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package com.c2kernel.utils;
import java.io.StringReader;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
public class XmlElementParser
{
public static String[] parse(String data, String xpath)
{
try {
return Dom4JElementParser.parse(data, xpath);
} catch (NoClassDefFoundError ex) {
Logger.msg(5, "Using old xpath parser");
return parseOld(data, xpath);
}
}
public static String[] parseOld(String data, String path)
{
Vector returnData = new Vector();
String[] returnArray = new String[0];
try
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
StringReader is = new StringReader(data);
Document doc = builder.parse(new InputSource(is));
StringTokenizer pathTokens = new StringTokenizer(path, "/");
int taille = pathTokens.countTokens();
String[] pathElements = new String[taille];
int i=taille;
while (pathTokens.hasMoreElements())
pathElements[--i] = pathTokens.nextToken();
if (Logger.doLog(6)) {
Logger.msg(6, "Path elements:");
for (int x=0;x<pathElements.length;x++)
Logger.debug(6, pathElements[x]);
}
Logger.msg(6, "Looking for attribute "+pathElements[0]+" in "+pathElements[1]);
NodeList nl = doc.getElementsByTagName(pathElements[1]);
for (int j = 0; j < nl.getLength(); j++)
{
Logger.msg(6, "Found one");
Element e = (Element)nl.item(j);
boolean match=true;
Node child=e;
for (int k=2;k<taille&&match;k++)
{
Logger.msg(6, "Checking parent "+pathElements[k]);
child = child.getParentNode();
if (!child.getNodeName().equals(pathElements[k]))
{
Logger.msg(6, "No match for "+child.getNodeName());
match=false;
}
else
Logger.msg(6, "Match");
}
if (match&&e.hasAttribute(pathElements[0])) {
Logger.msg(6, "Matching Attribute "+pathElements[0]+"="+e.getAttribute(pathElements[0]));
returnData.add(e.getAttribute(pathElements[0]));
}
}
Logger.msg(6, "Looking for element "+pathElements[0]);
nl = doc.getElementsByTagName(pathElements[0]);
for (int j = 0; j < nl.getLength(); j++)
{
Logger.msg(6, "Found one");
Element e = (Element)nl.item(j);
boolean match=true;
Node child=e;
for (int k=1;k<taille&&match;k++)
{
Logger.msg(6, "Checking parent "+pathElements[k]);
child = child.getParentNode();
if (!child.getNodeName().equals(pathElements[k]))
{
Logger.msg(6, "No match for "+child.getNodeName());
match=false;
}
else
Logger.msg(6, "Match");
}
if (match)
{
String s =e.getFirstChild().getNodeValue();
Logger.msg(6, "Found Element "+pathElements[0]+"="+s);
if (s!=null) returnData.add(s);
}
}
}
catch (Exception e)
{
//Logger.error(e);
}
Logger.msg(3, returnData.size()+" values found for "+path);
returnArray=new String[returnData.size()];
for (int i=0;i<returnArray.length;i++)
returnArray[i] = (String)returnData.get(i);
return returnArray;
}
}
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