src/org/mxchange/addressbook/mailer/model/delivery/AddressbookMailer.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 General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (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 General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU 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.text.MessageFormat;
  20 import java.util.Map;
  21 import javax.annotation.Resource;
  22 import javax.mail.MessagingException;
  23 import javax.mail.Session;
  24 import org.apache.velocity.Template;
  25 import org.apache.velocity.VelocityContext;
  26 import org.mxchange.jmailee.model.delivery.BaseMailer;
  27 import org.mxchange.jmailee.model.delivery.wrapper.WrapableEmailDelivery;
  28
  29 /**
  30  * A mailer for JJobs project
  31  * <p>
  32  * @author Roland Häder<roland@mxchange.org>
  33  */
  34 public class AddressbookMailer extends BaseMailer implements DeliverableAddressbookEmail {
  35
  36         /**
  37          * Serial number
  38          */
  39         private static final long serialVersionUID = 17_857_816_596_030_918L;
  40
  41         /**
  42          * Email session
  43          */
  44         @Resource (name = "jmail/addressbook", description = "A JavaMail resource")
  45         private Session mailSession;
  46
  47         @Override
  48         public void sendDeliverableMail (final WrapableEmailDelivery emailWrapper) throws MessagingException {
  49                 // Log trace message
  50                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("sendDeliverableMail: emailWrapper={0} - CALLED!", emailWrapper)); //NOI18N
  51
  52                 // The parameter must be valid
  53                 if (null == emailWrapper) {
  54                         // Throw NPE
  55                         throw new NullPointerException("emailWrapper is null"); //NOI18N
  56                 } else if (emailWrapper.getRecipient() == null) {
  57                         // Throw NPE again
  58                         throw new NullPointerException("emailWrapper.recipient is null"); //NOI18N
  59                 } else if (emailWrapper.getSubjectLine() == null) {
  60                         // ... and again
  61                         throw new NullPointerException("emailWrapper.subjectLine is null"); //NOI18N
  62                 } else if (emailWrapper.getSubjectLine().isEmpty()) {
  63                         // Is empty
  64                         throw new IllegalArgumentException("emailWrapper.subjectLine is empty"); //NOI18N
  65                 } else if (emailWrapper.getTemplateName() == null) {
  66                         // ... and again
  67                         throw new NullPointerException("emailWrapper.templateName is null"); //NOI18N
  68                 } else if (emailWrapper.getTemplateName().isEmpty()) {
  69                         // Is empty
  70                         throw new IllegalArgumentException("emailWrapper.templateName is empty"); //NOI18N
  71                 } else if (emailWrapper.getLocale() == null) {
  72                         // Throw NPE again
  73                         throw new NullPointerException("emailWrapper.locale is null"); //NOI18N
  74                 } else if (!emailWrapper.getTemplateVariables().containsKey("baseUrl")) { //NOI18N
  75                         // Not set
  76                         throw new IllegalArgumentException("emailWrapper.templateVariables.baseUrl is not set"); //NOI18N
  77                 }
  78
  79                 // All required data is set, load template
  80                 Template template = this.getTemplateEngine().getTemplate(String.format("templates/%s/%s.vm", emailWrapper.getLocale().getLanguage().toLowerCase(), emailWrapper.getTemplateName())); //NOI18N
  81
  82                 // Init context
  83                 VelocityContext context = new VelocityContext();
  84
  85                 // Are some variables set?
  86                 if ((emailWrapper.getTemplateVariables() != null) && (!emailWrapper.getTemplateVariables().isEmpty())) {
  87                         // Add all variables
  88                         for (Map.Entry<Object, Object> entry : emailWrapper.getTemplateVariables().entrySet()) {
  89                                 // Get key/value
  90                                 String key = (String) entry.getKey();
  91                                 String value = (String) entry.getValue();
  92
  93                                 // Both should not be empty
  94                                 if (null == key) {
  95                                         // Throw NPE
  96                                         throw new NullPointerException("key is null"); //NOI18N
  97                                 } else if (null == value) {
  98                                         // Throw NPE again
  99                                         throw new NullPointerException(MessageFormat.format("value for key={0} is null", key)); //NOI18N
 100                                 }
 101
 102                                 // Set it
 103                                 context.put(key, value);
 104                         }
 105                 }
 106
 107                 // Send the email
 108                 this.sendMailTemplate(template, context, emailWrapper, this.mailSession);
 109
 110                 // Trace message
 111                 this.getLoggerBeanLocal().logTrace("sendDeliverableMail: EXIT!"); //NOI18N
 112         }
 113
 114 }