/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xml2;
import com.caucho.util.L10N;
import com.caucho.vfs.Depend;
import com.caucho.vfs.WriteStream;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.UserDataHandler;
import javax.xml.namespace.QName;
import java.io.IOException;
import java.util.ArrayList;
/**
* QAbstractNode is an abstract implementation for any DOM node.
*/
public abstract class QAbstractNode implements CauchoNode, java.io.Serializable {
protected static L10N L = new L10N(QAbstractNode.class);
QDocument _owner;
QNode _parent;
QAbstractNode _next;
QAbstractNode _previous;
String _systemId;
String _filename;
int _line;
protected QAbstractNode()
{
}
protected QAbstractNode(QDocument owner)
{
_owner = owner;
}
public void setLocation(String systemId, String filename,
int line, int column)
{
_systemId = systemId;
_filename = filename;
_line = line;
}
/**
* Returns the node's source filename.
*/
public String getFilename()
{
if (_filename != null)
return _filename;
else if (_previous != null)
return _previous.getFilename();
else if (_parent != null)
return _parent.getFilename();
else
return null;
}
/**
* Returns the base URI of the node.
*/
public String getBaseURI()
{
if (_systemId != null)
return _systemId;
else if (_previous != null)
return _previous.getBaseURI();
else if (_parent != null)
return _parent.getBaseURI();
else
return getFilename();
}
/**
* Returns the base URI
*/
public static String baseURI(Node node)
{
if (node instanceof QAbstractNode)
return ((QAbstractNode) node).getBaseURI();
else
return null;
}
/**
* Returns the node's source line.
*/
public int getLine()
{
if (_filename != null)
return _line;
else if (_previous != null)
return _previous.getLine();
else if (_parent != null)
return _parent.getLine();
else
return 0;
}
public int getColumn()
{
return 0;
}
/**
* Returns the owning document.
*/
public Document getOwnerDocument()
{
return _owner;
}
public boolean isSupported(String feature, String version)
{
return _owner.getImplementation().hasFeature(feature, version);
}
/**
* Returns a feature value.
*/
public Object getFeature(String feature, String version)
{
return null;
}
/**
* Sets a feature value.
*/
public void setFeature(String feature, boolean value)
{
}
/**
* Compares the document position
*/
public short compareDocumentPosition(Node node)
{
return 0;
}
/**
* Looks up a prefix value.
*/
public String lookupPrefix(String feature)
{
return null;
}
/**
* Returns true if the node has attributes.
*/
public boolean hasAttributes()
{
return false;
}
public String getPrefix()
{
return "";
}
public void setPrefix(String prefix)
{
}
public Object setUserData(String key, Object value, UserDataHandler userData)
{
return null;
}
public Object getUserData(String data)
{
return null;
}
public String getCanonicalName()
{
return getNodeName();
}
public String getLocalName()
{
return getNodeName();
}
public String getNamespaceURI()
{
return "";
}
public QName getQName()
{
return new QName(getNodeName(), getNamespaceURI());
}
public String getNodeValue() { return null; }
public void setNodeValue(String value) {}
public Node getParentNode() { return _parent; }
public NodeList getChildNodes()
{
return new QEmptyNodeList();
}
public Node getFirstChild() { return null; }
public Node getLastChild() { return null; }
public Node getPreviousSibling() { return _previous; }
public Node getNextSibling() { return _next; }
public NamedNodeMap getAttributes() { return null; }
public Node insertBefore(Node newChild, Node refChild)
throws DOMException
{
throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
}
public Node replaceChild(Node newChild, Node refChild)
throws DOMException
{
throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
}
public Node removeChild(Node oldChild) throws DOMException
{
throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
}
public Node appendChild(Node newNode) throws DOMException
{
throw new QDOMException(DOMException.HIERARCHY_REQUEST_ERR, "");
}
public boolean hasChildNodes() { return false; }
public boolean equals(Node arg, boolean deep)
{
return this == arg;
