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