src/java/org/mxchange/pizzaapplication/beans/shop/PizzaShopWebApplicationBean.java

   1 /*
   2  * Copyright (C) 2016 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Affero General Public License as
   6  * published by the Free Software Foundation, either version 3 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Affero General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Affero General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.pizzaapplication.beans.shop;
  18
  19 import java.util.Collections;
  20 import java.util.LinkedList;
  21 import java.util.List;
  22 import javax.annotation.PostConstruct;
  23 import javax.enterprise.context.ApplicationScoped;
  24 import javax.enterprise.event.Observes;
  25 import javax.faces.FacesException;
  26 import javax.faces.view.facelets.FaceletException;
  27 import javax.inject.Named;
  28 import javax.naming.Context;
  29 import javax.naming.InitialContext;
  30 import javax.naming.NamingException;
  31 import org.mxchange.jshopcore.events.category.AddedCategoryEvent;
  32 import org.mxchange.jshopcore.model.category.Category;
  33 import org.mxchange.jshopcore.model.category.CategorySessionBeanRemote;
  34 import org.mxchange.jshopcore.model.product.Product;
  35 import org.mxchange.jshopcore.model.product.ProductSessionBeanRemote;
  36
  37 /**
  38  * General shop controller
  39  * <p>
  40  * @author Roland Haeder<roland@mxchange.org>
  41  */
  42 @Named ("shopController")
  43 @ApplicationScoped
  44 public class PizzaShopWebApplicationBean implements PizzaShopWebApplicationController {
  45
  46         /**
  47          * Serial number
  48          */
  49         private static final long serialVersionUID = 58_137_539_530_279L;
  50
  51         /**
  52          * "Cache" for all available products
  53          */
  54         private List<Product> availableProducts;
  55
  56         /**
  57          * All categories
  58          */
  59         private List<Category> categories;
  60
  61         @Override
  62         public void addCategory (final Category category) {
  63                 // Add the category
  64                 this.categories.add(category);
  65         }
  66
  67         @Override
  68         public void addProduct (final Product product) {
  69                 // Is the product available?
  70                 if (product.getProductAvailability()) {
  71                         // Add it
  72                         this.availableProducts.add(product);
  73                 }
  74         }
  75
  76         @Override
  77         public void afterShopCategoryAdded (@Observes final AddedCategoryEvent event) {
  78                 // Add it here, too.
  79                 this.addCategory(event.getAddedCategory());
  80         }
  81
  82         @Override
  83         public List<Category> getAllCategories () throws FacesException {
  84                 // Return it
  85                 // TODO Find something better here to prevent warning
  86                 return Collections.unmodifiableList(this.categories);
  87         }
  88
  89         @Override
  90         public List<Category> getAllCategoriesParent () throws FaceletException {
  91                 // Get regular list
  92                 List<Category> list = new LinkedList<>(this.getAllCategories());
  93
  94                 // Return it
  95                 return list;
  96         }
  97
  98         @Override
  99         public List<Product> getAvailableProducts () throws FacesException {
 100                 // Return it
 101                 return Collections.unmodifiableList(this.availableProducts);
 102         }
 103
 104         /**
 105          * Initialization of this bean
 106          */
 107         @PostConstruct
 108         public void init () {
 109                 try {
 110                         // Get initial context
 111                         Context context = new InitialContext();
 112
 113                         // Try to lookup the bean
 114                         CategorySessionBeanRemote categoryBean = (CategorySessionBeanRemote) context.lookup("java:global/jshop-ejb/category!org.mxchange.jshopcore.model.category.CategorySessionBeanRemote"); //NOI18N
 115
 116                         // Get all categories
 117                         this.categories = categoryBean.getAllCategories();
 118
 119                         // Try to lookup the bean
 120                         ProductSessionBeanRemote productBean = (ProductSessionBeanRemote) context.lookup("java:global/jshop-ejb/product!org.mxchange.jshopcore.model.product.ProductSessionBeanRemote"); //NOI18N
 121
 122                         // Get available products list
 123                         this.availableProducts = productBean.getAvailableProducts();
 124                 } catch (final NamingException e) {
 125                         // Continued to throw
 126                         throw new FacesException(e);
 127                 }
 128         }
 129
 130 }