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.Collections;
  22 import java.util.GregorianCalendar;
  23 import java.util.List;
  24 import javax.annotation.PostConstruct;
  25 import javax.enterprise.context.SessionScoped;
  26 import javax.faces.view.facelets.FaceletException;
  27 import javax.inject.Inject;
  28 import javax.inject.Named;
  29 import javax.naming.Context;
  30 import javax.naming.InitialContext;
  31 import javax.naming.NamingException;
  32 import org.mxchange.addressbook.beans.login.UserLoginWebController;
  33 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  34 import org.mxchange.addressbook.model.addressbook.Addressbook;
  35 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  36 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  37 import org.mxchange.addressbook.model.addressbook.entry.AddressbookEntry;
  38 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  39
  40 /**
  41  * A user bean (controller)
  42  * <p>
  43  * @author Roland Haeder<roland@mxchange.org>
  44  */
  45 @Named ("addressbookController")
  46 @SessionScoped
  47 public class AddressbookWebBean implements AddressbookWebController {
  48
  49         /**
  50          * Serial number
  51          */
  52         private static final long serialVersionUID = 185_781_756_712_969L;
  53
  54         /**
  55          * Remote address book bean
  56          */
  57         private AddressbookSessionBeanRemote addressbookBean;
  58
  59         /////////////////////// Properties /////////////////////
  60         /**
  61          * A list of all user's address books
  62          */
  63         private List<Addressbook> addressbookList;
  64
  65         /**
  66          * Name of the address book
  67          */
  68         private String addressbookName;
  69
  70         /**
  71          * Login controller
  72          */
  73         @Inject
  74         private UserLoginWebController loginController;
  75
  76         /**
  77          * Default constructor
  78          */
  79         public AddressbookWebBean () {
  80                 // Try it
  81                 try {
  82                         // Get initial context
  83                         Context context = new InitialContext();
  84
  85                         // Try to lookup
  86                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
  87                 } catch (final NamingException e) {
  88                         // Throw again
  89                         throw new FaceletException(e);
  90                 }
  91         }
  92
  93         @Override
  94         public void addAddressbook () {
  95                 // Is this name already used?
  96                 if (!this.loginController.isUserLoggedIn()) {
  97                         // Not logged in
  98                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
  99                 } else if (this.getAddressbookName() == null) {
 100                         // Address book name is null
 101                         throw new NullPointerException("addressbookName is null");
 102                 } else if (this.getAddressbookName().isEmpty()) {
 103                         // Address book name is empty
 104                         throw new IllegalStateException("addressbookName is empty.");
 105                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 106                         // Already used by this user
 107                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 108                 }
 109
 110                 // Create address book instance with name
 111                 Addressbook addressbook = new UserAddressbook(this.getAddressbookName());
 112
 113                 // Set default status to UNLOCKED and owner
 114                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 115                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 116                 addressbook.setAddressbookCreated(new GregorianCalendar());
 117
 118                 try {
 119                         // Register this address book
 120                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 121
 122                         // Remove name
 123                         this.setAddressbookName(null);
 124
 125                         // Add address book entry to list
 126                         this.addressbookList.add(updatedAddressbook);
 127                 } catch (final AddressbookNameAlreadyUsedException ex) {
 128                         // Throw again as cause
 129                         throw new FaceletException(ex);
 130                 }
 131         }
 132
 133         @Override
 134         public List<Addressbook> allAddressbooks () {
 135                 // Is the user logged in?
 136                 if (!this.loginController.isUserLoggedIn()) {
 137                         // Not logged in
 138                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 139                 }
 140
 141                 return Collections.unmodifiableList(this.addressbookList);
 142         }
 143
 144         @Override
 145         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 146                 // Is the user logged in?
 147                 if (!this.loginController.isUserLoggedIn()) {
 148                         // Not logged in
 149                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 150                 }
 151
 152                 // Ask the bean
 153                 return this.addressbookBean.allEntries(addressbook);
 154         }
 155
 156         @Override
 157         public int allEntriesSize (final Addressbook addressbook) {
 158                 // Ask the bean
 159                 return this.allEntries(addressbook).size();
 160         }
 161
 162         @Override
 163         public String getAddressbookName () {
 164                 return this.addressbookName;
 165         }
 166
 167         @Override
 168         public void setAddressbookName (final String addressbookName) {
 169                 this.addressbookName = addressbookName;
 170         }
 171
 172         @Override
 173         public boolean hasCreatedAddressbooks () {
 174                 // Is the user logged in?
 175                 if (!this.loginController.isUserLoggedIn()) {
 176                         // Not logged in
 177                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 178                 }
 179
 180                 // Check if the list is filled
 181                 return (!this.addressbookList.isEmpty());
 182         }
 183
 184         @PostConstruct
 185         public void init () {
 186                 // Init list
 187                 this.addressbookList = new ArrayList<>(0);
 188
 189                 // Is the user logged-in?
 190                 if (this.loginController.isUserLoggedIn()) {
 191                         // Fill list with entries
 192                         this.addressbookList = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
 193                 }
 194         }
 195
 196         @Override
 197         public boolean isAddressbookNameUsed (final String addressbookName) {
 198                 // Is it zero size?
 199                 if (null == addressbookName) {
 200                         // Is null
 201                         throw new NullPointerException("addressbookName is null"); //NOI18N
 202                 } else if (this.addressbookList.isEmpty()) {
 203                         // Not found!
 204                         return false;
 205                 }
 206
 207                 // Default is not found
 208                 boolean isFound = false;
 209
 210                 // Check all entries
 211                 for (final Addressbook addressbook : this.addressbookList) {
 212                         // Is the name same?
 213                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 214                                 // Found a match
 215                                 isFound = true;
 216                                 break;
 217                         }
 218                 }
 219
 220                 // Return status
 221                 return isFound;
 222         }
 223 }