plantuml/src/net/sourceforge/plantuml/stats/HistoricalData.java

123 lines
3.5 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2023, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML 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 General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.stats;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;
import net.sourceforge.plantuml.log.Logger;
import net.sourceforge.plantuml.version.Version;
public class HistoricalData {
final private Preferences prefs;
private ParsedGenerated current;
final private List<ParsedGenerated> historical = new ArrayList<>();
HistoricalData(Preferences prefs) {
this.prefs = prefs;
try {
historical.addAll(reload());
} catch (BackingStoreException e) {
Logger.error(e);
}
Collections.sort(historical, getIdComparator());
}
public void reset() {
char currentCode = (char) ('A' + historical.size());
if (historical.size() > 7) {
final ParsedGenerated last = historical.get(0);
final String lastName = last.parsed().getName();
currentCode = lastName.charAt("histo.".length());
}
this.current = ParsedGenerated.loadDated(prefs, "histo." + currentCode);
this.current.reset();
final long maxId = getMaxId();
this.current.parsedDated().setComment(Long.toString(maxId + 1, 36) + "/" + Version.versionString());
}
private long getMaxId() {
long v = 0;
for (ParsedGenerated histo : historical) {
v = Math.max(v, histo.getId());
}
return v;
}
private Comparator<? super ParsedGenerated> getIdComparator() {
return new Comparator<ParsedGenerated>() {
public int compare(ParsedGenerated v1, ParsedGenerated v2) {
final long time1 = v1.getId();
final long time2 = v2.getId();
if (time1 > time2) {
return 1;
}
if (time1 < time2) {
return -1;
}
return 0;
}
};
}
private List<ParsedGenerated> reload() throws BackingStoreException {
final List<ParsedGenerated> result = new ArrayList<>();
final int length = "histo.".length();
for (String key : prefs.keys()) {
if (key.startsWith("histo.") && key.endsWith(".p.saved")) {
final String name = key.substring(length, length + 1);
final ParsedGenerated load = ParsedGenerated.loadDated(prefs, "histo." + name);
result.add(load);
}
}
return result;
}
public ParsedGenerated current() {
return current;
}
public List<ParsedGenerated> getHistorical() {
return Collections.unmodifiableList(historical);
}
}