/**
 * Copyright (c) 2010 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.taskomatic.task;

import com.redhat.rhn.common.db.datasource.ModeFactory;
import com.redhat.rhn.common.db.datasource.WriteMode;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

import java.util.HashMap;


/**
 * ChangeLogCleanUp
 * @version $Rev$
 */
public class ChangeLogCleanUp extends RhnJavaJob {

    /**
     * {@inheritDoc}
     */
    public void execute(JobExecutionContext arg0In)
        throws JobExecutionException {
        // TODO Auto-generated method stub
        int rowsDeleted = deleteOrphanedChangelogEntries();
        if (rowsDeleted > 0) {
            log.info("Deleted " + rowsDeleted +
                    " row(s) of orphaned package changelog data.");
        }
    }

    private int deleteOrphanedChangelogEntries() {
        WriteMode m = ModeFactory.getWriteMode(TaskConstants.MODE_NAME,
                TaskConstants.TASK_QUERY_PACKAGE_CHANGELOG_CLEANUP);
        return m.executeUpdate(new HashMap());
    }
}