LSParser - DOMErrorHandler - DOMError and getRelatedNode()

[Michael Mest]

Hi,

i'm using a LSParser-Instance to parse a XML-File and validate it against an XML-Schema.

That works fine so far.
The Validationerrors are reported to an Error-Listener as org.w3c.dom.DOMError

DOMError provides the Method "getLocation()", which return an org.w3c.dom.DOMLocator object which provides a "getRelatedNode()" Method.

I supposed that this method will tell me at which node in the Source-Document the error occured. Unfortunately it returnes null.

Is it possible to get the related Node in any way?

My code looks like this:

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
 
import org.w3c.dom.DOMError;
import org.w3c.dom.DOMErrorHandler;
import org.w3c.dom.DOMException;
import org.w3c.dom.bootstrap.DOMImplementationRegistry;
import org.w3c.dom.ls.DOMImplementationLS;
import org.w3c.dom.ls.LSInput;
import org.w3c.dom.ls.LSParser;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
 
 
 
 
public class ValidateXML implements DOMErrorHandler{
 
private static String _sourceFileLocation;
private static String _schemaFileLocation;

public static void main(String[] filenames) {
ValidateXML xml = new ValidateXML();
xml.setsourceFileLocation(filenames[0]);
xml.setschemaFileLocation(filenames[1]);
xml.validate();
}

public void validate(){
try{
        DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
        DOMImplementationLS impl = (DOMImplementationLS)registry.getDOMImplementation("LS");
        LSParser lspars = impl.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, "http://www.w3.org/2001/XMLSchema");
        lspars.getDomConfig().setParameter("validate", true);
        lspars.getDomConfig().setParameter("schema-location", this.getschemaFileLocation());
        lspars.getDomConfig().setParameter("error-handler", this);
        
        LSInput lsi = impl.createLSInput();
        File f = new File(this.getsourceFileLocation());
        FileInputStream fis = new FileInputStream(f);
        lsi.setByteStream(fis);
        lspars.parse(lsi);
}catch(DOMException de){
System.out.println("DOM-Exception: " + de.getMessage());
}
catch (IOException ioe) {
System.out.println("IO-Exception: " + ioe.getMessage());
}
catch(IllegalAccessException iae){
System.out.println("IllegalAccessException: " + iae.getMessage());
}
catch (ClassNotFoundException cnfe) {
System.out.println("ClassNotFoundException: " + cnfe.getMessage());
}
catch (InstantiationException ie) {
System.out.println("ClassNotFoundException: " + ie.getMessage());
}
}
 
 
public String getsourceFileLocation() {
return _sourceFileLocation;
}
 
 
 
public void setsourceFileLocation(String fileLocation) {
_sourceFileLocation = fileLocation;
}
 
 
 
public String getschemaFileLocation() {
return _schemaFileLocation;
}
 
 
 
public void setschemaFileLocation(String fileLocation) {
_schemaFileLocation = fileLocation;
}
 
 
 
public boolean handleError(DOMError error) {
// TODO Auto-generated method stub
System.out.println("ERROR-HANDLER: " + error.getLocation().getRelatedNode());
return false;
}
 
 
public void fatalError(SAXParseException arg0) throws SAXException {
// TODO Auto-generated method stub

}
 
 
public void warning(SAXParseException arg0) throws SAXException {
// TODO Auto-generated method stub

}
 
}

[ May 21, 2007: Message edited by: Michael Mest ]
[ May 21, 2007: Message edited by: Michael Mest ]

[Michael Mest]

I'm really new to Java+XM.
Is it possible that i'm using the wrong parser or anything like that?