Mega Code Archive
Gets the owner document of a node
<![CDATA[
/*
* XAdES4j - A Java library for generation and verification of XAdES signatures.
* Copyright (C) 2010 Luis Goncalves.
*
* XAdES4j is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or any later version.
*
* XAdES4j 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. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with XAdES4j. If not, see <http://www.gnu.org/licenses/>.
*/
//package xades4j.utils;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Utility methods for DOM nodes.
* @author Luís
*/
public class DOMHelper
{
/**
* Gets the owner document of a node.
*
* @param node the node
* @return the node's document or the node itself if it is a document node
*
* @throws NullPointerException if {@code node} is {@code null}
*/
public static Document getOwnerDocument(Node node)
{
if (node.getNodeType() == Node.DOCUMENT_NODE)
return (Document)node;
return node.getOwnerDocument();
}
}
]]>