src/java/org/mxchange/pizzaapplication/beans/checkout/PizzaCheckoutWebSessionBean.java

   1 /*
   2  * Copyright (C) 2016 - 2020 Free Software Foundation
   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.checkout;
  18
  19 import java.util.List;
  20 import javax.annotation.PostConstruct;
  21 import javax.annotation.PreDestroy;
  22 import javax.enterprise.context.SessionScoped;
  23 import javax.enterprise.event.Event;
  24 import javax.enterprise.inject.Any;
  25 import javax.faces.FacesException;
  26 import javax.inject.Inject;
  27 import javax.inject.Named;
  28 import javax.jms.Connection;
  29 import javax.jms.JMSException;
  30 import javax.jms.MessageProducer;
  31 import javax.jms.ObjectMessage;
  32 import javax.jms.Queue;
  33 import javax.jms.QueueConnectionFactory;
  34 import javax.jms.Session;
  35 import javax.naming.Context;
  36 import javax.naming.InitialContext;
  37 import javax.naming.NamingException;
  38 import org.mxchange.jshopcore.events.ObservableCheckoutCompletedEvent;
  39 import org.mxchange.jshopcore.events.ShopCheckoutCompletedEvent;
  40 import org.mxchange.jshopcore.model.basket.AddableBasketItem;
  41 import org.mxchange.jshopcore.wrapper.CheckoutWrapper;
  42 import org.mxchange.jshopcore.wrapper.WrapableCheckout;
  43 import org.mxchange.pizzaapplication.beans.BasePizzaBean;
  44 import org.mxchange.pizzaapplication.beans.basket.PizzaBasketWebSessionController;
  45 import org.mxchange.pizzaapplication.beans.contact.PizzaContactWebRequestController;
  46 import org.mxchange.pizzaapplication.beans.customer.PizzaCustomerWebSessionController;
  47 import org.mxchange.pizzaapplication.beans.helper.PizzaWebRequestHelperController;
  48 import org.mxchange.pizzaapplication.beans.receipt.PizzaReceiptWebRequestController;
  49
  50 /**
  51  * Checkout controller
  52  * <p>
  53  * @author Roland Häder<roland@mxchange.org>
  54  */
  55 @Named ("checkoutController")
  56 @SessionScoped
  57 public class PizzaCheckoutWebSessionBean extends BasePizzaBean implements PizzaCheckoutWebSessionController {
  58
  59         /**
  60          * Serial number
  61          */
  62         private static final long serialVersionUID = 51_987_348_347_183L;
  63
  64         /**
  65          * Basket bean
  66          */
  67         @Inject
  68         private PizzaBasketWebSessionController basketController;
  69
  70         /**
  71          * Bean helper instance
  72          */
  73         @Inject
  74         private PizzaWebRequestHelperController beanHelper;
  75
  76         /**
  77          * Event fired when a checkout was completed by the user
  78          */
  79         @Inject
  80         @Any
  81         private Event<ObservableCheckoutCompletedEvent> checkoutCompletedEvent;
  82
  83         /**
  84          * Connection
  85          */
  86         private Connection connection;
  87
  88         /**
  89          * Contact controller
  90          */
  91         @Inject
  92         private PizzaContactWebRequestController contactController;
  93
  94         /**
  95          * Customer bean
  96          */
  97         @Inject
  98         private PizzaCustomerWebSessionController customerController;
  99
 100         /**
 101          * Object message
 102          */
 103         private ObjectMessage message;
 104
 105         /**
 106          * Message producer
 107          */
 108         private MessageProducer messageProducer;
 109
 110         /**
 111          * Queue instance
 112          */
 113         private Queue queue;
 114
 115         /**
 116          * Receipt bean
 117          */
 118         @Inject
 119         private PizzaReceiptWebRequestController receiptController;
 120
 121         /**
 122          * Session instance
 123          */
 124         private Session session;
 125
 126         /**
 127          * Destructor
 128          */
 129         @PreDestroy
 130         public void destroy () {
 131                 try {
 132                         // Try to close all
 133                         this.messageProducer.close();
 134                         this.session.close();
 135                         this.connection.close();
 136                 } catch (final JMSException ex) {
 137                         // @TODO: Continue to throw is fine?
 138                         throw new FacesException(ex);
 139                 }
 140         }
 141
 142         @Override
 143         public String doCheckout () {
 144                 // Are the beans set?
 145                 if (null == this.basketController) {
 146                         // Abort here
 147                         throw new NullPointerException("basketController is null"); //NOI18N
 148                 } else if (null == this.customerController) {
 149                         // Abort here
 150                         throw new NullPointerException("customer is null"); //NOI18N
 151                 }
 152
 153                 // Are at least the required fields set?
 154                 if (!this.contactController.isRequiredPersonalDataSet()) {
 155                         // Not set, should not happen
 156                         return "checkout2"; //NOI18N
 157                 } else if (this.basketController.isEmpty()) {
 158                         // Nothing to order
 159                         return "empty_basket"; //NOI18N
 160                 }
 161
 162                 // Create customer instance
 163                 this.setCustomer(this.customerController.createCustomerInstance());
 164
 165                 // Get ordered list
 166                 List<AddableBasketItem> list = this.basketController.allItems();
 167
 168                 // Construct container
 169                 WrapableCheckout wrapper = new CheckoutWrapper();
 170                 wrapper.setCustomer(this.beanHelper.getCustomer());
 171                 wrapper.setList(list);
 172
 173                 try {
 174                         // Construct object message
 175                         this.message.setObject(wrapper);
 176
 177                         // Send message
 178                         this.messageProducer.send(this.message);
 179                 } catch (final JMSException ex) {
 180                         // @TODO: Log exception?
 181                         // Not working
 182                         return "jms_failed"; //NOI18N
 183                 }
 184
 185                 // Fire event
 186                 this.checkoutCompletedEvent.fire(new ShopCheckoutCompletedEvent(wrapper));
 187
 188                 // All fine
 189                 return "checkout_done"; //NOI18N
 190         }
 191
 192         /**
 193          * Initialization of this bean
 194          */
 195         @PostConstruct
 196         public void init () {
 197                 try {
 198                         // Get initial context
 199                         Context context = new InitialContext();
 200
 201                         // Get factory from JMS resource
 202                         QueueConnectionFactory connectionFactory = (QueueConnectionFactory) context.lookup("jms/shopConnectionFactory"); //NOI18N
 203
 204                         // Lookup queue
 205                         this.queue = (Queue) context.lookup("jms/shopCheckoutQueue"); //NOI18N
 206
 207                         // Create connection
 208                         this.connection = connectionFactory.createConnection();
 209
 210                         // Init session instance
 211                         this.session = this.connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 212
 213                         // And message producer
 214                         this.messageProducer = this.session.createProducer(this.queue);
 215
 216                         // Finally the message instance itself
 217                         this.message = this.session.createObjectMessage();
 218                 } catch (final NamingException | JMSException e) {
 219                         // Continued to throw
 220                         throw new FacesException(e);
 221                 }
 222         }
 223
 224 }