src/java/org/mxchange/addressbook/beans/addressbook/AddressbookWebBean.java

   1 /*
   2  * Copyright (C) 2015 Roland Haeder
   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.addressbook;
  18
  19 import java.text.MessageFormat;
  20 import java.util.ArrayList;
  21 import java.util.GregorianCalendar;
  22 import java.util.List;
  23 import javax.annotation.PostConstruct;
  24 import javax.enterprise.context.SessionScoped;
  25 import javax.faces.view.facelets.FaceletException;
  26 import javax.inject.Inject;
  27 import javax.inject.Named;
  28 import javax.naming.Context;
  29 import javax.naming.InitialContext;
  30 import javax.naming.NamingException;
  31 import org.mxchange.addressbook.beans.login.UserLoginWebController;
  32 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  33 import org.mxchange.addressbook.model.addressbook.Addressbook;
  34 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  35 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  36 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  37
  38 /**
  39  * A user bean (controller)
  40  * <p>
  41  * @author Roland Haeder<roland@mxchange.org>
  42  */
  43 @Named ("addressbookController")
  44 @SessionScoped
  45 public class AddressbookWebBean implements AddressbookWebController {
  46
  47         /**
  48          * Serial number
  49          */
  50         private static final long serialVersionUID = 185_781_756_712_969L;
  51
  52         /////////////////////// Properties /////////////////////
  53         /**
  54          * A list of all user's address books
  55          */
  56         private List<Addressbook> addressbookList;
  57
  58         /**
  59          * Name of the address book
  60          */
  61         private String addressbookName;
  62
  63         /**
  64          * Remote address book bean
  65          */
  66         private final AddressbookSessionBeanRemote addressbookBean;
  67
  68         /**
  69          * Login controller
  70          */
  71         @Inject
  72         private UserLoginWebController loginController;
  73
  74         /**
  75          * Default constructor
  76          */
  77         public AddressbookWebBean () {
  78                 // Try it
  79                 try {
  80                         // Get initial context
  81                         Context context = new InitialContext();
  82
  83                         // Try to lookup
  84                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
  85                 } catch (final NamingException e) {
  86                         // Throw again
  87                         throw new FaceletException(e);
  88                 }
  89         }
  90
  91         @PostConstruct
  92         public void init () {
  93                 // Init list
  94                 this.addressbookList = new ArrayList<>(0);
  95
  96                 // Is the user logged-in?
  97                 if (this.loginController.isUserLoggedIn()) {
  98                         // Fill list with entries
  99                         this.addressbookList = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
 100                 }
 101         }
 102
 103         @Override
 104         public boolean hasCreatedAddressbooks () {
 105                 // Is the user logged in?
 106                 if (!this.loginController.isUserLoggedIn()) {
 107                         // Not logged in
 108                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 109                 }
 110
 111                 // Check if the list is filled
 112                 return (!this.addressbookList.isEmpty());
 113         }
 114
 115         @Override
 116         public void addAddressbook () {
 117                 // Is this name already used?
 118                 if (!this.loginController.isUserLoggedIn()) {
 119                         // Not logged in
 120                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 121                 } else if (this.getAddressbookName() == null) {
 122                         // Address book name is null
 123                         throw new NullPointerException("addressbookName is null");
 124                 } else if (this.getAddressbookName().isEmpty()) {
 125                         // Address book name is empty
 126                         throw new IllegalStateException("addressbookName is empty.");
 127                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 128                         // Already used by this user
 129                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 130                 }
 131
 132                 // Create address book instance with name
 133                 Addressbook addressbook = new UserAddressbook(this.getAddressbookName());
 134
 135                 // Set default status to UNLOCKED and owner
 136                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 137                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 138                 addressbook.setAddressbookCreated(new GregorianCalendar());
 139
 140                 try {
 141                         // Register this address book
 142                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 143
 144                         // Remove name
 145                         this.setAddressbookName(null);
 146
 147                         // Add address book entry to list
 148                         this.addressbookList.add(updatedAddressbook);
 149                 } catch (final AddressbookNameAlreadyUsedException ex) {
 150                         // Throw again as cause
 151                         throw new FaceletException(ex);
 152                 }
 153         }
 154
 155         @Override
 156         public String getAddressbookName () {
 157                 return this.addressbookName;
 158         }
 159
 160         @Override
 161         public void setAddressbookName (final String addressbookName) {
 162                 this.addressbookName = addressbookName;
 163         }
 164
 165         @Override
 166         public boolean isAddressbookNameUsed (final String addressbookName) {
 167                 // Is it zero size?
 168                 if (null == addressbookName) {
 169                         // Is null
 170                         throw new NullPointerException("addressbookName is null"); //NOI18N
 171                 } else if (this.addressbookList.isEmpty()) {
 172                         // Not found!
 173                         return false;
 174                 }
 175
 176                 // Default is not found
 177                 boolean isFound = false;
 178
 179                 // Check all entries
 180                 for (final Addressbook addressbook : this.addressbookList) {
 181                         // Is the name same?
 182                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 183                                 // Found a match
 184                                 isFound = true;
 185                                 break;
 186                         }
 187                 }
 188
 189                 // Return status
 190                 return isFound;
 191         }
 192 }