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 java.util.Objects;
  26 import java.util.concurrent.ConcurrentHashMap;
  27 import java.util.concurrent.ConcurrentMap;
  28 import javax.annotation.PostConstruct;
  29 import javax.enterprise.context.SessionScoped;
  30 import javax.enterprise.event.Observes;
  31 import javax.faces.view.facelets.FaceletException;
  32 import javax.inject.Inject;
  33 import javax.inject.Named;
  34 import javax.naming.Context;
  35 import javax.naming.InitialContext;
  36 import javax.naming.NamingException;
  37 import org.mxchange.addressbook.beans.login.UserLoginWebController;
  38 import org.mxchange.addressbook.events.addressbook.AddressbookLoadedEvent;
  39 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  40 import org.mxchange.addressbook.model.addressbook.Addressbook;
  41 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  42 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  43 import org.mxchange.addressbook.model.addressbook.entry.AddressbookEntry;
  44 import org.mxchange.addressbook.model.addressbook.shared.ShareableAddressbook;
  45 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  46 import org.mxchange.jusercore.events.login.UserLoggedInEvent;
  47 import org.mxchange.jusercore.model.user.User;
  48
  49 /**
  50  * An address book bean (controller)
  51  * <p>
  52  * @author Roland Haeder<roland@mxchange.org>
  53  */
  54 @Named ("addressbookController")
  55 @SessionScoped
  56 public class AddressbookWebBean implements AddressbookWebController {
  57
  58         /**
  59          * Map for count of user's shared addresses
  60          */
  61         private static ConcurrentMap<User, Integer> countSharesList;
  62
  63         /**
  64          * Serial number
  65          */
  66         private static final long serialVersionUID = 185_781_756_712_969L;
  67
  68         /**
  69          * Remote address book bean
  70          */
  71         private AddressbookSessionBeanRemote addressbookBean;
  72
  73         /**
  74          * When this address book has been created
  75          */
  76         private Calendar addressbookCreated;
  77
  78         /**
  79          * Address book id number (from URL for example)
  80          */
  81         private Long addressbookId;
  82
  83         /**
  84          * Name of the address book
  85          */
  86         private String addressbookName;
  87
  88         /**
  89          * Who owns this address book
  90          */
  91         private User addressbookUser;
  92
  93         /**
  94          * Login controller
  95          */
  96         @Inject
  97         private UserLoginWebController loginController;
  98
  99         /**
 100          * A list of all user's shared (with others) address books
 101          */
 102         private List<ShareableAddressbook> sharedAddressbooks;
 103
 104         /**
 105          * A list of all user's address books
 106          */
 107         private List<Addressbook> usersAddressbooks;
 108
 109         /**
 110          * Default constructor
 111          */
 112         public AddressbookWebBean () {
 113                 // Try it
 114                 try {
 115                         // Get initial context
 116                         Context context = new InitialContext();
 117
 118                         // Try to lookup
 119                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
 120                 } catch (final NamingException e) {
 121                         // Throw again
 122                         throw new FaceletException(e);
 123                 }
 124
 125                 // Init list
 126                 AddressbookWebBean.countSharesList = new ConcurrentHashMap<>(0);
 127         }
 128
 129         @Override
 130         public String addAddressbook () {
 131                 // Is this name already used?
