001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 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.batch.index;
021    
022    import org.sonar.api.batch.Event;
023    import org.sonar.api.database.DatabaseSession;
024    import org.sonar.api.database.model.Snapshot;
025    import org.sonar.api.resources.Resource;
026    
027    import java.util.Collections;
028    import java.util.List;
029    
030    public final class EventPersister {
031      private DatabaseSession session;
032      private ResourcePersister resourcePersister;
033    
034      public EventPersister(DatabaseSession session, ResourcePersister resourcePersister) {
035        this.session = session;
036        this.resourcePersister = resourcePersister;
037      }
038    
039      public List<Event> getEvents(Resource resource) {
040        Snapshot snapshot = resourcePersister.getSnapshot(resource);
041        if (snapshot == null) {
042          return Collections.emptyList();
043        }
044        return session.getResults(Event.class, "resourceId", snapshot.getResourceId());
045      }
046    
047      public void deleteEvent(Event event) {
048        session.removeWithoutFlush(event);
049        session.commit();
050      }
051    
052      public void saveEvent(Resource resource, Event event) {
053        Snapshot snapshot = resourcePersister.getSnapshotOrFail(resource);
054        if (event.getDate() == null) {
055          event.setSnapshot(snapshot);
056        } else {
057          event.setResourceId(snapshot.getResourceId());
058        }
059        session.save(event);
060        session.commit();
061    
062      }
063    }