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