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.core.timemachine;
021    
022    import org.sonar.api.BatchExtension;
023    import org.sonar.api.database.DatabaseSession;
024    import org.sonar.api.database.model.ResourceModel;
025    import org.sonar.api.database.model.RuleFailureModel;
026    import org.sonar.api.database.model.Snapshot;
027    import org.sonar.api.resources.Resource;
028    
029    import javax.persistence.Query;
030    import java.util.Collections;
031    import java.util.List;
032    
033    public class ReferenceAnalysis implements BatchExtension {
034    
035      private DatabaseSession session;
036    
037      public ReferenceAnalysis(DatabaseSession session) {
038        this.session = session;
039      }
040    
041      public List<RuleFailureModel> getViolations(Resource resource) {
042        Snapshot snapshot = getSnapshot(resource);
043        if (snapshot != null) {
044          return session.getResults(RuleFailureModel.class, "snapshotId", snapshot.getId());
045        }
046        return Collections.emptyList();
047      }
048    
049      Snapshot getSnapshot(Resource resource) {
050        Query query = session.createQuery("from " + Snapshot.class.getSimpleName() + " s where s.last=:last and s.resourceId=(select r.id from "
051            + ResourceModel.class.getSimpleName() + " r where r.key=:key)");
052        query.setParameter("key", resource.getEffectiveKey());
053        query.setParameter("last", Boolean.TRUE);
054        return session.getSingleResult(query, null);
055      }
056    }