/*
 * DomTemplate.java
 *
 * @author  David Hausheer
 * @version 1.0, 10 Apr 2002
 *
 * This Class has been written for the XML lecture at ETH (http://www.ethz.ch/)
 * during SS 2002 (http://dret.net/lectures/xml-ss02/).
 * 
 */ 

import java.io.*;
import java.lang.*;
import java.util.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import org.apache.xerces.dom.*;
import org.apache.xml.serialize.*;

public class DomTemplate {
    
    public static void main(String args[])
    {
        try {

            /* Get an instance of the document builder factory */
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

            /* Validate the document */
            dbf.setValidating(false);

            /* Get namespace support */
            dbf.setNamespaceAware(true);
            
            /* Get a new document builder */
            DocumentBuilder db = dbf.newDocumentBuilder();
            
            /* Create an error handler to treat parsing errors */
            db.setErrorHandler(
              new org.xml.sax.ErrorHandler() {     
                      // ignore fatal errors (an exception is guaranteed)       
                      public void fatalError(SAXParseException spe) throws SAXException {
                          throw spe;
                      } 
                      // treat validation errors as fatal       
                      public void error(SAXParseException spe) throws SAXParseException { 
                          throw spe;       
                      } 
                      
                      // dump warnings     
                      public void warning(SAXParseException spe) throws SAXParseException { 
                          System.out.println("[Warning] " + spe.getSystemId()
                                             + ", Line " + spe.getLineNumber()
                                             + ": " + spe.getMessage());  
                      } 
                  }
              );

            /* Parse the document */
            Document doc = db.parse(args[0]);

            /* This is the root element */
            Element root = doc.getDocumentElement();

            /* Get the in-scope namespaces for one of the elements (step 2) */
            Hashtable ns = getInScopeNamespaces(root);

            /* Set all namespaces in each element of the document (step 3) */
            setAllNamespaces(root);

            /* Output the new document */
            XMLSerializer serializer = new XMLSerializer(new OutputFormat(doc,"ISO-8859-1",true));
            serializer.setOutputByteStream(System.out);
            serializer.serialize(doc);
            
            
        } catch (SAXParseException spe) {       
            // Error generated by the parser     
            System.out.println("[Error] " + spe.getSystemId()
                               + ", Line " + spe.getLineNumber()
                               + ": " + spe.getMessage());  
                  
            // Use the contained exception, if any    
            Exception x = spe;       
            if (spe.getException() != null)   
                x = spe.getException();        
            x.printStackTrace();      
            
        } catch (SAXException sxe) { 
            // Error generated during parsing 
            Exception x = sxe;       
            if (sxe.getException() != null)   
                x = sxe.getException();        
            x.printStackTrace();      
            
        } catch (ParserConfigurationException pce) {        
            // Parser with specified options can't be built   
            pce.printStackTrace();    
            
        } catch (IOException ioe) { 
            // I/O error      
            ioe.printStackTrace();    
            
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    /* This is the method you have to implement in step 2 */
    public static Hashtable getInScopeNamespaces(Element element) 
    {
        return null;
    }

    /* This is the method you have to implement in step 3 */
    public static void setAllNamespaces(Element element) 
    {
        
    }

    
    
    
}