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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