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          * Address book instance
  70          */
  71         private Addressbook addressbook;
  72
  73         /**
  74          * Remote address book bean
  75          */
  76         private AddressbookSessionBeanRemote addressbookBean;
  77
  78         /**
  79          * When this address book has been created
  80          */
  81         private Calendar addressbookCreated;
  82
  83         /**
  84          * Address book id number (from URL for example)
  85          */
  86         private Long addressbookId;
  87
  88         /**
  89          * Name of the address book
  90          */
  91         private String addressbookName;
  92
  93         /**
  94          * Who owns this address book
  95          */
  96         private User addressbookUser;
  97
  98         /**
  99          * Login controller
 100          */
 101         @Inject
 102         private UserLoginWebController loginController;
 103
 104         /**
 105          * A list of all user's shared (with others) address books
 106          */
 107         private List<ShareableAddressbook> sharedAddressbooks;
 108
 109         /**
 110          * A list of all user's address books
 111          */
 112         private List<Addressbook> usersAddressbooks;
 113
 114         /**
 115          * Default constructor
 116          */
 117         public AddressbookWebBean () {
 118                 // Try it
 119                 try {
 120                         // Get initial context
 121                         Context context = new InitialContext();
 122
 123                         // Try to lookup
 124                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
 125                 } catch (final NamingException e) {
 126                         // Throw again
 127                         throw new FaceletException(e);
 128                 }
 129
 130                 // Init list
 131                 AddressbookWebBean.countSharesList = new ConcurrentHashMap<>(0);
 132         }
 133
 134         @Override
 135         public String addAddressbook () {
 136                 // Is this name already used?
 137                 if (!this.loginController.isUserLoggedIn()) {
 138                         // Not logged in
 139                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 140                 } else if (this.getAddressbookName() == null) {
 141                         // Address book name is null
 142                         throw new NullPointerException("addressbookName is null"); //NOI18N
 143                 } else if (this.getAddressbookName().isEmpty()) {
 144                         // Address book name is empty
 145                         throw new IllegalStateException("addressbookName is empty."); //NOI18N
 146                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 147                         // Already used by this user
 148                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 149                 }
 150
 151                 // Create address book instance with name
 152                 Addressbook book = new UserAddressbook(this.getAddressbookName());
 153
 154                 // Set default status to UNLOCKED and owner
 155                 book.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 156                 book.setAddressbookUser(this.loginController.getLoggedInUser());
 157                 book.setAddressbookCreated(new GregorianCalendar());
 158
 159                 try {
 160                         // Register this address book
 161                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(book);
 162
 163                         // Remove name
 164                         this.setAddressbookName(null);
 165
 166                         // Add address book entry to list
 167                         this.usersAddressbooks.add(updatedAddressbook);
 168
 169                         // All fine
 170                         return "login_own_addressbooks"; //NOI18N
 171                 } catch (final AddressbookNameAlreadyUsedException ex) {
 172                         // Throw again as cause
 173                         throw new FaceletException(ex);
 174                 }
 175         }
 176
 177         @Override
 178         public void afterAddressbookLoadedEvent (final @Observes AddressbookLoadedEvent event) {
 179                 // event should not be null
 180                 if (null == event) {
 181                         // Throw NPE
 182                         throw new NullPointerException("event is null"); //NOI18N
 183                 } else if (event.getAddressbook() == null) {
 184                         // Throw NPE again
 185                         throw new NullPointerException("event.addressbook is null"); //NOI18N
 186                 } else if (event.getAddressbook().getAddressbookId() == null) {
 187                         // And again a NPE
 188                         throw new NullPointerException("event.addressbook.addressbookId is null"); //NOI18N
 189                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 190                         // Invalid id number
 191                         throw new IllegalArgumentException(MessageFormat.format("Address book instance {0} has invalid id number: {1}", event.getAddressbook(), event.getAddressbook().getAddressbookId())); //NOI18N
 192                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 193                         // One more NPE ...
 194                         throw new NullPointerException("event.addressbook.addressbookUser is null"); //NOI18N
 195                 }
 196
 197                 // Get address book instance
 198                 Addressbook book = event.getAddressbook();
 199
 200                 // Set address book data
 201                 this.setAddressbookId(book.getAddressbookId());
 202                 this.setAddressbookName(book.getAddressbookName());
 203                 this.setAddressbookUser(book.getAddressbookUser());
 204                 this.setAddressbookCreated(book.getAddressbookCreated());
 205
 206                 // And instance ...
