/*
* 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.
*
* @since Android 1.0
*/
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"); }
*/
/**
* <i>Description copied from interface: org.w3c.dom.Element (DOM Level
* 3)</i>
* <p>
* If the parameter isId is true, this method declares the specified
* attribute to be a user-determined ID attribute . This affects the value
* of Attr.isId and the behavior of Document.getElementById, but does not
* change any schema that may be in use, in particular this does not affect
* the Attr.schemaTypeInfo of the specified Attr node. Use the value false
* for the parameter isId to undeclare an attribute for being a
* user-determined ID attribute. To specify an attribute by local name and
* namespace URI, use the setIdAttributeNS method.
* </p>
*
* @param name
* the name of the attribute.
* @param isId
* the flag which determines whether this attribute is of type
* ID.
* @throws DOMException
* if a DOM error occurred while setting the attribute type.
* <p>
* NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
* <br>
* NOT_FOUND_ERR: Raised if the specified node is not an
* attribute of this element.
* </p>
*/
public void setIdAttribute(String name, boolean isId) throws DOMException {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Element (DOM Level
* 3)</i>
* <p>
* If the parameter isId is true, this method declares the specified
* attribute to be a user-determined ID attribute . This affects the value
* of Attr.isId and the behavior of Document.getElementById, but does not
* change any schema that may be in use, in particular this does not affect
* the Attr.schemaTypeInfo of the specified Attr node. Use the value false
* for the parameter isId to undeclare an attribute for being a
* user-determined ID attribute.
* </p>
*
* @param namespaceURI
* the namespace URI of the attribute.
* @param localName
* the local name of the attribute.
* @param isId
* the flag which determines whether this attribute is of type
* ID.
* @throws DOMException
* if a DOM error occurred while setting the attribute type.
* <p>
* NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
* <br>
* NOT_FOUND_ERR: Raised if the specified node is not an
* attribute of this element.
* </p>
*/
public void setIdAttributeNS(String namespaceURI, String localName, boolean isId)
throws DOMException {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Element (DOM Level
* 3)</i>
* <p>
* If the parameter isId is true, this method declares the specified
* attribute to be a user-determined ID attribute . This affects the value
* of Attr.isId and the behavior of Document.getElementById, but does not
* change any schema that may be in use, in particular this does not affect
* the Attr.schemaTypeInfo of the specified Attr node. Use the value false
* for the parameter isId to undeclare an attribute for being a
* user-determined ID attribute.
* </p>
*
* @param idAttr
* the attribute node.
* @param isId
* the flag which determines whether this attribute is of type
* ID.
* @throws DOMException
* if a DOM error occurred while setting the attribute type.
* <p>
* NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
* <br>
* NOT_FOUND_ERR: Raised if the specified node is not an
* attribute of this element.
* </p>
*/
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;
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* The absolute base URI of this node or null if the implementation wasn't
* able to obtain an absolute URI. This value is computed as described in.
* However, when the Document supports the feature "HTML" [DOM Level 2
* HTML], the base URI is computed using first the value of the href
* attribute of the HTML BASE element if any, and the value of the
* documentURI attribute from the Document interface otherwise.
* </p>
*
* @return the string representation of the absolute base URI.
*/
public String getBaseURI() {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Compares the reference node, i.e. the node on which this method is being
* called, with a node, i.e. the one passed as a parameter, with regard to
* their position in the document and according to the document order.
* </p>
*
* @param other
* the node to compare against the reference node.
* @return Returns how the node is positioned relatively to the reference
* node.
* @throws DOMException
* NOT_SUPPORTED_ERR: when the compared nodes are from different
* DOM implementations that do not coordinate to return
* consistent implementation-specific results.
*/
public short compareDocumentPosition(Node other) throws DOMException {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* This attribute returns the text content of this node and its descendants.
* When it is defined to be null, setting it has no effect. On setting, any
* possible children this node may have are removed and, if it the new
* string is not empty or null, replaced by a single Text node containing
* the string this attribute is set to. On getting, no serialization is
* performed, the returned string does not contain any markup. No whitespace
* normalization is performed and the returned string does not contain the
* white spaces in element content (see the attribute
* Text.isElementContentWhitespace). Similarly, on setting, no parsing is
* performed either, the input string is taken as pure textual content. The
* string returned is made of the text content of this node depending on its
* type, as defined below:
* <table>
* <tr>
* <td><strong>Node type</strong></td>
* <td><strong>Content</strong></td>
* </tr>
* <tr>
* <td>ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE,
* DOCUMENT_FRAGMENT_NODE</td>
* <td>concatenation of the textContent attribute value of every child node,
* excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the
* empty string if the node has no children.</td>
* </tr>
* <tr>
* <td>TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE,
* PROCESSING_INSTRUCTION_NODE</td>
* <td>nodeValue</td>
* </tr>
* <tr>
* <td>DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE</td>
* <td>null</td>
* </tr>
* </table>
* </p>
*
* @return the text content depending on the type of this node.
* @throws DOMException
* DOMSTRING_SIZE_ERR: Raised when it would return more
* characters than fit in a DOMString variable on the
* implementation platform.
*/
public String getTextContent() throws DOMException {
return textContent;
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* This attribute returns the text content of this node and its descendants.
