Connection Pool Manager

package com.trafficcast.pool;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import org.apache.commons.dbcp.ConnectionFactory;
import org.apache.commons.dbcp.DriverManagerConnectionFactory;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.dbcp.PoolingDriver;
import org.apache.commons.pool.ObjectPool;
import org.apache.commons.pool.impl.GenericObjectPool;

import com.trafficcast.bean.ConfigureInfo;

public class PoolManager {
	private static String driver = "com.mysql.jdbc.Driver",//
			url = null,
			name = "drcom", 
			password = "drcom";
	private static Class driverClass = null;
	private static ObjectPool connectionPool = null;
	private static ObjectPool incidentsConnectionPool = null;

	public PoolManager() {
	}

	/**
	 * initProperties
	 */
	private static void loadProperties() {
			url = "jdbc:mysql://"+ ConfigureInfo.dbhost + ":" + ConfigureInfo.db_port +"/tciwms";
			name = ConfigureInfo.username;
			password = ConfigureInfo.password;
	}
	
	/**
	 * initProperties
	 */
	private static void loadIncidentsProperties() {
			url = "jdbc:mysql://"+ ConfigureInfo.incidents_host + ":" + ConfigureInfo.db_port +"/incident_db";
			name = ConfigureInfo.incidents_username;
			password = ConfigureInfo.incidents_password;
	}

	/**
	 * Init the datasource
	 */
	private static synchronized void initDataSource() {
		if (driverClass == null) {
			try {
				driverClass = Class.forName(driver);
			} catch (ClassNotFoundException e) {
				e.printStackTrace();
			}
		}
	}

	/**
	 * Start the conntion pool
	 * 
	 * @throws Exception
	 */
	public static void StartPool() {
		loadProperties();
		initDataSource();
		if (connectionPool != null) {
			ShutdownPool();
		}
		try {
			connectionPool = new GenericObjectPool(null);
			ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(
					url, name, password);
			PoolableConnectionFactory poolableConnectionFactory = new PoolableConnectionFactory(
					connectionFactory, connectionPool, null, null, false, true);
			Class.forName("org.apache.commons.dbcp.PoolingDriver");
			PoolingDriver driver = (PoolingDriver) DriverManager
					.getDriver("jdbc:apache:commons:dbcp:");
			driver.registerPool("dbpool", connectionPool);
			System.out.println("Start the conntion pool OK");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * Start the incidents conntion pool
	 * 
	 * @throws Exception
	 */
	public static void StartIncidnetsPool() {
		loadIncidentsProperties();
		initDataSource();
		if (incidentsConnectionPool != null) {
			ShutdownIncidentsPool();
		}
		try {
			incidentsConnectionPool = new GenericObjectPool(null);
			ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(url, name, password);
			PoolableConnectionFactory poolableConnectionFactory = new PoolableConnectionFactory(
					connectionFactory, incidentsConnectionPool, null, null, false, true);
			Class.forName("org.apache.commons.dbcp.PoolingDriver");
			PoolingDriver driver = (PoolingDriver) DriverManager.getDriver("jdbc:apache:commons:dbcp:");
			driver.registerPool("dbpool2", incidentsConnectionPool);
			System.out.println("Start the incidents conntion pool OK");
		} catch (Exception e) {
			e.printStackTrace();
		}
	
	}
	
	public static void ShutdownIncidentsPool() {
		try {
			PoolingDriver driver = (PoolingDriver) DriverManager.getDriver("jdbc:apache:commons:dbcp:");
			driver.closePool("dbpool2");
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}//end ShutdownIncidentsPool
	

	/**
	 * Release the pool
	 */
	public static void ShutdownPool() {
		try {
			PoolingDriver driver = (PoolingDriver) DriverManager
					.getDriver("jdbc:apache:commons:dbcp:");
			driver.closePool("dbpool");
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}

	/**
	 * get connection
	 * 
	 * @return
	 */
	public static Connection getConnection() {
		Connection conn = null;
		if (connectionPool == null)
			StartPool();
		try {
			conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:dbpool");
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return conn;
	}
	

	/**
	 * get connection
	 * 
	 * @return
	 */
	public static Connection getincIdentsConnection() {
		Connection conn = null;
		if (connectionPool == null)
			StartIncidentsPool();
		try {
			conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:dbpool");
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return conn;
	}

	private static void StartIncidentsPool() {
		// TODO Auto-generated method stub
		
	}

	/**
	 *  getConnection
	 * 
	 * @param name
	 * @return
	 */
	public static Connection getConnection(String name) {
		return getConnection();
	}

	/**
	 * freeConnection
	 * 
	 * @param conn
	 */
	public static void freeConnection(Connection conn) {
		if (conn != null) {
			try {
				conn.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}

	/**
	 *  freeConnection
	 * 
	 * @param name
	 * @param con
	 */
	public static void freeConnection(String name, Connection con) {
		freeConnection(con);
	}

}// end class