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/*
* Copyright (C) 2008-2023, 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 java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.ReentrantLock;
public class ReentrantLockMap {
ConcurrentHashMap<String, ReentrantLock> mapStringLock;
public ReentrantLockMap() {
mapStringLock = new ConcurrentHashMap<>();
}
public ReentrantLock getLock(String key) {
ReentrantLock initValue = createIntanceLock();
ReentrantLock lock = mapStringLock.putIfAbsent(key, initValue);
if (lock == null) {
lock = initValue;
}
return lock;
}
public void retainLock(String key) {
mapStringLock.remove(key);
}
protected ReentrantLock createIntanceLock() {
return new ReentrantLock();
}
}
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