Bringing back older (better) sqlite handling code

src/main/java/com/gamingmesh/jobs/Jobs.java

@@ -82,6 +82,7 @@ import com.gamingmesh.jobs.container.Quest;
 import com.gamingmesh.jobs.container.QuestProgression;
 import com.gamingmesh.jobs.container.blockOwnerShip.BlockOwnerShip;
 import com.gamingmesh.jobs.container.blockOwnerShip.BlockTypes;
+import com.gamingmesh.jobs.dao.JobsClassLoader;
 import com.gamingmesh.jobs.dao.JobsDAO;
 import com.gamingmesh.jobs.dao.JobsDAOData;
 import com.gamingmesh.jobs.dao.JobsManager;
@@ -140,6 +141,8 @@ public final class Jobs extends JavaPlugin {
     private static PermissionHandler permissionHandler;
     private static PermissionManager permissionManager;
 
+    private static JobsClassLoader classLoader;
+
     private final HashMap<CMIMaterial, BlockOwnerShip> blockOwnerShipsMaterial = new HashMap<>();
     private final HashMap<BlockTypes, BlockOwnerShip> blockOwnerShipsBlockType = new HashMap<>();
 
@@ -171,6 +174,12 @@ public final class Jobs extends JavaPlugin {
 	return kyoriSupported;
     }
 
+    public static JobsClassLoader getJobsClassloader() {
+	if (classLoader == null)
+	    classLoader = new JobsClassLoader(Jobs.getInstance());
+	return classLoader;
+    }
+
     /**
     * Returns the block owner ship for specific {@link CMIMaterial} type.
     * 

src/main/java/com/gamingmesh/jobs/dao/JobsClassLoader.java

@@ -0,0 +1,28 @@
+package com.gamingmesh.jobs.dao;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+
+import com.gamingmesh.jobs.Jobs;
+
+public class JobsClassLoader extends URLClassLoader {
+
+    public JobsClassLoader(Jobs core) {
+	super(new URL[0], core.getClass().getClassLoader());
+    }
+
+    public void addFile(File f) throws IOException {
+	addURL(f.toURI().toURL());
+    }
+
+    @Override
+    public void addURL(URL url) {
+	for (URL u : getURLs())
+	    if (url.sameFile(u))
+		return;
+
+	super.addURL(url);
+    }
+}

src/main/java/com/gamingmesh/jobs/dao/JobsConnectionPool.java

@@ -1,8 +1,12 @@
 package com.gamingmesh.jobs.dao;
 
+import java.sql.Connection;
+import java.sql.Driver;
 import java.sql.DriverManager;
 import java.sql.SQLException;
 
+import com.gamingmesh.jobs.Jobs;
+
 public class JobsConnectionPool {
 
     private JobsConnection connection;
@@ -10,37 +14,36 @@ public class JobsConnectionPool {
     private String username;
     private String password;
 
-    public JobsConnectionPool(String url, String username, String password) {
+    public JobsConnectionPool(String driverName, String url, String username, String password) throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException {
+	Driver driver = (Driver) Class.forName(driverName, true, Jobs.getJobsClassloader()).newInstance();
+	JobsDrivers jDriver = new JobsDrivers(driver);
+	DriverManager.registerDriver(jDriver);
 	this.url = url;
 	this.username = username;
 	this.password = password;
     }
 
     public synchronized JobsConnection getConnection() throws SQLException {
-	if (connection != null && (connection.isClosed() || !connection.isValid(1))) {
+	if (this.connection != null && (this.connection.isClosed() || !this.connection.isValid(1))) {
 	    try {
-		connection.closeConnection();
-	    } catch (SQLException e) {}
-	    connection = null;
-	}
-
-	if (connection == null) {
-	    try {
-		connection = new JobsConnection(DriverManager.getConnection(url, username, password));
+		this.connection.closeConnection();
 	    } catch (SQLException e) {
 	    }
+	    this.connection = null;
 	}
-
-	return connection;
+	if (this.connection == null) {
+	    Connection conn = DriverManager.getConnection(this.url, this.username, this.password);
+	    this.connection = new JobsConnection(conn);
+	}
+	return this.connection;
     }
 
