/*
    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    *
    * This software is open source.
    * See the bottom of this file for the licence.
    */
   
   package org.dom4j.dom;
   
  import org.dom4j.Element;
  import org.dom4j.QName;
  import org.dom4j.tree.DefaultAttribute;
  
  import org.w3c.dom.DOMException;
  import org.w3c.dom.Document;
  import org.w3c.dom.NamedNodeMap;
  import org.w3c.dom.NodeList;
  
  /***
   * <p>
   * <code>DOMAttribute</code> implements a doubly linked attribute which
   * supports the W3C DOM API.
   * </p>
   * 
   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
   * @version $Revision: 1.14 $
   */
  public class DOMAttribute extends DefaultAttribute implements org.w3c.dom.Attr {
      public DOMAttribute(QName qname) {
          super(qname);
      }
  
      public DOMAttribute(QName qname, String value) {
          super(qname, value);
      }
  
      public DOMAttribute(Element parent, QName qname, String value) {
          super(parent, qname, value);
      }
  
      // org.w3c.dom.Node interface
      // -------------------------------------------------------------------------
      public boolean supports(String feature, String version) {
          return DOMNodeHelper.supports(this, feature, version);
      }
  
      public String getNamespaceURI() {
          return getQName().getNamespaceURI();
      }
  
      public String getPrefix() {
          return getQName().getNamespacePrefix();
      }
  
      public void setPrefix(String prefix) throws DOMException {
          DOMNodeHelper.setPrefix(this, prefix);
      }
  
      public String getLocalName() {
          return getQName().getName();
      }
  
      public String getNodeName() {
          return getName();
      }
  
      // already part of API
      //
      // public short getNodeType();
      public String getNodeValue() throws DOMException {
          return DOMNodeHelper.getNodeValue(this);
      }
  
      public void setNodeValue(String nodeValue) throws DOMException {
          DOMNodeHelper.setNodeValue(this, nodeValue);
      }
  
      public org.w3c.dom.Node getParentNode() {
          // Per http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-637646024
          // and the NIST conformance tests, Attr.getParentNode() should always
          // return null
          return null;
      }
  
      public NodeList getChildNodes() {
          return DOMNodeHelper.getChildNodes(this);
      }
  
      public org.w3c.dom.Node getFirstChild() {
          return DOMNodeHelper.getFirstChild(this);
      }
  
      public org.w3c.dom.Node getLastChild() {
          return DOMNodeHelper.getLastChild(this);
      }
  
      public org.w3c.dom.Node getPreviousSibling() {
          return DOMNodeHelper.getPreviousSibling(this);
      }
 
     public org.w3c.dom.Node getNextSibling() {
         return DOMNodeHelper.getNextSibling(this);
     }
 
     public NamedNodeMap getAttributes() {
         return null;
     }
 
     public Document getOwnerDocument() {
         return DOMNodeHelper.getOwnerDocument(this);
     }
 
     public org.w3c.dom.Node insertBefore(org.w3c.dom.Node newChild,
             org.w3c.dom.Node refChild) throws DOMException {
         checkNewChildNode(newChild);
 
         return DOMNodeHelper.insertBefore(this, newChild, refChild);
     }
 
     public org.w3c.dom.Node replaceChild(org.w3c.dom.Node newChild,
             org.w3c.dom.Node oldChild) throws DOMException {
         checkNewChildNode(newChild);
 
         return DOMNodeHelper.replaceChild(this, newChild, oldChild);
     }
 
     public org.w3c.dom.Node removeChild(org.w3c.dom.Node oldChild)
             throws DOMException {
         return DOMNodeHelper.removeChild(this, oldChild);
     }
 
     public org.w3c.dom.Node appendChild(org.w3c.dom.Node newChild)
             throws DOMException {
         checkNewChildNode(newChild);
 
         return DOMNodeHelper.appendChild(this, newChild);
     }
 
     private void checkNewChildNode(org.w3c.dom.Node newChild)
             throws DOMException {
         final int nodeType = newChild.getNodeType();
 
         if (!((nodeType == org.w3c.dom.Node.TEXT_NODE) 
                 || (nodeType == org.w3c.dom.Node.ENTITY_REFERENCE_NODE))) {
             throw new DOMException(DOMException.HIERARCHY_REQUEST_ERR,
                     "The node cannot be a child of attribute");
         }
     }
 
     public boolean hasChildNodes() {
         return DOMNodeHelper.hasChildNodes(this);
     }
 
     public org.w3c.dom.Node cloneNode(boolean deep) {
         return DOMNodeHelper.cloneNode(this, deep);
     }
 
     public void normalize() {
         DOMNodeHelper.normalize(this);
     }
 
     public boolean isSupported(String feature, String version) {
         return DOMNodeHelper.isSupported(this, feature, version);
     }
 
     public boolean hasAttributes() {
         return DOMNodeHelper.hasAttributes(this);
     }
 
     // org.w3c.dom.Attr interface
     // -------------------------------------------------------------------------
     // public String getName();
     public boolean getSpecified() {
         return true;
     }
 
     // public String getValue();
     // public void setValue(String value) throws DOMException;
     public org.w3c.dom.Element getOwnerElement() {
         return DOMNodeHelper.asDOMElement(getParent());
     }
 }
 
 /*
  * Redistribution and use of this software and associated documentation
  * ("Software"), with or without modification, are permitted provided that the
  * following conditions are met:
  * 
  * 1. Redistributions of source code must retain copyright statements and
  * notices. Redistributions must also contain a copy of this document.
  * 
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  * this list of conditions and the following disclaimer in the documentation
  * and/or other materials provided with the distribution.
  * 
  * 3. The name "DOM4J" must not be used to endorse or promote products derived
  * from this Software without prior written permission of MetaStuff, Ltd. For
  * written permission, please contact dom4j-info@metastuff.com.
  * 
  * 4. Products derived from this Software may not be called "DOM4J" nor may
  * "DOM4J" appear in their names without prior written permission of MetaStuff,
  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
  * 
  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
  * 
  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  * 
  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
  */