src/org/mxchange/jproduct/events/category/CategoryAddedEvent.java

   1 /*
   2  * Copyright (C) 2016, 2017 Roland Häder
   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.jproduct.events.category;
  18
  19 import java.text.MessageFormat;
  20 import org.mxchange.jproduct.model.category.Category;
  21
  22 /**
  23  * An event fired when a new shop category has been added.
  24  * <p>
  25  * @author Roland Häder<roland@mxchange.org>
  26  */
  27 public class CategoryAddedEvent implements AddedCategoryEvent {
  28
  29         /**
  30          * Serial number
  31          */
  32         private static final long serialVersionUID = 83_275_471_765_091_760L;
  33
  34         /**
  35          * Category instance that has been added
  36          */
  37         private final Category addedCategory;
  38
  39         /**
  40          * Constructor with added category instance
  41          * <p>
  42          * @param addedCategory Added category
  43          */
  44         public CategoryAddedEvent (final Category addedCategory) {
  45                 // The category should be valid
  46                 if (null == addedCategory) {
  47                         // Is NULL, throw NPE
  48                         throw new NullPointerException("addedCategory is null"); //NOI18N
  49                 } else if (addedCategory.getCategoryTitle().isEmpty()) {
  50                         // Empty title
  51                         throw new IllegalArgumentException("addedCategory.categoryTitle is empty"); //NOI18N
  52                 } else if (addedCategory.getCategoryId() == null) {
  53                         // Id is NULL
  54                         throw new NullPointerException("addedCategory.categoryId is null"); //NOI18N
  55                 } else if (addedCategory.getCategoryId() <= 0) {
  56                         // Not valid id
  57                         throw new IllegalArgumentException(MessageFormat.format("addedCategory.categoryId={0} is not valid.", addedCategory.getCategoryId())); //NOI18N
  58                 }
  59
  60                 // Set it here
  61                 this.addedCategory = addedCategory;
  62         }
  63
  64         @Override
  65         public Category getAddedCategory () {
  66                 return this.addedCategory;
  67         }
  68
  69 }