Took ItemParser from the addon challenges

src/main/java/us/tastybento/bskyblock/util/ItemParser.java

@@ -0,0 +1,112 @@
+package us.tastybento.bskyblock.util;
+
+import org.apache.commons.lang.StringUtils;
+import org.bukkit.Material;
+import org.bukkit.entity.EntityType;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.PotionMeta;
+import org.bukkit.inventory.meta.SpawnEggMeta;
+import org.bukkit.potion.PotionData;
+import org.bukkit.potion.PotionType;
+
+/**
+ * Utility class that parses a String into an ItemStack.
+ * It is used for converting config file entries to objects.
+ *
+ * @author tastybento, Poslovitch
+ */
+public class ItemParser {
+
+    private ItemParser() {}
+
+    public static ItemStack parse(String s){
+        String[] part = s.split(":");
+        // Material:Qty
+        if (part.length == 2) {
+            return two(s, part);
+        } else if (part.length == 3) {
+            return three(s, part);
+        } else if (part.length == 6 && (part[0].contains("POTION") || part[0].equalsIgnoreCase("TIPPED_ARROW"))) {
+            return potion(s, part);
+        }
+        return null;
+    }
+
+    private static ItemStack three(String s, String[] part) {
+        // Rearrange
+        String[] twoer = {part[0], part[2]};
+        ItemStack result = two(s, twoer);
+        if (result == null) {
+            return null;
+        }
+        if (StringUtils.isNumeric(part[1])) {
+            result.setDurability((short) Integer.parseInt(part[1]));
+        } else if (result.getType().equals(Material.MONSTER_EGG)) {
+            // Check if this is a string
+            EntityType entityType = EntityType.valueOf(part[1]);
+            SpawnEggMeta meta = ((SpawnEggMeta)result.getItemMeta());
+            meta.setSpawnedType(entityType);
+            result.setItemMeta(meta);
+        }
+        return result;
+    }
+
+    private static ItemStack two(String s, String[] part) {
+        int reqAmount = 0;
+        try {
+            reqAmount = Integer.parseInt(part[1]);
+        } catch (Exception e) {
+            return null;
+        }
+
+        Material reqItem = Material.getMaterial(part[0].toUpperCase() + "_ITEM");
+        if (reqItem == null) {
+            // Try the item
+            reqItem = Material.getMaterial(part[0].toUpperCase());
+        }
+
+        if (reqItem == null) {
+            return null;
+        }
+        return new ItemStack(reqItem, reqAmount);
+    }
+
+    private static ItemStack potion(String s, String[] part) {
+        int reqAmount = 0;
+        try {
+            reqAmount = Integer.parseInt(part[5]);
+        } catch (Exception e) {
+            return null;
+        }
+        /*
+         * # Format POTION:NAME:<LEVEL>:<EXTENDED>:<SPLASH/LINGER>:QTY
+            # LEVEL, EXTENDED, SPLASH, LINGER are optional.
+            # LEVEL is a number, 1 or 2
+            # LINGER is for V1.9 servers and later
+            # Examples:
+            # POTION:STRENGTH:1:EXTENDED:SPLASH:1
+            # POTION:INSTANT_DAMAGE:2::LINGER:2
+            # POTION:JUMP:2:NOTEXTENDED:NOSPLASH:1
+            # POTION:WEAKNESS::::1   -  any weakness potion
+         */
+        ItemStack result = new ItemStack(Material.POTION);
+        if (part[4].equalsIgnoreCase("SPLASH")) {
+            result = new ItemStack(Material.SPLASH_POTION);
+        } else if (part[4].equalsIgnoreCase("LINGER")) {
+            result = new ItemStack(Material.LINGERING_POTION);
+        }
+        if (part[0].equalsIgnoreCase("TIPPED_ARROW")) {
+            result = new ItemStack(Material.TIPPED_ARROW);
+        }
+        result.setAmount(reqAmount);
+        PotionMeta potionMeta = (PotionMeta)(result.getItemMeta());
+        PotionType type = PotionType.valueOf(part[1].toUpperCase());
+        boolean isUpgraded = !part[2].isEmpty() && !part[2].equalsIgnoreCase("1");
+        boolean isExtended = part[3].equalsIgnoreCase("EXTENDED");
+        PotionData data = new PotionData(type, isExtended, isUpgraded);
+        potionMeta.setBasePotionData(data);
+
+        result.setAmount(reqAmount);
+        return result;
+    }
+}