src/java/org/mxchange/jjobs/beans/addressbook/JobsAddressbookWebSessionBean.java

   1 /*
   2  * Copyright (C) 2016 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Affero General Public License as
   6  * published by the Free Software Foundation, either version 3 of the
   7  * License, or (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 Affero General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Affero General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.jjobs.beans.addressbook;
  18
  19 import java.text.MessageFormat;
  20 import java.util.Calendar;
  21 import java.util.Collections;
  22 import java.util.LinkedList;
  23 import java.util.List;
  24 import java.util.Objects;
  25 import javax.annotation.PostConstruct;
  26 import javax.enterprise.context.SessionScoped;
  27 import javax.enterprise.event.Event;
  28 import javax.enterprise.event.Observes;
  29 import javax.enterprise.inject.Any;
  30 import javax.faces.view.facelets.FaceletException;
  31 import javax.inject.Inject;
  32 import javax.inject.Named;
  33 import javax.naming.Context;
  34 import javax.naming.InitialContext;
  35 import javax.naming.NamingException;
  36 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  37 import org.mxchange.jaddressbookcore.events.addressbook.AddressbookLoadedEvent;
  38 import org.mxchange.jaddressbookcore.events.addressbook.LoadedAddressbookEvent;
  39 import org.mxchange.jaddressbookcore.exceptions.AddressbookNameAlreadyUsedException;
  40 import org.mxchange.jaddressbookcore.exceptions.AddressbookNotFoundException;
  41 import org.mxchange.jaddressbookcore.model.addressbook.Addressbook;
  42 import org.mxchange.jaddressbookcore.model.addressbook.UserAddressbook;
  43 import org.mxchange.jaddressbookcore.model.addressbook.entry.AddressbookEntry;
  44 import org.mxchange.jjobs.beans.login.JobsUserLoginWebSessionController;
  45 import org.mxchange.jusercore.events.login.UserLoggedInEvent;
  46 import org.mxchange.jusercore.model.user.User;
  47
  48 /**
  49  * An address book bean (controller)
  50  * <p>
  51  * @author Roland Haeder<roland@mxchange.org>
  52  */
  53 @Named ("addressbookController")
  54 @SessionScoped
  55 public class JobsAddressbookWebSessionBean implements JobsAddressbookWebSessionController {
  56
  57         /**
  58          * Serial number
  59          */
  60         private static final long serialVersionUID = 185_781_756_712_969L;
  61
  62         /**
  63          * Address book instance
  64          */
  65         private Addressbook addressbook;
  66
  67         /**
  68          * Remote address book bean
  69          */
  70         private AddressbookSessionBeanRemote addressbookBean;
  71
  72         /**
  73          * When this address book has been created
  74          */
  75         private Calendar addressbookCreated;
  76
  77         /**
  78          * Address book id number (from URL for example)
  79          */
  80         private Long addressbookId;
  81
  82         /**
  83          * Name of the address book
  84          */
  85         private String addressbookName;
  86
  87         /**
  88          * Who owns this address book
  89          */
  90         private User addressbookUser;
  91
  92         /**
  93          * Event fired when user has logged in
  94          */
  95         @Inject
  96         @Any
  97         private Event<AddressbookLoadedEvent> loadedEvent;
  98
  99         /**
 100          * Login controller
 101          */
 102         @Inject
 103         private JobsUserLoginWebSessionController loginController;
 104
 105         /**
 106          * A list of all user's address books
 107          */
 108         private List<Addressbook> usersAddressbooks;
 109
 110         /**
 111          * Default constructor
 112          */
 113         public JobsAddressbookWebSessionBean () {
 114                 // Try it
 115                 try {
 116                         // Get initial context
 117                         Context context = new InitialContext();
 118
 119                         // Try to lookup
 120                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("java:global/jjobs-ejb/jjobs-adr!org.mxchange.jjobs.model.addressbook.JobsAddressbookSessionBeanRemote"); //NOI18N
 121                 } catch (final NamingException e) {
 122                         // Throw again
 123                         throw new FaceletException(e);
 124                 }
 125         }
 126
 127         @Override
 128         public String addAddressbook () {
 129                 // Is this name already used?