 132                 if (!this.loginController.isUserLoggedIn()) {
 133                         // Not logged in
 134                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 135                 } else if (this.getAddressbookName() == null) {
 136                         // Address book name is null
 137                         throw new NullPointerException("addressbookName is null"); //NOI18N
 138                 } else if (this.getAddressbookName().isEmpty()) {
 139                         // Address book name is empty
 140                         throw new IllegalStateException("addressbookName is empty."); //NOI18N
 141                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 142                         // Already used by this user
 143                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 144                 }
 145
 146                 // Create address book instance with name
 147                 Addressbook addressbook = new UserAddressbook(this.getAddressbookName());
 148
 149                 // Set default status to UNLOCKED and owner
 150                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 151                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 152                 addressbook.setAddressbookCreated(new GregorianCalendar());
 153
 154                 try {
 155                         // Register this address book
 156                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 157
 158                         // Remove name
 159                         this.setAddressbookName(null);
 160
 161                         // Add address book entry to list
 162                         this.usersAddressbooks.add(updatedAddressbook);
 163
 164                         // All fine
 165                         return "login_own_addressbooks"; //NOI18N
 166                 } catch (final AddressbookNameAlreadyUsedException ex) {
 167                         // Throw again as cause
 168                         throw new FaceletException(ex);
 169                 }
 170         }
 171
 172         @Override
 173         public void afterAddressbookLoadedEvent (final @Observes AddressbookLoadedEvent event) {
 174                 // event should not be null
 175                 if (null == event) {
 176                         // Throw NPE
 177                         throw new NullPointerException("event is null");
 178                 } else if (event.getAddressbook() == null) {
 179                         // Throw NPE again
 180                         throw new NullPointerException("event.addressbook is null");
 181                 } else if (event.getAddressbook().getAddressbookId() == null) {
 182                         // And again a NPE
 183                         throw new NullPointerException("event.addressbook.addressbookId is null");
 184                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 185                         // Invalid id number
 186                         throw new IllegalArgumentException("Address book instance " + event.getAddressbook() + " has invalid id number: " + event.getAddressbook().getAddressbookId());
 187                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 188                         // One more NPE ...
 189                         throw new NullPointerException("event.addressbook.addressbookUser is null");
 190                 }
 191
 192                 // Get address book instance
 193                 Addressbook addressbook = event.getAddressbook();
 194
 195                 // Set address book data
 196                 this.setAddressbookId(addressbook.getAddressbookId());
 197                 this.setAddressbookName(addressbook.getAddressbookName());
 198                 this.setAddressbookUser(addressbook.getAddressbookUser());
 199                 this.setAddressbookCreated(addressbook.getAddressbookCreated());
 200         }
 201
 202         @Override
 203         public void afterLoginEvent (final @Observes UserLoggedInEvent event) {
 204                 // Is the user logged in?
 205                 if (null == event) {
 206                         // Is null
 207                         throw new NullPointerException("event is null");
 208                 } else if (event.getUser() == null) {
 209                         // user is null
 210                         throw new NullPointerException("event.user is null");
 211                 } else if (!event.getUser().equals(this.loginController.getLoggedInUser())) {
 212                         // Not matching
 213                         throw new IllegalStateException("event.user and loginController.loggedInUser don't match.");
 214                 } else if (!this.loginController.isUserLoggedIn()) {
 215                         // Not logged in
 216                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 217                 }
 218
 219                 // Init user's address book list
 220                 this.initAddressbookList();
 221         }
 222
 223         @Override
 224         public List<Addressbook> allAddressbooks () {
 225                 // Is the user logged in?
 226                 if (!this.loginController.isUserLoggedIn()) {
 227                         // Not logged in
 228                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 229                 }
 230
 231                 return Collections.unmodifiableList(this.usersAddressbooks);
 232         }
 233
 234         @Override
 235         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 236                 // Is the user logged in?
 237                 if (!this.loginController.isUserLoggedIn()) {
 238                         // Not logged in
 239                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 240                 }
 241
 242                 // Ask the bean
 243                 return this.addressbookBean.allEntries(addressbook);
 244         }
 245
 246         @Override
 247         public int allEntriesSize (final Addressbook addressbook) {
 248                 // Ask the bean
 249                 return this.allEntries(addressbook).size();
 250         }
 251
 252         @Override
 253         public List<ShareableAddressbook> allShares () {
 254                 // Is the user logged in?
 255                 if (!this.loginController.isUserLoggedIn()) {
 256                         // Not logged in
 257                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 258                 }
 259
 260                 return Collections.unmodifiableList(this.sharedAddressbooks);
 261         }
 262
 263         @Override
 264         public Integer countAllUserSharedAddressbooks (final User user) {
 265                 // Is there cache?
