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 javax.ejb.ActivationConfigProperty;
  22 import javax.ejb.MessageDriven;
  23 import javax.jms.JMSException;
  24 import javax.jms.Message;
  25 import javax.jms.MessageListener;
  26 import javax.jms.ObjectMessage;
  27 import org.mxchange.addressbook.database.BaseAddressbookDatabaseBean;
  28
  29 /**
  30  * A message-driven bean for sending out emails
  31  * <p>
  32  * @author Roland Haeder<roland@mxchange.org>
  33  */
  34 @MessageDriven (activationConfig = {
  35         @ActivationConfigProperty (propertyName = "destinationLookup", propertyValue = "jms/jlandingpage-email-queue"),
  36         @ActivationConfigProperty (propertyName = "destinationType", propertyValue = "javax.jms.Queue")
  37 })
  38 public class EmailDeliveryMessageBean extends BaseAddressbookDatabaseBean implements MessageListener {
  39
  40         /**
  41          * Serial number
  42          */
  43         private static final long serialVersionUID = 75_638_176_619_024L;
  44
  45         /**
  46          * Mailer instance
  47          */
  48         private final DeliverableAddressbookEmail mailer;
  49
  50         /**
  51          * Default constructor
  52          */
  53         public EmailDeliveryMessageBean () {
  54                 // Init mailer instance
  55                 this.mailer = new AddressbookMailer();
  56         }
  57
  58         @Override
  59         public void onMessage (final Message message) {
  60                 // Trace message
  61                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("onMessage: message={0} - CALLED!", message)); //NOI18N
  62
  63                 // The parameter should be valid
  64                 if (null == message) {
  65                         // Throw NPE
  66                         throw new NullPointerException("message is null"); //NOI18N
  67                 } else if (!(message instanceof ObjectMessage)) {
  68                         // Not implementing right interface
  69                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
  70                 }
  71
  72                 // Securely cast it
  73                 ObjectMessage objectMessage = (ObjectMessage) message;
  74
  75                 // Init variable
  76                 Serializable serializable;
  77
  78                 try {
  79                         // Get object from message
  80                         serializable = objectMessage.getObject();
  81                 } catch (final JMSException ex) {
  82                         // Log it and don't continue any further
  83                         this.getLoggerBeanLocal().logException(ex);
  84                         return;
  85                 }
  86
  87                 // Debug message
  88                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("onMessage: serializable={0}", serializable)); //NOI18N
  89
  90                 // Trace message
  91                 this.getLoggerBeanLocal().logTrace("onMessage - EXIT!"); //NOI18N
  92         }
  93
  94 }