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.events.product.AddedProductEvent;
  33 import org.mxchange.jshopcore.model.category.Category;
  34 import org.mxchange.jshopcore.model.category.CategorySessionBeanRemote;
  35 import org.mxchange.jshopcore.model.product.Product;
  36 import org.mxchange.jshopcore.model.product.ProductSessionBeanRemote;
  37
  38 /**
  39  * General shop controller
  40  * <p>
  41  * @author Roland Haeder<roland@mxchange.org>
  42  */
  43 @Named ("shopController")
  44 @ApplicationScoped
  45 public class PizzaShopWebApplicationBean implements PizzaShopWebApplicationController {
  46
  47         /**
  48          * Serial number
  49          */
  50         private static final long serialVersionUID = 58_137_539_530_279L;
  51
  52         /**
  53          * "Cache" for all available products
  54          */
  55         private List<Product> availableProducts;
  56
  57         /**
  58          * All categories
  59          */
  60         private List<Category> categories;
  61
  62         @Override
  63         public void addCategory (final Category category) {
  64                 // Add the category
  65                 this.categories.add(category);
  66         }
  67
  68         @Override
  69         public void addProduct (final Product product) {
  70                 // Is the product available?
  71                 if (product.getProductAvailability()) {
  72                         // Add it
  73                         this.availableProducts.add(product);
  74                 }
  75         }
  76
  77         @Override
  78         public void afterShopCategoryAdded (@Observes final AddedCategoryEvent event) {
  79                 // Add it here, too.
  80                 this.addCategory(event.getAddedCategory());
  81         }
  82
  83         @Override
  84         public void afterShopProductAdded (@Observes final AddedProductEvent event) {
  85                 // Add it here, too.
  86                 this.addProduct(event.getAddedProduct());
  87         }
  88
  89         @Override
  90         public List<Category> getAllCategories () throws FacesException {
  91                 // Return it
  92                 // TODO Find something better here to prevent warning
  93                 return Collections.unmodifiableList(this.categories);
  94         }
  95
  96         @Override
  97         public List<Category> getAllCategoriesParent () throws FaceletException {
  98                 // Get regular list
  99                 List<Category> list = new LinkedList<>(this.getAllCategories());
 100
 101                 // Return it
 102                 return list;
 103         }
 104
 105         @Override
 106         public List<Product> getAvailableProducts () throws FacesException {
 107                 // Return it
 108                 return Collections.unmodifiableList(this.availableProducts);
 109         }
 110
 111         /**
 112          * Initialization of this bean
 113          */
 114         @PostConstruct
 115         public void init () {
 116                 try {
 117                         // Get initial context
 118                         Context context = new InitialContext();
 119
 120                         // Try to lookup the bean
 121                         CategorySessionBeanRemote categoryBean = (CategorySessionBeanRemote) context.lookup("java:global/jshop-ejb/category!org.mxchange.jshopcore.model.category.CategorySessionBeanRemote"); //NOI18N
 122
 123                         // Get all categories
 124                         this.categories = categoryBean.getAllCategories();
 125
 126                         // Try to lookup the bean
 127                         ProductSessionBeanRemote productBean = (ProductSessionBeanRemote) context.lookup("java:global/jshop-ejb/product!org.mxchange.jshopcore.model.product.ProductSessionBeanRemote"); //NOI18N
 128
 129                         // Get available products list
 130                         this.availableProducts = productBean.getAvailableProducts();
 131                 } catch (final NamingException e) {
 132                         // Continued to throw
 133                         throw new FacesException(e);
 134                 }
 135         }
 136
 137 }