src/org/mxchange/jshopcore/model/basket/BaseBasket.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.jshopcore.model.basket;
  18
  19 import java.io.IOException;
  20 import java.lang.reflect.InvocationTargetException;
  21 import java.sql.SQLException;
  22 import java.text.MessageFormat;
  23 import java.util.Map;
  24 import org.mxchange.jcoree.BaseEeSystem;
  25 import org.mxchange.jshopcore.model.item.AddableBasketItem;
  26
  27 /**
  28  * A general basket class
  29  *
  30  * @author Roland Haeder
  31  * @param <T> Any instance that implements AddableBasketItem
  32  */
  33 public abstract class BaseBasket<T extends AddableBasketItem> extends BaseEeSystem implements Basket<T> {
  34         /**
  35          * Serial number
  36          */
  37         private static final long serialVersionUID = 782_396_762_230_845_717L;
  38
  39         /**
  40          * Protected constructor with session instance
  41          *
  42          * @throws java.sql.SQLException If an SQL error occurs
  43          */
  44         protected BaseBasket () throws SQLException {
  45                 // Trace message
  46                 this.getLogger().logTrace("CALLED!"); //NOI18N
  47         }
  48
  49         @Override
  50         public void init () throws SQLException {
  51                 // Trace message
  52                 this.getLogger().logTrace("CALLED!"); //NOI18N
  53         }
  54
  55         @Override
  56         @SuppressWarnings ("unchecked")
  57         public void addItem (final T item) throws IOException, SQLException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
  58                 // Trace call
  59                 this.getLogger().logTrace(MessageFormat.format("item={0} - CALLED!", item)); //NOI18N
  60
  61                 // item must not be null
  62                 if (null == item) {
  63                         // Then abort here
  64                         throw new NullPointerException("item is null"); //NOI18N
  65                 } else if (this.isAdded(item)) {
  66                         // Already been added
  67                         throw new IllegalArgumentException("item has already been added. Did you miss to call isAdded()?"); //NOI18N
  68                 }
  69
  70                 // Add item to database
  71                 // TODO: ((BasketFrontend) this.getFrontend()).addItem(item, this.getSessionId());
  72
  73                 // Trace call
  74                 this.getLogger().logTrace("EXIT!"); //NOI18N
  75         }
  76
  77         @Override
  78         public boolean isEmpty () throws IOException, SQLException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
  79                 // Deligate call to frontend
  80                 // TODO: return ((BasketFrontend) this.getFrontend()).isEmpty();
  81                 throw new UnsupportedOperationException("Not yet implmeneted.");
  82         }
  83
  84         @Override
  85         @SuppressWarnings("unchecked")
  86         public Map<Long, T> getAll () throws IOException, SQLException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
  87                 // Trace message
  88                 this.getLogger().logTrace("CALLED!"); //NOI18N
  89
  90                 // Init map
  91                 // TODO: Map<Long, T> map = ((BasketFrontend) this.getFrontend()).getAll();
  92                 Map<Long, T> map = null;
  93
  94                 // Trace message
  95                 this.getLogger().logTrace("map=" + map); //NOI18N
  96
  97                 // Return it
  98                 return map;
  99         }
 100
 101         @Override
 102         public AddableBasketItem getLast () throws IOException, SQLException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
 103                 // Deligate to frontend
 104                 // TODO: return ((BasketFrontend) this.getFrontend()).getLast();
 105                 throw new UnsupportedOperationException("Not yet implmeneted.");
 106         }
 107
 108         @Override
 109         public int getLastNumRows () {
 110                 // Deligate to frontend
 111                 // TODO: return this.getFrontend().getLastNumRows();
 112                 throw new UnsupportedOperationException("Not yet implmeneted.");
 113         }
 114
 115         @Override
 116         public boolean isAdded (final T item) throws IOException, SQLException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
 117                 // Trace call
 118                 this.getLogger().logTrace(MessageFormat.format("item={0} - CALLED!", item)); //NOI18N
 119
 120                 // item must not be null
 121                 if (null == item) {
 122                         // Then abort here
 123                         throw new NullPointerException("item is null"); //NOI18N
 124                 }
 125
 126                 // Call map's method
 127                 // TODO: boolean isAdded = ((BasketFrontend) this.getFrontend()).isAdded(item, this.getSessionId());
 128                 boolean isAdded = true;
 129
 130                 // Trace message
 131                 this.getLogger().logTrace(MessageFormat.format("isAdded={0} - EXIT!", isAdded)); //NOI18N
 132
 133                 // Return it
 134                 return isAdded;
 135         }
 136 }