 130                 if (!this.loginController.isUserLoggedIn()) {
 131                         // Not logged in
 132                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 133                 } else if (this.getAddressbookName() == null) {
 134                         // Address book name is null
 135                         throw new NullPointerException("addressbookName is null"); //NOI18N
 136                 } else if (this.getAddressbookName().isEmpty()) {
 137                         // Address book name is empty
 138                         throw new IllegalStateException("addressbookName is empty."); //NOI18N
 139                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 140                         // Already used by this user
 141                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 142                 }
 143
 144                 // Create address book instance with name
 145                 Addressbook book = new UserAddressbook(this.getAddressbookName(), this.loginController.getLoggedInUser());
 146
 147                 try {
 148                         // Register this address book
 149                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(book);
 150
 151                         // Remove name
 152                         this.setAddressbookName(null);
 153
 154                         // Add address book entry to list
 155                         this.usersAddressbooks.add(updatedAddressbook);
 156
 157                         // All fine
 158                         return "login_own_addressbooks"; //NOI18N
 159                 } catch (final AddressbookNameAlreadyUsedException ex) {
 160                         // Throw again as cause
 161                         throw new FaceletException(ex);
 162                 }
 163         }
 164
 165         @Override
 166         public void afterAddressbookLoadedEvent (final @Observes AddressbookLoadedEvent event) {
 167                 // event should not be null
 168                 if (null == event) {
 169                         // Throw NPE
 170                         throw new NullPointerException("event is null"); //NOI18N
 171                 } else if (event.getAddressbook() == null) {
 172                         // Throw NPE again
 173                         throw new NullPointerException("event.addressbook is null"); //NOI18N
 174                 } else if (event.getAddressbook().getAddressbookId() == null) {
 175                         // And again a NPE
 176                         throw new NullPointerException("event.addressbook.addressbookId is null"); //NOI18N
 177                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 178                         // Invalid id number
 179                         throw new IllegalArgumentException(MessageFormat.format("Address book instance {0} has invalid id number: {1}", event.getAddressbook(), event.getAddressbook().getAddressbookId())); //NOI18N
 180                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 181                         // One more NPE ...
 182                         throw new NullPointerException("event.addressbook.addressbookUser is null"); //NOI18N
 183                 }
 184
 185                 // Get address book instance
 186                 Addressbook book = event.getAddressbook();
 187
 188                 // Set address book data
 189                 this.setAddressbookId(book.getAddressbookId());
 190                 this.setAddressbookName(book.getAddressbookName());
 191                 this.setAddressbookUser(book.getAddressbookUser());
 192                 this.setAddressbookCreated(book.getAddressbookCreated());
 193
 194                 // And instance ...
 195                 this.setAddressbook(book);
 196         }
 197
 198         @Override
 199         public void afterLoginEvent (final @Observes UserLoggedInEvent event) {
 200                 // Is the user logged in?
 201                 if (null == event) {
 202                         // Is null
 203                         throw new NullPointerException("event is null"); //NOI18N
 204                 } else if (event.getLoggedInUser()== null) {
 205                         // user is null
 206                         throw new NullPointerException("event.user is null"); //NOI18N
 207                 } else if (!event.getLoggedInUser().equals(this.loginController.getLoggedInUser())) {
 208                         // Not matching
 209                         throw new IllegalStateException("event.user and loginController.loggedInUser don't match."); //NOI18N
 210                 } else if (!this.loginController.isUserLoggedIn()) {
 211                         // Not logged in
 212                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 213                 }
 214
 215                 // Init user's address book list
 216                 this.initAddressbookList();
 217         }
 218
 219         @Override
 220         public List<Addressbook> allAddressbooks () {
 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.usersAddressbooks);
 228         }
 229
 230         @Override
 231         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 232                 // Is the user logged in?
 233                 if (!this.loginController.isUserLoggedIn()) {
 234                         // Not logged in
 235                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 236                 }
 237
 238                 // Ask the bean
 239                 return this.addressbookBean.allEntries(addressbook);
 240         }
 241
 242         @Override
 243         public int allEntriesSize (final Addressbook addressbook) {
 244                 // Ask the bean
 245                 return this.allEntries(addressbook).size();
 246         }
 247
 248         @Override
 249         public Addressbook getAddressbook () {
 250                 return this.addressbook;
 251         }
 252
 253         @Override
 254         public void setAddressbook (final Addressbook addressbook) {
 255                 this.addressbook = addressbook;
 256         }
 257
 258         @Override
 259         public Calendar getAddressbookCreated () {
 260                 return this.addressbookCreated;
 261         }
 262
 263         @Override
 264         public void setAddressbookCreated (final Calendar addressbookCreated) {
 265                 this.addressbookCreated = addressbookCreated;
 266         }
 267
 268         @Override
 269         public Long getAddressbookId () {
 270                 return this.addressbookId;
 271         }
 272
 273         @Override
 274         public void setAddressbookId (final Long addressbookId) {
 275                 this.addressbookId = addressbookId;
 276         }
 277
 278         @Override
 279         public String getAddressbookName () {
 280                 return this.addressbookName;
 281         }
 282
 283         @Override
 284         public void setAddressbookName (final String addressbookName) {
 285                 this.addressbookName = addressbookName;
 286         }
 287
 288         @Override
 289         public User getAddressbookUser () {
 290                 return this.addressbookUser;
 291         }
 292
 293         @Override
 294         public void setAddressbookUser (final User addressbookUser) {
 295                 this.addressbookUser = addressbookUser;
 296         }
 297
 298         @Override
 299         public boolean hasCreatedAddressbooks () {
 300                 // Is the user logged in?
