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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.dom3.core;
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import java.util.Iterator;
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import java.util.ListIterator;
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import java.util.Map;
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import org.jbind.util.other.StrBuffer;
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import org.jbind.xml.base.ILocation;
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import org.jbind.xml.core.base.ITextContentMemento;
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import org.jbind.xml.core.base.ITextContentProvider;
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import org.jbind.xml.core.bridge.IElementImpl;
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import org.jbind.xml.core.bridge.IImplContainer;
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import org.jbind.xml.core.bridge.ITextImpl;
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import org.jbind.xml.core.data.IImpl;
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import org.jbind.xml.dom3.types.IDomComment;
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import org.jbind.xml.dom3.types.IDomDocument;
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import org.jbind.xml.dom3.types.IDomElement;
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import org.jbind.xml.dom3.types.IDomNamedNodeMap;
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import org.jbind.xml.dom3.types.IDomNode;
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import org.jbind.xml.dom3.types.IDomNodeList;
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import org.jbind.xml.dom3.types.IDomProcessingInstruction;
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import org.jbind.xml.dom3.types.IDomText;
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import org.jbind.xml.dom3.types.IDomVisitor;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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public abstract class DomNode extends DomObject implements IDomNode {
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/**
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* Recursively collects the text content of the nodes in the specified node list.
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*/
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protected static final void collectTextContent(IDomNodeList aDomNodeList, StrBuffer aStrBuffer) {
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for (Iterator i = aDomNodeList.iterNodes(); i.hasNext(); ) {
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IDomNode node = (IDomNode)i.next();
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if (!(node instanceof IDomProcessingInstruction) && !(node instanceof IDomComment)) {
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aStrBuffer.append(node.getTextContent());
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}
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}
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}
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protected static final String collectTextContent(IDomNodeList aDomNodeList) {
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StrBuffer sb = new StrBuffer();
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collectTextContent(aDomNodeList, sb);
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return sb.toString();
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}
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/**
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* <i>(required)</i>.
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* The parent of this node. All nodes, except <code>Attr</code>,
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* <code>Document</code>, <code>DocumentFragment</code>,
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* <code>Entity</code>, and <code>Notation</code> may have a parent.
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* However, if a node has just been created and not yet added to the
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* tree, or if it has been removed from the tree, this is
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* <code>null</code>.
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*/
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protected DomNode myParentNode = null;
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// Allow protected access because the getter method looses some type information.
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/**
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* A <code>NodeList</code> that contains all children of this node. If
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* there are no children, this is a <code>NodeList</code> containing no
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* nodes.
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*/
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protected IDomNodeList myChildNodes = null;
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// Allow protected access because the getter method looses some type information.
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private Map myPrefixToNamespaceMapping = null;
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private ILocation myLocation = null;
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public DomNode(IDomDocument aDocument) {
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super(aDocument);
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IDomDocument dd = aDocument;
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if ((null == dd) && (this instanceof IDomDocument)) {
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dd = (IDomDocument)this;
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}
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myChildNodes = new DomNodeList(this, dd, DomUtil.getAllowedChildNodeTypes(getNodeType()));
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}
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protected DomNode(IDomNode aDomNode, boolean aDeep) {
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super(aDomNode, aDeep);
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myParentNode = null;// Specification: the parent node of a clone is null.
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myChildNodes = doCloneChildNodes((IDomNodeList)aDomNode.getChildNodes(), aDeep);
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}
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/**
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* Hook method for cloning the child nodes.
