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.Calendar;
  22 import java.util.Collections;
  23 import java.util.GregorianCalendar;
  24 import java.util.List;
  25 import javax.annotation.PostConstruct;
  26 import javax.enterprise.context.SessionScoped;
  27 import javax.enterprise.event.Observes;
  28 import javax.faces.view.facelets.FaceletException;
  29 import javax.inject.Inject;
  30 import javax.inject.Named;
  31 import javax.naming.Context;
  32 import javax.naming.InitialContext;
  33 import javax.naming.NamingException;
  34 import org.mxchange.addressbook.beans.login.UserLoginWebController;
  35 import org.mxchange.addressbook.events.AddressbookLoadedEvent;
  36 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  37 import org.mxchange.addressbook.model.addressbook.Addressbook;
  38 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  39 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  40 import org.mxchange.addressbook.model.addressbook.entry.AddressbookEntry;
  41 import org.mxchange.addressbook.model.addressbook.shared.ShareableAddressbook;
  42 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  43 import org.mxchange.jusercore.model.user.User;
  44
  45 /**
  46  * An address book bean (controller)
  47  * <p>
  48  * @author Roland Haeder<roland@mxchange.org>
  49  */
  50 @Named ("addressbookController")
  51 @SessionScoped
  52 public class AddressbookWebBean implements AddressbookWebController {
  53
  54         /**
  55          * Serial number
  56          */
  57         private static final long serialVersionUID = 185_781_756_712_969L;
  58
  59         /**
  60          * Remote address book bean
  61          */
  62         private AddressbookSessionBeanRemote addressbookBean;
  63
  64         /**
  65          * When this address book has been created
  66          */
  67         private Calendar addressbookCreated;
  68
  69         /**
  70          * Address book id number (from URL for example)
  71          */
  72         private Long addressbookId;
  73
  74         /**
  75          * Name of the address book
  76          */
  77         private String addressbookName;
  78
  79         /**
  80          * Who owns this address book
  81          */
  82         private User addressbookUser;
  83
  84         /**
  85          * Login controller
  86          */
  87         @Inject
  88         private UserLoginWebController loginController;
  89
  90         /**
  91          * A list of all user's shared (with others) address books
  92          */
  93         private List<ShareableAddressbook> sharedAddressbooks;
  94
  95         /**
  96          * A list of all user's address books
  97          */
  98         private List<Addressbook> usersAddressbooks;
  99
 100         /**
 101          * Default constructor
 102          */
 103         public AddressbookWebBean () {
 104                 // Try it
 105                 try {
 106                         // Get initial context
 107                         Context context = new InitialContext();
 108
 109                         // Try to lookup
 110                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
 111                 } catch (final NamingException e) {
 112                         // Throw again
 113                         throw new FaceletException(e);
 114                 }
 115         }
 116
 117         @Override
 118         public String addAddressbook () {
 119                 // Is this name already used?
 120                 if (!this.loginController.isUserLoggedIn()) {
 121                         // Not logged in
 122                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 123                 } else if (this.getAddressbookName() == null) {
 124                         // Address book name is null
 125                         throw new NullPointerException("addressbookName is null"); //NOI18N
 126                 } else if (this.getAddressbookName().isEmpty()) {
 127                         // Address book name is empty
 128                         throw new IllegalStateException("addressbookName is empty."); //NOI18N
 129                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 130                         // Already used by this user
 131                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 132                 }
 133
 134                 // Create address book instance with name
 135                 Addressbook addressbook = new UserAddressbook(this.getAddressbookName());
 136
 137                 // Set default status to UNLOCKED and owner
 138                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 139                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 140                 addressbook.setAddressbookCreated(new GregorianCalendar());
 141
 142                 try {
 143                         // Register this address book
 144                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 145
 146                         // Remove name
 147                         this.setAddressbookName(null);
 148
 149                         // Add address book entry to list
 150                         this.usersAddressbooks.add(updatedAddressbook);
 151
 152                         // All fine
 153                         return "login_own_addressbooks"; //NOI18N
 154                 } catch (final AddressbookNameAlreadyUsedException ex) {
 155                         // Throw again as cause
 156                         throw new FaceletException(ex);
 157                 }
 158         }
 159
 160         @Override
 161         public void afterAddressbookLoaded (final @Observes AddressbookLoadedEvent event) {
 162                 // event should not be null
 163                 if (null == event) {
 164                         // Throw NPE
 165                         throw new NullPointerException("event is null");
 166                 } else if (event.getAddressbook() == null) {
 167                         // Throw NPE again
 168                         throw new NullPointerException("event.addressbook is null");
 169                 } else if (event.getAddressbook().getAddressbookId() == null) {
 170                         // And again a NPE
 171                         throw new NullPointerException("event.addressbook.addressbookId is null");
 172                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 173                         // Invalid id number
 174                         throw new IllegalArgumentException("Address book instance " + event.getAddressbook() + " has invalid id number: " + event.getAddressbook().getAddressbookId());
 175                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 176                         // One more NPE ...
