/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.hornetq.ra.recovery;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Set;
import org.hornetq.jms.client.HornetQConnectionFactory;
import org.hornetq.jms.server.recovery.HornetQRegistryBase;
import org.hornetq.jms.server.recovery.XARecoveryConfig;
import org.hornetq.ra.HornetQRALogger;
import org.hornetq.utils.ClassloadingUtil;
import org.hornetq.utils.ConcurrentHashSet;
/**
* @author <a href="mailto:andy.taylor@jboss.org">Andy Taylor</a>
* 9/21/11
*/
public final class RecoveryManager
{
private HornetQRegistryBase registry;
private static final String RESOURCE_RECOVERY_CLASS_NAMES = "org.jboss.as.messaging.jms.AS7RecoveryRegistry;"
+ "org.jboss.as.integration.hornetq.recovery.AS5RecoveryRegistry";
private final Set<XARecoveryConfig> resources = new ConcurrentHashSet<XARecoveryConfig>();
public void start(final boolean useAutoRecovery)
{
if (useAutoRecovery)
{
locateRecoveryRegistry();
}
else
{
registry = null;
}
}
public XARecoveryConfig register(HornetQConnectionFactory factory, String userName, String password)
{
HornetQRALogger.LOGGER.debug("registering recovery for factory : " + factory);
XARecoveryConfig config = newResourceConfig(factory, userName, password);
resources.add(config);
if (registry != null)
{
registry.register(config);
}
return config;
}
/**
* @param factory
* @param userName
* @param password
* @return
*/
private XARecoveryConfig newResourceConfig(HornetQConnectionFactory factory,
String userName,
String password)
{
if (factory.getServerLocator().getDiscoveryGroupConfiguration() != null)
{
return new XARecoveryConfig(factory.getServerLocator().isHA(), factory.getServerLocator().getDiscoveryGroupConfiguration(), userName, password);
}
else
{
return new XARecoveryConfig(factory.getServerLocator().isHA(), factory.getServerLocator().getStaticTransportConfigurations(), userName, password);
}
}
public void unRegister(XARecoveryConfig resourceRecovery)
{
if (registry != null)
{
registry.unRegister(resourceRecovery);
}
}
public void stop()
{
if (registry != null)
{
for (XARecoveryConfig recovery : resources)
{
registry.unRegister(recovery);
}
}
resources.clear();
}
private void locateRecoveryRegistry()
{
String locatorClasses[] = RESOURCE_RECOVERY_CLASS_NAMES.split(";");
for (String locatorClasse : locatorClasses)
{
try
{
registry = (HornetQRegistryBase) safeInitNewInstance(locatorClasse);
}
catch (Throwable e)
{
HornetQRALogger.LOGGER.debug("unable to load recovery registry " + locatorClasse, e);
}
if (registry != null)
{
break;
}
}
if (registry != null)
{
HornetQRALogger.LOGGER.debug("Recovery Registry located = " + registry);
}
}
/** This seems duplicate code all over the place, but for security reasons we can't let something like this to be open in a
* utility class, as it would be a door to load anything you like in a safe VM.
* For that reason any class trying to do a privileged block should do with the AccessController directly.
*/
private static Object safeInitNewInstance(final String className)
{
return AccessController.doPrivileged(new PrivilegedAction<Object>()
{
public Object run()
{
return ClassloadingUtil.newInstanceFromClassLoader(className);
}
});
}
}