Refactor to remove abstraction.

src/engine/db/handlers/dbAccountHandler.java

@@ -63,14 +63,14 @@ public class dbAccountHandler extends dbHandlerBase {
 	public void WRITE_ADMIN_LOG(String adminName, String logEntry) {
 
 		try (Connection connection = DbManager.getConnection();
-			 PreparedStatement accountQuery = connection.prepareStatement("INSERT INTO dyn_admin_log(`dateTime`, `charName`, `eventString`)"
+			 PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO dyn_admin_log(`dateTime`, `charName`, `eventString`)"
 					 + " VALUES (?, ?, ?)")) {
 
-			accountQuery.setTimestamp(1, new java.sql.Timestamp(System.currentTimeMillis()));
-			accountQuery.setString(2, adminName);
-			accountQuery.setString(3, logEntry);
+			preparedStatement.setTimestamp(1, new java.sql.Timestamp(System.currentTimeMillis()));
+			preparedStatement.setString(2, adminName);
+			preparedStatement.setString(3, logEntry);
 
-			accountQuery.execute();
+			preparedStatement.execute();
 
 		} catch (SQLException e) {
 			Logger.error(e);
@@ -97,9 +97,9 @@ public class dbAccountHandler extends dbHandlerBase {
 		ArrayList<String> machineList = new ArrayList<>();
 
 		try (Connection connection = DbManager.getConnection();
-			 PreparedStatement accountQuery = connection.prepareStatement("select `machineID` from `dyn_trash`")) {
+			 PreparedStatement preparedStatement = connection.prepareStatement("select `machineID` from `dyn_trash`")) {
 
-			ResultSet rs = accountQuery.executeQuery();
+			ResultSet rs = preparedStatement.executeQuery();
 
 			while (rs.next())
 				machineList.add(rs.getString(1));
@@ -130,12 +130,12 @@ public class dbAccountHandler extends dbHandlerBase {
 		ArrayList<PlayerCharacter> trashList = new ArrayList<>();
 
 		try (Connection connection = DbManager.getConnection();
-			 PreparedStatement accountQuery = connection.prepareStatement("select DISTINCT UID from object \n" +
+			 PreparedStatement preparedStatement = connection.prepareStatement("select DISTINCT UID from object \n" +
 					 "where parent IN (select AccountID from dyn_login_history " +
 					 " WHERE`machineID`=?)")) {
 
-			accountQuery.setString(1, machineID);
-			ResultSet rs = accountQuery.executeQuery();
+			preparedStatement.setString(1, machineID);
+			ResultSet rs = preparedStatement.executeQuery();
 
 			while (rs.next()) {
 

src/engine/db/handlers/dbCharacterPowerHandler.java

@@ -16,6 +16,8 @@ import engine.objects.PlayerCharacter;
 import engine.server.MBServerStatics;
 import org.pmw.tinylog.Logger;
 
+import java.sql.Connection;
+import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.concurrent.ConcurrentHashMap;
@@ -28,86 +30,143 @@ public class dbCharacterPowerHandler extends dbHandlerBase {
 	}
 
 	public CharacterPower ADD_CHARACTER_POWER(CharacterPower toAdd) {
+
+		CharacterPower characterPower = null;
+
 		if (CharacterPower.getOwner(toAdd) == null || toAdd.getPower() == null) {
 			Logger.error("dbCharacterSkillHandler.ADD_Power", toAdd.getObjectUUID() + " missing owner or powersBase");
 			return null;
 		}
 
-		prepareCallable("INSERT INTO `dyn_character_power` (`CharacterID`, `powersBaseToken`, `trains`) VALUES (?, ?, ?);");
-		setLong(1, (long)CharacterPower.getOwner(toAdd).getObjectUUID());
-		setInt(2, toAdd.getPower().getToken());
-		setInt(3, toAdd.getTrains());
-		int powerID = insertGetUUID();
-		return GET_CHARACTER_POWER(powerID);
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO `dyn_character_power` (`CharacterID`, `powersBaseToken`, `trains`) VALUES (?, ?, ?);")) {
+
+			preparedStatement.setLong(1, CharacterPower.getOwner(toAdd).getObjectUUID());
+			preparedStatement.setInt(2, toAdd.getPower().getToken());
+			preparedStatement.setInt(3, toAdd.getTrains());
 
+			preparedStatement.executeUpdate();
+			ResultSet rs = preparedStatement.getGeneratedKeys();
+
+			if (rs.next())
+				characterPower = GET_CHARACTER_POWER(rs.getInt(1));
+
+		} catch (SQLException e) {
+			Logger.error(e);
+			return null;
+		}
+		return characterPower;
 	}
 
 	public int DELETE_CHARACTER_POWER(final int objectUUID) {
-		prepareCallable("DELETE FROM `dyn_character_power` WHERE `UID` = ?");
-		setLong(1, (long)objectUUID);
-		return executeUpdate();
+
+		int rowCount = 0;
+
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("DELETE FROM `dyn_character_power` WHERE `UID` = ?")) {
+
+			preparedStatement.setLong(1, objectUUID);
+			rowCount = preparedStatement.executeUpdate();
+
+		} catch (SQLException e) {
+			Logger.error(e);
+		}
+
+		return rowCount;
 	}
 