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*/
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protected abstract IDomNodeList doCloneChildNodes(IDomNodeList aDomNodeList, boolean aDeep);
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public Node getPreviousSibling() {
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Node res = null;
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if (null != myParentNode) {
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res = myParentNode.myChildNodes.getPreviousNode(this);
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}
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return res;
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}
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public Node getNextSibling() {
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Node res = null;
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if (null != myParentNode) {
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res = myParentNode.myChildNodes.getNextNode(this);
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}
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return res;
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}
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public boolean hasChildNodes() {
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return myChildNodes.getLength() > 0;
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}
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public Node removeChild(Node oldChild) throws DomException {
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checkMutability();
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myChildNodes.removeNode(oldChild);
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((DomNode)oldChild).myParentNode = null;
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return oldChild;
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}
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public Node appendChild(Node newChild) throws DomException {
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return insertChildAt(myChildNodes.getLength(), newChild);
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}
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public Node insertBefore(Node newChild, Node refChild) throws DomException {
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Node res = null;
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if (null == refChild) {
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res = appendChild(newChild);
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} else {
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int idx = myChildNodes.getIndex(refChild);
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res = insertChildAt(idx, newChild);
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}
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return res;
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}
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public Node insertAfter(Node newChild, Node refChild) throws DomException {
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Node res = null;
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if (null == refChild) {
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res = appendChild(newChild);
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} else {
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int idx = myChildNodes.getIndex(refChild);
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res = insertChildAt(idx + 1, newChild);
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}
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return res;
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}
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public Node replaceChild(Node newChild, Node oldChild) throws DomException {
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insertBefore(newChild, oldChild);
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removeChild(oldChild);
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return oldChild;
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}
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private Node insertChildAt(int anIndex, Node newChild) throws DomException {
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assert null != newChild : "child must not be null";
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if (newChild instanceof DomDocumentFragment) {
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for (int i = 0; i < newChild.getChildNodes().getLength(); i++) {
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insertChildAt(anIndex + i, newChild.getChildNodes().item(i));
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}
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} else {
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checkMutability();
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checkOwnerDocument((DomObject)newChild);
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// check if this node or one of its parents is the newChild
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Node n;
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for (n = this; (null != n) && (newChild != n); n = n.getParentNode());
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if (null != n) {
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throw new DomException(DomException.HIERARCHY_REQUEST_ERR, "tried to append ancestor as child");
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}
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if (null != newChild.getParentNode()) {
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newChild.getParentNode().removeChild(newChild);
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}
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myChildNodes.insertNodeAt(anIndex, newChild);
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((DomNode)newChild).myParentNode = this;
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}
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return newChild;
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}
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public NodeList getChildNodes() {
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return myChildNodes;
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}
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public void setChildNodes(IDomNodeList aNodeList) {
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myChildNodes = aNodeList;
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}
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public Node getParentNode() {
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return myParentNode;
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}
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public Node getFirstChild() {
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return myChildNodes.item(0);
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}
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public Node getLastChild() {
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return myChildNodes.item(myChildNodes.getLength() - 1);
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}
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protected Node getChildByClass(Class aClass) {
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return myChildNodes.getNodeByClass(aClass);
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}
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/**
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* Puts all <code>Text</code> nodes in the full depth of the sub-tree
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* underneath this <code>Node</code>, including attribute nodes, into a
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* "normal" form where only structure (e.g., elements, comments,
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* processing instructions, CDATA sections, and entity references)
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* separates <code>Text</code> nodes, i.e., there are neither adjacent
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* <code>Text</code> nodes nor empty <code>Text</code> nodes. This can
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* be used to ensure that the DOM view of a document is the same as if
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* it were saved and re-loaded, and is useful when operations (such as
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* XPointer lookups) that depend on a particular document tree
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* structure are to be used.In cases where the document contains
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* <code>CDATASections</code>, the normalize operation alone may not be
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* sufficient, since XPointers do not differentiate between
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* <code>Text</code> nodes and <code>CDATASection</code> nodes.
