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.GregorianCalendar;
  23 import java.util.LinkedList;
  24 import java.util.List;
  25 import java.util.Objects;
  26 import javax.annotation.PostConstruct;
  27 import javax.enterprise.context.SessionScoped;
  28 import javax.enterprise.event.Event;
  29 import javax.enterprise.event.Observes;
  30 import javax.enterprise.inject.Any;
  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.jjobs.beans.login.JobsUserLoginWebSessionController;
  38 import org.mxchange.jjobs.events.addressbook.AddressbookLoadedEvent;
  39 import org.mxchange.jjobs.events.addressbook.LoadedAddressbookEvent;
  40 import org.mxchange.jjobs.exceptions.AddressbookNameAlreadyUsedException;
  41 import org.mxchange.jjobs.exceptions.AddressbookNotFoundException;
  42 import org.mxchange.jjobs.model.addressbook.Addressbook;
  43 import org.mxchange.jjobs.model.addressbook.JobsAddressbookSessionBeanRemote;
  44 import org.mxchange.jjobs.model.addressbook.UserAddressbook;
  45 import org.mxchange.jjobs.model.addressbook.entry.AddressbookEntry;
  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 JobsAddressbookWebSessionBean implements JobsAddressbookWebSessionController {
  57
  58         /**
  59          * Serial number
  60          */
  61         private static final long serialVersionUID = 185_781_756_712_969L;
  62
  63         /**
  64          * Address book instance
  65          */
  66         private Addressbook addressbook;
  67
  68         /**
  69          * Remote address book bean
  70          */
  71         private JobsAddressbookSessionBeanRemote 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          * Event fired when user has logged in
  95          */
  96         @Inject
  97         @Any
  98         private Event<AddressbookLoadedEvent> loadedEvent;
  99
 100         /**
 101          * Login controller
 102          */
 103         @Inject
 104         private JobsUserLoginWebSessionController loginController;
 105
 106         /**
 107          * A list of all user's address books
 108          */
 109         private List<Addressbook> usersAddressbooks;
 110
 111         /**
 112          * Default constructor
 113          */
 114         public JobsAddressbookWebSessionBean () {
 115                 // Try it
 116                 try {
 117                         // Get initial context
 118                         Context context = new InitialContext();
 119
 120                         // Try to lookup
 121                         this.addressbookBean = (JobsAddressbookSessionBeanRemote) context.lookup("java:global/addressbook-ejb/addressbook!org.mxchange.addressbook.model.addressbook.JobsAddressbookSessionBeanRemote"); //NOI18N
 122                 } catch (final NamingException e) {
 123                         // Throw again
 124                         throw new FaceletException(e);
 125                 }
 126         }
 127
 128         @Override
 129         public String addAddressbook () {
 130                 // Is this name already used?
 131                 if (!this.loginController.isUserLoggedIn()) {
 132                         // Not logged in
 133                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 134                 } else if (this.getAddressbookName() == null) {
 135                         // Address book name is null
 136                         throw new NullPointerException("addressbookName is null"); //NOI18N
 137                 } else if (this.getAddressbookName().isEmpty()) {
 138                         // Address book name is empty
 139                         throw new IllegalStateException("addressbookName is empty."); //NOI18N
 140                 } else if (this.isAddressbookNameUsed(this.getAddressbookName())) {
 141                         // Already used by this user
 142                         throw new FaceletException(MessageFormat.format("Address book name {0} already used.", this.getAddressbookName())); //NOI18N
 143                 }
 144
 145                 // Create address book instance with name
 146                 Addressbook book = new UserAddressbook(this.getAddressbookName(), this.loginController.getLoggedInUser(), new GregorianCalendar());
 147
 148                 try {
 149                         // Register this address book
 150                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(book);
 151
 152                         // Remove name
 153                         this.setAddressbookName(null);
 154
 155                         // Add address book entry to list
 156                         this.usersAddressbooks.add(updatedAddressbook);
 157
 158                         // All fine
 159                         return "login_own_addressbooks"; //NOI18N
 160                 } catch (final AddressbookNameAlreadyUsedException ex) {
 161                         // Throw again as cause
 162                         throw new FaceletException(ex);
 163                 }
 164         }
 165
 166         @Override
 167         public void afterAddressbookLoadedEvent (final @Observes AddressbookLoadedEvent event) {
 168                 // event should not be null
 169                 if (null == event) {
 170                         // Throw NPE
 171                         throw new NullPointerException("event is null"); //NOI18N
 172                 } else if (event.getAddressbook() == null) {
 173                         // Throw NPE again
 174                         throw new NullPointerException("event.addressbook is null"); //NOI18N
 175                 } else if (event.getAddressbook().getAddressbookId() == null) {
 176                         // And again a NPE
 177                         throw new NullPointerException("event.addressbook.addressbookId is null"); //NOI18N
 178                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 179                         // Invalid id number
 180                         throw new IllegalArgumentException(MessageFormat.format("Address book instance {0} has invalid id number: {1}", event.getAddressbook(), event.getAddressbook().getAddressbookId())); //NOI18N
 181                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 182                         // One more NPE ...
