Initial Contribution
diff --git a/awt/javax/imageio/metadata/IIOMetadataNode.java b/awt/javax/imageio/metadata/IIOMetadataNode.java
new file mode 100644
index 0000000..d5ab7a5
--- /dev/null
+++ b/awt/javax/imageio/metadata/IIOMetadataNode.java
@@ -0,0 +1,675 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package javax.imageio.metadata;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.w3c.dom.Attr;
+import org.w3c.dom.DOMException;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+//???AWT
+//import org.w3c.dom.TypeInfo;
+//import org.w3c.dom.UserDataHandler;
+
+/**
+ * The Class IIOMetadataNode represents a node of the
+ * (DOM-style) metadata tree.
+ */
+public class IIOMetadataNode implements Element, NodeList {
+
+ /** The node name. */
+ private String nodeName;
+
+ /** The node value. */
+ private String nodeValue;
+
+ /** The attributes. */
+ private IIOMetadataNodeList attrs = new IIOMetadataNodeList(new ArrayList<IIOMetadataNode>());
+
+ /** The parent node. */
+ private IIOMetadataNode parent;
+
+ /** The first child node. */
+ private IIOMetadataNode firstChild;
+
+ /** The last child node. */
+ private IIOMetadataNode lastChild;
+
+ /** The previous sibling. */
+ private IIOMetadataNode previousSibling;
+
+ /** The next sibling. */
+ private IIOMetadataNode nextSibling;
+
+ /** The number of children. */
+ private int nChildren;
+
+ /** The user object associated with this node. */
+ private Object userObject;
+
+ /** The text content of this node. */
+ private String textContent;
+
+ /**
+ * Instantiates a new empty node.
+ */
+ public IIOMetadataNode() {
+ }
+
+ /**
+ * Instantiates a new empty node with the specified name.
+ *
+ * @param nodeName the node name
+ */
+ public IIOMetadataNode(String nodeName) {
+ this.nodeName = nodeName;
+ }
+
+ /**
+ * Instantiates a new IIOMetadataNode with the specified
+ * name and value.
+ *
+ * @param nodeName the node name
+ * @param nodeValue the node value
+ */
+ private IIOMetadataNode(String nodeName, String nodeValue) {
+ this.nodeName = nodeName;
+ this.nodeValue = nodeValue;
+ }
+
+ public String getTagName() {
+ return nodeName;
+ }
+
+ public String getAttribute(String name) {
+ Attr attrNode = (Attr) attrs.getNamedItem(name);
+ return (attrNode == null) ? "" : attrNode.getValue();
+ }
+
+ public void setAttribute(String name, String value) throws DOMException {
+ Attr attr = (Attr) attrs.getNamedItem(name);
+ if (attr != null) {
+ attr.setValue(value);
+ } else {
+ attrs.list.add(new IIOMetadataAttr(name, value, this));
+ }
+ }
+
+ public void removeAttribute(String name) throws DOMException {
+ IIOMetadataAttr attr = (IIOMetadataAttr) attrs.getNamedItem(name);
+ if (attr != null) {
+ attr.setOwnerElement(null);
+ attrs.list.remove(attr);
+ }
+ }
+
+ public Attr getAttributeNode(String name) {
+ return (Attr) attrs.getNamedItem(name);
+ }
+
+ public Attr setAttributeNode(Attr newAttr) throws DOMException {
+ // Check if this attribute is already in use.
