Missing PSVI after Validation.

[ajay bhadauria]

Hi all,

I am trying to get PSVI info after JAXP validation of xml instance with schema 
but I am not getting PSVI info. It looks like I am missing very basic thing.

I provided DOMSource and DOMResult to the JAXP validator 
(validate(DOMSource,DOMResult). Both these sources are created from the 
DocumentBuilderFactory which has 
attribute(org.apache.xerces.dom.PSVIDocumentImpl") .

Please find the attached file if someone can pinpoint what I am missing that 
will great help for me.

Thanks
Ab


      
import java.io.*;
import java.io.IOException;

import javax.xml.XMLConstants;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Schema;
import javax.xml.validation.Validator;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import javax.xml.transform.dom.DOMSource;
import org.apache.xerces.xs.*;
import javax.xml.transform.dom.DOMResult;

public class TestPsviInfo implements ErrorHandler
{

	DocumentBuilderFactory dbf = null;
        Schema schema = null;
        Validator validator = null;
	public Document parseDom(File xmlFile, String xsdFile)
	{
              String language = XMLConstants.W3C_XML_SCHEMA_NS_URI;
              SchemaFactory factory = SchemaFactory.newInstance(language);

              try 
              {
              factory.setFeature("http://apache.org/xml/features/validation/schema/augment-psvi";, true);
              schema = factory.newSchema(new File(xsdFile));
              }
              catch ( Exception e )
              {

                      System.out.println(e.toString());
              }
              validator = schema.newValidator();
              validator.setErrorHandler(this);

              Document document= null;
              DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
              dFactory.setAttribute("http://apache.org/xml/properties/dom/document-class-name";, "org.apache.xerces.dom.PSVIDocumentImpl");

              dFactory.setNamespaceAware(true);
              DocumentBuilder dBuilder =null;
              try
              {
              dBuilder = dFactory.newDocumentBuilder();
              }
              catch( Exception e)
              {
                   System.out.println(e.toString());
              }
              Document docResult = null;
              try
              {
                    document = dBuilder.parse( new FileInputStream(xmlFile));
                    docResult = dBuilder.newDocument();
              }
	      catch (SAXException e)
	      {
			// TODO Auto-generated catch block
			e.printStackTrace();
              }
	      catch (IOException e)
	      {
			// TODO Auto-generated catch block
			e.printStackTrace();
	      }
              ElementPSVI psviElem = null;
              if (document.getDocumentElement().isSupported("psvi", "1.0"))
              {
                 System.out.println("debug1 " );
                 psviElem = (ElementPSVI)document.getDocumentElement();
                 XSElementDeclaration decl = psviElem.getElementDeclaration();
                 System.out.println("debug2 "  );
              }
              DOMSource source = new DOMSource(document);
              DOMResult result = new DOMResult(docResult);
              try
              {
              validator.validate(source,result); 
              }
              catch (Exception e)
              {
                 System.out.println(e.toString());

              }

              if (docResult.getDocumentElement().isSupported("psvi", "1.0"))
              {
                 System.out.println("debug3 " );
                 psviElem = (ElementPSVI)docResult.getDocumentElement();
                 XSElementDeclaration decl = psviElem.getElementDeclaration();
                 System.out.println("debug4 "  );
              }

	      return null;

	}

	public void warning(SAXParseException arg0) throws SAXException
	{
		System.out.println("instance warning " + arg0);

	}

	public void error(SAXParseException arg0) throws SAXException
	{
		System.out.println("instance error " + arg0);
		Node node = null;

		node =
			(Node) validator.getProperty( "http://apache.org/xml/properties/dom/current-element-node";);

		if (node != null)
		{
			System.out.println("node = " + node.getNodeName());
		}
		else
			System.out.println("Node = null");
		//e.printStackTrace();


	}

	public void fatalError(SAXParseException arg0) throws SAXException
	{
		System.out.println("instance fatal " + arg0);

	}
	//	DefaultHandler contain no-op implementations for all SAX events.
	// This class should override methods to capture the events of interest.

	public static void main(String[] args)
	{
		System.out.println("Progrma  started");

		File xmlFile = new File(args[0]);
		if (!xmlFile.exists())
		{
			System.out.println("cannot find xml file " + args[0]);
			System.exit(0);
		}

		TestCurrentNode testSax = new TestCurrentNode();
		testSax.parseDom(xmlFile, args[1]);
		System.out.println("Program ended");

	}
}


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