 	public CharacterPower GET_CHARACTER_POWER(int objectUUID) {
 
-		CharacterPower cp = (CharacterPower) DbManager.getFromCache(Enum.GameObjectType.CharacterPower, objectUUID);
-		if (cp != null)
-			return cp;
-		prepareCallable("SELECT * FROM `dyn_character_power` WHERE `UID` = ?");
-		setLong(1, (long)objectUUID);
-		return (CharacterPower) getObjectSingle(objectUUID);
+		CharacterPower characterPower = (CharacterPower) DbManager.getFromCache(Enum.GameObjectType.CharacterPower, objectUUID);
+
+		if (characterPower != null)
+			return characterPower;
+
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM `dyn_character_power` WHERE `UID` = ?")) {
+
+			preparedStatement.setLong(1, objectUUID);
+			ResultSet rs = preparedStatement.executeQuery();
+			characterPower = (CharacterPower) getObjectFromRs(rs);
+
+		} catch (SQLException e) {
+			Logger.error(e);
+		}
+
+		return characterPower;
 	}
 
 	public ConcurrentHashMap<Integer, CharacterPower> GET_POWERS_FOR_CHARACTER(PlayerCharacter pc) {
+
 		ConcurrentHashMap<Integer, CharacterPower> powers = new ConcurrentHashMap<>(MBServerStatics.CHM_INIT_CAP, MBServerStatics.CHM_LOAD, MBServerStatics.CHM_THREAD_LOW);
 		int objectUUID = pc.getObjectUUID();
-		prepareCallable("SELECT * FROM `dyn_character_power` WHERE CharacterID = ?");
-		setLong(1, (long)objectUUID);
-		ResultSet rs = executeQuery();
-		try {
+
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM `dyn_character_power` WHERE CharacterID = ?")) {
+
+			preparedStatement.setLong(1, (long) objectUUID);
+			ResultSet rs = preparedStatement.executeQuery();
+
 			while (rs.next()) {
 				CharacterPower cp = new CharacterPower(rs, pc);
 				if (cp.getPower() != null)
 					powers.put(cp.getPower().getToken(), cp);
 			}
-			rs.close();
+
 		} catch (SQLException e) {
-			Logger.error("CharacterPower.getCharacterPowerForCharacter", "Exception:" + e.getMessage());
-		} finally {
-			closeCallable();
+			Logger.error(e);
 		}
+
 		return powers;
 	}
 
-	public void UPDATE_TRAINS(final CharacterPower pow) {
+	public void UPDATE_TRAINS(final CharacterPower characterPower) {
+
 		//skip update if nothing changed
-		if (!pow.isTrained())
+
+		if (!characterPower.isTrained())
 			return;
 
-		prepareCallable("UPDATE `dyn_character_power` SET `trains`=? WHERE `UID`=?");
-		setShort(1, (short)pow.getTrains());
-		setInt(2, pow.getObjectUUID());
-		executeUpdate();
-		pow.setTrained(false);
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("UPDATE `dyn_character_power` SET `trains`=? WHERE `UID`=?")) {
+
+			preparedStatement.setShort(1, (short) characterPower.getTrains());
+			preparedStatement.setInt(2, characterPower.getObjectUUID());
+
+			preparedStatement.execute();
+
+		} catch (SQLException e) {
+			Logger.error(e);
+		}
+
+		characterPower.setTrained(false);
 	}
 
 	public void updateDatabase(final CharacterPower pow) {
+
 		if (pow.getPower() == null) {
-			Logger.error( "Failed to find powersBase for Power " + pow.getObjectUUID());
+			Logger.error("Failed to find powersBase for Power " + pow.getObjectUUID());
 			return;
 		}
+
 		if (CharacterPower.getOwner(pow) == null) {
-			Logger.error( "Failed to find owner for Power " + pow.getObjectUUID());
+			Logger.error("Failed to find owner for Power " + pow.getObjectUUID());
 			return;
 		}
 
+		try (Connection connection = DbManager.getConnection();
+			 PreparedStatement preparedStatement = connection.prepareStatement("UPDATE `dyn_character_power` SET `PowersBaseToken`=?, `CharacterID`=?, `trains`=? WHERE `UID`=?")) {
+
+			preparedStatement.setInt(1, pow.getPower().getToken());
+			preparedStatement.setInt(2, CharacterPower.getOwner(pow).getObjectUUID());
+			preparedStatement.setShort(3, (short) pow.getTrains());
+			preparedStatement.setInt(4, pow.getObjectUUID());
+			preparedStatement.execute();
+
+		} catch (SQLException e) {
+			Logger.error(e);
+		}
 
-		prepareCallable("UPDATE `dyn_character_power` SET `PowersBaseToken`=?, `CharacterID`=?, `trains`=? WHERE `UID`=?");
-		setInt(1, pow.getPower().getToken());
-		setInt(2, CharacterPower.getOwner(pow).getObjectUUID());
-		setShort(3, (short)pow.getTrains());
-		setInt(4, pow.getObjectUUID());
-		executeUpdate();
 		pow.setTrained(false);
 	}
 }

src/engine/db/handlers/dbKitHandler.java

@@ -20,14 +20,6 @@ public class dbKitHandler extends dbHandlerBase {
 		this.localObjectType = engine.Enum.GameObjectType.valueOf(this.localClass.getSimpleName());
 	}
 
-	public ArrayList<Kit> GET_KITS_FOR_RACE_AND_BASECLASS(int raceID, int baseClassID) {
-		prepareCallable("SELECT vk.* FROM `static_rune_validkit` vk, `static_rune_racebaseclass` rbc WHERE rbc.`RaceID` = ? "
-				+ "&& rbc.`BaseClassID` = ? && rbc.`ID` = vk.`RaceBaseClassesID`");
-		setInt(1, raceID);
-		setInt(2, baseClassID);
-		return getObjectList();
-	}
-
 	public ArrayList<Kit> GET_ALL_KITS() {
 		prepareCallable("SELECT * FROM `static_rune_validkit`");