+ Element owner = newAttr.getOwnerElement();
+ if (owner != null) {
+ if (owner == this) { // Replacing an attribute node by itself has no effect
+ return null;
+ } else {
+ throw new DOMException(DOMException.INUSE_ATTRIBUTE_ERR, "Attribute is already in use");
+ }
+ }
+
+ String name = newAttr.getName();
+ Attr oldAttr = getAttributeNode(name);
+ if (oldAttr != null) {
+ removeAttributeNode(oldAttr);
+ }
+
+ IIOMetadataAttr iioAttr;
+ if (newAttr instanceof IIOMetadataAttr) {
+ iioAttr = (IIOMetadataAttr) newAttr;
+ iioAttr.setOwnerElement(this);
+ } else {
+ iioAttr = new IIOMetadataAttr(name, newAttr.getValue(), this);
+ }
+
+ attrs.list.add(iioAttr);
+
+ return oldAttr;
+ }
+
+ public Attr removeAttributeNode(Attr oldAttr) throws DOMException {
+ if (!attrs.list.remove(oldAttr)) { // Not found
+ throw new DOMException(DOMException.NOT_FOUND_ERR, "No such attribute!");
+ }
+
+ ((IIOMetadataAttr)oldAttr).setOwnerElement(null);
+
+ return oldAttr;
+ }
+
+ public NodeList getElementsByTagName(String name) {
+ ArrayList<IIOMetadataNode> nodes = new ArrayList<IIOMetadataNode>();
+
+ // Non-recursive tree walk
+ Node pos = this;
+
+ while (pos != null) {
+ if (pos.getNodeName().equals(name)) {
+ nodes.add((IIOMetadataNode)pos);
+ }
+
+ Node nextNode = pos.getFirstChild();
+
+ while (nextNode == null) {
+ if (pos == this) {
+ break;
+ }
+
+ nextNode = pos.getNextSibling();
+
+ if (nextNode == null) {
+ pos = pos.getParentNode();
+
+ if (pos == null || pos == this) {
+ nextNode = null;
+ break;
+ }
+ }
+ }
+ pos = nextNode;
+ }
+
+ return new IIOMetadataNodeList(nodes);
+ }
+
+ public String getAttributeNS(String namespaceURI, String localName) throws DOMException {
+ return getAttribute(localName);
+ }
+
+ public void setAttributeNS(String namespaceURI, String qualifiedName, String value) throws DOMException {
+ setAttribute(qualifiedName, value);
+ }
+
+ public void removeAttributeNS(String namespaceURI, String localName) throws DOMException {
+ removeAttribute(localName);
+ }
+
+ public Attr getAttributeNodeNS(String namespaceURI, String localName) throws DOMException {
+ return getAttributeNode(localName);
+ }
+
+ public Attr setAttributeNodeNS(Attr newAttr) throws DOMException {
+ return setAttributeNode(newAttr);
+ }
+
+ public NodeList getElementsByTagNameNS(String namespaceURI, String localName) throws DOMException {
+ return getElementsByTagName(localName);
+ }
+
+ public boolean hasAttribute(String name) {
+ return attrs.getNamedItem(name) != null;
+ }
+
+ public boolean hasAttributeNS(String namespaceURI, String localName) throws DOMException {
+ return hasAttribute(localName);
+ }
+
+ //???AWT
+ /*
+ public TypeInfo getSchemaTypeInfo() {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }*/
+
+ public void setIdAttribute(String name, boolean isId) throws DOMException {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public void setIdAttributeNS(String namespaceURI, String localName, boolean isId) throws DOMException {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public void setIdAttributeNode(Attr idAttr, boolean isId) throws DOMException {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public String getNodeName() {
+ return nodeName;
+ }
+
+ public String getNodeValue() throws DOMException {
+ return nodeValue;
+ }
+
+ public void setNodeValue(String nodeValue) throws DOMException {
+ this.nodeValue = nodeValue;
+ }
+
+ public short getNodeType() {
+ return ELEMENT_NODE;
+ }
+
+ public Node getParentNode() {
+ return parent;
+ }
+
+ public NodeList getChildNodes() {
+ return this;
+ }
+
+ public Node getFirstChild() {
+ return firstChild;
+ }
+
+ public Node getLastChild() {
