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.text.MessageFormat;
  20 import java.util.List;
  21 import javax.annotation.PostConstruct;
  22 import javax.annotation.PreDestroy;
  23 import javax.enterprise.context.SessionScoped;
  24 import javax.faces.FacesException;
  25 import javax.inject.Inject;
  26 import javax.inject.Named;
  27 import javax.jms.Connection;
  28 import javax.jms.JMSException;
  29 import javax.jms.MessageProducer;
  30 import javax.jms.ObjectMessage;
  31 import javax.jms.Queue;
  32 import javax.jms.QueueConnectionFactory;
  33 import javax.jms.Session;
  34 import javax.naming.Context;
  35 import javax.naming.InitialContext;
  36 import javax.naming.NamingException;
  37 import org.mxchange.jcoreee.beans.BaseFrameworkBean;
  38 import org.mxchange.jshopcore.model.basket.AddableBasketItem;
  39 import org.mxchange.jshopcore.model.customer.Customer;
  40 import org.mxchange.jshopcore.wrapper.CheckoutWrapper;
  41 import org.mxchange.jshopcore.wrapper.WrapableCheckout;
  42 import org.mxchange.pizzaapplication.beans.basket.BasketWebController;
  43 import org.mxchange.pizzaapplication.beans.customer.CustomerWebController;
  44 import org.mxchange.pizzaapplication.beans.receipt.ReceiptWebController;
  45
  46 /**
  47  * Checkout controller
  48  *
  49  * @author Roland Haeder<roland@mxchange.org>
  50  */
  51 @Named ("checkoutController")
  52 @SessionScoped
  53 public class CheckoutWebBean extends BaseFrameworkBean implements CheckoutWebController {
  54
  55         /**
  56          * Serial number
  57          */
  58         private static final long serialVersionUID = 51_987_348_347_183L;
  59
  60         /**
  61          * Connection
  62          */
  63         private Connection connection;
  64
  65         /**
  66          * Message producer
  67          */
  68         private MessageProducer messageProducer;
  69
  70         /**
  71          * Queue instance
  72          */
  73         private Queue queue;
  74
  75         /**
  76          * Session instance
  77          */
  78         private Session session;
  79
  80         /**
  81          * Object message
  82          */
  83         private ObjectMessage message;
  84
  85         /**
  86          * Customer instance
  87          */
  88         private Customer customer;
  89
  90         ////////////////////// Bean injections ///////////////////////
  91         /**
  92          * Basket bean
  93          */
  94         @Inject
  95         private BasketWebController basketController;
  96
  97         /**
  98          * Customer bean
  99          */
 100         @Inject
 101         private CustomerWebController customerController;
 102
 103         /**
 104          * Receipt bean
 105          */
 106         @Inject
 107         private ReceiptWebController receiptController;
 108
 109         @Override
 110         public String doCheckout () {
 111                 // Trace message
 112                 this.getLogger().logTrace("doCheckout: CALLED!");
 113
 114                 // Are the beans set?
 115                 if (null == this.basketController) {
 116                         // Abort here
 117                         throw new NullPointerException("basketController is null"); //NOI18N
 118                 } else if (null == this.customerController) {
 119                         // Abort here
 120                         throw new NullPointerException("customer is null"); //NOI18N
 121                 }
 122
 123                 // Are at least the required fields set?
 124                 if (!this.customerController.isRequiredPersonalDataSet()) {
 125                         // Trace message
 126                         this.getLogger().logTrace("doCheckout: Not all required fields are set, returning checkout2 ... - EXIT!");
 127
 128                         // Not set, should not happen
 129                         return "checkout2"; //NOI18N
 130                 } else if (this.basketController.isEmpty()) {
 131                         // Trace message
 132                         this.getLogger().logTrace("doCheckout: basket is empty, returning empty_basket ... - EXIT!");
 133
 134                         // Nothing to order
 135                         return "empty_basket"; //NOI18N
 136                 }
 137
 138                 // Create customer instance
 139                 this.setCustomer(this.customerController.createCustomerInstance());
 140
 141                 // Debug message
 142                 this.getLogger().logDebug(MessageFormat.format("doCheckout: customer={0}", this.getCustomer()));
 143
 144                 // Get ordered list
 145                 List<AddableBasketItem> list = this.basketController.allItems();
 146
 147                 // Debug message
 148                 this.getLogger().logTrace(MessageFormat.format("doCheckout: list={0}", list));
 149
 150                 // Construct container
 151                 WrapableCheckout wrapper = new CheckoutWrapper();
 152                 wrapper.setCustomer(this.getCustomer());
 153                 wrapper.setList(list);
 154
 155                 try {
 156                         // Construct object message
 157                         this.message.setObject(wrapper);
 158
 159                         // Send message
 160                         this.messageProducer.send(this.message);
 161                 } catch (final JMSException ex) {
 162                         // TODO: Log exception?
 163                         // Not working
 164                         return "jms_failed"; //NOI18N
 165                 }
 166
 167                 // Clear basket
 168                 this.basketController.clear();
 169
 170                 // Set customer in receipt controller for verification
 171                 this.receiptController.setCustomer(this.getCustomer());
 172
 173                 // All fine
 174                 return "checkout_done"; //NOI18N
 175         }
 176
 177         @Override
 178         public Customer getCustomer () {
 179                 return this.customer;
 180         }
 181
 182         @Override
 183         public void setCustomer (final Customer customer) {
 184                 this.customer = customer;
 185         }
 186
 187         @PostConstruct
 188         public void init () {
 189                 // Call super init for getting resource bundle
 190                 super.genericInit();
 191
 192                 try {
 193                         // Get initial context
 194                         Context context = new InitialContext();
 195
 196                         // Get factory from JMS resource
 197                         QueueConnectionFactory connectionFactory = (QueueConnectionFactory) context.lookup("jms/shopConnectionFactory"); //NOI18N
 198
 199                         // Lookup queue
 200                         this.queue = (Queue) context.lookup("jms/shopCheckoutQueue"); //NOI18N
 201
 202                         // Create connection
 203                         this.connection = connectionFactory.createConnection();
 204
 205                         // Init session instance
 206                         this.session = this.connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 207
 208                         // And message producer
 209                         this.messageProducer = session.createProducer(queue);
 210
 211                         // Finally the message instance itself
 212                         this.message = this.session.createObjectMessage();
 213                 } catch (final NamingException | JMSException e) {
 214                         // Continued to throw
 215                         throw new FacesException(e);
 216                 }
 217         }
 218
 219         /**
 220          * Destructor
 221          */
 222         @PreDestroy
 223         public void destroy () {
 224                 try {
 225                         // Try to close all
 226                         this.messageProducer.close();
 227                         this.session.close();
 228                         this.connection.close();
 229                 } catch (final JMSException ex) {
 230                         // TODO: Continue to throw is fine?
 231                         throw new FacesException(ex);
 232                 }
 233         }
 234 }