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.BaseAddressbookController;
  30 import org.mxchange.addressbook.beans.login.AddressbookUserLoginWebSessionController;
  31 import org.mxchange.jcontacts.contact.Contact;
  32 import org.mxchange.jcoreee.utils.FacesUtils;
  33 import org.mxchange.jusercore.exceptions.UserPasswordMismatchException;
  34 import org.mxchange.jusercore.model.email_address.ChangeableEmailAddress;
  35 import org.mxchange.jusercore.model.email_address.EmailAddressChange;
  36 import org.mxchange.jusercore.model.email_address.EmailChangeSessionBeanRemote;
  37 import org.mxchange.jusercore.model.user.User;
  38
  39 /**
  40  * A web session bean for changing email addresses
  41  * <p>
  42  * @author Roland Haeder<roland@mxchange.org>
  43  */
  44 @Named ("emailChangeController")
  45 @SessionScoped
  46 public class AddressbookEmailChangeWebSessionBean extends BaseAddressbookController implements AddressbookEmailChangeWebSessionController {
  47
  48         /**
  49          * Serial number
  50          */
  51         private static final long serialVersionUID = 186_078_724_659_153L;
  52
  53         /**
  54          * Email address 1 (changing)
  55          */
  56         private String emailAddress;
  57
  58         /**
  59          * Email address 2 (repeat in changing)
  60          */
  61         private String emailAddressRepeat;
  62
  63         /**
  64          * Local list of already queued email addresses
  65          */
  66         private List<String> emailAddresses;
  67
  68         /**
  69          * Remote email change bean
  70          */
  71         private final EmailChangeSessionBeanRemote emailBean;
  72
  73         /**
  74          * Login bean (controller)
  75          */
  76         @Inject
  77         private AddressbookUserLoginWebSessionController loginController;
  78
  79         /**
  80          * Default constructor
  81          */
  82         public AddressbookEmailChangeWebSessionBean () {
  83                 // Try it
  84                 try {
  85                         // Get initial context
  86                         Context context = new InitialContext();
  87
  88                         // Try to lookup
  89                         this.emailBean = (EmailChangeSessionBeanRemote) context.lookup("java:global/addressbook-ejb/email-change!org.mxchange.jusercore.model.email_address.EmailChangeSessionBeanRemote"); //NOI18N
  90
  91                         // Init list
  92                         this.emailAddresses = this.emailBean.allQueuedAddresses();
  93                 } catch (final NamingException e) {
  94                         // Throw again
  95                         throw new FaceletException(e);
  96                 }
  97         }
  98
  99         @Override
 100         public String doChangeEmailAddress () {
 101                 // This method shall only be called if the user is logged-in
 102                 if (!this.loginController.isUserLoggedIn()) {
 103                         // Not logged-in
 104                         throw new IllegalStateException("User is not logged-in"); //NOI18N
 105                 } else if (!this.isRequiredChangeEmailAddressSet()) {
 106                         // Not all required fields are set
 107                         throw new FaceletException("Not all required fields are set."); //NOI18N
 108                 } else if (!Objects.equals(this.getEmailAddress(), this.getEmailAddressRepeat())) {
 109                         // Email address 1+2 mismatch
 110                         throw new FaceletException("Email address 1/2 are mismatching."); //NOI18N
 111                 } else if (!this.loginController.ifCurrentPasswordMatches()) {
 112                         // Password not matching
 113                         throw new FaceletException(new UserPasswordMismatchException(this.loginController.getLoggedInUser()));
 114                 }
 115
 116                 // Get user instance
 117                 User user = this.loginController.getLoggedInUser();
 118
 119                 // It should be there, so run some tests on it
 120                 assert (user instanceof User) : "Instance loginController.loggedInUser is null"; //NOI18N
 121                 assert (user.getUserId() instanceof Long) : "Instance loginController.loggedInUser.userId is null"; //NOI18N
 122                 assert (user.getUserId() > 0) : MessageFormat.format("loginController.loggedInUser.userId={0} is invalid", user.getUserId()); //NOI18N
 123                 assert (user.getUserContact() instanceof Contact) : "Instance loginController.loggedInUser.userContact is null"; //NOI18N
 124                 assert (user.getUserContact().getContactId() instanceof Long) : "Instance loginController.userContact.contactId is null"; //NOI18N
 125                 assert (user.getUserContact().getContactId() > 0) : MessageFormat.format("Instance loginController.userContact.contactId={0} is invalid", user.getUserContact().getContactId()); //NOI18N
 126
 127                 // Check if the email address is already enqueued
 128                 if (this.isEmailAddressQueued(this.getEmailAddress())) {
 129                         // Yes, then abort here
 130                         return "login_email_already_added"; //NOI18N
 131                 }
 132
 133                 // Create change object, to save EJB calls, the hash is not generated here
 134                 ChangeableEmailAddress emailChange = new EmailAddressChange(user, this.getEmailAddress());
 135
 136                 // Get base URL
 137                 String baseUrl = FacesUtils.generateBaseUrl();
 138
 139                 // Call EJB
 140                 this.emailBean.enqueueEmailAddressForChange(emailChange, baseUrl);
 141
 142                 // Unset all so the user is forced to re-enter it
 143                 this.clear();
 144
 145                 // All fine
 146                 return "login_email_change_queued"; //NOI18N
 147         }
 148
 149         @Override
 150         public String getEmailAddress () {
 151                 return this.emailAddress;
 152         }
 153
 154         @Override
 155         public void setEmailAddress (final String emailAddress) {
 156                 this.emailAddress = emailAddress;
 157         }
 158
 159         @Override
 160         public String getEmailAddressRepeat () {
 161                 return this.emailAddressRepeat;
 162         }
 163
 164         @Override
 165         public void setEmailAddressRepeat (final String emailAddressRepeat) {
 166                 this.emailAddressRepeat = emailAddressRepeat;
 167         }
 168
 169         @Override
 170         public boolean isRequiredChangeEmailAddressSet () {
 171                 return ((this.getEmailAddress() != null) &&
 172                                 (this.getEmailAddressRepeat() != null));
 173         }
 174
 175         /**
 176          * Clears email address fields so the user has to re-enter them
 177          */
 178         private void clear () {
 179                 // Clear fields
 180                 this.setEmailAddress(null);
 181                 this.setEmailAddressRepeat(null);
 182         }
 183
 184         /**
 185          * Checks if given email address has already been queued. First a local list
 186          * is being checked, if not found, the EJB is called. Only if found, the
 187          * result is "cached" in the list.
 188          * <p>
 189          * @param emailAddress Email address to verify
 190          * <p>
 191          * @return Whether the email address in field emailAddress is already queued
 192          */
 193         private boolean isEmailAddressQueued (final String emailAddress) {
 194                 // It should be there
 195                 assert (emailAddress != null) : "emailAddress should not be null"; //NOI18N
 196                 assert (!emailAddress.trim().isEmpty()) : "emailAddress should not be empty"; //NOI18N
 197
 198                 // Check list
 199                 if (this.emailAddresses.contains(emailAddress)) {
 200                         // Okay, found it
 201                         return true;
 202                 }
 203
 204                 // Check EJB
 205                 boolean isQueued = this.emailBean.isEmailAddressEnqueued(emailAddress);
 206
 207                 // Is it there?
 208                 if (isQueued) {
 209                         // Add to list
 210                         this.emailAddresses.add(emailAddress);
 211                 }
 212
 213                 // Return status
 214                 return isQueued;
 215         }
 216
 217 }