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