src/java/org/mxchange/pizzaapplication/beans/checkout/PizzaCheckoutWebSessionBean.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.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.faces.FacesException;
  24 import javax.inject.Inject;
  25 import javax.inject.Named;
  26 import javax.jms.Connection;
  27 import javax.jms.JMSException;
  28 import javax.jms.MessageProducer;
  29 import javax.jms.ObjectMessage;
  30 import javax.jms.Queue;
  31 import javax.jms.QueueConnectionFactory;
  32 import javax.jms.Session;
  33 import javax.naming.Context;
  34 import javax.naming.InitialContext;
  35 import javax.naming.NamingException;
  36 import org.mxchange.jcustomercore.model.customer.Customer;
  37 import org.mxchange.jshopcore.model.basket.AddableBasketItem;
  38 import org.mxchange.jshopcore.wrapper.CheckoutWrapper;
  39 import org.mxchange.jshopcore.wrapper.WrapableCheckout;
  40 import org.mxchange.pizzaapplication.beans.basket.PizzaBasketWebSessionController;
  41 import org.mxchange.pizzaapplication.beans.customer.PizzaCustomerWebSessionController;
  42 import org.mxchange.pizzaapplication.beans.receipt.PizzaReceiptWebSessionController;
  43
  44 /**
  45  * Checkout controller
  46  * <p>
  47  * @author Roland Haeder<roland@mxchange.org>
  48  */
  49 @Named ("checkoutController")
  50 @SessionScoped
  51 public class PizzaCheckoutWebSessionBean implements PizzaCheckoutWebSessionController {
  52
  53         /**
  54          * Serial number
  55          */
  56         private static final long serialVersionUID = 51_987_348_347_183L;
  57
  58         ////////////////////// Bean injections ///////////////////////
  59         /**
  60          * Basket bean
  61          */
  62         @Inject
  63         private PizzaBasketWebSessionController basketController;
  64
  65         /**
  66          * Connection
  67          */
  68         private Connection connection;
  69
  70         /**
  71          * Customer instance
  72          */
  73         private Customer customer;
  74
  75         /**
  76          * Customer bean
  77          */
  78         @Inject
  79         private PizzaCustomerWebSessionController customerController;
  80
  81         /**
  82          * Object message
  83          */
  84         private ObjectMessage message;
  85
  86         /**
  87          * Message producer
  88          */
  89         private MessageProducer messageProducer;
  90
  91         /**
  92          * Queue instance
  93          */
  94         private Queue queue;
  95
  96         /**
  97          * Receipt bean
  98          */
  99         @Inject
 100         private PizzaReceiptWebSessionController receiptController;
 101
 102         /**
 103          * Session instance
 104          */
 105         private Session session;
 106
 107         /**
 108          * Destructor
 109          */
 110         @PreDestroy
 111         public void destroy () {
 112                 try {
 113                         // Try to close all
 114                         this.messageProducer.close();
 115                         this.session.close();
 116                         this.connection.close();
 117                 } catch (final JMSException ex) {
 118                         // TODO: Continue to throw is fine?
 119                         throw new FacesException(ex);
 120                 }
 121         }
 122
 123         @Override
 124         public String doCheckout () {
 125                 // Trace message
 126                 //this.getLogger().logTrace("doCheckout: CALLED!");
 127
 128                 // Are the beans set?
 129                 if (null == this.basketController) {
 130                         // Abort here
 131                         throw new NullPointerException("basketController is null"); //NOI18N
 132                 } else if (null == this.customerController) {
 133                         // Abort here
 134                         throw new NullPointerException("customer is null"); //NOI18N
 135                 }
 136
 137                 // Are at least the required fields set?
 138                 if (!this.customerController.isRequiredPersonalDataSet()) {
 139                         // Trace message
 140                         //this.getLogger().logTrace("doCheckout: Not all required fields are set, returning checkout2 ... - EXIT!");
 141
 142                         // Not set, should not happen
 143                         return "checkout2"; //NOI18N
 144                 } else if (this.basketController.isEmpty()) {
 145                         // Trace message
 146                         //this.getLogger().logTrace("doCheckout: basket is empty, returning empty_basket ... - EXIT!");
 147
 148                         // Nothing to order
 149                         return "empty_basket"; //NOI18N
 150                 }
 151
 152                 // Create customer instance
 153                 this.setCustomer(this.customerController.createCustomerInstance());
 154
 155                 // Debug message
 156                 //this.getLogger().logDebug(MessageFormat.format("doCheckout: customer={0}", this.getCustomer()));
 157                 // Get ordered list
 158                 List<AddableBasketItem> list = this.basketController.allItems();
 159
 160                 // Debug message
 161                 //this.getLogger().logTrace(MessageFormat.format("doCheckout: list={0}", list));
 162                 // Construct container
 163                 WrapableCheckout wrapper = new CheckoutWrapper();
 164                 wrapper.setCustomer(this.getCustomer());
 165                 wrapper.setList(list);
 166
 167                 try {
 168                         // Construct object message
 169                         this.message.setObject(wrapper);
 170
 171                         // Send message
 172                         this.messageProducer.send(this.message);
 173                 } catch (final JMSException ex) {
 174                         // TODO: Log exception?
 175                         // Not working
 176                         return "jms_failed"; //NOI18N
 177                 }
 178
 179                 // Clear basket
 180                 this.basketController.clear();
 181
 182                 // Set customer in receipt controller for verification
 183                 this.receiptController.setCustomer(this.getCustomer());
 184
 185                 // All fine
 186                 return "checkout_done"; //NOI18N
 187         }
 188
 189         @Override
 190         public Customer getCustomer () {
 191                 return this.customer;
 192         }
 193
 194         @Override
 195         public void setCustomer (final Customer customer) {
 196                 this.customer = customer;
 197         }
 198
 199         /**
 200          * Initialization of this bean
 201          */
 202         @PostConstruct
 203         public void init () {
 204                 try {
 205                         // Get initial context
 206                         Context context = new InitialContext();
 207
 208                         // Get factory from JMS resource
 209                         QueueConnectionFactory connectionFactory = (QueueConnectionFactory) context.lookup("jms/shopConnectionFactory"); //NOI18N
 210
 211                         // Lookup queue
 212                         this.queue = (Queue) context.lookup("jms/shopCheckoutQueue"); //NOI18N
 213
 214                         // Create connection
 215                         this.connection = connectionFactory.createConnection();
 216
 217                         // Init session instance
 218                         this.session = this.connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 219
 220                         // And message producer
 221                         this.messageProducer = this.session.createProducer(this.queue);
 222
 223                         // Finally the message instance itself
 224                         this.message = this.session.createObjectMessage();
 225                 } catch (final NamingException | JMSException e) {
 226                         // Continued to throw
 227                         throw new FacesException(e);
 228                 }
 229         }
 230 }