+ return lastChild;
+ }
+
+ public Node getPreviousSibling() {
+ return previousSibling;
+ }
+
+ public Node getNextSibling() {
+ return nextSibling;
+ }
+
+ public NamedNodeMap getAttributes() {
+ return attrs;
+ }
+
+ public Document getOwnerDocument() {
+ return null;
+ }
+
+ public Node insertBefore(Node newChild, Node refChild) throws DOMException {
+ if (newChild == null) {
+ throw new IllegalArgumentException("newChild == null!");
+ }
+
+ IIOMetadataNode newIIOChild = (IIOMetadataNode) newChild;
+ IIOMetadataNode refIIOChild = (IIOMetadataNode) refChild;
+
+ newIIOChild.parent = this;
+
+ if (refIIOChild == null) {
+ newIIOChild.nextSibling = null;
+ newIIOChild.previousSibling = lastChild;
+
+ // Fix this node
+ lastChild = newIIOChild;
+ if (firstChild == null) {
+ firstChild = newIIOChild;
+ }
+ } else {
+ newIIOChild.nextSibling = refIIOChild;
+ newIIOChild.previousSibling = refIIOChild.previousSibling;
+
+ // Fix this node
+ if (firstChild == refIIOChild) {
+ firstChild = newIIOChild;
+ }
+
+ // Fix next node
+ if (refIIOChild != null) {
+ refIIOChild.previousSibling = newIIOChild;
+ }
+ }
+
+ // Fix prev node
+ if (newIIOChild.previousSibling != null) {
+ newIIOChild.previousSibling.nextSibling = newIIOChild;
+ }
+
+ nChildren++;
+
+ return newIIOChild;
+ }
+
+ public Node replaceChild(Node newChild, Node oldChild) throws DOMException {
+ if (newChild == null) {
+ throw new IllegalArgumentException("newChild == null!");
+ }
+
+ IIOMetadataNode newIIOChild = (IIOMetadataNode) newChild;
+ IIOMetadataNode oldIIOChild = (IIOMetadataNode) oldChild;
+
+ IIOMetadataNode next = oldIIOChild.nextSibling;
+ IIOMetadataNode previous = oldIIOChild.previousSibling;
+
+ // Fix new node
+ newIIOChild.parent = this;
+ newIIOChild.nextSibling = next;
+ newIIOChild.previousSibling = previous;
+
+ // Fix this node
+ if (lastChild == oldIIOChild) {
+ lastChild = newIIOChild;
+ }
+ if (firstChild == oldIIOChild) {
+ firstChild = newIIOChild;
+ }
+
+ // Fix siblings
+ if (next != null) {
+ next.previousSibling = newIIOChild;
+ }
+ if (previous != null) {
+ previous.nextSibling = newIIOChild;
+ }
+
+ // Fix old child
+ oldIIOChild.parent = null;
+ oldIIOChild.nextSibling = next;
+ oldIIOChild.previousSibling = previous;
+
+ return oldIIOChild;
+ }
+
+ public Node removeChild(Node oldChild) throws DOMException {
+ if (oldChild == null) {
+ throw new IllegalArgumentException("oldChild == null!");
+ }
+
+ IIOMetadataNode oldIIOChild = (IIOMetadataNode) oldChild;
+
+ // Fix next and previous
+ IIOMetadataNode previous = oldIIOChild.previousSibling;
+ IIOMetadataNode next = oldIIOChild.nextSibling;
+
+ if (previous != null) {
+ previous.nextSibling = next;
+ }
+ if (next != null) {
+ next.previousSibling = previous;
+ }
+
+ // Fix this node
+ if (lastChild == oldIIOChild) {
+ lastChild = previous;
+ }
+ if (firstChild == oldIIOChild) {
+ firstChild = next;
+ }
+ nChildren--;
+
+ // Fix old child
+ oldIIOChild.parent = null;
+ oldIIOChild.previousSibling = null;
+ oldIIOChild.nextSibling = null;
+
+ return oldIIOChild;
+ }
+
+ public Node appendChild(Node newChild) throws DOMException {
+ return insertBefore(newChild, null);
+ }
+
+ public boolean hasChildNodes() {
+ return nChildren != 0;
+ }
+
+ public Node cloneNode(boolean deep) {
+ IIOMetadataNode cloned = new IIOMetadataNode(nodeName);
+ cloned.setUserObject(getUserObject());
+
+ if (deep) { // Clone recursively
+ IIOMetadataNode c = firstChild;
+ while (c != null) {
+ cloned.insertBefore(c.cloneNode(true), null);
+ c = c.nextSibling;
+ }
+ }
+
+ return cloned; //To change body of implemented methods use File | Settings | File Templates.
