/*
* 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 org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import javax.xml.namespace.QName;
public abstract class QAttributedNode extends QNode {
QAttr _firstAttribute;
/**
* Returns a map of the attributes.
*/
public NamedNodeMap getAttributes()
{
return new QAttributeMap(this);
}
/**
* Returns true if the element has attributes.
*/
public boolean hasAttributes()
{
return _firstAttribute != null;
}
/**
* Returns the first attribute in the attribute list.
*/
public Attr getFirstAttribute()
{
return _firstAttribute;
}
/**
* Returns the named attribute.
*/
public String getAttribute(String name)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
if (name.equals(attr.getNodeName()))
return attr.getNodeValue();
}
return "";
}
/**
* Returns the attribute specified by a namespace.
*/
public String getAttributeNS(String namespaceURI, String local)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
String attrURI = attr.getNamespaceURI();
if (attr.getLocalName().equals(local) &&
(attrURI == namespaceURI ||
attrURI != null && attrURI.equals(namespaceURI)))
return attr.getNodeValue();
}
return "";
}
public boolean hasAttribute(String name)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
if (attr.getNodeName().equals(name))
return true;
}
return false;
}
public boolean hasAttributeNS(String uri, String local)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
String attrURI = attr.getNamespaceURI();
if (attr.getLocalName().equals(local) &&
(attrURI == uri || attrURI != null && attrURI.equals(uri)))
return true;
}
return false;
}
/**
* Returns the attribute specified by the name.
*/
public Attr getAttributeNode(String name)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
if (attr.getNodeName().equals(name))
return (Attr) attr;
}
return null;
}
public Attr getAttributeNodeNS(String uri, String local)
{
for (QAbstractNode attr = _firstAttribute;
attr != null;
attr = attr._next) {
String attrURI = attr.getNamespaceURI();
if (attr.getLocalName().equals(local) &&
(attrURI == uri ||
attrURI != null && attrURI.equals(uri)))
return (Attr) attr;
}
return null;
}
public void setAttribute(String name, String value)
throws DOMException
{
if (! isNameValid(name))
throw new QDOMException(DOMException.INVALID_CHARACTER_ERR,
"illegal attribute `" + name + "'");
setAttributeNode(_owner.createAttribute(name, value));
}
public void setAttributeNS(String uri, String local, String value)
{
Attr attr = _owner.createAttributeNS(uri, local);
attr.setNodeValue(value);
setAttributeNodeNS(attr);
}
void setAttribute(QName name, String value)
throws DOMException
{
setAttributeNode(_owner.createAttribute(name, value));
}
/**
* Sets an attribute, specified by the object.
*/
public void setIdAttribute(String name, boolean isId)
throws DOMException
{
}
/**
* Sets an attribute, specified by the object.
*/
public void setIdAttributeNS(String namespaceURI, String localName,
boolean isId)
throws DOMException
{
}
/**
* Sets an attribute, specified by the object.
*/
public void setIdAttributeNode(Attr attr, boolean isId)
throws DOMException
{
}
/**
* Sets an attribute, specified by the object.
*/
public Attr setAttributeNode(Attr attr)
throws DOMException
{
QAttr qAttr = (QAttr) attr;
if (qAttr._owner == null)
qAttr._owner = _owner;
else if (qAttr._owner != _owner)
throw new QDOMException(DOMException.WRONG_DOCUMENT_ERR,
"attribute from wrong document");
if (qAttr._parent != null)
throw new QDOMException(DOMException.INUSE_ATTRIBUTE_ERR,
"attribute `" + attr.getNodeName() +
"' is in use");
qAttr._parent = this;
// remove any matching old attribute
QAttr old = unlink(attr.getNodeName());
QAttr ptr = _firstAttribute;
if (ptr == null) {
_firstAttribute = qAttr;
}
else {
for (; ptr._next != null; ptr = (QAttr) ptr._next) {
}
ptr._next = qAttr;
}
return old;
}
public Attr setAttributeNodeNS(Attr attr)
throws DOMException
{
QAttr qAttr = (QAttr) attr;
if (qAttr._owner != _owner)
throw new QDOMException(DOMException.WRONG_DOCUMENT_ERR,
"attribute from wrong document");
if (qAttr._parent != null)
throw new QDOMException(DOMException.INUSE_ATTRIBUTE_ERR,
"attribute `" + attr.getNodeName() +
"' is in use");
// remove any matching old attribute
QAttr old = unlink(qAttr.getNamespaceURI(), qAttr.getLocalName());
qAttr._parent = this;
qAttr._next = _firstAttribute;
_firstAttribute = qAttr;
return old;
}
/**
* Removes the named attribute.
*/
public void removeAttribute(String name)
{
if (! isNameValid(name))
throw new QDOMException(DOMException.INVALID_CHARACTER_ERR,
"illegal attribute `" + name + "'");
unlink(name);
}
/**
* Removes the attribute specified by the localname and namespace.
*/
public void removeAttributeNS(String uri, String name)
{
unlink(uri, name);
}
/**
* Removes the matching attribute.
*/
public Attr removeAttributeNode(Attr attr)
{
return unlink(attr.getNodeName());
}
/**
* Removes the matching attribute.
*/
public Attr removeAttributeNodeNS(Attr attr)
{
return unlink(attr.getNamespaceURI(), attr.getLocalName());
}
/**
* Unlinks an attribute, returning it.
*/
QAttr unlink(String name)
{
QAttr prev = null;
QAttr ptr;
for (ptr = _firstAttribute;
ptr != null && ! ptr.getNodeName().equals(name);
ptr = (QAttr) ptr._next) {
prev = ptr;
}
if (ptr == null)
return null;
if (prev == null)
_firstAttribute = (QAttr) ptr._next;
else
prev._next = ptr._next;
ptr._next = null;
return ptr;
}
/**
* Removes the attribute named by the URI and local name.
*/
public QAttr unlink(String uri, String local)
{
if (local == null || uri == null)
return null;
QAttr prev = null;
QAttr ptr;
for (ptr = (QAttr) _firstAttribute;
ptr != null && (! local.equals(ptr.getLocalName()) ||
! uri.equals(ptr.getNamespaceURI()));
ptr = (QAttr) ptr._next) {
prev = ptr;
}
if (ptr == null)
return null;
if (prev == null)
_firstAttribute = (QAttr) ptr._next;
else
prev._next = ptr._next;
ptr._next = null;
return ptr;
}
static class QAttributeMap implements NamedNodeMap {
QAttributedNode _elt;
int _i;
QAttr _attr;
QAttributeMap(QAttributedNode elt)
{
_elt = elt;
}
public Node getNamedItem(String name)
{
return _elt.getAttributeNode(name);
}
public Node getNamedItemNS(String uri, String localName)
{
return _elt.getAttributeNodeNS(uri, localName);
}
public Node setNamedItem(Node arg) throws DOMException
{
return _elt.setAttributeNode((Attr) arg);
}
public Node setNamedItemNS(Node arg)
{
return _elt.setAttributeNodeNS((Attr) arg);
}
public Node removeNamedItem(String name) throws DOMException
{
return _elt.unlink(name);
}
public Node removeNamedItemNS(String uri, String localName)
{
return _elt.getAttributeNodeNS(uri, localName);
}
public Node item(int index)
{
QAbstractNode attr = _elt._firstAttribute;
while (index > 0 && attr != null) {
attr = attr._next;
index--;
}
return attr;
}
public int getLength()
{
int length = 0;
for (QAbstractNode attr = _elt._firstAttribute;
attr != null;
attr = attr._next)
length++;
return length;
}
}
}