 301                 if (!this.loginController.isUserLoggedIn()) {
 302                         // Not logged in
 303                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 304                 }
 305
 306                 // Check if the list is filled
 307                 return (!this.usersAddressbooks.isEmpty());
 308         }
 309
 310         /**
 311          * Post-initialization of this class
 312          */
 313         @PostConstruct
 314         public void init () {
 315                 // Init list
 316                 this.usersAddressbooks = new LinkedList<>();
 317
 318                 // Is the user logged-in?
 319                 if (this.loginController.isUserLoggedIn()) {
 320                         // Initialize list
 321                         this.initAddressbookList();
 322                 }
 323
 324                 // TODO Initialize list from bean with just one call
 325                 //this.addressbookBean.getUserCountMap()
 326         }
 327
 328         @Override
 329         public boolean isAddressbookLoaded () {
 330                 return ((this.getAddressbookId() instanceof Long) &&
 331                                 (this.getAddressbookName() instanceof String) &&
 332                                 (!this.getAddressbookName().isEmpty()) &&
 333                                 (this.getAddressbookUser() instanceof User));
 334         }
 335
 336         @Override
 337         public boolean isAddressbookNameUsed (final String addressbookName) {
 338                 // Is it zero size?
 339                 if (null == addressbookName) {
 340                         // Is null
 341                         throw new NullPointerException("addressbookName is null"); //NOI18N
 342                 } else if (this.usersAddressbooks.isEmpty()) {
 343                         // Not found!
 344                         return false;
 345                 }
 346
 347                 // Default is not found
 348                 boolean isFound = false;
 349
 350                 // Check all entries
 351                 for (final Addressbook book : this.usersAddressbooks) {
 352                         // Is the name same?
 353                         if (book.getAddressbookName().equals(addressbookName)) {
 354                                 // Found a match
 355                                 isFound = true;
 356                                 break;
 357                         }
 358                 }
 359
 360                 // Return status
 361                 return isFound;
 362         }
 363
 364         @Override
 365         public boolean isOtherAddressbook () {
 366                 // Just call the other method and invert it
 367                 return (!this.isOwnAddressbook());
 368         }
 369
 370         @Override
 371         public boolean isOwnAddressbook () {
 372                 // Is the user logged in?
 373                 if (!this.loginController.isUserLoggedIn()) {
 374                         // No, then no own address book
 375                         throw new IllegalStateException("isOwnAddressbook() has been invoked for a guest account"); //NOI18N
 376                 }
 377
 378                 // Is same user?
 379                 return Objects.equals(this.getAddressbookUser(), this.loginController.getLoggedInUser());
 380         }
 381
 382         @Override
 383         public boolean loadAddressbook () {
 384                 // Check if the id is set
 385                 if (this.getAddressbookId() == null) {
 386                         // Throw NPE
 387                         throw new NullPointerException("this.addressbookId is null");
 388                 } else if (this.getAddressbookId() < 1) {
 389                         // Not valid id
 390                         throw new IllegalStateException(MessageFormat.format("this.addressbook={0} is invalid", this.getAddressbookId()));
 391                 }
 392
 393                 // Default is not found
 394                 boolean isFound = false;
 395
 396                 try {
 397                         // Then try to look it up
 398                         Addressbook a = this.addressbookBean.getAddressbookById(this.getAddressbookId());
 399
 400                         // Fire event here
 401                         this.loadedEvent.fire(new LoadedAddressbookEvent(a));
 402
 403                         // Found it
 404                         isFound = true;
 405                 } catch (final AddressbookNotFoundException ex) {
 406                         // Not found!
 407                         throw new FaceletException(ex);
 408                 }
 409
 410                 // Return status
 411                 return isFound;
 412         }
 413
 414         /**
 415          * Initializes the user user's address book list
 416          */
 417         private void initAddressbookList () {
 418                 // Get user instance
 419                 User user = this.loginController.getLoggedInUser();
 420
 421                 // Fill list with entries
 422                 this.usersAddressbooks = this.addressbookBean.getUsersAddressbookList(user);
 423         }
 424 }