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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.db.purge.period;
import com.google.common.collect.Lists;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import org.apache.commons.lang3.time.DateUtils;
import org.sonar.db.purge.PurgeableAnalysisDto;
final class Interval {
List<PurgeableAnalysisDto> snapshots = Lists.newArrayList();
void add(PurgeableAnalysisDto snapshot) {
snapshots.add(snapshot);
}
List<PurgeableAnalysisDto> get() {
return snapshots;
}
int count() {
return snapshots.size();
}
static List<Interval> group(List<PurgeableAnalysisDto> snapshots, Date start, Date end, int calendarField) {
List<Interval> intervals = Lists.newArrayList();
GregorianCalendar calendar = new GregorianCalendar();
int lastYear = -1;
int lastFieldValue = -1;
Interval currentInterval = null;
for (PurgeableAnalysisDto snapshot : snapshots) {
if (!DateUtils.isSameDay(start, snapshot.getDate()) && snapshot.getDate().after(start) &&
(snapshot.getDate().before(end) || DateUtils.isSameDay(end, snapshot.getDate()))) {
calendar.setTime(snapshot.getDate());
int currentFieldValue = calendar.get(calendarField);
int currentYear = calendar.get(Calendar.YEAR);
if (lastYear != currentYear || lastFieldValue != currentFieldValue) {
currentInterval = new Interval();
intervals.add(currentInterval);
}
lastFieldValue = currentFieldValue;
lastYear = currentYear;
if (currentInterval != null) {
currentInterval.add(snapshot);
}
}
}
return intervals;
}
}
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