/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with VoltDB. If not, see <http://www.gnu.org/licenses/>.
*/
package org.voltdb;
/**
* Give the enterprise code a chance to do any enterprise-feature specific
* periodic maintenance.
*
*/
public abstract class EnterpriseMaintenance {
private static boolean m_searched = false;
private static EnterpriseMaintenance m_globalEM = null;
static synchronized EnterpriseMaintenance get() {
// use the cached version
if (m_searched) {
return m_globalEM;
}
// try to find the pro class and leave the global as null if no luck
Class<?> clz = null;
try {
clz = Class.forName("org.voltdb.EnterpriseMaintenanceImpl");
}
catch (ClassNotFoundException e) {
m_searched = true;
return null;
}
// try to instantiate the pro class and leave as null if no luck
try {
m_globalEM = (EnterpriseMaintenance) clz.newInstance();
}
catch (Exception e) {}
m_searched = true;
return m_globalEM;
}
abstract void setupMaintenaceTasks();
abstract void dailyMaintenaceTask();
}