 183                         throw new NullPointerException("event.addressbook.addressbookUser is null"); //NOI18N
 184                 }
 185
 186                 // Get address book instance
 187                 Addressbook book = event.getAddressbook();
 188
 189                 // Set address book data
 190                 this.setAddressbookId(book.getAddressbookId());
 191                 this.setAddressbookName(book.getAddressbookName());
 192                 this.setAddressbookUser(book.getAddressbookUser());
 193                 this.setAddressbookCreated(book.getAddressbookCreated());
 194
 195                 // And instance ...
 196                 this.setAddressbook(book);
 197         }
 198
 199         @Override
 200         public void afterLoginEvent (final @Observes UserLoggedInEvent event) {
 201                 // Is the user logged in?
 202                 if (null == event) {
 203                         // Is null
 204                         throw new NullPointerException("event is null"); //NOI18N
 205                 } else if (event.getUser() == null) {
 206                         // user is null
 207                         throw new NullPointerException("event.user is null"); //NOI18N
 208                 } else if (!event.getUser().equals(this.loginController.getLoggedInUser())) {
 209                         // Not matching
 210                         throw new IllegalStateException("event.user and loginController.loggedInUser don't match."); //NOI18N
 211                 } else if (!this.loginController.isUserLoggedIn()) {
 212                         // Not logged in
 213                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 214                 }
 215
 216                 // Init user's address book list
 217                 this.initAddressbookList();
 218         }
 219
 220         @Override
 221         public List<Addressbook> allAddressbooks () {
 222                 // Is the user logged in?
 223                 if (!this.loginController.isUserLoggedIn()) {
 224                         // Not logged in
 225                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 226                 }
 227
 228                 return Collections.unmodifiableList(this.usersAddressbooks);
 229         }
 230
 231         @Override
 232         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 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                 // Ask the bean
 240                 return this.addressbookBean.allEntries(addressbook);
 241         }
 242
 243         @Override
 244         public int allEntriesSize (final Addressbook addressbook) {
 245                 // Ask the bean
 246                 return this.allEntries(addressbook).size();
 247         }
 248
 249         @Override
 250         public Addressbook getAddressbook () {
 251                 return this.addressbook;
 252         }
 253
 254         @Override
 255         public void setAddressbook (final Addressbook addressbook) {
 256                 this.addressbook = addressbook;
 257         }
 258
 259         @Override
 260         public Calendar getAddressbookCreated () {
 261                 return this.addressbookCreated;
 262         }
 263
 264         @Override
 265         public void setAddressbookCreated (final Calendar addressbookCreated) {
 266                 this.addressbookCreated = addressbookCreated;
 267         }
 268
 269         @Override
 270         public Long getAddressbookId () {
 271                 return this.addressbookId;
 272         }
 273
 274         @Override
 275         public void setAddressbookId (final Long addressbookId) {
 276                 this.addressbookId = addressbookId;
 277         }
 278
 279         @Override
 280         public String getAddressbookName () {
 281                 return this.addressbookName;
 282         }
 283
 284         @Override
 285         public void setAddressbookName (final String addressbookName) {
 286                 this.addressbookName = addressbookName;
 287         }
 288
 289         @Override
 290         public User getAddressbookUser () {
 291                 return this.addressbookUser;
 292         }
 293
 294         @Override
 295         public void setAddressbookUser (final User addressbookUser) {
 296                 this.addressbookUser = addressbookUser;
 297         }
 298
 299         @Override
 300         public boolean hasCreatedAddressbooks () {
 301                 // Is the user logged in?
