatName);

    addChildNode(root, "WBMPType", new Integer(wbmpType));
    addChildNode(root, "Width", new Integer(width));
    addChildNode(root, "Height", new Integer(height));

    return root;
}
 

private boolean insertNodeIntoTree(IIOMetadataNode root,
                                   IIOMetadataNode node) {
    String name = node.getNodeName();
    String parent = format.getParent(name);
    if (parent == null)
        return false;

    IIOMetadataNode parentNode = getNodeFromTree(root, parent, name);
    if (parentNode == null)
        parentNode = createNodeIntoTree(root, parent);
    parentNode.appendChild(node);
    return true;
}
 

private IIOMetadataNode addChildNode(IIOMetadataNode root,
                                     String name,
                                     Object object) {
    IIOMetadataNode child = new IIOMetadataNode(name);
    if (object != null) {
        child.setUserObject(object);
        child.setNodeValue(ImageUtil.convertObjectToString(object));
    }
    root.appendChild(child);
    return child;
}
 

public IIOMetadataNode getNode() {
    IIOMetadataNode iTXt = new IIOMetadataNode("iTXt");
    IIOMetadataNode iTXtEntry = new IIOMetadataNode("iTXtEntry");
    iTXtEntry.setAttribute("keyword", keyword);
    iTXtEntry.setAttribute("compressionFlag",
                           isCompressed ? "true" : "false");
    iTXtEntry.setAttribute("compressionMethod",
                           Integer.toString(compression));
    iTXtEntry.setAttribute("languageTag", language);
    iTXtEntry.setAttribute("translatedKeyword",
                           trasKeyword);
    iTXtEntry.setAttribute("text", text);
    iTXt.appendChild(iTXtEntry);
    return iTXt;
}
 

IIOMetadataNode getNativeNode() {
    IIOMetadataNode node = new IIOMetadataNode("dhtable");
    node.setAttribute("class", Integer.toString(tableClass));
    node.setAttribute("htableId", Integer.toString(tableID));

    node.setUserObject(new JPEGHuffmanTable(numCodes, values));

    return node;
}
 

private static void writeTo(File f, ITXtTest t) {
    BufferedImage src = createBufferedImage();
    try {
        ImageOutputStream imageOutputStream =
            ImageIO.createImageOutputStream(f);

        ImageTypeSpecifier imageTypeSpecifier =
            new ImageTypeSpecifier(src);
        ImageWriter imageWriter =
            ImageIO.getImageWritersByFormatName("PNG").next();

        imageWriter.setOutput(imageOutputStream);

        IIOMetadata m =
            imageWriter.getDefaultImageMetadata(imageTypeSpecifier, null);

        String format = m.getNativeMetadataFormatName();
        Node root = m.getAsTree(format);

        IIOMetadataNode iTXt = t.getNode();
        root.appendChild(iTXt);
        m.setFromTree(format, root);

        imageWriter.write(new IIOImage(src, null, m));
        imageOutputStream.close();
        System.out.println("Writing done.");
    } catch (Throwable e) {
        throw new RuntimeException("Writing test failed.", e);
    }
}
 

private IIOMetadataNode addChildNode(IIOMetadataNode root,
                                     String name,
                                     Object object) {
    IIOMetadataNode child = new IIOMetadataNode(name);
    if (object != null) {
        child.setUserObject(object);
        child.setNodeValue(ImageUtil.convertObjectToString(object));
    }
    root.appendChild(child);
    return child;
}
 

/**
 * Returns an <code>IIOMetadataNode</code> containing the data array
 * as a user object and a string encoded using ISO-8895-1, as an
 * attribute.
 */
IIOMetadataNode getNativeNode() {
    IIOMetadataNode node = new IIOMetadataNode("com");
    node.setAttribute("comment", getComment());
    if (data != null) {
        node.setUserObject(data.clone());
    }
    return node;
}
 

public IIOMetadataNode getNode() {
    IIOMetadataNode iTXt = new IIOMetadataNode("iTXt");
    IIOMetadataNode iTXtEntry = new IIOMetadataNode("iTXtEntry");
    iTXtEntry.setAttribute("keyword", keyword);
    iTXtEntry.setAttribute("compressionFlag",
                           isCompressed ? "true" : "false");
    iTXtEntry.setAttribute("compressionMethod",
                           Integer.toString(compression));
    iTXtEntry.setAttribute("languageTag", language);
    iTXtEntry.setAttribute("translatedKeyword",
                           trasKeyword);
    iTXtEntry.setAttribute("text", text);
    iTXt.appendChild(iTXtEntry);
    return iTXt;
}