-    public void closeConnection() {
-	if (connection != null) {
+    public synchronized void closeConnection() {
+	if (this.connection != null)
 	    try {
-		connection.closeConnection();
+		this.connection.closeConnection();
 	    } catch (SQLException e) {
 		e.printStackTrace();
 	    }
-	}
     }
-}
+}

src/main/java/com/gamingmesh/jobs/dao/JobsDAO.java

@@ -465,11 +465,15 @@ public abstract class JobsDAO {
 	try {
 	    Class.forName(driverName);
 	} catch (ClassNotFoundException c) {
-	    plugin.getLogger().log(java.util.logging.Level.WARNING, c.getLocalizedMessage());
+	    c.printStackTrace();
 	    return;
 	}
 
-	pool = new JobsConnectionPool(url, username, password);
+	try {
+	    pool = new JobsConnectionPool(driverName, url, username, password);
+	} catch (Exception e) {
+	    e.printStackTrace();
+	}
     }
 
     public final synchronized void setUp() {

src/main/java/com/gamingmesh/jobs/dao/JobsDrivers.java

@@ -0,0 +1,70 @@
+/**
+ * Jobs Plugin for Bukkit
+ * Copyright (C) 2011 Zak Ford <zak.j.ford@gmail.com>
+ * 
+ * This program 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.
+ * 
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.gamingmesh.jobs.dao;
+
+import java.sql.Connection;
+import java.sql.Driver;
+import java.sql.DriverPropertyInfo;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.Properties;
+import java.util.logging.Logger;
+
+public class JobsDrivers implements Driver {
+    private Driver driver;
+
+    public JobsDrivers(Driver driver) {
+	this.driver = driver;
+    }
+
+    @Override
+    public Connection connect(String url, Properties info) throws SQLException {
+	return driver.connect(url, info);
+    }
+
+    @Override
+    public boolean acceptsURL(String url) throws SQLException {
+	return driver.acceptsURL(url);
+    }
+
+    @Override
+    public DriverPropertyInfo[] getPropertyInfo(String url, Properties info) throws SQLException {
+	return driver.getPropertyInfo(url, info);
+    }
+
+    @Override
+    public int getMajorVersion() {
+	return driver.getMajorVersion();
+    }
+
+    @Override
+    public int getMinorVersion() {
+	return driver.getMinorVersion();
+    }
+
+    @Override
+    public boolean jdbcCompliant() {
+	return driver.jdbcCompliant();
+    }
+
+    @Override
+    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
+	return driver.getParentLogger();
+    }
+}

src/main/java/com/gamingmesh/jobs/dao/JobsSQLite.java

@@ -15,14 +15,16 @@ public class JobsSQLite extends JobsDAO {
     }
 
     public JobsSQLite initialize(File dir) {
-	dir.mkdirs();
+	if (!dir.exists())
+	    dir.mkdirs();
 	setUp();
 	return this;
     }
 
     JobsSQLite(Jobs plugin, File file) {
 	super(plugin, "org.sqlite.JDBC", "jdbc:sqlite:" + new File(file, "jobs.sqlite.db").getPath(), null, null, "");
-	file.mkdirs();
+	if (!file.exists())
+	    file.mkdirs();
 	setDbType(DataBaseType.SqLite);
     }
 
@@ -35,7 +37,7 @@ public class JobsSQLite extends JobsDAO {
 	}
 
 	executeSQL("CREATE TABLE `" + getPrefix()
-		+ "users` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `player_uuid` varchar(36) NOT NULL, `username` varchar(20), `data` text);");
+	    + "users` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `player_uuid` varchar(36) NOT NULL, `username` varchar(20), `data` text);");
     }
 
     @Override