src/java/org/mxchange/pizzaapplication/mailer/model/delivery/PizzaEmailDeliveryMessageBean.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.pizzaapplication.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.jmailee.model.delivery.wrapper.WrapableEmailDelivery;
  32 import org.mxchange.pizzaaplication.database.BasePizzaDatabaseBean;
  33
  34 /**
  35  * A message-driven bean for sending out emails
  36  * <p>
  37  * @author Roland Haeder<roland@mxchange.org>
  38  */
  39 @MessageDriven (
  40                 name = "emailDelivery",
  41                 description = "A message-driven bean for email delivery (some kind of 'queue')",
  42                 activationConfig = {
  43                         @ActivationConfigProperty (
  44                                         propertyName = "destinationLookup",
  45                                         propertyValue = "jms/jreports-email-queue"
  46                         ),
  47                         @ActivationConfigProperty (
  48                                         propertyName = "destinationType",
  49                                         propertyValue = "javax.jms.Queue"
  50                         )
  51                 }
  52 )
  53 public class PizzaEmailDeliveryMessageBean extends BasePizzaDatabaseBean implements MessageListener {
  54
  55         /**
  56          * Serial number
  57          */
  58         private static final long serialVersionUID = 75_638_176_619_024L;
  59
  60         /**
  61          * Configuration file
  62          */
  63         private final String configFile = "org.mxchange.jmailer.config"; //NOI18N
  64
  65         /**
  66          * Mailer instance
  67          */
  68         private final DeliverablePizzaEmail mailer;
  69
  70         /**
  71          * Default constructor
  72          */
  73         public PizzaEmailDeliveryMessageBean () {
  74                 // Init mailer instance
  75                 this.mailer = new PizzaMailer();
  76         }
  77
  78         /**
  79          * Post-construction
  80          */
  81         @PostConstruct
  82         public void init () {
  83                 // Trace message
  84                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: CALLED!", this.getClass().getSimpleName())); //NOI18N
  85
  86                 // Try to load bundle
  87                 ResourceBundle bundle = ResourceBundle.getBundle(this.configFile);
  88
  89                 // Debug message
  90                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: bundle={1}", this.getClass().getSimpleName(), bundle)); //NOI18N
  91
  92                 // The bunble should be valid
  93                 if (null == bundle) {
  94                         // Throw NPE
  95                         throw new NullPointerException(MessageFormat.format("bundle is null, maybe file {0} does not exist?", this.configFile)); //NOI18N
  96                 }
  97
  98                 // Init Properties
  99                 Properties properties = new Properties();
 100
 101                 // Is the bundle not empty?
 102                 if (!bundle.keySet().isEmpty()) {
 103                         // Loop through all
 104                         for (final String key : bundle.keySet()) {
 105                                 // Log debug message
 106                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: key={1}", this.getClass().getSimpleName(), key)); //NOI18N
 107
 108                                 // Get string from bundle and set it in properties
 109                                 properties.put(key, bundle.getString(key));
 110                         }
 111                 }
 112
 113                 // Handle it over to the mailer
 114                 this.mailer.init(properties);
 115
 116                 // Trace message
 117                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: EXIT!", this.getClass().getSimpleName())); //NOI18N
 118         }
 119
 120         @Override
 121         public void onMessage (final Message message) {
 122                 // Trace message
 123                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage: message={1} - CALLED!", this.getClass().getSimpleName(), message)); //NOI18N
 124
 125                 // The parameter should be valid
 126                 if (null == message) {
 127                         // Throw NPE
 128                         throw new NullPointerException("message is null"); //NOI18N
 129                 } else if (!(message instanceof ObjectMessage)) {
 130                         // Not implementing right interface
 131                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
 132                 }
 133
 134                 // Securely cast it
 135                 ObjectMessage objectMessage = (ObjectMessage) message;
 136
 137                 // Init variable
 138                 Serializable serializable;
 139
 140                 try {
 141                         // Get object from message
 142                         serializable = objectMessage.getObject();
 143                 } catch (final JMSException ex) {
 144                         // Log it and don't continue any further
 145                         this.getLoggerBeanLocal().logException(ex);
 146                         return;
 147                 }
 148
 149                 // Debug message
 150                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.onMessage: serializable={1}", this.getClass().getSimpleName(), serializable)); //NOI18N
 151
 152                 // Okay, is it the right interface?
 153                 if (null == serializable) {
 154                         // Throw NPE
 155                         throw new NullPointerException("serializable is null"); //NOI18N
 156                 } else if (!(serializable instanceof WrapableEmailDelivery)) {
 157                         // Not correct object send
 158                         throw new IllegalArgumentException(MessageFormat.format("serializable={0} does not implement WrapableEmailDelivery", serializable)); //NOI18N
 159                 }
 160
 161                 // Securely cast it
 162                 WrapableEmailDelivery wrapper = (WrapableEmailDelivery) serializable;
 163
 164                 // Is all required set?
 165                 if (wrapper.getLocale() == null) {
 166                         // Throw NPE
 167                         throw new NullPointerException("wrapper.locale is null"); //NOI18N
 168                 } else if (wrapper.getRecipient() == null) {
 169                         // Throw again ...
 170                         throw new NullPointerException("wrapper.recipient is null"); //NOI18N
 171                 } else if (wrapper.getSubjectLine() == null) {
 172                         // ... and again
 173                         throw new NullPointerException("wrapper.subjectLine is null"); //NOI18N
 174                 } else if (wrapper.getSubjectLine().isEmpty()) {
 175                         // Is empty
 176                         throw new IllegalArgumentException("wrapper.subjectLine is empty"); //NOI18N
 177                 } else if (wrapper.getTemplateName() == null) {
 178                         // Throw NPE again
 179                         throw new NullPointerException("wrapper.templateName is null"); //NOI18N
 180                 } else if (wrapper.getTemplateName().isEmpty()) {
 181                         // Is empty
 182                         throw new IllegalArgumentException("wrapper.templateName is empty"); //NOI18N
 183                 } else if (wrapper.getTemplateVariables() == null) {
 184                         // No template variables set, should not happen
 185                         throw new NullPointerException("wrapper.templateVariables is null"); //NOI18N
 186                 }
 187
 188                 try {
 189                         // Send email out
 190                         this.mailer.sendDeliverableMail(wrapper);
 191                 } catch (final MessagingException ex) {
 192                         // Opps, something went wrong
 193                         this.getLoggerBeanLocal().logException(ex);
 194                         return;
 195                 }
 196
 197                 // Trace message
 198                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage - EXIT!", this.getClass().getSimpleName())); //NOI18N
 199         }
 200 }