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.concurrent.ConcurrentHashMap;
  26 import java.util.concurrent.ConcurrentMap;
  27 import javax.annotation.PostConstruct;
  28 import javax.enterprise.context.SessionScoped;
  29 import javax.enterprise.event.Observes;
  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.beans.login.UserLoginWebController;
  37 import org.mxchange.addressbook.events.AddressbookLoadedEvent;
  38 import org.mxchange.addressbook.exceptions.AddressbookNameAlreadyUsedException;
  39 import org.mxchange.addressbook.model.addressbook.Addressbook;
  40 import org.mxchange.addressbook.model.addressbook.AddressbookSessionBeanRemote;
  41 import org.mxchange.addressbook.model.addressbook.UserAddressbook;
  42 import org.mxchange.addressbook.model.addressbook.entry.AddressbookEntry;
  43 import org.mxchange.addressbook.model.addressbook.shared.ShareableAddressbook;
  44 import org.mxchange.addressbook.model.addressbook.status.AddressbokStatus;
  45 import org.mxchange.jusercore.model.user.User;
  46
  47 /**
  48  * An address book bean (controller)
  49  * <p>
  50  * @author Roland Haeder<roland@mxchange.org>
  51  */
  52 @Named ("addressbookController")
  53 @SessionScoped
  54 public class AddressbookWebBean implements AddressbookWebController {
  55
  56         /**
  57          * Serial number
  58          */
  59         private static final long serialVersionUID = 185_781_756_712_969L;
  60
  61         /**
  62          * Remote address book bean
  63          */
  64         private AddressbookSessionBeanRemote addressbookBean;
  65
  66         /**
  67          * When this address book has been created
  68          */
  69         private Calendar addressbookCreated;
  70
  71         /**
  72          * Address book id number (from URL for example)
  73          */
  74         private Long addressbookId;
  75
  76         /**
  77          * Name of the address book
  78          */
  79         private String addressbookName;
  80
  81         /**
  82          * Who owns this address book
  83          */
  84         private User addressbookUser;
  85
  86         /**
  87          * Map for count of user's shared addresses
  88          */
  89         private static ConcurrentMap<User, Integer> countSharesList;
  90
  91         /**
  92          * Login controller
  93          */
  94         @Inject
  95         private UserLoginWebController loginController;
  96
  97         /**
  98          * A list of all user's shared (with others) address books
  99          */
 100         private List<ShareableAddressbook> sharedAddressbooks;
 101
 102         /**
 103          * A list of all user's address books
 104          */
 105         private List<Addressbook> usersAddressbooks;
 106
 107         /**
 108          * Default constructor
 109          */
 110         public AddressbookWebBean () {
 111                 // Try it
 112                 try {
 113                         // Get initial context
 114                         Context context = new InitialContext();
 115
 116                         // Try to lookup
 117                         this.addressbookBean = (AddressbookSessionBeanRemote) context.lookup("ejb/stateless-addressbook"); //NOI18N
 118                 } catch (final NamingException e) {
 119                         // Throw again
 120                         throw new FaceletException(e);
 121                 }
 122
 123                 // Init list
 124                 AddressbookWebBean.countSharesList = new ConcurrentHashMap<>(0);
 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 addressbook = new UserAddressbook(this.getAddressbookName());
 146
 147                 // Set default status to UNLOCKED and owner
 148                 addressbook.setAddressbookStatus(AddressbokStatus.UNLOCKED);
 149                 addressbook.setAddressbookUser(this.loginController.getLoggedInUser());
 150                 addressbook.setAddressbookCreated(new GregorianCalendar());
 151
 152                 try {
 153                         // Register this address book
 154                         Addressbook updatedAddressbook = this.addressbookBean.createAddressbook(addressbook);
 155
 156                         // Remove name
 157                         this.setAddressbookName(null);
 158
 159                         // Add address book entry to list
 160                         this.usersAddressbooks.add(updatedAddressbook);
 161
 162                         // All fine
 163                         return "login_own_addressbooks"; //NOI18N
 164                 } catch (final AddressbookNameAlreadyUsedException ex) {
 165                         // Throw again as cause
 166                         throw new FaceletException(ex);
 167                 }
 168         }
 169
 170         @Override
 171         public void afterAddressbookLoaded (final @Observes AddressbookLoadedEvent event) {
 172                 // event should not be null
 173                 if (null == event) {
 174                         // Throw NPE
 175                         throw new NullPointerException("event is null");
 176                 } else if (event.getAddressbook() == null) {
 177                         // Throw NPE again
 178                         throw new NullPointerException("event.addressbook is null");
 179                 } else if (event.getAddressbook().getAddressbookId() == null) {
 180                         // And again a NPE
 181                         throw new NullPointerException("event.addressbook.addressbookId is null");
 182                 } else if (event.getAddressbook().getAddressbookId() < 1) {
 183                         // Invalid id number
 184                         throw new IllegalArgumentException("Address book instance " + event.getAddressbook() + " has invalid id number: " + event.getAddressbook().getAddressbookId());
 185                 } else if (event.getAddressbook().getAddressbookUser() == null) {
 186                         // One more NPE ...
