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