[백지현] 1차 과제 제출

Java/src/main/java/com/gildedrose/GildedRose.java

@@ -1,5 +1,8 @@
 package com.gildedrose;
 
+import com.gildedrose.update.Logic;
+import com.gildedrose.update.LogicFactory;
+
 class GildedRose {
     Item[] items;
 
@@ -8,55 +11,9 @@ public GildedRose(Item[] items) {
     }
 
     public void updateQuality() {
-        for (int i = 0; i < items.length; i++) {
-            if (!items[i].name.equals("Aged Brie")
-                    && !items[i].name.equals("Backstage passes to a TAFKAL80ETC concert")) {
-                if (items[i].quality > 0) {
-                    if (!items[i].name.equals("Sulfuras, Hand of Ragnaros")) {
-                        items[i].quality = items[i].quality - 1;
-                    }
-                }
-            } else {
-                if (items[i].quality < 50) {
-                    items[i].quality = items[i].quality + 1;
-
-                    if (items[i].name.equals("Backstage passes to a TAFKAL80ETC concert")) {
-                        if (items[i].sellIn < 11) {
-                            if (items[i].quality < 50) {
-                                items[i].quality = items[i].quality + 1;
-                            }
-                        }
-
-                        if (items[i].sellIn < 6) {
-                            if (items[i].quality < 50) {
-                                items[i].quality = items[i].quality + 1;
-                            }
-                        }
-                    }
-                }
-            }
-
-            if (!items[i].name.equals("Sulfuras, Hand of Ragnaros")) {
-                items[i].sellIn = items[i].sellIn - 1;
-            }
-
-            if (items[i].sellIn < 0) {
-                if (!items[i].name.equals("Aged Brie")) {
-                    if (!items[i].name.equals("Backstage passes to a TAFKAL80ETC concert")) {
-                        if (items[i].quality > 0) {
-                            if (!items[i].name.equals("Sulfuras, Hand of Ragnaros")) {
-                                items[i].quality = items[i].quality - 1;
-                            }
-                        }
-                    } else {
-                        items[i].quality = items[i].quality - items[i].quality;
-                    }
-                } else {
-                    if (items[i].quality < 50) {
-                        items[i].quality = items[i].quality + 1;
-                    }
-                }
-            }
+        for (Item item : items) {
+            Logic logic = LogicFactory.getLogic(item);
+            logic.update(item);
         }
     }
 }

Java/src/main/java/com/gildedrose/update/AgedBrie.java

@@ -0,0 +1,24 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class AgedBrie implements Logic{
+    @Override
+    public void update(Item item) {
+        decreaseSellIn(item);
+        increaseQuality(item);
+        if (item.sellIn < 0) {
+            increaseQuality(item);
+        }
+    }
+
+    private void decreaseSellIn(Item item) {
+        item.sellIn--;
+    }
+
+    private void increaseQuality(Item item) {
+        if (item.quality < 50) {
+            item.quality++;
+        }
+    }
+}

Java/src/main/java/com/gildedrose/update/BackstagePass.java

@@ -0,0 +1,33 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class BackstagePass implements Logic{
+    @Override
+    public void update(Item item) {
+        decreaseSellIn(item);
+        increaseQuality(item);
+
+        if (item.sellIn <= 10) {
+            increaseQuality(item);
+        }
+
+        if (item.sellIn <= 5) {
+            increaseQuality(item);
+        }
+
+        if (item.sellIn < 0) {
+            item.quality = 0;
+        }
+    }
+
+    private void decreaseSellIn(Item item) {
+        item.sellIn--;
+    }
+
+    private void increaseQuality(Item item) {
+        if (item.quality < 50) {
+            item.quality++;
+        }
+    }
+}

Java/src/main/java/com/gildedrose/update/Conjured.java

@@ -0,0 +1,24 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class Conjured implements Logic{
+    @Override
+    public void update(Item item) {
+        decreaseSellIn(item);
+        decreaseQualityTwice(item);
+        if (item.sellIn < 0) {
+            decreaseQualityTwice(item);
+        }
+    }
+
+    private void decreaseSellIn(Item item) {
+        item.sellIn--;
+    }
+
+    private void decreaseQualityTwice(Item item) {
+        if (item.quality > 0) {
+            item.quality = Math.max(0, item.quality - 2);
+        }
+    }
+}

Java/src/main/java/com/gildedrose/update/Logic.java

@@ -0,0 +1,7 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public interface Logic {
+    void update(Item item);
+}

Java/src/main/java/com/gildedrose/update/LogicFactory.java

@@ -0,0 +1,20 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class LogicFactory {
+    public static Logic getLogic(Item item) {
+        switch (item.name) {
+            case "Aged Brie":
+                return new AgedBrie();
+            case "Backstage passes to a TAFKAL80ETC concert":
+                return new BackstagePass();
+            case "Sulfuras, Hand of Ragnaros":
+                return new Sulfuras();
+            case "Conjured Mana Cake":
+                return new Conjured();
+            default:
+                return new NormalItem();
+        }
+    }
+}

Java/src/main/java/com/gildedrose/update/NormalItem.java

@@ -0,0 +1,24 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class NormalItem implements Logic{
+    @Override
+    public void update(Item item) {
+        decreaseSellIn(item);
+        decreaseQuality(item);
+        if (item.sellIn < 0) {
+            decreaseQuality(item);
+        }
+    }
+
+    private void decreaseSellIn(Item item) {
+        item.sellIn--;
+    }
+
+    private void decreaseQuality(Item item) {
+        if (item.quality > 0) {
+            item.quality--;
+        }
+    }
+}

Java/src/main/java/com/gildedrose/update/Sulfuras.java

@@ -0,0 +1,10 @@
+package com.gildedrose.update;
+
+import com.gildedrose.Item;
+
+public class Sulfuras implements Logic{
+    @Override
+    public void update(Item item) {
+
+    }
+}