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.components; 021 022 import org.apache.commons.lang.time.DateUtils; 023 import org.sonar.api.BatchExtension; 024 import org.sonar.api.CoreProperties; 025 import org.sonar.api.database.DatabaseSession; 026 import org.sonar.api.database.model.Snapshot; 027 import org.sonar.api.resources.Qualifiers; 028 029 import java.util.Date; 030 import java.util.List; 031 032 public class PastSnapshotFinderByDays implements BatchExtension { 033 034 private DatabaseSession session; 035 036 public PastSnapshotFinderByDays(DatabaseSession session) { 037 this.session = session; 038 } 039 040 PastSnapshot findFromDays(Snapshot projectSnapshot, int days) { 041 Date targetDate = DateUtils.addDays(projectSnapshot.getCreatedAt(), -days); 042 String hql = "from " + Snapshot.class.getSimpleName() + " where resourceId=:resourceId AND status=:status AND createdAt<:date AND qualifier<>:lib order by createdAt asc"; 043 List<Snapshot> snapshots = session.createQuery(hql) 044 .setParameter("date", projectSnapshot.getCreatedAt()) 045 .setParameter("resourceId", projectSnapshot.getResourceId()) 046 .setParameter("status", Snapshot.STATUS_PROCESSED) 047 .setParameter("lib", Qualifiers.LIBRARY) 048 .getResultList(); 049 050 Snapshot snapshot = getNearestToTarget(snapshots, targetDate); 051 return new PastSnapshot(CoreProperties.TIMEMACHINE_MODE_DAYS, targetDate, snapshot).setModeParameter(String.valueOf(days)); 052 } 053 054 static Snapshot getNearestToTarget(List<Snapshot> snapshots, Date currentDate, int distanceInDays) { 055 Date targetDate = DateUtils.addDays(currentDate, -distanceInDays); 056 return getNearestToTarget(snapshots, targetDate); 057 } 058 059 static Snapshot getNearestToTarget(List<Snapshot> snapshots, Date targetDate) { 060 long bestDistance = Long.MAX_VALUE; 061 Snapshot nearest = null; 062 for (Snapshot snapshot : snapshots) { 063 long distance = distance(snapshot.getCreatedAt(), targetDate); 064 if (distance <= bestDistance) { 065 bestDistance = distance; 066 nearest = snapshot; 067 } 068 } 069 return nearest; 070 } 071 072 static long distance(Date d1, Date d2) { 073 return Math.abs(d1.getTime() - d2.getTime()); 074 } 075 }