 207                 this.setAddressbook(book);
 208         }
 209
 210         @Override
 211         public void afterLoginEvent (final @Observes UserLoggedInEvent event) {
 212                 // Is the user logged in?
 213                 if (null == event) {
 214                         // Is null
 215                         throw new NullPointerException("event is null"); //NOI18N
 216                 } else if (event.getUser() == null) {
 217                         // user is null
 218                         throw new NullPointerException("event.user is null"); //NOI18N
 219                 } else if (!event.getUser().equals(this.loginController.getLoggedInUser())) {
 220                         // Not matching
 221                         throw new IllegalStateException("event.user and loginController.loggedInUser don't match."); //NOI18N
 222                 } else 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                 // Init user's address book list
 228                 this.initAddressbookList();
 229         }
 230
 231         @Override
 232         public List<Addressbook> allAddressbooks () {
 233                 // Is the user logged in?
 234                 if (!this.loginController.isUserLoggedIn()) {
 235                         // Not logged in
 236                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 237                 }
 238
 239                 return Collections.unmodifiableList(this.usersAddressbooks);
 240         }
 241
 242         @Override
 243         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 244                 // Is the user logged in?
 245                 if (!this.loginController.isUserLoggedIn()) {
 246                         // Not logged in
 247                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 248                 }
 249
 250                 // Ask the bean
 251                 return this.addressbookBean.allEntries(addressbook);
 252         }
 253
 254         @Override
 255         public int allEntriesSize (final Addressbook addressbook) {
 256                 // Ask the bean
 257                 return this.allEntries(addressbook).size();
 258         }
 259
 260         @Override
 261         public List<ShareableAddressbook> allShares () {
 262                 // Is the user logged in?
 263                 if (!this.loginController.isUserLoggedIn()) {
 264                         // Not logged in
 265                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 266                 }
 267
 268                 return Collections.unmodifiableList(this.sharedAddressbooks);
 269         }
 270
 271         @Override
 272         public List<User> allUsersNotSharing () {
 273                 // Is the user logged in?
 274                 if (!this.loginController.isUserLoggedIn()) {
 275                         // Not logged in
 276                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 277                 }
 278
 279                 // Call EJB
 280                 return this.addressbookBean.allUsersNotSharing(this.loginController.getLoggedInUser(), this.getAddressbook());
 281         }
 282
 283         @Override
 284         public Integer countAllUserSharedAddressbooks (final User user) {
 285                 // Is there cache?
 286                 if (AddressbookWebBean.countSharesList.containsKey(user)) {
 287                         // Return it instead
 288                         return AddressbookWebBean.countSharesList.get(user);
 289                 }
 290
 291                 // Call EJB ("expensive")
 292                 Integer count = this.addressbookBean.countAllUserSharedAddressbooks(user);
 293
 294                 // Add to list
 295                 AddressbookWebBean.countSharesList.put(user, count);
 296
 297                 // Return it
 298                 return count;
 299         }
 300
 301         @Override
 302         public Addressbook getAddressbook () {
 303                 return this.addressbook;
 304         }
 305
 306         @Override
 307         public void setAddressbook (final Addressbook addressbook) {
 308                 this.addressbook = addressbook;
 309         }
 310
 311         @Override
 312         public Calendar getAddressbookCreated () {
 313                 return this.addressbookCreated;
 314         }
 315
 316         @Override
 317         public void setAddressbookCreated (final Calendar addressbookCreated) {
 318                 this.addressbookCreated = addressbookCreated;
 319         }
 320
 321         @Override
 322         public Long getAddressbookId () {
 323                 return this.addressbookId;
 324         }
 325
 326         @Override
 327         public void setAddressbookId (final Long addressbookId) {
 328                 this.addressbookId = addressbookId;
 329         }
 330
 331         @Override
 332         public String getAddressbookName () {
 333                 return this.addressbookName;
 334         }
 335
 336         @Override
 337         public void setAddressbookName (final String addressbookName) {
 338                 this.addressbookName = addressbookName;
 339         }
 340
 341         @Override
 342         public User getAddressbookUser () {
 343                 return this.addressbookUser;
 344         }
 345
 346         @Override
 347         public void setAddressbookUser (final User addressbookUser) {
 348                 this.addressbookUser = addressbookUser;
 349         }
 350
 351         @Override
 352         public boolean hasCreatedAddressbooks () {
 353                 // Is the user logged in?
