git.mxchange.org Git - jfinancials-war.git/blob

   1 /*
   2  * Copyright (C) 2017 - 2020 Free Software Foundation
   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.jfinancials.beans.financial.model.receipt.user;
  18
  19 import java.text.MessageFormat;
  20 import java.util.LinkedList;
  21 import java.util.List;
  22 import java.util.Objects;
  23 import javax.enterprise.context.SessionScoped;
  24 import javax.enterprise.event.Observes;
  25 import javax.inject.Inject;
  26 import javax.inject.Named;
  27 import org.mxchange.jfinancials.beans.BaseFinancialsBean;
  28 import org.mxchange.jfinancials.beans.financial.model.receipt.list.FinancialsReceiptListWebViewController;
  29 import org.mxchange.jfinancials.beans.user.login.FinancialsUserLoginWebSessionController;
  30 import org.mxchange.jfinancials.events.receipt.added.ObservableReceiptAddedEvent;
  31 import org.mxchange.jfinancials.model.receipt.BillableReceipt;
  32 import org.mxchange.juserlogincore.events.login.ObservableUserLoggedInEvent;
  33
  34 /**
  35  * A view-scoped bean for receipt lists
  36  * <p>
  37  * @author Roland Haeder<roland@mxchange.org>
  38  */
  39 @Named ("userReceiptController")
  40 @SessionScoped
  41 public class FinancialsReceiptUserWebSessionBean extends BaseFinancialsBean implements FinancialsReceiptUserWebSessionController {
  42
  43         /**
  44          * Serial number
  45          */
  46         private static final long serialVersionUID = 34_869_872_672_654L;
  47
  48         /**
  49          * Receipt list controller
  50          */
  51         @Inject
  52         private FinancialsReceiptListWebViewController receiptListController;
  53
  54         /**
  55          * User instance
  56          */
  57         @Inject
  58         private FinancialsUserLoginWebSessionController userLoginController;
  59
  60         /**
  61          * User's receipts
  62          */
  63         private final List<BillableReceipt> userReceipts;
  64
  65         /**
  66          * Default constructor
  67          */
  68         public FinancialsReceiptUserWebSessionBean () {
  69                 // Call super constructor
  70                 super();
  71
  72                 // Init lists
  73                 this.userReceipts = new LinkedList<>();
  74         }
  75
  76         /**
  77          * Observes events being fired when a new receipt has been added
  78          * <p>
  79          * @param event Event being fired
  80          */
  81         public void afterAddedReceiptEvent (@Observes final ObservableReceiptAddedEvent event) {
  82                 // Validate parameter
  83                 if (null == event) {
  84                         // Throw NPE
  85                         throw new NullPointerException("event is null"); //NOI18N
  86                 } else if (event.getReceipt() == null) {
  87                         // Throw NPE again
  88                         throw new NullPointerException("event.receipt is null"); //NOI18N
  89                 } else if (event.getReceipt().getReceiptId() == null) {
  90                         // Throw it again
  91                         throw new NullPointerException("event.receipt.receiptId is null"); //NOI18N
  92                 } else if (event.getReceipt().getReceiptId() < 1) {
  93                         // Throw IAE
  94                         throw new IllegalArgumentException(MessageFormat.format("event.receipt.receiptId={0} is invalid", event.getReceipt().getReceiptId())); //NOI18N
  95                 }
  96
  97                 // Is same user?
  98                 if (this.userLoginController.isUserLoggedIn() && Objects.equals(event.getReceipt().getReceiptUser(), this.userLoginController.getLoggedInUser())) {
  99                         // Same user, then add it
 100                         this.getUserReceipts().add(event.getReceipt());
 101                 }
 102         }
 103
 104         /**
 105          * Event observer for logged-in user
 106          * <p>
 107          * @param event Event instance
 108          */
 109         public void afterUserLoginEvent (@Observes final ObservableUserLoggedInEvent event) {
 110                 // Event and contained entity instance should not be null
 111                 if (null == event) {
 112                         // Throw NPE
 113                         throw new NullPointerException("event is null"); //NOI18N
 114                 } else if (event.getLoggedInUser() == null) {
 115                         // Throw NPE again
 116                         throw new NullPointerException("event.loggedInUser is null"); //NOI18N
 117                 } else if (event.getLoggedInUser().getUserId() == null) {
 118                         // userId is null
 119                         throw new NullPointerException("event.loggedInUser.userId is null"); //NOI18N
 120                 } else if (event.getLoggedInUser().getUserId() < 1) {
 121                         // Not avalid id
 122                         throw new IllegalArgumentException(MessageFormat.format("userId of user={0} is not valid: {1}", event.getLoggedInUser(), event.getLoggedInUser().getUserId())); //NOI18N
 123                 }
 124
 125                 // Fill cache with all found user's receipts
 126                 for (final BillableReceipt receipt : this.receiptListController.getAllReceipts()) {
 127                         // Is same user?
 128                         if (Objects.equals(receipt.getReceiptUser(), event.getLoggedInUser())) {
 129                                 // Yes, then add it
 130                                 this.getUserReceipts().add(receipt);
 131                         }
 132                 }
 133         }
 134
 135         /**
 136          * Getter for user's receipts
 137          * <p>
 138          * @return User's receipts
 139          */
 140         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
 141         public List<BillableReceipt> getUserReceipts () {
 142                 return this.userReceipts;
 143         }
 144
 145 }