src/java/org/mxchange/pizzaapplication/mailer/model/delivery/PizzaEmailDeliveryMessageBean.java

   1 /*
   2  * Copyright (C) 2016 Cho-Time GmbH
   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.mailer.model.delivery;
  18
  19 import de.chotime.landingpage.database.BaseLandingDatabaseBean;
  20 import de.chotime.landingpage.mailer.model.delivery.DeliverableLandingEmail;
  21 import de.chotime.landingpage.mailer.model.delivery.LandingMailer;
  22 import java.io.Serializable;
  23 import java.text.MessageFormat;
  24 import java.util.Properties;
  25 import java.util.ResourceBundle;
  26 import javax.annotation.PostConstruct;
  27 import javax.ejb.ActivationConfigProperty;
  28 import javax.ejb.MessageDriven;
  29 import javax.jms.JMSException;
  30 import javax.jms.Message;
  31 import javax.jms.MessageListener;
  32 import javax.jms.ObjectMessage;
  33
  34 /**
  35  * A message-driven bean for sending out emails
  36  * <p>
  37  * @author Roland Haeder<rhaeder@cho-time.de>
  38  */
  39 @MessageDriven (activationConfig = {
  40         @ActivationConfigProperty (propertyName = "destinationLookup", propertyValue = "jms/jlandingpage-email-queue"),
  41         @ActivationConfigProperty (propertyName = "destinationType", propertyValue = "javax.jms.Queue")
  42 })
  43 public class PizzaEmailDeliveryMessageBean extends BaseLandingDatabaseBean implements MessageListener {
  44
  45         /**
  46          * Serial number
  47          */
  48         private static final long serialVersionUID = 75_638_176_619_024L;
  49
  50         /**
  51          * Mailer instance
  52          */
  53         private final DeliverableLandingEmail mailer;
  54
  55         /**
  56          * Configuration file
  57          */
  58         private final String configFile = "org.mxchange.jmailer.config"; //NOI18N
  59
  60         /**
  61          * Default constructor
  62          */
  63         public PizzaEmailDeliveryMessageBean () {
  64                 // Init mailer instance
  65                 this.mailer = new LandingMailer();
  66         }
  67
  68         @Override
  69         public void onMessage (final Message message) {
  70                 // Trace message
  71                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("onMessage: message={0} - CALLED!", message)); //NOI18N
  72                 // The parameter should be valid
  73                 if (null == message) {
  74                         // Throw NPE
  75                         throw new NullPointerException("message is null"); //NOI18N
  76                 } else if (!(message instanceof ObjectMessage)) {
  77                         // Not implementing right interface
  78                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
  79                 }
  80
  81                 // Securely cast it
  82                 ObjectMessage objectMessage = (ObjectMessage) message;
  83
  84                 // Init variable
  85                 Serializable serializable;
  86
  87                 try {
  88                         // Get object from message
  89                         serializable = objectMessage.getObject();
  90                 } catch (final JMSException ex) {
  91                         // Log it and don't continue any further
  92                         this.getLoggerBeanLocal().logException(ex);
  93                         return;
  94                 }
  95
  96                 // Debug message
  97                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("onMessage: serializable={0}", serializable)); //NOI18N
  98
  99                 // Trace message
 100                 this.getLoggerBeanLocal().logTrace("onMessage - EXIT!"); //NOI18N
 101         }
 102
 103         /**
 104          * Post-construction
 105          */
 106         @PostConstruct
 107         public void init () {
 108                 // Trace message
 109                 this.getLoggerBeanLocal().logTrace("init: CALLED!"); //NOI18N
 110
 111                 // Try to load bundle
 112                 ResourceBundle bundle = ResourceBundle.getBundle(this.configFile);
 113
 114                 // Debug message
 115                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("init: bundle={0}", bundle)); //NOI18N
 116
 117                 // The bunble should be valid
 118                 if (null == bundle) {
 119                         // Throw NPE
 120                         throw new NullPointerException(MessageFormat.format("bundle is null, maybe file {0} does not exist?", this.configFile)); //NOI18N
 121                 }
 122
 123                 // Init Properties
 124                 Properties properties = new Properties();
 125
 126                 // Is the bundle not empty?
 127                 if (!bundle.keySet().isEmpty()) {
 128                         // Loop through all
 129                         for (final String key : bundle.keySet()) {
 130                                 // Log debug message
 131                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("init: key={0}", key)); //NOI18N
 132
 133                                 // Get string from bundle and set it in properties
 134                                 properties.put(key, bundle.getString(key));
 135                         }
 136                 }
 137
 138                 // Handle it over to the mailer
 139                 this.mailer.init(properties);
 140
 141                 // Trace message
 142                 this.getLoggerBeanLocal().logTrace("init: EXIT!"); //NOI18N
 143         }
 144 }