 187                         throw new NullPointerException("event.addressbook.addressbookUser is null");
 188                 }
 189
 190                 // Get address book instance
 191                 Addressbook addressbook = event.getAddressbook();
 192
 193                 // Set address book data
 194                 this.setAddressbookId(addressbook.getAddressbookId());
 195                 this.setAddressbookName(addressbook.getAddressbookName());
 196                 this.setAddressbookUser(addressbook.getAddressbookUser());
 197                 this.setAddressbookCreated(addressbook.getAddressbookCreated());
 198         }
 199
 200         @Override
 201         public List<Addressbook> allAddressbooks () {
 202                 // Is the user logged in?
 203                 if (!this.loginController.isUserLoggedIn()) {
 204                         // Not logged in
 205                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 206                 }
 207
 208                 return Collections.unmodifiableList(this.usersAddressbooks);
 209         }
 210
 211         @Override
 212         public List<AddressbookEntry> allEntries (final Addressbook addressbook) {
 213                 // Is the user logged in?
 214                 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                 // Ask the bean
 220                 return this.addressbookBean.allEntries(addressbook);
 221         }
 222
 223         @Override
 224         public int allEntriesSize (final Addressbook addressbook) {
 225                 // Ask the bean
 226                 return this.allEntries(addressbook).size();
 227         }
 228
 229         @Override
 230         public List<ShareableAddressbook> allShares () {
 231                 // Is the user logged in?
 232                 if (!this.loginController.isUserLoggedIn()) {
 233                         // Not logged in
 234                         throw new FaceletException("This method can only be called as logged-in user."); //NOI18N
 235                 }
 236
 237                 return Collections.unmodifiableList(this.sharedAddressbooks);
 238         }
 239
 240         @Override
 241         public Integer countAllUserSharedAddressbooks (final User user) {
 242                 // Is there cache?
 243                 if (AddressbookWebBean.countSharesList.containsKey(user)) {
 244                         // Return it instead
 245                         return AddressbookWebBean.countSharesList.get(user);
 246                 }
 247
 248                 // Call EJB ("expensive")
 249                 Integer count = this.addressbookBean.countAllUserSharedAddressbooks(user);
 250
 251                 // Add to list
 252                 AddressbookWebBean.countSharesList.put(user, count);
 253
 254                 // Return it
 255                 return count;
 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         @PostConstruct
 311         public void init () {
 312                 // Init list
 313                 this.usersAddressbooks = new ArrayList<>(0);
 314
 315                 // Is the user logged-in?
 316                 if (this.loginController.isUserLoggedIn()) {
 317                         // Fill list with entries
 318                         this.usersAddressbooks = this.addressbookBean.getUsersList(this.loginController.getLoggedInUser());
 319                 }
 320
 321                 // TODO Initialize list from bean with just one call
 322                 //this.addressbookBean.getUserCountMap()
 323         }
 324
 325         @Override
 326         public boolean isAddressbookNameUsed (final String addressbookName) {
 327                 // Is it zero size?
 328                 if (null == addressbookName) {
 329                         // Is null
 330                         throw new NullPointerException("addressbookName is null"); //NOI18N
 331                 } else if (this.usersAddressbooks.isEmpty()) {
 332                         // Not found!
 333                         return false;
 334                 }
 335
 336                 // Default is not found
 337                 boolean isFound = false;
 338
 339                 // Check all entries
 340                 for (final Addressbook addressbook : this.usersAddressbooks) {
 341                         // Is the name same?
 342                         if (addressbook.getAddressbookName().equals(addressbookName)) {
 343                                 // Found a match
 344                                 isFound = true;
 345                                 break;
 346                         }
 347                 }
 348
 349                 // Return status
 350                 return isFound;
 351         }
 352 }