import  java.io.IOException;
 import  java.io.PrintStream;
 import  java.io.StringReader;

 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.NamedNodeMap;
 import  org.w3c.dom.Node;
 import  org.w3c.dom.NodeList;
 import  org.xml.sax.InputSource;
 import  org.xml.sax.SAXException;

 import  com.sun.org.apache.xpath.internal.XPathAPI;

 public   class  XPathTest
{
	 public   static   void  main(String[] args)  throws  SAXException, IOException,
			ParserConfigurationException, TransformerException
	{
		String xml = "<xml><mynode>value</mynode><othernode><child>data</child></othernode></xml>";
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		factory.setValidating(false);
		Document document = factory.newDocumentBuilder().parse(
				 new  InputSource( new  StringReader(xml)));
		String xpathExp = "/xml/othernode";
		NodeList list = XPathAPI.selectNodeList(document, xpathExp);
		print(list.item( 0 ), System.out);
	}

	 static   void  print(Node node, PrintStream out)
	{
		 int  type = node.getNodeType();
		 switch  (type)
		{
			 case  Node.ELEMENT_NODE:
				out.print("<" + node.getNodeName());
				NamedNodeMap attrs = node.getAttributes();
				 int  len = attrs.getLength();
				 for  ( int  i =  0 ; i < len; i++)
				{
					Attr attr = (Attr) attrs.item(i);
					out.print(" " + attr.getNodeName() + "=\""
							+ escapeXML(attr.getNodeValue()) + "\"");
				}
				out.print('>');
				NodeList children = node.getChildNodes();
				len = children.getLength();
				 for  ( int  i =  0 ; i < len; i++)
					print(children.item(i), out);
				out.print("</" + node.getNodeName() + ">");
				 break ;
			 case  Node.ENTITY_REFERENCE_NODE:
				out.print("&" + node.getNodeName() + ";");
				 break ;
			 case  Node.CDATA_SECTION_NODE:
				out.print("<![CDATA[" + node.getNodeValue() + "]]>");
				 break ;
			 case  Node.TEXT_NODE:
				out.print(escapeXML(node.getNodeValue()));
				 break ;
			 case  Node.PROCESSING_INSTRUCTION_NODE:
				out.print("<?" + node.getNodeName());
				String data = node.getNodeValue();
				 if  (data !=  null  && data.length() >  0 )
					out.print(" " + data);
				out.println("?>");
				 break ;
		}
	}

	 static  String escapeXML(String s)
	{
		StringBuffer str =  new  StringBuffer();
		 int  len = (s !=  null ) ? s.length() :  0 ;
		 for  ( int  i =  0 ; i < len; i++)
		{
			 char  ch = s.charAt(i);
			 switch  (ch)
			{
				 case  '<':
					str.append("<");
					 break ;
				 case  '>':
					str.append(">");
					 break ;
				 case  '&':
					str.append("&");
					 break ;
				 case  '"':
					str.append(""");
					break;
				case '\'':
					str.append("'");
					 break ;
				 default :
					str.append(ch);
			}
		}
		 return  str.toString();
	}
}