+ }
+
+ public void normalize() {
+ // Do nothing
+ }
+
+ public boolean isSupported(String feature, String version) {
+ return false;
+ }
+
+ public String getNamespaceURI() {
+ return null;
+ }
+
+ public String getPrefix() {
+ return null;
+ }
+
+ public void setPrefix(String prefix) throws DOMException {
+ // Do nothing
+ }
+
+ public String getLocalName() {
+ return nodeName;
+ }
+
+ public boolean hasAttributes() {
+ return attrs.list.size() > 0;
+ }
+
+ public String getBaseURI() {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public short compareDocumentPosition(Node other) throws DOMException {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public String getTextContent() throws DOMException {
+ return textContent;
+ }
+
+ public void setTextContent(String textContent) throws DOMException {
+ this.textContent = textContent;
+ }
+
+ public boolean isSameNode(Node other) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public String lookupPrefix(String namespaceURI) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public boolean isDefaultNamespace(String namespaceURI) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public String lookupNamespaceURI(String prefix) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public boolean isEqualNode(Node arg) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public Object getFeature(String feature, String version) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ //???AWT
+ /*
+ public Object setUserData(String key, Object data, UserDataHandler handler) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }*/
+
+ public Object getUserData(String key) {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ public Node item(int index) {
+ if (index < 0 || index >= nChildren) {
+ return null;
+ }
+
+ Node n;
+ for (n = getFirstChild(); index > 0; index--) {
+ n = n.getNextSibling();
+ }
+
+ return n;
+ }
+
+ public int getLength() {
+ return nChildren;
+ }
+
+ /**
+ * Gets the user object associated with this node.
+ *
+ * @return the user object associated with this node
+ */
+ public Object getUserObject() {
+ return userObject;
+ }
+
+ /**
+ * Sets the user object associated with this node.
+ *
+ * @param userObject the new user object associated with this node
+ */
+ public void setUserObject(Object userObject) {
+ this.userObject = userObject;
+ }
+
+ /**
+ * The Class IIOMetadataAttr.
+ */
+ private class IIOMetadataAttr extends IIOMetadataNode implements Attr {
+
+ /** The owner element. */
+ private Element ownerElement;
+
+ /**
+ * Instantiates a new iIO metadata attr.
+ *
+ * @param name the name
+ * @param value the value
+ * @param owner the owner
+ */
+ public IIOMetadataAttr(String name, String value, Element owner) {
+ super(name, value);
+ this.ownerElement = owner;
+ }
+
+ public String getName() {
+ return getNodeName();
+ }
+
+ public boolean getSpecified() {
+ return true;
+ }
+
+ public String getValue() {
+ return nodeValue;
+ }
+
+ public void setValue(String value) throws DOMException {
+ nodeValue = value;
+ }
+
+ public Element getOwnerElement() {
+ return ownerElement;
+ }
+
+ /**
+ * Sets the owner element.
+ *
+ * @param ownerElement the new owner element
+ */
+ public void setOwnerElement(Element ownerElement) {
+ this.ownerElement = ownerElement;
+ }
+
+ public boolean isId() {
+ throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
+ }
+
+ @Override
+ public short getNodeType() {
+ return ATTRIBUTE_NODE;
+ }
+ }
+
+ /**
+ * The Class IIOMetadataNodeList.
+ */
+ private class IIOMetadataNodeList implements NodeList, NamedNodeMap {
+
+ /** The list. */
+ private List<IIOMetadataNode> list;
+
+ /**
+ * Instantiates a new iIO metadata node list.
+ *
+ * @param list the list
+ */
+ IIOMetadataNodeList(List<IIOMetadataNode> list) {
+ this.list = list;
+ }
+
+ public Node item(int index) {
+ try {
+ return list.get(index);
+ } catch (IndexOutOfBoundsException e) {
+ return null;
+ }
+ }
+
+ public int getLength() {
+ return list.size();
+ }
+
+ public Node getNamedItem(String name) {
+ for(IIOMetadataNode node:list) {
+ if (name.equals(node.getNodeName())) {
+ return node;
+ }
+ }
+ return null;
+ }
+
+ public Node setNamedItem(Node arg) throws DOMException {
+ throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
+ }
+
+ public Node removeNamedItem(String name) throws DOMException {
+ throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
+ }
+
+ public Node getNamedItemNS(String namespaceURI, String localName) throws DOMException {
+ return getNamedItem(localName);
+ }
+
+ public Node setNamedItemNS(Node arg) throws DOMException {
+ throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
+ }
+
+ public Node removeNamedItemNS(String namespaceURI, String localName) throws DOMException {
+ throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
+ }
+ }
+}