UpgradeManagerImpl.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/

package org.olat.upgrade;

import java.util.Iterator;

import org.olat.core.commons.persistence.DBFactory;

/**
 * 
 * <P>
 * Initial Date:  15.08.2005 <br>
 * @author gnaegi
 * @author guido
 */
public class UpgradeManagerImpl extends UpgradeManager {
	
	/**
	 * used by spring
	 */
	public UpgradeManagerImpl() {
		//
	}

	/**
	 * Execute the pre system init code of all upgrades in the order as they were configured
	 * in the configuration file
	 */
	public void doPreSystemInitUpgrades() {
		Iterator<OLATUpgrade> iter = upgrades.iterator();
		OLATUpgrade upgrade = null;
		try {
			while (iter.hasNext()) {
				upgrade = iter.next();
				if (upgrade.doPreSystemInitUpgrade(this))
					logAudit("Successfully installed PreSystemInitUpgrade::" + upgrade.getVersion());
				//no DB Module is initialized in PreSystemInit State - no intermediate commit necessary.
			}
		} catch (Throwable e) {
			logWarn("Error upgrading PreSystemInitUpgrade::" + upgrade.getVersion(), e);
			abort(e);
		}
	}

	/**
	 * Execute the post system init code of all upgrades in the order as they were configured
	 * in the configuration file
	 */
	public void doPostSystemInitUpgrades() {
		Iterator<OLATUpgrade> iter = upgrades.iterator();
		OLATUpgrade upgrade = null; 
		try {
			while (iter.hasNext()) {
				upgrade = iter.next();
				if (upgrade.doPostSystemInitUpgrade(this))
					logAudit("Successfully installed PostSystemInitUpgrade::" + upgrade.getVersion());
				//just in case a doPostSystemInitUpgrade did forget it.
				DBFactory.getInstance().commitAndCloseSession();
			}
		} catch (Throwable e) {
			DBFactory.getInstance().rollbackAndCloseSession();
			logWarn("Error upgrading PostSystemInitUpgrade::" + upgrade.getVersion(), e);
			abort(e);
		} 
	}
}