/**
* Copyright (c) 2014 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public License,
* version 2 (GPLv2). There is NO WARRANTY for this software, express or
* implied, including the implied warranties of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
* along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* Red Hat trademarks are not licensed under GPLv2. No permission is
* granted to use or replicate Red Hat trademarks that are incorporated
* in this software or its documentation.
*/
package com.redhat.rhn.frontend.events;
import com.redhat.rhn.common.hibernate.HibernateFactory;
import com.redhat.rhn.common.messaging.EventMessage;
import com.redhat.rhn.domain.common.LoggingFactory;
import com.redhat.rhn.domain.server.Server;
import com.redhat.rhn.domain.server.ServerFactory;
import com.redhat.rhn.domain.user.User;
import com.redhat.rhn.frontend.action.channel.ssm.ChannelActionDAO;
import com.redhat.rhn.manager.ssm.SsmOperationManager;
import com.redhat.rhn.manager.system.UpdateBaseChannelCommand;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.Collection;
/**
* Handles performing subscription changes for servers in the SSM.
*
* @see com.redhat.rhn.frontend.events.SsmChangeChannelSubscriptionsEvent
* @version $Revision$
*/
public class SsmChangeBaseChannelSubscriptionsAction extends AbstractDatabaseAction {
/** Logger instance. */
private static Log log = LogFactory.getLog(
SsmChangeBaseChannelSubscriptionsAction.class);
/** {@inheritDoc} */
protected void doExecute(EventMessage msg) {
SsmChangeChannelSubscriptionsEvent event = (SsmChangeChannelSubscriptionsEvent) msg;
User user = event.getUser();
Collection<ChannelActionDAO> changes = event.getChanges();
/* Anything after the operation is created should be in a try..finally to
attempt to prevent a hanging, perpetually in progress operation. This is
an added safety once a taskomatic task is created to automatically time out
long requests.
*/
try {
for (ChannelActionDAO server : changes) {
Server s = ServerFactory.lookupById(server.getId());
try {
for (Long cid : server.getSubscribeChannelIds()) {
UpdateBaseChannelCommand ubcc = new UpdateBaseChannelCommand(user,
s, cid);
// don't care about the return value
ubcc.store();
}
// commit after each server to keep this from blocking other operations
HibernateFactory.commitTransaction();
}
catch (Exception e) {
// Exception just means user didn't have entitlements / permission
// to change channel subscription. Something changed since the event
// was scheduled. Can't pass the message back to the user at this
// point, let's not change anything and move along.
HibernateFactory.rollbackTransaction();
}
HibernateFactory.closeSession();
HibernateFactory.getSession();
// initialize logging
LoggingFactory.clearLogId();
LoggingFactory.setLogAuth(user.getId());
}
}
catch (Exception e) {
log.error("Error changing channel subscriptions " + event, e);
}
finally {
// Complete the action
SsmOperationManager.completeOperation(user, event.getOpId());
}
}
}