orderlist.java

webwork source

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.examples.jasperreports;

import webwork.action.ActionSupport;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

/**
 *   A list of orders each with a list of line items
 *      
 *   @author Peter Kelley ([e-mail])
 *   @version $Revision: 1.2 $
 */
public class OrderList extends ActionSupport
{
   // Attributes ----------------------------------------------------
   static List orders;
   
   static
   {
      // This never changes, so we do it once only
      orders = new ArrayList();
      
      class Order
      {
         String customerName;
         String address1;
         String address2;
         String city;
         String state;
         String postcode;
         List lineItems;
         
         public String getCustomerName(){
             return customerName;
         }
   
         public void setCustomerName(String newCustomerName){
             customerName = newCustomerName;
         }
   
         public String getAddress1(){
             return address1;
         }
   
         public void setAddress1(String newAddress1){
             address1 = newAddress1;
         }
   
         public String getAddress2(){
             return address2;
         }
   
         public void setAddress2(String newAddress2){
             address2 = newAddress2;
         }
   
         public String getCity(){
             return city;
         }
   
         public void setCity(String newCity){
             city = newCity;
         }
   
         public String getState(){
             return state;
         }
   
         public void setState(String newState){
             state = newState;
         }
   
         public String getPostcode(){
             return postcode;
         }
   
         public void setPostcode(String newPostcode){
             postcode = newPostcode;
         }
         
         public List getLineItems(){
             return lineItems;
         }
   
         public void setLineItems(List newLineItems){
             lineItems = newLineItems;
         }
         
      }
      
      class LineItem
      {
         String productName;
         Integer quantity;
         Float unitCost;
         
         public String getProductName(){
             return productName;
         }
   
         public void setProductName(String newProductName){
             productName = newProductName;
         }
   
         public Integer getQuantity(){
             return quantity;
         }
   
         public void setQuantity(Integer newQuantity){
             quantity = newQuantity;
         }
   
         public Float getUnitCost(){
             return unitCost;
         }
   
         public void setUnitCost(Float newUnitCost){
             unitCost = newUnitCost;
         }
   
      }
      
      // We read the values from a file so that it is easy to change
      try
      {
         InputStream resource = OrderList.class.getResourceAsStream("orders.txt");
         BufferedReader in = new BufferedReader(new InputStreamReader(resource));
         String thisLine;
         List lineItems = null;
         Order thisOrder = null;
         while ((thisLine = in.readLine()) != null)
         {
            StringTokenizer tokens = new StringTokenizer(thisLine, ",");
            if ("order".equals(tokens.nextToken())) {
                if (thisOrder != null) {
                    thisOrder.setLineItems(lineItems);
                    orders.add(thisOrder);
                }
                thisOrder = new Order();
                lineItems = new ArrayList();
                thisOrder.setCustomerName(tokens.nextToken());
                thisOrder.setAddress1(tokens.nextToken());
                thisOrder.setAddress2(tokens.nextToken());
                thisOrder.setCity(tokens.nextToken());
                thisOrder.setState(tokens.nextToken());
                thisOrder.setPostcode(tokens.nextToken());

            } else {
                //Line Item
                LineItem lineItem = new LineItem();
                lineItem.setProductName(tokens.nextToken());
                lineItem.setQuantity(new Integer(tokens.nextToken()));
                lineItem.setUnitCost(new Float(tokens.nextToken()));
                lineItems.add(lineItem);
            }
         }
         thisOrder.setLineItems(lineItems);
         orders.add(thisOrder);
         in.close();   
      } catch (Throwable e) {
         e.printStackTrace(System.err);
         System.err.println("Could not read list of orders");
      }
   }
   
   // Public --------------------------------------------------------
   public List getOrders()
   {
      return orders;
   }

   public Object[] getOrderArray()
   {
      return orders.toArray();
   }

   public String getTitle()
   {
      return "Dynamic Order Report Title";
   }

}