/**
 * $Id: UsingJAXPTest1.java,v 1.1 2003/01/01 03:18:32 bhakti Exp $
 * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */

package test.jaxb;

import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.xml.sax.XMLReader;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import org.xml.sax.helpers.XMLFilterImpl;

import java.io.IOException;
import java.io.FileInputStream;

/** 
  * This shows how to parse an XML File using SAX
  * and display the same information from the xml file by 
  * implementing the ContentHandler interface
  */

public class UsingJAXPTest1 {

    public static void main (String args[]) {

        FileInputStream instream = null;
        InputSource is=null;
	try {
	    SAXParserFactory spf = SAXParserFactory.newInstance();
	    spf.setNamespaceAware(true);
	    XMLReader xmlReader = spf.newSAXParser().getXMLReader();

	    xmlReader.setContentHandler(new MyContentHandler());

            instream = new FileInputStream("books.xml");
            is = new InputSource(instream);

	    xmlReader.parse(is);
	} catch( IOException e) {
	    e.printStackTrace();
	    System.exit(0);
	} catch( SAXException e) {
	    e.printStackTrace();
	    System.exit(0);
	} catch( ParserConfigurationException e) {
	    e.printStackTrace();
	    System.exit(0);
	}

    }
}

class MyContentHandler extends XMLFilterImpl {
    boolean printMe = false;
    static int authorCount=0;

    private boolean getPrintValue() {
        return printMe;
    }
    private void  setPrintValue(boolean printValue) {
        printMe = printValue;
    }

    public void characters(char[] ch, int start, int length) {
        String gotString = new String(ch, start, length);
        if (printMe) {
           if (! gotString.trim().equals("")) {
               System.out.println( gotString.trim());
           }
        }
    }

    public void startElement(String namespaceURI, String localName,
        String qName, Attributes attributes) {
     
        if (localName.equals("book")) {
           authorCount=0;
           System.out.println( "\nBook Details");
           int attrsLength = attributes.getLength();
           for (int i = 0 ; i < attrsLength ; i ++ ) {
                String  itemId= attributes.getValue(i);
                System.out.println("ItemId " + itemId);

           }
        } 

        if (localName.equals("ISBN") ||
           localName.equals("price") ||
           localName.equals("description") ||
           localName.equals("Discount") ||
           localName.equals("bookCategory") ||
           localName.equals("name")) {

           System.out.println("Book " + localName +": ");
           printMe=true;

        } else if (localName.equals("authorName") ){
             System.out.println("Book " + localName +": ");
             authorCount++; 
             printMe=true;
           
        } else 

            printMe=false;

      
    }

    public void endElement(String namespaceURI,String localName,String qName){
        if (localName.equals("authors")) 
           System.out.println("No of authors :"+authorCount);
    }


}