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