/*
 *
 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * 
 * - Redistribution in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials
 *   provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
 * DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
 * RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
 * ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE
 * FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
 * SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF
 * THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
 * maintenance of any nuclear facility.
 * 
 */
 
import java.io.FileInputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.*;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

// import java content classes generated by binding compiler
import primer.myPo.*;

/*
 * $Id: Main.java,v 1.3 2002/09/24 18:07:13 ryans Exp $
 *
 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
 
public class Main {
    
    // This sample application demonstrates how to modify a java content
    // tree and marshal it back to a xml data. This example demonstrates
    // customiation within the schema file, po.xsd, and the impact that these 
    // customizations have on the schema derived Java representation.
    
    public static void main( String[] args ) {
        try {
            // create a JAXBContext capable of handling classes generated into
            // the primer.po package
            JAXBContext jc = JAXBContext.newInstance( "primer.myPo" );
            
            // create an Unmarshaller
            Unmarshaller u = jc.createUnmarshaller();
            
            // unmarshal a po instance document into a tree of Java content
            // objects composed of classes from the primer.myPo package.
            PurchaseOrderElement po = 
                (PurchaseOrderElement)u.unmarshal( new FileInputStream( "po.xml" ) );

            // change the billto address
            USAddress address = po.getBillTo();
            address.setToName( "John Bob" );
            address.setStreet( "242 Main Street" );
            address.setCity( "Beverly Hills" );
            address.setState(USState.CA);
            address.setZipCode( 90210);
	
            USState purchaseState = address.getState();
            ListIterator iter = po.getItems().getItem().listIterator();
	    while( iter.hasNext()) {
		
                // update to 20% off sale price	
                Items.ItemType item = (Items.ItemType)iter.next();
            	item.setPrice(item.getPrice().multiply(new BigDecimal("0.80")));
                
                //Calculate sales tax for specific states
                if (purchaseState == USState.MA) {
                    item.setPrice(item.getPrice().multiply(new BigDecimal("1.05")));
                } else if (purchaseState == USState.CA) {
                    item.setPrice(item.getPrice().multiply(new BigDecimal("1.06")));
                }
                item.setPrice(item.getPrice().setScale(2, BigDecimal.ROUND_DOWN));
            }

            // create a Marshaller and marshal to a file
            Marshaller m = jc.createMarshaller();
            m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
            m.marshal( po, System.out );
            
        } catch( JAXBException je ) {
            je.printStackTrace();
        } catch( IOException ioe ) {
            ioe.printStackTrace();
        }
    }
}