/**
 * Copyright (c) 2015-2022, Michael Yang 杨福海 (fuhai999@gmail.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.jboot.objects.lock.impl;

import io.jboot.objects.lock.JbootLock;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;

/**
 * @author michael yang (fuhai999@gmail.com)
 * @Date: 2020/3/7
 */
public class JbootLocalLock implements JbootLock {

    private static Map<String, ReentrantLock> LOCKS = new HashMap<>();

    private ReentrantLock lock;

    public JbootLocalLock(String name) {
        lock = LOCKS.get(name);
        if (lock == null) {
            synchronized (JbootLocalLock.class) {
                lock = LOCKS.get(name);
                if (lock == null) {
                    lock = new ReentrantLock();
                    LOCKS.put(name, lock);
                }
            }
        }
    }

    @Override
    public void lock() {
        lock.lock();
    }

    @Override
    public void lockInterruptibly() throws InterruptedException {
        lock.lockInterruptibly();
    }

    @Override
    public boolean tryLock() {
        return lock.tryLock();
    }

    @Override
    public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {
        return lock.tryLock(time, unit);
    }

    @Override
    public void unlock() {
        lock.unlock();
    }

    @Override
    public Condition newCondition() {
        return lock.newCondition();
    }
}
