/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 2004 The Apache Software Foundation.
*
* Licensed 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.
*/
/*
* $Id: DOM2Helper.java,v 1.1.4.1 2005/09/08 11:03:09 suresh_emailid Exp $
*/
package com.sun.org.apache.xml.internal.serializer.utils;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
/**
* This class provides a DOM level 2 "helper", which provides services currently
* not provided be the DOM standard.
*
* This class is a copy of the one in com.sun.org.apache.xml.internal.utils.
* It exists to cut the serializers dependancy on that package.
*
* The differences from the original class are:
* it doesn't extend DOMHelper, not depricated,
* dropped method isNodeAfter(Node node1, Node node2)
* dropped method parse(InputSource)
* dropped method supportSAX()
* dropped method setDocument(doc)
* dropped method checkNode(Node)
* dropped method getDocument()
* dropped method getElementByID(String id, Document doc)
* dropped method getParentOfNode(Node node)
* dropped field Document m_doc;
* made class non-public
*
* This class is not a public API, it is only public because it is
* used in com.sun.org.apache.xml.internal.serializer.
*
* @xsl.usage internal
*/
public final class DOM2Helper
{
/**
* Construct an instance.
*/
public DOM2Helper(){}
/**
* Returns the local name of the given node, as defined by the
* XML Namespaces specification. This is prepared to handle documents
* built using DOM Level 1 methods by falling back upon explicitly
* parsing the node name.
*
* @param n Node to be examined
*
* @return String containing the local name, or null if the node
* was not assigned a Namespace.
*/
public String getLocalNameOfNode(Node n)
{
String name = n.getLocalName();
return (null == name) ? getLocalNameOfNodeFallback(n) : name;
}
/**
* Returns the local name of the given node. If the node's name begins
* with a namespace prefix, this is the part after the colon; otherwise
* it's the full node name.
*
* This method is copied from com.sun.org.apache.xml.internal.utils.DOMHelper
*
* @param n the node to be examined.
*
* @return String containing the Local Name
*/
private String getLocalNameOfNodeFallback(Node n)
{
String qname = n.getNodeName();
int index = qname.indexOf(':');
return (index < 0) ? qname : qname.substring(index + 1);
}
/**
* Returns the Namespace Name (Namespace URI) for the given node.
* In a Level 2 DOM, you can ask the node itself. Note, however, that
* doing so conflicts with our decision in getLocalNameOfNode not
* to trust the that the DOM was indeed created using the Level 2
* methods. If Level 1 methods were used, these two functions will
* disagree with each other.
* <p>
* TODO: Reconcile with getLocalNameOfNode.
*
* @param n Node to be examined
*
* @return String containing the Namespace URI bound to this DOM node
* at the time the Node was created.
*/
public String getNamespaceOfNode(Node n)
{
return n.getNamespaceURI();
}
/** Field m_useDOM2getNamespaceURI is a compile-time flag which
* gates some of the parser options used to build a DOM -- but
* that code is commented out at this time and nobody else
* references it, so I've commented this out as well. */
//private boolean m_useDOM2getNamespaceURI = false;
}