 302                 if (!this.loginController.isUserLoggedIn()) {
 303                         // Not logged in
 304                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 305                 }
 306
 307                 // Check if the list is filled
 308                 return (!this.usersAddressbooks.isEmpty());
 309         }
 310
 311         /**
 312          * Post-initialization of this class
 313          */
 314         @PostConstruct
 315         public void init () {
 316                 // Init list
 317                 this.usersAddressbooks = new LinkedList<>();
 318
 319                 // Is the user logged-in?
 320                 if (this.loginController.isUserLoggedIn()) {
 321                         // Initialize list
 322                         this.initAddressbookList();
 323                 }
 324
 325                 // TODO Initialize list from bean with just one call
 326                 //this.addressbookBean.getUserCountMap()
 327         }
 328
 329         @Override
 330         public boolean isAddressbookLoaded () {
 331                 return ((this.getAddressbookId() instanceof Long) &&
 332                                 (this.getAddressbookName() instanceof String) &&
 333                                 (!this.getAddressbookName().isEmpty()) &&
 334                                 (this.getAddressbookUser() instanceof User));
 335         }
 336
 337         @Override
 338         public boolean isAddressbookNameUsed (final String addressbookName) {
 339                 // Is it zero size?
 340                 if (null == addressbookName) {
 341                         // Is null
 342                         throw new NullPointerException("addressbookName is null"); //NOI18N
 343                 } else if (this.usersAddressbooks.isEmpty()) {
 344                         // Not found!
 345                         return false;
 346                 }
 347
 348                 // Default is not found
 349                 boolean isFound = false;
 350
 351                 // Check all entries
 352                 for (final Addressbook book : this.usersAddressbooks) {
 353                         // Is the name same?
 354                         if (book.getAddressbookName().equals(addressbookName)) {
 355                                 // Found a match
 356                                 isFound = true;
 357                                 break;
 358                         }
 359                 }
 360
 361                 // Return status
 362                 return isFound;
 363         }
 364
 365         @Override
 366         public boolean isOtherAddressbook () {
 367                 // Just call the other method and invert it
 368                 return (!this.isOwnAddressbook());
 369         }
 370
 371         @Override
 372         public boolean isOwnAddressbook () {
 373                 // Is the user logged in?
 374                 if (!this.loginController.isUserLoggedIn()) {
 375                         // No, then no own address book
 376                         throw new IllegalStateException("isOwnAddressbook() has been invoked for a guest account"); //NOI18N
 377                 }
 378
 379                 // Is same user?
 380                 return Objects.equals(this.getAddressbookUser(), this.loginController.getLoggedInUser());
 381         }
 382
 383         @Override
 384         public boolean loadAddressbook () {
 385                 // Check if the id is set
 386                 if (this.getAddressbookId() == null) {
 387                         // Throw NPE
 388                         throw new NullPointerException("this.addressbookId is null");
 389                 } else if (this.getAddressbookId() < 1) {
 390                         // Not valid id
 391                         throw new IllegalStateException(MessageFormat.format("this.addressbook={0} is invalid", this.getAddressbookId()));
 392                 }
 393
 394                 // Default is not found
 395                 boolean isFound = false;
 396
 397                 try {
 398                         // Then try to look it up
 399                         Addressbook a = this.addressbookBean.getAddressbookById(this.getAddressbookId());
 400
 401                         // Fire event here
 402                         this.loadedEvent.fire(new LoadedAddressbookEvent(a));
 403
 404                         // Found it
 405                         isFound = true;
 406                 } catch (final AddressbookNotFoundException ex) {
 407                         // Not found!
 408                         throw new FaceletException(ex);
 409                 }
 410
 411                 // Return status
 412                 return isFound;
 413         }
 414
 415         /**
 416          * Initializes the user user's address book list
 417          */
 418         private void initAddressbookList () {
 419                 // Get user instance
 420                 User user = this.loginController.getLoggedInUser();
 421
 422                 // Fill list with entries
 423                 this.usersAddressbooks = this.addressbookBean.getUsersAddressbookList(user);
 424         }
 425 }