}
void remove()
{
if (_owner != null)
_owner._changeCount++;
if (_previous != null)
_previous._next = _next;
else if (_parent != null)
_parent._firstChild = _next;
if (_next != null)
_next._previous = _previous;
else if (_parent != null)
_parent._lastChild = _previous;
_previous = null;
_next = null;
_parent = null;
}
public QAbstractNode getNextPreorder()
{
if (_next != null)
return _next;
for (QNode ptr = _parent; ptr != null; ptr = ptr._parent) {
if (ptr._next != null)
return ptr._next;
}
return null;
}
public boolean hasContent() { return false; }
public QAbstractNode getNextContent()
{
for (QAbstractNode node = _next; node != null; node = node._next) {
if (node.hasContent())
return node;
}
return null;
}
public QAbstractNode getPreviousContent()
{
for (QAbstractNode node = _previous; node != null; node = node._previous) {
if (node.hasContent())
return node;
}
return null;
}
public String getTextValue()
{
return getNodeValue();
}
/**
* Support the same and the implementation
*/
public boolean supports(String feature, String version)
{
return _owner._implementation.hasFeature(feature, version);
}
public void normalize()
{
}
public Node cloneNode(boolean deep)
{
return _owner.importNode(this, deep);
}
// DOM level 3
public short compareTreePosition(Node other)
{
throw new UnsupportedOperationException();
}
public String getTextContent()
throws DOMException
{
return XmlUtil.textValue(this);
}
public void setTextContent(String textContent)
throws DOMException
{
throw new UnsupportedOperationException();
}
public boolean isSameNode(Node other)
{
return this == other;
}
public String lookupNamespacePrefix(String namespaceURI,
boolean useDefault)
{
throw new UnsupportedOperationException();
}
public boolean isDefaultNamespace(String namespaceURI)
{
throw new UnsupportedOperationException();
}
public String lookupNamespaceURI(String prefix)
{
throw new UnsupportedOperationException();
}
public boolean isEqualNode(Node arg)
{
return equals(arg);
}
public Node getInterface(String feature)
{
throw new UnsupportedOperationException();
}
/*
public Object setUserData(String key,
Object data,
UserDataHandler handler)
{
throw new UnsupportedOperationException();
}
public Object getUserData(String key)
{
throw new UnsupportedOperationException();
}
*/
// Caucho stuff
public ArrayList<Depend> getDependencyList()
{
if (_owner != null)
return _owner.getDependencyList();
else
return null;
}
boolean isNameValid(String name)
{
if (name == null || name.length() == 0)
return false;
if (! XmlChar.isNameStart(name.charAt(0)))
return false;
for (int i = 1; i < name.length(); i++) {
char ch = name.charAt(i);
if (! XmlChar.isNameChar(ch))
return false;
}
return true;
}
public boolean checkValid()
throws Exception
{
if (_parent == null) {
if (_next != null || _previous != null)
throw new Exception("null bad: " + this);
else
return true;
}
if (_parent._owner != _owner && _owner != _parent)
throw new Exception("owner bad: " + this);
QAbstractNode ptr = _parent._firstChild;
for (; ptr != null && ptr != this; ptr = ptr._next) {
}
if (ptr == null)
throw new Exception("not in parent: " + this);
ptr = _parent._lastChild;
for (; ptr != null && ptr != this; ptr = ptr._previous) {
}
if (ptr == null)
throw new Exception("not in parent: " + this);
if (_next == null && _parent._lastChild != this)
throw new Exception("bad tail: " + this);
else if (_next != null && _next._previous != this)
throw new Exception("bad link: " + this);
if (_previous == null && _parent._firstChild != this)
throw new Exception("bad head: " + this);
else if (_previous != null && _previous._next != this)
throw new Exception("bad link: " + this);
return true;
}
void print(XmlPrinter out) throws IOException
{
}
public void print(WriteStream out) throws IOException
{
new XmlPrinter(out).printXml(this);
}
public void printPretty(WriteStream out) throws IOException
{
new XmlPrinter(out).printPrettyXml(this);
}
public void printHtml(WriteStream out) throws IOException
{
new XmlPrinter(out).printHtml(this);
}
private Object writeReplace()
{
return new SerializedXml(this);
}
}