 354                 if (!this.loginController.isUserLoggedIn()) {
 355                         // Not logged in
 356                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 357                 }
 358
 359                 // Check if the list is filled
 360                 return (!this.usersAddressbooks.isEmpty());
 361         }
 362
 363         @PostConstruct
 364         public void init () {
 365                 // Init list
 366                 this.usersAddressbooks = new ArrayList<>(0);
 367
 368                 // Is the user logged-in?
 369                 if (this.loginController.isUserLoggedIn()) {
 370                         // Initialize list
 371                         this.initAddressbookList();
 372                 }
 373
 374                 // TODO Initialize list from bean with just one call
 375                 //this.addressbookBean.getUserCountMap()
 376         }
 377
 378         @Override
 379         public boolean isAddressbookNameUsed (final String addressbookName) {
 380                 // Is it zero size?
 381                 if (null == addressbookName) {
 382                         // Is null
 383                         throw new NullPointerException("addressbookName is null"); //NOI18N
 384                 } else if (this.usersAddressbooks.isEmpty()) {
 385                         // Not found!
 386                         return false;
 387                 }
 388
 389                 // Default is not found
 390                 boolean isFound = false;
 391
 392                 // Check all entries
 393                 for (final Addressbook book : this.usersAddressbooks) {
 394                         // Is the name same?
 395                         if (book.getAddressbookName().equals(addressbookName)) {
 396                                 // Found a match
 397                                 isFound = true;
 398                                 break;
 399                         }
 400                 }
 401
 402                 // Return status
 403                 return isFound;
 404         }
 405
 406         @Override
 407         public boolean isOtherAddressbook () {
 408                 // Just call the other method and invert it
 409                 return (!this.isOwnAddressbook());
 410         }
 411
 412         @Override
 413         public boolean isOwnAddressbook () {
 414                 // Is the user logged in?
 415                 if (!this.loginController.isUserLoggedIn()) {
 416                         // No, then no own address book
 417                         return false;
 418                 }
 419
 420                 // Is same user?
 421                 return Objects.equals(this.getAddressbookUser(), this.loginController.getLoggedInUser());
 422         }
 423
 424         @Override
 425         public String startSharing () {
 426                 // Check conditions
 427                 if (!this.loginController.isUserLoggedIn()) {
 428                         // No, then throw exception
 429                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 430                 } else if (this.getAddressbookUser() == null) {
 431                         // Throw NPE
 432                         throw new NullPointerException("this.addressbookUser is null"); //NOI18N
 433                 } else if (this.getAddressbookUser().getUserId() == null) {
 434                         // Throw NPE again
 435                         throw new NullPointerException("this.addressbookUser.userId is null"); //NOI18N
 436                 } else if (this.getAddressbookUser().getUserId() < 1) {
 437                         // Invalid id number
 438                         throw new IllegalStateException(MessageFormat.format("this.addressbookUser.userId={0} is invalid", this.getAddressbookUser().getUserId())); //NOI18N
 439                 } else if (Objects.equals(this.getAddressbookUser(), this.loginController.getLoggedInUser())) {
 440                         // Sharing with yourself!
 441                         throw new IllegalStateException("User tries to share with himself."); //NOI18N
 442                 } else if (this.getAddressbook() == null) {
 443                         // Throw NPE again
 444                         throw new NullPointerException("this.addressbook is null"); //NOI18N
 445                 } else if (this.getAddressbook().getAddressbookId() == null) {
 446                         // Throw NPE again
 447                         throw new NullPointerException("this.addressbook.addressbookId is null"); //NOI18N
 448                 } else if (this.getAddressbook().getAddressbookId() < 1) {
 449                         // Invalid id number
 450                         throw new IllegalArgumentException(MessageFormat.format("this.addressbook.addressbookId={0} is invalid.", this.getAddressbook().getAddressbookId())); //NOI18N
 451                 }
 452
 453                 // TODO Unfinished
 454                 return null;
 455         }
 456
 457         /**
 458          * Initializes the user user's address book list
 459          */
 460         private void initAddressbookList () {
 461                 // Get user instance
 462                 User user = this.loginController.getLoggedInUser();
 463
 464                 // Fill list with entries
 465                 this.usersAddressbooks = this.addressbookBean.getUsersAddressbookList(user);
 466         }
 467 }