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/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation
* version 2.1 of the License.
* This library 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 Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.bonitasoft.engine.api.PlatformAPI;
import org.bonitasoft.engine.api.impl.PlatformAPIImpl;
import org.bonitasoft.engine.exception.BonitaHomeConfigurationException;
import org.bonitasoft.engine.exception.BonitaHomeNotSetException;
import org.bonitasoft.engine.exception.BonitaRuntimeException;
import org.bonitasoft.engine.platform.PlatformNotFoundException;
import org.bonitasoft.engine.platform.session.PlatformSessionService;
import org.bonitasoft.engine.platform.session.SSessionException;
import org.bonitasoft.engine.platform.session.SSessionNotFoundException;
import org.bonitasoft.engine.platform.session.model.SPlatformSession;
import org.bonitasoft.engine.service.PlatformServiceAccessor;
import org.bonitasoft.engine.service.impl.ServiceAccessorFactory;
import org.bonitasoft.engine.sessionaccessor.SessionAccessor;
/**
* Initialize the engine and create/start or not the platform based on bonita-platform.xml
* properties used are:
* platform.create -- create the platform on startup
* node.start -- start the platform (node) on startup
* node.stop -- stop the platform (node) on shutdown
*
* @author Baptiste Mesta
*/
public class EngineInitializer {
private static final Logger LOGGER = Logger.getLogger(EngineInitializer.class.getName());
private static PlatformAPI platformAPI;
public EngineInitializer() {
super();
}
public void initializeEngine() throws Exception {
LOGGER.log(Level.INFO, "Initializing Bonita Engine...");
final long before = System.currentTimeMillis();
// create a session to call the engine
final PlatformSessionService platformSessionService = getPlatformSessionService();
final SessionAccessor sessionAccessor = getSessionAccessor();
final long sessionId = createPlatformSession(platformSessionService, sessionAccessor);
final PlatformAPI platformAPI = getPlatformAPI();
try {
if (!platformAPI.isPlatformCreated()) {
throw new PlatformNotFoundException("Can't start or stop platform if it is not created.");
}
// initialization of the platform
if (!platformAPI.isPlatformInitialized()) {
LOGGER.log(Level.INFO, "First run on this platform, initializing it...");
platformAPI.initializePlatform();
LOGGER.log(Level.INFO, "Platform initialized successfully.");
} else {
LOGGER.log(Level.INFO, "Platform is already initialized.");
}
LOGGER.log(Level.INFO, "Starting node...");
platformAPI.startNode();
LOGGER.log(Level.INFO, "Node started successfully.");
final long after = System.currentTimeMillis();
LOGGER.log(Level.INFO, "Initialization of Bonita Engine done! ( took " + (after - before) + "ms)");
} finally {
deletePlatformSession(platformSessionService, sessionAccessor, sessionId);
}
}
SessionAccessor getSessionAccessor() throws BonitaHomeNotSetException, InstantiationException,
IllegalAccessException, ClassNotFoundException, IOException, BonitaHomeConfigurationException {
return getServiceAccessorFactory().createSessionAccessor();
}
PlatformSessionService getPlatformSessionService() {
PlatformServiceAccessor result;
try {
result = getServiceAccessorFactory().createPlatformServiceAccessor();
} catch (final Exception e) {
throw new BonitaRuntimeException(e);
}
return result.getPlatformSessionService();
}
// Visible for testing
PlatformAPI getPlatformAPI() {
if (platformAPI == null) {
//in local only
platformAPI = newPlatformAPI();
}
return platformAPI;
}
protected PlatformAPI newPlatformAPI() {
return new PlatformAPIImpl();
}
private void deletePlatformSession(final PlatformSessionService platformSessionService,
final SessionAccessor sessionAccessor, final long sessionId)
throws SSessionNotFoundException {
platformSessionService.deleteSession(sessionId);
sessionAccessor.deleteSessionId();
}
private long createPlatformSession(final PlatformSessionService platformSessionService,
final SessionAccessor sessionAccessor) throws SSessionException {
final SPlatformSession createSession = platformSessionService.createSession("SYSTEM");
final long sessionId = createSession.getId();
sessionAccessor.setSessionInfo(sessionId, -1);
return sessionId;
}
public void unloadEngine() throws Exception {
LOGGER.log(Level.INFO, "Stopping Bonita Engine...");
// create a session to call the engine
final SessionAccessor sessionAccessor = getSessionAccessor();
PlatformSessionService platformSessionService = getPlatformSessionService();
final long sessionId = createPlatformSession(platformSessionService, sessionAccessor);
final PlatformAPI platformAPI = getPlatformAPI();
try {
if (!platformAPI.isNodeStarted()) {
LOGGER.log(Level.INFO, "Node is not started, nothing to do.");
return;
}
LOGGER.log(Level.INFO, "Stopping node...");
platformAPI.stopNode();
} catch (final Throwable e) {
LOGGER.log(Level.SEVERE, "Issue while stopping the platform", e);
} finally {
deletePlatformSession(platformSessionService, sessionAccessor, sessionId);
// after that the engine is unloaded
getServiceAccessorFactory().destroyAccessors();
LOGGER.log(Level.INFO, "Bonita Engine stopped!");
}
}
ServiceAccessorFactory getServiceAccessorFactory() {
return ServiceAccessorFactory.getInstance();
}
}
