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