/*
* Created on Jul 11, 2008
* Created by Paul Gardner
*
* Copyright 2008 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.subs;
import org.gudy.azureus2.core3.util.Debug;
public class
SubscriptionManagerFactory
{
final private static Class<SubscriptionManager> impl_class;
static{
String impl = System.getProperty( "az.factory.subscriptionmanager.impl", "com.aelitis.azureus.core.subs.impl.SubscriptionManagerImpl" );
Class<SubscriptionManager> temp = null;
if ( impl.length() > 0 ){
try{
temp = (Class<SubscriptionManager>)SubscriptionManagerFactory.class.getClassLoader().loadClass( impl );
}catch( Throwable e ){
Debug.out( "Failed to load SubscriptionManager class: " + impl );
}
}
impl_class = temp;
}
private static SubscriptionManager 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 SubscriptionManager
getSingleton()
{
synchronized( SubscriptionManagerFactory.class ){
if ( singleton != null ){
return( singleton );
}
if ( impl_class == null ){
throw( new RuntimeException( "No Implementation" ));
}
try{
singleton = (SubscriptionManager)impl_class.getMethod( "getSingleton", boolean.class ).invoke( null, false );
return( singleton );
}catch( Throwable e ){
throw( new RuntimeException( "No Implementation", e ));
}
}
}
}