src/java/org/mxchange/jusercore/model/register/AddressbookUserRegistrationSessionBean.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.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-scoped 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         /**
  64          * Default constructor
  65          */
  66         public AddressbookUserRegistrationSessionBean () {
  67                 // Call super constructor
  68                 super();
  69         }
  70
  71         @Override
  72         public String generateConfirmationKey (final User user) {
  73                 // Trace message
  74                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.generateConfirmationKey: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
  75
  76                 // user should not be null
  77                 if (null == user) {
  78                         // Abort here
  79                         throw new NullPointerException("user is null"); //NOI18N
  80                 }
  81
  82                 // Create named instance
  83                 Query query = this.getEntityManager().createNamedQuery("SearchUserByConfirmKey", LoginUser.class); //NOI18N
  84
  85                 // Init confirmation key
  86                 String confirmationKey = null;
  87
  88                 // Find a free one
  89                 while (confirmationKey == null) {
  90                         // Create new one
  91                         String key = UserUtils.generatedConfirmationKey(user);
  92
  93                         // Set key as parameter
  94                         query.setParameter("confirmKey", key); //NOI18N
  95
  96                         // Try it
  97                         try {
  98                                 // Get contact instance
  99                                 Contact contact = (Contact) query.getSingleResult();
 100
 101                                 // Warning message
 102                                 this.getLoggerBeanLocal().logWarning(MessageFormat.format("{0}.generateConfirmationKey: key {1} already found: contact.contactId={2}", this.getClass().getSimpleName(), key, contact.getContactId())); //NOI18N
 103                         } catch (final NoResultException ex) {
 104                                 // Not found, normal case
 105                                 confirmationKey = key;
 106                                 break;
 107                         }
 108                 }
 109
 110                 // Log trace message
 111                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.generateConfirmationKey: confirmationKey={1} - EXIT!", this.getClass().getSimpleName(), confirmationKey)); //NOI18N
 112
 113                 // Return it
 114                 return confirmationKey;
 115         }
 116
 117         @Override
 118         public boolean isEmailAddressRegistered (final User user) {
 119                 // Trace message
 120                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.isEmailAddressRegistered: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
 121
 122                 // Check bean
 123                 assert (this.userBean instanceof UserSessionBeanRemote) : "this.userBean is not set"; //NOI18N
 124
 125                 // user should not be null
 126                 if (null == user) {
 127                         // Abort here
 128                         throw new NullPointerException("user is null"); //NOI18N
 129                 }
 130
 131                 // Call other bean
 132                 return this.userBean.isEmailAddressRegistered(user);
 133         }
 134
 135         @Override
 136         public boolean isUserNameRegistered (final User user) {
 137                 // Trace message
 138                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.isUserNameRegistered: user={1} - CALLED!", this.getClass().getSimpleName(), user)); //NOI18N
 139
 140                 // Check bean
 141                 assert (this.userBean instanceof UserSessionBeanRemote) : "this.userBean is not set"; //NOI18N
 142
 143                 // user should not be null
 144                 if (null == user) {
 145                         // Abort here
 146                         throw new NullPointerException("user is null"); //NOI18N
 147                 }
 148
 149                 // Call other bean
 150                 return this.userBean.isUserNameRegistered(user);
 151         }
 152
 153         @Override
 154         public User registerUser (final User user, final String baseUrl) throws UserNameAlreadyRegisteredException, EmailAddressAlreadyRegisteredException {
 155                 // Trace message
 156                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.registerUser: user={1},baseUrl={2} - CALLED!", this.getClass().getSimpleName(), user, baseUrl)); //NOI18N
 157
 158                 // user should not be null
 159                 if (null == user) {
 160                         // Abort here
 161                         throw new NullPointerException("user is null"); //NOI18N
 162                 } else if (user.getUserContact() == null) {
 163                         // Throw NPE again
 164                         throw new NullPointerException("user.userContact is null"); //NOI18N
 165                 } else if (user.getUserContact().getContactEmailAddress() == null) {
 166                         // Throw NPE again
 167                         throw new NullPointerException("user.userContact.contactEmailAddress is null"); //NOI18N
 168                 } else if (user.getUserContact().getContactEmailAddress().isEmpty()) {
 169                         // Is empty
 170                         throw new IllegalArgumentException("user.userContact.contactEmailAddress is empty"); //NOI18N
 171                 }
 172
 173                 // Check if user is registered
 174                 if (this.isUserNameRegistered(user)) {
 175                         // Abort here
 176                         throw new UserNameAlreadyRegisteredException(user);
 177                 } else if (this.isEmailAddressRegistered(user)) {
 178                         // Abort here
 179                         throw new EmailAddressAlreadyRegisteredException(user);
 180                 }
 181
 182                 // Call other EJB
 183                 User addedUser = this.adminUserBean.addUser(user);
 184
 185                 // Init variable
 186                 Address emailAddress;
 187
 188                 try {
 189                         // Create email address and set
 190                         emailAddress = new InternetAddress(addedUser.getUserContact().getContactEmailAddress());
 191                 } catch (final AddressException ex) {
 192                         // Throw again
 193                         throw new EJBException(ex);
 194                 }
 195
 196                 // Send email
 197                 // @TODO: Internationlize the subject line somehow
 198                 this.sendEmail("Registration", "registration", emailAddress, addedUser, baseUrl); //NOI18N
 199
 200                 // Trace message
 201                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.registerUser: addedUser={1},addedUser.userId={2} - EXIT!", this.getClass().getSimpleName(), addedUser, addedUser.getUserId())); //NOI18N
 202
 203                 // Return it
 204                 return addedUser;
 205         }
 206
 207 }