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