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 javax.ejb.ActivationConfigProperty;
  22 import javax.ejb.EJB;
  23 import javax.ejb.MessageDriven;
  24 import javax.jms.JMSException;
  25 import javax.jms.Message;
  26 import javax.jms.MessageListener;
  27 import javax.jms.ObjectMessage;
  28 import javax.mail.MessagingException;
  29 import javax.naming.NamingException;
  30 import org.mxchange.jcoreee.database.BaseDatabaseBean;
  31 import org.mxchange.jmailee.model.delivery.wrapper.WrapableEmailDelivery;
  32
  33 /**
  34  * A message-driven bean for sending out mails
  35  * <p>
  36  * @author Roland Häder<roland@mxchange.org>
  37  */
  38 @MessageDriven (
  39                 name = "addressbookEmailDelivery",
  40                 description = "A message bean for email delivery",
  41                 activationConfig = {
  42                         @ActivationConfigProperty (propertyName = "destinationLookup", propertyValue = "jms/addressbook-email-queue"),
  43                         @ActivationConfigProperty (propertyName = "destinationType", propertyValue = "javax.jms.Queue")
  44                 })
  45 public class AddressbookEmailDeliveryMessageBean extends BaseDatabaseBean implements MessageListener {
  46
  47         /**
  48          * Serial number
  49          */
  50         private static final long serialVersionUID = 75_638_176_619_024L;
  51
  52         /**
  53          * Mailer instance
  54          */
  55         @EJB
  56         private DeliverableAddressbookEmailRemote mailerBean;
  57
  58         /**
  59          * Default constructor
  60          * <p>
  61          * @throws javax.naming.NamingException If a JNDI name could not be found
  62          */
  63         public AddressbookEmailDeliveryMessageBean () throws NamingException {
  64                 // Call super constructor
  65                 super();
  66         }
  67
  68         @Override
  69         public void onMessage (final Message message) {
  70                 // Trace message
  71                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage: message={1} - CALLED!", this.getClass().getSimpleName(), message)); //NOI18N
  72
  73                 // The parameter should be valid
  74                 if (null == message) {
  75                         // Throw NPE
  76                         throw new NullPointerException("message is null"); //NOI18N
  77                 } else if (!(message instanceof ObjectMessage)) {
  78                         // Not implementing right interface
  79                         throw new IllegalArgumentException(MessageFormat.format("message={0} does not implemented ObjectMessage", message)); //NOI18N
  80                 }
  81
  82                 // Securely cast it
  83                 ObjectMessage objectMessage = (ObjectMessage) message;
  84
  85                 // Init variable
  86                 Serializable serializable;
  87
  88                 try {
  89                         // Get object from message
  90                         serializable = objectMessage.getObject();
  91                 } catch (final JMSException ex) {
  92                         // Log it and don't continue any further
  93                         this.getLoggerBeanLocal().logException(ex);
  94                         return;
  95                 }
  96
  97                 // Debug message
  98                 this.getLoggerBeanLocal().logDebug(MessageFormat.format("{0}.onMessage: serializable={1}", this.getClass().getSimpleName(), serializable)); //NOI18N
  99
 100                 // Okay, is it the right interface?
 101                 if (null == serializable) {
 102                         // Throw NPE
 103                         throw new NullPointerException("serializable is null"); //NOI18N
 104                 } else if (!(serializable instanceof WrapableEmailDelivery)) {
 105                         // Not correct object send
 106                         throw new IllegalArgumentException(MessageFormat.format("serializable={0} does not implement WrapableEmailDelivery", serializable)); //NOI18N
 107                 }
 108
 109                 // Securely cast it
 110                 WrapableEmailDelivery wrapper = (WrapableEmailDelivery) serializable;
 111
 112                 // Is all required set?
 113                 if (wrapper.getLocale() == null) {
 114                         // Throw NPE
 115                         throw new NullPointerException("wrapper.locale is null"); //NOI18N
 116                 } else if (wrapper.getRecipientAddress() == null) {
 117                         // Throw again ...
 118                         throw new NullPointerException("wrapper.recipientAddress is null"); //NOI18N
 119                 } else if (wrapper.getSubjectLine() == null) {
 120                         // ... and again
 121                         throw new NullPointerException("wrapper.subjectLine is null"); //NOI18N
 122                 } else if (wrapper.getSubjectLine().isEmpty()) {
 123                         // Is empty
 124                         throw new IllegalArgumentException("wrapper.subjectLine is empty"); //NOI18N
 125                 } else if (wrapper.getTemplateName() == null) {
 126                         // Throw NPE again
 127                         throw new NullPointerException("wrapper.templateName is null"); //NOI18N
 128                 } else if (wrapper.getTemplateName().isEmpty()) {
 129                         // Is empty
 130                         throw new IllegalArgumentException("wrapper.templateName is empty"); //NOI18N
 131                 }
 132
 133                 try {
 134                         // Send email out
 135                         this.mailerBean.sendDeliverableMail(wrapper);
 136                 } catch (final MessagingException ex) {
 137                         // Opps, something went wrong
 138                         this.getLoggerBeanLocal().logException(ex);
 139                         return;
 140                 }
 141
 142                 // Trace message
 143                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.onMessage - EXIT!", this.getClass().getSimpleName())); //NOI18N
 144         }
 145
 146 }