src/java/org/mxchange/jusercore/model/register/AddressbookUserRegistrationSessionBean.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.jusercore.model.register;
  18
  19 import java.text.MessageFormat;
  20 import javax.ejb.EJB;
  21 import javax.ejb.EJBException;
  22 import javax.ejb.Stateless;
  23 import javax.mail.Address;
  24 import javax.mail.internet.AddressException;
  25 import javax.mail.internet.InternetAddress;
  26 import javax.persistence.NoResultException;
  27 import javax.persistence.Query;
  28 import org.mxchange.addressbook.database.BaseAddressbookDatabaseBean;
  29 import org.mxchange.jcontacts.contact.Contact;
  30 import org.mxchange.jusercore.exceptions.EmailAddressAlreadyRegisteredException;
  31 import org.mxchange.jusercore.exceptions.UserNameAlreadyRegisteredException;
  32 import org.mxchange.jusercore.model.user.AdminUserSessionBeanRemote;
  33 import org.mxchange.jusercore.model.user.LoginUser;
  34 import org.mxchange.jusercore.model.user.User;
  35 import org.mxchange.jusercore.model.user.UserSessionBeanRemote;
  36 import org.mxchange.jusercore.model.user.UserUtils;
  37
  38 /**
  39  * A session bean for user registration
  40  * <p>
  41  * @author Roland Häder<roland@mxchange.org>
  42  */
  43 @Stateless (name = "register", description = "A bean handling the user registration")
  44 public class AddressbookUserRegistrationSessionBean extends BaseAddressbookDatabaseBean implements UserRegistrationSessionBeanRemote {
  45
  46         /**
  47          * Serial number
  48          */
  49         private static final long serialVersionUID = 12_348_958_986_818_627L;
  50
  51         /**
  52          * Administrative user bean
  53          */
  54         @EJB
  55         private AdminUserSessionBeanRemote adminUserBean;
  56
  57         /**
  58          * Regular user EJB
  59          */
  60         @EJB
  61         private UserSessionBeanRemote userBean;
  62
  63         @Override
  64         public String generateConfirmationKey (final User user) {
  65                 // Trace message
  66                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.generateConfirmationKey: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
  67
  68                 // user should not be null
  69                 if (null == user) {
  70                         // Abort here
  71                         throw new NullPointerException("user is null"); //NOI18N
  72                 }
  73
  74                 // Create named instance
  75                 Query query = this.getEntityManager().createNamedQuery("SearchUserByConfirmKey", LoginUser.class); //NOI18N
  76
  77                 // Init confirmation key
  78                 String confirmationKey = null;
  79
  80                 // Find a free one
  81                 while (confirmationKey == null) {
  82                         // Create new one
  83                         String key = UserUtils.generatedConfirmationKey(user);
  84
  85                         // Set key as parameter
  86                         query.setParameter("confirmKey", key); //NOI18N
  87
  88                         // Try it
  89                         try {
  90                                 // Get contact instance
  91                                 Contact contact = (Contact) query.getSingleResult();
  92
  93                                 // Warning message
  94                                 this.getLoggerBeanLocal().logWarning(MessageFormat.format("{0}.generateConfirmationKey: key {1} already found: contact.contactId={2}", this.getClass().getSimpleName(), key, contact.getContactId())); //NOI18N
  95                         } catch (final NoResultException ex) {
  96                                 // Not found, normal case
  97                                 confirmationKey = key;
  98                                 break;
  99                         }
 100                 }
 101
 102                 // Log trace message
 103                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.generateConfirmationKey: confirmationKey={1} - EXIT!", this.getClass().getSimpleName(), confirmationKey)); //NOI18N
 104
 105                 // Return it
 106                 return confirmationKey;
 107         }
 108
 109         @Override
 110         public boolean isEmailAddressRegistered (final User user) {
 111                 // Trace message
 112                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.isEmailAddressRegistered: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
 113
 114                 // Check bean
 115                 assert (this.userBean instanceof UserSessionBeanRemote) : "this.userBean is not set"; //NOI18N
 116
 117                 // user should not be null
 118                 if (null == user) {
 119                         // Abort here
 120                         throw new NullPointerException("user is null"); //NOI18N
 121                 }
 122
 123                 // Call other bean
 124                 return this.userBean.isEmailAddressRegistered(user);
 125         }
 126
 127         @Override
 128         public boolean isUserNameRegistered (final User user) {
 129                 // Trace message
 130                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.isUserNameRegistered: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
 131
 132                 // Check bean
 133                 assert (this.userBean instanceof UserSessionBeanRemote) : "this.userBean is not set"; //NOI18N
 134
 135                 // user should not be null
 136                 if (null == user) {
 137                         // Abort here
 138                         throw new NullPointerException("user is null"); //NOI18N
 139                 }
 140
 141                 // Call other bean
 142                 return this.userBean.isUserNameRegistered(user);
 143         }
 144
 145         @Override
 146         public User registerUser (final User user, final String baseUrl) throws UserNameAlreadyRegisteredException, EmailAddressAlreadyRegisteredException {
 147                 // Trace message
 148                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.registerUser: user={1},baseUrl={2} - CALLED!", this.getClass().getSimpleName(), user, baseUrl)); //NOI18N
 149
 150                 // user should not be null
 151                 if (null == user) {
 152                         // Abort here
 153                         throw new NullPointerException("user is null"); //NOI18N
 154                 } else if (user.getUserContact() == null) {
 155                         // Throw NPE again
 156                         throw new NullPointerException("user.userContact is null"); //NOI18N
 157                 } else if (user.getUserContact().getContactEmailAddress() == null) {
 158                         // Throw NPE again
 159                         throw new NullPointerException("user.userContact.contactEmailAddress is null"); //NOI18N
 160                 } else if (user.getUserContact().getContactEmailAddress().isEmpty()) {
 161                         // Is empty
 162                         throw new IllegalArgumentException("user.userContact.contactEmailAddress is empty"); //NOI18N
 163                 }
 164
 165                 // Check if user is registered
 166                 if (this.isUserNameRegistered(user)) {
 167                         // Abort here
 168                         throw new UserNameAlreadyRegisteredException(user);
 169                 } else if (this.isEmailAddressRegistered(user)) {
 170                         // Abort here
 171                         throw new EmailAddressAlreadyRegisteredException(user);
 172                 }
 173
 174                 // Call other EJB
 175                 User addedUser = this.adminUserBean.addUser(user);
 176
 177                 // Init variable
 178                 Address emailAddress;
 179
 180                 try {
 181                         // Create email address and set
 182                         emailAddress = new InternetAddress(addedUser.getUserContact().getContactEmailAddress());
 183                 } catch (final AddressException ex) {
 184                         // Throw again
 185                         throw new EJBException(ex);
 186                 }
 187
 188                 // Send email
 189                 // TODO: Internationlize the subject line somehow
 190                 this.sendEmail("Registration", "registration", emailAddress, addedUser, baseUrl); //NOI18N
 191
 192                 // Trace message
 193                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.registerUser: addedUser={1},addedUser.userId={2} - EXIT!", this.getClass().getSimpleName(), addedUser, addedUser.getUserId())); //NOI18N
 194
 195                 // Return it
 196                 return addedUser;
 197         }
 198
 199 }