src/java/org/mxchange/jmailee/model/delivery/JobsEmailDeliveryMessageBean.java

   1 /*
   2  * Copyright (C) 2016 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.jmailee.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.jjobs.database.BaseJobsDatabaseBean;
  32 import org.mxchange.jjobsmailer.model.delivery.DeliverableJobsEmail;
  33 import org.mxchange.jjobsmailer.model.delivery.JobsMailer;
  34 import org.mxchange.jmailee.model.delivery.wrapper.WrapableEmailDelivery;
  35
  36 /**
  37  * A message queue for sending out emails
  38  * <p>
  39  * @author Roland Häder<roland@mxchange.org>
  40  */
  41 @MessageDriven (
  42                 name = "jjobsEmail",
  43                 description = "A message bean for email delivery",
  44                 activationConfig = {
  45                         @ActivationConfigProperty (propertyName = "destinationLookup", propertyValue = "jms/jjobs-email-queue"),
  46                         @ActivationConfigProperty (propertyName = "destinationType", propertyValue = "javax.jms.Queue")
  47                 })
  48 public class JobsEmailDeliveryMessageBean extends BaseJobsDatabaseBean implements MessageListener {
  49
  50         /**
  51          * Serial number
  52          */
  53         private static final long serialVersionUID = 75_638_176_619_024L;
  54
  55         /**
  56          * Configuration file
  57          */
  58         private final String configFile = "org.mxchange.jmailer.config"; //NOI18N
  59
  60         /**
  61          * Mailer instance
  62          */
  63         private final DeliverableJobsEmail mailer;
  64
  65         /**
  66          * Default constructor
  67          */
  68         public JobsEmailDeliveryMessageBean () {
  69                 // Init mailer instance
  70                 this.mailer = new JobsMailer();
  71         }
  72
  73         /**
  74          * Post-construction
  75          */
  76         @PostConstruct
  77         public void init () {
  78                 // Trace message
  79                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: CALLED!", this.getClass().getSimpleName())); //NOI18N
  80
  81                 // Try to load bundle
  82                 ResourceBundle bundle = ResourceBundle.getBundle(this.configFile);
  83
  84                 // Debug message
  85                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: bundle={1}", this.getClass().getSimpleName(), bundle)); //NOI18N
  86
  87                 // The bunble should be valid
  88                 if (null == bundle) {
  89                         // Throw NPE
  90                         throw new NullPointerException(MessageFormat.format("bundle is null, maybe file {0} does not exist?", this.configFile)); //NOI18N
  91                 }
  92
  93                 // Init Properties
  94                 Properties properties = new Properties();
  95
  96                 // Is the bundle not empty?
  97                 if (!bundle.keySet().isEmpty()) {
  98                         // Loop through all
  99                         for (final String key : bundle.keySet()) {
 100                                 // Log debug message
 101                                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.init: key={1}", this.getClass().getSimpleName(), key)); //NOI18N
 102
 103                                 // Get string from bundle and set it in properties
 104                                 properties.put(key, bundle.getString(key));
 105                         }
 106                 }
 107
 108                 // Handle it over to the mailer
 109                 this.mailer.init(properties);
 110
 111                 // Trace message
 112                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.init: EXIT!", this.getClass().getSimpleName())); //NOI18N
 113         }
 114
 115         @Override
 116         public void onMessage (final Message message) {
 117                 // Trace message
 118                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage: message={1} - CALLED!", this.getClass().getSimpleName(), message)); //NOI18N
 119
 120                 // The parameter should be valid
 121                 if (null == message) {
 122                         // Throw NPE
 123                         throw new NullPointerException("message is null"); //NOI18N
 124                 } else if (!(message instanceof ObjectMessage)) {
 125                         // Not implementing right interface
 126                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
 127                 }
 128
 129                 // Securely cast it
 130                 ObjectMessage objectMessage = (ObjectMessage) message;
 131
 132                 // Init variable
 133                 Serializable serializable;
 134
 135                 try {
 136                         // Get object from message
 137                         serializable = objectMessage.getObject();
 138                 } catch (final JMSException ex) {
 139                         // Log it and don't continue any further
 140                         this.getLoggerBeanLocal().logException(ex);
 141                         return;
 142                 }
 143
 144                 // Debug message
 145                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.onMessage: serializable={1}", this.getClass().getSimpleName(), serializable)); //NOI18N
 146
 147                 // Okay, is it the right interface?
 148                 if (null == serializable) {
 149                         // Throw NPE
 150                         throw new NullPointerException("serializable is null"); //NOI18N
 151                 } else if (!(serializable instanceof WrapableEmailDelivery)) {
 152                         // Not correct object send
 153                         throw new IllegalArgumentException(MessageFormat.format("serializable={0} does not implement WrapableEmailDelivery", serializable)); //NOI18N
 154                 }
 155
 156                 // Securely cast it
 157                 WrapableEmailDelivery wrapper = (WrapableEmailDelivery) serializable;
 158
 159                 // Is all required set?
 160                 if (wrapper.getLocale() == null) {
 161                         // Throw NPE
 162                         throw new NullPointerException("wrapper.locale is null"); //NOI18N
 163                 } else if (wrapper.getRecipient() == null) {
 164                         // Throw again ...
 165                         throw new NullPointerException("wrapper.recipient is null"); //NOI18N
 166                 } else if (wrapper.getSubjectLine() == null) {
 167                         // ... and again
 168                         throw new NullPointerException("wrapper.subjectLine is null"); //NOI18N
 169                 } else if (wrapper.getSubjectLine().isEmpty()) {
 170                         // Is empty
 171                         throw new IllegalArgumentException("wrapper.subjectLine is empty"); //NOI18N
 172                 } else if (wrapper.getTemplateName() == null) {
 173                         // Throw NPE again
 174                         throw new NullPointerException("wrapper.templateName is null"); //NOI18N
 175                 } else if (wrapper.getTemplateName().isEmpty()) {
 176                         // Is empty
 177                         throw new IllegalArgumentException("wrapper.templateName is empty"); //NOI18N
 178                 } else if (wrapper.getTemplateVariables() == null) {
 179                         // No template variables set, should not happen
 180                         throw new NullPointerException("wrapper.templateVariables is null"); //NOI18N
 181                 }
 182
 183                 try {
 184                         // Send email out
 185                         this.mailer.sendDeliverableMail(wrapper);
 186                 } catch (final MessagingException ex) {
 187                         // Opps, something went wrong
 188                         this.getLoggerBeanLocal().logException(ex);
 189                         return;
 190                 }
 191
 192                 // Trace message
 193                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage - EXIT!", this.getClass().getSimpleName())); //NOI18N
 194         }
 195
 196 }