src/java/org/mxchange/addressbook/mailer/model/delivery/AddressbookEmailDeliveryMessageBean.java

   1 /*
   2  * Copyright (C) 2016, 2017 Roland Häder
   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 javax.mail.MessagingException;
  31 import org.mxchange.addressbook.database.BaseAddressbookDatabaseBean;
  32 import org.mxchange.jmailee.model.delivery.wrapper.WrapableEmailDelivery;
  33
  34 /**
  35  * A message-driven bean for sending out emails
  36  * <p>
  37  * @author Roland Häder<roland@mxchange.org>
  38  */
  39 @MessageDriven (
  40                 name = "addressbookEmailDelivery",
  41                 description = "A message bean for email delivery",
  42                 activationConfig = {
  43                         @ActivationConfigProperty (propertyName = "destinationLookup", propertyValue = "jms/addressbook-email-queue"),
  44                         @ActivationConfigProperty (propertyName = "destinationType", propertyValue = "javax.jms.Queue")
  45                 })
  46 public class AddressbookEmailDeliveryMessageBean extends BaseAddressbookDatabaseBean implements MessageListener {
  47
  48         /**
  49          * Serial number
  50          */
  51         private static final long serialVersionUID = 75_638_176_619_024L;
  52
  53         /**
  54          * Configuration file
  55          */
  56         private final String configFile = "org.mxchange.jmailer.config"; //NOI18N//NOI18N
  57
  58         /**
  59          * Mailer instance
  60          */
  61         private final DeliverableAddressbookEmail mailer;
  62
  63         /**
  64          * Default constructor
  65          */
  66         public AddressbookEmailDeliveryMessageBean () {
  67                 // Call super constructor
  68                 super();
  69
  70                 // Init mailer instance
  71                 this.mailer = new AddressbookMailer();
  72         }
  73
  74         /**
  75          * Post-construction
  76          */
  77         @PostConstruct
  78         public void init () {
  79                 // Trace message
  80                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: CALLED!", this.getClass().getSimpleName())); //NOI18N
  81
  82                 // Try to load bundle
  83                 ResourceBundle bundle = ResourceBundle.getBundle(this.configFile);
  84
  85                 // Debug message
  86                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: bundle={1}", this.getClass().getSimpleName(), bundle)); //NOI18N
  87
  88                 // The bunble should be valid
  89                 if (null == bundle) {
  90                         // Throw NPE
  91                         throw new NullPointerException(MessageFormat.format("bundle is null, maybe file {0} does not exist?", this.configFile)); //NOI18N
  92                 }
  93
  94                 // Init Properties
  95                 Properties properties = new Properties();
  96
  97                 // Is the bundle not empty?
  98                 if (!bundle.keySet().isEmpty()) {
  99                         // Loop through all
 100                         for (final String key : bundle.keySet()) {
 101                                 // Log debug message
 102                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: key={1}", this.getClass().getSimpleName(), key)); //NOI18N
 103
 104                                 // Get string from bundle and set it in properties
 105                                 properties.put(key, bundle.getString(key));
 106                         }
 107                 }
 108
 109                 // Handle it over to the mailer
 110                 this.mailer.init(properties);
 111
 112                 // Trace message
 113                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: EXIT!", this.getClass().getSimpleName())); //NOI18N
 114         }
 115
 116         @Override
 117         public void onMessage (final Message message) {
 118                 // Trace message
 119                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage: message={1} - CALLED!", this.getClass().getSimpleName(), message)); //NOI18N
 120
 121                 // The parameter should be valid
 122                 if (null == message) {
 123                         // Throw NPE
 124                         throw new NullPointerException("message is null"); //NOI18N
 125                 } else if (!(message instanceof ObjectMessage)) {
 126                         // Not implementing right interface
 127                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
 128                 }
 129
 130                 // Securely cast it
 131                 ObjectMessage objectMessage = (ObjectMessage) message;
 132
 133                 // Init variable
 134                 Serializable serializable;
 135
 136                 try {
 137                         // Get object from message
 138                         serializable = objectMessage.getObject();
 139                 } catch (final JMSException ex) {
 140                         // Log it and don't continue any further
 141                         this.getLoggerBeanLocal().logException(ex);
 142                         return;
 143                 }
 144
 145                 // Debug message
 146                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.onMessage: serializable={1}", this.getClass().getSimpleName(), serializable)); //NOI18N
 147
 148                 // Okay, is it the right interface?
 149                 if (null == serializable) {
 150                         // Throw NPE
 151                         throw new NullPointerException("serializable is null"); //NOI18N
 152                 } else if (!(serializable instanceof WrapableEmailDelivery)) {
 153                         // Not correct object send
 154                         throw new IllegalArgumentException(MessageFormat.format("serializable={0} does not implement WrapableEmailDelivery", serializable)); //NOI18N
 155                 }
 156
 157                 // Securely cast it
 158                 WrapableEmailDelivery wrapper = (WrapableEmailDelivery) serializable;
 159
 160                 // Is all required set?
 161                 if (wrapper.getLocale() == null) {
 162                         // Throw NPE
 163                         throw new NullPointerException("wrapper.locale is null"); //NOI18N
 164                 } else if (wrapper.getRecipient() == null) {
 165                         // Throw again ...
 166                         throw new NullPointerException("wrapper.recipient is null"); //NOI18N
 167                 } else if (wrapper.getSubjectLine() == null) {
 168                         // ... and again
 169                         throw new NullPointerException("wrapper.subjectLine is null"); //NOI18N
 170                 } else if (wrapper.getSubjectLine().isEmpty()) {
 171                         // Is empty
 172                         throw new IllegalArgumentException("wrapper.subjectLine is empty"); //NOI18N
 173                 } else if (wrapper.getTemplateName() == null) {
 174                         // Throw NPE again
 175                         throw new NullPointerException("wrapper.templateName is null"); //NOI18N
 176                 } else if (wrapper.getTemplateName().isEmpty()) {
 177                         // Is empty
 178                         throw new IllegalArgumentException("wrapper.templateName is empty"); //NOI18N
 179                 }
 180
 181                 try {
 182                         // Send email out
 183                         this.mailer.sendDeliverableMail(wrapper);
 184                 } catch (final MessagingException ex) {
 185                         // Opps, something went wrong
 186                         this.getLoggerBeanLocal().logException(ex);
 187                         return;
 188                 }
 189
 190                 // Trace message
 191                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage - EXIT!", this.getClass().getSimpleName())); //NOI18N
 192         }
 193
 194 }