* When it is defined to be null, setting it has no effect. On setting, any
* possible children this node may have are removed and, if it the new
* string is not empty or null, replaced by a single Text node containing
* the string this attribute is set to. On getting, no serialization is
* performed, the returned string does not contain any markup. No whitespace
* normalization is performed and the returned string does not contain the
* white spaces in element content (see the attribute
* Text.isElementContentWhitespace). Similarly, on setting, no parsing is
* performed either, the input string is taken as pure textual content. The
* string returned is made of the text content of this node depending on its
* type, as defined below:
* <table>
* <tr>
* <td><strong>Node type</strong></td>
* <td><strong>Content</strong></td>
* </tr>
* <tr>
* <td>ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE,
* DOCUMENT_FRAGMENT_NODE</td>
* <td>concatenation of the textContent attribute value of every child node,
* excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the
* empty string if the node has no children.</td>
* </tr>
* <tr>
* <td>TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE,
* PROCESSING_INSTRUCTION_NODE</td>
* <td>nodeValue</td>
* </tr>
* <tr>
* <td>DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE</td>
* <td>null</td>
* </tr>
* </table>
* </p>
*
* @param textContent
* the text content for this node.
* @throws DOMException
* NO_MODIFICATION_ALLOWED_ERR: Raised when the node is
* readonly.
*/
public void setTextContent(String textContent) throws DOMException {
this.textContent = textContent;
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Returns whether this node is the same node as the given one. This method
* provides a way to determine whether two Node references returned by the
* implementation reference the same object. When two Node references are
* references to the same object, even if through a proxy, the references
* may be used completely interchangeably, such that all attributes have the
* same values and calling the same DOM method on either reference always
* has exactly the same effect.
* </p>
*
* @param other
* the node to test against.
* @return true, if the nodes are the same, false otherwise.
*/
public boolean isSameNode(Node other) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Look up the prefix associated to the given namespace URI, starting from
* this node. The default namespace declarations are ignored by this method.
* See for details on the algorithm used by this method.
* </p>
*
* @param namespaceURI
* the namespace URI to look for.
* @return the associated namespace prefix if found or null if none is
* found. If more than one prefix are associated to the namespace
* prefix, the returned namespace prefix is implementation
* dependent.
*/
public String lookupPrefix(String namespaceURI) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* This method checks if the specified namespaceURI is the default namespace
* or not.
* </p>
*
* @param namespaceURI
* the namespace URI to look for.
* @return true, if the specified namespaceURI is the default namespace,
* false otherwise.
*/
public boolean isDefaultNamespace(String namespaceURI) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Look up the namespace URI associated to the given prefix, starting from
* this node. See for details on the algorithm used by this method.
* </p>
*
* @param prefix
* the prefix to look for. If this parameter is null, the method
* will return the default namespace URI if any.
* @return the associated namespace URI or null if none is found.
*/
public String lookupNamespaceURI(String prefix) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Tests whether two nodes are equal. This method tests for equality of
* nodes, not sameness (i.e., whether the two nodes are references to the
* same object) which can be tested with Node.isSameNode(). All nodes that
* are the same will also be equal, though the reverse may not be true. Two
* nodes are equal if and only if the following conditions are satisfied:
* <p>
* <li>The two nodes are of the same type.</li>
* <li>The following string attributes are equal: nodeName, localName,
* namespaceURI, prefix, nodeValue . This is: they are both null, or they
* have the same length and are character for character identical.</li>
* <li>The attributes NamedNodeMaps are equal. This is: they are both null,
* or they have the same length and for each node that exists in one map
* there is a node that exists in the other map and is equal, although not
* necessarily at the same index.</li>
* <li>The childNodes NodeLists are equal. This is: they are both null, or
* they have the same length and contain equal nodes at the same index. Note
* that normalization can affect equality; to avoid this, nodes should be
* normalized before being compared.</li>
* </p>
* For two DocumentType nodes to be equal, the following conditions must
* also be satisfied:
* <p>
* <li>The following string attributes are equal: publicId, systemId,
* internalSubset.</li>
* <li>The entities NamedNodeMaps are equal.</li>
* <li>The notations NamedNodeMaps are equal.</li>
* </p>
* On the other hand, the following do not affect equality: the
* ownerDocument, baseURI, and parentNode attributes, the specified
* attribute for Attr nodes, the schemaTypeInfo attribute for Attr and
* Element nodes, the Text.isElementContentWhitespace attribute for Text
* nodes, as well as any user data or event listeners registered on the
* nodes. </p>
* <p>
* Note: As a general rule, anything not mentioned in the description above
* is not significant in consideration of equality checking. Note that
* future versions of this specification may take into account more
* attributes and implementations conform to this specification are expected
* to be updated accordingly.
* </p>
*
* @param arg
* the node to compare equality with.
* @return true, if the nodes are equal, false otherwise.
*/
public boolean isEqualNode(Node arg) {
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, "Method not supported");
}
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* This method returns a specialized object which implements the specialized
* APIs of the specified feature and version, as specified in. The
* specialized object may also be obtained by using binding-specific casting
* methods but is not necessarily expected to, as discussed in. This method
* also allow the implementation to provide specialized objects which do not
* support the Node interface.
* </p>
*
* @param feature
* the name of the feature requested. Note that any plus sign "+"
* prepended to the name of the feature will be ignored since it
* is not significant in the context of this method.
* @param version
* this is the version number of the feature to test.
* @return the object which implements the specialized APIs of the specified
* feature and version, if any, or null if there is no object which
* implements interfaces associated with that feature. If the
* DOMObject returned by this method implements the Node interface,
* it must delegate to the primary core Node and not return results
* inconsistent with the primary core Node such as attributes,
* childNodes, etc.
*/
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"); }
*/
/**
* <i>Description copied from interface: org.w3c.dom.Node (DOM Level 3)</i>
* <p>
* Retrieves the object associated to a key on a this node. The object must
* first have been set to this node by calling setUserData with the same
* key.
* </p>
*
* @param key
* the key the object is associated to.
* @return the DOMUserData associated to the given key on this node, or null
* if there was none.
*/
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;
}
/**
* @return
*/
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!");
}
}
}
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