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/*
* Sonar, open source software quality management tool.
* Copyright (C) 2008-2012 SonarSource
* mailto:contact AT sonarsource DOT com
*
* Sonar is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* Sonar is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sonar; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.batch.components;
import org.sonar.api.BatchExtension;
import org.sonar.api.CoreProperties;
import org.sonar.api.batch.Event;
import org.sonar.api.database.DatabaseSession;
import org.sonar.api.database.model.Snapshot;
import java.util.List;
public class PastSnapshotFinderByPreviousVersion implements BatchExtension {
private final DatabaseSession session;
public PastSnapshotFinderByPreviousVersion(DatabaseSession session) {
this.session = session;
}
PastSnapshot findByPreviousVersion(Snapshot projectSnapshot) {
String currentVersion = projectSnapshot.getVersion();
Integer resourceId = projectSnapshot.getResourceId();
String hql = "from " + Event.class.getSimpleName() +
" where name<>:version AND category='Version' AND resourceId=:resourceId ORDER BY date DESC";
List<Event> events = session.createQuery(hql)
.setParameter("version", currentVersion)
.setParameter("resourceId", resourceId)
.setMaxResults(1)
.getResultList();
if (events.isEmpty()) {
return new PastSnapshot(CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION);
}
Event previousVersionEvent = events.get(0);
Snapshot snapshot = session.getSingleResult(Snapshot.class, "id", previousVersionEvent.getSnapshot().getId());
return new PastSnapshot(CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION, snapshot.getCreatedAt(), snapshot).setModeParameter(snapshot.getVersion());
}
}
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