 266                 if (AddressbookWebBean.countSharesList.containsKey(user)) {
 267                         // Return it instead
 268                         return AddressbookWebBean.countSharesList.get(user);
 269                 }
 270
 271                 // Call EJB ("expensive")
 272                 Integer count = this.addressbookBean.countAllUserSharedAddressbooks(user);
 273
 274                 // Add to list
 275                 AddressbookWebBean.countSharesList.put(user, count);
 276
 277                 // Return it
 278                 return count;
 279         }
 280
 281         @Override
 282         public Calendar getAddressbookCreated () {
 283                 return this.addressbookCreated;
 284         }
 285
 286         @Override
 287         public void setAddressbookCreated (final Calendar addressbookCreated) {
 288                 this.addressbookCreated = addressbookCreated;
 289         }
 290
 291         @Override
 292         public Long getAddressbookId () {
 293                 return this.addressbookId;
 294         }
 295
 296         @Override
 297         public void setAddressbookId (final Long addressbookId) {
 298                 this.addressbookId = addressbookId;
 299         }
 300
 301         @Override
 302         public String getAddressbookName () {
 303                 return this.addressbookName;
 304         }
 305
 306         @Override
 307         public void setAddressbookName (final String addressbookName) {
 308                 this.addressbookName = addressbookName;
 309         }
 310
 311         @Override
 312         public User getAddressbookUser () {
 313                 return this.addressbookUser;
 314         }
 315
 316         @Override
 317         public void setAddressbookUser (final User addressbookUser) {
 318                 this.addressbookUser = addressbookUser;
 319         }
 320
 321         @Override
 322         public boolean hasCreatedAddressbooks () {
 323                 // Is the user logged in?
 324                 if (!this.loginController.isUserLoggedIn()) {
 325                         // Not logged in
 326                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 327                 }
 328
 329                 // Check if the list is filled
 330                 return (!this.usersAddressbooks.isEmpty());
 331         }
 332
 333         @PostConstruct
 334         public void init () {
 335                 // Init list
 336                 this.usersAddressbooks = new ArrayList<>(0);
 337
 338                 // Is the user logged-in?
 339                 if (this.loginController.isUserLoggedIn()) {
 340                         // Initialize list
 341                         this.initAddressbookList();
 342                 }
 343
 344                 // TODO Initialize list from bean with just one call
 345                 //this.addressbookBean.getUserCountMap()
 346         }
 347
 348         @Override
 349         public boolean isAddressbookNameUsed (final String addressbookName) {
 350                 // Is it zero size?
 351                 if (null == addressbookName) {
 352                         // Is null
 353                         throw new NullPointerException("addressbookName is null"); //NOI18N
 354                 } else if (this.usersAddressbooks.isEmpty()) {
 355                         // Not found!
 356                         return false;
 357                 }
 358
 359                 // Default is not found
 360                 boolean isFound = false;
 361
 362                 // Check all entries
 363                 for (final Addressbook addressbook : this.usersAddressbooks) {
 364                         // Is the name same?
 365                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 366                                 // Found a match
 367                                 isFound = true;
 368                                 break;
 369                         }
 370                 }
 371
 372                 // Return status
 373                 return isFound;
 374         }
 375
 376         @Override
 377         public boolean isOtherAddressbook () {
 378                 // Just call the other method and invert it
 379                 return (!this.isOwnAddressbook());
 380         }
 381
 382         @Override
 383         public boolean isOwnAddressbook () {
 384                 // Is the user logged in?
 385                 if (!this.loginController.isUserLoggedIn()) {
 386                         // No, then no own address book
 387                         return false;
 388                 }
 389
 390                 // Is same user?
 391                 return Objects.equals(this.getAddressbookUser(), this.loginController.getLoggedInUser());
 392         }
 393
 394         /**
 395          * Initializes the user user's address book list
 396          */
 397         private void initAddressbookList () {
 398                 // Fill list with entries
 399                 this.usersAddressbooks = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
 400         }
 401 }