 177                         throw new NullPointerException("event.addressbook.addressbookUser is null");
 178                 }
 179
 180                 // Get address book instance
 181                 Addressbook addressbook = event.getAddressbook();
 182
 183                 // Set address book data
 184                 this.setAddressbookId(addressbook.getAddressbookId());
 185                 this.setAddressbookName(addressbook.getAddressbookName());
 186                 this.setAddressbookUser(addressbook.getAddressbookUser());
 187                 this.setAddressbookCreated(addressbook.getAddressbookCreated());
 188         }
 189
 190         @Override
 191         public List<Addressbook> allAddressbooks () {
 192                 // Is the user logged in?
 193                 if (!this.loginController.isUserLoggedIn()) {
 194                         // Not logged in
 195                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 196                 }
 197
 198                 return Collections.unmodifiableList(this.usersAddressbooks);
 199         }
 200
 201         @Override
 202         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 203                 // Is the user logged in?
 204                 if (!this.loginController.isUserLoggedIn()) {
 205                         // Not logged in
 206                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 207                 }
 208
 209                 // Ask the bean
 210                 return this.addressbookBean.allEntries(addressbook);
 211         }
 212
 213         @Override
 214         public int allEntriesSize (final Addressbook addressbook) {
 215                 // Ask the bean
 216                 return this.allEntries(addressbook).size();
 217         }
 218
 219         @Override
 220         public List<ShareableAddressbook> allShares () {
 221                 // Is the user logged in?
 222                 if (!this.loginController.isUserLoggedIn()) {
 223                         // Not logged in
 224                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 225                 }
 226
 227                 return Collections.unmodifiableList(this.sharedAddressbooks);
 228         }
 229
 230         @Override
 231         public Integer countAllUserSharedAddressbooks (final User user) {
 232                 // Call EJB
 233                 return this.addressbookBean.countAllUserSharedAddressbooks(user);
 234         }
 235
 236         @Override
 237         public Calendar getAddressbookCreated () {
 238                 return this.addressbookCreated;
 239         }
 240
 241         @Override
 242         public void setAddressbookCreated (final Calendar addressbookCreated) {
 243                 this.addressbookCreated = addressbookCreated;
 244         }
 245
 246         @Override
 247         public Long getAddressbookId () {
 248                 return this.addressbookId;
 249         }
 250
 251         @Override
 252         public void setAddressbookId (final Long addressbookId) {
 253                 this.addressbookId = addressbookId;
 254         }
 255
 256         @Override
 257         public String getAddressbookName () {
 258                 return this.addressbookName;
 259         }
 260
 261         @Override
 262         public void setAddressbookName (final String addressbookName) {
 263                 this.addressbookName = addressbookName;
 264         }
 265
 266         @Override
 267         public User getAddressbookUser () {
 268                 return this.addressbookUser;
 269         }
 270
 271         @Override
 272         public void setAddressbookUser (final User addressbookUser) {
 273                 this.addressbookUser = addressbookUser;
 274         }
 275
 276         @Override
 277         public boolean hasCreatedAddressbooks () {
 278                 // Is the user logged in?
 279                 if (!this.loginController.isUserLoggedIn()) {
 280                         // Not logged in
 281                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 282                 }
 283
 284                 // Check if the list is filled
 285                 return (!this.usersAddressbooks.isEmpty());
 286         }
 287
 288         @PostConstruct
 289         public void init () {
 290                 // Init list
 291                 this.usersAddressbooks = new ArrayList<>(0);
 292
 293                 // Is the user logged-in?
 294                 if (this.loginController.isUserLoggedIn()) {
 295                         // Fill list with entries
 296                         this.usersAddressbooks = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
 297                 }
 298         }
 299
 300         @Override
 301         public boolean isAddressbookNameUsed (final String addressbookName) {
 302                 // Is it zero size?
 303                 if (null == addressbookName) {
 304                         // Is null
 305                         throw new NullPointerException("addressbookName is null"); //NOI18N
 306                 } else if (this.usersAddressbooks.isEmpty()) {
 307                         // Not found!
 308                         return false;
 309                 }
 310
 311                 // Default is not found
 312                 boolean isFound = false;
 313
 314                 // Check all entries
 315                 for (final Addressbook addressbook : this.usersAddressbooks) {
 316                         // Is the name same?
 317                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 318                                 // Found a match
 319                                 isFound = true;
 320                                 break;
 321                         }
 322                 }
 323
 324                 // Return status
 325                 return isFound;
 326         }
 327 }