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 javax.persistence.Query;
023    
024    import org.slf4j.Logger;
025    import org.slf4j.LoggerFactory;
026    import org.sonar.api.database.DatabaseSession;
027    import org.sonar.plugins.dbcleaner.api.Purge;
028    import org.sonar.plugins.dbcleaner.api.PurgeContext;
029    
030    /**
031     * Purge Review that are attached to projects that have been deleted.
032     * 
033     * @since 2.8
034     */
035    public final class PurgeOrphanReviews extends Purge {
036    
037      private static final Logger LOG = LoggerFactory.getLogger(PurgeOrphanReviews.class);
038    
039      public PurgeOrphanReviews(DatabaseSession session) {
040        super(session);
041      }
042    
043      public void purge(PurgeContext context) {
044        DatabaseSession session = getSession();
045        
046        // delete reviews
047        Query query = session.createNativeQuery(getDeleteReviewsSqlRequest());
048        int rowDeleted = query.executeUpdate();
049        LOG.debug("- {} reviews deleted.", rowDeleted);
050        
051        // and delete review comments
052        query = session.createNativeQuery(getDeleteReviewCommentsSqlRequest());
053        rowDeleted = query.executeUpdate();
054        LOG.debug("- {} review comments deleted.", rowDeleted);
055    
056        session.commit();
057      }
058    
059      protected String getDeleteReviewsSqlRequest() {
060        return "DELETE FROM reviews WHERE project_id not in (SELECT id FROM projects WHERE scope = 'PRJ' and qualifier = 'TRK')";
061      }
062    
063      protected String getDeleteReviewCommentsSqlRequest() {
064        return "DELETE FROM review_comments WHERE review_id not in (SELECT id FROM reviews)";
065      }
066    }