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