src/java/org/mxchange/addressbook/beans/email_address/EmailChangeWebSessionBean.java

   1 /*
   2  * Copyright (C) 2016 quix0r
   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.beans.email_address;
  18
  19 import java.text.MessageFormat;
  20 import java.util.GregorianCalendar;
  21 import java.util.List;
  22 import java.util.Objects;
  23 import javax.enterprise.context.SessionScoped;
  24 import javax.faces.view.facelets.FaceletException;
  25 import javax.inject.Inject;
  26 import javax.inject.Named;
  27 import javax.naming.Context;
  28 import javax.naming.InitialContext;
  29 import javax.naming.NamingException;
  30 import org.mxchange.addressbook.beans.login.UserLoginWebSessionController;
  31 import org.mxchange.jcontacts.contact.Contact;
  32 import org.mxchange.jusercore.exceptions.UserPasswordMismatchException;
  33 import org.mxchange.jusercore.model.email_address.ChangeableEmailAddress;
  34 import org.mxchange.jusercore.model.email_address.EmailAddressChange;
  35 import org.mxchange.jusercore.model.email_address.EmailChangeSessionBeanRemote;
  36 import org.mxchange.jusercore.model.user.User;
  37
  38 /**
  39  * A web session bean for changing email addresses
  40  * <p>
  41  * @author Roland Haeder<roland@mxchange.org>
  42  */
  43 @Named ("emailChangeController")
  44 @SessionScoped
  45 public class EmailChangeWebSessionBean implements EmailChangeWebSessionController {
  46
  47         /**
  48          * Serial number
  49          */
  50         private static final long serialVersionUID = 186_078_724_659_153L;
  51
  52         /**
  53          * Email address 1 (changing)
  54          */
  55         private String emailAddress1;
  56
  57         /**
  58          * Email address 2 (repeat in changing)
  59          */
  60         private String emailAddress2;
  61
  62         /**
  63          * Local list of already queued email addresses
  64          */
  65         private List<String> emailAddresses;
  66
  67         /**
  68          * Remote email change bean
  69          */
  70         private final EmailChangeSessionBeanRemote emailBean;
  71
  72         /**
  73          * Login bean (controller)
  74          */
  75         @Inject
  76         private UserLoginWebSessionController loginController;
  77
  78         /**
  79          * Default constructor
  80          */
  81         public EmailChangeWebSessionBean () {
  82                 // Try it
  83                 try {
  84                         // Get initial context
  85                         Context context = new InitialContext();
  86
  87                         // Try to lookup
  88                         this.emailBean = (EmailChangeSessionBeanRemote) context.lookup("ejb/stateless-jjobs-email-change"); //NOI18N
  89
  90                         // Init list
  91                         this.emailAddresses = this.emailBean.allQueuedAddressesAsList();
  92                 } catch (final NamingException e) {
  93                         // Throw again
  94                         throw new FaceletException(e);
  95                 }
  96         }
  97
  98         @Override
  99         public String doChangeEmailAddress () {
 100                 // This method shall only be called if the user is logged-in
 101                 if (!this.loginController.isUserLoggedIn()) {
 102                         // Not logged-in
 103                         throw new IllegalStateException("User is not logged-in"); //NOI18N
 104                 } else if (!this.isRequiredChangeEmailAddressSet()) {
 105                         // Not all required fields are set
 106                         throw new FaceletException("Not all required fields are set."); //NOI18N
 107                 } else if (!Objects.equals(this.getEmailAddress1(), this.getEmailAddress2())) {
 108                         // Email address 1+2 mismatch
 109                         throw new FaceletException("Email address 1/2 are mismatching."); //NOI18N
 110                 } else if (!this.loginController.ifCurrentPasswordMatches()) {
 111                         // Password not matching
 112                         throw new FaceletException(new UserPasswordMismatchException(this.loginController.getLoggedInUser()));
 113                 }
 114
 115                 // Get user instance
 116                 User user = this.loginController.getLoggedInUser();
 117
 118                 // It should be there, so run some tests on it
