/*
* Created on Jan 27, 2009
* Created by Paul Gardner
*
* Copyright 2009 Vuze, Inc. All rights reserved.
*
* 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; version 2 of the License only.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
package com.aelitis.azureus.core.devices;
import org.gudy.azureus2.core3.util.Debug;
public class
DeviceManagerFactory
{
final private static Class<DeviceManager> impl_class;
static{
String impl = System.getProperty( "az.factory.devicemanager.impl", "com.aelitis.azureus.core.devices.impl.DeviceManagerImpl" );
Class<DeviceManager> temp = null;
if ( impl.length() > 0 ){
try{
temp = (Class<DeviceManager>)DeviceManagerFactory.class.getClassLoader().loadClass( impl );
}catch( Throwable e ){
Debug.out( "Failed to load DeviceManagerFactory class: " + impl );
}
}
impl_class = temp;
}
private static DeviceManager singleton;
public static void
preInitialise()
{
if ( impl_class != null ){
try{
impl_class.getMethod( "preInitialise" ).invoke( null, (Object[])null );
}catch( Throwable e ){
Debug.out( "preInitialise failed", e );
}
}
}
public static DeviceManager
getSingleton()
{
synchronized( DeviceManagerFactory.class ){
if ( singleton != null ){
return( singleton );
}
if ( impl_class == null ){
throw( new RuntimeException( "No Implementation" ));
}
try{
singleton = (DeviceManager)impl_class.getMethod( "getSingleton" ).invoke( null, (Object[])null );
return( singleton );
}catch( Throwable e ){
throw( new RuntimeException( "No Implementation", e ));
}
}
}
}