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

   1 /*
   2  * Copyright (C) 2015 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (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 General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU 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.faces.FacesException;
  25 import javax.faces.view.facelets.FaceletException;
  26 import javax.inject.Named;
  27 import javax.naming.Context;
  28 import javax.naming.InitialContext;
  29 import javax.naming.NamingException;
  30 import org.mxchange.jshopcore.model.category.Category;
  31 import org.mxchange.jshopcore.model.category.CategorySessionBeanRemote;
  32 import org.mxchange.jshopcore.model.product.Product;
  33 import org.mxchange.jshopcore.model.product.ProductSessionBeanRemote;
  34 import org.mxchange.pizzaapplication.beans.AbstractWebBean;
  35
  36 /**
  37  * General shop controller
  38  *
  39  * @author Roland Haeder<roland@mxchange.org>
  40  */
  41 @Named ("controller")
  42 @ApplicationScoped
  43 public class ShopWebBean extends AbstractWebBean implements ShopWebController {
  44
  45         /**
  46          * Serial number
  47          */
  48         private static final long serialVersionUID = 58_137_539_530_279L;
  49
  50         /**
  51          * "Cache" for all available products
  52          */
  53         private List<Product> availableProducts;
  54
  55         /**
  56          * All categories
  57          */
  58         private List<Category> categories;
  59
  60         @Override
  61         public void addCategory (final Category category) {
  62                 // Add the category
  63                 this.categories.add(category);
  64         }
  65
  66         @Override
  67         public void addProduct (final Product product) {
  68                 // Is the product available?
  69                 if (product.getProductAvailability()) {
  70                         // Add it
  71                         this.availableProducts.add(product);
  72                 }
  73         }
  74
  75         @Override
  76         public List<Category> getAllCategories () throws FacesException {
  77                 // Return it
  78                 // TODO Find something better here to prevent warning
  79                 return Collections.unmodifiableList(this.categories);
  80         }
  81
  82         @Override
  83         public List<Category> getAllCategoriesParent () throws FaceletException {
  84                 // Get regular list
  85                 List<Category> list = new LinkedList<>(this.getAllCategories());
  86
  87                 // Return it
  88                 return list;
  89         }
  90
  91         @Override
  92         public List<Product> getAvailableProducts () throws FacesException {
  93                 // Return it
  94                 // TODO Find something better here to prevent warning
  95                 return Collections.unmodifiableList(this.availableProducts);
  96         }
  97
  98         @PostConstruct
  99         public void init () {
 100                 try {
 101                         // Get initial context
 102                         Context context = new InitialContext();
 103
 104                         // Try to lookup the bean
 105                         CategorySessionBeanRemote categoryBean = (CategorySessionBeanRemote) context.lookup("ejb/stateless-category"); //NOI18N
 106
 107                         // Get all categories
 108                         this.categories = categoryBean.getAllCategories();
 109
 110                         // Try to lookup the bean
 111                         ProductSessionBeanRemote productBean = (ProductSessionBeanRemote) context.lookup("ejb/stateless-product"); //NOI18N
 112
 113                         // Get available products list
 114                         this.availableProducts = productBean.getAvailableProducts();
 115                 } catch (final NamingException e) {
 116                         // Continued to throw
 117                         throw new FacesException(e);
 118                 }
 119         }
 120 }