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/*
* Copyright (C) 2008-2020, Juick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick.util;
import org.ocpsoft.prettytime.PrettyTime;
import java.time.Instant;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
/**
* Created by vitalyster on 04.05.2017.
*/
public class PrettyTimeFormatter {
private static final int MAX_CACHE_SIZE = 20;
// Cache PrettyTime per locale. LRU cache to prevent memory leak.
private static final Map<Locale, PrettyTime> PRETTY_TIME_LOCALE_MAP =
new LinkedHashMap<>(MAX_CACHE_SIZE + 1, 1.1F, true) {
@Override
protected boolean removeEldestEntry(Map.Entry<Locale, PrettyTime> eldest) {
return size() > MAX_CACHE_SIZE;
}
};
public String format(final Locale locale, final Instant value)
{
PrettyTime prettyTime;
synchronized (PRETTY_TIME_LOCALE_MAP) {
prettyTime = PRETTY_TIME_LOCALE_MAP.computeIfAbsent(locale, PrettyTime::new);
}
return prettyTime.format(value);
}
}
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