 119                 assert (user instanceof User) : "Instance loginController.loggedInUser is null"; //NOI18N
 120                 assert (user.getUserId() instanceof Long) : "Instance loginController.loggedInUser.userId is null"; //NOI18N
 121                 assert (user.getUserId() > 0) : MessageFormat.format("loginController.loggedInUser.userId={0} is invalid", user.getUserId()); //NOI18N
 122                 assert (user.getUserContact() instanceof Contact) : "Instance loginController.loggedInUser.userContact is null"; //NOI18N
 123                 assert (user.getUserContact().getContactId() instanceof Long) : "Instance loginController.userContact.contactId is null"; //NOI18N
 124                 assert (user.getUserContact().getContactId() > 0) : MessageFormat.format("Instance loginController.userContact.contactId={0} is invalid", user.getUserContact().getContactId()); //NOI18N
 125
 126                 // Get dummy email address
 127                 String dummyEmail = this.getEmailAddress1();
 128
 129                 // Unset all so the user is forced to re-enter it
 130                 this.clear();
 131
 132                 // Check if the email address is already enqueued
 133                 if (this.isEmailAddressQueued(dummyEmail)) {
 134                         // Yes, then abort here
 135                         return "login_email_already_added"; //NOI18N
 136                 }
 137
 138                 // Create change object, to save EJB calls, the hash is not generated here
 139                 ChangeableEmailAddress emailAddress = new EmailAddressChange(user, dummyEmail, new GregorianCalendar());
 140
 141                 // Call EJB
 142                 this.emailBean.enqueueEmailAddressForChange(emailAddress);
 143
 144                 // All fine
 145                 return "login_email_change_queued"; //NOI18N
 146         }
 147
 148         @Override
 149         public String getEmailAddress1 () {
 150                 return this.emailAddress1;
 151         }
 152
 153         @Override
 154         public void setEmailAddress1 (final String emailAddress1) {
 155                 this.emailAddress1 = emailAddress1;
 156         }
 157
 158         @Override
 159         public String getEmailAddress2 () {
 160                 return this.emailAddress2;
 161         }
 162
 163         @Override
 164         public void setEmailAddress2 (final String emailAddress2) {
 165                 this.emailAddress2 = emailAddress2;
 166         }
 167
 168         @Override
 169         public boolean isRequiredChangeEmailAddressSet () {
 170                 return ((this.getEmailAddress1() != null) &&
 171                                 (this.getEmailAddress2() != null));
 172         }
 173
 174         /**
 175          * Clears email address fields so the user has to re-enter them
 176          */
 177         private void clear () {
 178                 // Clear fields
 179                 this.setEmailAddress1(null);
 180                 this.setEmailAddress2(null);
 181         }
 182
 183         /**
 184          * Checks if given email address has already been queued. First a local list
 185          * is being checked, if not found, the EJB is called. Only if found, the
 186          * result is "cached" in the list.
 187          * <p>
 188          * @param emailAddress Email address to verify
 189          * <p>
 190          * @return Whether the email address in field emailAddress1 is already queued
 191          */
 192         private boolean isEmailAddressQueued (final String emailAddress) {
 193                 // It should be there
 194                 assert (emailAddress != null) : "emailAddress should not be null"; //NOI18N
 195                 assert (!emailAddress.trim().isEmpty()) : "emailAddress should not be empty"; //NOI18N
 196
 197                 // Check list
 198                 if (this.emailAddresses.contains(emailAddress)) {
 199                         // Okay, found it
 200                         return true;
 201                 }
 202
 203                 // Check EJB
 204                 boolean isQueued = this.emailBean.isEmailAddressEnqueued(emailAddress);
 205
 206                 // Is it there?
 207                 if (isQueued) {
 208                         // Add to list
 209                         this.emailAddresses.add(emailAddress);
 210                 }
 211
 212                 // Return status
 213                 return isQueued;
 214         }
 215
 216 }