Implemented ShortcutID and fixed compile warnings

Signed-off-by: Rogiel <rogiel@rogiel.com>

src/main/java/com/l2jserver/model/game/Shortcut.java

@@ -17,6 +17,7 @@
 package com.l2jserver.model.game;
 
 import com.l2jserver.model.AbstractModel;
+import com.l2jserver.model.id.ShortcutID;
 import com.l2jserver.model.id.object.CharacterID;
 import com.l2jserver.model.id.object.ItemID;
 import com.l2jserver.model.id.template.SkillTemplateID;
@@ -25,10 +26,9 @@ import com.l2jserver.model.world.L2Character;
 /**
  * An shortcut in Lineage II game interface
  * 
- * @author <a href="http://www.rogiel.com">Rogiel</a><br />
- *         TODO create the shortcut id
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
  */
-public class Shortcut extends AbstractModel {
+public class Shortcut extends AbstractModel<ShortcutID> {
 	/**
 	 * The character id
 	 */

src/main/java/com/l2jserver/model/id/FriendID.java

@@ -41,4 +41,18 @@ public class FriendID extends AbstractCompoundID<CharacterID, CharacterID> {
 			@Assisted("id2") CharacterID id2) {
 		super(id1, id2);
 	}
+
+	/**
+	 * @return the character ID
+	 */
+	public CharacterID getCharacterID() {
+		return getID1();
+	}
+
+	/**
+	 * @return the friend ID
+	 */
+	public CharacterID getFriendID() {
+		return getID2();
+	}
 }

src/main/java/com/l2jserver/model/id/ShortcutID.java

@@ -0,0 +1,94 @@
+/*
+ * This file is part of l2jserver <l2jserver.com>.
+ *
+ * l2jserver is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * l2jserver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with l2jserver.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jserver.model.id;
+
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import com.l2jserver.model.game.Shortcut;
+import com.l2jserver.model.id.compound.AbstractCompoundID;
+import com.l2jserver.model.id.object.CharacterID;
+import com.l2jserver.model.id.object.ItemID;
+import com.l2jserver.model.id.template.SkillTemplateID;
+
+/**
+ * Each {@link Shortcut} is identified by an {@link ID}.
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
+public class ShortcutID extends AbstractCompoundID<CharacterID, ID<?>> {
+	/**
+	 * Creates a new instance
+	 * 
+	 * @param id1
+	 *            the first id
+	 * @param id2
+	 *            the second id
+	 */
+	@Inject
+	public ShortcutID(@Assisted("id1") CharacterID id1,
+			@Assisted("id2") ID<?> id2) {
+		super(id1, id2);
+	}
+
+	/**
+	 * @return the character ID
+	 */
+	public CharacterID getCharacterID() {
+		return getID1();
+	}
+
+	/**
+	 * @return the shortcut target ID
+	 */
+	public ID<?> getTargetID() {
+		return getID2();
+	}
+
+	/**
+	 * @return true if the {@link #getTargetID()} returns an
+	 *         {@link SkillTemplateID}
+	 */
+	public boolean isSkill() {
+		return getID2() instanceof SkillTemplateID;
+	}
+
+	/**
+	 * @return return the {@link #getTargetID()} casted to
+	 *         {@link SkillTemplateID}
+	 * @throws ClassCastException
+	 *             if {@link #isSkill()} returns null.
+	 */
+	public SkillTemplateID getSkillID() {
+		return (SkillTemplateID) getTargetID();
+	}
+
+	/**
+	 * @return true if the {@link #getTargetID()} returns an {@link ItemID}
+	 */
+	public boolean isItem() {
+		return getID2() instanceof ItemID;
+	}
+
+	/**
+	 * @return return the {@link #getTargetID()} casted to {@link ItemID}
+	 * @throws ClassCastException
+	 *             if {@link #isItem()} returns null.
+	 */
+	public ItemID getItemID() {
+		return (ItemID) getTargetID();
+	}
+}