/*
* (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* Florent Guillaume
*/
package org.nuxeo.ecm.core.management.jtajca.internal;
import java.util.HashMap;
import java.util.Map;
import javax.management.InstanceAlreadyExistsException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuxeo.ecm.core.api.CoreInstance;
import org.nuxeo.ecm.core.api.CoreSession;
import org.nuxeo.ecm.core.management.jtajca.CoreSessionMonitor;
import org.nuxeo.ecm.core.management.jtajca.Defaults;
import org.nuxeo.ecm.core.management.jtajca.ConnectionPoolMonitor;
import org.nuxeo.ecm.core.management.jtajca.TransactionMonitor;
import org.nuxeo.runtime.api.Framework;
import org.nuxeo.runtime.jtajca.NuxeoConnectionManager;
import org.nuxeo.runtime.jtajca.NuxeoContainer;
import org.nuxeo.runtime.jtajca.NuxeoContainerListener;
import org.nuxeo.runtime.management.ServerLocator;
import org.nuxeo.runtime.model.ComponentContext;
import org.nuxeo.runtime.model.DefaultComponent;
/**
* Component used to install/uninstall the monitors (transaction and connections).
*
* @since 5.6
*/
public class DefaultMonitorComponent extends DefaultComponent {
private final ConnectionManagerUpdater cmUpdater = new ConnectionManagerUpdater();
private class ConnectionManagerUpdater implements NuxeoContainerListener {
@Override
public void handleNewConnectionManager(String name, NuxeoConnectionManager cm) {
ConnectionPoolMonitor monitor = new DefaultConnectionPoolMonitor(name, cm);
monitor.install();
poolConnectionMonitors.put(name, monitor);
}
@Override
public void handleConnectionManagerReset(String name, NuxeoConnectionManager cm) {
DefaultConnectionPoolMonitor monitor = (DefaultConnectionPoolMonitor) poolConnectionMonitors.get(name);
monitor.handleNewConnectionManager(cm);
}
@Override
public void handleConnectionManagerDispose(String name, NuxeoConnectionManager mgr) {
ConnectionPoolMonitor monitor = poolConnectionMonitors.remove(name);
monitor.uninstall();
}
}
protected final Log log = LogFactory.getLog(DefaultMonitorComponent.class);
protected CoreSessionMonitor coreSessionMonitor;
protected TransactionMonitor transactionMonitor;
protected Map<String, ConnectionPoolMonitor> poolConnectionMonitors = new HashMap<>();
@Override
public void activate(ComponentContext context) {
super.activate(context);
install();
}
@Override
public void deactivate(ComponentContext context) {
uninstall();
super.deactivate(context);
}
protected boolean installed;
protected void install() {
installed = true;
coreSessionMonitor = new DefaultCoreSessionMonitor();
coreSessionMonitor.install();
transactionMonitor = new DefaultTransactionMonitor();
transactionMonitor.install();
NuxeoContainer.addListener(cmUpdater);
}
/**
* Make sure we open the repository, to initialize its connection manager.
*/
protected void activateRepository(String repositoryName) {
try (CoreSession session = CoreInstance.openCoreSessionSystem(repositoryName)) {
// do nothing, just open and close
}
}
protected void uninstall() {
if (!installed) {
return;
}
// temporary log to help diagnostics
log.warn("Total commits during server life: " + transactionMonitor.getTotalCommits());
installed = false;
NuxeoContainer.removeListener(cmUpdater);
for (ConnectionPoolMonitor storage : poolConnectionMonitors.values()) {
storage.uninstall();
}
coreSessionMonitor.uninstall();
transactionMonitor.uninstall();
poolConnectionMonitors.clear();
coreSessionMonitor = null;
transactionMonitor = null;
}
public static class ServerInstance {
public final MBeanServer server;
public final ObjectName name;
ServerInstance(MBeanServer server, ObjectName name) {
this.server = server;
this.name = name;
}
}
protected static ServerInstance bind(Object managed) {
return bind(managed, "default");
}
protected static ServerInstance bind(Class<?> itf, Object managed) {
return bind(itf, managed, "default");
}
protected static ServerInstance bind(Object managed, String name) {
return bind(managed.getClass().getInterfaces()[0], managed, name);
}
protected static ServerInstance bind(Class<?> itf, Object managed, String name) {
MBeanServer mbs = Framework.getLocalService(ServerLocator.class).lookupServer();
name = Defaults.instance.name(itf, name);
try {
ObjectInstance oi = mbs.registerMBean(managed, new ObjectName(name));
return new ServerInstance(mbs, oi.getObjectName());
} catch (InstanceAlreadyExistsException | MBeanRegistrationException | NotCompliantMBeanException
| MalformedObjectNameException e) {
throw new UnsupportedOperationException("Cannot bind " + managed + " on " + name, e);
}
}
protected static void unbind(ServerInstance instance) {
try {
instance.server.unregisterMBean(instance.name);
} catch (MBeanRegistrationException | InstanceNotFoundException e) {
LogFactory.getLog(DefaultMonitorComponent.class).error("Cannot unbind " + instance, e);
}
}
}