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*/
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public void normalize() {
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// TODO
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assert false : "nyi";
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}
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public boolean isSupported(String aFeature, String aVersion) {
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// TODO
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assert false : "nyi";
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return false;
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}
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public String getBaseURI() {
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// TODO
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assert false : "nyi";
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return null;
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}
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public short compareTreePosition(Node other) {
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// TODO
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assert false : "nyi";
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return 0;
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}
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public boolean isSameNode(Node aNode) {
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return equals(aNode);
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}
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259
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public boolean isEqualNode(Node aNode, boolean aDeep) {
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// TODO
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assert false : "nyi";
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return false;
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}
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265
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public String lookupNamespacePrefix(String aNamespaceUri) {
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// TODO
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assert false : "nyi";
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return null;
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269
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}
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public String getNamespaceForPrefix(String aPrefix) {
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return (String)myPrefixToNamespaceMapping.get(aPrefix);
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}
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public String getPrefixForNamespace(String aNamespace, boolean aCreate) {
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for (Iterator i = myPrefixToNamespaceMapping.entrySet().iterator();
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i.hasNext(); ) {
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Map.Entry me = (Map.Entry)i.next();
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if (aNamespace.equals(me.getValue())) {
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return (String)me.getKey();
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281
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}
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282
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}
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283
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if (!aCreate) {
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return null;
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285
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}
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286
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int i = 0;
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287
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0
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while (true) {
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288
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String p = "p" + i++;
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289
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0
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if (!myPrefixToNamespaceMapping.containsKey(p)) {
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myPrefixToNamespaceMapping.put(p, aNamespace);
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return p;
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292
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}
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293
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}
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294
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}
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295
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296
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0
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public String lookupNamespaceURI(String aPrefix) {
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297
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0
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return getNamespaceForPrefix(aPrefix);
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298
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}
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299
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300
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/**
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301
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* Gets the parent or owner element.
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302
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*/
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303
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protected Node getAncestor() {
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return getParentNode();
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}
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306
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307
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0
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public Node getInterface(String aFeature) {
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308
