Initial Datapack part for logger rework

L2J_DataPack/.classpath

@@ -4,5 +4,6 @@
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8" />
 	<classpathentry combineaccessrules="false" kind="src" path="/L2J_Server" />
 	<classpathentry kind="lib" path="/L2J_Server/dist/libs/mmocore.jar" />
+	<classpathentry kind="lib" path="/L2J_Server/dist/libs/slf4j-api-1.7.12.jar" />
 	<classpathentry kind="output" path="bin" />
 </classpath>
\ No newline at end of file

L2J_DataPack/dist/game/data/scripts/ai/npc/NpcBuffers/NpcBuffersData.java

@@ -22,7 +22,6 @@ import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
-import java.util.logging.Level;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.NamedNodeMap;
@@ -32,6 +31,7 @@ import com.l2jserver.gameserver.model.StatsSet;
 import com.l2jserver.util.data.xml.IXmlReader;
 
 /**
+ * NPC Buffers data.
  * @author UnAfraid
  */
 public class NpcBuffersData implements IXmlReader
@@ -47,7 +47,7 @@ public class NpcBuffersData implements IXmlReader
 	public void load()
 	{
 		parseDatapackFile("data/scripts/ai/npc/NpcBuffers/NpcBuffersData.xml");
-		LOGGER.log(Level.INFO, getClass().getSimpleName() + ": Loaded: " + _npcBuffers.size() + " buffers data.");
+		LOGGER.info("{}: Loaded: {} buffers data.", getClass().getSimpleName(), _npcBuffers.size());
 	}
 	
 	@Override

L2J_DataPack/dist/game/data/scripts/hellbound/HellboundPointData.java

@@ -45,7 +45,7 @@ public final class HellboundPointData implements IXmlReader
 	{
 		_pointsInfo.clear();
 		parseDatapackFile("data/scripts/hellbound/hellboundTrustPoints.xml");
-		LOGGER.info(getClass().getSimpleName() + ": Loaded " + _pointsInfo.size() + " trust point reward data.");
+		LOGGER.info("{}: Loaded {} trust point reward data.", getClass().getSimpleName(), _pointsInfo.size());
 	}
 	
 	@Override
@@ -75,7 +75,7 @@ public final class HellboundPointData implements IXmlReader
 			Node att = attrs.getNamedItem("id");
 			if (att == null)
 			{
-				LOGGER.severe(getClass().getSimpleName() + ": Missing NPC ID, skipping record!");
+				LOGGER.error("{}: Missing NPC ID, skipping record!", getClass().getSimpleName());
 				return;
 			}
 			
@@ -83,7 +83,7 @@ public final class HellboundPointData implements IXmlReader
 			att = attrs.getNamedItem("points");
 			if (att == null)
 			{
-				LOGGER.severe("[Hellbound Trust Points Info] Missing reward point info for NPC ID " + npcId + ", skipping record");
+				LOGGER.error("{}: Missing reward point info for NPC ID {}, skipping record", getClass().getSimpleName(), npcId);
 				return;
 			}
 			
@@ -91,7 +91,7 @@ public final class HellboundPointData implements IXmlReader
 			att = attrs.getNamedItem("minHellboundLvl");
 			if (att == null)
 			{
-				LOGGER.severe("[Hellbound Trust Points Info] Missing minHellboundLvl info for NPC ID " + npcId + ", skipping record");
+				LOGGER.error("{}: Missing minHellboundLvl info for NPC ID {}, skipping record!", getClass().getSimpleName());
 				return;
 			}
 			
@@ -99,7 +99,7 @@ public final class HellboundPointData implements IXmlReader
 			att = attrs.getNamedItem("maxHellboundLvl");
 			if (att == null)
 			{
-				LOGGER.severe("[Hellbound Trust Points Info] Missing maxHellboundLvl info for NPC ID " + npcId + ", skipping record");
+				LOGGER.error("{}: Missing maxHellboundLvl info for NPC ID {}, skipping record!", getClass().getSimpleName(), npcId);
 				return;
 			}
 			

L2J_DataPack/dist/game/data/scripts/hellbound/HellboundSpawns.java

@@ -52,7 +52,7 @@ public final class HellboundSpawns implements IXmlReader
 		_spawns.clear();
 		_spawnLevels.clear();
 		parseDatapackFile("data/scripts/hellbound/hellboundSpawns.xml");
-		LOGGER.info(getClass().getSimpleName() + ": Loaded " + _spawns.size() + " Hellbound spawns.");
+		LOGGER.info("{}: Loaded {} Hellbound spawns.", getClass().getSimpleName(), _spawns.size());
 	}
 	
 	@Override
@@ -81,7 +81,7 @@ public final class HellboundSpawns implements IXmlReader
 			final Node id = npc.getAttributes().getNamedItem("id");
 			if (id == null)
 			{
-				LOGGER.severe(getClass().getSimpleName() + ":  Missing NPC ID, skipping record!");
+				LOGGER.error("{}:  Missing NPC ID, skipping record!", getClass().getSimpleName());
 				return;
 			}
 			
@@ -124,7 +124,7 @@ public final class HellboundSpawns implements IXmlReader
 				spawn.setAmount(1);
 				if (loc == null)
 				{
-					LOGGER.warning("Hellbound spawn location is null!");
+					LOGGER.warn("{}: Hellbound spawn location is null!", getClass().getSimpleName());
 				}
 				spawn.setLocation(loc);
 				spawn.setRespawnDelay(delay, randomInterval);
@@ -138,7 +138,7 @@ public final class HellboundSpawns implements IXmlReader
 			}
 			catch (SecurityException | ClassNotFoundException | NoSuchMethodException e)
 			{
-				LOGGER.warning(getClass().getSimpleName() + ": Couldn't load spawns: " + e.getMessage());
+				LOGGER.warn("{}: Couldn't load spawns!", getClass().getSimpleName(), e);
 			}
 		}
 	}