001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.plugins.dbcleaner.purges;
021    
022    import org.sonar.api.database.DatabaseSession;
023    import org.sonar.api.database.model.Snapshot;
024    import org.sonar.plugins.dbcleaner.api.Purge;
025    import org.sonar.plugins.dbcleaner.api.PurgeContext;
026    import org.sonar.plugins.dbcleaner.api.PurgeUtils;
027    
028    import java.util.List;
029    
030    import javax.persistence.Query;
031    
032    /**
033     * @since 1.11
034     */
035    public final class PurgeDeprecatedLast extends Purge {
036    
037      public PurgeDeprecatedLast(DatabaseSession session) {
038        super(session);
039      }
040    
041      public void purge(PurgeContext context) {
042        Query query = getSession().createQuery("SELECT s.id FROM " + Snapshot.class.getSimpleName() +
043            " s WHERE s.last=:last AND s.rootId IS NOT NULL AND NOT EXISTS(FROM " + Snapshot.class.getSimpleName() + " s2 WHERE s2.id=s.rootId AND s2.last=:last)");
044        query.setParameter("last", Boolean.TRUE);
045        List<Integer> snapshotIds = query.getResultList();
046    
047        PurgeUtils.deleteSnapshotsData(getSession(), snapshotIds);
048      }
049    }