--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/geo-backend/src/main/java/de/intevation/gnv/geobackend/base/connectionpool/ConnectionPoolFactory.java	Wed Sep 02 15:15:52 2009 +0000
@@ -0,0 +1,88 @@
+/**
+ * 
+ */
+package de.intevation.gnv.geobackend.base.connectionpool;
+
+import java.util.Properties;
+
+import org.apache.log4j.Logger;
+
+import de.intevation.gnv.geobackend.sde.connectionpool.ArcSDEConnectionPool;
+
+/**
+ * Factoryimplementation for the Interface ConnectionPool.
+ * This factory delivers Instances of the Interface ConnectionPool.
+ * @author Tim Englich <tim.englich@intevation.de>
+ */
+public class ConnectionPoolFactory {
+
+	
+	/**
+     * the logger, used to log exceptions and additonaly information
+     */
+    private static Logger log = Logger.getLogger(ConnectionPoolFactory.class);
+	
+    
+    /**
+     * The singleton Instance of this Factory.
+     */
+	private static ConnectionPoolFactory instance = null;
+	
+	/**
+	 * The ConnectionPool providing the Connections to the DatabaseBackends
+	 */
+	private ConnectionPool connectionPool = null;
+	
+	/**
+	 * Basic-Constructor of this Class
+	 */
+	private ConnectionPoolFactory() {
+		super();
+	}
+	
+	
+	/**
+	 * This Method provides an singleton Instance of this Class.
+	 * @return an singleton Instance of this Class
+	 */
+	public static ConnectionPoolFactory getInstance(){
+		if (instance == null){
+			instance = new ConnectionPoolFactory();
+		}
+		return instance;
+	}
+	
+	
+	/**
+	 * Getting the ConnectionPool
+	 * @return the ConnectionPool
+	 */
+	public ConnectionPool getConnectionPool(){
+		return this.connectionPool;
+	}
+	
+	
+	/**
+	 * Initializes the ConnectionPool.
+	 * Should only be called once on system startup
+	 * @param properties the Properties for the Individual Configuration of the ConnectionPool
+	 */
+	public void initializeConnectionPool(Properties properties){
+		log.debug("ConnectionPoolFactory.initializeConnectionPool");
+		if (this.connectionPool == null){
+			//TODO: Hier könnte anhand eines Flags die Instanz des Connectionpools umgeschaltet werden.
+			this.connectionPool = new ArcSDEConnectionPool();
+			this.connectionPool.initialize(properties);
+		}else{
+			log.warn("ConnectionPool already initialized");
+		}	
+	}
+	
+	/**
+	 * Checks if the ConnectionPool has already been initialized.
+	 * @return true if the ConnectionPool is initialized.
+	 */
+	public boolean isInitialized(){
+		return this.connectionPool != null;
+	}
+}