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