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// TODO
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assert false : "nyi";
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310
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0
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return null;
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311
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}
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313
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0
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public Object getUserData(String aKey) {
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314
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// TODO
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315
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assert false : "nyi";
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316
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0
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return null;
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317
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}
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318
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319
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// public Object setUserData(String aKey, Object aData, UserDataHandler aHandler) {
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320
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// // TODO
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321
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// assert false : "nyi";
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322
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// return null;
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323
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// }
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324
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//
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325
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0
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public final void accept(IDomVisitor aVisitor) {
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326
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0
|
doBeforeAccept(aVisitor);
|
|
327
|
0
|
visitAttributes(aVisitor);
|
|
328
|
0
|
visitChildren(aVisitor);
|
|
329
|
0
|
doAfterAccept(aVisitor);
|
|
330
|
|
}
|
|
331
|
|
|
|
332
|
|
protected abstract void doBeforeAccept(IDomVisitor aVisitor);
|
|
333
|
|
protected abstract void doAfterAccept(IDomVisitor aVisitor);
|
|
334
|
|
|
|
335
|
0
|
protected final void visitChildren(IDomVisitor aVisitor) {
|
|
336
|
0
|
for (Iterator i = myChildNodes.iterNodes(); i.hasNext(); ) {
|
|
337
|
0
|
IDomNode node = (IDomNode)i.next();
|
|
338
|
0
|
node.accept(aVisitor);
|
|
339
|
|
}
|
|
340
|
|
}
|
|
341
|
|
|
|
342
|
0
|
private void visitAttributes(IDomVisitor aVisitor) {
|
|
343
|
0
|
IDomNamedNodeMap nnm = (IDomNamedNodeMap)getAttributes();
|
|
344
|
0
|
if (null != nnm) {
|
|
345
|
0
|
for (Iterator i = nnm.iterNodes(); i.hasNext(); ) {
|
|
346
|
0
|
IDomNode n = (IDomNode)i.next();
|
|
347
|
0
|
n.accept(aVisitor);
|
|
348
|
|
}
|
|
349
|
|
}
|
|
350
|
|
}
|
|
351
|
|
|
|
352
|
0
|
public ILocation getLocation() {
|
|
353
|
0
|
return myLocation;
|
|
354
|
|
}
|
|
355
|
|
|
|
356
|
0
|
public void setLocation(ILocation aLocation) {
|
|
357
|
0
|
myLocation = aLocation;
|
|
358
|
|
}
|
|
359
|
|
|
|
360
|
|
//
|
|
361
|
|
// Implementation of IDataContainer
|
|
362
|
|
//
|
|
363
|
|
|
|
364
|
0
|
public ITextImpl addText(String aText, ILocation aLocation) {
|
|
365
|
0
|
IDomText text = (IDomText)myOwnerDocument.createTextNode(aText);
|
|
366
|
0
|
text.setLocation(aLocation);
|
|
367
|
0
|
appendChild(text);
|
|
368
|
0
|
return text;
|
|
369
|
|
}
|
|
370
|
|
|
|
371
|
0
|
public IElementImpl addElement(String aNamespace, String aQName, Map aPrefixMappings, ILocation aLocation) {
|
|
372
|
0
|
IDomElement element = (IDomElement)myOwnerDocument.createElementNS(aNamespace, aQName);
|
|
373
|
0
|
element.setPrefixToNamespaceMapping(aPrefixMappings);
|
|
374
|
0
|
element.setLocation(aLocation);
|
|
375
|
0
|
appendChild(element);
|
|
376
|
0
|
return element;
|
|
377
|
|
}
|
|
378
|
|
|
|
379
|
0
|
public IElementImpl addElement(String aNamespace, String aQName) {
|
|
380
|
0
|
return addElement(aNamespace, aQName, myPrefixToNamespaceMapping, null);
|
|
381
|
|
}
|
|
382
|
|
|
|
383
|
0
|
public IImplContainer getParentImpl() {
|
|
384
|
0
|
return (IImplContainer)myParentNode;
|
|
385
|
|
}
|
|
386
|
|
|
|
387
|
0
|
public void setTextContent(ITextContentProvider aTextContentProvider) {
|
|
388
|
|
// This method is overloaded in DomCharacterData and DomProcessingInstruction
|
|
389
|
0
|
myChildNodes.removeAll();
|
|
390
|
0
|
if (null != aTextContentProvider) {
|
|
391
|
0
|
DomText text = (DomText)myOwnerDocument.createTextNode(aTextContentProvider);
|
|
392
|
0
|
text.myParentNode = this;
|
|
393
|
0
|
myChildNodes.add(text);
|
|
394
|
|
}
|
|
395
|
|
}
|
|
396
|
|
|
|
397
|
0
|
public void setTextContent(String aString) {
|
|
398
|
|
// This method is overloaded in DomCharacterData and DomProcessingInstruction
|
|
399
|
0
|
DomText text = (DomText)myOwnerDocument.createTextNode(aString);
|
|
400
|
0
|
text.myParentNode = this;
|
|
401
|
0
|
myChildNodes.removeAll();
|
|
402
|
0
|
myChildNodes.add(text);
|
|
403
|
|
}
|
|
404
|
|
|
|
405
|
0
|
public ITextContentMemento saveTextContent() {
|
|
406
|
0
|
return new NodeListMemento(myChildNodes.cloneNodeList());
|
|
407
|
|
}
|
|
408
|
|
|
|
409
|
0
|
public void restoreTextContent(ITextContentMemento aMemento) {
|
|
410
|
0
|
myChildNodes.removeAll();
|
|
411
|
0
|
myChildNodes.addAll(((NodeListMemento)aMemento).getList());
|
|
412
|
|
}
|
|
413
|
|
|
|
414
|
0
|
public void setPrefixToNamespaceMapping(Map aMap) {
|
|
415
|
0
|
myPrefixToNamespaceMapping = aMap;
|
|
416
|
|
}
|
|
417
|
|
|
|
418
|
0
|
public ListIterator iterChildren() {
|
|
419
|
0
|
return myChildNodes.iterNodes();
|
|
420
|
|
}
|
|
421
|
|
|
|
422
|
0
|
public int getNbChildren() {
|
|
423
|
0
|
return myChildNodes.getLength();
|
|
424
|
|
}
|
|
425
|
|
|
|
426
|
0
|
public int getNonDefaultedNbChildren() {
|
|
427
|
0
|
return myChildNodes.getNonDefaultedLength();
|
|
428
|
|
}
|
|
429
|
|
|
|
430
|
0
|
public IImpl getChild(int anIndex) {
|
|
431
|
0
|
return (IImpl)myChildNodes.item(anIndex);
|
|
432
|
|
}
|
|
433
|
|
|
|
434
|
0
|
public Map getPrefixToNamespaceMapping() {
|
|
435
|
0
|
return myPrefixToNamespaceMapping;
|
|
436
|
|
}
|
|
437
|
|
}
|
|
438
|
|
|
