001    /*
002     * SonarQube, open source software quality management tool.
003     * Copyright (C) 2008-2014 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * SonarQube 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     * SonarQube 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 License
017     * along with this program; if not, write to the Free Software Foundation,
018     * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019     */
020    package org.sonar.batch.components;
021    
022    import org.sonar.api.BatchExtension;
023    import org.sonar.api.CoreProperties;
024    import org.sonar.api.database.DatabaseSession;
025    import org.sonar.api.database.model.Snapshot;
026    import org.sonar.api.resources.Qualifiers;
027    import org.sonar.api.utils.DateUtils;
028    
029    import javax.annotation.CheckForNull;
030    import java.text.SimpleDateFormat;
031    import java.util.Date;
032    import java.util.List;
033    
034    public class PastSnapshotFinderByDate implements BatchExtension {
035    
036      private DatabaseSession session;
037    
038      public PastSnapshotFinderByDate(DatabaseSession session) {
039        this.session = session;
040      }
041    
042      PastSnapshot findByDate(Snapshot projectSnapshot, Date date) {
043        Integer projectId = projectSnapshot != null ? projectSnapshot.getResourceId() : null;
044        return findByDate(projectId, date);
045      }
046    
047      PastSnapshot findByDate(Integer projectId, Date date) {
048        Snapshot snapshot = null;
049        if (projectId != null) {
050          snapshot = findSnapshot(projectId, date);
051        }
052        SimpleDateFormat format = new SimpleDateFormat(DateUtils.DATE_FORMAT);
053        return new PastSnapshot(CoreProperties.TIMEMACHINE_MODE_DATE, date, snapshot).setModeParameter(format.format(date));
054      }
055    
056      @CheckForNull
057      private Snapshot findSnapshot(Integer projectId, Date date) {
058        String hql = "from " + Snapshot.class.getSimpleName() + " where createdAt>=:date AND resourceId=:resourceId AND status=:status AND qualifier<>:lib order by createdAt asc";
059        List<Snapshot> snapshots = session.createQuery(hql)
060            .setParameter("date", date)
061            .setParameter("resourceId", projectId)
062            .setParameter("status", Snapshot.STATUS_PROCESSED)
063            .setParameter("lib", Qualifiers.LIBRARY)
064            .setMaxResults(1)
065            .getResultList();
066    
067        return snapshots.isEmpty() ? null : snapshots.get(0);
068      }
069    }